Date: 8/12/2026 Form: 10-Q - Quarterly Report
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 10-Q

 

(Mark One)

X

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2026

or

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to

Commission File Number: 001-38266

 

SPERO THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

 

 

Delaware

46-4590683

 

 

(State or other jurisdiction of

incorporation or organization)

(I.R.S. Employer

Identification No.)

 

 

675 Massachusetts Avenue, 14th Floor

Cambridge, Massachusetts

02139

 

 

(Address of principal executive offices)

(Zip Code)

 

(857) 242-1600

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, $0.001 par value per share

SPRO

The Nasdaq Global Select Market

 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes X No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes X No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer,” "accelerated filer,” "smaller reporting company,” and "emerging growth company” in Rule 12b-2 of the Exchange Act.

 

Large accelerated filer

 

 

Accelerated filer

Non-accelerated filer

 

X

 

Smaller reporting company

X

 

 

 

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No X

As of August 7, 2026, the registrant had 58,234,827 shares of common stock, $0.001 par value per share, outstanding.

 

 

 


 

References to Spero Therapeutics

Unless otherwise stated, all references to "us,” "our,” "we,” "Spero,” "Spero Therapeutics,” "the Company” and similar references in this Quarterly Report on Form 10-Q refer to Spero Therapeutics, Inc. and its consolidated subsidiaries. Spero Therapeutics and its associated logos are registered trademarks of Spero Therapeutics, Inc. Other brands, names and trademarks contained in this Quarterly Report on Form 10-Q are the property of their respective owners.

 

Cautionary Note regarding Forward-Looking STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements that involve risks and uncertainties. We make such forward-looking statements pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. All statements other than statements of historical facts contained in this Quarterly Report on Form 10-Q are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as "may,” "will,” "should,” "expects,” "intends,” "plans,” "anticipates,” "believes,” "estimates,” "predicts,” "potential,” "continue” or the negative of these terms or other comparable terminology. These forward-looking statements include, but are not limited to, statements about:

our estimates regarding expenses, future revenue and capital requirements and our expectations regarding our ability to fund our operating expenses and capital expenditure requirements with our cash and cash equivalents;
the initiation, timing, design, progress and results of any preclinical studies and clinical trials;
the potential receipt of milestone payments and royalties on future sales under our License Agreement, as amended (the "GSK License Agreement”), with GlaxoSmithKline Intellectual Property (No. 3) Limited ("GSK”);
the implementation of our business model and strategic plans for our business and current and future product candidates;
the timely development of any new product candidates;
the scope, progress, expansion and costs of developing our current and future product candidates;
our ability to retain the continued service of our key professionals and to identify, hire and retain additional qualified professionals;
the timing of regulatory filings and likelihood of approvals for our current and future product candidates, including the timing of the filing of a U.S. Investigational New Drug application ("IND”) for SP001;
revenue received from commercial sales of Utebzi, and the timing and amount Utebzi royalties paid to affiliates of Healthcare Royalty Management, LLC under our royalty financing transaction agreements;
the future development, commercialization, marketing and manufacturing of our current and future product candidates, if approved;
the pricing, coverage and reimbursement of our current and future product candidates, if approved;
the scope of protection we are able to obtain and maintain for intellectual property rights covering our current and future product candidates;
our ability to enter into strategic arrangements and/or collaborations and the potential benefits of such arrangements;
developments relating to our competitors and our industry;
our and our strategic partners' ability to predict and manage the impact of government laws and regulations;
the impact of general economic conditions, including inflation; and
other risks and uncertainties, including those listed under Part II, Item 1A. "Risk Factors”.

Any forward-looking statements in this Quarterly Report on Form 10-Q reflect our current views with respect to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by these forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, among other things, those listed under Part II, Item 1A. "Risk Factors” and elsewhere in this Quarterly Report on Form 10-Q. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason, even if new information becomes available in the future.

i


 

This Quarterly Report on Form 10-Q also contains estimates, projections and other information concerning our industry, our business, and the markets for certain diseases, including data regarding the estimated size of those markets, and the incidence and prevalence of certain medical conditions. Information that is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained this industry, business, market and other data from reports, research surveys, studies and similar data prepared by market research firms and other third parties, industry, medical and general publications, government data and similar sources. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make or enter into.

Risk Factor Summary

We are providing the following summary of the risk factors contained in this Quarterly Report on Form 10-Q to enhance the readability and accessibility of our risk factor disclosures. We encourage you to carefully review the full risk factors contained in this Quarterly Report on Form 10-Q in their entirety for additional information regarding the material factors that make an investment in our securities speculative or risky. These risks and uncertainties include, but are not limited to, the following:

In June 2026, the U.S. Food and Drug Administration ("FDA”) approved GSK’s NDA resubmission for Utebzi™ (tebipenem pivoxil), and we have since shifted our focus and resources to advancing the development of SP001. Consequently, our business and prospects are substantially dependent on the successful development of SP001 and on our ability to receive milestone and royalty revenues from our collaboration partner, GSK, in connection with the commercialization of Utebzi. If we fail to execute successfully on the development of SP001 or our ability to receive royalty and milestone revenues from GSK is not in line with our current expectations, our business and prospects may be materially adversely affected.
Our ability to realize the value of Utebzi depends on commercialization efforts through our partnership with GSK.
Analyses of preliminary or interim data from our clinical studies that we announce or publish from time to time may change as more patient data become available and are subject to audit and verification procedures that could result in material changes in the final data.
Serious adverse events or undesirable side effects or other unexpected properties of any product candidates may be identified during development or after approval that could delay, prevent or cause the withdrawal of regulatory approval, limit the commercial potential, or result in significant negative consequences following marketing approval.
Even if a product candidate does obtain regulatory approval, it may never achieve the market acceptance by physicians, patients, hospitals, third-party payors and others in the medical community that is necessary for commercial success and the market opportunity may be smaller than we estimate.
If we or our collaborators are unable to establish sales, marketing and distribution capabilities or enter into sales, marketing and distribution agreements with third parties, we may not be successful in commercializing any product candidates if such product candidates are approved.
We face substantial competition from other pharmaceutical and biotechnology companies and our operating results may suffer if we fail to compete effectively.
We have not generated any revenue from the sale of our products, have a history of losses and expect to incur future losses. If we are unable to obtain additional capital, we may not be able to continue our operations on the scope or scale as currently conducted, and that could have a material adverse effect on our business, results of operations and financial condition.
If we are unable to raise capital when needed, or do not receive payments from our collaboration partnership agreements, it could limit our ability to support our operations.
We may not achieve the milestones triggering payments to us in our existing, or any future, license and collaboration agreements with third parties.
We have historically contracted with third parties for the manufacture of clinical supplies and expect to continue to do so in connection with any future clinical trials and commercialization of any potential product candidates. This reliance on third parties increases the risk that we will not have sufficient quantities of our existing and future product candidates or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

ii


 

If we fail to comply with our obligations in the agreements under which we in-license or acquire development or commercialization rights to products, technology or data from or to third parties, we could lose such rights that are important to our business.
If we are unable to obtain and maintain sufficient patent protection for our technology or our existing or future product candidates, or if the scope of the patent protection is not sufficiently broad, our competitors could develop and commercialize technology and products similar or identical to ours, and our ability to successfully commercialize our technology and product candidates may be adversely affected.
We have registered trademarks and pending trademark applications. Failure to enforce our registered marks or secure registration of our pending trademark applications could adversely affect our business.
If we or our collaboration partners are not able to obtain, or if there are delays in obtaining, required regulatory approvals, we will not be able to commercialize our existing and future product candidates, and our ability to generate revenue will be materially impaired.
The price of our common stock has been and, in the future, may continue to be volatile whether related or unrelated to our operations, which could result in a decline in value for our stockholders.

 

iii


 

iv


 

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements.

SPERO THERAPEUTICS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share data)

(Unaudited)

 

 

 

June 30,

 

 

December 31,

 

 

 

2026

 

 

2025

 

Assets

 

 

 

 

 

 

Current assets:

 

 

 

 

 

 

Cash and cash equivalents

 

$

50,774

 

 

$

40,265

 

Collaboration receivable, current - related party

 

 

 

 

 

25,359

 

Other receivables

 

 

25

 

 

 

28

 

Prepaid expenses and other current assets

 

 

785

 

 

 

1,634

 

Total current assets

 

 

51,584

 

 

 

67,286

 

Operating lease right of use assets

 

 

1,029

 

 

 

1,480

 

Other assets

 

 

153

 

 

 

153

 

Total assets

 

$

52,766

 

 

$

68,919

 

 

 

 

 

 

 

Liabilities and Stockholders' Equity

 

 

 

 

 

 

Current liabilities:

 

 

 

 

 

 

Accounts payable

 

 

155

 

 

 

693

 

Accrued expenses and other current liabilities

 

 

6,110

 

 

 

5,578

 

Operating lease liabilities

 

 

2,000

 

 

 

1,956

 

Income taxes payable

 

 

163

 

 

 

383

 

Deferred revenue, current - related party

 

 

 

 

 

258

 

Total current liabilities

 

 

8,428

 

 

 

8,868

 

Non-current operating lease liabilities

 

 

43

 

 

 

939

 

Other long-term liabilities

 

 

91

 

 

 

91

 

Total liabilities

 

 

8,562

 

 

 

9,898

 

Commitments and contingencies (Note 7)

 

 

 

 

 

 

Stockholders' equity:

 

 

 

 

 

 

Preferred stock, $0.001 par value; 10,000,000 shares authorized, no shares issued and
   outstanding as of June 30, 2026 and December 31, 2025

 

 

 

 

 

 

Common stock, $0.001 par value; 240,000,000 shares authorized as of June 30, 2026 and
   
120,000,000 shares authorized as of December 31, 2025; 58,146,910 shares issued and
   outstanding as of June 30, 2026 and
56,414,657 shares issued and outstanding as of
   December 31, 2025

 

 

58

 

 

 

56

 

Additional paid-in capital

 

 

511,967

 

 

 

510,031

 

Accumulated deficit

 

 

(467,821

)

 

 

(451,066

)

Total stockholders' equity

 

 

44,204

 

 

 

59,021

 

Total liabilities and stockholders' equity

 

$

52,766

 

 

$

68,919

 

 

 

The accompanying notes are an integral part of these condensed consolidated financial statements.

5


 

SPERO THERAPEUTICS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(In thousands, except share and per share data)

(Unaudited)

 

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Revenues:

 

 

 

 

 

 

 

 

 

 

 

 

Grant revenue

 

$

 

 

$

2,387

 

 

$

 

 

$

3,150

 

Collaboration revenue - related party

 

 

 

 

 

11,802

 

 

 

258

 

 

 

16,901

 

Collaboration revenue

 

 

 

 

 

 

 

 

 

 

 

12

 

Total revenues

 

 

 

 

 

14,189

 

 

 

258

 

 

 

20,063

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating expenses:

 

 

 

 

 

 

 

 

 

 

 

 

Research and development

 

 

3,434

 

 

 

10,672

 

 

 

6,343

 

 

 

24,278

 

General and administrative

 

 

6,492

 

 

 

5,878

 

 

 

11,379

 

 

 

12,702

 

Restructuring

 

 

 

 

 

83

 

 

 

 

 

 

258

 

Total operating expenses

 

 

9,926

 

 

 

16,633

 

 

 

17,722

 

 

 

37,238

 

Loss from operations

 

 

(9,926

)

 

 

(2,444

)

 

 

(17,464

)

 

 

(17,175

)

Other income (expense):

 

 

 

 

 

 

 

 

 

 

 

 

Interest income

 

 

377

 

 

 

740

 

 

 

713

 

 

 

1,604

 

Other income (expense), net

 

 

(3

)

 

 

4

 

 

 

(4

)

 

 

5

 

Total other income, net

 

 

374

 

 

 

744

 

 

 

709

 

 

 

1,609

 

Net loss and comprehensive loss

 

$

(9,552

)

 

$

(1,700

)

 

$

(16,755

)

 

$

(15,566

)

 

 

 

 

 

 

 

 

 

 

 

 

Net loss per share attributable to common stockholders, basic
   and diluted

 

$

(0.16

)

 

$

(0.03

)

 

$

(0.29

)

 

$

(0.28

)

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average shares of common stock outstanding, basic
   and diluted:

 

 

57,968,608

 

 

 

56,026,767

 

 

 

57,626,986

 

 

 

55,703,275

 

 

The accompanying notes are an integral part of these condensed consolidated financial statements.

6


 

SPERO THERAPEUTICS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

 

 

 

Six Months Ended June 30,

 

 

 

2026

 

 

2025

 

Cash flows from operating activities:

 

 

 

 

 

 

Net loss

 

$

(16,755

)

 

$

(15,566

)

Adjustments to reconcile net loss to net cash provided by (used in) operating activities:

 

 

 

 

 

 

Non-cash lease cost

 

 

453

 

 

 

551

 

Stock-based compensation

 

 

1,936

 

 

 

2,270

 

Changes in operating assets and liabilities:

 

 

 

 

 

 

Collaboration receivable, current and non-current - related party

 

 

25,359

 

 

 

24,938

 

Other receivables

 

 

3

 

 

 

625

 

Prepaid expenses and other current assets

 

 

849

 

 

 

616

 

Accounts payable

 

 

(538

)

 

 

(6,526

)

Accrued expenses and other current liabilities

 

 

532

 

 

 

(10,997

)

Deferred revenue, current and non-current

 

 

 

 

 

(12

)

Deferred revenue - related party, current and non-current

 

 

(258

)

 

 

(16,901

)

Operating lease liability

 

 

(852

)

 

 

(682

)

Income taxes payable

 

 

(220

)

 

 

(11

)

Net cash provided by (used in) operating activities

 

 

10,509

 

 

 

(21,695

)

Net increase (decrease) in cash and cash equivalents:

 

 

10,509

 

 

 

(21,695

)

Cash, cash equivalents and restricted cash at beginning of period

 

 

40,265

 

 

 

52,889

 

Cash, cash equivalents and restricted cash at end of period

 

$

50,774

 

 

$

31,194

 

 

The accompanying notes are an integral part of these condensed consolidated financial statements.

 

7


 

SPERO THERAPEUTICS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands, except share amounts)

(Unaudited)

 

 

 

 

 

 

 

 

 

Additional

 

 

 

 

 

Total

 

 

 

Common Stock

 

 

Paid-in

 

 

Accumulated

 

 

Stockholders'

 

 

 

Shares

 

 

Par Value

 

 

Capital

 

 

Deficit

 

 

Equity

 

Balances at March 31, 2026

 

 

57,891,493

 

 

$

58

 

 

$

511,145

 

 

$

(458,269

)

 

$

52,934

 

Issuance of common stock upon the vesting of restricted stock units

 

 

255,417

 

 

 

 

 

 

 

 

 

 

 

 

 

Stock-based compensation expense

 

 

 

 

 

 

 

 

822

 

 

 

 

 

 

822

 

Net loss

 

 

 

 

 

 

 

 

 

 

 

(9,552

)

 

 

(9,552

)

Balances at June 30, 2026

 

 

58,146,910

 

 

$

58

 

 

$

511,967

 

 

$

(467,821

)

 

$

44,204

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Additional

 

 

 

 

 

Total

 

 

 

Common Stock

 

 

Paid-in

 

 

Accumulated

 

 

Stockholders'

 

 

 

Shares

 

 

Par Value

 

 

Capital

 

 

Deficit

 

 

Equity

 

Balances at December 31, 2025

 

 

56,414,657

 

 

$

56

 

 

$

510,031

 

 

$

(451,066

)

 

$

59,021

 

Issuance of common stock upon the vesting of restricted stock units

 

 

1,732,253

 

 

 

2

 

 

 

 

 

 

 

 

 

2

 

Stock-based compensation expense

 

 

 

 

 

 

 

 

1,936

 

 

 

 

 

 

1,936

 

Net loss

 

 

 

 

 

 

 

 

 

 

 

(16,755

)

 

 

(16,755

)

Balances at June 30, 2026

 

 

58,146,910

 

 

$

58

 

 

$

511,967

 

 

$

(467,821

)

 

$

44,204

 

 

 

 

 

 

 

 

 

 

Additional

 

 

 

 

 

Total

 

 

 

Common Stock

 

 

Paid-in

 

 

Accumulated

 

 

Stockholders'

 

 

 

Shares

 

 

Par Value

 

 

Capital

 

 

Deficit

 

 

Equity

 

Balances at March 31, 2025

 

 

55,900,641

 

 

$

56

 

 

$

507,262

 

 

$

(473,504

)

 

$

33,814

 

Issuance of common stock upon the vesting of restricted stock units

 

 

286,667

 

 

 

 

 

 

 

 

 

 

 

 

 

Stock-based compensation expense

 

 

 

 

 

 

 

 

714

 

 

 

 

 

 

714

 

Net loss

 

 

 

 

 

 

 

 

 

 

 

(1,700

)

 

 

(1,700

)

Balances at June 30, 2025

 

 

56,187,308

 

 

$

56

 

 

$

507,976

 

 

$

(475,204

)

 

$

32,828

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Additional

 

 

 

 

 

Total

 

 

 

Common Stock

 

 

Paid-in

 

 

Accumulated

 

 

Stockholders'

 

 

 

Shares

 

 

Par Value

 

 

Capital

 

 

Deficit

 

 

Equity

 

Balances at December 31, 2024

 

 

54,593,527

 

 

$

55

 

 

$

505,706

 

 

$

(459,638

)

 

$

46,123

 

Issuance of common stock upon the vesting of restricted stock units

 

 

1,593,781

 

 

 

1

 

 

 

 

 

 

 

 

 

1

 

Stock-based compensation expense

 

 

 

 

 

 

 

 

2,270

 

 

 

 

 

 

2,270

 

Net loss

 

 

 

 

 

 

 

 

 

 

 

(15,566

)

 

 

(15,566

)

Balances at June 30, 2025

 

 

56,187,308

 

 

$

56

 

 

$

507,976

 

 

$

(475,204

)

 

$

32,828

 

 

The accompanying notes are an integral part of these condensed consolidated financial statements.

 

8


 

SPERO THERAPEUTICS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1.
Nature of the Business and Basis of Presentation

 

The Company is a clinical-stage biopharmaceutical company advancing next generation medicines for patients with immune-mediated diseases.

 

The Company's lead program, SP001, is a third-generation, fully humanized, Fc-silent IgG1 monoclonal antibody targeting CD40 Ligand ("CD40L”). On July 8, 2026, the Company entered into a license agreement (the "Innovent Agreement”) with Innovent Biologics (Suzhou) Co., Ltd. and Fortvita Biologics (USA), Inc. (collectively, "Innovent”), pursuant to which Innovent granted the Company an exclusive (even as to Innovent and its affiliates, subject to Innovent’s right to directly or indirectly conduct certain research, non-clinical development and manufacturing activities), sublicensable right and license under certain patent rights and know-how (the "Licensed Intellectual Property”) to research, develop, manufacture, and commercialize SP001, and certain backup monoclonal antibodies and derivative monoclonal antibodies, in each case targeting CD40L (the "Licensed Compounds”) and products containing the Licensed Compounds ("Licensed Products”) worldwide, excluding the mainland of the People’s Republic of China, Taiwan, Hong Kong and Macau (collectively, the "Innovent Territory”) (see Note 12, Subsequent Events).

 

SP001 targets CD40L, an immune signal protein that sits upstream of multiple immune pathways and has the potential to be developed across a range of immune-mediated diseases. The Company is developing SP001 for the treatment of patients with Immunoglobulin G4 related disease, or IgG4-RD.

 

In September 2022, the Company entered into an exclusive licensing agreement with GSK for Utebzi (tebipenem pivoxil), which included transfer of the IND application and NDA ownership to GSK. The Company initially developed Utebzi as tebipenem HBr. In May 2025, the Company and GSK announced that the pivotal Phase 3 PIVOT-PO trial evaluating Utebzi met its primary endpoint and was stopped early for efficacy. GSK submitted the data from the trial as part of an NDA Class 2 resubmission to the FDA in December 2025. On June 17, 2026, the Company and GSK announced that the FDA approved Utebzi, an oral antibiotic for the treatment of complicated urinary tract infections (cUTIs) including pyelonephritis, caused by certain susceptible pathogens in adult patients who have limited or no alternative oral treatment options.

 

On July 8, 2026, the Company entered into a $105.0 million royalty financing transaction with affiliates of HCRx, pursuant to which Healthcare Royalty Management, LLC ("HCRx”) will receive a portion of the future GSK Proceeds (as defined below) (see Note 12, Subsequent Events).

 

The Company is subject to risks and uncertainties common to companies in the biotechnology industry, including, but not limited to, development by competitors of new technological innovations, dependence on key personnel, protection of proprietary technology, compliance with government regulations, risks of failure or unsatisfactory results of preclinical and clinical trials, the need to obtain marketing approval for its product candidates, the need to successfully commercialize and gain market acceptance of its product candidates, the ability to in-license or acquire other products or new technologies, and the ability to secure additional capital to fund operations. The Company’s product candidates will require additional preclinical and clinical testing and regulatory approval prior to commercialization. These efforts require significant amounts of additional capital, adequate personnel and infrastructure and extensive compliance-reporting capabilities. Even if the Company’s product development efforts are successful, it is uncertain when, if ever, the Company will realize significant revenue from product sales.

The accompanying consolidated financial statements of the Company have been prepared in conformity with accounting principles generally accepted in the United States of America ("GAAP”) and include the accounts of the Company and its consolidated subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

To date, the Company has funded its operations with payments received under license and collaboration agreements and funding from government contracts, from the proceeds of multiple common stock offerings, and from proceeds received from a royalty financing transaction. Any of the Company has incurred recurring cash outflows from operating activities and losses in most periods since its inception. During the three months ended June 30, 2026 and 2025, the Company had net losses of $9.6 million and $1.7 million, respectively, and during the six months ended June 30, 2026 and 2025, the Company had net losses of $16.8 million and $15.6 million, respectively. In addition, as of June 30, 2026, the Company had an accumulated deficit of $467.8 million. The Company expects to continue to generate operating losses for the foreseeable future.

In accordance with Accounting Standards Update ("ASU”) 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic 205-40), the Company has evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date

9


 

that these consolidated financial statements are issued. As of the issuance date of these quarterly consolidated financial statements, based on its current operating plans, the Company expects that its existing cash and cash equivalents together with the proceeds received from the royalty financing transaction entered into in July 2026, and as more fully described below in Note 12 - Subsequent Events, will be sufficient to fund its operating expenses and capital expenditure requirements for at least 12 months from the issuance date of these quarterly consolidated financial statements. The Company currently expects that it will require additional funding to fund the development of any future product candidate(s) through regulatory approval and to support its continued operations. The Company may seek additional funding through public or private financings, debt financing, royalty finaning transactions, collaboration agreements, government grants or other sources. If the Company's access to capital is restricted or associated borrowing costs increase as a result of developments in financial markets, the Company's operations and financial condition could be adversely impacted. There is no assurance that the Company will be successful in obtaining sufficient funding on acceptable terms, if at all, and it could be forced to delay, reduce or eliminate some or all of its research and development programs, or product portfolio expansion efforts, which could materially affect its business prospects or its ability to continue operations.

Interim Financial Information

The consolidated balance sheet at December 31, 2025 was derived from audited financial statements, but does not include all disclosures required by GAAP. The accompanying unaudited condensed consolidated financial statements as of June 30, 2026, and for the three and six months ended June 30, 2026, have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC”) for interim financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2025, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, on file with the SEC. In the opinion of management, all adjustments, consisting only of normal recurring adjustments necessary for a fair statement of the Company’s financial position as of June 30, 2026, and results of operations for the three and six months ended June 30, 2026 and 2025, and cash flows for the six months ended June 30, 2026 and 2025 have been made. The results of operations for the three and six months ended June 30, 2026 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2026.

2.
Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting periods. Significant estimates and assumptions reflected in these condensed consolidated financial statements include, but are not limited to, revenue recognition, the accrual for clinical trial costs and other research and development expenses and the valuation of share-based awards. There may be changes to those estimates in future periods. On an ongoing basis, management evaluates its estimates, as there are changes in circumstances, facts and experience. Actual results may differ from those estimates or assumptions.

Segment Information

The Company manages its operations as a single operating segment for the purpose of assessing performance and making operating decisions, resulting in a single reportable segment. The Company is focused on advancing next-generation medicines in immunology and inflammation for patients with serious diseases and major treatment gaps.

Concentrations of Credit Risk

Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents. The Company maintains most of its cash and cash equivalents at two accredited financial institutions. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships.

As of June 30, 2026 and December 31, 2025, the Company had no off-balance sheet risks, including but not limited, to foreign exchange contracts, option contracts, or other hedging arrangements.

Cash Equivalents

The Company considers all highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents include cash held in banks and money market instruments.

10


 

Leases

At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the unique facts and circumstances present in the arrangement. Leases with a term greater than one year are recognized on the balance sheets as right-of-use assets and short-term and long-term lease liabilities, as applicable. The Company has elected not to recognize on the balance sheet leases with terms of one year or less. As of June 30, 2026 and 2025, the Company had no short-term leases with terms of one year or less. Options to renew a lease are not included in the Company’s initial lease term assessment unless there is reasonable certainty that the Company will renew. The Company's lease agreement with respect to its corporate headquarters extends through July 2027. The Company monitors its plans to renew its material leases on a quarterly basis.

Operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of lease payments over the expected remaining lease term. Certain adjustments to the right-of-use asset may be required for items such as incentives received. The interest rate implicit in lease contracts is typically not readily determinable. As a result, the Company utilizes its incremental borrowing rate ("IBR”), which reflects the fixed rate at which the Company could borrow on a collateralized basis the amount of the lease payments in the same currency, for a similar term, and in a similar economic environment. Since the Company does not have any debt and has not been rated by any major credit rating agency, the Company’s IBR was estimated by developing a synthetic credit rating for the Company.

Other Assets

Other assets consist of long-term prepayments and deposits.

Impairment of Long-Lived Assets

Long-lived assets consist of operating lease right-of-use assets. Long-lived assets to be held and used are tested for recoverability whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable. Factors that the Company considers in deciding when to perform an impairment review include significant underperformance of the business in relation to expectations, significant negative industry or economic trends and significant changes or planned changes in the use of the assets. If an impairment review is performed to evaluate a long-lived asset group for recoverability, the Company compares forecasts of undiscounted cash flows expected to result from the use and eventual disposition of the long-lived asset group to its carrying value. An impairment loss would be recognized when estimated undiscounted future cash flows expected to result from the use of an asset group are less than its carrying amount. The impairment loss would be based on the excess of the carrying value of the impaired asset group over its fair value, determined based on discounted cash flows.

Fair Value Measurements

Certain assets and liabilities are carried at fair value under GAAP. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable:

Level 1—Quoted prices in active markets for identical assets or liabilities.
Level 2—Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data.
Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques.

The Company’s cash equivalents are carried at fair value, determined according to the fair value hierarchy described above (see Note 3, Fair Value Measurements and Marketable Securities). The carrying values of the Company’s accounts payable and accrued expenses approximate their fair values due to the short-term nature of these liabilities.

Revenue Recognition – Collaboration Revenue

The Company has entered into licensing agreements that are evaluated under Accounting Standards Codification, Topic 606 ("Topic 606”), Revenue from Contracts with Customers, through which the Company licenses certain of its product candidates’ rights to a third party. Terms of these arrangements include various payment types, typically including one or more of the following: upfront license fees; development, regulatory and commercial milestone payments; payments for manufacturing supply services; and/or royalties on net sales of licensed products.

11


 

Under Topic 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration that the entity expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that an entity determines are within the scope of Topic 606, the entity performs the following five steps: (i) identify the contract with a customer; (ii) identify the performance obligations under the agreement; (iii) determine the transaction price, including constraint on variable consideration, if any; (iv) allocate the transaction price to the performance obligations in the contract; and (v) determine how the revenue will be recognized for each performance obligation. The Company only applies the five-step model to contracts when it is probable that the Company will collect the consideration to which it is entitled in exchange for the goods or services it transfers to a customer.

Once a contract is determined to be within the scope of Topic 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations. Arrangements that include rights to additional goods or services that are exercisable at a customer’s discretion are generally considered options. The Company assesses if these options provide a material right to the customer and if so, they are considered performance obligations. The exercise of a material right may be accounted for as a contract modification or as a continuation of the contract for accounting purposes.

The Company assesses whether each promised good or service is distinct for the purpose of identifying the performance obligations in the contract. This assessment involves subjective determinations and requires management to make judgments about the individual promised goods or services and whether such are separable from the other aspects of the contractual relationship. Promised goods and services are considered distinct provided that: (i) the customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (that is, the good or service is capable of being distinct) and (ii) the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (that is, the promise to transfer the good or service is distinct within the context of the contract). In assessing whether a promised good or service is distinct in the evaluation of a collaboration arrangement subject to Topic 606, the Company considers factors such as the research, manufacturing and commercialization capabilities of the collaboration partner and the availability of the associated expertise in the general marketplace. The Company also considers the intended benefit of the contract in assessing whether a promised good or service is separately identifiable from other promises in the contract. If a promised good or service is not distinct, the Company is required to combine that good or service with other promised goods or services until it identifies a bundle of goods or services that is distinct.

The transaction price is then determined and allocated to the identified performance obligations in proportion to their standalone selling prices ("SSP”) on a relative SSP basis. The SSP is determined at contract inception and is not updated to reflect changes between contract inception and when the performance obligations are satisfied. Determining the SSP for performance obligations requires significant judgment. In developing the SSP for a performance obligation, the Company considers applicable market conditions and relevant entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs. In certain circumstances, the Company may apply the residual method to determine the SSP of a good or service if the standalone selling price is considered highly variable or uncertain. The Company validates the SSP for performance obligations by evaluating whether changes in the key assumptions used to determine the SSP will have a significant effect on the allocation of arrangement consideration between multiple performance obligations.

If the consideration promised in a contract includes a variable amount, the Company estimates the amount of consideration to which it will be entitled in exchange for transferring the promised goods or services to a customer. The Company determines the amount of variable consideration by using the expected value method or the most likely amount method. The Company includes the unconstrained amount of estimated variable consideration in the transaction price. The amount included in the transaction price is constrained to the amount for which it is probable that a significant reversal of cumulative revenue recognized will not occur. At the end of each subsequent reporting period, the Company re-evaluates the estimated variable consideration included in the transaction price and any related constraint, and if necessary, adjusts its estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis in the period of adjustment.

If an arrangement includes development and regulatory milestone payments, the Company evaluates whether the milestones are considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the Company’s control or the licensee’s control, such as regulatory approvals, are generally not considered probable of being achieved until those approvals are received.

In determining the transaction price, the Company adjusts consideration for the effects of the time value of money if the timing of payments provides the Company with a significant benefit of financing. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between payment by the licensees and the transfer of the promised goods or services to the licensees will be one year or less. When an arrangement contains payment terms that are extended beyond one year, a significant financing component may exist. The Company assessed its revenue-generating arrangements in order to determine whether a significant financing component exists and concluded that a significant financing

12


 

component exists in certain arrangements. The significant financing component is calculated as the difference between the stated value and present value of the milestones payable and is recognized as interest income over the extended payment period. Judgment is used in determining: (1) whether the financing component in a license agreement is significant and, if so, (2) the discount rate used in calculating the significant financing component.

For arrangements with licenses of intellectual property that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes royalty revenue and sales-based milestones at the later of (i) when the related sales occur, or (ii) when the performance obligation to which the royalty has been allocated has been satisfied.

The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) each performance obligation is satisfied at a point in time or over time, and if over time this is based on the use of an output or input method.

In determining the accounting treatment for these arrangements, the Company develops assumptions to determine the stand-alone selling price for each performance obligation in the contract. The Company develops the estimated standalone selling price for the license using a discounted cash flow model. To develop this model, the Company applies significant judgment in the determination of the significant assumptions relating to forecasted future revenues, development timelines, the discount rate, and probabilities of technical and regulatory success. The Company develops the estimated standalone selling price for the research and development services using a discounted cash flow model. The assumptions to develop the estimated standalone selling price for the related research and development services include estimates of costs to be incurred to fulfill its obligations associated with the performance of the research and development services, plus a reasonable margin.

Research and Development Costs

Research and development costs are expensed as incurred. Research and development expenses are comprised of costs incurred in performing research and development activities, including personnel salaries, share-based compensation and benefits, allocated facilities costs, depreciation, manufacturing expenses, costs related to the Company’s government contract and grant arrangements, and external costs of outside vendors engaged to conduct preclinical development activities, clinical trials as well as the cost of licensing technology. Upfront payments and milestone payments made for the licensing of technology are expensed as research and development in the period in which they are incurred. Advance payments for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the related goods are delivered or the services are performed.

External Research and Development Costs and Accruals

The Company has entered into various research and development contracts with clinical research organizations and other companies both inside and outside of the United States. These agreements are generally cancelable, and related payments are recorded as research and development expenses as incurred. The Company recognizes external research and development costs based on an evaluation of the progress to completion of specific tasks using information provided to the Company by its service providers. This process involves reviewing open contracts and purchase orders, communicating with applicable personnel to identify services that have been performed on the Company’s behalf, and estimating the level of service performed and the associated cost incurred for the service when the Company has not yet been invoiced or otherwise notified of actual costs. There may be instances in which payments made to these vendors exceed the level of service provided and will result in a prepayment of the expense. The Company records accruals for estimated ongoing research and clinical trial costs based on the services received and efforts expended pursuant to multiple contracts with these vendors. When evaluating the adequacy of the accrued liabilities, the Company analyzes the progress of the studies or trials, including the phase or completion of events, invoices received and contracted costs. Significant judgments and estimates are made in determining the accrued balances at the end of any reporting period. Actual results could differ from the Company’s estimates. The Company’s historical accrual estimates have not been materially different from the actual costs.

Patent Costs

All patent-related costs incurred in connection with filing and prosecuting patent applications are expensed as incurred due to the uncertainty about the recovery of the expenditure. Amounts incurred are classified as general and administrative expenses.

Share-Based Compensation

The Company issues share-based awards to employees and directors in the form of stock options and restricted stock units. The Company measures and recognizes compensation expense for its share-based awards granted to its employees and directors based on the estimated grant date fair value in accordance with ASC 718, Compensation—Stock Compensation, and determines the fair value of restricted stock units based on the fair value of its common stock. The Company measures all share-based options granted to

13


 

employees and directors based on the fair value on the date of grant using the Black-Scholes option-pricing model. Compensation expense of those awards is recognized over the requisite service period, which is generally the vesting period of the respective award. The Company records the expense for awards with service-based conditions using the straight-line method over the requisite service period, net of any actual forfeitures. If the service condition is not met or not expected to be met, any compensation expense previously recognized to date associated with the awards will be reversed. The Company has also granted certain awards subject to performance-based vesting eligibility and a subsequent partial time-based vesting schedule. The Company classifies share-based compensation expense in its consolidated statements of operations and comprehensive loss in the same manner in which the award recipient’s payroll costs are classified or in which the award recipient’s service payments are classified.

Comprehensive Income (Loss)

Comprehensive income (loss) includes net loss as well as other changes in stockholders’ equity that result from transactions and economic events other than those with stockholders. For the three and six months ended June 30, 2026 and 2025, there were no components of other comprehensive income (loss), and therefore comprehensive loss is the same as net loss.

Net Income (Loss) per Share

When the Company issues shares that meet the definition of participating securities, the Company follows the two-class method when computing net income (loss) per share. The two-class method determines net income (loss) per share for each class of common and participating securities according to dividends declared or accumulated and participation rights in undistributed earnings. The two-class method requires income available to common stockholders for the period to be allocated between common and participating securities based upon their respective rights to receive dividends as if all income for the period had been distributed. Net income (loss) per share attributable to common stockholders is calculated based on net income (loss) attributable to the Company.

Basic net income (loss) per share attributable to common stockholders is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock outstanding for the period. Diluted net income (loss) attributable to common stockholders is computed by adjusting net income (loss) attributable to common stockholders to reallocate undistributed earnings based on the potential impact of dilutive securities. Diluted net income (loss) per share attributable to common stockholders is computed by dividing the diluted net income (loss) attributable to common stockholders by the weighted average number of shares of common stock outstanding for the period, including potential dilutive shares of common stock assuming the dilutive effect of common stock equivalents.

Income Taxes

The Company accounts for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the consolidated financial statements or in the Company’s tax returns. Deferred tax assets and liabilities are determined on the basis of the differences between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Changes in deferred tax assets and liabilities are recorded in the provision for income taxes. The Company assesses the likelihood that its deferred tax assets will be recovered from future taxable income and, to the extent it believes, based upon the weight of available evidence, that it is more likely than not that all or a portion of the deferred tax assets will not be realized, a valuation allowance is established through a charge to income tax expense. Potential for recovery of deferred tax assets is evaluated by estimating the future taxable profits expected and considering prudent and feasible tax planning strategies.

The Company accounts for uncertainty in income taxes recognized in the consolidated financial statements by applying a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination by the taxing authorities. If the tax position is deemed more-likely-than-not to be sustained, the tax position is then assessed to determine the amount of benefit to recognize in the consolidated financial statements. The amount of the benefit that may be recognized is the largest amount that has a greater than 50% likelihood of being realized upon ultimate settlement. The provision for income taxes includes the effects of any resulting tax reserves, or unrecognized tax benefits, that are considered appropriate as well as the related net interest and penalties.

 

Recently Issued Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board ("FASB”) or other standard setting bodies and adopted by the Company as of the specified effective date. Unless otherwise noted, the Company believes that the impact of recently issued standards that are not yet effective will not have a material impact on its consolidated financial statements and disclosures.

In December 2025, the FASB issued ASU 2025-10, Accounting for Government Grants Received by Business Entities, to establish guidance on the recognition, measurement, and presentation of government grants received by business entities. The new

14


 

guidance leverages the principles in the accounting framework for government assistance in IFRS, specifically IAS 20, Accounting for Government Grants and Disclosure of Government Assistance; makes certain targeted improvements; and modifies certain of the existing disclosure requirements in ASC 832, Government Assistance. The new guidance is effective for public business entities in annual periods beginning after December 15, 2028 (including interim periods within) and one year later for all other entities, with early adoption permitted in any period for which financial statements have not yet been issued. The guidance can be applied on a modified prospective basis, a modified retrospective basis, or a full retrospective basis. The Company is evaluating ASU 2025-10 to determine its impact on the Company's consolidated financial statements but does not expect there will be a material impact.

In September 2025, the FASB issued ASU 2025-07, Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract. The new guidance will reduce the number of contracts (or embedded features within instruments) that are accounted for as derivatives under ASC 815, Derivatives and Hedging. The ASU adds a new scope exception to the derivatives guidance for underlying based on the operations or activities specific to one of the parties to the contract. The ASU also clarifies that share-based noncash consideration received from a customer as consideration for the transfer of goods or services in a revenue contract is subject to the revenue guidance and not the financial instruments guidance unless and until the company’s right to receive or retain the share-based noncash consideration is "unconditional,” as defined in the ASU. This ASU is effective for all entities for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. This standard became effective for the Company on January 1, 2026. The Company adopted ASU 2025-07 in the first quarter of 2026 and it did not have a material impact on its consolidated financial statements and related disclosures.

In July 2025, the FASB issued ASU 2025-05, Measurement of Credit Losses for Accounts Receivable and Contract Assets. The ASU relates to estimating credit losses under Current Expected Credit Losses for current accounts receivable and current contract assets arising from revenue transactions accounted for under ASC 606, Revenue from Contracts with Customers, including those acquired in a transaction accounted for under ASC 805, Business Combinations. The ASU does not apply to other types of accounts receivable and loans. For all entities, the ASU provides a practical expedient to assume that current conditions as of the balance sheet date will persist through the reasonable and supportable forecast period for eligible assets. Entities will still be required to adjust historical data used in the estimation to reflect current conditions. In addition, entities other than public business entities can also make an accounting policy election to consider subsequent collections of balances received after the balance sheet date through a date selected by the entity. This policy election is available only if the entity elects the practical expedient. The date selected must be when or before financial statements are available to be issued. Under this accounting policy election, no credit loss would be recorded on balances that have been collected through subsequent receipts. Remaining uncollected amounts would be evaluated for credit losses using the practical expedient. This ASU is effective for all entities for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. This standard became effective for the Company on January 1, 2026. The Company adopted ASU 2025-05 in the first quarter of 2026 and it did not have a material impact on its financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, "Disaggregation of Income Statement Expenses”, to provide disaggregated disclosures of specific expense categories underlying all relevant income statement expense line items on an annual and interim basis. The disclosure requirements will be applied on a prospective basis, with the option to apply them retrospectively. The effective date for the standard is for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The Company is evaluating ASU 2024-03 to determine its impact on the Company's consolidated financial statements but does not expect there will be a material impact.

3.
Fair Value Measurements and Marketable Securities

The following tables present information about the Company’s assets that are measured at fair value on a recurring basis (in thousands):

 

 

 

Fair Value Measurements at June 30, 2026 Using:

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets:

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

 

 

$

50,101

 

 

$

 

 

$

50,101

 

Total cash equivalents

 

 

 

 

 

50,101

 

 

 

 

 

 

50,101

 

 

 

 

Fair Value Measurements at December 31, 2025 Using:

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets:

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

 

 

$

39,672

 

 

$

 

 

$

39,672

 

Total cash equivalents

 

 

 

 

 

39,672

 

 

 

 

 

 

39,672

 

 

15


 

 

Excluded from the tables above is cash of $0.7 million and $0.6 million as of June 30, 2026 and December 31, 2025, respectively. During the six months ended June 30, 2026, there were no transfers between Level 1, Level 2 and Level 3 categories.

4.
Accrued Expenses and Other Current Liabilities

The following table presents the Company’s accrued expenses and other current liabilities as of June 30, 2026 and December 31, 2025 (in thousands):

 

 

 

June 30, 2026

 

 

December 31, 2025

 

Accrued payroll and related expenses

 

$

968

 

 

$

3,060

 

Accrued external research and development expenses

 

 

2,499

 

 

 

1,741

 

Accrued professional fees

 

 

2,553

 

 

 

644

 

Accrued other

 

 

90

 

 

 

133

 

Total accrued expenses and other current liabilities

 

$

6,110

 

 

$

5,578

 

 

5.
Common Stock

On June 23, 2026, the Company filed a Certificate of Amendment to its Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware to increase the number of shares of the Company’s common stock authorized for issuance from 120,000,000 shares to 240,000,000 shares (the "Charter Amendment”). The Charter Amendment was approved by the Company’s stockholders at its 2026 annual meeting of stockholders held on June 23, 2026.

"At-the-Market” Offering

The Company filed a universal shelf registration statement on Form S-3 with the SEC on March 15, 2024, which became effective on March 22, 2024, and pursuant to which the Company registered for sale up to $300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that the Company may determine, including up to $75.0 million of its common stock available for issuance pursuant to the Sales Agreement.

Under the Controlled Equity Offering Sales Agreement (the "Sales Agreement”) with Cantor Fitzgerald & Co. ("Cantor”), Cantor may sell shares of the Company’s common stock by any method permitted by law deemed to be an "at-the-market” offering as defined in Rule 415 of the Securities Act of 1933, as amended (the "Securities Act”), subject to the terms of the Sales Agreement.

During the three and six months ended June 30, 2026 and 2025, and through the issuance date of these condensed consolidated financial statements, the Company did not sell any shares of its common stock under the Sales Agreement.

6.
Share-Based Compensation

The Company maintains three equity compensation plans, the 2017 Stock Incentive Plan, as amended (the "2017 Plan”), the 2019 Inducement Equity Incentive Plan, as amended (the "2019 Inducement Plan”), and the 2026 Stock Incentive Plan (the "2026 Plan” and together with the 2017 Plan and the 2019 Inducement Plan, the "Equity Plans”), which provide or provided for the grant of share-based awards to its directors, officers, consultants and other employees. The Equity Plans provide or provided for the grant of non-qualified and incentive stock options, as well as restricted stock units ("RSUs”), restricted stock and other share-based awards.

2017 Stock Incentive Plan

On June 28, 2017, the Company’s stockholders approved the 2017 Plan. The 2017 Plan provides for the grant of incentive stock options, non-statutory stock options, stock grants and share-based awards. The 2017 Plan is administered by the Board of Directors, or at the discretion of the Board of Directors, by a committee of the Board of Directors. The exercise prices, vesting and other restrictions are determined at the discretion of the Board of Directors, or their committee if so delegated, except that the exercise price per share of stock options may not be less than 100% of the fair market value of the share of common stock on the date of grant and the term of stock option may not be greater than ten years. The number of shares initially reserved for issuance under the 2017 Plan was 1,785,416 shares of common stock. The shares of common stock underlying any awards that were forfeited, cancelled, repurchased or were otherwise terminated by the Company under the 2017 Plan would have been added back to the shares of common stock available for issuance under the 2017 Plan.

Subsequently, the Company’s stockholders approved amendments to the 2017 Plan, to increase the total number of shares reserved for issuance under the 2017 Plan from 1,785,416 to 18,188,627 and made certain other amendments to the plan.

16


 

On June 23, 2026, the Company’s stockholders approved the 2026 Plan to replace the 2017 Plan which will expire by its terms on June 30, 2027. As of June 23, 2026, there will be no further grants of awards under the 2017 Plan but awards previously granted under the 2017 Plan will remain in effect pursuant to its existing terms until its expiration.

2019 Equity Incentive Plan

On March 11, 2019, the Company adopted the 2019 Inducement Plan to reserve 331,500 shares of its common stock to be used exclusively for grants of awards to individuals that were not previously employees or directors of the Company as a material inducement to such individuals’ entry into employment with the Company within the meaning of Rule 5635(c)(4) of the Nasdaq Listing Rules. The terms and conditions of the 2019 Inducement Plan are substantially similar to those of the 2017 Plan.

Subsequently, the Board of Directors approved amendments to the 2019 Inducement Plan to increase the number of shares of common stock authorized for issuance from 331,500 to 3,156,500 shares.

As of June 30, 2026, there were 1,281,112 shares available for grant under the 2019 Inducement Plan, as amended.

2026 Stock Incentive Plan

On June 23, 2026, the Company’s stockholders approved the 2026 Plan. The 2026 Plan provides for the grant of incentive stock options, non-qualified stock options, restricted and unrestricted stock awards and other stock-based awards. The 2026 Plan is administered by the Board of Directors, or at the discretion of the Board of Directors, by a committee of the Board of Directors. The exercise prices, vesting and other restrictions are determined at the discretion of the Board of Directors, or their committee if so delegated, except that the exercise price per share of stock options may not be less than 100% of the fair market value of the share of common stock on the date of grant and the term of stock option may not be greater than ten years. The initial number of shares available for issuance under the 2026 Plan was 12,895,866 shares of common stock, which is equal to the sum of (x) 5,949,342 shares, which is the number of shares of common stock reserved for issuance under the 2017 Plan that remained available for grant under the 2017 Plan immediately prior to the date that the 2026 Plan was approved by the Company's stockholders, and (y) 6,897,357 shares, which is the number of shares of common stock subject to awards granted under the 2017 Plan that were outstanding as of the date that the 2026 Plan was approved by the Company's stockholders and which awards expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased by the Company at their original issuance price pursuant to a contractual repurchase right (subject, however, in the case of incentive stock options, to any limitations under the Internal Revenue Code of 1986, as amended, and any regulations thereunder).

As of June 30, 2026, there were 5,872,300 shares available for grant under the 2026 Plan.

The Equity Plans

The following table summarizes stock option activity under the Equity Plans for the six months ended June 30, 2026:

 

 

 

2017 Plan

 

 

2019 Inducement Plan

 

 

2026 Plan

 

 

Total Number of Stock Options

 

Outstanding as of December 31, 2025

 

 

2,356,266

 

 

 

44,167

 

 

 

 

 

 

2,400,433

 

Granted

 

 

1,118,350

 

 

 

 

 

 

140,000

 

 

 

1,258,350

 

Forfeited

 

 

(89,750

)

 

 

 

 

 

 

 

 

(89,750

)

Outstanding as of June 30, 2026

 

 

3,384,866

 

 

 

44,167

 

 

 

140,000

 

 

 

3,569,033

 

 

As of June 30, 2026, a total of 21,345,127 shares of common stock have been authorized and reserved for issuance under the Equity Plans and 7,153,412 shares of common stock were available for future issuance under such plans.

Stock Option Valuation

The fair value of stock options is estimated using the Black-Scholes option-pricing model. The Company does not have sufficient company-specific historical and implied volatility information and it therefore estimates its expected share volatility based on the historical volatility of a set of publicly traded peer companies. The Company has estimated the expected term of the Company’s stock option awards utilizing the "simplified” method for awards that qualify as "plain-vanilla.” The risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the award for time periods approximately equal to the expected term of the award. Expected dividend yield is based on the fact that the Company has never paid cash dividends and does not expect to pay any cash dividends in the foreseeable future.

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For the six months ended June 30, 2026, the assumptions that the Company used in the Black-Scholes option-pricing model to determine the fair value of stock option awards granted to employees were as follows, presented on a weighted average basis:

 

 

 

Six Months Ended June 30,

 

 

 

2026

 

Risk-free interest rate

 

 

3.50

%

Expected term (in years)

 

 

5.48

 

Expected volatility

 

 

92.4

%

Expected dividend yield

 

 

0.0

%

 

The following table summarizes stock option activity under the Equity Plans during the six months ended June 30, 2026:

 

 

 

Number of
Shares

 

 

Weighted
Average
Exercise
Price

 

 

Weighted
Average
Contractual
Term

 

 

Aggregate
Intrinsic
Value

 

 

 

 

 

 

 

 

 

(in years)

 

 

(in thousands)

 

Outstanding as of December 31, 2025

 

 

2,400,433

 

 

$

9.98

 

 

 

3.62

 

 

$

58

 

Granted

 

 

1,258,350

 

 

 

2.22

 

 

 

 

 

 

 

Forfeited or cancelled

 

 

(89,750

)

 

 

11.68

 

 

 

 

 

 

 

Outstanding as of June 30, 2026

 

 

3,569,033

 

 

$

7.20

 

 

 

5.4

 

 

$

57

 

Outstanding as of June 30, 2026 - vested and
   expected to vest

 

 

3,569,033

 

 

$

7.20

 

 

 

5.4

 

 

$

57

 

Exercisable at June 30, 2026

 

 

2,315,625

 

 

$

9.90

 

 

 

3.11

 

 

$

48

 

 

The weighted average grant-date fair value of awards granted during the six months ended June 30, 2026 was $1.83 per share. No stock options were granted during the six months ended June 30, 2025. No stock options were exercised during both the six months ended June 30, 2026 and 2025. The Company satisfies stock option exercises with newly issued shares of its common stock.

 

As of June 30, 2026, total unrecognized compensation related to unvested stock option grants was $2.1 million. This amount is expected to be recognized over a weighted-average period of 3.22 years.

Restricted Stock Units

The following table summarizes RSU activity under the Equity Plans (excluding performance-based RSUs) during the six months ended June 30, 2026:

 

 

 

Number of
RSU Shares

 

 

Weighted Average Grant Date Fair Value

 

Outstanding as of December 31, 2025

 

5,436,774

 

 

$

1.33

 

Granted

 

922,525

 

 

 

2.22

 

Vested and released

 

(1,732,253

)

 

 

1.70

 

Forfeited or cancelled

 

(453,263

)

 

 

1.21

 

Outstanding as of June 30, 2026

 

4,173,783

 

 

$

1.39

 

 

As of June 30, 2026, there was approximately $4.7 million of total unrecognized compensation expense related to RSUs, which is expected to be recognized over a weighted-average period of approximately 2.36 years.

The fair value of the RSUs is determined on the date of grant based on the market price of the Company’s common stock on that date. Each RSU represents the right to receive one share of the Company’s common stock upon vesting. The RSUs vest in four equal annual installments, subject to the individual’s continued service to the Company through the applicable vesting date, and are subject to the terms and conditions of the Company’s form of RSU agreement under the 2017 Plan, 2019 Inducement Plan and 2026 Plan, as applicable.

18


 

Share-Based Compensation Expense

The Company recorded share-based compensation expense for both RSUs and stock options in the following expense categories of its consolidated statements of operations and comprehensive loss (in thousands):

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Research and development expenses

 

$

316

 

 

$

395

 

 

$

588

 

 

$

924

 

General and administrative expenses

 

 

506

 

 

 

319

 

 

 

1,348

 

 

 

1,346

 

Total

 

$

822

 

 

$

714

 

 

$

1,936

 

 

$

2,270

 

 

7.
Commitments and Contingencies

As a public biotechnology company, the Company operates in a regulated environment, and from time to time, is party to various legal proceedings and receives regulatory inquiries arising in the ordinary course of business. The costs and outcome of litigation, regulatory, investigatory or other proceedings cannot be predicted with certainty, and some lawsuits, claims, actions or proceedings may be disposed of unfavorably to the Company and could have a material adverse effect on the Company’s results of operations or financial condition. In addition, intellectual property disputes often have a risk of injunctive relief which, if imposed against the Company, could materially and adversely affect its financial condition or results of operations. If a matter is both probable to result in a material liability and the amount of loss can be reasonably estimated, the Company accrues the estimated loss. Disclosure is provided when a loss is considered probable, but the loss is not reasonably estimable and when a material loss is reasonably possible but not probable. If such a loss is not probable or cannot be reasonably estimated, a liability is not recorded. As of June 30, 2026 and December 31, 2025, no material accruals have been recorded for potential contingencies related to these matters.

License Agreements

The Company has entered into license agreements with various parties under which it is obligated to make contingent and non-contingent payments (see Note 9, License, Collaboration and Service Agreements and Note 12, Subsequent Events).

Operating Leases

The Company has entered into an operating lease agreement with respect to its corporate headquarters located at 675 Massachusetts Avenue, Cambridge, Massachusetts. In September 2025, the Company entered into sublease agreements for a portion of its lease through the remainder of its lease term. The Company recorded sublease income as a reduction of lease expense, in an amount of $0.2 million and $0.3 million for the three and six months ended June 30, 2026 and 2025, respectively.

Indemnification Agreements

In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, business partners and other parties with respect to certain matters including, but not limited to, losses arising out of breach of such agreements or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with members of its Board of Directors and its officers that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or executive officers. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in many cases, unlimited. The process surrounding the Investigation and the Wells Notice (both as defined below) has resulted in legal expenses and certain liabilities for the Company and the named individuals, and each of the named individuals, as directors and/or officers of the Company at the time of the initiation of the Investigation and Wells Notice, are entitled to indemnification for certain costs associated with the Investigation and the Wells Notice. The Company maintains a general liability insurance policy that covers certain expenses and liabilities of our directors and officers arising out of claims based on acts or omissions in their capacities as directors or officers (the "D&O Insurance”), however, the total expenses and liabilities in connection with the Investigation and the Wells Notice and the amount that will be covered by such D&O Insurance is unknown at this time. The Company is not aware of any claims under indemnification arrangements that will have a material effect on its financial position, results of operations or cash flows, and it has not accrued any liabilities related to such obligations in its consolidated financial statements as of June 30, 2026 or December 31, 2025.

19


 

Legal Proceedings

SEC Investigation and Wells Notice

On January 9, 2025, the Company responded to a "Wells Notice” from the staff of the Boston Regional Office (the "Staff”) of the SEC regarding its preliminary determination to recommend a civil enforcement action or administrative proceeding against the Company, its former Chief Executive Officer and former member of the Board of Directors, Ankit Mahadevia, M.D. ("Dr. Mahadevia”), and its former Chief Financial Officer, President and Chief Executive Officer, Satyavrat "Sath” Shukla ("Mr. Shukla”), relating to certain public disclosures by the Company from March 31, 2022 leading up to the Company’s announcement on May 3, 2022 that it had determined to cease commercialization of tebipenem pivoxil based on feedback from the FDA, and whether the Company’s disclosures may have violated the federal securities laws (the "Investigation”).

On January 16, 2026, acting pursuant to an offer of settlement submitted by Dr. Mahadevia and Mr. Shukla, the SEC issued an order instituting cease-and-desist proceedings, making findings, and imposing a cease-and-desist order pursuant to Section 8A of the Securities Act, directing Dr. Mahadevia and Mr. Shukla to cease and desist from committing or causing any violations of Section 17(a)(2) of the Securities Act, 15 U.S.C. § 77q(a)(2) (the "SEC Order”). In the SEC Order, the SEC made findings that, from March 31, 2022 to May 3, 2022, Dr. Mahadevia and Mr. Shukla, violated Section 17(a)(2) of Securities Act, which provides that it is unlawful for any person, in the offer or sale of a security, to "obtain money or property by means of any untrue statement of material fact” or a material omission necessary to make statements made not misleading. A violation of this provision does not require scienter and may rest on a finding of negligence. Dr. Mahadevia and Mr. Shukla consented to entry of the SEC Order without admitting or denying the findings contained therein, except as to jurisdiction.

On January 20, 2026, the Company received a letter (the "Letter”) from the SEC advising the Company that the SEC has concluded its investigation into the Company and that, based on the information as of the date of the Letter, the SEC does not intend to recommend an enforcement action against the Company at this time. The Letter was provided under the guidelines set out in the final paragraph of Securities Act Release No. 5310.

The Company and Mr. Shukla mutually decided to separate, and Mr. Shukla also resigned from the Board of Directors, in each case effective as of May 2, 2025. On January 30, 2026, Dr. Mahadevia resigned from the Board of Directors, including from his service on the Development Committee of the Board of Directors and from all officer and director positions he then held with any and all subsidiaries of the Company, effective as of January 30, 2026.

8.
Government Contract

BARDA

In July 2018, the Company was awarded a contract from Biomedical Advanced Research and Development Authority ("BARDA”) of up to $44.2 million to develop tebipenem pivoxil for the treatment of cUTI caused by antibiotic resistant Gram-negative bacteria and for assessment against biodefense pathogens. The original award committed initial funding of $15.7 million over a three-year base period from July 1, 2018 to June 30, 2021 for cUTI development activities. Through a number of contract modifications and the exercise of additional contract options by BARDA, the committed funding was increased to $65.6 million as of March 31, 2026, and the period of performance extended through October 31, 2026.

The Company did not recognize any grant revenue under the BARDA agreement for the three and six months ended June 30, 2026 and recognized $2.4 million and $3.1 million of grant revenue for the three and six months ended June 30, 2025, respectively. As of June 30, 2026, of the $65.6 million of committed funding, the Company has cumulatively recognized $65.1 million of grant revenue under the BARDA agreement.

On July 6, 2026, the Company and BARDA mutually agreed to terminate the contract between the parties, and BARDA deobligated all remaining funds under the contract. The Company will not receive any additional funding from BARDA under this contract.

9.
License, Collaboration and Service Agreements

The Company has certain obligations under license agreements with third parties that include annual maintenance fees and payments that are contingent upon achieving various development, regulatory and commercial milestones. Pursuant to these license agreements, the Company is required to make milestone payments if certain development, regulatory and commercial milestones are achieved, and may have certain additional research funding obligations. Also, pursuant to the terms of each of these license agreements, when and if commercial sales of a product commence, the Company will pay royalties to its licensors on net sales of the respective products.

20


 

Tebipenem Pivoxil Agreements

GSK License Agreement

On November 7, 2022, the Company closed the transactions contemplated by the License Agreement (the "GSK License Agreement”), with GlaxoSmithKline Intellectual Property (No. 3) Limited ("GSK”), which was entered into on September 21, 2022. Pursuant to the terms of the GSK License Agreement, the Company granted GSK an exclusive royalty-bearing license, with the right to grant sublicenses, under the Company’s intellectual property and regulatory documents and a sublicense under certain intellectual property of Meiji Seika Pharma Co. Ltd. ("Meiji”) and Meiji’s regulatory documents to develop, manufacture and commercialize tebipenem HBr and tebipenem pivoxil and products that contain tebipenem HBr and tebipenem pivoxil (the "GSK Licensed Products”) in all territories, except certain Asian countries previously licensed to Meiji (Japan, Bangladesh, Brunei, Cambodia, China, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, South Korea, Taiwan, Thailand and Vietnam (the "Meiji Territory”)) (the "GSK Territory”). If the Company’s license with Meiji is terminated, or if Meiji forfeits or loses its rights to develop, manufacture and commercialize tebipenem pivoxil and products that contain tebipenem pivoxil in any countries in the Meiji Territory, then GSK will have an exclusive first right to negotiate with the Company to add any such countries to the GSK Territory.

Under the terms of the GSK License Agreement, in November 2022, the Company received an upfront payment of $66.0 million for GSK to secure rights to the GSK Licensed Products.

In July 2023, the Company received written agreement from the FDA, under a special protocol assessment, on the design and size of PIVOT-PO, a pivotal Phase 3 clinical trial of tebipenem pivoxil in patients with cUTI, including acute pyelonephritis. Under the terms of the GSK License Agreement, the Company received a $30.0 million development milestone payment during the third quarter of 2023.

In December 2023, the Company commenced enrollment in PIVOT-PO with its first patient, first visit. Under the terms of the GSK License Agreement, the Company was entitled to receive a $95.0 million development milestone payable in four equal semiannual installments. The Company received the first installment payment for such development milestone in the first quarter of 2024, the second installment payment in the third quarter of 2024, the third installment payment in the first quarter of 2025 and received the final development milestone installment payment in the third quarter of 2025.

In May 2025, the Company announced that the PIVOT-PO Phase 3 trial met its primary endpoint and was stopped early for efficacy after a review of data from a pre-specified interim analysis of data from 1,690 patients enrolled in the trial.

In December 2025, GSK resubmitted the NDA for tebipenem pivoxil to the FDA. The Company became entitled to receive a $25.0 million milestone payment upon the filing of the NDA with the FDA, which the Company received in February 2026. On June 17, 2026, the Company and GSK announced that the FDA approved GSK’s NDA resubmission for Utebzi (tebipenem pivoxil).

Remaining potential payments under the GSK License Agreement, which include milestones and royalties based on commercial launch, and achievement of pre-specified sales thresholds, are as follows (in millions):

 

Contingent Event

Milestone Payment

Total potential commercial milestones based on first commercial sales

$101.0*

 

          First commercial sale of a product in the United States

 -

$51.0

          Second anniversary of first commercial sale of a product in the United States

 -

$25.0

          First commercial sale of a product in two European countries

 -

$25.0

Total potential sales milestone payments

$225.0

 

          Net annual sales greater than $200.0

 -

$25.0

          Net annual sales greater than $300.0

 -

$25.0

          Net annual sales greater than $400.0

 -

$25.0

          Net annual sales greater than $500.0

 -

$50.0

          Net annual sales greater than $750.0

 -

$50.0

          Net annual sales greater than $1,000.0

 -

$50.0

 

*Under the terms of the GSK License Agreement, the maximum potential milestone amount was revised from $150.0 million after PIVOT-PO was stopped early for efficacy following completion of a pre-specified interim analysis of data from 1,690 patients enrolled in the trial, thereby reducing the overall cost of the trial to the Company; the maximum potential milestone payment of $150.0 million was contingent upon the trial continuing to full enrollment, with 2,637 patients enrolled in the trial.

In addition to the milestones described above, GSK is obligated to pay royalties to the Company on annual net sales of GSK Licensed Products in the GSK Territory. Such royalties are 1% for annual sales up to $750.0 million each year and range from high single-digit percentages on annual net sales above $750.0 million each year to low double-digit percentages on annual net sales above $1,000.0 million each year.

21


 

Royalty Financing Transaction

On July 8, 2026, the Company and its affiliates entered into a $105.0 million royalty financing transaction with affiliates of HCRx pursuant to which HCRx will receive a portion of the future milestone and royalty payments due to the Company from GSK arising under the GSK License Agreement (the "GSK Proceeds”). Pursuant to the transaction, the parties entered into, among other documents, a Note Purchase and Guaranty Agreement (the "NPA”) for senior secured notes in an aggregate principal amount of $105.0 million (the "Notes”), a Royalty and Milestone Payment Interest Purchase and Sale Agreement (the "RPA”) and a Limited Recourse Guaranty (the "Limited Guaranty”). Under the terms of the NPA, the Notes and other obligations under the NPA are generally payable solely from GSK Proceeds, unless voluntarily prepaid at the option of the Company prior to maturity with a premium or subject to certain mandatory prepayment triggers and foreclosure rights. Under the terms of the RPA, the Company sold 65% of the GSK Proceeds arising after the payment in full of the Notes while the Company retains an interest of 35% of the GSK Proceeds arising after payment in full of the Notes. Pursuant to the Limited Guaranty, the Company guarantees, subject to certain limitations set forth therein, the obligations of the Company’s affiliates under the NPA and RPA. In connection with the NPA and RPA, the Company will provide certain servicing, management and administrative functions on behalf of its affiliates (see Note 12, Subsequent Events).

Amendments to the GSK License Agreement

In July 2023, the Company entered into Amendment 1 to the GSK License Agreement, which updated the timeframe for technology transfer in the GSK License Agreement.

In December 2023, the Company entered into Amendment 2 to the GSK License Agreement, which added a country to the locations for PIVOT-PO enrollment. Under the terms of Amendment 2, the Company may receive up to an additional $4.3 million in milestones based on activities in such country. The Company received the first milestone payment under Amendment 2 of $1.2 million in August 2024, the second milestone payment of $1.3 million in October 2024 and the third milestone payment of $0.7 million in February 2025. Since the PIVOT-PO trial was stopped early for efficacy, the fourth milestone of $1.1 million will not be achieved.

In March 2024, the Company entered into Amendment 3 to the GSK License Agreement, which assigns its rights to Product Trademarks (as defined in Amendment 3 to the GSK License Agreement) to GSK.

In October 2024, the Company entered into Amendment 4 to the GSK License Agreement, under which the Company received an additional $0.8 million upon completion of activities related to an additional Phase 1 clinical study. The Company received $0.4 million of the milestone in January 2025 and received the remaining payment of $0.4 million in February 2026.

In July 2026, the Company assigned the GSK License Agreement to its affiliate in connection with the royalty financing transaction with affiliates of HCRx (see Note 12, Subsequent Events).

Royalties are subject to reduction in the event of third-party licenses, entry of a generic product or expiration of patent and regulatory exclusivity prior to the tenth anniversary of the first commercial sale of a GSK Licensed Product in a particular country.

The Company was responsible for the execution and costs of the follow-up Phase 3 clinical trial of tebipenem pivoxil. GSK is responsible for the execution and costs of any additional further development, including additional Phase 3 regulatory filing and commercialization activities for tebipenem pivoxil in the GSK Territory. Additionally, the Company was responsible for providing and paying for the clinical supply of tebipenem pivoxil while GSK will be responsible for the costs of the commercial supply of tebipenem pivoxil. A joint development committee has been established between GSK and the Company to coordinate and review development activities for tebipenem pivoxil in the United States.

Unless earlier terminated due to certain material breaches of the GSK License Agreement or by GSK for convenience, or otherwise, the GSK License Agreement will expire on a jurisdiction-by-jurisdiction and GSK Licensed Product-by-GSK Licensed Product basis on the latest to occur of (i) loss of patent exclusivity, (ii) loss of regulatory exclusivity or (iii) ten years following the date of the first commercial sale of such licensed product in such country (the "GSK Royalty Term”). During the GSK Royalty Term, the Company has agreed not to develop, manufacture or commercialize any oral carbapenem for any indication or any oral antibiotic for cUTI; this restriction does not apply to any third party which acquires control of the Company after the date of the GSK License Agreement if certain conditions are met.

The Company has the right to terminate the GSK License Agreement upon a material breach by, or bankruptcy of, GSK. GSK has the right to terminate the GSK License Agreement at any time upon a specified number of days’ notice or upon a material breach by, or bankruptcy of, the Company. In addition, in the event that GSK has the right to terminate the GSK License Agreement due to a material breach by the Company, GSK may elect not to terminate the GSK License Agreement and in lieu thereof may assume the responsibility and expense of development of tebipenem pivoxil in the United States, in which event GSK’s obligation to make further

22


 

development payments to the Company would cease, and/or to reduce all subsequent commercial and sales milestone payments and royalty payments otherwise due by GSK to the Company under the GSK License Agreement by 50%. In the case of a Change of Control of the Company, GSK similarly may, in lieu of terminating the GSK License Agreement, assume responsibility and expense of development of tebipenem pivoxil in the United States and no development milestones would be payable to the Company, as described above.

The GSK License Agreement contains representations and warranties, other covenants, indemnification provisions and other terms and conditions customary for transactions of the type contemplated by the GSK License Agreement. In support of certain of its rights to indemnification, GSK also has certain rights to suspend payments otherwise owed to the Company, as well as the right to offset payments otherwise owed to the Company against certain indemnifiable claims.

Accounting Analysis and Revenue Recognition

The Company determined that GSK is a customer and that the GSK License Agreement is within the scope of ASC 606 as licensing intellectual property and performing ongoing research and development services are ordinary activities that are ongoing and central to the Company’s operations. Accordingly, in determining the appropriate amount of revenue to be recognized, the Company performed the following steps: (i) identified the promised goods or services in the contract; (ii) determined whether the promised goods or services are performance obligations including whether they are distinct in the context of the contract; (iii) measured the transaction price, including the constraint on variable consideration; (iv) allocated the transaction price to the identified performance obligations in proportion to their standalone selling prices ("SSP”); and (v) recognized revenue when each performance obligation was deemed to be satisfied.

Based on that evaluation, the Company identified two performance obligations, related to the license and to research and development services.

The Company developed the estimated SSP for the license using a discounted cash flow model. In developing this estimate, the Company applied significant judgment in the determination of the significant assumptions relating to forecasted future cash flows, the discount rate, and the probability of success. The SSP for the research and development services was estimated based on the Company’s estimate of costs to be incurred to fulfill its obligations associated with the performance of the research and development services, plus a reasonable margin.

At contract inception, the total transaction price was $64.7 million, which included the initial payment of $66.0 million in the fourth quarter of 2022 and the discount of $1.3 million related to the stock purchase agreement with Glaxo Group Limited, an affiliate of GSK. At contract inception, $45.7 million of the initial $64.7 million was allocated to the license transfer performance obligation, which was fully satisfied and recognized as revenue upon delivery of the license. The remaining $19.0 million was allocated to the research and development services obligation and is being recognized over time as services are delivered, estimated to be over a three-year period.

The Company recognized revenue for the license performance obligation at a point in time, that is upon transfer of the license to GSK. Control of the license was transferred on September 21, 2022 (the "GSK Effective Date”) and GSK could begin to use and benefit from the license at the GSK Effective Date.

The $30.0 million milestone payment received by the Company under the GSK License Agreement, was accounted for as variable consideration under ASC 606 and was added to the transaction price in the third quarter of 2023. Of this $30.0 million milestone, $21.2 million was recognized upon achievement of the milestone and the remaining $8.6 million was allocated to the research and development services performance obligation and will be recognized over time as the services are delivered, on a cumulative catch-up basis.

The Company was entitled to receive the $95.0 million milestone payment in four equal semiannual installments under the GSK License Agreement. This milestone was accounted for as variable consideration under ASC 606 and was added to the transaction price in the fourth quarter of 2023. The Company determined that a significant financing component of $2.5 million exists related to extended payment terms granted to GSK. The Company presents the effects of the financing component separately from collaboration revenue – related party as a component of interest income in its consolidated statement of operations. Of the $95.0 million milestone, $64.7 million was recognized upon achievement of the milestone in the fourth quarter of 2023, and the remaining amount after the $2.5 million significant financing component was allocated to the research and development services performance obligation and was recognized over time as the services were delivered, on a cumulative catch-up basis.

The Company received the first milestone installment payment of $23.8 million in the first quarter of 2024, the second milestone payment in the third quarter of 2024, the third milestone payment in the first quarter of 2025 and the Company received the final development milestone payment in the third quarter of 2025.

23


 

The potential future development milestone payments from the GSK License Agreement are accounted for as variable consideration under ASC 606. Given the uncertain nature of these payments, the Company determined they were fully constrained as of March 31, 2026 and not included in the transaction price. The Company can also earn sales-based royalties.

Pursuant to Amendment 2 to the GSK License Agreement, the Company allocated $3.2 million of the total potential additional milestones of $4.3 million to the research and development services obligation, as those development milestones were considered probable of achievement. These potential milestones were accounted for as variable consideration under ASC 606 and were added to the transaction price in the fourth quarter of 2023 and will be recognized over time as services are delivered. The fourth milestone payment of $1.1 million will not be achieved as the PIVOT-PO trial ended early for efficacy.

Pursuant to Amendment 4 to the GSK License Agreement, the Company allocated $0.8 million of the total potential additional milestones to the research and development services obligation, as those development milestones were considered probable of achievement. These potential milestones were accounted for as variable consideration under ASC 606 and were added to the transaction price in the fourth quarter of 2024 and were recognized over time as services were delivered.

In relation to the May 2025 announcement that the pivotal Phase 3 PIVOT-PO trial evaluating tebipenem pivoxil met its primary endpoint and has stopped early for efficacy, the Company updated the estimated costs to complete its performance obligations under the GSK License Agreement and updated the timeline for completion of performance obligations resulting in the recognition of additional revenue as a cumulative catch-up in the second quarter of 2025.

In December 2025, GSK resubmitted the NDA Class 2 resubmission for tebipenem pivoxil to the FDA, which triggered a milestone payment from GSK. The Company received the $25.0 million milestone payment in February 2026. The FDA approved GSK’s NDA resubmissions for Utebzi on June 17, 2026.

The Company did not recognize any revenue during the three months ended June 30, 2026, and recognized $0.3 million during the six months ended June 30, 2026, related to its performance obligations under the GSK License Agreement, which were recorded as collaboration revenue – related party on its consolidated statement of operations. As of June 30, 2026, the research and development services related to the performance obligations were fully recognized.

Meiji License Agreement

In June 2017, the Company entered into a license agreement with Meiji, whereby Meiji granted to the Company a license (the "Meiji License”) under certain patents, know-how and regulatory documentation to research, develop, manufacture and sell products containing the carbapenem chemical compound having the generic name, tebipenem pivoxil in the licensed territory. The license granted to the Company by Meiji includes certain know-how that Meiji received from a global pharmaceutical company. In exchange for the license, the Company paid Meiji an upfront, one-time, nonrefundable, non-creditable fee of $0.6 million, which was recognized as research and development expense. In October 2017, the Company paid a $1.0 million milestone payment to Meiji upon the enrollment of the first patient in the Company’s Phase 1 clinical trial of tebipenem pivoxil. The payment was recorded as research and development expense in the statement of operations and comprehensive loss for the year ended December 31, 2017. The Company paid Meiji approximately $1.6 million during the fourth quarter of 2018 related to fixed assets which will be used in manufacturing related activities at Meiji. This equipment has been capitalized as property and equipment in the consolidated balance sheets as of December 31, 2024. In October 2021, the Company paid a $1.0 million milestone payment to Meiji upon submission of an NDA to the FDA for tebipenem pivoxil. The Company was obligated to pay Meiji a low double-digit percentage of any sublicense fees received by the Company up to a maximum amount of $7.5 million, which the Company fully paid by the fourth quarter of 2023. The Company recorded these amounts as research and development expenses in the Company’s consolidated statement of operations.

The Company was obligated to make a milestone payment of $1.0 million upon receipt of NDA approval from the FDA for tebipenem pivoxil, and is obligated to pay royalties, on a product-by-product and country-by-country basis, of 1% of net sales of products licensed under the agreement. The NDA approval from the FDA for Utebzi was granted in June 2026, and the Company recognized the $1.0 million as research and development expenses in the Company’s consolidated statement of operations in the second quarter of 2026 and paid the $1.0 million milestone payment to Meiji in July 2026.

The agreement continues in effect until the expiration of all payment obligations thereunder (including royalty payments and licensee revenue) on a product-by-product and country-by-country basis, unless earlier terminated by the parties. Pursuant to the terms of the agreement, in addition to each party’s right to terminate the agreement upon the other party’s material breach (if not cured within a specified period after receipt of notice) or insolvency, the Company also has unilateral termination rights (i) in the event that the Company abandons the development and commercialization of Utebzi for efficacy, safety, legal or business reasons, and (ii) under certain circumstances arising out of the head license with a global pharmaceutical company. In July 2026, the Company assigned the Meiji License to the Company's affiliate in connection with the royalty financing transaction with affiliates of HCRx.

24


 

SPR720 Agreements

Vertex License Agreement

In May 2016, the Company entered into an agreement with Vertex Pharmaceuticals Incorporated ("Vertex”) (the "Vertex Assignment and License Agreement”) whereby Vertex granted the Company certain know-how and a sublicense to research, develop, manufacture and sell products for a proprietary compound, as well as a transfer of materials. In exchange for the know-how, sublicense and materials, the Company paid Vertex an upfront, one-time, non-refundable, non-creditable fee of $0.5 million, which was recognized as research and development expense. As part of the agreement, the Company is obligated to make future milestone payments of up to $80.2 million upon the achievement of specified clinical, regulatory and commercial milestones and to pay Vertex tiered royalties, on a product-by-product and country-by-country basis, of a mid-single-digit to low double-digit percentage based on net sales of products licensed under the agreement. During the three and six months ended June 30, 2026 and [2025], the Company did not record any research and development expense under this agreement, and the next milestone under this agreement is not accrued because it is not yet probable.

In November 2025, the Company announced that it ceased development of SPR720 and Vertex contemporaneously terminated the license granted under the Vertex Assignment and License Agreement.

Everest Medicines License Agreement

On January 4, 2019, the Company, through its wholly owned subsidiary New Pharma License Holdings Limited, entered into a license agreement (the "Original Everest License Agreement”), with Everest Medicines II Limited ("Everest”). Under the terms of the Original Everest License Agreement, the Company granted Everest an exclusive license to develop, manufacture and commercialize SPR206 or products that contain SPR206 (the "Everest Licensed Products”), in Greater China (which includes Mainland China, Hong Kong and Macau), South Korea and certain Southeast Asian countries (the "Everest Territory”). The Company retained development, manufacturing and commercialization rights with respect to SPR206 and Everest Licensed Products in the rest of the world and also retained the right to develop or manufacture SPR206 and Everest Licensed Products in the Everest Territory for use outside the Everest Territory. In addition to the license grant with respect to SPR206, the Company, through its wholly owned subsidiary, Spero Potentiator, Inc., a Delaware corporation, granted Everest a 12-month exclusive option to negotiate with it for an exclusive license to develop, manufacture and commercialize SPR741 in the Everest Territory.

Under the terms of the Original Everest License Agreement, the Company received an upfront payment of $3.0 million that was recognized in the first quarter of 2019, comprised of a $2.0 million payment to license SPR206 and $1.0 million for the exclusive option to negotiate a license to develop SPR741. The Company also received a milestone payment of $2.0 million in the fourth quarter of 2020 upon completion and delivery of the results of a clinical study.

On January 15, 2021, the Company entered into an amended and restated license agreement ("the Amended Everest License Agreement”) with Everest and Spero Potentiator, Inc., which amended and restated in its entirety the Original Everest License Agreement. The Amended Everest License Agreement modified the dates and values of certain milestone events related to development and commercialization of SPR206 to allow Everest to make more significant investments in the development of SPR206 beyond what was contemplated at the time of the Original Everest License Agreement. The Original Everest License Agreement provided that the Company could receive up to $59.5 million upon achievement of certain milestones. The Amended Everest License Agreement provides that the Company may receive up to $38.0 million upon achievement of certain milestones, of which $2.0 million has been received to date. In addition, under the Amended Everest License Agreement, the Company assigned patents in the Everest Territory to Everest, and the option related to SPR741 and the related provisions have been removed. Under the terms of the Amended Everest License Agreement, the Company is also entitled to receive high single-digit to low double-digit royalties on net sales, if any, of Everest Licensed Products in the Everest Territory following regulatory approval of SPR206. Everest has the right to sublicense to affiliates and third parties in the Everest Territory.

In March 2025, the Company notified Everest of its decision to cease development of SPR206. During both the three and six months ended June 30, 2026 and 2025, the Company did not recognize revenue under this agreement.

On August 11, 2026, the Company and Everest mutually agreed to terminate the Amended Everest License Agreement. As a result of the termination, no future milestones will be achieved under the Amended Everest License Agreement.

Pfizer License

On June 30, 2021, the Company and Pfizer Inc. ("Pfizer”) entered into a License Agreement (the "Pfizer License Agreement”) and a Share Purchase Agreement (the "Pfizer Purchase Agreement”). Under the terms of the Pfizer License Agreement, the Company granted Pfizer an exclusive royalty-bearing license to develop, manufacture and commercialize SPR206 or products that contain

25


 

SPR206 (the "Pfizer Licensed Products”) globally with some territorial exceptions (the "Pfizer Territory”). The Pfizer Territory excludes the United States and the Everest Territory.

On December 31, 2025, the Company mutually agreed with Pfizer to terminate the Pfizer License Agreement. Under the terms of the termination agreement, (i) in the event that a product is ever commercialized in the Pfizer Territory by the Company or any successor-in-interest to SPR206, such party will pay Pfizer royalties on the net sales in the Pfizer Territory at the rates set forth in the Pfizer License Agreement and (ii) the Company is liable to Pfizer for up to $5 million from any future sale, divestiture, license, transfer or partnering of SPR206.

Accounting Analysis and Revenue Recognition

The Company determined that Pfizer is a customer and that the Pfizer License Agreement is within the scope of ASC 606 as licensing intellectual property and performing ongoing research and development services are ordinary activities that are ongoing and central to the Company’s operations. Accordingly, in determining the appropriate amount of revenue to be recognized, the Company performed the following steps: (i) identified the promised goods or services in the contract; (ii) determined whether the promised goods or services are performance obligations including whether they are distinct in the context of the contract; (iii) measured the transaction price, including the constraint on variable consideration; (iv) allocated the transaction price to the identified performance obligations in proportion to their SSP; and (v) recognized revenue when each performance obligation was deemed to be satisfied.

Based on that evaluation, the Company identified two performance obligations, license and know-how transfer and research and development services related to upcoming milestones. The Company determined that the supply agreement is a customer option and not a material right, as the pricing to Pfizer is not at a significant discount. Furthermore, Pfizer has the right to use third parties to manufacture the compound, or to manufacture the compound itself.

At contract inception, $1.4 million of the then transaction price of $12.5 million was allocated to the license and know-how transfer performance obligations, which was fully satisfied and recognized as revenue upon delivery of the license. The additional $11.1 million was allocated to the research and development services obligation and was being recognized over time as services are delivered.

In the third quarter of 2022, upon the completion of a milestone related to regulatory engagement for SPR206, Pfizer communicated its approval that the milestone was achieved, and the Company received $5.0 million under the Pfizer License Agreement, which the Company accounted for as variable consideration under ASC 606 and was added to the transaction price in the third quarter of 2022. Of this $5.0 million milestone, $0.9 million was recognized during the third quarter of 2022 and the remaining $4.1 million was allocated to the research and development services performance obligation and is recognized over time as the services are delivered.

The potential license maintenance fees and development milestone payments from the Pfizer License Agreement were accounted for as variable consideration under ASC 606. Given the uncertain nature of these payments, the Company determined they were fully constrained as of June 30, 2026 and not included in the transaction price. The Company could also earn sales-based royalties.

The Company recognized revenue for the license performance obligation at a point in time, that is upon transfer of the license to Pfizer. Control of the license was transferred on the Effective Date and Pfizer could begin to use and benefit from the license at the Effective Date.

On December 31, 2025, the Company mutually agreed with Pfizer to terminate the Pfizer License Agreement. As a result of the termination of the Pfizer License Agreement, all rights and obligations of each party ceased. As no future performance research and development obligations existed as of the Pfizer License Agreement termination date, the remaining deferred revenue balance of $12.6 million was recognized as revenue in December 2025. The Company did not recognize any revenue under the Pfizer License Agreement for the three and six months ended June 30, 2026 and recognized less than $0.1 million of revenue for the three and six months ended June 30, 2025. Under the terms of the termination agreement, the Company is liable to Pfizer for up to $5 million from any future sale, divestiture, license, transfer or partnering of SPR206.

10.
Segment Information

 

The Company manages its operations as a single operating segment for the purpose of assessing performance and making operating decisions, resulting in a single reportable segment. The Company is focused on advancing next-generation medicines in immunology and inflammation for patients with serious diseases and major treatment gaps. The Company has earned revenue from collaboration agreements with third parties and grant revenue in connection with various government awards. The Company has determined that its Chief Operating Decision Maker ("CODM”) is its Chief Executive Officer. The CODM reviews the Company’s

26


 

financial information on a consolidated basis for the purpose of allocating resources and assessing financial performance. The measure of segment assets is reported on the balance sheet as total consolidated assets. All of the Company’s tangible assets are held in the United States.

 

The accounting policies for the operating segment are consistent with the Company’s policies for the consolidated financial statements. The key measure of segment profit or loss that the CODM uses to allocate resources and assess performance is the Company’s consolidated profit or loss, as reported on the consolidated statements of operations and comprehensive loss. This is reviewed against budgeted expectations to assess segment performance and allocate resources. The Company's reportable segment net revenues, significant segment expenses and consolidated loss for the three and six months ended June 30, 2026 and 2025, consisted of the following (in thousands):

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Revenues:

 

 

 

 

 

 

 

 

 

 

 

Grant revenue

$

 

 

$

2,387

 

 

$

 

 

$

3,150

 

Collaboration revenue - related party

 

 

 

 

11,802

 

 

 

258

 

 

 

16,901

 

Collaboration revenue

 

 

 

 

 

 

 

 

 

 

12

 

Total revenues

 

 

 

 

14,189

 

 

 

258

 

 

 

20,063

 

 

 

 

 

 

 

 

 

 

 

 

 

Less:

 

 

 

 

 

 

 

 

 

 

 

Tebipenem pivoxil

 

1,298

 

 

 

6,694

 

 

 

1,710

 

 

 

15,363

 

SPR720

 

 

 

 

349

 

 

 

 

 

 

797

 

SPR206

 

 

 

 

 

 

 

 

 

 

49

 

Research and development personnel related (including
   share-based compensation)

 

1,349

 

 

 

2,611

 

 

 

3,018

 

 

 

5,948

 

Facility related and other, research and development

 

787

 

 

 

1,018

 

 

 

1,615

 

 

 

2,121

 

General and administrative personnel related (including
   share-based compensation)

 

1,793

 

 

 

3,368

 

 

 

4,082

 

 

 

7,486

 

Professional and consultant fees

 

4,160

 

 

 

1,986

 

 

 

5,841

 

 

 

4,249

 

Facility related and other, general and administrative

 

539

 

 

 

524

 

 

 

1,456

 

 

 

967

 

Other segment items*

 

3

 

 

 

79

 

 

 

4

 

 

 

253

 

Interest income

 

(377

)

 

 

(740

)

 

 

(713

)

 

 

(1,604

)

Consolidated loss

$

(9,552

)

 

$

(1,700

)

 

$

(16,755

)

 

$

(15,566

)

 

*Other segment items include restructuring charges and other income, net.

11.
Net Loss per Share

 

Basic and diluted net loss per share attributable to common stockholders of the Company was calculated as follows (in thousands, except share and per share amounts):

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

Net loss attributable to common stockholders

 

$

(9,552

)

 

$

(1,700

)

 

$

(16,755

)

 

$

(15,566

)

 

 

 

 

 

 

 

 

 

 

 

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average common shares outstanding, basic and
   diluted

 

 

57,968,608

 

 

 

56,026,767

 

 

 

57,626,986

 

 

 

55,703,275

 

 

 

 

 

 

 

 

 

 

 

 

 

Net loss per share attributable to common stockholders, basic
   and diluted

 

$

(0.16

)

 

$

(0.03

)

 

$

(0.29

)

 

$

(0.28

)

 

The Company excluded the following potential shares of common stock, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect:

27


 

 

 

 

Three Months Ended June 30,

 

 

Six Months Ended June 30,

 

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

Options to purchase common stock

 

 

3,569,033

 

 

 

2,583,918

 

 

 

3,569,033

 

 

 

2,583,918

 

Unvested RSUs and PSUs

 

 

4,173,783

 

 

 

5,707,873

 

 

 

4,173,783

 

 

 

5,707,873

 

 

 

 

7,742,816

 

 

 

8,291,791

 

 

 

7,742,816

 

 

 

8,291,791

 

 

12.
Subsequent Events

Innovent License Agreement

On July 8, 2026, the Company entered into the Innovent Agreement, pursuant to which Innovent granted the Company an exclusive (even as to Innovent and its affiliates, subject to Innovent’s right to directly or indirectly conduct certain research, non-clinical development and manufacturing activities), sublicensable right and license under certain patent rights and know-how to research, develop, manufacture, and commercialize Innovent’s proprietary monoclonal antibody targeting CD40L, which is referred to as SP001, and certain backup monoclonal antibodies and derivative monoclonal antibodies, in each case targeting CD40L and products containing the Licensed Compounds worldwide, excluding the Innovent Territory. Innovent also granted the Company a non-exclusive, sublicensable license under the Licensed Intellectual Property to research, non-clinically develop and manufacture the Licensed Compounds and Licensed Products in the Innovent Territory in connection with the Company’s exploitation of the Licensed Compounds and Licensed Products worldwide, excluding the Innovent Territory (the territory excluding the Innovent Territory, the "Licensed Territory”).

Under the Innovent Agreement, the Company granted Innovent an exclusive (even as to the Company and its affiliates, subject to the Company’s right to directly or indirectly conduct certain research, non-clinical development and manufacturing activities), sublicensable right and license under certain patent rights and know-how (the "Company Intellectual Property”) to develop, manufacture, and commercialize the Licensed Compounds and Licensed Products in the Innovent Territory. The Company also granted Innovent a non-exclusive, sublicensable license under the Company Intellectual Property to research, non-clinically develop and manufacture the Licensed Compounds and Licensed Products in the Innovent Territory.

Each party has agreed that, for five years from the date of the Innovent Agreement, it will not, directly or indirectly, alone or with or for any other person or entity, clinically develop or commercialize any monoclonal antibody, bispecific antibody, or multispecific antibody targeting CD40L in the Licensed Territory. If, within three years from the date of the Innovent Agreement, Innovent or any of its affiliates initiates development of a bispecific or multispecific antibody targeting CD40L, in specified circumstances the Company has an option to include that antibody as a Licensed Compound under the Innovent Agreement subject to certain financial terms. If the Company declines to exercise that option, then Innovent is free to clinically develop and commercialize that antibody in the Licensed Territory.

The Company has agreed to use commercially reasonable efforts to develop, obtain regulatory approval for, and commercialize a Licensed Product in at least one indication in the United States and any one of France, Germany, Italy, Spain, the United Kingdom or Japan. The Company has agreed to file an IND application for a Licensed Product in the United States within 12 months from the date of the Innovent Agreement, subject to extensions for specified justifiable delays.

Under the terms of the Innovent Agreement, the Company is obligated to pay to Innovent a $35.0 million upfront payment, as well as aggregate milestone payments of up to approximately $1.05 billion upon the achievement of certain development, regulatory and commercial milestones.

The Company is also obligated to pay Innovent tiered royalties ranging from a high single-digit percentage to a mid-teen-digit percentage on annual net sales of all Licensed Products. The Company is obligated to pay royalties on a Licensed Product-by-Licensed Product and country-by-country basis until the latest of: (i) the expiration of the last valid claim of the licensed patents covering the composition of matter of the Licensed Compound contained in such Licensed Product in such country; (ii) the expiration of the last applicable regulatory exclusivity right with respect to such Licensed Product in such country; and (iii) 11 years following the first commercial sale of such Licensed Product in such country (each, a "Royalty Term”). The royalty rate is subject to specified reductions on a Licensed Product-by-Licensed Product and country-by-country basis under specified circumstances.

The Innovent Agreement contemplates that the Company will enter into ancillary arrangements with Innovent, including a clinical supply agreement and a pharmacovigilance agreement. The Company has also granted Innovent a right of first negotiation to be a secondary manufacturer of the Licensed Compounds and Licensed Products for commercialization in the Licensed Territory.

28


 

Unless earlier terminated, the Innovent Agreement will expire on the expiration of the last to expire Royalty Term. Unless the Innovent Agreement is earlier terminated, on expiration of each applicable Royalty Term, the Company will have a fully paid-up, irrevocable and perpetual license under the Licensed Intellectual Property to develop, manufacture and commercialize each applicable Licensed Product in the applicable country, which license will become non-exclusive after a specified point in time. Either party may terminate the Innovent Agreement for the other party’s uncured material breach, following a customary notice and cure period, or insolvency. Innovent may terminate the Innovent Agreement if the Company challenges the scope, validity, or enforceability of the licensed patents. The Company may terminate the Innovent Agreement for any reason upon 90 days’ written notice to Innovent prior to the first commercial sale of a Licensed Product, or upon 150 days’ written notice to Innovent after the first commercial sale of a Licensed Product. Additionally, if the Company has the right to terminate the Innovent Agreement for certain uncured material breaches by Innovent, the Company may, in lieu of termination, elect to keep the Innovent Agreement in force and reduce the Company’s subsequent payment obligations. Upon a termination of the Innovent Agreement prior to expiration of an applicable Royalty Term, the Company’s licenses from Innovent will terminate and Innovent will have the right to obtain a license under the Company Intellectual Property, with a right to sublicense, with respect to specified terminated products, which license will be either non-exclusive and fully paid-up or exclusive and subject to milestone and royalty obligations, at Innovent’s election.

Royalty Financing Transaction

On July 8, 2026 (the "Closing Date”), the Company, Spero Holdings SPV, LLC, a Delaware limited liability company and wholly owned subsidiary of the Company ("Holdings”), and Spero SPV, LLC, a Delaware limited liability company and wholly owned subsidiary of Holdings ("Issuer”), entered into the following agreements with affiliates of HCRx: (i) a non-recourse Note Purchase and Guaranty Agreement (the "NPA”), by and among Holdings, Issuer, the purchasers party thereto (the "NPA Purchasers”) and HCR Spero SPV, LLC, as the purchaser representative for such NPA Purchasers (the "NPA Purchaser Representative”), (ii) a Royalty and Milestone Payment Interest Purchase and Sale Agreement (the "RPA”), by and among Issuer, the purchasers party thereto (the "RPA Purchasers”), and HCR Spero SPV, LLC, as the purchaser representative for such RPA Purchasers (the "RPA Purchaser Representative”) and (iii) a Limited Recourse Guaranty (the "Limited Guaranty”), by the Company in favor of the NPA Purchaser Representative and RPA Purchaser Representative.

Under the terms of the NPA, Issuer sold to the NPA Purchasers, senior secured notes in an aggregate principal amount of $105,000,000 (the "Notes”), which Notes (i) were issued net of an original issue discount in the amount of $3,150,000, which, after giving effect to the RPA Purchase Price referenced below, reduces the aggregate $105,000,000 in gross proceeds of the NPA and RPA by 1.5%, (ii) accrue interest at 10% per annum, which interest, to the extent not paid in cash from available GSK Proceeds (as defined below) in accordance with the terms of the NPA, is capitalized and added to the principal amount of the Notes on a quarterly basis and (iii) mature nine years after the Closing Date. The Notes are secured by substantially all of Holdings’ and Issuer’s assets (collectively, the "Collateral”), which includes the equity interest of Issuer held by Holdings and rights to a portion of the future GSK Proceeds arising under the GSK Agreement, but excludes intellectual property as to which the grant of security interests is restricted. The Notes and other obligations under the NPA are generally payable solely from the GSK Proceeds, unless voluntarily prepaid at the option of Issuer prior to maturity with a premium or subject to certain mandatory prepayment triggers and foreclosure rights.

Under the terms of the RPA, Issuer sold to the RPA Purchasers 65% of the GSK Proceeds arising after the payment in full of the Notes (the "Purchased Proceeds”) in exchange for a cash payment of $1,575,000 (the "RPA Purchase Price”). Issuer’s obligations under the RPA are secured by a customary back-up lien in the Purchased Proceeds and proceeds thereof. The Company retains an interest in 35% of the GSK Proceeds arising after payment in full of the Notes.

In connection with the NPA and RPA, the Company will provide certain servicing, management and administrative functions on behalf of Holdings and Issuer.

Each of the NPA, RPA and Limited Guaranty contain certain customary terms and conditions, including representations and warranties, indemnities, affirmative and negative covenants, and events of default. Upon the occurrence and during the continuance of an event of default under the NPA, the NPA Purchaser Representative may declare the Notes and other obligations under the NPA to be immediately due and payable, and if such Notes and other obligations are not repaid, foreclose on the Collateral and use the proceeds thereof to repay the Notes, and, in limited circumstances, seek payment from the Company pursuant to the Limited Guaranty. The obligations of the Company in respect of the Limited Guaranty in circumstances where the Company is liable are, except in very limited circumstances, subject to a cap and limited to contract breaches, defaults and other liabilities customary for similarly structured royalty financing transactions.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following discussion and analysis of our financial condition and results of operations together with the unaudited financial information and the notes thereto appearing elsewhere in this Quarterly Report on Form 10-Q, and the audited financial information and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2025. Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report on Form 10-Q, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. As a result of many factors, including those factors set forth in the "Risk Factors” in Part II, Item 1A of this Quarterly Report on Form 10-Q, our actual results could differ materially from the results described in, or implied by, the forward-looking statements contained in the following discussion and analysis.

Overview

 

We are a clinical-stage biopharmaceutical company advancing next generation medicines for patients with immune-mediated diseases.

 

Our lead program, SP001, is a third-generation, fully humanized, Fc-silent IgG1 monoclonal antibody targeting CD40L. On July 8, 2026, we entered into the Innovent Agreement with Innovent, pursuant to which Innovent granted the Company an exclusive (even as to Innovent and its affiliates, subject to Innovent’s right to directly or indirectly conduct certain research, non-clinical development and manufacturing activities), sublicensable right and license under certain Licensed Intellectual Property to research, develop, manufacture, and commercialize SP001, and the Licensed Compounds and Licensed Products worldwide, excluding the Innovent Territory (see Note 12, Subsequent Events).

 

SP001 targets CD40L, an immune signal protein that sits upstream of multiple immune pathways and has the potential to be developed across a range of immune-mediated diseases. We are developingSP001 for the treatment of patients with Immunoglobulin G4 related disease, or IgG4-RD. IgG4-RD is a rare disease with an estimated 20,000 to 40,000 diagnosed patients in the United States. Patients with IgG4-RD suffer from serious, chronic fibro-inflammation that can affect multiple organs, including the pancreas, salivary glands, lacrimal glands, kidneys, lungs, lymph nodes, and other tissues. Left untreated or under-treated IgG4-RD patients may progress to organ failure.

 

In September 2022, we entered into an exclusive licensing agreement with GSK for Utebzi (tebipenem pivoxil), which included transfer of the IND application and NDA ownership to GSK. We initially developed Utebzi as tebipenem HBr. In May 2025, we and GSK announced that the pivotal Phase 3 PIVOT-PO trial evaluating Utebzi met its primary endpoint and was stopped early for efficacy. GSK submitted the data from the trial as part of an NDA Class 2 resubmission to the FDA in December 2025. On June 17, 2026, we and GSK announced that the FDA approved Utebzi, an oral antibiotic for the treatment of complicated urinary tract infections (cUTIs) including pyelonephritis, caused by certain susceptible pathogens in adult patients who have limited or no alternative oral treatment options.

We have experienced mostly net losses and significant cash outflows from cash used in operating activities since our inception. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development of SP001 and any other product candidate we may develop in the future, as well as GSK’s commercialization of Utebzi. As of June 30, 2026, we had an accumulated deficit of $467.8 million, and cash and cash equivalents of $50.8 million. We expect to continue to incur significant expenses and operating losses for the foreseeable future. Based on our current operating plan, we believe that our cash and cash equivalents as of June 30, 2026, together with and including the net proceeds from the royalty financing transaction that closed in July 2026, offset by the upfront payment the Company is obligated to pay to Innovent in connection with the Innovent Agreement, will be sufficient to fund our operating expenses and capital expenditure requirements into the second half of 2029. During this period, we are focused on advancing next-generation medicines in immunology and inflammation for patients with serious diseases and major treatment gaps. Beyond this point, or in the event we change our current operating plan, we will need additional funding to support our continuing operations. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of equity offerings, debt financings, government funding arrangements, collaborations, strategic alliances and marketing, distribution or licensing arrangements. If we are not able to secure adequate additional funding, we will have to make further reductions in spending. In that event, we may have to delay, scale back, or eliminate some or all of our planned development activities. The actions necessary to reduce spending under this plan at a level that mitigates the factors described above are not considered probable, as defined in the accounting standards and therefore, the full extent to which management may extend our funds through these actions may not be considered in management’s assessment of our ability to continue as a going concern.

We will not generate revenue from product sales on SP001 or any future product candidates unless and until we successfully complete clinical development and obtain regulatory approval for any such product candidate. If we obtain regulatory approval for any such product candidate and do not enter into a commercialization partnership, we expect to incur significant expenses related to

30


 

developing our internal commercialization capability to support product sales, marketing and distribution. Further, we expect to incur additional costs associated with our continued operation as a public company.

Because of the numerous risks and uncertainties associated with pharmaceutical product development, we are unable to accurately predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.

Recent Developments

SP001

On July 8, 2026, we entered into the Innovent Agreement to in-license SP001, a third-generation, fully humanized, Fc-silent IgG1 monoclonal antibody targeting CD40L, an upstream immune activation signal involved in T-cell, B-cell, antigen-presenting cell, and platelet biology. SP001 is designed to address platelet activation concerns associated with earlier anti-CD40L antibodies, while preserving key monoclonal antibody properties, including FcRn interaction that supports IgG-like half-life. We received exclusive rights to research, develop, manufacture, and commercialize SP001 worldwide, excluding the Innovent Territory, where Innovent retains rights.

Innovent has evaluated this antibody in two healthy volunteer Phase 1 trials: a SAD study and a MAD study. It has also evaluated SP001 in a Phase 1b MAD study in patients with SjD. Data from the Phase 1b SjD study were presented in a poster session at the EULAR 2026 Congress.

Subject to FDA clearance of the U.S. IND, we currently expect to advance SP001 into a Phase 2 trial in IgG4-RD patients in the second quarter of 2027. IgG4-related disease is a serious, rare chronic fibroinflammatory condition that can affect multiple organs, including the pancreas, salivary glands, lacrimal glands, kidneys, lungs, lymph nodes, and other tissues. The disease can cause immune-mediated inflammation, fibrosis, organ damage, relapse risk, and significant treatment burden.

Tebipenem Pivoxil

On June 17, 2026, the FDA approved Utebzi (tebipenem pivoxil), an oral antibiotic for the treatment of cUTIs including pyelonephritis caused by certain susceptible pathogens in adult patients who have limited or no alternative oral treatment options.

In May 2025, we and GSK announced that the pivotal Phase 3 PIVOT-PO trial evaluating tebipenem pivoxil, an investigational oral treatment for cUTIs, including pyelonephritis, caused by certain microorganisms, met its primary endpoint and the trial was stopped early for efficacy. The decision followed a recommendation from an Independent Data Monitoring Committee ("IDMC”) that completed a pre-specified interim analysis of data from 1,690 patients enrolled in the trial.

Following the review of the interim analysis data by the IDMC, it was determined that the Phase 3 PIVOT-PO trial met the primary endpoint of non-inferiority of tebipenem pivoxil compared to intravenous imipenem-cilastatin in hospitalized adult patients with cUTI, including pyelonephritis, on overall response (composite of clinical cure plus microbiological eradication) at the test-of-cure visit. The IDMC review did not identify any new safety concerns beyond what has been reported in other studies with tebipenem pivoxil, with diarrhea and headache as the two most reported adverse events. In December 2025, GSK resubmitted the NDA for tebipenem pivoxil to the FDA. In accordance with the terms of the GSK License Agreement, we became entitled to receive a $25.0 million milestone payment upon the filing of the NDA with the FDA, which we received in February 2026.

Remaining potential payments under the GSK License Agreement, which include milestones and royalties based on commercial launch and achievement of pre-specified sales thresholds, are as follows (in millions):

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Contingent Event

Milestone Payment

Total potential commercial milestones based on first commercial sales

$101.0*

 

          First commercial sale of a product in the United States

 -

$51.0

          Second anniversary of first commercial sale of a product in the United States

 -

$25.0

          First commercial sale of a product in two European countries

 -

$25.0

Total potential sales milestone payments

$225.0

 

          Net annual sales greater than $200.0

 -

$25.0

          Net annual sales greater than $300.0

 -

$25.0

          Net annual sales greater than $400.0

 -

$25.0

          Net annual sales greater than $500.0

 -

$50.0

          Net annual sales greater than $750.0

 -

$50.0

          Net annual sales greater than $1,000.0

 -

$50.0

 

*Under the terms of the GSK License Agreement, the maximum potential milestone amount was revised from $150.0 million after PIVOT-PO was stopped early for efficacy following completion of a pre-specified interim analysis of data from 1,690 patients enrolled in the trial, thereby reducing the overall cost of the trial to us; the maximum potential milestone payment of $150.0 million was contingent upon the trial continuing to full enrollment, with 2,637 patients enrolled in the trial.

In addition to the milestones described above, GSK is obligated to pay royalties to us on annual net sales of GSK Licensed Products in the GSK Territory. Such royalties are 1% for annual sales up to $750.0 million each year and range from high single-digit percentages on annual net sales above $750.0 million each year to low double-digit percentages on annual net sales above $1,000.0 million each year.

Royalty Financing Transaction

On July 8, 2026, we and our affiliates entered into a $105.0 million non-recourse non-dilutive royalty financing transaction with affiliates of HCRx, pursuant to which HCRx will receive a portion of the future GSK Proceeds. Pursuant to the transaction, the parties entered into, among other documents, the NPA for the Notes, the RPA and the Limited Guaranty. Under the terms of the NPA, the Notes and other obligations under the NPA are generally payable solely from GSK Proceeds, unless voluntarily prepaid at our option prior to maturity with a premium or subject to certain mandatory prepayment triggers and foreclosure rights. Under the terms of the RPA, we sold 65% of the GSK Proceeds arising after the payment in full of the Notes while we retain an interest of 35% of the GSK Proceeds arising after payment in full of the Notes. Pursuant to the Limited Guaranty, we guarantee, subject to certain limitations set forth therein, the obligations of our affiliates under the NPA and RPA. In connection with the NPA and RPA, we will provide certain servicing, management and administrative functions on behalf of its affiliates (see Note 12, Subsequent Events, in the condensed consolidated financial statements).

Components of Our Results of Operations

Sales Revenue

To date, we have not generated any revenue from product sales. If our development efforts for any of our current or future product candidates are successful and result in regulatory approval, we may generate revenue in the future from product sales. We cannot predict if, when, or to what extent we will generate revenue from the commercialization and sale of any of our current or future product candidates. We may never succeed in obtaining regulatory approval for any existing or future product candidates.

Grant Revenue

A portion of our revenue may be derived from payments under any government awards that we may receive in the future.

Collaboration Revenue

Collaboration revenue relates to our agreements with Pfizer and GSK.

32


 

Operating Expenses

Research and Development Expenses

Research and development expenses consist primarily of costs incurred for our research activities and the development of any of our current or future product candidates, which include:

employee-related expenses, including salaries, related benefits, travel and share-based compensation expense for employees engaged in research and development functions;
expenses incurred in connection with the preclinical and clinical development of any of our current and future product candidates, including under agreements with contract research organizations ("CROs”);
the cost of consultants and contract manufacturing organizations ("CMOs”) that manufacture drug products for use in our preclinical studies and clinical trials;
facilities, depreciation and other expenses, which include direct and allocated expenses for rent and maintenance of facilities, insurance and supplies; and
payments made under third-party licensing agreements.

We expense research and development costs as incurred. Nonrefundable advance payments we make for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the related goods are delivered or the services are performed.

Our direct research and development expenses are tracked on a program-by-program basis and consist primarily of external costs, such as fees paid to consultants, contractors, CMOs and CROs in connection with our preclinical and clinical development activities. License fees and other costs incurred after a product candidate has been designated and that are directly related to the product candidate are included in direct research and development expenses for that program. License fees and other costs incurred prior to designating a product candidate are included in early-stage research programs. We do not allocate employee costs, costs associated with our preclinical programs or facility expenses, including depreciation or other indirect costs, to specific product development programs because these costs are deployed across multiple product development programs and, as such, are not separately classified.

Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials.

At this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the preclinical and clinical development of any existing or future product candidates. The successful development and commercialization of any of our current and future product candidates is highly uncertain. This is due to the numerous risks and uncertainties, including the following:

successful completion of clinical trials with safety, tolerability and efficacy profiles that are satisfactory to the FDA or any comparable foreign regulatory authority, including on account of the disruptive impacts of any global health, economic or political crises;
receipt of marketing approvals from applicable regulatory authorities;
establishment of arrangements with third-party manufacturers to obtain manufacturing supply;
obtainment and maintenance of patent, trade secret protection and regulatory exclusivity, both in the United States and internationally for our current and future product candidates;
protection of our rights in our intellectual property portfolio;
launch of commercial sales of any of our current or future product candidates, if approved, whether alone or in collaboration with others;
acceptance of any of our current and future product candidates, if approved, by patients, the medical community and third-party payors;
competition with other therapies; and
a continued acceptable safety profile of any of our current our future product candidates, if approved.

33


 

A change in the outcome of any of these variables with respect to the development of any of our current or future product candidates would significantly change the costs and timing associated with the development of that product candidate. We may never succeed in obtaining regulatory approval for any of our current or future product candidates.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and related costs, including share-based compensation, for personnel in executive, finance and administrative functions. General and administrative expenses also include direct and allocated facility-related costs as well as professional fees for legal, patent, consulting, investor and public relations, accounting and audit services. We anticipate that we will continue to incur accounting, audit, legal, regulatory, compliance, infrastructure and director and officer insurance costs, as well as investor and public relations expenses associated with our continued operation as a public company.

Other Income (Expense)

Interest Income (Expense)

Interest income (expense) consists of interest income related to the significant financing component related to the GSK License Agreement, from the first quarter of 2024 through the third quarter of 2025, and interest earned on our cash equivalents, which are primarily invested in money market accounts, as well as interest earned on our investments in marketable securities.

Other Income (Expense), Net

Other income (expense), net, consists of insignificant amounts of miscellaneous income, as well as realized and unrealized gains and losses from foreign currency-denominated cash balances and vendor payables.

Income Taxes

We have not recorded any income tax benefits for the net losses we have incurred in each year or for our earned research and development tax credits, as we believe, based upon the weight of available evidence, that it is more likely than not that all of our net operating loss carryforwards and tax credits will not be realized. As of December 31, 2025, we had United States federal, state and foreign net operating loss carryforwards ("NOLs") of $226.1 million, $184.8 million and $4.7 million, respectively. $212.8 million of the federal NOLs can be carried forward indefinitely and $13.2 million of NOLs begin to expire in 2034. The state NOLs begin to expire in 2035 and will expire at various dates through 2045. The foreign NOLs do not expire. As of December 31, 2025, we also had federal and state research and development tax credit carryforwards of $6.7 million and $1.7 million, respectively, and federal orphan drug tax credit carryforwards of $3.1 million, which may be available to offset future income tax liabilities. The federal and state research and development tax credits begin to expire in 2035 and the federal orphan drug credits begin to expire in 2044. We have recorded a full valuation allowance against our net deferred tax assets at each balance sheet date.

Critical Accounting Policies and Significant Judgments and Estimates

Our consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States ("GAAP”). The preparation of our consolidated financial statements and related disclosures requires us to make estimates, assumptions and judgments that affect the reported amount of assets, liabilities, revenue, costs and expenses, and related disclosures. We base our estimates on historical experience, known trends and events and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates under different assumptions or conditions.

We believe that the following accounting policies are those most critical to the judgments and estimates used in the preparation of our financial statements.

Funding Received from Collaborations

Since our inception, we were able to obtain partial funding for our research and development activities from collaboration arrangements. The classification within our statement of operations and comprehensive loss of the funding received under these arrangements was subject to management judgment based on the nature of the arrangements we enter into, the source of the funding and whether the funding is considered central to our business operations.

Collaboration Agreements

34


 

For collaboration agreements with a third party, to determine the appropriate statement of operations classification of the recognized funding, we first assess whether the collaboration arrangement is within the scope of the accounting guidance for collaboration arrangements. If it is, we evaluate the collaborative arrangement for proper classification in the statement of operations based on the nature of the underlying activity and we assess the payments to and from the collaborative partner. If the payments to and from the collaborative partner are not within the scope of other authoritative accounting guidance, we base the statement of operations classification for the payments received on a reasonable, rational analogy to authoritative accounting guidance, applied in a consistent manner. Conversely, if the collaboration arrangement is not within the scope of accounting guidance for collaboration arrangements, we assess whether the collaboration arrangement represents a vendor/customer relationship. If the collaborative arrangement does not represent a vendor/customer relationship, we then classify the funding payments received in the statement of operations and comprehensive loss as a reduction of the related expense that is incurred.

Revenue Recognition - GSK License Agreement

In determining the accounting treatment for the GSK License Agreement, we developed assumptions to determine the stand-alone selling price for each performance obligation in the contract. We developed the estimated standalone selling price for the license using a discounted cash flow model. To develop this model, we applied significant judgment in the determination of the significant assumptions relating to forecasted future revenues, development timelines, the discount rate, and probabilities of technical and regulatory success. We developed the estimated standalone selling price for the research and development services using a discounted cash flow model. The assumptions to develop the estimated standalone selling price for the related research and development services include estimates of costs to be incurred to fulfill its obligations associated with the performance of the research and development services, plus a reasonable margin.

When an arrangement contains payment terms that are extended beyond one year, a significant financing component may exist. We assessed our revenue-generating arrangements in order to determine whether a significant financing component exists and concluded that a significant financing component does exist in certain arrangements. The significant financing component is calculated as the difference between the stated value and present value of the milestones payable and is recognized as interest income over the extended payment period. Judgment is used in determining: (1) whether the financing component in a license agreement is significant and, if so, (2) the discount rate used in calculating the significant financing component.

Accrued Research and Development Expenses

As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued research and development expenses. This process involves reviewing open contracts and purchase orders, communicating with our applicable personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actual costs. The majority of our service providers invoice us in arrears for services performed, on a pre-determined schedule or when contractual milestones are met; however, some require advance payments. We make estimates of our accrued expenses as of each balance sheet date in the consolidated financial statements based on facts and circumstances known to us at that time. We periodically confirm the accuracy of the estimates with the service providers and make adjustments if necessary. Examples of estimated accrued research and development expenses include fees paid to:

vendors in connection with the preclinical development activities;
CMOs in connection with the production of preclinical study and clinical trial materials;
CROs in connection with preclinical studies and clinical trials; and
investigative sites in connection with clinical trials.

We base our expenses related to preclinical studies and clinical trials on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple research institutions and CROs that conduct and manage preclinical studies and clinical trials on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the expense. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the accrual or prepaid expense accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.

Share-Based Compensation

35


 

We issue share-based awards to employees and directors in the form of stock options and restricted stock units. We measure and recognize compensation expense for our share-based awards granted to our employees and directors based on the estimated grant date fair value in accordance with Financial Accounting Standards Board ("FASB”) Accounting Standards Codification Topic 718 ("ASC 718”), Compensation—Stock Compensation. We determine the fair value of restricted stock units based on the fair value of our common stock. We measure all share-based options granted to employees and directors based on the fair value on the date of grant using the Black-Scholes option-pricing model, and we recognize compensation expense of those awards over the requisite service period, which is generally the vesting period of the respective award. Generally, we issue awards with only service-based vesting conditions and record the expense for these awards using the straight-line method. The Black-Scholes option-pricing model uses as inputs the fair value of our common stock and assumptions we make for the volatility of our common stock, the expected term of our common stock options and performance-based awards, the risk-free interest rate for a period that approximates the expected term of our common stock options and performance-based awards, and our expected dividend yield. We have also granted certain awards with performance-based criteria.

Results of Operations

Comparison of the Three Months Ended June 30, 2026 and 2025

The following table summarizes our results of operations for the three months ended June 30, 2026 and 2025 (in thousands):

 

 

 

Three Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

Revenues:

 

 

 

Grant revenue

 

$

 

 

$

2,387

 

 

$

(2,387

)

Collaboration revenue - related party

 

 

 

 

 

11,802

 

 

 

(11,802

)

Total revenues

 

 

 

 

 

14,189

 

 

 

(14,189

)

 

 

 

 

 

 

 

 

 

Operating expenses:

 

 

 

 

 

 

 

 

 

Research and development

 

 

3,434

 

 

 

10,672

 

 

 

(7,238

)

General and administrative

 

 

6,492

 

 

 

5,878

 

 

 

614

 

Restructuring

 

 

 

 

 

83

 

 

 

(83

)

Total operating expenses

 

 

9,926

 

 

 

16,633

 

 

 

(6,707

)

Loss from operations

 

 

(9,926

)

 

 

(2,444

)

 

 

(7,482

)

Other income (expense):

 

 

 

 

 

 

 

 

 

Interest income

 

 

377

 

 

 

740

 

 

 

(363

)

Other income (expense), net

 

 

(3

)

 

 

4

 

 

 

(7

)

Total other income, net

 

 

374

 

 

 

744

 

 

 

(370

)

Net loss

 

$

(9,552

)

 

$

(1,700

)

 

$

(7,852

)

 

Grant Revenue (in thousands):

 

 

 

Three Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

BARDA Contract (tebipenem pivoxil)

 

$

 

 

$

2,387

 

 

$

(2,387

)

Total grant revenue

 

$

 

 

$

2,387

 

 

$

(2,387

)

 

No grant revenue was recognized during the three months ended June 30, 2026. Grant revenue recognized during the three months ended March 31, 2025 consisted of the reimbursement of qualifying expenses incurred in connection with our BARDA contract. The decrease in grant revenue during the three months ended June 30, 2026 was primarily due to a decrease of $2.4 million of committed funds remaining available under our BARDA contract for tebipenem pivoxil. On July 6, 2026, we and BARDA mutually agreed to terminate the contract between us, and BARDA deobligated all remaining funds under the contract. We will not receive any additional funding from BARDA under this contract.

Collaboration Revenue (in thousands):

 

 

 

Three Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

GSK (tebipenem pivoxil)

 

$

 

 

$

11,802

 

 

$

(11,802

)

Total collaboration revenue

 

$

 

 

$

11,802

 

 

$

(11,802

)

 

36


 

 

No collaboration revenue was recognized during the three months ended June 30, 2026. During the three months ended June 30, 2025, we recognized $11.8 million in collaboration revenue related to our agreement with GSK. The decrease in collaboration revenue during the three months ended June 30, 2026 was primarily related to the achievement of remaining development milestone activities under the agreement.

Research and Development Expenses (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

Direct research and development expenses by program:

 

 

 

 

 

 

 

 

 

Tebipenem pivoxil

 

$

1,298

 

 

$

6,694

 

 

$

(5,396

)

SPR720

 

 

 

 

 

349

 

 

 

(349

)

Unallocated expenses:

 

 

 

 

 

 

 

 

 

Personnel related (including share-based compensation)

 

 

1,349

 

 

 

2,611

 

 

 

(1,262

)

Facility related and other

 

 

787

 

 

 

1,018

 

 

 

(231

)

Total research and development expenses

 

$

3,434

 

 

$

10,672

 

 

$

(7,238

)

 

Direct costs related to our tebipenem pivoxil program decreased by $5.4 million during the three months ended June 30, 2026, compared to the three months ended June 30, 2025, due to decreased clinical activities related to our pivotal Phase 3 clinical trial of tebipenem pivoxil, which was stopped early for efficacy during the first half of 2025 and later approved by the FDA in June 2026.

Direct costs related to our SPR720 program decreased by $0.3 million during the three months ended June 30, 2026, as compared to the three months ended June 30, 2025, due to the cessation of development and subsequent termination of the SPR720 program, which was announced in November 2025.

The decrease in personnel-related costs of $1.3 million was primarily a result of decreased headcount costs in our research and development functions between the periods. Personnel-related costs for the three months ended June 30, 2026 and 2025 included share-based compensation expense of $0.3 million and $0.4 million, respectively.

Facility-related and other costs primarily reflect costs related to supporting our research and development staff.

General and Administrative Expenses (in thousands):

 

 

 

Three Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

Personnel related (including share-based compensation)

 

$

1,793

 

 

$

3,368

 

 

$

(1,575

)

Professional and consultant fees

 

 

4,160

 

 

 

1,986

 

 

 

2,174

 

Facility related and other

 

 

539

 

 

 

524

 

 

 

15

 

Total general and administrative expenses

 

$

6,492

 

 

$

5,878

 

 

$

614

 

 

The decrease in personnel-related costs of $1.6 million was primarily a result of decreased headcount costs in our general and administrative functions between periods. Personnel-related costs for the three months ended June 30, 2026 and 2025 included stock-based compensation expense of $0.5 million and $0.3 million, respectively.

The increase in professional and consultant fees of $2.2 million was primarily due to an increase in business development, legal and consulting expenses incurred in the three months ended June 30, 2026.

Facility-related and other costs primarily reflect costs related to supporting our general and administrative staff.

Other Income (Expense), Net

Other income (expense), net was $0.4 million for the three months ended June 30, 2026, compared to $0.7 million for the three months ended June 30, 2025. Total other income for the three months ended June 30, 2026, included $0.4 million of interest income, offset by immaterial fluctuations in unrealized foreign currency. Total other income for the three months ended June 30, 2025, included $0.7 million of interest income, of which $0.4 million related to the significant financing component recognized under the GSK License Agreement, offset by immaterial fluctuations in unrealized foreign currency.

37


 

Comparison of the Six Months Ended June 30, 2026 and 2025

The following table summarizes our results of operations for the six months ended June 30, 2026 and 2025 (in thousands):

 

 

 

Six Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

Revenues:

 

 

 

Grant revenue

 

$

 

 

$

3,150

 

 

$

(3,150

)

Collaboration revenue - related party

 

 

258

 

 

 

16,901

 

 

 

(16,643

)

Collaboration revenue

 

 

 

 

 

12

 

 

 

(12

)

Total revenues

 

 

258

 

 

 

20,063

 

 

 

(19,805

)

 

 

 

 

 

 

 

 

 

 

Operating expenses:

 

 

 

 

 

 

 

 

 

Research and development

 

 

6,343

 

 

 

24,278

 

 

 

(17,935

)

General and administrative

 

 

11,379

 

 

 

12,702

 

 

 

(1,323

)

Restructuring

 

 

 

 

 

258

 

 

 

(258

)

Total operating expenses

 

 

17,722

 

 

 

37,238

 

 

 

(19,516

)

Loss from operations

 

 

(17,464

)

 

 

(17,175

)

 

 

(289

)

Other income (expense):

 

 

 

 

 

 

 

 

 

Interest income

 

 

713

 

 

 

1,604

 

 

 

(891

)

Other income (expense), net

 

 

(4

)

 

 

5

 

 

 

(9

)

Total other income, net

 

 

709

 

 

 

1,609

 

 

 

(900

)

Net loss

 

$

(16,755

)

 

$

(15,566

)

 

$

(1,189

)

 

Grant Revenue (in thousands):

 

 

 

Six Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

BARDA Contract (tebipenem pivoxil)

 

$

 

 

$

3,122

 

 

$

(3,122

)

NIAID Contract (SPR206)

 

 

 

 

 

28

 

 

 

(28

)

Total grant revenue

 

$

 

 

$

3,150

 

 

$

(3,150

)

 

No grant revenue was recognized during the six months ended June 30, 2026. Grant revenue recognized during the six months ended June 30, 2025 consisted of the reimbursement of qualifying expenses incurred in connection with our various government awards. The decrease in grant revenue during the six months ended June 30, 2026 was primarily due to a decrease of $3.1 million under our BARDA contract for tebipenem pivoxil, and a decrease of less than $0.1 million under our agreement with U.S. National Institute of Allergy and Infectious Diseases ("NIAID”) relating to SPR206. On July 6, 2026, we and BARDA mutually agreed to terminate the contract between us, and BARDA deobligated all remaining funds under the contract. We will not receive any additional funding from BARDA under this contract.

Collaboration Revenue (in thousands):

 

 

 

Six Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

GSK (tebipenem pivoxil)

 

$

258

 

 

$

16,901

 

 

$

(16,643

)

Pfizer (SPR206)

 

 

 

 

 

12

 

 

 

(12

)

Total collaboration revenue

 

$

258

 

 

$

16,913

 

 

$

(16,655

)

 

During the six months ended June 30, 2026, we recognized $0.3 million in collaboration revenue related to our agreement with GSK. During the six months ended June 30, 2025, we recognized $16.9 million in collaboration revenue related to our agreement with GSK and less than $0.1 million in collaboration revenue related to our agreement with Pfizer. The decrease in revenue under the GSK License Agreement was primarily related to the Phase 3 PIVOT-PO trial for tebipenem pivoxil stopping early for efficacy in the first half of 2025 following the pre-specified interim analysis.

38


 

Research and Development Expenses (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

Six Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

Direct research and development expenses by program:

 

 

 

 

 

 

 

 

 

Tebipenem pivoxil

 

$

1,710

 

 

$

15,363

 

 

$

(13,653

)

SPR720

 

 

 

 

 

797

 

 

 

(797

)

SPR206

 

 

 

 

 

49

 

 

 

(49

)

Personnel related (including share-based compensation)

 

 

3,018

 

 

 

5,948

 

 

 

(2,930

)

Facility related and other

 

 

1,615

 

 

 

2,121

 

 

 

(506

)

Total research and development expenses

 

$

6,343

 

 

$

24,278

 

 

$

(17,935

)

 

Direct costs related to our tebipenem pivoxil program decreased by $13.7 million during the six months ended June 30, 2026, compared to the six months ended June 30, 2025, due to a decrease in clinical activities related to our pivotal Phase 3 PIVOT-PO trial for tebipenem pivoxil, which met its primary endpoint and was stopped early for efficacy during the first half of 2025 and later approved by the FDA in June 2026.

Direct costs related to our SPR720 program decreased by $0.8 million during the six months ended June 30, 2026, as compared to the six months ended June 30, 2025, due to the cessation of development and subsequent termination of the SPR720 program, which was announced in November 2025.

Direct costs related to our SPR206 program decreased by less than $0.1 million during the six months ended June 30, 2026, primarily due to the cessation and subsequent termination of the SPR206 program, which was announced in March 2025.

The decrease in personnel-related costs of $2.9 million was primarily a result of decreased headcount costs in our research and development functions between periods. Personnel-related costs for the six months ended June 30, 2026 and 2025 included stock-based compensation expense of $0.6 million and $0.9 million, respectively.

Facility-related and other costs primarily reflect costs related to supporting our research and development staff.

General and Administrative Expenses (in thousands):

 

 

 

Six Months Ended June 30,

 

 

 

 

 

 

2026

 

 

2025

 

 

$ Change

 

Personnel related (including share-based compensation)

 

$

4,082

 

 

$

7,486

 

 

$

(3,404

)

Professional and consultant fees

 

 

5,841

 

 

 

4,249

 

 

 

1,592

 

Facility related and other

 

 

1,456

 

 

 

967

 

 

 

489

 

Total general and administrative expenses

 

$

11,379

 

 

$

12,702

 

 

$

(1,323

)

 

The decrease in personnel-related costs of $3.4 million was primarily a result of decreased headcount costs in our general and administrative functions between the periods. Personnel-related costs for both the six months ended June 30, 2026 and 2025 included share-based compensation expense of $1.3 million.

The increase in professional and consultant fees of $1.6 million was primarily due to an increase in business development, legal and consulting expenses incurred in the six months ended June 30, 2026.

Facility-related and other costs primarily reflect costs related to supporting our general and administrative staff.

Other Income (Expense), Net

Total other income (expense), net was $0.7 million for the six months ended June 30, 2026, compared to $1.6 million for the six months ended June 30, 2025. Total other income for the six months ended June 30, 2026, included $0.7 million of interest income, offset by immaterial fluctuations in unrealized foreign currency. Total other income for the six months ended June 30, 2025, included $1.6 million of interest income, of which $0.7 million related to the significant financing component recognized under the GSK License Agreement, offset by immaterial fluctuations in unrealized foreign currency.

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Liquidity and Capital Resources

Since our inception, we have incurred significant operating losses. We have recognized revenue to date from funding arrangements with the U.S. Department of Defense, NIAID, Combating Antibiotic Resistant Bacteria Biopharmaceutical Accelerator and BARDA, the GSK License Agreement and our license agreements with Everest and Pfizer. We have not yet commercialized any product candidates and we may not generate revenue from sales of any current or future product candidates. To date, we have funded our operations with payments received under license and collaboration agreements and funding from government contracts, from the proceeds of multiple common stock offerings, and proceeds received from royalty financing transaction that closed in July 2026. As of June 30, 2026, we had cash and cash equivalents of $50.8 million.

Cash Flows

The following table summarizes our sources and uses of cash for the six months ended June 30, 2026 and 2025 (in thousands):

 

 

 

Six Months Ended June 30,

 

 

 

2026

 

 

2025

 

Cash provided by (used in) operating activities

 

$

10,509

 

 

$

(21,695

)

Net increase (decrease) in cash and cash equivalents

 

$

10,509

 

 

$

(21,695

)

 

Operating Activities

Net cash provided by operating activities for the six months ended June 30, 2026, was $10.5 million, primarily resulting from our net loss of $16.8 million, adjusted for an increase to non-cash items of $2.4 million (primarily stock-based compensation). Net cash provided by changes in our operating assets and liabilities was $24.9 million and consisted primarily of a $25.4 million decrease in the collaboration receivable-related party, due to the receipt of the NDA resubmission milestone payment from GSK (see Note 9, License, Collaboration and Service Agreements, in the condensed consolidated financial statements), a $0.3 million decrease in deferred revenue a $0.5 million increase in accrued expenses, a $0.5 million decrease in accounts payable, a $0.9 million increase in prepaid expenses and other receivables and a $0.9 million decrease in operating lease liability.

Net cash used in operating activities for the six months ended June 30, 2025, was $21.7 million, primarily resulting from our net loss of $15.6 million, adjusted for an increase to non-cash items of $2.8 million (primarily stock-based compensation). Net cash used by changes in our operating assets and liabilities was $9.0 million and consisted primarily of a $24.9 million decrease in the collaboration receivable-related party, due to the receipt of the third installment payment from GSK (see Note 9, License, Collaboration and Service Agreements, in the condensed consolidated financial statements), a $16.9 million decrease in deferred revenue, a $11.0 million decrease in accrued expenses, a $6.5 million decrease in accounts payable, a $0.6 million increase in prepaid expenses, a $0.6 million net increase in other receivables, and a $0.7 million decrease in operating lease liability.

Changes in accounts payable, accrued expenses and other current liabilities and prepaid expenses and other current assets in all periods were generally due to the advancement of our program and the timing of vendor invoicing and payments. Changes in deferred revenue are related to the GSK License Agreement. Changes in collaboration receivable - related party are related to the GSK License Agreement.

Investing Activities

We did not undertake any investing activities during either of the six months ended June 30, 2026 or 2025.

Financing Activities

We did not undertake any financing activities during either of the six months ended June 30, 2026 or 2025.

Funding Requirements

Our future use of operating cash and capital requirements, and the timing and amount thereof, will depend largely on:

the initiation, progress, timing, costs and results of any preclinical studies and clinical trials of any of our current or future product candidates;
the number and characteristics of product candidates that we may pursue;
the outcome, timing and costs of seeking regulatory approvals;

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the costs of commercialization activities for our future product candidates if we receive marketing approval, including the costs and timing of establishing product sales, marketing, distribution and manufacturing capabilities;
the terms and timing of any future collaborations, licensing or other arrangements that we may establish;
the amount and timing of any payments we may be required to make, or that we may receive, in connection with the licensing, filing, prosecution, defense and enforcement of any patents or other intellectual property rights, including milestone and royalty payments and patent prosecution fees that we are obligated to pay pursuant to our license agreements;
the amount of funding that we receive under government contracts that we may apply for in the future;
the costs of preparing, filing and prosecuting patent applications, maintaining and protecting our intellectual property rights and defending against any intellectual property related claims;
the costs of operating as a public company;
the extent to which we in-license or acquire other products and technologies; and
costs associated with litigation and any government investigation, and maintaining compliance with government regulations.

As of June 30, 2026, we had cash and cash equivalents of $50.8 million. In accordance with ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic 205-40), we are required to evaluate whether there are conditions and events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern from the issuance date of our financial statements. Based on our current operating plan, we believe that our cash and cash equivalents as of June 30, 2026, together with proceeds from the royalty financing transaction that closed in July 2026, will enable us to fund our operating expenses and required capital expenditure requirements for at least 12 months from the issuance of the financial statements included in this report and into the second half of 2029.

This timeline is uncertain and subject to change as we explore opportunities to grow our program. We have developed plans to mitigate this risk, which primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations and/or reducing cash expenditures. If we are not able to secure adequate additional funding, we plan to make reductions in spending. In that event, we may have to delay, scale back, or eliminate some or all of our planned clinical trials, and any research stage programs. The actions necessary to reduce spending under this plan at a level that mitigates the factors described above are not considered probable, as defined in the accounting standards and therefore, the full extent to which management may extend our funds through these actions may not be considered in management’s assessment of our ability to continue as a going concern.

We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. Because of the numerous risks and uncertainties associated with research, development and commercialization of pharmaceutical product candidates, we are unable to estimate the exact amount of our working capital requirements. Our future funding requirements will depend on and could increase significantly as a result of many factors, including those listed above.

Until such time, if ever, as we can generate substantial product revenue, we expect to finance our operations through a combination of equity offerings, debt financings, government funding, collaborations, strategic alliances and marketing, distribution or licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, our stockholders’ ownership interests will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making acquisitions or capital expenditures or declaring dividends. If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If our access to capital is restricted or associated borrowing costs increase as a result of developments in financial markets, our operations and financial condition could be adversely impacted. If we are unable to raise additional funds through equity or debt financings or other arrangements when needed, we may be required to delay, limit, reduce or terminate our research, product development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

Contractual Obligations and Commitments

During the three and six months ended June 30, 2026, there have been no material changes to our contractual obligations and commitments outside the ordinary course of business from those described under the heading "Management’s Discussion and

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Analysis of Financial Condition and Results of Operations—Contractual Obligations and Commitments” in our Annual Report on Form 10-K for the year ended December 31, 2025.

Off-Balance Sheet Arrangements

We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined in the rules and regulations of the SEC.

Recently Issued and Adopted Accounting Pronouncements

A description of recently issued accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 2 to our condensed consolidated financial statements appearing elsewhere in this Quarterly Report on Form 10-Q.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

As of June 30, 2026, we had cash and cash equivalents of $50.8 million, consisting of cash and money market accounts. The primary objectives of our investment activities are to preserve principal, provide liquidity and maximize income without significantly increasing risk. Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S. Treasury interest rates. We did not have any assets classified as marketable securities as of June 30, 2026. As we incur research expenses in foreign countries, we face exposure to movements in foreign currency exchange rates, primarily the Euro, British Pound and Australian dollar against the U.S. dollar. Historically, foreign currency fluctuations have not had a material impact on our consolidated financial statements.

Please note, that we are a smaller reporting company as defined by Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the "Exchange Act”) and are not required to provide the information under this item. Therefore, the above disclosure is discretionary.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain "disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer), evaluated the effectiveness of our disclosure controls and procedures as of June 30, 2026. Based on the evaluation of our disclosure controls and procedures as of June 30, 2026, our Chief Executive Officer and Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control over Financial Reporting

No change in our internal control over financial reporting (as defined in Rules 13a-15(d) and 15d-15(d) under the Exchange Act) occurred during the three months ended June 30, 2026 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II—OTHER INFORMATION

SEC Investigation and Wells Notice

On January 9, 2025, the Company responded to a "Wells Notice” from the staff of the SEC (the "Staff”) regarding its preliminary determination to recommend a civil enforcement action or administrative proceeding against the Company, its former Chief Executive Officer and a former member of its Board of Directors, Ankit Mahadevia, M.D. ("Dr. Mahadevia”), and its former Chief Financial Officer and President and Chief Executive Officer, Satyavrat "Sath” Shukla ("Mr. Shukla”), relating to certain public disclosures by the Company from March 31, 2022 leading up to the Company’s announcement on May 3, 2022 that it had determined to cease commercialization of tebipenem pivoxil based on feedback from the FDA, and whether the Company’s disclosures may have violated the federal securities laws.

A Wells Notice is neither a formal charge of wrongdoing nor a final determination that the recipient has violated any law, but is a preliminary determination by the Staff to recommend to the SEC Commissioners that a civil enforcement action or administrative proceeding be brought against the recipients. It provides the recipients the opportunity to address in a non-public forum the issues raised by the Staff before a recommendation is made to the SEC regarding an enforcement action. If the SEC were to authorize an action against the Company and/or any of the identified individuals, it may seek an injunction or cease-and-desist order against future violations of provisions of the federal securities laws, the imposition of civil monetary penalties, disgorgement or other equitable relief.

On January 16, 2026, acting pursuant to an offer of settlement submitted by each of Dr. Mahadevia and Mr. Shukla, the SEC issued an order instituting cease-and-desist proceedings, making findings, and imposing a cease-and-desist order pursuant to Section 8A of the Securities Act, directing Dr. Mahadevia and Mr. Shukla to cease and desist from committing or causing any violations of Section 17(a)(2) of the Securities Act, 15 U.S.C. § 77q(a)(2) (the "SEC Order”). In the SEC Order, the SEC made findings that, from March 31, 2022 to May 3, 2022, Dr. Mahadevia and Mr. Shukla, violated Section 17(a)(2) of Securities Act, which provides that it is unlawful for any person, in the offer or sale of a security, to "obtain money or property by means of any untrue statement of material fact” or a material omission necessary to make statements made not misleading. A violation of this provision does not require scienter and may rest on a finding of negligence. Dr. Mahadevia and Mr. Shukla consented to entry of the SEC Order without admitting or denying the findings contained therein, except as to jurisdiction.

On January 20, 2026, the Company received a letter (the "Letter”) from the SEC advising the Company that the SEC has concluded its investigation into the Company and that, based on the information as of the date of the Letter, the SEC does not intend to recommend an enforcement action against the Company at this time. The Letter was provided under the guidelines set out in the final paragraph of Securities Act Release No. 5310.

The Company and Mr. Shukla mutually decided to separate, and Mr. Shukla resigned from the Board of Directors, in each case effective as of May 2, 2025. On January 30, 2026, Dr. Mahadevia resigned from the Board of Directors, including from his service on the Development Committee of the Board of Directors and from all officer and director positions he then held with any and all subsidiaries of the Company, effective as of January 30, 2026.

Item 1A. Risk Factors.

Careful consideration should be given to the following risk factors, in addition to the other information set forth in this Quarterly Report on Form 10-Q, including the section of this Quarterly Report on Form 10-Q titled "Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes, and in other documents that we file with the SEC, in evaluating our company and our business. If any of the events described in the following risk factors and the risks described elsewhere in this Quarterly Report on Form 10-Q actually occur, our business, financial condition, results of operations and future growth prospects could be materially and adversely affected, and the trading price of our securities could decline. Our actual results could differ materially from those contained in the forward-looking statements we have made in this Quarterly Report on Form 10-Q and those we may make from time to time. The risks and uncertainties described below are not the only ones we face. Additional risks not presently known to us or other factors not perceived by us to present significant risks to our business at this time also may impair our business operations.

Risks Related to Our Business and Product Candidates

We are substantially dependent on the success of our new product candidate, SP001, and focus on SP001 may not be successful.

On June 17, 2026, we and GSK announced that the FDA approved Utebzi (tebipenem pivoxil). We are party to an exclusive license agreement with GSK for the development, manufacture and commercialization of Utebzi, which includes the transfer of the

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IND and the NDA ownership to GSK, and pursuant to which GSK is obligated to make milestone payments if certain milestones are achieved and to pay royalties based on commercial launch and achievement of pre-specified sales thresholds. On July 8, 2026, we and our affiliates entered into a non-recourse non-dilutive royalty financing transaction with affiliates of HCRx, pursuant to which HCRx will receive a portion of the future GSK Proceeds. As such, our receipt of royalty and milestone revenues from GSK is limited to 35% of the GSK Proceeds arising after payment in full of the Notes.

 

Following the FDA approval of Utebzi, and the termination of our earlier stage programs (SPR206 and SPR720), we remain focused on advancing other corporate activities, including growing our portfolio of clinical-stage product candidates. On July 8, 2026, we entered into a license agreement with Innovent pursuant to which we received exclusive rights to research, develop, manufacture, and commercialize SP001 worldwide, excluding the Innovent Territory, where Innovent retains rights. The in-licensing of SP001 represents a strategic pivot by us from the development of tebipenem pivoxil to the development of a new product candidate focused on new indications for which we believe we have relevant but limited prior experience.

Our business and future success depends on our ability to successfully develop, obtain regulatory approval for and successfully commercialize our new lead product candidate, SP001. SP001 is our only product candidate currently in clinical development, and our business depends on its successful development. SP001 will require additional clinical and non-clinical development, regulatory review and approval, substantial investment, access to sufficient commercial manufacturing capacity and significant marketing efforts before we can generate any revenue from product sales, if ever. We cannot be certain SP001 will receive regulatory approval or be successfully commercialized even if we receive regulatory approval. In addition, because SP001 is our only product candidate currently in clinical development, if SP001 encounters safety or efficacy problems, developmental delays or regulatory issues or other problems, our development plans and business would be significantly harmed.

Further, the success of SP001 will depend in part on our ability to integrate this new product candidate into our business and program in an efficient and effective manner. We may not be able to realize the full potential of business opportunities and growth prospects of SP001 to the extent anticipated or at all. Challenges associated with the integration of SP001 may include those related to building out our operational and administrative capabilities as well as the hiring of employees to support our strategic pivot. If we are unable to successfully integrate SP001, or if we experience delays in clinical development, we may incur unanticipated liabilities and be unable to fully realize the potential benefit of future revenue and other anticipated benefits resulting from the in-license of SP001, and our business, results of operations and financial condition could be adversely affected.

There can be no assurance that the FDA will accept data from any trials conducted outside of the United States, including any trials conducted in China.

Subject to FDA clearance of the U.S. IND, we currently expect to advance SP001 into a Phase 2 trial in IgG4-RD patients in the second quarter of 2027, based in part on data generated by Innovent in its Phase 1b study conducted in China in patients with SjD. The acceptance of study data from clinical trials conducted outside the United States by the FDA may be subject to certain conditions, or such data may not be accepted at all. For example, in cases where data from foreign clinical trials are intended to serve as the sole basis for regulatory approval in the United States, the FDA will generally not approve the application on the basis of foreign data alone unless the data are applicable to the U.S. population and U.S. medical practice; the trials were performed by clinical investigators of recognized competence and pursuant to Good Clinical Practice ("GCP”) regulations; and the data may be considered valid without the need for an on-site inspection by the FDA, or if the FDA considers such inspection to be necessary, the FDA is able to validate the data through an on-site inspection or other appropriate means. Even where the foreign study data are not intended to serve as the sole basis for approval, if the relevant study was not conducted pursuant to an IND, the FDA will generally not accept the data as support for a marketing application unless the study was conducted in accordance with GCP requirements and the FDA is able to validate the data from the study through an onsite inspection if deemed necessary.

There can be no assurance that the FDA will accept data from trials conducted outside of the United States to support our IND application. For example, the data generated by Innovent in China in its study of patients with SjD may not be acceptable to the FDA or other regulatory authorities. In May 2026, the United States House Appropriations Committee issued a draft, non-binding report accompanying its proposed Fiscal Year 2027 Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations Act that would bar the FDA from accepting, reviewing, or considering any covered clinical data generated by a clinical investigation site in China, Russia, Iran or North Korea in support of an IND, including any amendment or supplement thereto. If the FDA or any comparable foreign regulatory authority does not accept such data from our clinical trials of any of our current or future product candidates, we would need to conduct additional trials, which could be costly and time-consuming, and which may not ultimately support approval in the United States.

Our ability to realize the value of tebipenem pivoxil depends on the commercialization of Utebzi (tebipenem pivoxil) through our partnership with GSK.

 

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In June 2026, the FDA approved GSK’s NDA resubmission for Utebzi. We have invested a significant portion of our efforts and financial resources in the development of tebipenem pivoxil with GSK as a product candidate for the treatment of bacterial infections causing cUTI. Our ability to realize the value of tebipenem pivoxil depends on the expected timeline and the success of GSK’s commercialization of Utebzi. Further, on July 8, 2026, we and our affiliates entered into a non-recourse non-dilutive royalty financing transaction with affiliates of HCRx, pursuant to which HCRx will receive a portion of the future GSK Proceeds. As such, our receipt of royalty and milestone revenues from GSK is limited to 35% of the GSK Proceeds arising after payment in full of the Notes. If GSK’s commercialization efforts are unsuccessful or significantly delayed, our receipt of royalty and milestone revenues from GSK may not align with our expectations and our business could be materially harmed

If our clinical trials fail to produce favorable results, we may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development and commercialization of any existing and future product candidates.

We may not commercialize, market, promote or sell any product candidate in the United States without obtaining marketing approval from the FDA or in other countries without obtaining approvals from comparable foreign regulatory authorities, such as the European Medicines Agency ("EMA”), and we may never receive such approvals. We must complete extensive preclinical development and clinical trials to demonstrate the safety and efficacy of any product candidates in humans before we will be able to obtain these approvals. Clinical testing is expensive, difficult to design and implement, can take many years to complete and is inherently uncertain as to outcome.

The clinical development of any existing or future product candidates is susceptible to the risk of failure inherent at any stage of drug development, including failure to demonstrate efficacy in a trial or across a broad population of patients, the occurrence of severe adverse events, failure to comply with protocols or applicable regulatory requirements, and determination by the FDA or any comparable foreign regulatory authority that a drug product is not approvable. A number of companies in the pharmaceutical industry, including biotechnology companies, have suffered significant setbacks in clinical trials, even after promising results in earlier nonclinical studies or clinical trials. The results of preclinical and other nonclinical studies and/or early clinical trials of any product candidates may not be predictive of the results of later-stage clinical trials. Notwithstanding any promising results in early nonclinical studies or clinical trials, we cannot be certain that we will not face similar setbacks.

In addition, preclinical and clinical data are often susceptible to varying interpretations and analyses. Many companies that believed their product candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval for the product candidates. Even if we believe that the results of our clinical trials warrant marketing approval, the FDA or comparable foreign regulatory authorities may disagree and may not grant marketing approval of our existing or future product candidates.

In some instances, there can be significant variability in safety and/or efficacy results between different trials of the same product candidate due to numerous factors, including changes in trial procedures set forth in protocols, differences in the size and type of the patient populations, adherence to the dosing regimen and other trial protocols and the rate of dropout among clinical trial participants, among others. It is possible that even if one or more of our existing or future product candidates has a beneficial effect, that effect will not be detected during clinical evaluation as a result of one of the factors listed or otherwise. Conversely, as a result of the same factors, our clinical trials may indicate an apparent positive effect of a product candidate that is greater than the actual positive effect, if any. Similarly, in our clinical trials, we may fail to detect toxicity or intolerability of our existing or future product candidates or may determine that one of our existing or future product candidates are toxic or not well tolerated when that is not in fact the case. In the case of our clinical trials, results may differ on the basis of the type of bacteria with which patients are infected. We cannot make assurances that any clinical trials that we may conduct will demonstrate consistent or adequate efficacy and safety to obtain regulatory approval to market any product candidates.

We may encounter unforeseen events prior to, during, or as a result of, clinical trials that could delay or prevent us from obtaining regulatory approval for any product candidates, including:

the FDA or other comparable foreign regulatory authorities may disagree as to the design or implementation of our clinical trials;
we may be delayed in or fail to reach agreement on acceptable terms with prospective CROs and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;
clinical trials of any product candidates may produce unfavorable or inconclusive results;
we may decide, or regulators may cause us, to conduct additional clinical trials or abandon product development programs;
the number of patients required for clinical trials of any product candidates may be larger than we anticipate, enrollment in these clinical trials may be slower than we anticipate, participants may drop out of these clinical trials at a higher rate than we anticipate or we may fail to recruit suitable patients to participate in clinical trials;

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our third-party contractors, including those manufacturing any product candidates or conducting clinical trials on our behalf, may fail to comply with regulatory requirements or meet their contractual obligations to us in a timely manner, or at all;
the FDA or institutional review boards may not authorize us or our investigators to commence a clinical trial or conduct a clinical trial at a prospective trial site;
regulators or institutional review boards may require that we or our investigators suspend or terminate clinical trials of any product candidates for various reasons, including noncompliance with regulatory requirements or a finding that the participants are being exposed to unacceptable health risks, undesirable side effects or other unexpected characteristics of the product candidate;
the FDA or comparable foreign regulatory authorities may fail to approve the manufacturing processes or facilities of third-party manufacturers with which we enter into agreements for clinical and commercial supplies;
the supply or quality of any product candidates or other materials necessary to conduct clinical trials of any product candidates may be insufficient or inadequate; and
the approval policies or regulations of the FDA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient for approval.

We could also encounter delays if a clinical trial is suspended or terminated by us, by the institutional review boards ("IRBs”) responsible for overseeing such trials, by the Data Safety Monitoring Board ("DSMB”) if any, for such trial or by the FDA or other regulatory authorities. Such authorities may suspend or terminate a clinical trial due to a number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical trial operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, unforeseen safety issues or adverse side effects, failure to demonstrate a benefit from using a drug or changes in governmental regulations or administrative actions.

If we are required to conduct additional clinical trials or other testing of any existing or future product candidates beyond the trials and testing that we contemplate, if we are unable to successfully complete clinical trials or other testing of any existing or future product candidates, if the results of these trials or tests are unfavorable or are only modestly favorable or if there are safety concerns associated with any existing or future product candidates, we may:

incur additional unplanned costs;
be delayed in obtaining marketing approval for any product candidates;
not obtain marketing approval at all;
obtain approval for indications or patient populations that are not as broad as intended or desired;
obtain approval with labeling that includes significant use or distribution restrictions or significant safety warnings, including boxed warnings;
be subject to additional post-marketing testing or other requirements; or
be required to remove the product from the market after obtaining marketing approval.

Our failure to successfully initiate and complete clinical trials of any product candidates and to demonstrate the efficacy and safety necessary to obtain regulatory approval to market any existing or future product candidates would significantly harm our business. Our product candidate development costs will also increase if we experience delays in testing or marketing approvals and we may be required to obtain additional funds to complete clinical trials. We cannot make assurances that our clinical trials will begin as planned or be completed on schedule, if at all, or that we will not need to restructure our trials after they have begun. Significant clinical trial delays also could shorten any periods during which we may have the exclusive right to commercialize any product candidates or allow our competitors to bring products to market before we do and impair our ability to successfully commercialize any product candidates, which may harm our business and results of operations. In addition, many of the factors that cause, or lead to, delays of clinical trials may ultimately lead to the denial of regulatory approval of any product candidates.

If we experience delays or difficulties in the enrollment of patients in clinical trials, clinical development activities could be delayed or otherwise adversely affected.

The timely completion of clinical trials in accordance with their protocols depends, among other things, on our ability to enroll a sufficient number of patients who remain in the study until its conclusion. The initiation, continuation and completion of our clinical trials relies on our ability to locate and enroll a sufficient number of eligible patients to participate in clinical trials as required by the

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FDA or comparable foreign regulatory authorities, such as the EMA. Patient enrollment is a significant factor in the timing of clinical trials, and is affected by many factors, including:

the size and nature of the target patient population;
the severity of the disease under investigation;
the proximity of patients to clinical sites;
the patient eligibility criteria for participation in the clinical trial;
the design of the clinical trial;
the availability of clinically evaluable patients;
our ability to recruit clinical trial investigators with appropriate competencies and experience;
competing clinical trials and clinicians’ and patients’ perceptions as to the potential advantages and risks of the product candidate being studied in relation to other available therapies, including any new drugs that may be approved for the indications that we are investigating;
our ability to obtain and maintain patient consents; and
the risk that participants enrolled in clinical trials will drop out of the trials before completion.

Our inability to enroll a sufficient number of patients for our clinical trials would result in significant delays or might require us to abandon one or more clinical trials altogether. Enrollment delays in our clinical trials may result in increased development costs for any existing or future product candidates, slow down or halt our product candidate development and approval process and jeopardize our ability to seek and obtain the marketing approval required to commence product sales and generate revenue, which would cause the value of our company to decline and limit our ability to obtain additional financing if needed.

Congress also amended the Federal Food, Drug, and Cosmetic Act ("FDCA”) to require sponsors of a Phase 3 clinical trial, or other "pivotal study” of a new drug to support marketing authorization, to design and submit a diversity action plan ("DAP”) for such clinical trial. The action plan must describe appropriate diversity goals for enrollment, as well as a rationale for the goals and a description of how the sponsor will meet them. In the future, we will be required to submit a DAP to the FDA by the time we submit a Phase 3 clinical trial, or pivotal study, protocol to the agency for review, unless we are able to obtain a waiver for some or all of the requirements for a DAP. It is unknown at this time how the DAP may affect the planning and timing of any future Phase 3 clinical trial for any product candidates. However, initiation of such trials may be delayed if the FDA objects to our proposed DAPs for any future Phase 3 clinical trial for any product candidates, and we may experience difficulties recruiting a diverse population of patients in attempting to fulfill the requirements of any approved DAP.

In June 2024, as mandated by the FDCA, the FDA issued draft guidance outlining the general requirements for DAPs. Unlike most guidance documents issued by the FDA, the DAP guidance when finalized will have the force of law because Food and Drug Omnibus Reform Act of 2022 specifically dictates that the form and manner for submission of DAPs are specified in FDA guidance. On January 27, 2025, in response to an executive order issued by President Trump on January 21, 2025 on Diversity, Equity and Inclusion programs, the FDA removed the draft DAP guidance from its website. That action, along with similar actions by the Trump Administration to remove many other healthcare webpages, is currently the subject of ongoing litigation. On July 3, 2025, the U.S. District Court for the District of Columbia ruled that the administration’s actions to remove these webpages, including the draft DAP guidance, is unlawful under the Administrative Procedure Act. The court ordered the restoration of many of these webpages. In late July 2025, the FDA restored the draft DAP guidance to its website with a statement that "information on this page may be modified and/or removed in the future subject to the terms of the court’s order and implemented consistent with applicable law.” Accordingly, in light of these ongoing actions, there is considerable uncertainty surrounding the draft DAP guidance and how the FDA will consider DAPs in connection with its review of marketing applications.

Analyses of preliminary or interim data from our clinical studies that we announce or publish from time to time may change as more patient data become available and are subject to audit and verification procedures that could result in material changes in the final data.

While we currently have one product approved for sale through our collaboration with GSK, we cannot guarantee that we will ever have additional marketable products. Clinical failure can occur at any stage of clinical development. Clinical trials may produce negative or inconclusive results, and we or any future collaborators may decide, or regulators may require us, to conduct additional clinical trials or preclinical studies. We will be required to demonstrate through well-controlled clinical trials that our existing or future product candidates are safe and effective for use in a diverse population before we can seek marketing approvals for their commercial sale. Success in preclinical studies and early-stage clinical trials does not mean that future larger registration clinical trials will be successful. This is because product candidates in later-stage clinical trials may fail to demonstrate sufficient safety and efficacy

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to the satisfaction of the FDA and comparable foreign regulatory authorities despite having progressed through preclinical studies and early-stage clinical trials.

Analyses of preliminary or interim data from our clinical studies are not necessarily predictive of analyses of final data. Analyses of preliminary and interim data are subject to the risk that one or more of the clinical outcomes may materially change, as more patient data become available and we issue our final clinical study report. Preliminary or interim data also remain subject to audit and verification procedures that may result in the final data being materially different from the preliminary data we previously published. As a result, analyses of interim and preliminary data should be viewed with caution until the analyses of final data are available. Adverse differences between preliminary or interim data and final data could affect our planned clinical path for any product candidates we advance into clinical trials, including potentially increasing cost and/or causing delay in such development.

In some instances, there can be significant variability in safety and efficacy results between different clinical trials of the same product candidate due to numerous factors, including changes in trial protocols, differences in size and type of the patient populations, differences in and adherence to the dosing regimen and other trial protocols and the rate of dropout among clinical trial participants. We therefore do not know whether any clinical trials we may conduct will demonstrate consistent or adequate efficacy and safety sufficient to obtain marketing approval to market our existing or future product candidates.

Serious adverse events or undesirable side effects or other unexpected properties of any product candidates may be identified during development or after approval that could delay, prevent or cause the withdrawal of regulatory approval, limit the commercial potential, or result in significant negative consequences following marketing approval.

Serious adverse events or undesirable side effects caused by, or other unexpected properties of, our existing or future product candidates could cause us, an IRB, or regulatory authorities to interrupt, delay or halt our clinical trials and could result in a more restrictive label, the imposition of distribution or use restrictions or the delay or denial of regulatory approval by the FDA or comparable foreign regulatory authorities. If any of our other product candidates are associated with serious or unexpected adverse events or undesirable side effects, the FDA, the IRBs responsible for overseeing our studies, or a DSMB, could suspend or terminate our clinical trials or the FDA or comparable foreign regulatory authorities could order us to cease clinical trials or deny approval of our existing or future product candidates for any or all targeted indications. Treatment-related side effects could also affect patient recruitment or the ability of enrolled patients to complete the trial or result in potential product liability claims. Any of these occurrences may harm our business, financial condition and prospects significantly.

If unexpected adverse events occur in any of our ongoing or planned clinical trials, we may need to abandon development of product candidates, or limit development to lower doses or to certain uses or subpopulations in which the undesirable side effects or other unfavorable characteristics are less prevalent, less severe or more acceptable from a risk-benefit perspective. Many compounds that initially showed promise in clinical or earlier stage testing are later found to cause undesirable or unexpected side effects that prevented further development of the compound.

Undesirable side effects or other unexpected adverse events or properties of any of our other product candidates could arise or become known either during clinical development or, if approved, after the approved product has been marketed. If such an event occurs during development, our trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us to cease further development of, or could deny approval of any product candidates. If such an event occurs after such product candidates are approved, a number of potentially significant negative consequences may result, including:

regulatory authorities may withdraw or limit their approval of such product;
we may decide to or be required to recall a product or change the way such product is administered to patients;
regulatory authorities may require additional warnings on the label, such as a "black box” warning or a contraindication, or impose use restrictions;
regulatory authorities may require one or more post-market studies to monitor the safety and efficacy of the product;
we may be required to implement a risk evaluation and mitigation strategy ("REMS”), which may include the creation of a medication guide outlining the risks of such side effects for distribution to patients or restrictions on distribution or other elements;
we could be sued and held liable for harm caused to patients exposed to or taking our existing or future product candidates;
our product may become less competitive; and
our reputation may suffer.

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We believe that any of these events could prevent us from achieving or maintaining market acceptance of the affected product candidate, if approved, or could substantially increase commercialization costs and expenses, which could delay or prevent us from generating revenue from the sale of our products and harm our business and results of operations.

Even if a product candidate does obtain regulatory approval, it may never achieve the market acceptance by physicians, patients, hospitals, third-party payors and others in the medical community that is necessary for commercial success and the market opportunity may be smaller than we estimate.

Even if we obtain FDA or other regulatory approvals and are able to launch any of our current or future product candidates commercially, the approved product candidate may nonetheless fail to gain sufficient market acceptance among physicians, patients, hospitals (including pharmacy directors) and third-party payors and, ultimately, may not be commercially successful. For example, Utebzi, which was approved in June 2026, may fail to gain sufficient market acceptance despite commercialization efforts by GSK. Physicians are often reluctant to switch their patients from existing therapies even when new and potentially more effective or convenient treatments enter the market. Further, patients often acclimate to the therapy that they are currently taking and do not want to switch unless their physicians recommend switching products or they are required to switch therapies due to lack of coverage and reimbursement for existing therapies. If an approved product candidate does not achieve an adequate level of acceptance, we may not generate significant product revenues or any profits from operations. The degree of market acceptance of any product candidate for which we receive approval depends on a number of factors, including:

the efficacy and safety of the product candidate as demonstrated in clinical trials;
relative convenience and ease of administration;
the clinical indications for which the product candidate is approved;
the potential and perceived advantages and disadvantages of the product candidates, including cost and clinical benefit relative to alternative treatments;
the willingness of physicians to prescribe the product and of the target patient population to try new therapies;
the willingness of hospital pharmacy directors to purchase the product for their formularies;
acceptance by physicians, patients, operators of hospitals and treatment facilities and parties responsible for coverage and reimbursement of the product;
the availability of coverage and adequate reimbursement by third-party payors and government authorities;
the effectiveness of our sales and marketing efforts;
the strength of marketing and distribution support;
limitations or warnings, including distribution or use restrictions, contained in the product’s approved labeling or an approved REMS;
whether the product is designated under physician treatment guidelines as a first-line therapy or as a second- or third-line therapy for particular infections;
the approval of other new products for the same indications;
the timing of market introduction of the approved product as well as competitive products;
adverse publicity about the product or favorable publicity about competitive products;
the emergence of bacterial resistance to the product, in the case of Utebzi; and
the rate at which resistance to other drugs in the target infections grows, in the case of Utebzi.

Any failure of any product candidates that obtains regulatory approval to achieve market acceptance or commercial success would adversely affect our business prospects.

We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications that may be more profitable or for which there is a greater likelihood of success.

Because we have limited financial and managerial resources, we intend to focus on developing product candidates for specific indications that we identify as most likely to succeed, in terms of both their potential for marketing approval and commercialization. As a result, we may forego or delay pursuit of opportunities with other product candidates or for other indications that may prove to have greater commercial potential. For example,we have terminated our SPR206 program and our SPR720 oral program and have shifted our focus and resources to advancing the clinical development of SP001, as well as other corporate activities.

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Our resource allocation decisions may cause us to fail to capitalize on viable commercial products or profitable market opportunities. Our spending on current and future research and development programs and product candidates for specific indications may not yield any commercially viable product candidates. If we do not accurately evaluate the commercial potential or target market for a particular product candidate, we may relinquish valuable rights to that product candidate through collaboration, licensing or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights to the product candidate.

If we or our collaborators are unable to establish sales, marketing and distribution capabilities or enter into sales, marketing and distribution agreements with third parties, we or our collaborators may not be successful in commercializing Utebzi or any of our future product candidates, if such product candidates are approved.

To achieve commercial success for any approved product, we must either develop a sales and marketing organization or outsource those functions to third parties. The development of sales, marketing and distribution capabilities will require substantial resources, will be time-consuming and could delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing and distribution capabilities is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization costs. This may be costly, and our investment would be lost if we cannot retain or reposition our sales and marketing personnel. In addition, we may not be able to hire a sales force in the United States that is sufficient in size or has adequate expertise in the medical markets that we intend to target. If we or our collaborators are unable to establish a sales force and marketing and distribution capabilities, our operating results may be adversely affected.

Factors that may inhibit our efforts to commercialize our products on our own include:

our inability to recruit and retain adequate numbers of effective sales and marketing personnel;
the inability of sales personnel to obtain access to or persuade adequate numbers of physicians to prescribe any future products;
the lack of complementary products to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies with more extensive product lines; and
unforeseen costs and expenses associated with creating an independent sales and marketing organization.

We intend to use collaborators to assist with the commercialization of any of our current and future product candidates, including the GSK License Agreement for the development and commercialization of Utebzi. As a result of entering into arrangements with third parties to perform sales, marketing and distribution services, our product revenues or the profitability of these product revenues to us would likely be lower than if we were to directly market and sell products in those markets. Furthermore, we may be unsuccessful in entering into the necessary arrangements with third parties or may be unable to do so on terms that are favorable to us. In addition, we likely would have little control over such third parties, and any of them might fail to devote the necessary resources and attention to sell and market our products effectively.

If we or our collaborators do not establish sales and marketing capabilities successfully, either on our own or in collaboration with third parties, we will not be successful in commercializing any product candidates.

If we engage in future acquisitions or strategic collaborations, this may increase our capital requirements, dilute our stockholders, cause us to incur debt or assume contingent liabilities and subject us to other risks.

We may evaluate various acquisitions and strategic collaborations, including licensing or acquiring complementary products, intellectual property rights, technologies or businesses. Any potential acquisition or strategic collaboration may entail numerous risks, including:

increased operating expenses and cash requirements;
the assumption of additional indebtedness or contingent liabilities;
assimilation of operations, intellectual property and products of an acquired company, including difficulties associated with integrating new personnel;
the diversion of our management’s attention from any existing or future product candidates and initiatives in pursuing such acquisition or strategic collaboration;
retention of key employees, the loss of key personnel and uncertainties in our ability to maintain key business relationships;
risks and uncertainties associated with the other party to such a transaction, including the prospects of that party and their existing products or product candidates and regulatory approvals; and

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our inability to generate revenue from acquired technology and/or products sufficient to meet our objectives in undertaking the acquisition or collaboration or even to offset transaction costs.

In addition, if we undertake acquisitions, we may issue dilutive securities, assume or incur debt obligations, incur large one-time expenses and acquire intangible assets that could result in significant future amortization expense. Moreover, we may not be able to locate suitable acquisition or collaboration opportunities and this inability could impair our ability to grow or obtain access to technology or products that may be important to the development of our business.

We face substantial competition from other pharmaceutical and biotechnology companies and our operating results may suffer if we fail to compete effectively.

 

The development and commercialization of new drug products is highly competitive. We face competition from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide with respect to any product candidates that we may seek to develop and commercialize in the future. There are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of product candidates in immunology and inflammation for patients with serious diseases, and product candidates for the treatment of resistant infections. Potential competitors also include academic institutions, government agencies and other public and private research organizations. Our competitors may succeed in developing, acquiring or licensing technologies and drug products that are more effective or less costly than the product candidates that we are currently developing or that we may develop, which could render our existing or future product candidates obsolete and noncompetitive.

 

There are a number of approved products and product candidates in development that may compete with our product candidates in IgG4-related disease, SjD, and other autoimmune and inflammatory disorders. For example, UPLIZNA® (inebilizumab), a CD19-directed B-cell depleting antibody marketed by Amgen Inc., is approved for the treatment of IgG4-related disease. Additional product candidates are in clinical development for IgG4-related disease, including obexelimab (Zenas BioPharma, Inc./Bristol Myers Squibb Company), a bifunctional CD19/FcγRIIB-targeting antibody; rilzabrutinib (Sanofi S.A.), a BTK inhibitor, and efgartigimod (argenx SE), an FcRn inhibitor. In SjD and related autoimmune indications, numerous companies are developing therapies directed against pathways including CD40/CD40L, BAFF, APRIL, BAFF-R, FcRn, BTK, TYK2 and other immune targets. These companies include large pharmaceutical and biotechnology companies such as Amgen, Novartis AG, argenx, Johnson & Johnson, Sanofi, Bristol Myers Squibb, UCB SA, and others, as well as emerging biotechnology companies developing novel therapies. Product candidates currently in development include dazodalibep, ianalumab, efgartigimod, nipocalimab, telitacicept and several additional investigational agents. We may also face competition from companies developing therapies that target the same biological pathway as SP001, including other CD40 or CD40L-directed therapies. In addition, future advances in immunology, autoimmune disease and inflammatory disease treatment may result in the development of products that are safer, more effective, more convenient to administer, less expensive or more rapidly adopted by physicians, patients and payors than our product candidates. If our competitors successfully develop or commercialize such products before us, our commercial opportunity could be materially reduced.

There are a variety of available oral therapies marketed for the treatment of cUTIs that we expect to compete with Utebzi, such as Levaquin, Cipro and Bactrim. Many of the available therapies are well established and widely accepted by physicians, patients and third-party payors. Insurers and other third-party payors may also encourage the use of generic products, for example in the fluoroquinolone class. However, the susceptibility of urinary tract pathogens to the existing treatment alternatives is waning. In addition, GSK’s pricing of Utebzi may be at a significant premium over other competitive products, which may make it difficult for Utebzi to compete with these other products.

 

Many of our competitors have significantly greater financial resources and expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller and other early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These third parties compete with us in recruiting and retaining qualified scientific and management personnel, establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.

 

Utebzi, or any existing or future product candidates that we may commercialize, may become subject to unfavorable pricing regulations, or third-party payor coverage and reimbursement policies that could harm our business

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Marketing approvals, pricing, coverage and reimbursement for new drug products vary widely from country to country. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. As a result, we might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay our commercial launch of the product, possibly for lengthy time periods, which may negatively affect the revenues that we are able to generate from the sale of the product in that country. Adverse pricing limitations may hinder our ability to recoup our investment in one or more product candidates, even if our existing or future product candidates obtain marketing approval.

We currently expect that Utebzi will be administered in a hospital inpatient setting. In the United States, governmental and other third-party payors generally reimburse hospitals a single bundled payment established on a prospective basis intended to cover all items and services provided to the patient during a single hospitalization. Hospitals bill third-party payors for all or a portion of the fees associated with the patient’s hospitalization and bill patients for any deductibles or co-payments. Because there is typically no separate reimbursement for drugs administered in a hospital inpatient setting, some of our target customers may be unwilling to adopt our product candidate in light of the additional associated cost. If we are forced to lower the price we charge for our product candidate, if approved, our gross margins may decrease, which would adversely affect our ability to invest in and grow our business.

To the extent any product candidates we develop are used in an outpatient setting, the commercial success of our existing or future product candidates will depend substantially, both domestically and abroad, on the extent to which coverage and reimbursement for these products and related treatments are available from government health programs and third-party payors. If coverage is not available, or reimbursement is limited, we may not be able to successfully commercialize our existing or future product candidates. Even if coverage is provided, the approved reimbursement amount may not be high enough to allow us to establish or maintain pricing sufficient to realize a sufficient return on our investments. Government authorities and third-party payors, such as health insurers and managed care organizations, publish formularies that identify the medications they will cover and the related payment levels. The healthcare industry is focused on cost containment, both in the United States and elsewhere. Government authorities and third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications, which could affect our ability to sell our existing or future product candidates profitably.

Increasingly, third-party payors are requiring higher levels of evidence of the benefits and clinical outcomes of new technologies and are challenging the prices charged. We cannot be sure that coverage will be available for any product candidate that we commercialize and, if available, that the reimbursement rates will be adequate. Further, the net reimbursement for outpatient drug products may be subject to additional reductions if there are changes to laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States. An inability to promptly obtain coverage and adequate payment rates from both government-funded and private payors for any approved products used on an outpatient basis that we develop could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products and our overall financial condition.

We cannot predict whether bacteria may develop resistance to tebipenem pivoxil, which could affect its revenue potential.

Tebipenem pivoxil is designed to treat bacterial infections, including drug-resistant infections. The bacteria responsible for these infections evolve quickly and readily transfer their resistance mechanisms within and between species. We cannot predict whether or when bacterial resistance to tebipenem pivoxil may develop.

For example, as a carbapenem, tebipenem pivoxil is not active against organisms expressing a resistance mechanism mediated by enzymes known as carbapenemases. Although occurrence of this resistance mechanism is currently rare, we cannot predict whether carbapenemase-mediated resistance will become widespread in regions where tebipenem pivoxil may be marketed if it is approved. The growth of drug resistant infections in community settings or in countries with poor public health infrastructures, or the potential use of our product candidate outside of controlled hospital settings, could contribute to the rise of resistance. If resistance to tebipenem pivoxil becomes prevalent, our ability to generate revenue could suffer.

If we are not successful in developing and commercializing additional product candidates, our ability to expand our business and achieve our strategic objectives would be impaired.

A key element of our strategy is to develop and commercialize a portfolio of therapeutics to treat immunology and inflammation patients. We recently entered into the Innovent Agreement for the in-license of SP001, and may explore in the future, strategic partnerships for the development of new product candidates.

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Research programs to identify product candidates, whether pursued internally or through strategic partnerships, require substantial technical, financial and human resources, whether or not any product candidates are ultimately identified. Our research programs may initially show promise in identifying potential product candidates, yet fail to yield product candidates for clinical development for many reasons, including the following:

the research methodology used may not be successful in identifying potential product candidates;
competitors may develop alternatives that render our existing or future product candidates obsolete;
product candidates that we develop may nevertheless be covered by third parties’ patents or other exclusive rights;
a product candidate may, on further study, be shown to have harmful side effects or other characteristics that indicate it is unlikely to be effective or otherwise does not meet applicable regulatory criteria;
a product candidate may not be capable of being produced in commercial quantities at an acceptable cost, or at all;
a product candidate may not be accepted as safe and effective by patients, the medical community or third-party payors; and
the development of bacterial resistance to potential product candidates may render them ineffective against target infections.

If we are unsuccessful in identifying and developing additional product candidates, our potential for growth may be impaired.

Product liability lawsuits against us could divert our resources, cause us to incur substantial liabilities and limit commercialization of any products that we may develop.

We face an inherent risk of product liability claims as a result of the clinical testing of any product candidates despite obtaining appropriate informed consents from our clinical trial participants. We will face an even greater risk if we obtain marketing approval for and commercially sell any product candidates. For example, we may be sued if any product that we develop allegedly causes injury or is found to be otherwise unsuitable during clinical testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability or a breach of warranties. Claims could also be asserted under state consumer protection acts. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of any product candidates. Regardless of the merits or eventual outcome, liability claims may result in:

reduced resources for our management to pursue our business strategy;
decreased demand for any product candidates or products that we may develop;
injury to our reputation and significant negative media attention;
withdrawal of clinical trial participants;
initiation of investigations by regulators;
product recalls, withdrawals or labeling, marketing or promotional restrictions;
significant costs to defend resulting litigation;
substantial monetary awards to trial participants or patients;
loss of revenue; and
the inability to commercialize any products that we may develop.

Although we maintain general liability insurance and clinical trial liability insurance, this insurance may not fully cover potential liabilities that we may incur. The cost of any product liability litigation or other proceeding, even if resolved in our favor, could be substantial. We will need to increase our insurance coverage if and when we receive marketing approval for and begin selling any product candidates. In addition, insurance coverage is becoming increasingly expensive. If we are unable to obtain or maintain sufficient insurance coverage at an acceptable cost or to otherwise protect against potential product liability claims, it could prevent or inhibit the development and commercial production and sale of any product candidates, which could adversely affect our business, financial condition, results of operations and prospects.

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If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. From time to time and in the future, our operations may involve the use of hazardous and flammable materials, including chemicals and biological materials, and may also produce hazardous waste products. Even if we contract with third parties for the disposal of these materials and wastes, we cannot completely eliminate the risk of contamination or injury resulting from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties for failure to comply with such laws and regulations.

We maintain workers’ compensation insurance to cover us for costs and expenses that we may incur due to injuries to our employees resulting from the use of hazardous materials, but this insurance may not provide adequate coverage against potential liabilities. Moreover, we do not currently maintain insurance for environmental liability or toxic tort claims that may be asserted against us.

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations. Current or future environmental laws and regulations may impair our research, development or production efforts, which could adversely affect our business, financial condition, results of operations or prospects. In addition, failure to comply with these laws and regulations may result in substantial fines, penalties or other sanctions.

Our internal computer systems, or those of our contract research organizations or other contractors or consultants, may fail or suffer cybersecurity incidents, which could result in a material disruption of our product development programs, and could subject us to liability.

We utilize information technology systems and networks to process, transmit and store electronic information in connection with our business activities. As the use of digital technologies has increased, cyber incidents, including deliberate attacks and attempts to gain unauthorized access to computer systems and networks, have increased in frequency and sophistication. In particular, ransomware attacks, including those from organized criminal threat actors, nation-states and nation-state supported actors, are becoming increasingly prevalent and severe and can lead to significant interruptions, delays, or outages in our operations, loss of data, including sensitive customer information, loss of income, significant extra expenses to restore data or systems, reputational loss and the diversion of funds. To alleviate the negative impact of a ransomware attack, it may be preferable to make payments to the threat actor(s), but we may be unwilling or unable to do so, including, for example, if applicable laws or regulations prohibit such payments. Finally, developments in artificial intelligence and machine learning provide threat actors with the capability to use more sophisticated means to attack our systems and may exacerbate cybersecurity risk. These threats pose a risk to the security of our systems and networks and the confidentiality, availability and integrity of our data. There can be no assurance that we will be successful in preventing cyber-attacks or successfully mitigating their effects.

Despite the implementation of security measures, our internal computer systems and those of our contract research organizations and other contractors and consultants are vulnerable to damage or disruption from hacking, computer viruses, malware, including ransomware, software bugs, unauthorized access, natural disasters, terrorism, war, and telecommunication, equipment and electrical failures. We have measures in place that are designed to prevent, and if necessary, to detect and respond to such cybersecurity incidents and breaches of privacy and security mandates. Our measures to prevent, respond to, and minimize such risks may be unsuccessful. While we have not, to our knowledge, experienced any significant system failure, accident or material cybersecurity incident to date, if such an event were to occur and cause interruptions in our operations or the operations of those third parties with which we contract, it could result in a material disruption of our programs and our business operations, as well as our financial condition. For example, the loss of clinical trial data from completed or ongoing clinical trials for any of our current or future product candidates could result in delays in our development and regulatory approval efforts and significantly increase our costs to recover or reproduce the data. Such a loss could also expose us to regulatory enforcement, civil liability and reputational damage. To the extent that any disruption or cybersecurity incident results in a loss of or damage to our data or applications, or inappropriate disclosure or theft of confidential or proprietary information, in addition to incurring liability, the further development of any product candidates could be delayed or our competitive position could be compromised. Additionally, such disruptions or cybersecurity incidents could result in enforcement actions by U.S. or foreign regulatory authorities, regulatory penalties, and other legal liabilities such as but not limited to private litigation, the incurrence of significant remediation costs, disruptions to our development programs, business operations and collaborations, diversion of management efforts and damage to our reputation, all of which could harm our business and operations.

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Our actual or perceived failure to comply with data protection laws and regulations could lead to government enforcement actions, private litigation and/or adverse publicity and could negatively affect our business.

We are subject to domestic and international data protection laws and regulations that address privacy and data security and may affect our collection, use, storage, and transfer of personal information. The legislative and regulatory landscape for data protection continues to evolve, and in recent years there has been an increasing focus on privacy and data security issues with the potential to affect our business. In the United States, numerous federal and state laws and regulations, including state data breach notification laws, state health information privacy laws and federal and state consumer protection laws govern the collection, use, disclosure and protection of health-related and other personal information. Failure to comply with data protection laws and regulations, where applicable, could result in government enforcement actions, which could include civil or criminal penalties, private litigation and/or adverse publicity and could negatively affect our operating results and business. For example, California has enacted the California Consumer Privacy Act ("CCPA”), which went into effect in January of 2020. The CCPA gives California residents expanded rights to access and require deletion of their personal information, opt out of certain personal information sharing, and receive detailed information about how their personal information is used. The CCPA provides for civil penalties for violations, as well as a private right of action for data breaches that may increase data breach litigation. Although the CCPA includes exemptions for certain clinical trials data, and the federal Health Insurance Portability and Accountability Act of 1996 ("HIPAA”) protected health information, the law may increase our compliance costs and potential liability with respect to other personal information we collect about California residents. Additionally in 2020, California voters passed the California Privacy Rights Act ("CPRA”), which went into full effect on January 1, 2023. The CPRA significantly amends the CCPA, potentially resulting in further uncertainty, additional costs and expenses in an effort to comply and additional potential for harm and liability for failure to comply. Among other things, the CPRA established a new regulatory authority, the California Privacy Protection Agency, which is tasked with enacting new regulations under the CPRA and will have expanded enforcement authority. In addition to California, more U.S. states are enacting similar legislation, increasing compliance complexity and increasing risks of failures to comply. In 2023, comprehensive privacy laws in Virginia, Colorado, Connecticut, and Utah all took effect, and laws in Montana, Oregon, and Texas took effect in 2024. Laws in a number of other U.S. states took effect, or are set to take effect, in 2026, and beyond, and additional U.S. states have proposals under consideration, all of which are likely to increase our regulatory compliance costs and risks, exposure to regulatory enforcement action and other liabilities.

In addition, other federal and state laws establish additional requirements for protecting the privacy and security of health information that is not protected by HIPAA. For instance, Washington state passed the "My Health My Data” Act in 2024 to regulate "consumer health data,” which is defined as "personal information that is linked or reasonably linkable to a consumer and that identifies a consumer’s past, present, or future physical or mental health.” The "My Health My Data” Act provides exemptions for personal data used or shared in connection with certain research activities, including data subject to 45 C.F.R. Parts 46, 50 and 56. Notably, the "My Health My Data” Act contains a private right of action. In addition, Nevada recently enacted a consumer health data privacy bill, SB 370, which also took effect in 2024, and regulates "consumer health data.” SB 370 shares many similarities with Washington’s "My Health My Data” Act, and Connecticut recently amended its comprehensive privacy law to include heighted regulation of "consumer health data.” Additional states may adopt health-specific privacy laws that could impact our business activities and our collection and handling of health-related data.

Numerous other countries have, or are developing, laws governing the collection, use and transmission of personal information as well. For example, the European Parliament and the Council of the European Union adopted a comprehensive general data privacy framework called the General Data Protection Regulation ("GDPR”), which took effect in May 2018 and governs the collection and use of personal data in the European Union, including by companies outside of the European Union. The GDPR, which is wide-ranging in scope, imposes several requirements relating to the consent of the individuals to whom the personal data relates, the information provided to the individuals, the security and confidentiality of the personal data, data breach notification and the use of third-party processors in connection with the processing of the personal data. The GDPR also imposes strict rules on the transfer of personal data out of the European Union to the United States, enhances enforcement authority and imposes large penalties for noncompliance, including the potential for fines of up to €20 million or 4% of the annual global revenues of the infringer, whichever is greater.

The GDPR also confers a private right of action on data subjects and consumer associations to lodge complaints with supervisory authorities, seek judicial remedies, and obtain compensation for damages resulting from violations of the GDPR. Compliance with the GDPR has been and will continue to be a rigorous and time-intensive process that has increased and will continue to increase our cost of doing business or require us to change our business practices, and despite those efforts, there is a risk that we or our collaborators may be subject to fines and penalties, litigation and reputational harm in connection with any European activities, which could adversely affect our business, prospects, financial condition and results of operations.

Applicable data privacy and data protection laws may conflict with each other, and by complying with the laws or regulations of one jurisdiction, we may find that we are violating the laws or regulations of another jurisdiction. Despite our efforts, we may not have fully complied in the past and may not in the future. That could require us to incur significant expenses, which could significantly affect our business. Failure to comply with data protection laws may expose us to risk of enforcement actions taken by data protection

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authorities or other regulatory agencies, private rights of action in some jurisdictions, and potential significant penalties if we are found to be non-compliant. Furthermore, the number of government investigations related to data security incidents and privacy violations continue to increase and government investigations typically require significant resources and generate negative publicity, which could harm our business and reputation.

We or third parties upon whom we depend may be adversely affected by natural disasters and/or health epidemics, and our business, financial condition and results of operations could be adversely affected.

Natural disasters could severely disrupt our operations and have a material adverse effect on our business operations. If a natural disaster, health epidemic or other events beyond our control occurred that prevented us from using all or a significant portion of our office, that damaged critical infrastructure, such as the manufacturing facilities of our third-party contract manufacturers, or that otherwise disrupted operations, it may be difficult for us to continue our business for a substantial period of time.

Risks Related to Our Financial Position and Need for Additional Capital

We have not generated any revenue from the sale of our products, have a history of losses and expect to incur future losses. If we are unable to obtain additional capital, we may not be able to continue our operations on the scope or scale as currently conducted, and that could have a material adverse effect on our business, results of operations and financial condition.

We have not generated any revenue from the sale of our products and have incurred losses in most years since our inception in 2013. Our net loss was $9.6 million and $16.8 million for the three and six months ended June 30, 2026, respectively. While the FDA approved GSK’s NDA resubmission for Utebzi, we do not have any other product candidates approved for sale and we may never have another product candidate approved for commercialization. The success of Utebzi depends on GSK’s ability to commercialize the product.

In accordance with ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic 205-40), we have evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern within one year after the date that these consolidated financial statements are issued. Based on our current operating plan, we believe that our cash and cash equivalents as of June 30, 2026, together with and including the net proceeds from the royalty financing transaction that closed in July 2026, will be sufficient to fund our operating expenses and capital expenditure requirements into the second half of 2029. During this period, we are focused on advancing next-generation medicines in immunology and inflammation for patients with serious diseases and major treatment gaps. Beyond this point, or in the event we change our current operating plan, we will need additional funding, which we expect will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations or grant funding. If we are not able to secure adequate additional funding, we plan to make further reductions in spending. In that event, we may have to delay, scale back, or eliminate some or all of our planned development activities. The actions necessary to reduce spending under this plan at a level that mitigates the factors described above is not considered probable, as defined in the accounting standards and therefore, the full extent to which management may extend our funds through these actions may not be considered in management’s assessment of our ability to continue as a going concern.

We expect to continue to incur significant expenses and operating losses for the foreseeable future. If we are unable to achieve commercialization, revenue from product sales, and, ultimately, profitability, the market value of our common stock will likely decline.

We expect to continue to incur significant expenses and operating losses for the foreseeable future as we continue to advance our existing and future product candidates through preclinical and clinical development and marketing approval for such candidates whose clinical trials are successful. Our expenses will also increase substantially if and as we:

conduct clinical trials and studies of our existing or future product candidates;
continue to discover and develop additional product candidates;
establish manufacturing and supply chain capacity sufficient to provide commercial quantities of any product candidates for which we may obtain marketing approval;
maintain, expand and protect our intellectual property portfolio;
hire additional clinical, scientific and commercial personnel;
add operational, financial and management information systems and personnel, including personnel to support our product development and planned future commercialization efforts, face competing technological and market developments; and
acquire or in-license other product candidates and technologies.

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We currently have one product approved for sale and have historically invested a significant portion of our efforts and financial resources in the development of our product candidates, including tebipenem pivoxil, SPR206, and SPR720. Although we decided to cease further development of SPR206 and SPR720, our business remains heavily dependent on the successful commercialization of tebipenem pivoxil, the success of which depends on GSK’s ability to commercialize Utebzi, and the successful development, regulatory approval, and, if approved, commercialization of SP001 and any future product candidates. We cannot be certain that any product candidate will receive regulatory approval or will be successfully commercialized even if it receives regulatory approval.

If any of our current or future product candidates fail to demonstrate safety and efficacy in clinical trials, do not gain regulatory approval, or do not achieve market acceptance following regulatory approval and commercialization, we may never become profitable. Even if we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods. Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on our stockholders’ equity and working capital. If we are unable to achieve and sustain profitability, the market value of our common stock will likely decline.

Because of the numerous risks and uncertainties associated with developing biopharmaceutical products, we are unable to predict the extent of any future losses or when, if ever, we will become profitable. Our expenses would increase significantly if we are required by the FDA, or any comparable foreign regulatory authority to perform studies in addition to those currently expected, or if there are any delays in completing our clinical trials or the development of any of our current and future product candidates.

If we are unable to raise capital when needed, or do not receive payments from our collaboration partnership agreements or royalty financing agreements, it could limit our ability to support our operations.

Developing pharmaceutical products, including conducting preclinical studies and clinical trials, is a time-consuming, expensive and uncertain process that takes years to complete. We expect that our expenses will increase if and as we commence and advance additional preclinical studies and clinical trials for any future product candidates. If we obtain marketing approval for any product candidate, we expect to incur significant expenses related to development, product sales, marketing, distribution and manufacturing. Some of these expenses may be incurred in advance of marketing approval and could be substantial. Accordingly, we will be required to obtain further funding through public or private equity offerings, debt financings, royalty financing transactions, collaborations, licensing arrangements, government funding or other sources. Adequate additional financing may not be available to us on acceptable terms, or at all. Our failure to raise capital as and when needed would have a negative effect on our financial condition and our ability to pursue our business strategy.

Based on our current operating plan, we believe that our cash and cash equivalents as of June 30, 2026, together with and including the net proceeds from the royalty financing transaction that closed in July 2026, will be sufficient to fund our operating expenses and capital expenditure requirements into the second half of 2029. During this period, we are focused on advancing next-generation medicines in immunology and inflammation for patients with serious diseases and major treatment gaps. Beyond this point, or in the event we change our current operating plan, we will need additional funding to support our continuing operations. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of equity offerings, debt financings, government funding arrangements, collaborations, strategic alliances and marketing, distribution or licensing arrangements. If we are not able to secure adequate additional funding, we plan to make further reductions in spending. In that event, we may have to delay, scale back, or eliminate some or all of our planned development activities, including:

the timing, costs and results potential clinical trials for any of our existing and future product candidates;
the number and characteristics of product candidates that we pursue;
the outcome, timing and costs of seeking regulatory approvals;
the costs of commercialization activities for our existing and future product candidates if we receive marketing approval, including the costs and timing of establishing product sales, marketing, distribution and manufacturing capabilities;
the terms and timing of any future collaborations, licensing or other arrangements that we may establish;
the amount and timing of any payments we may be required to make, or that we may receive, in connection with the licensing, filing, prosecution, defense and enforcement of any patents or other intellectual property rights, including milestone and royalty payments and patent prosecution fees that we are obligated to pay pursuant to our license agreements;
the costs of preparing, filing and prosecuting patent applications, maintaining and protecting our intellectual property rights and defending against any intellectual property related claims;
the costs of our continued operation as a public company; and

 

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the extent to which we in-license or acquire other products and technologies.

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to any of our technologies or product candidates.

Unless and until we can generate a substantial amount of revenue from our existing and future product candidates, we expect to finance our future cash needs through public or private equity offerings, debt financings, royalty financing transactions, collaborations, licensing arrangements and government funding arrangements. In addition, we may seek additional capital due to favorable market conditions or strategic considerations, even if we believe that we have sufficient funds for our current or future operating plans.

We filed a universal shelf registration statement on Form S-3 (Registration No. 333-277998) with the SEC on March 15, 2024, which became effective on March 22, 2024 and pursuant to which we registered for sale up to $300.0 million of any combination of our common stock, preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that we may determine, including up to $75.0 million of our common stock available for issuance pursuant to the Controlled Equity Offering Sales Agreement (the "Sales Agreement”) with Cantor Fitzgerald & Co. ("Cantor”). Under the Sales Agreement, Cantor may sell shares of our common stock by any method permitted by law deemed to be an "at-the-market” offering as defined in Rule 415 of the Securities Act, subject to the terms of the Sales Agreement.

We may seek to raise additional capital at any time. To the extent that we raise additional capital through the sale of common stock, convertible securities or other equity securities, the ownership interest of our then existing stockholders may be materially diluted, and the terms of these securities could include liquidation or other preferences and anti-dilution protections that could adversely affect the rights of our stockholders. In addition, debt financing, if available, would result in increased fixed payment obligations and may involve agreements that include restrictive covenants that limit our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends, which could adversely affect our ability to conduct our business. In addition, securing additional financing would require a substantial amount of time and attention from our management and may divert a disproportionate amount of their attention away from day-to-day activities, which may adversely affect our management’s ability to oversee the development of our existing or future product candidates.

If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, or royalty financing transactions, we may have to relinquish valuable rights to our technologies, future revenue streams or product candidates or grant licenses on terms that may not be favorable to us.

We have a limited operating history and no history of commercializing pharmaceutical products, which may make it difficult to evaluate the prospects for our future viability.

Our operations to date have been limited to financing and staffing our company, and performing research and development activities to advance our existing or future product candidates. We have only recently demonstrated an ability to successfully obtain marketing approval, through the FDA approval of Utebzi in June 2026, and have not yet demonstrated an ability to successfully manufacture a commercial scale product, or arrange for a third party to do so on our behalf, or conduct sales and marketing activities necessary for successful product commercialization. Consequently, predictions about our future success or viability may not be as accurate as they could be if we had a longer operating history or a history of successfully developing and commercializing pharmaceutical products.

We expect our financial condition and operating results to continue to fluctuate significantly from quarter to quarter and year to year due to a variety of factors, many of which are beyond our control. Accordingly, stockholders should not rely upon the results of any quarterly or annual periods as indications of future operating performance

Our ability to use our net operating loss carryforwards may be limited.

As of December 31, 2025, we had U.S. federal, state and foreign net operating loss carryforwards ("NOLs”) of $226.1 million, $184.8 million and $4.7 million, respectively. $212.8 million of the federal NOLs can be carried forward indefinitely and $13.2 million of the federal NOLs begin to expire in 2034. The state NOLs begin to expire in 2035 and will expire at various dates through 2045. The foreign NOLs do not expire. As of December 31, 2025, we also had federal and state research and development tax credit carryforwards of $6.7 million and $1.7 million, respectively, and federal orphan drug tax credit carryforwards of $3.1 million, which may be available to offset future income tax liabilities. The federal and state research and development tax credits begin to expire in 2035 and the federal orphan drug credits begin to expire in 2044. Utilization of these NOLs depends on many factors, including our future income, which cannot be assured. Other than the NOLs that can be carried forward indefinitely, our NOLs could expire unused and be unavailable to offset our future income tax liabilities. In addition, under Section 382 of the Internal Revenue Code of 1986, as amended (the "Code") and corresponding provisions of state law, if a corporation undergoes an "ownership change,” which is generally defined as a greater than 50% change, by value, in its equity ownership by 5% stockholders over a three-year period, the corporation’s ability to use its pre-change NOLs to offset its post-change income may be limited. We recently completed a Section 382 study and concluded that we underwent several ownership changes as defined by the Code, the last of which occurred during the

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year ended December 31, 2018. Any NOL carryforwards that will expire prior to utilization have been removed from deferred tax assets, with a corresponding reduction of the valuation allowance. Future ownership changes, some of which may be beyond our control, may limit our ability to utilize our tax attributes.

Under current U.S. federal tax law, NOLs arising in tax years beginning after December 31, 2017 may be used to offset only 80% of taxable income (although such NOLs may be carried forward indefinitely).

Risks Related to Our Dependence on Third Parties

We may not achieve the milestones triggering payments to us, or may not receive royalty payments pursuant to, our existing or any future license and collaboration or royalty financing agreements with third parties.

We have and may continue to seek third-party collaborators for development and commercialization of certain of our existing or future product candidates. Currently we are party to license and collaboration agreements with third parties as described in Note 9, License, Collaboration and Service Agreements, and Note 12, Subsequent Events, to our condensed consolidated financial statements appearing elsewhere in this Quarterly Report on Form 10-Q. Our likely collaborators for any other marketing, distribution, development, licensing or broader collaboration arrangements we may pursue include large and mid-size pharmaceutical companies, regional and national pharmaceutical companies and biotechnology companies.

We may derive revenue from research and development fees, license fees, milestone payments and royalties under any collaborative arrangement into which we enter. Our ability to generate revenue from these arrangements will depend on our collaborators’ abilities to successfully perform the functions assigned to them in these arrangements and also the limitations of any royalty financing transaction we may have entered into. In addition, our collaborators may have the right to abandon research or development projects and terminate applicable agreements, including funding obligations, prior to or upon the expiration of the agreed upon terms. As a result, we can expect to relinquish some or all of the control over the future success of a product candidate that we license to a third party.

We face significant competition in seeking and obtaining appropriate collaborators. Collaborations involving any of our existing or future product candidates may pose a number of risks, including the following:

collaborators have significant discretion in determining the efforts and resources that they will apply to these collaborations;
collaborators may not perform their obligations as expected;
collaborators may not pursue development and commercialization of any of our current or future product candidates or may elect not to continue or renew development or commercialization programs based on clinical trial results, changes in the collaborators’ strategic focus or available funding or external factors, such as an acquisition, that divert resources or create competing priorities;
collaborators may not be able to develop, manufacture, market and sell any of our current or future product candidates and use our intellectual property without infringing or misappropriating the intellectual property and other proprietary rights of third parties;
collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new formulation of a product candidate for clinical testing;
product candidates discovered in collaboration with us may be viewed by our collaborators as competitive with their own product candidates or products, which may cause collaborators to cease to devote resources to the commercialization of any of our current or future product candidates;
a collaborator with marketing and distribution rights to one or more products may not commit sufficient resources to the marketing and distribution of such product or products;
disagreements with collaborators, including disagreements over proprietary rights, contract interpretation or the preferred course of development, might cause delays or termination of the research, development or commercialization of product candidates, might lead to additional responsibilities for us with respect to product candidates, or might result in litigation or arbitration, any of which would be time-consuming and expensive;
collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in such a way as to invite litigation that could jeopardize or invalidate our intellectual property or proprietary information or expose us to potential litigation;

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collaborators may infringe the intellectual property rights of third parties, which may expose us to litigation and potential liability; and
collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or commercialization of the applicable product candidates.

Collaboration agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all. If a collaborator of ours is involved in a business combination, it could decide to delay, diminish or terminate the development or commercialization of any product candidate licensed to it by us.

We may have to alter our development and commercialization plans if we are not able to establish collaborations.

We will require additional funds to complete the development and potential commercialization of our existing and future product candidates. For any of our current or future product candidates, we may decide to collaborate with pharmaceutical and biotechnology companies for the development and potential commercialization of those product candidates. Moreover, we intend to utilize a variety of types of collaboration arrangements for the potential commercialization of our existing or future product candidates outside the United States. Whether we reach a definitive agreement for a collaboration will depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a number of factors. Those factors may include:

the design or results of clinical trials;
the likelihood of approval by the FDA or comparable foreign regulatory authorities;
the potential market for the subject product candidate;
the costs and complexities of manufacturing and delivering such product candidate to patients;
the potential for competing products;
our patent position protecting the product candidate, including any uncertainty with respect to our ownership of our technology or our licensor’s ownership of technology we license from them, which can exist if there is a challenge to such ownership without regard to the merits of the challenge;
the need to seek licenses or sub-licenses to third-party intellectual property; and
industry and market conditions generally.

The collaborator may also consider alternative product candidates or technologies for similar indications that may be available for collaboration and whether such a collaboration could be more attractive than the one with us for our product candidate. We may also be restricted under future license agreements from entering into agreements on certain terms with potential collaborators. In addition, there have been a significant number of recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators.

If we are unable to reach agreements with suitable collaborators on a timely basis, on acceptable terms, or at all, we may have to curtail the development of a product candidate, reduce or delay its development program or one or more of our other development programs, delay its potential commercialization or reduce the scope of any sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense. If we elect to fund and undertake development or commercialization activities on our own, we may need to obtain additional expertise and additional capital, which may not be available to us on acceptable terms or at all. If we fail to enter into collaborations and do not have sufficient funds or expertise to undertake the necessary development and commercialization activities, we may not be able to further develop our existing and future product candidates or bring them to market and our business may be materially and adversely affected.

As part of our royalty financing transaction with HCRx, we transferred the GSK License Agreement and our rights thereunder, along with related intellectual property, to one of two newly formed special purpose subsidiaries of ours, and provided HCRx with a right of first recourse to such assets to satisfy our obligations to HCRx. As a result, if we are unable to satisfy our obligations under the royalty financing transaction, we could lose all retained rights to future royalty payments from HCRx and related assets, which could have a material adverse effect on our business, financial condition and stock price.

We and our affiliates have entered into a $105.0 million non-recourse non-dilutive royalty financing transaction with HCRx, pursuant to which HCRx will receive a portion of the future milestone and royalty payments due to us from GSK arising under the GSK License Agreement. As part of the royalty financing transaction, the parties entered into, among other agreements, the NPA for senior secured notes in an aggregate principal amount of $105.0 million, referred to herein as the Notes, the RPA and the Limited Guaranty.

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The royalty financing transaction creates obligations of the Company and our special purpose subsidiaries to make payments to HCRx from proceeds of the GSK License Agreement, which agreement provides GSK certain rights to develop and commercialize Utebzi. To the extent that the commercialization of Utebzi does not generate sufficient proceeds to satisfy the obligations to HCRx when due in accordance with the terms of the royalty financing transaction, HCRx will generally not have recourse to our assets unrelated to the Utebzi program. However, to the extent we are unable to pay the Notes and other obligations under the NPA in full when due, HCRx will have the right, as a secured creditor with a security interest in the assets related to the Utebzi program, to foreclose on and otherwise take control of the assets related to the Utebzi program, including our equity in the special purpose subsidiaries created to hold the assets related to the Utebzi program.

Additionally, in the case of certain defined breaches and defaults under the royalty financing transaction, HCRx may have recourse beyond the assets related to the Utebzi program, although in most instances our obligations in respect of such breaches and defaults are limited to actual damages, and such obligations are generally subject to a fixed cap. In the event that HCRx has recourse to our assets beyond those related to the Utebzi program, we may not have sufficient funds to satisfy our obligations to HCRx as and when those obligations become due and payable, which could have a material adverse effect on our business, financial condition and stock price.

We rely on third parties to conduct all of our nonclinical studies and all of our clinical trials. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may be unable to obtain regulatory approval for or commercialize any product candidates. If they do not perform satisfactorily, our business may be materially harmed.

We do not independently conduct nonclinical studies that comply with good laboratory practice ("GLP”) requirements. We also do not have the ability to independently conduct clinical trials of any product candidates. We rely on third parties, such as contract research organizations, clinical data management organizations, medical institutions and clinical investigators, to conduct clinical trials of our existing and future product candidates. Any of these third parties may terminate their engagements with us at any time. If we need to enter into alternative arrangements, it would delay our product development activities and increase our costs.

Our reliance on these third parties for clinical development activities limits our control over these activities but we remain responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards. For example, notwithstanding the obligations of a contract research organization for a trial of any product candidates, we remain responsible for ensuring that each of our clinical trials is conducted in accordance with the general investigational plan and protocols for the trial and applicable regulatory requirements. While we will have agreements governing their activities, we control only certain aspects of their activities and have limited influence over their actual performance. The third parties with whom we contract for execution of our GLP studies and our clinical trials play a significant role in the conduct of these studies and trials and the subsequent collection and analysis of data. Although we rely on these third parties to conduct our GLP-compliant nonclinical studies and clinical trials, we remain responsible for ensuring that each of our nonclinical studies and clinical trials are conducted in accordance with applicable laws and regulations, and our reliance on the CROs does not relieve us of our regulatory responsibilities. The FDA and regulatory authorities in other jurisdictions also require us to comply with standards, commonly referred to as GCPs for conducting, monitoring, recording and reporting the results of clinical trials to assure that data and reported results are accurate and that the trial subjects are adequately informed of the potential risks of participating in clinical trials. The FDA enforces these GCPs through periodic inspections of trial sponsors, principal investigators, clinical trial sites and institutional review boards. If we or our third-party contractors fail to comply with applicable GCP standards, the clinical data generated in our clinical trials may be deemed unreliable and the FDA may require us to perform additional clinical trials before approving any of our current and future product candidates, which would delay the regulatory approval process. We cannot make assurances that, upon inspection, the FDA will determine that any of our clinical trials comply with GCP. We are also required to register clinical trials and post the results of completed clinical trials on a government-sponsored database, ClinicalTrials.gov, within certain timeframes. Failure to do so can result in fines, adverse publicity and civil and criminal sanctions.

Furthermore, the third parties conducting clinical trials on our behalf are not our employees, and except for remedies available to us under our agreements with such contractors, we cannot control whether or not they devote sufficient time and resources to our ongoing development programs. These contractors may also have relationships with other commercial entities, including our competitors, for whom they may also be conducting clinical trials or other drug development activities, which could impede their ability to devote appropriate time to our clinical programs. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct our clinical trials in accordance with regulatory requirements or our stated protocols, we may not be able to obtain, or may be delayed in obtaining, marketing approvals for any of our current or future product candidates. If that occurs, we may not be able to, or may be delayed in our efforts to, successfully commercialize any of our current or future product candidates. In such an event, our financial results and the commercial prospects for any of our current or future product candidates could be harmed, our costs could increase and our ability to generate revenue could be delayed, impaired or foreclosed.

We also rely on other third parties to store and distribute drug supplies for our clinical trials. Any performance failure on the part of our distributors could delay clinical development or marketing approval of any of our current or future product candidates or commercialization of any resulting products, producing additional losses and depriving us of potential product revenue.

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We have historically contracted with third parties for the manufacture of clinical supplies of our current or future product candidates and expect to continue to do so in connection with any future clinical trials and commercialization of any potential product candidates. This reliance on third parties increases the risk that we will not have sufficient quantities of our existing and future product candidates or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

We do not currently have nor do we plan to build the internal infrastructure or capability to manufacture our existing or future product candidates for use in the conduct of our preclinical research, our clinical trials or for commercial supply. We have historically relied on and expect to continue to rely on third-party contract manufacturers to manufacture supplies of our existing or future product candidates, and we expect to rely on third-party contract manufacturers to manufacture commercial quantities of any product candidate that we commercialize following approval for marketing by applicable regulatory authorities, if any. Reliance on third-party manufacturers entails risks, including:

manufacturing delays if our third-party manufacturers give greater priority to the supply of other products over our current or future product candidates or otherwise do not satisfactorily perform according to the terms of the agreement between us;
the possible termination or nonrenewal of the agreement by the third-party at a time that is costly or inconvenient for us;
the possible breach of the manufacturing agreement by the third-party;
the failure of the third-party manufacturer to comply with applicable regulatory requirements; and
the possible misappropriation of our proprietary information, including our trade secrets and know-how.

We have historically relied on a small number of third-party contract manufacturers and suppliers for all of our required raw materials, drug substance and finished product for our preclinical research and clinical trials. We do not have long-term agreements with any of these third parties. We also do not have any current contractual relationships for the manufacture of commercial supplies of any existing or future product candidates. If any of our existing manufacturers should become unavailable to us for any reason, we may incur delays in identifying or qualifying replacements.

In addition, because some of our manufacturers may have manufacturing facilities outside of the United States, their ability to provide us with adequate supplies of high-quality products on a timely and cost-efficient basis is subject to a number of additional risks and uncertainties, including political, social and economic instability and factors that could impact the shipment of supplies. If our manufacturers are unable to provide us with adequate supplies of high-quality products on a timely and cost-efficient basis, our operations would be disrupted and our net revenue and profitability would suffer.

Further, if our third-party contract manufacturers are based in Asia we may be subject to various supply chain disruptions. These supply chain disruptions have increased the price of certain materials due to the significant increase in costs of raw materials and shipping costs. Our ability to produce and timely deliver our products may be materially impacted in the future if these supply chain disruptions continue or worsen.

Moreover, a major catastrophe, such as an earthquake or other natural disaster, labor strike, or work stoppage at any of our manufacturing facilities, or a manufacturing facility of our suppliers or customers, could result in a prolonged interruption of our business. A disruption resulting from any one of these events could cause significant delays in shipments of our products and the loss of revenue and customers, which could have a material adverse effect on our financial position, results of operations, and cash flows.

If any existing or future product candidates are approved by any regulatory agency, we intend to enter into agreements with third-party contract manufacturers for the commercial production of those products. This process is difficult and time consuming and we may face competition for access to manufacturing facilities as there are a limited number of contract manufacturers operating under current good manufacturing practices ("cGMPs”) that are capable of manufacturing our existing or future product candidates. Consequently, we may not be able to reach agreement with third-party manufacturers on satisfactory terms, which could delay our commercialization.

Third-party manufacturers are required to comply with cGMPs and similar regulatory requirements outside the United States. Facilities used by our third-party manufacturers must be approved by the FDA after we submit an NDA and before potential approval of the product candidate. Similar regulations apply to manufacturers of our existing or future product candidates for use or sale in foreign countries. We do not control the manufacturing process and are completely dependent on our third-party manufacturers for compliance with the applicable regulatory requirements for the manufacture of our existing or future product candidates. The inability or failure of our manufacturers to successfully manufacture material that conforms to the strict regulatory requirements of the FDA and any applicable foreign regulatory authority, may require us to find alternative manufacturing facilities, which could result in delays in obtaining approval for the applicable product candidate. In addition, our manufacturers are subject to ongoing periodic unannounced inspections by the FDA and corresponding state and foreign agencies for compliance with cGMPs and similar regulatory

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requirements. Failure by any of our manufacturers to comply with applicable cGMPs or other regulatory requirements could result in sanctions being imposed on us, including fines, injunctions, civil penalties, delays, suspensions or withdrawals of approvals, operating restrictions, interruptions in supply and criminal prosecutions, any of which could significantly and adversely affect supplies of our existing or future product candidates and have a material adverse effect on our business, financial condition and results of operations.

Our current and anticipated future dependence upon others for the manufacture of our existing or future product candidates and potential product candidates may adversely affect our future profit margins and our ability to commercialize any products for which we receive marketing approval on a timely and competitive basis.

If we fail to comply with our obligations in the agreements under which we in-license or acquire development or commercialization rights to products, technology or data from or to third parties, we could lose such rights that are important to our business.

We are a party to agreements with Meiji and GSK for tebipenem pivoxil and Innovent for SP001, and we may enter into additional agreements, including license agreements, with other parties in the future that impose diligence, development and commercialization timelines, milestone payments, royalties, insurance and other obligations on us.

For example, the Meiji License gives us rights outside of the Meiji Territory to develop, manufacture, and commercialize tebipenem pivoxil as well as the right to use, cross-reference, file or incorporate by reference any information and relevant Meiji regulatory documentation to support any regulatory filings outside of the Meiji Territory. In addition, we have the right to develop, manufacture and have manufactured tebipenem pivoxil in the Meiji Territory solely for the purpose of furthering development, manufacturing and commercialization of tebipenem pivoxil outside of the Meiji Territory. In exchange for those rights, we are obligated to satisfy diligence requirements, including using commercially reasonable efforts to develop and commercialize tebipenem pivoxil and to implement a specified development plan, meeting specified development milestones and providing an update on progress on an annual basis. The Meiji License requires us to pay future milestone payments of up to $1.0 million upon the achievement of specified regulatory milestones and royalties of 1% of net sales on a product-by-product and country-by-country basis.

In addition, pursuant to our GSK License Agreement, we granted GSK an exclusive royalty-bearing license, with the right to grant sublicenses, under our intellectual property and regulatory documents and a sublicense under certain intellectual property of Meiji and Meiji’s regulatory documents to develop, manufacture and commercialize the GSK Licensed Products in the GSK Territory. Under the terms of the GSK License Agreement, we received an upfront payment of $66.0 million for GSK to secure rights to tebipenem pivoxil and tebipenem pivoxil, a $30.0 million milestone payment upon achievement of a development milestone in the third quarter of 2023, and were entitled to receive a $95.0 million development milestone payment payable in four equal semi-annual installments, of which we received $23.8 million in each of the first quarter of 2024, the third quarter of 2024, the first quarter of 2025 and the third quarter of 2025 and a $25.0 million milestone for GSK’s submission of an NDA with the FDA for tebipenem pivoxil, which was received in February 2026. Remaining potential payments under the GSK License Agreement are milestone based and are (i) up to $101.0 million in commercial milestone payments, and (ii) up to $225.0 million in sales milestone payments. In addition to the milestones described above, GSK is obligated to pay royalties to us on annual net sales of GSK Licensed Products in the GSK Territory. Such royalties are 1% for annual sales up to $750.0 million each year and range from high single-digit percentages on annual net sales above $750.0 million each year to low double-digit percentages on annual net sales above $1,000.0 million each year.

We were responsible for the execution and costs of the follow-up Phase 3 clinical trial of tebipenem pivoxil. GSK is responsible for the execution and costs of additional further development, including commercialization activities for tebipenem pivoxil in the balance of the GSK Territory outside of the United States. Additionally, we were responsible for providing and paying for the clinical supply of tebipenem pivoxil while GSK will be responsible for the costs of the commercial supply of tebipenem pivoxil.

Further, the Innovent Agreement gives us exclusive rights, even as to Innovent, to research, develop, manufacture, and commercialize SP001 and certain backup and derivative monoclonal antibodies targeting CD40L worldwide, excluding the Innovent Territory, subject to Innovent's right to conduct certain research, non-clinical development and manufacturing activities in the Innovent Territory. In addition, we have a non-exclusive right to research, non-clinically develop and manufacture SP001 in the Innovent Territory in connection with our exploitation of those compounds and products in the Licensed Territory. In exchange for those rights, we are obligated to use commercially reasonable efforts to develop, obtain regulatory approval for, and commercialize SP001 in at least one indication in the United States and any one of France, Germany, Italy, Spain, the United Kingdom or Japan, and to file an IND for SP001 in the United States within 12 months of the effective date, subject to specified extensions. The Innovent Agreement required us to pay Innovent a $35.0 million upfront payment, future milestone payments of up to approximately $1.05 billion upon the achievement of certain development, regulatory and commercial milestones, and tiered royalties ranging from a high single-digit to a mid-teen-digit percentage of annual net sales on a product-by-product and country-by-country basis.

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If we fail to comply with our obligations to Meiji, GSK, Innovent, or any of our other partners, our counterparties may have the right to terminate these agreements, in which event we might not be able to develop, manufacture or market any product candidate that is covered by these agreements, which could materially adversely affect the value of the product candidate being developed under any such agreement. Termination of these agreements or reduction or elimination of our rights under these agreements may result in our having to negotiate new or reinstated agreements with less favorable terms or cause us to lose our rights under these agreements, including our rights to important intellectual property or technology.

Risks Related to Our Intellectual Property

If we are unable to obtain and maintain sufficient patent protection for our technology or our existing or future product candidates, or if the scope of the patent protection is not sufficiently broad, our competitors could develop and commercialize technology and products similar or identical to ours, and our ability to successfully commercialize our technology and product candidates may be adversely affected.

Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our proprietary chemistry technology and product candidates. If we do not adequately protect our intellectual property, competitors may be able to use our technologies and erode or negate any competitive advantage that we may have, which could harm our business and ability to achieve profitability. To protect our proprietary position, we file patent applications in the United States and abroad related to our novel technologies and product candidates that are important to our business. The patent application and approval process is expensive and time-consuming. We may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. We may also fail to identify patentable aspects of our research and development before it is too late to obtain patent protection.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain. No consistent policy regarding the breadth of claims allowed in biotechnology and pharmaceutical patents has emerged to date in the United States or in many foreign jurisdictions. In addition, the determination of patent rights with respect to pharmaceutical compounds and technologies commonly involves complex legal and factual questions, which has in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly uncertain. Furthermore, changes in patent laws in the United States, including those made by the America Invents Act of 2011, may affect the scope, strength and enforceability of our patent rights or the nature of proceedings which may be brought by us related to our patent rights.

Our pending and future patent applications may not result in patents being issued which protect our technology or product candidates, in whole or in part, or which effectively prevent others from commercializing competitive technologies and products. Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of our patent protection.

The laws of foreign countries may not protect our rights to the same extent or in the same manner as the laws of the United States. For example, in the United States, there is an exception for one’s own publication of an invention prior to filing a patent application for the invention. Most other countries have no such exception and any publication prior to filing is an absolute bar to patentability. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Therefore, we cannot be certain that we were the first to make the inventions claimed in our patents or pending patent applications, or that we were the first to file for patent protection of such inventions. As a result of the America Invents Act of 2011, the United States transitioned to a first-inventor-to-file system in March 2013, under which, assuming the other requirements for patentability are met, the first inventor to file a patent application is entitled to the patent. However, as a result of the lag in the publication of patent applications following filing in the United States, we are still not be able to be certain upon filing that we are the first to file for patent protection for any invention. Moreover, we may be subject to a third-party pre-issuance submission of prior art to the U.S. Patent and Trademark Office ("USPTO”) or become involved in opposition, derivation, reexamination, inter partes review or interference proceedings, in the United States or elsewhere, challenging our patent rights or the patent rights of others. An adverse determination in any such submission, proceeding or litigation could reduce the scope of, or invalidate, our patent rights, allow third parties to commercialize our technology or product candidates and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights.

Due to the war in Ukraine and sanctions between the United States and Russia, patents and patent applications in Russia, the Eurasian Patent Organization ("EAPO”) and Ukraine currently have an uncertain fate. Unless the conflict with Ukraine ends quickly it is unlikely our Russian and EAPO patent and patent applications will remain in effect. Ukraine is currently under martial law and not processing patent applications. It is expected all patent deadlines in Ukraine will be extended.

Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors from competing with us or otherwise provide us with any competitive advantage. Our competitors

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may be able to circumvent our owned or licensed patents by developing similar or alternative technologies or products in a non-infringing manner. Our competitors may seek to market generic versions of any approved products by submitting Abbreviated New Drug Applications ("ANDAs”) to the FDA in which they claim that patents owned or licensed by us are invalid, unenforceable and/or not infringed. Alternatively, our competitors may seek approval to market their own products similar to or otherwise competitive with our products. In these circumstances, we may need to defend and/or assert our patents, including by filing lawsuits alleging patent infringement. In any of these types of proceedings, a court or other agency with jurisdiction may find our patents invalid and/or unenforceable. Even if we have valid and enforceable patents, these patents still may not provide protection against competing products or processes sufficient to achieve our business objectives.

The issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and our owned and licensed patents may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in loss of exclusivity or freedom to operate or in patent claims being narrowed, invalidated or held unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and products. In addition, given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized.

We may become involved in lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time consuming and unsuccessful.

Competitors may infringe our patents, trademarks, copyrights or other intellectual property, or those of our licensors. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be expensive and time consuming and divert the time and attention of our management and scientific personnel. Any claims we assert against perceived infringers could provoke these parties to assert counterclaims against us alleging that we infringe their patents. In addition, in a patent infringement proceeding, there is a risk that a court will decide that a patent of ours is invalid or unenforceable, in whole or in part, and that we do not have the right to stop the other party from using the invention at issue. There is also a risk that, even if the validity of such patents is upheld, the court will construe the patent’s claims narrowly or decide that we do not have the right to stop the other party from using the invention at issue on the grounds that our patents do not cover the invention. An adverse outcome in a litigation or proceeding involving our patents could limit our ability to assert our patents against those parties or other competitors, and may curtail or preclude our ability to exclude third parties from making and selling similar or competitive products. Any of these occurrences could adversely affect our competitive business position, business prospects and financial condition. Similarly, if we assert trademark infringement claims, a court may determine that the marks we have asserted are invalid or unenforceable, or that the party against whom we have asserted trademark infringement has superior rights to the marks in question. In this case, we could ultimately be forced to cease use of such trademarks.

In any infringement litigation, any award of monetary damages we receive may not be commercially valuable. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during litigation. Moreover, there can be no assurance that we will have sufficient financial or other resources to file and pursue such infringement claims, which typically last for years before they are concluded. Even if we ultimately prevail in such claims, the monetary cost of such litigation and the diversion of the attention of our management and scientific personnel could outweigh any benefit we receive as a result of the proceedings.

If we are sued for infringing intellectual property rights of third parties, or otherwise become involved in disputes regarding our intellectual property rights, such litigation could be costly and time consuming and could prevent or delay us from developing or commercializing our existing or future product candidates.

Our commercial success depends, in part, on our ability to develop, manufacture, market and sell our existing or future product candidates and use our proprietary chemistry technology without infringing the intellectual property and other proprietary rights of third parties. Numerous third-party U.S. and non-U.S. issued patents and pending applications exist in the area of antibacterial treatment, including compounds, formulations, treatment methods and synthetic processes that may be applied towards the synthesis of antibiotics. If any of their patents or patent applications cover our existing or future product candidates or technologies, we may not be free to manufacture or market our existing or future product candidates as planned.

There is a substantial amount of intellectual property litigation in the biotechnology and pharmaceutical industries, and we may become party to, or threatened with, litigation or other adversarial proceedings regarding intellectual property rights with respect to our technology or product candidates, including interference proceedings before the USPTO. Intellectual property disputes arise in a number of areas including with respect to patents, use of other proprietary rights and the contractual terms of license arrangements. Third parties may assert claims against us based on existing or future intellectual property rights. The outcome of intellectual property litigation is subject to uncertainties that cannot be adequately quantified in advance. With respect to our Meiji License of certain know-how and regulatory documents concerning tebipenem pivoxil, we are neither a party to, nor an express third-party beneficiary

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of, the letter agreements, which were signed in January 2017 and in February 2022, between Meiji and Global Pharma consenting to Meiji’s arrangements with us. As such, if any dispute among the parties were to occur, our direct enforcement rights with respect to the letter agreements may be limited or uncertain.

If we are found to infringe a third party’s intellectual property rights, we or our third-party collaborators could be forced, including by court order, to cease developing, manufacturing or commercializing the infringing product candidate or product. Alternatively, we or they may be required to obtain a license from such third party in order to use the infringing technology and continue developing, manufacturing or marketing the infringing product candidate. However, we or such collaborators may not be able to obtain any required license on commercially reasonable terms or at all. Even if we were able to obtain a license, it could be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. In addition, we could be found liable for monetary damages, including treble damages and attorneys’ fees if we are found to have willfully infringed a patent. A finding of infringement could prevent us from commercializing our existing or future product candidates or force us to cease some of our business operations, which could materially harm our business. Claims that we or our third-party collaborators have misappropriated the intellectual property, confidential information or trade secrets of third parties could have a similar negative effect on our business.

We may be subject to claims that we or our employees, consultants or contractors have misappropriated the intellectual property of a third party, or claims asserting ownership of what we regard as our own intellectual property.

Many of our employees, consultants and contractors are currently, or were previously, employed at universities or other biotechnology or pharmaceutical companies, including our competitors or potential competitors. Although we try to ensure that these individuals do not use the intellectual property and other proprietary information or know-how of others in their work for us, we may be subject to claims that we or these individuals have used or disclosed such intellectual property or other proprietary information. Litigation may be necessary to defend against these claims.

In addition, while we typically require our employees, consultants and contractors who may be involved in the development of intellectual property to execute agreements assigning such intellectual property to us, we may be unsuccessful in executing such an agreement with each party who in fact develops intellectual property that we regard as our own. To the extent that we fail to obtain such assignments or such assignments are breached, we may be forced to bring claims against third parties, or defend claims they may bring against us, to determine the ownership of what we regard as our intellectual property. If we fail in prosecuting or defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in prosecuting or defending against such claims, litigation could result in substantial costs and be a distraction to our management and scientific personnel.

If we are unable to protect the confidentiality of our trade secrets, the value of our technology could be materially adversely affected and our business would be harmed.

In addition to seeking patents for some of our technology and products, we also rely on trade secrets, including unpatented know-how, technology and other proprietary information, in seeking to develop and maintain a competitive position. We seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to them, such as our consultants, independent contractors, advisors, corporate collaborators, outside scientific collaborators, contract manufacturers, suppliers and other third parties. We, as well as our licensors, also enter into confidentiality and invention or patent assignment agreements with employees and certain consultants. Any party with whom we have executed such an agreement may breach that agreement and disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, if any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent such third party, or those to whom they communicate such technology or information, from using that technology or information to compete with us. If any of our trade secrets were to be disclosed to or independently developed by a competitor, our business and competitive position could be harmed.

We have registered trademarks and pending trademark applications. Failure to enforce our registered marks or secure registration of our pending trademark applications could adversely affect our business.

We have registered our trademarks for our name and logo in the United States and other countries and have a number of pending trademark applications in the United States and other countries. As of June 30, 2026, we have two registered U.S. trademarks, 23 registered foreign trademarks, and no pending foreign trademark applications. If our registered trademarks are invalidated, we may be unable to exclusively use our name or logo in certain jurisdictions or may need to change our name or logo in certain jurisdictions, which could affect our business. If we do not secure registrations for our pending trademark applications, we may encounter more difficulty in enforcing them against third parties, which could adversely affect our business.

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We have applied to register our product candidate name as a trademark in the United States, where it has been allowed for registration, and have applied to register the mark in three foreign jurisdictions. We have also applied to register additional product candidate names as trademarks in the United States. When we file trademark applications for our existing or future product candidates, those applications may not be allowed for registration, and registered trademarks may not be obtained, maintained, or enforced. During trademark registration proceedings in the United States and foreign jurisdictions, we may receive rejections. We are given an opportunity to respond to those rejections, but we may not be able to overcome such rejections. In addition, in the USPTO and in comparable agencies in many foreign jurisdictions, third parties are given an opportunity to oppose pending trademark applications and to seek to cancel registered trademarks. Opposition or cancellation proceedings may be filed against our trademarks, and our trademarks may not survive such proceedings.

In addition, any proprietary name we propose to use with any product candidate in the United States must be approved by the FDA, regardless of whether we have registered it, or applied to register it, as a trademark. The FDA typically conducts a review of proposed product names, including an evaluation of potential for confusion with other product names. If the FDA objects to any of our proposed proprietary product names, we may be required to expend significant additional resources in an effort to identify a suitable proprietary product name that would qualify under applicable trademark laws, not infringe the existing rights of third parties and be acceptable to the FDA.

Risks Related to Regulatory Approval and Other Legal Compliance Matters

If we or our collaboration partners are not able to obtain, or if there are delays in obtaining, required regulatory approvals, we will not be able to commercialize our existing and future product candidates, and our ability to generate revenue will be materially impaired.

Our existing or future product candidates and the activities associated with their development and commercialization, including their design, testing, manufacture, safety, efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale and distribution, are subject to comprehensive regulation by the FDA and other regulatory agencies in the United States and by comparable foreign regulatory authorities, with regulations differing from country to country. Failure to obtain marketing approval for a product candidate will prevent us from commercializing the product candidate.

We have only limited experience in filing and supporting the applications necessary to gain marketing approvals and have relied on third-party contract research organizations to assist us in this process.

The time required to obtain approval, if any, by the FDA and comparable foreign authorities is unpredictable but typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations, or the type and amount of clinical data necessary to gain approval may change during the course of a product candidate’s clinical development and may vary among jurisdictions. We have not obtained regulatory approval for any product candidate and it is possible that none of our existing or future product candidates we seek to develop in the future will ever obtain regulatory approval. Neither we nor any future collaborators are permitted to market any existing or future product candidates in the United States until we or they receive regulatory approval of an NDA from the FDA.

In order to obtain approval to commercialize a product candidate in the United States or abroad, we or our collaborators must demonstrate to the satisfaction of the FDA or foreign regulatory agencies, that such product candidates are safe and effective for their intended uses. Results from nonclinical studies and clinical trials can be interpreted in different ways. Even if we believe that the nonclinical or clinical data for any of our current or future product candidates are promising, such data may not be sufficient to support approval by the FDA and other regulatory authorities. The FDA may also require us to conduct additional nonclinical studies or clinical trials for any of our curren or future product candidates either prior to or post-approval, and it may otherwise object to elements of our clinical development program.

An NDA must include extensive preclinical and clinical data and supporting information to establish the product candidate’s safety and efficacy for each desired indication. The NDA must also include significant information regarding the chemistry, manufacturing and controls for the product candidate. Foreign regulatory authorities have differing requirements for approval of drugs with which we must comply with prior to marketing. Obtaining marketing approval for marketing of a product candidate in one country does not ensure that we will be able to obtain marketing approval in other countries, but the failure to obtain marketing approval in one jurisdiction could negatively affect our ability to obtain marketing approval in other jurisdictions. The FDA or any foreign regulatory bodies can delay, limit or deny approval of any of our current or future product candidates or require us to conduct additional nonclinical or clinical testing or abandon a program for many reasons, including:

the FDA or the applicable foreign regulatory agency’s disagreement with the design or implementation of our clinical trials;
negative or ambiguous results from our clinical trials or results that may not meet the level of statistical significance required by the FDA or comparable foreign regulatory agencies for approval;

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serious and unexpected drug-related side effects experienced by participants in our clinical trials or by individuals using drugs similar to any of our current or future product candidates;
our inability to demonstrate to the satisfaction of the FDA or the applicable foreign regulatory body that any of our current or future product candidates are safe and effective for the proposed indication;
the FDA’s or the applicable foreign regulatory agency’s disagreement with the interpretation of data from nonclinical studies or clinical trials;
our inability to demonstrate the clinical and other benefits of any of our current or future product candidates outweigh any safety or other perceived risks;
the FDA’s or the applicable foreign regulatory agency’s requirement for additional nonclinical studies or clinical trials;
the FDA’s or the applicable foreign regulatory agency’s disagreement regarding the formulation, labeling and/or the specifications for any of our current or future product candidates; or
the potential for approval policies or regulations of the FDA or the applicable foreign regulatory agencies to significantly change in a manner rendering our clinical data insufficient for approval.

Of the large number of drugs in development, only a small percentage complete the FDA or foreign regulatory approval processes and are successfully commercialized. The lengthy review process as well as the unpredictability of future clinical trial results may result in our failing to obtain regulatory approval, which would significantly harm our business, financial condition, results of operations and prospects.

Even if we eventually receive approval of an NDA or foreign marketing application for any of our current or future product candidates, the FDA or the applicable foreign regulatory agency may grant approval contingent on the performance of costly additional clinical trials, often referred to as Phase 4 clinical trials, and the FDA may require the implementation of a REMS which may be required to ensure safe use of the drug after approval. The FDA or the applicable foreign regulatory agency also may approve a product candidate for a more limited indication or patient population than we originally requested, and the FDA or applicable foreign regulatory agency may not approve the labeling that we believe is necessary or desirable for the successful commercialization of a product candidate. Any delay in obtaining, or inability to obtain, applicable regulatory approval would delay or prevent commercialization of that product candidate and would materially adversely impact our business and prospects.

We may seek orphan drug designation for one or more of our future product candidates. We may not be able to obtain or maintain orphan drug designations for any product candidates, and we may be unable to take advantage of the benefits associated with orphan drug designation, including the potential for market exclusivity.

Regulatory authorities in some jurisdictions, including the United States, may designate drugs for relatively small patient populations as orphan drugs. Under the Orphan Drug Act of 1983 (the "Orphan Drug Act”), the FDA may designate a product as an orphan product if it is intended to treat a rare disease or condition, which is generally defined as a patient population of fewer than 200,000 individuals in the United States, or a patient population of greater than 200,000 individuals in the United States, but for which there is no reasonable expectation that the cost of developing the drug will be recovered from sales in the United States. There can be no assurance that the FDA will grant orphan designation for any indication for which we apply.

In the United States, orphan designation entitles a party to financial incentives such as opportunities for grant funding towards clinical trial costs, tax advantages and user-fee waivers. In addition, if a product candidate that has orphan drug designation subsequently receives the first FDA approval for the disease for which it has such designation, it is entitled to orphan drug exclusivity, which means that the FDA may not approve any other applications, including an NDA, to market the same drug for the same indication for seven years, except in limited circumstances, such as a showing of clinical superiority to the product with orphan drug exclusivity or where the manufacturer is unable to assure sufficient product quantity.

Even though we may seek orphan drug designation for other product candidates in the future, there is no assurance that we or any third party partner we may have in the future will obtain orphan drug designation and/or be the first to obtain marketing approval for any particular rare indication. Further, even if we obtain orphan drug designation for other product candidates, such designation may not effectively protect us from competition because different drugs can be approved for the same condition and the same drug can be approved for different conditions and potentially used off-label in the orphan indication. Even after an orphan drug is approved, the FDA can subsequently approve a competing drug for the same condition for several reasons, including, if the FDA concludes that the later drug is safer or more effective or makes a major contribution to patient care. Orphan drug designation neither shortens the development time or regulatory review time of a drug, nor gives the drug any advantage in the regulatory review or approval process.

The FDA and the U.S. Congress may further reevaluate and revise the Orphan Drug Act and its regulations and policies. For example, in September 2021, the Court of Appeals for the Eleventh Circuit held that, for the purpose of determining the scope of

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orphan drug exclusivity, the term "same disease or condition” means the designated "rare disease or condition” and not the "indication or use” for which the product is approved. Subsequently, in another case, a federal district court in Washington, D.C. followed the reasoning of the Eleventh Circuit decision and that decision was appealed to the U.S. Court of Appeals for the D.C. Circuit. On February 3, 2026, the Consolidated Appropriations Act of 2026 was enacted into law. It overruled these court decisions and codified the FDA’s longstanding interpretation of the scope of orphan drug exclusivity to apply to "the same drug for the same approved use or indication within such [designated] rare disease or condition.” This change, which applies retroactively, expressly authorizes the FDA to approve multiple versions of the same orphan drug for different sub-indications and subpopulations, such as adult and pediatric patients or multiple variations of the same disease that are caused by different genetic variants.

If approved for commercial marketing in the United States, Utebzi our existing or future product candidates may face generic competition sooner than anticipated.

 

Utebzi, and any current or future product candidate for which we achieve regulatory approval, may face competition from generic products earlier or more aggressively than anticipated, depending upon how well our future products perform in the U.S. prescription drug market. In addition to creating the 505(b)(2) NDA pathway, the Hatch-Waxman Amendments to the FDCA authorized the FDA to approve generic drugs that are the same as drugs previously approved for marketing under the NDA provisions of the statute pursuant to ANDAs. An ANDA relies on the preclinical and clinical testing conducted for a previously approved reference listed drug ("RLD”) and must demonstrate to the FDA that the generic drug product is identical to the RLD with respect to the active ingredients, the route of administration, the dosage form, and the strength of the drug and also that it is "bioequivalent” to the RLD. The FDA is prohibited by statute from approving an ANDA when certain marketing or data exclusivity protections apply to the RLD.

 

In June 2026, the FDA approved GSK’s NDA resubmission for Utebzi. This exclusivity period would block FDA from approving either a subsequent ANDA or 505(b)(2) NDA that references our future NDA, if approved. The qualified infectious disease product designation granted by FDA to this drug product and indication also make it eligible for a further five-year extension of that Hatch-Waxman exclusivity. We cannot predict the interest of potential generic competitors in the future market for such an approved treatment for cUTI, whether someone will attempt to invalidate our period of exclusivity or otherwise force the FDA to take other actions, or how quickly others may seek to come to market with competing products after the applicable exclusivity period ends. Future product candidates may also receive marketing exclusivity under the FDCA after approval that may similarly be subject to challenge or uncertainty

If we or our partners are unable to obtain marketing approval in international jurisdictions, we will not be able to market our existing or future product candidates abroad.

In order to market and sell our existing or future product candidates in the European Union and many other jurisdictions, we or our partners must obtain separate marketing approvals and comply with numerous and varying regulatory requirements. Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one regulatory authority outside the United States does not ensure approval by regulatory authorities in other countries or jurisdictions or by the FDA. The approval procedure varies among countries and can involve additional testing. In addition, clinical trials conducted in one country may not be accepted by regulatory authorities in other countries. Moreover, the time required to obtain approval from regulatory authorities in other countries may differ substantially from that required to obtain FDA approval. The regulatory approval process outside the United States generally includes all of the risks associated with obtaining FDA approval. In addition, in many countries outside the United States, it is required that the product be approved for reimbursement before the product can be approved for sale in that country. We or our partners may not obtain approvals from regulatory authorities outside the United States on a timely basis or at all.

In addition, the EU pharmaceutical legislation is currently undergoing a complete review process, in the context of the Pharmaceutical Strategy for Europe initiative, launched by the European Commission in November 2020. The European Commission’s proposal for revision of several legislative instruments related to medicinal products, which may reduce the duration of regulatory data protection and exclusivity periods for orphan drugs, and revise the eligibility for expedited pathways in addition to other changes, was published on April 26, 2023. On June 4, 2025, after almost two years of negotiations among the EU Member States, the Council of the EU adopted its position on the proposed overhaul of the EU general pharmaceutical legislative framework, which is known as the new Pharma Package. On December 11, 2025, the European Parliament and European Council reached a provisional political agreement on the legislation. The revisions may have a significant impact on the pharmaceutical industry and our business. The new Pharma Package would, among other things, set a baseline period of eight years of data exclusivity and one year of market exclusivity with possible extensions for new indications up to a maximum of 11 years total. The new framework is expected to be adopted by late-2026 and there will likely be a transition period of 24 months, with the changes taking effect in mid-2028.

Additionally, we could face heightened risks with respect to obtaining marketing authorization in the United Kingdom as a result of the withdrawal of the United Kingdom from the EU, commonly referred to as Brexit. The United Kingdom is no longer part

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of the European Single Market and EU Customs Union. As of January 1, 2025, the Medicines and Healthcare Products Regulatory Agency ("MHRA”) is responsible for approving all medicinal products destined for the U.K. market (i.e., Great Britain and Northern Ireland). On April 28, 2025, the U.K. Parliament adopted amendments to improve and strengthen the United Kingdom’s clinical trials regulatory regime; they will take effect on April 28, 2026. These changes were needed since the current U.K. requirements are based upon the now-repealed EU Clinical Trials Directive (2001/20/EC), which has been replaced by the European Clinical Trials Regulation (Regulation EU No 536/2014). In anticipation of these new requirements, on October 1, 2025, the MHRA updated its guidance for clinical trials to address, among other things, research transparency requirements for clinical trials, the approvals process, the Research Ethics Committee review of clinical trials, simplified arrangements for consent in clinical trials and pharmacovigilance. Since the United Kingdom left the EU prior to the date on which the EU CTR took effect, the U.K. legal framework did not benefit from the same revisions as occurred at EU level.

At the same time, a new international recognition procedure ("IRP”) will apply, which is intended to facilitate approval of pharmaceutical products in the United Kingdom. The IRP is open to applicants that have already received an authorization for the same product from one of the MHRA’s specified Reference Regulators ("RRs”). The RRs notably include the EMA and regulators in the EU/European Economic Area member states for approvals in the EU centralized procedure and mutual recognition procedure as well as the FDA (for product approvals granted in the United States). However, the concrete functioning of the IRP is currently unclear. Any delay in obtaining, or an inability to obtain, any marketing approvals may force us or any of our future collaborators to restrict or delay efforts to seek regulatory approval in the United Kingdom for any product candidates, which could significantly and materially harm our business.

We will be subject to ongoing obligations and continuing regulatory review for Utebzi and any existing or future product candidates that receive regulatory approval in the future, which may result in significant additional expense. Utebzi and our existing or future product candidates, if approved, could be subject to restrictions or withdrawal from the market, and we may be subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with Utebzi or our existing or future product candidates, when and if approved.

Any product candidate for which we obtain marketing approval will also be subject to ongoing regulatory requirements for labeling, packaging, storage, distribution, advertising, promotion, record keeping and submission of safety and other post-market information. For example, approved products, manufacturers and manufacturers’ facilities are required to comply with extensive FDA requirements, including ensuring that quality control and manufacturing procedures conform to cGMPs. As such, we and our contract manufacturers will be subject to continual review and periodic inspections to assess compliance with cGMPs. We and others with whom we work must continue to expend time, money and effort in all areas of regulatory compliance, including manufacturing, production and quality control. We will also be required to report certain adverse reactions and production problems, if any, to the FDA and to comply with requirements concerning advertising and promotion for our products.

In addition, even if marketing approval of a product candidate is granted, the approval may be subject to limitations on the indicated uses for which the product may be marketed, may be subject to significant conditions of approval or may impose requirements for costly post-marketing testing and surveillance to monitor the safety or efficacy of the product. The FDA may also require a REMS as a condition of approval of any of our current or future product candidates, which could include requirements for a medication guide, physician communication plans or additional elements to ensure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. The FDA closely regulates the post-approval marketing and promotion of drugs to ensure that drugs are marketed only for the approved indications and in accordance with the provisions of the approved labeling and regulatory requirements. The FDA also imposes stringent restrictions on manufacturers’ communications regarding off-label use and if we do not restrict the marketing of our products only to their approved indications, we may be subject to enforcement action for off-label marketing.

For example, on September 9, 2025, the President issued a Memorandum directing HHS to "ensure transparency and accuracy in direct-to-consumer prescription drug advertising, including by increasing the amount of information regarding any risks associated with the use of any such prescription drug required to be provided in prescription drug advertisements.” To that end, the FDA announced that it is initiating a rulemaking process "to eliminate the ‘adequate provision’ loophole that allows pharmaceutical advertisements to hide safety information by placing it in another format or location.” In this context, the FDA declared that it will no longer tolerate what it characterized as "deceptive practices” in prescription drug advertising and that the agency would "aggressively deploy” its available enforcement tools, with "heightened scrutiny” of fair balance and disclosures in social media promotions. The FDA also issued a generic "notice letter” directing companies to "remove any noncompliant advertising and bring all promotional communications into compliance.”

If a regulatory agency discovers previously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the product is manufactured, or disagrees with the promotion, marketing or labeling of a product, it may impose restrictions on that product or us. In addition, if any product fails to comply with applicable regulatory requirements, a regulatory agency may:

issue warning letters, untitled letters or impose holds on clinical trials if any are still on-going;

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mandate modifications to promotional materials or require provision of corrective information to healthcare practitioners;
impose restrictions on the product or its manufacturers or manufacturing processes;
impose restrictions on the labeling or marketing of the product;
impose restrictions on product distribution or use;
require post-marketing studies or clinical trials;
require withdrawal of the product from the market;
refuse to approve pending applications or supplements to approved applications that we submit;
require recall of the product;
require entry into a consent decree, which can include imposition of various fines (including restitution or disgorgement of profits or revenue), reimbursements for inspection costs, required due dates for specific actions and penalties for noncompliance;
suspend or withdraw marketing approvals;
refuse to permit the import or export of the product;
seize or detain supplies of the product; or
issue injunctions or impose civil or criminal penalties.

The FDA’s policies may change and additional government regulations may be enacted that could prevent, limit or delay marketing approval of any of our current or future product candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained, which would adversely affect our business, prospects and ability to achieve or sustain profitability.

Our relationships with customers and third-party payors will be subject to applicable anti-kickback, fraud and abuse and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings.

Healthcare providers, physicians and third-party payors will play a primary role in the recommendation and prescription of any product candidates for which we may obtain marketing approval. Our future arrangements with third-party payors and customers will expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we market, sell and distribute any products for which we obtain marketing approval and reimbursement. These laws and regulations include, for example, the false claims and anti-kickback statutes and regulations. At such time as we market, sell and distribute any products for which we obtain marketing approval and reimbursement, it is possible that our business activities could be subject to challenge under one or more of these laws and regulations. Restrictions under applicable federal and state healthcare laws and regulations include the following:

the federal healthcare Anti-Kickback Statute, among other things, prohibits persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward either the referral of an individual for, or the purchase, order or recommendation of, any good or service for which payment may be made under federally funded healthcare programs such as Medicare and Medicaid. A person or entity does not need to have actual knowledge of the statute or specific intent to violate the statute in order to have committed a violation. In addition, the government may assert that a claim that includes items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act;
the federal False Claims Act imposes criminal and civil penalties, which can be enforced by private citizens through civil whistleblower and qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government;
HIPAA imposes criminal and civil liability for executing a scheme to defraud any healthcare benefit program or for making any false statements relating to healthcare matters; as in the case of the federal healthcare Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate the statute in order to have committed a violation;
HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, also imposes obligations on certain covered entities as well as their business associates that perform services involving the use or disclosure of protected health information, including mandatory contractual terms, with respect to safeguarding the

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privacy and security of protected health information, and requires notification to affected individuals and regulatory authorities of certain breaches of security of protected health information;
the federal False Statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for healthcare benefits, items or services;
the federal Physician Payments Sunshine Act requires manufacturers of drugs, devices, biologics and medical supplies covered by Medicare or Medicaid to report, on an annual basis, to the HHS, information related to payments and other transfers of value to physicians (defined to include doctors, dentists, optometrists, podiatrists, chiropractors and certain advanced non-physician health care practitioners), teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members;
state and federal consumer protection laws, including the Federal Trade Commission Act, govern the collection, use, disclosure and protection of health and other personal information and could apply to our operations and the operations of our collaborators; and
analogous state laws and regulations, such as state anti-kickback and false claims laws, may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors, including private insurers, and some state laws require pharmaceutical companies to implement compliance programs and to track and report gifts, compensation and other remuneration provided to physicians, in addition to requiring drug manufacturers to report information related to payments to physicians and other healthcare providers or marketing expenditures and pricing information. State laws also govern the privacy and security of health information in some circumstances, and many such state laws differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.

We will be required to spend substantial time and money to ensure that our business arrangements with third parties, and our business generally, comply with applicable healthcare laws and regulations. Even then, governmental authorities may conclude that our business practices, including arrangements we may have with physicians and other healthcare providers, do not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If governmental authorities find that our operations violate any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, imprisonment, fines, exclusion from government funded healthcare programs, such as Medicare and Medicaid, and we may be required to curtail or restructure our operations. Moreover, we expect that there will continue to be federal and state laws and regulations, proposed and implemented, that could affect our operations and business. The extent to which future legislation or regulations, if any, relating to healthcare fraud and abuse laws or enforcement, may be enacted or what effect such legislation or regulation would have on our business remains uncertain.

Recently enacted and future policies and legislation may increase the difficulty and cost for us to obtain marketing approval of any of our current or future product candidates, and commercialize Utebzi or any of our current or future product candidates, and may affect the reimbursement made for Utebzi or any product candidate for which we receive marketing approval.

The pricing and reimbursement environment may become more challenging due to, among other reasons, policies advanced by the presidential administration, federal agencies, new healthcare legislation passed by the U.S. Congress or fiscal challenges faced by all levels of government health administration authorities. Among policy makers and payors in the United States and foreign countries, there is significant interest in promoting changes in healthcare systems with the stated goals of containing healthcare costs, improving quality and expanding access to healthcare. In the United States, the pharmaceutical industry has been a particular focus of these efforts and has been significantly affected by major legislative initiatives. We expect to experience pricing pressures in connection with the sale of any products for which we obtain marketing approval, due to the trend toward managed healthcare, the increasing influence of health maintenance organizations and additional legislative proposals. Resulting legislative, administrative, or policy changes from payors may reduce payments for any products for which we obtain marketing approval and could affect future revenues.

The Affordable Care Act ("ACA”) became law in the United States in March 2010 with the goals of broadening access to health insurance, reducing or constraining the growth of healthcare spending, enhancing remedies against fraud and abuse, adding new transparency requirements for the health care and health insurance industries and imposing additional health policy reforms. Provisions of ACA may negatively affect our future revenues. For example, the ACA requires, among other things, that annual fees be paid by manufacturers for certain branded prescription drugs, that manufacturers participate in a discount program for certain outpatient drugs under Medicare Part D, and that manufacturers provide increased rebates under the Medicaid Drug Rebate Program for outpatient drugs dispensed to Medicaid recipients. The ACA also addresses a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for line extensions and expands oversight and support for the federal government’s comparative effectiveness research of services and products.

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Beginning on April 1, 2013, Medicare payments for all items and services under Part A and B, including drugs and biologicals, and most payments to plans under Medicare Part D were reduced by 2%, or automatic spending reductions, required by the Budget Control Act of 2011 ("BCA”), as amended by the American Taxpayer Relief Act of 2012. The BCA requires sequestration for most federal programs, excluding Medicaid, Social Security, and certain other programs. The BCA caps the cuts to Medicare payments for items and services and payments to Part D plans at 2%. As long as these cuts remain in effect, they could adversely affect payment for any of our current or future product candidates, if approved for commercial marketing. We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand for any of our current or future product candidates or additional pricing pressures.

Moreover, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products. There have been several U.S. Congressional inquiries and proposed bills designed to, among other things, bring more transparency to drug pricing, reduce the cost of prescription drugs under Medicare, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs. Individual states in the United States have also become increasingly active in passing legislation and implementing regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. In December 2020, the U.S. Supreme Court held unanimously that federal law does not preempt the states’ ability to regulate pharmaceutical benefit managers ("PBMs”) and other members of the health care and pharmaceutical supply chain, an important decision that may lead to further and more aggressive efforts by states in this area. The Federal Trade Commission ("FTC”) in mid-2022 also launched sweeping investigations into the practices of the PBM industry, and published interim reports with its finding in mid-2024 and January 2025, that could lead to additional federal and state legislative or regulatory proposals targeting such entities’ operations, pharmacy networks, or financial arrangements, including in the current 2025-2026 congressional session. During the previous congressional session, numerous bipartisan PBM reforms were considered in both the Senate and the House of Representatives; they include diverse legislative proposals such as eliminating rebates; divorcing service fees from the price of a drug, discount, or rebate; prohibiting spread pricing; limiting administrative fees; requiring PBMs to report formulary placement rationale; promoting transparency. Significant efforts to change the PBM industry as it currently exists in the United States may affect the entire pharmaceutical supply chain and the business of other stakeholders, including biopharmaceutical developers like us. In September 2023, the FTC issued a policy statement articulating its view that certain "improper” patent listings by drug developers in FDA’s Orange Book represent an unfair trade practice and indicated that industry should be prepared for potential enforcement actions based on its analysis. The FTC followed that action in November 2023 by publicly calling out over 100 "improper” patent listings made by ten large pharmaceutical companies and initiating an FDA administrative process with respect to those patents. The controversy regarding the appropriateness of listing such patents has led to numerous lawsuits alleging anticompetitive conduct by biopharmaceutical companies. Currently, the FTC under the Trump Administration appears to be sticking to the prior administration’s policy of issuing warning letters for "improper” patent listings with a goal of enhancing competition between brand-name and generic pharmaceuticals in an effort to lower healthcare costs. It remains to be seen whether Congress will take any legislative actions related to this issue. Accordingly, regulatory and government interest in biopharmaceutical industry business practices continues to expand and pose a risk of uncertainty.

Further, in August 2022, President Biden signed into the law the Inflation Reduction Act ("IRA”). Among other things, the IRA has multiple provisions that may impact the prices of drug products that are both sold into the Medicare program and throughout the United States. A manufacturer of drugs covered by Medicare Parts B or D must now pay a rebate to the federal government if their drug product’s price increases faster than the rate of inflation. This calculation is made on a drug product by drug product basis and the amount of the rebate owed to the federal government is directly dependent on the volume of a drug product that is paid for by Medicare Parts B or D. Additionally, starting for payment year 2026, Centers for Medicare & Medicaid Services ("CMS”) will negotiate drug prices annually for a select number of single source Part D drugs without generic or biosimilar competition. With passage of the One Big Beautiful Bill Act on July 3, 2025, which was signed into law on July 4, 2025, Congress extended this exemption to drugs and biologics with multiple orphan drug designations.

The first cycle of negotiations for the Medicare Drug Price Negotiation Program commenced in the summer of 2023 with the negotiated prices for ten selected drug products becoming effective on January 1, 2026. The second cycle of negotiations with participating drug companies occurred during 2025, and the negotiated prices for this second set of 15 drugs will become effective on January 1, 2027. On January 27, 2026, CMS published the list of 15 drugs selected for the third cycle of negotiations. These negotiated prices will become effective on January 1, 2028.

On June 6, 2023, Merck & Co. filed a lawsuit against HHS and CMS asserting that, among other things, the IRA’s Drug Price Negotiation Program for Medicare constitutes an uncompensated taking in violation of the Fifth Amendment of the Constitution. Subsequently, a number of other parties also filed lawsuits in various courts with similar constitutional claims. HHS has generally won the substantive disputes in these cases or succeeded in getting claims dismissed for lack of standing or on the merits. For example, on May 8, 2025, the U.S. Court of Appeals for the Third Circuit rejected AstraZeneca L.P.’s challenge to the Medicare price negotiation

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program, finding that the program did not violate the company’s due process rights under the Constitution. Litigation involving these and other provisions of the IRA will continue with unpredictable and uncertain results.

Accordingly, while it is currently unclear how the IRA will be effectuated, we cannot predict with certainty what impact any federal or state health reforms will have on us, but such changes could impose new or more stringent regulatory requirements on our activities or result in reduced reimbursement for our products, any of which could adversely affect our business, results of operations and financial condition.

On April 15, 2025, President Trump issued an executive order which directs HHS to take steps to reduce the prices of pharmaceutical products. The order repeats many of the proposals advanced during the first Trump Administration, including directing the FDA to streamline and improve its existing drug importation program so as to make it easier for states to obtain approval without sacrificing the safety or quality of drug products. Other provisions of the order relate to the 340B program. Specifically, one provision calls on the Secretary of HHS to determine the hospital acquisition cost for covered outpatient drugs at hospital outpatient departments and to consider and propose any appropriate adjustments for Medicare payment. The other provision directs HHS to condition grant funding to certain health centers on those centers passing through the 340B discounts they receive on insulin and injectable epinephrine products to patients who meet certain requirements. With respect to the IRA’s Medicare drug pricing program, the order, among other things, calls for alignment in "the treatment of small molecule prescription drugs with that of biological products, ending the distortion that undermines relative investment in small molecule prescription drugs, coupled with other reforms to prevent any increase in overall costs to Medicare and its beneficiaries.”

Further, on May 12, 2025, President Trump issued an additional executive order calling on pharmaceutical manufacturers to voluntarily reduce the prices of medicines in the United States. The Order directs the Secretary of HHS to communicate most-favored-nation ("MFN”) price targets to pharmaceutical manufacturers to bring prices in line with comparably developed nations. The executive order further provides that if such actions do not lower the costs of pharmaceuticals, the Secretary of HHS would pursue other actions, including proposing a rulemaking that imposes MFN pricing in the United States. Subsequently, on May 20, 2025, HHS indicated that the proposed MFN pricing will apply only to brand products without generic or biosimilar competition and the reference foreign countries will include only those in which the branded product similarly does not have generic or biosimilar competition. Second, HHS indicated that the MFN target price will be the lowest price in a country that is a member of the Organisation for Economic Co-operation and Development ("OECD”) with a gross domestic product ("GDP”), per capita of at least 60% of the U.S. GDP per capita. Based on previous estimates, there are likely at least 22 OECD countries that would satisfy this criterion. The implications of these actions remain unclear and are likely to result in litigation if the administration pursues an MFN regulatory pricing requirement.

Thereafter, on July 31, 2025, President Trump issued letters to 17 pharmaceutical companies reiterating the requirements of the May 12, 2025, Executive Order and demanding that such companies extend MFN pricing to Medicaid patients, guarantee MFN pricing for newly-launched drug products, return increased revenues abroad to American patients and provide for direct purchasing at MFN pricing. Since that time, virtually all of these pharmaceutical companies have entered into agreements with the administration to provide for lower prices on certain pharmaceuticals. On February 5, 2026, President Trump launched TrumpRx.gov, a website that directs individuals to pharmaceutical manufacturer websites that are offering price discounts based on the administration’s pricing agreements with pharmaceutical manufacturers.

On December 23, 2025, CMS, through its Center for Medicare and Medicaid Innovation, proposed two five-year pilot programs to implement a "reference pricing” regime for drugs paid for under Medicare for 25% of covered beneficiaries. The programs are referred to as the Global Benchmark for Efficient Drug Pricing Model for Medicare Part B drugs, referred to as GLOBE, and the Guarding U.S. Medicare Against Rising Drug Costs for Medicare Part D drugs, referred to as GUARD. Under the proposed pilot programs, a manufacturer would owe rebates to Medicare if prices for their drugs exceeded the prices paid by other economically comparable reference countries, defined in the proposed regulations as OECD countries with a GDP of $400 billion and a per capita GDP that is at least 60% of the U.S. per capita GDP (an initial list of 19 reference countries is included in the proposed rule). Comments are due on the proposed pilot program rules on or before February 23, 2026, and the pilot programs are proposed to go into effect beginning October 1, 2026.

At the state level, individual states are increasingly aggressive in passing legislation and implementing regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. This is increasingly true with respect to products approved pursuant to the accelerated approval pathway. State Medicaid programs and other payers are developing strategies and implementing significant coverage barriers, or refusing to cover these products outright, arguing that accelerated approval drugs have insufficient or limited evidence despite meeting the FDA’s standards for accelerated approval.

We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation or administrative or executive action, either in the United States or abroad. We expect that additional state and federal health care reform

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measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay for health care products and services.

Changes in tax laws or in their implementation or interpretation could adversely affect our business and financial condition.

Income, sales, use or other tax laws, statutes, rules, or regulations could be enacted or amended at any time, which could affect our business or financial condition, including causing potentially adverse impacts to our effective tax rate, tax liabilities, and cash tax obligations. For example, the IRA was signed into law in August 2022, and the OBBBA was signed into law in July 2025. The IRA introduced new tax provisions, including a one percent excise tax imposed on certain stock repurchases by publicly traded companies. The one percent excise tax generally applies to any acquisition of stock by the publicly traded company (or certain of its affiliates) from a stockholder of the company in exchange for money or other property (other than stock of the company itself), subject to a de minimis exception. Thus, the excise tax could apply to certain transactions that are not traditional stock repurchases. The OBBBA contains numerous tax provisions that we are currently in the process of evaluating, and which may significantly affect our business or financial condition. The recent changes under the OBBBA include tax rate extensions and changes to the business interest deduction limitation, the expensing of domestic research and development expenditures (in contrast to the continued capitalization and amortization of foreign research and development expenditures), the bonus depreciation deduction rules, and the international tax framework. Regulatory guidance under the IRA, the OBBBA, and other tax-related legislation is and continues to be forthcoming, and such guidance could ultimately increase or lessen the impact of these laws on our business and financial condition. In addition, it is uncertain if and to what extent various states will conform to changes in federal tax legislation.

Failure to comply with our reporting and payment obligations under U.S. governmental pricing programs for any of our current or future product candidates that we may commercialize, could have a material adverse effect on our business, financial condition and results of operations.

If we participate in the Medicaid Drug Rebate Program if and when we successfully commercialize a product candidate, we will be required to report certain pricing information for our product to the Centers for Medicare & Medicaid Services, the federal agency that administers the Medicaid and Medicare programs. We may also be required to report pricing information to the U.S. Department of Veterans Affairs. If we become subject to these reporting requirements, we will be liable for errors associated with our submission of pricing data, for failure to report pricing data in a timely manner, and for overcharging government payers, which can result in civil monetary penalties under the Medicaid statute, the federal civil False Claims Act, and other laws and regulations.

Additionally, the 2021 Consolidated Appropriations Act signed into law on December 27, 2020 incorporated extensive healthcare provisions and amendments to existing laws, which includes a requirement that all manufacturers of drug products covered under Medicare Part B report the product’s average sales price to HHS beginning on January 1, 2022, subject to enforcement via civil money penalties. Increasingly there are state laws and regulations that require prescription drug price reporting or impose other restrictions designed to control pharmaceutical product pricing, such as price or patient reimbursement constraints and discounts.

Our employees, independent contractors, principal investigators, contract research organizations, consultants or vendors may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements.

We are exposed to the risk that our employees, independent contractors, principal investigators, contract research organizations, consultants or vendors may engage in fraudulent or other illegal activity. Misconduct by these parties could include intentional, reckless and/or negligent conduct or disclosure of unauthorized activities to us that violates: FDA regulations, including those laws requiring the reporting of true, complete and accurate information to the FDA; manufacturing standards; federal and state healthcare fraud and abuse laws and regulations; or laws that require the true, complete and accurate reporting of financial information or data. Specifically, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Activities subject to these laws also involve the improper use or misrepresentation of information obtained in the course of clinical trials or creating fraudulent data in our preclinical studies or clinical trials, which could result in regulatory sanctions and serious harm to our reputation. It is not always possible to identify and deter misconduct by our employees and other third parties, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. Additionally, we are subject to the risk that a person could allege such fraud or other misconduct, even if none occurred. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, including the imposition of civil, criminal and administrative penalties, damages, monetary fines, possible exclusion from participation in Medicare, Medicaid and other federal healthcare programs, contractual damages, reputational harm, diminished potential profits and future earnings, and curtailment of our operations, any of which could adversely affect our business, financial condition, results of operations or prospects.

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Disruptions at the FDA and other government agencies from funding cuts, personnel losses, regulatory reform, government shutdowns and other developments could hinder our ability to obtain guidance from the FDA regarding our clinical development program and develop and secure approval of any of our current or future product candidates in a timely manner, which would negatively impact our business.

The FDA and comparable regulatory agencies in foreign jurisdictions, such as the EMA and Committee for Medicinal Products for Human Use, play an important role in the development of any of our current or future product candidates by providing guidance on our clinical development programs and reviewing our regulatory submissions, including INDs, requests for special designations and marketing applications. If these oversight and review activities are disrupted, then correspondingly our ability to develop and secure timely approval of any of our current or future product candidates could be impacted in a negative manner.

For example, the loss of FDA leadership and personnel could lead to disruptions and delays in FDA guidance, review and approval of any of our current or future product candidates. Pursuant to President Trump’s Executive Order 14210, "Implementing the President’s ‘Department of Government Efficiency’ Workforce Optimization Initiative,” the Secretary of HHS announced on March 27, 2025, a reorganization and Reduction in Force ("RIF”) across the Department of approximately 20,000 employees (82,000 to 62,000), with FDA’s workforce of approximately 20,000 to decrease by 3,500 full-time employees. Subsequently, the FDA indicated that roughly a quarter of those employees who received RIF notices had been reinstated. On July 14, 2025, following litigation reaching the U.S. Supreme Court, the administration began to carry out these layoffs across HHS, including the FDA. In November 2025, a Congressional Continuing Resolution ended the government shutdown, providing full-year funding for the FDA for Fiscal Year 2026 through September 30, 2026 at approximately $7 billion with a slight increase in user fees for drug and device companies.

While the FDA’s review of marketing applications and other activities for new drugs and biologics is largely funded through the user fee program established under the Prescription Drug User Fee Act ("PDUFA”), it remains unclear how the administration’s RIF and budget cuts will impact this program and the ability of the FDA to provide guidance and review any of our current or future product candidates in a timely manner. For example, while the FDA RIF did not reportedly specifically target FDA reviewers, many operations, administrative and policy staff that help support such reviews were affected and those losses could lead to delays in PDUFA reviews and related activities. There has been at least one report in which the FDA failed to meet a PDUFA goal date for approval of an NDA due to heavy workload and limited resources. In addition, while currently unclear, there is a risk that the RIF and budget cutbacks could threaten the integrity of the PDUFA program itself. That is because, for the FDA to obligate user fees collected under PDUFA in the first place, a certain amount of non-user fee appropriations must be spent on the process for the review of applications plus certain other costs during the same fiscal year.

There is also substantial uncertainty as to how regulatory reform measures being implemented by the Trump Administration across the government will impact the FDA and other federal agencies with jurisdiction over our activities. For example, since taking office, the President has issued a number of executive orders that could have a significant impact on the manner in which the FDA conducts its operations and engages in regulatory and oversight activities. These include Executive Order 14192, "Unleashing Prosperity Through Deregulation,” January 31, 2025; Executive Order 14212, "Establishing the President’s Make America Healthy Again Commission,” February 13, 2025; and Executive Order 14219, "Ensuring Lawful Governance and Implementing the President’s ‘Department of Government Efficiency’ Deregulatory Initiative,” February 21, 2025. If these or other orders or executive actions impose constraints on the FDA’s ability to engage in oversight and implementation activities in the normal course, our business may be negatively impacted.

Similarly, actions by the U.S. government have significantly disrupted the operations of U.S. government agencies such as the National Institutes of Health, National Science Foundation, Centers for Disease Control and Prevention, and FDA, which have traditionally provided funding for basic research, research and development, and clinical testing. These U.S. government actions have included, among other things, suspending, terminating and withholding of disbursements of funds owed under ongoing contracts, grants, and other financial assistance agreements; declining to continue multi-year research projects for additional annual budget periods; canceling or delaying solicitations for new contract, grant and other financial assistance awards; canceling or delaying proposal evaluation processes and issuance of such new awards; substantially reducing federal agency staff responsible for managing contract and financial assistance programs; eliminating agency information and resources for facilitating research activity; delaying or terminating federal agency procedures for authorizing international transactions; initiating aggressive enforcement actions that may disrupt the operations of major research universities that are significant contributors to life sciences research in the United States, and threatening access to federal agency contracts and other funding awards based on companies’ otherwise lawful corporate policies and choice of counsel. These U.S. government actions could, directly or indirectly, significantly disrupt, delay, prevent, or increase the costs of our research and product commercialization programs, including our ability to develop new product candidates, conduct clinical trials, implement research collaborations with other companies or institutions, and obtain approvals to market and sell new products.

In addition, government funding of the government agencies on which our operations may rely, including those that fund research and development activities, is subject to the political process, which is inherently fluid and unpredictable. For example, the

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federal government shut down on October 1, 2025, and did not reopen for 43 days. With the shutdown, the FDA issued a public notice stating that agency operations would continue to the extent permitted by law, such as activities necessary to address imminent threats to the safety of human life and activities funded by carryover user fee funds. The FDA declared that, during the shutdown period, it did not have legal authority to accept user fees assessed for Fiscal Year 2026 until a Fiscal Year 2026 appropriation or Continuing Resolution for the FDA was enacted. As a result, the FDA was not able to accept any regulatory submissions for Fiscal Year 2026 that required a fee payment and that was submitted during the lapse period. In addition, the FDA indicated that some of its regulatory science research, crucial for advancing product innovation, safety, and quality, would be curtailed during the lapse period.

At the same time, disruptions at the FDA and other government agencies may result from public health events similar to the COVID-19 pandemic. For example, during the pandemic, a number of companies announced receipt of complete response letters due to the FDA’s inability to complete required inspections for their applications. In the event of a similar public health emergency in the future, the FDA may not be able to continue its current pace and review timelines could be extended. Regulatory authorities outside the United States facing similar circumstances may adopt similar restrictions or other policy measures in response to a similar public health emergency and may also experience delays in their regulatory activities.

If any of the foregoing developments and others impact the ability of the FDA to provide us with guidance regarding our clinical development programs or delay the agency’s review and processing of our regulatory submissions, including INDs and NDAs/BLAs, our business would be negatively impacted. Further, any future government shutdown could impact our ability to access the public markets and obtain necessary capital in order to properly capitalize and continue our operations.

Finally, three decisions from the U.S. Supreme Court issued in July 2024 may lead to an increase in litigation against regulatory agencies that could create uncertainty and thus negatively impact our business. The first decision overturned established precedent that required courts to defer to regulatory agencies’ interpretations of ambiguous statutory language. The second decision overturned regulatory agencies’ ability to impose civil penalties in administrative proceedings. The third decision extended the statute of limitations within which entities may challenge agency actions. These cases may result in increased litigation by industry against regulatory agencies, including but not limited to the FDA and SEC, and may impact how such agencies choose to pursue enforcement and compliance actions. However, the specific, lasting effects of these decisions, which may vary within different judicial districts and circuits, are unknown. We also cannot predict the extent to which FDA and SEC regulations, policies, and decisions may become subject to increasing legal challenges, delays, and changes.

Changes in and uncertainty surrounding U.S. and international trade policies may adversely impact our business and operating results.

In the spring of 2025, the U.S. government initiated a series of tariff-related actions against U.S. trading partners. On April 2, 2025, an executive order announced a "baseline” reciprocal tariff of 10% on all U.S. trading partners effective April 5, 2025, and higher individualized reciprocal tariffs on 57 countries (with certain product exemptions for pharmaceutical-related products, among others). Previously, the U.S. government had imposed a 25% tariff on Canada and Mexico for goods not covered by the United States-Mexico-Canada Agreement and tariffs due to drug trafficking equaling 20% on imports from China. In response, several countries threatened retaliatory measures, including Canada and China, which then imposed retaliatory tariffs. Prior to when the country-specific reciprocal tariffs were scheduled to take effect, the U.S. delayed the effective date of such tariffs for all countries except China to August 1, 2025. Later, the United States and China reached a framework agreement that ultimately resulted in the suspension of the higher reciprocal tariffs on China until November 10, 2025. Shortly before that expiration date, the United States and China reached a one-year agreement with an expiration of November 10, 2026, that includes the continued suspension of the heightened reciprocal tariffs on China and delayed enforcement of new U.S. export rules targeting affiliates of blacklisted firms.

Since the April reciprocal tariffs announcement, the European Union, Japan, South Korea, Switzerland and the United Kingdom, among others, have reached deals with the U.S. that include reduced tariff rates to varying levels and other measures. On July 31, 2025, the U.S. administration issued an executive order detailing new reciprocal tariff rates for individual countries that took effect on August 7, 2025. The deals with the European Union, Japan, South Korea, Switzerland (and Liechtenstein), the United Kingdom and others cap pharmaceutical tariffs at 15%. In addition, an agreement with Malaysia provides a zero percent tariff exemption for pharmaceutical products that are not patented in the United States and are used in pharmaceutical applications and an agreement with Switzerland and Lichenstein caps tariffs on pharmaceuticals imported from those two countries at 15%. Finally, an agreement with Taiwan concluded on January 15, 2026 eliminates tariffs on generic pharmaceuticals and their active ingredients imported from Taiwan.

The reciprocal tariffs and the fentanyl tariffs were imposed pursuant to the International Emergency Economic Powers Act (the "IEEPA”). These tariffs were found to be unconstitutional by multiple federal courts in the spring and summer of 2025. On February 20, 2026, the Supreme Court held that IEEPA does not authorize the President to impose tariffs, invalidating both the reciprocal tariffs and the drug trafficking tariffs. Shortly thereafter, the President issued a new Executive Order revoking the IEEPA tariffs and Customs and Border Protection ceased collecting the tariffs as of 12:01 am on February 24, 2026. At the same time, however, the Trump

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Administration imposed a new 10% global tariff under Section 122 of the Trade Act of 1974, effective February 24, 2026. Pursuant to the statute, these tariffs expired on July 24, 2026. However, on July 23, 2026, the Office of the U.S. Trade Representative announced final action under Section 301 of the Trade Act of 1974 imposing new tariffs on imports from 60 trading partners based on findings that those countries had failed to adopt and effectively enforce prohibitions on imports of goods produced with forced labor. The new tariffs, set at either 10% or 12.5% depending on the country’s level of commitment to forced-labor import restrictions, took effect on July 24, 2026, and replaced the tariffs that had been imposed under Section 122. The Administration has announced that it also plans to initiate new investigations related to excess capacity on "most major trading partners” under Section 301 of the same act, which will likely lead to additional tariffs.

Neither the Supreme Court’s decision nor the Executive Order revoking the IEEPA tariffs addressed refunds, leaving the issue to renewed proceedings before the U.S. Court of International Trade, where importers may need to pursue administrative remedies and/or litigation amid continued uncertainty.

Sustained uncertainty about, or the further escalation of, trade and political tensions between the United States and China could result in a disadvantageous research and manufacturing environment in China, particularly for U.S.-based companies, including retaliatory restrictions that hinder or potentially inhibit our ability to rely on CMOs and other service providers that operate in China.

Separately, in April 2025, the Department of Commerce initiated an investigation under Section 232 of the Trade Expansion Act of 1962 into the impact on U.S. national security of the imports of pharmaceuticals and pharmaceutical ingredients, including finished drug products, medical countermeasures, critical inputs such as active pharmaceutical ingredients, and key starting materials, and derivative products of those items. On September 25, 2025, the U.S. administration announced that, beginning October 1, 2025, all branded or patented drugs imported in the United States would face a 100% tariff. At the same time, the administration indicated that these tariffs could be avoided by building pharmaceutical manufacturing facilities in the United States Thereafter, the administration delayed the October 1, 2025 effective date of the tariffs on branded or patented pharmaceutical products announcing that the administration had now "begun preparing” tariffs on manufacturers that do not build in the United States or enter into a most-favored-nation drug pricing agreement with the administration.

On April 2, 2026, President Trump issued a Proclamation invoking Section 232 of the Trade Expansion Act of 1962 to impose tariffs on imports of patented pharmaceuticals, biologics, and associated ingredients into the United States. The action affects pharmaceutical manufacturers, importers, and supply chain participants. Specifically, beginning July 31, 2026, a 100% tariff will apply to pharmaceutical articles that are subject to a valid, unexpired U.S. patent and are listed in the FDA’s Approved Drug Products with Therapeutic Equivalence Evaluations or are listed in the FDA’s Lists of Licensed Biological Products. The 100% tariff also applies to active pharmaceutical ingredients and key starting materials for such articles. Certain categories of products are exempt from these tariffs, including generic pharmaceuticals and biosimilars; U.S.-origin pharmaceutical products, active pharmaceutical ingredients and key starting materials; products classified in certain 10-digit tariff codes, listed in Annex IV of the Proclamation; drugs and associated ingredients for all approved indications that are designated as orphan pursuant to the Orphan Drug Act; drugs for certain specific uses, including nuclear medicines; plasma-derived therapies; fertility treatments; cell and gene therapies; antibody drug conjugates; medical countermeasures related to chemical, biological, radiological, and nuclear threats; animal health; and other specialty pharmaceutical products to be later identified by the Secretary of Commerce; and goods that qualify as "prototypes to be used exclusively for development, testing, product evaluation, or quality control purposes,” may be excluded from the additional tariffs.

As a result of changes in tariffs that have been announced and/or implemented, and the underlying uncertainty currently surrounding international trade, we could experience a negative impact to our costs of materials and production processes, and supply chain disruptions and delays as a result of any new tariff policies or trade restrictions. If we are unable to obtain necessary raw materials or product components in sufficient quantity and in a timely manner due to disruptions in the global supply chain caused by macroeconomic events and conditions, the research, development, testing and clinical trials of any product candidates may be delayed or infeasible, and regulatory approval or commercial launch of any resulting product may be delayed or not obtained, which could significantly harm our business. We cannot yet predict the effect of the U.S. tariffs on imports, or the extent to which other countries will impose quotas, duties, tariffs, taxes or other similar restrictions upon imports or exports in the future, nor can we predict future trade policy or the terms of any renegotiated trade agreements and their impact on our business.

Risks Related to Employee Matters and Managing Growth

Our future success depends on our ability to retain our key executives and to attract, retain and motivate qualified personnel.

Our industry has experienced a high rate of turnover of management personnel in recent years. We are highly dependent on the development, regulatory, commercialization and business development expertise of principal members of our management, scientific and clinical team. Although we have formal employment agreements with our executive officers, these agreements do not prevent them from terminating their employment with us at any time.

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If we lose one or more of our named executive officers or key employees, our ability to implement our business strategy successfully could be seriously harmed. Furthermore, replacing executive officers and key employees may be difficult and may take an extended period of time because of the limited number of individuals in our industry with the breadth of skills and experience required to develop, gain regulatory approval of and commercialize product candidates successfully. Competition to hire from this limited pool is intense, and we may be unable to hire, train, retain or motivate these additional key personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. We also experience competition for the hiring of scientific and clinical personnel from universities and research institutions. In addition, we rely on consultants and advisors, including scientific and clinical advisors, to assist us in formulating our research and development and commercialization strategy. Our consultants and advisors may be engaged by entities other than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability to us. If we are unable to continue to attract and retain high quality personnel, our ability to develop and commercialize product candidates will be limited.

We undertook internal restructuring activities that could result in disruptions to our business or otherwise materially harm our results of operations or financial condition.

In October 2024, we announced a restructuring plan and implemented a workforce reduction. There can be no assurance that our restructuring will achieve the cost savings, operating efficiencies or other benefits that we may initially expect. Restructuring activities may also result in a loss of continuity, accumulated knowledge and inefficiency during transitional periods and thereafter. Further, internal restructurings can require a significant amount of time and focus from management and other employees, which may divert attention from operations.

If foreign approvals are obtained, we will be subject to additional risks in conducting business in international markets.

Even if we are able to obtain approval for commercialization of a product candidate in a foreign country, we will be subject to additional risks related to international business operations, including:

potentially reduced protection for intellectual property rights;
the potential for so-called parallel importing, which is what happens when a local seller, faced with high or higher local prices, opts to import goods from a foreign market (with low or lower prices) rather than buying them locally;
unexpected changes in tariffs, trade barriers and regulatory requirements;
economic weakness, including inflation, or political instability in particular foreign economies and markets;
workforce uncertainty in countries where labor unrest is more common than in the United States;
production shortages resulting from any events affecting a product candidate and/or finished drug product supply or manufacturing capabilities abroad;
business interruptions resulting from geo-political conflicts, including war and terrorism, health epidemics or natural disasters, including earthquakes, hurricanes, typhoons, floods and fires; and
failure to comply with Office of Foreign Asset Control rules and regulations and the Foreign Corrupt Practices Act.

These and other risks may materially adversely affect our ability to attain or sustain revenue from international markets.

Risks Related to Our Common Stock

The price of our common stock has been and, in the future, may continue to be volatile whether related or unrelated to our operations, which could result in a decline in value for our stockholders.

Our stock price may be volatile. The stock market in general and the market for smaller pharmaceutical and biotechnology companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. As a result of this volatility, our stockholders may not be able to sell their shares at or above the price they paid for their shares. The market price for our common stock may be influenced by many factors, including:

the success of existing or new competitive products or technologies;
the timing of clinical trials of any of our current or future product candidates;
results of clinical trials of any existing or future product candidates;

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failure or discontinuation of any of our development programs;
results of clinical trials of product candidates of our competitors;
regulatory or legal developments in the United States and other countries;
the perception of the pharmaceutical and biotechnology industry by the public, legislatures, regulators and the investment community;
developments or disputes concerning patent applications, issued patents or other proprietary rights;
the recruitment or departure of key personnel;
the level of expenses related to any existing or future product candidates or clinical development programs;
the results of our efforts to develop, in-license or acquire additional product candidates or products;
actual or anticipated changes in estimates as to financial results or development timelines;
announcement or expectation of additional financing efforts;
sales of our common stock by us, our insiders or other stockholders;
variations in our financial results or those of companies that are perceived to be similar to us;
changes in estimates or recommendations by securities analysts, if any, that cover our stock;
changes in the structure of healthcare payment systems;
market conditions in the pharmaceutical and biotechnology sectors;
general economic, industry and market conditions; and
the other factors described in this "Risk Factors” section.

In addition, the stock market has experienced significant volatility, particularly with respect to pharmaceutical, biotechnology and other life sciences company stocks. The volatility of pharmaceutical, biotechnology and other life sciences company stocks often does not relate to the operating performance of the companies represented by the stock. In the past, securities class action litigation has often been initiated against companies following periods of volatility in their stock price, such as the two putative class action lawsuits filed in 2022 against us and certain of our former officers and the stockholder derivative actions filed in 2023 and 2024 against us and certain of our former officers. This type of litigation could result, and has in the past resulted, in substantial costs and divert our management’s attention and resources, and could also require us to make substantial payments to satisfy judgments or to settle litigation.

An active trading market for our common stock may not be sustained.

Although our common stock is listed on the Nasdaq Global Select Market, there is a risk that an active trading market for our shares may not continue to develop or be sustained. As a result, it may be difficult for our stockholders to sell their shares without depressing the market price for the shares, or at all.

If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our share price and trading volume could decline.

The trading market for our common stock relies in part on the research and reports that securities or industry analysts publish about us or our business. If only a few analysts provide coverage of us, the trading price of our stock would likely decline. If one or more of the analysts covering our business downgrade our stock or change their opinion of our stock, our stock price would likely decline. In addition, if one or more of these analysts cease coverage of our company or fail to regularly publish reports on us, we could lose visibility in the financial markets, which could cause our share price or trading volume to decline.

Unstable global economic and political conditions, including economic uncertainty tied to volatility in interest rates and inflation, credit and financial market instability, and uncertainty related to ongoing geopolitical conflicts, could adversely affect our business, financial condition, stock price and ability to raise capital.

Unstable global economic and political conditions, including economic uncertainty tied to volatility in interest rates and inflation, credit and financial market instability, and uncertainty related to ongoing geopolitical conflicts, could adversely affect our business, financial condition, stock price and ability to raise capital. The global economy, in particular the financial markets, have recently experienced significant disruption and volatility, including without limitation, as a result of volatility in interest rates and inflation, capital markets volatility, currency rate fluctuations, volatility in commodity prices, decline in consumer confidence and

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economic growth, supply chain disruptions, banking disruptions, and uncertainty resulting from geopolitical events, including trade wars, civil and political unrest, wars and other armed conflicts. In addition, market, interest rate, and inflation volatility may increase our cost of financing or restrict our access to potential sources of future capital. Furthermore, our stock price may further decline due in part to the volatility of the stock market and any general economic downturn.

If the disruption and volatility persist or heighten, it may impact our ability to raise sufficient additional capital on agreeable terms, if at all. If we are unable to raise sufficient additional capital, our business, financial condition, stock price and results of operations could be adversely affected, and we will need to implement cost reduction strategies, which could include delaying, reducing or altogether terminating both internal and external costs related to our operations and research and development programs. In addition, political developments impacting government spending and international trade, including changes in trade agreements, trade disputes, tariffs and investment restrictions, such as the ongoing trade dispute between the United States and China, may negatively impact markets and cause weaker macroeconomic conditions. These global economic and political factors could also strain certain of our suppliers and manufacturers, possibly resulting in supply disruptions or increased raw material or manufacturing costs, or adversely impacting their ability to manufacture clinical trial materials for any of our current or future product candidates. Any of the foregoing could harm our business and we cannot anticipate all of the ways in which the current economic and geopolitical climate and financial market conditions could adversely impact our business.

We have broad discretion in the use of our cash reserves and may not use them effectively.

Our management has broad discretion in the application of our cash reserves and could spend these funds in ways that do not improve our results of operations or enhance the value of our common stock. The failure by our management to apply these funds effectively could result in financial losses that could have a material adverse effect on our business, cause the price of our common stock to decline and delay the development of our current and future product candidates. Pending their use, we may invest our cash reserves in a manner that does not produce income or that loses value.

We are a smaller reporting company and the reduced disclosure requirements applicable to smaller reporting companies may make our common stock less attractive to investors.

We are subject to Section 404 of The Sarbanes-Oxley Act of 2002 ("Section 404”) and the related rules of the SEC, which generally require our management and independent registered public accounting firm to report on the effectiveness of our internal control over financial reporting. However, for so long as we remain a "smaller reporting company” ("SRC”) and non-accelerated filer, we intend to take advantage of certain exemptions from various reporting requirements, including, but not limited to, not being required to comply with the auditor attestation requirements of Section 404. Once we do not meet the definition of a SRC and non-accelerated filer or, if prior to such date, we opt to no longer take advantage of the applicable exemption, we will be required to include an attestation report from our independent registered public accounting firm on the effectiveness of our internal controls over financial reporting. We could continue to qualify as a SRC and non-accelerated filer if the market value of our common stock held by non-affiliates is below $75.0 million (or $700.0 million if our annual revenue is less than $100.0 million) as of June 30 in any given year.

We have incurred and will continue to incur increased costs as a result of operating as a public company, and our management will be required to devote substantial time to compliance initiatives and corporate governance practices.

As a public company, we incur significant legal, accounting and other expenses that we did not incur as a private company. Sarbanes-Oxley, the Dodd-Frank Wall Street Reform and Consumer Protection Act, the listing requirements of the Nasdaq Global Select Market and other applicable securities rules and regulations impose various requirements on public companies, including establishment and maintenance of effective disclosure and financial controls and corporate governance practices. Our management and other personnel devote a substantial amount of time to these compliance initiatives. Moreover, these rules and regulations have increased our legal and financial compliance costs and have made some activities more time-consuming and costly. For example, these rules and regulations have made it more difficult and more expensive for us to obtain director and officer liability insurance, which could make it more difficult for us to attract and retain qualified members of our Board of Directors. These rules and regulations are often subject to varying interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices.

Failure to maintain effective internal controls in accordance with Section 404 of Sarbanes-Oxley in the future could have a material adverse effect on our ability to produce accurate financial statements and on our stock price.

Section 404 of Sarbanes-Oxley requires us, on an annual basis, to review and evaluate our internal controls. To maintain compliance with Section 404, we are required to document and evaluate our internal control over financial reporting, which is both costly and challenging. We will need to continue to dedicate internal resources, continue to engage outside consultants and follow a detailed work plan to continue to assess and document the adequacy of internal control over financial reporting, continue to improve

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control processes as appropriate, validate through testing that controls are functioning as documented and implement a continuous reporting and improvement process for internal control over financial reporting. If we identify one or more material weaknesses, it could result in an adverse reaction in the financial markets due to a loss of confidence in the reliability of our financial statements.

A significant portion of our total outstanding shares may be sold into the market at any time, which could cause the market price of our common stock to decline significantly, even if our business is doing well.

Sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares of common stock intend to sell shares, could reduce the market price of our common stock. Our outstanding shares of common stock may be freely sold in the public market at any time to the extent permitted by Rules 144 and 701 under the Securities Act, or to the extent that such shares have already been registered under the Securities Act and are held by non-affiliates of ours. Moreover, holders of a substantial number of shares of our common stock have rights, subject to conditions, to require us to file registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or other stockholders. We also have registered all shares of common stock that we may issue under our equity compensation plans or that are issuable upon exercise of outstanding options. These shares can be freely sold in the public market upon issuance and once vested, subject to volume limitations applicable to affiliates. If any of these additional shares are sold, or if it is perceived that they will be sold, in the public market, the market price of our common stock could decline.

We do not anticipate paying any cash dividends on our capital stock in the foreseeable future. Accordingly, stockholders must rely on capital appreciation, if any, for any return on their investment.

We have never declared or paid cash dividends on our capital stock. We currently intend to retain all of our future earnings, if any, to finance the operation, development and growth of our business. To the extent that we enter into any future debt agreements, the terms of such agreements may also preclude us from paying dividends. As a result, capital appreciation, if any, of our common stock will be our stockholders’ sole source of gain for the foreseeable future.

Provisions in our corporate charter documents and under Delaware law could make an acquisition of us, which may be beneficial to our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove our current management.

Provisions in our Amended and Restated Certificate of Incorporation, as amended, and Amended and Restated Bylaws may discourage, delay or prevent a merger, acquisition or other change in control of us that our stockholders may consider favorable, including transactions in which our stockholders might otherwise receive a premium for their shares. These provisions could also limit the price that investors might be willing to pay in the future for shares of our common stock, thereby depressing the market price of our common stock. In addition, because our Board of Directors is responsible for appointing the members of our management team, these provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our Board of Directors. Among other things, these provisions:

establish a classified Board of Directors such that all members of the Board of Directors are not elected at one time;
allow the authorized number of our directors to be changed only by resolution of our Board of Directors;
limit the manner in which stockholders can remove directors from our Board of Directors;
establish advance notice requirements for nominations for election to our Board of Directors or for proposing matters that can be acted on at stockholder meetings;
require that stockholder actions must be effected at a duly called stockholder meeting and prohibit actions by our stockholders by written consent;
limit who may call a special meeting of stockholders;
authorize our Board of Directors to issue preferred stock without stockholder approval, which could be used to institute a "poison pill” that would work to dilute the stock ownership of a potential hostile acquirer, effectively preventing acquisitions that have not been approved by our Board of Directors; and
require the approval of the holders of at least 75% of the votes that all of our stockholders would be entitled to cast to amend or repeal certain provisions of our Amended and Restated Certificate of Incorporation, as amended, or Amended and Restated Bylaws.

Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law (the "DGCL”), which prohibits a person who owns 15% or more of our outstanding voting stock from merging or combining with us for a period of three years after the date of the transaction in which the person acquired 15% or more of our outstanding voting stock, unless the merger or combination is approved in a prescribed manner. This could discourage, delay or prevent someone from acquiring us or merging with us, whether or not it is desired by, or beneficial to, our stockholders.

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In addition, our Amended and Restated Certificate of Incorporation, as amended, to the fullest extent permitted by law, provides that the Court of Chancery of the State of Delaware will be the exclusive forum for: any derivative action or proceeding brought on our behalf; any action asserting a breach of fiduciary duty; any action asserting a claim against us arising pursuant to the DGCL, our Amended and Restated Certificate of Incorporation, as amended, or our Amended and Restated Bylaws; or any action asserting a claim against us that is governed by the internal affairs doctrine. This exclusive forum provision does not apply to suits brought to enforce a duty or liability created by the Exchange Act. It could apply, however, to a suit that falls within one or more of the categories enumerated in the exclusive forum provision and asserts claims under the Securities Act, inasmuch as Section 22 of the Securities Act creates concurrent jurisdiction for federal and state courts over all suits brought to enforce any duty or liability created by the Securities Act or the rule and regulations thereunder. There is uncertainty as to whether a court would enforce such provision with respect to claims under the Securities Act, and our stockholders will not be deemed to have waived our compliance with the federal securities laws and the rules and regulations thereunder.

This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or any of our directors, officers, or other employees, which may discourage lawsuits with respect to such claims. Alternatively, if a court were to find the choice of forum provisions contained in our Amended and Restated Certificate of Incorporation, as amended, to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our business, results of operations and financial condition.

Provisions in our Amended and Restated Certificate of Incorporation, as amended, and other provisions of Delaware law could limit the price that investors are willing to pay in the future for shares of our common stock.

We may become involved in securities litigation that could divert management’s attention and harm our business, and insurance coverage may not be sufficient to cover all costs and damages.

Securities litigation often follows certain significant business activities, such as the announcement of a strategic restructuring, or the announcement of negative events, such as negative results from clinical trials. We may be exposed to such litigation even if no wrongdoing occurred. We have in the past, and may in the future, become subject to securities litigation. For example, two putative class action lawsuits were filed in 2022 against us and certain of our former officers and stockholder derivative actions were filed in 2023 and 2024 against us and certain of our former officers. Litigation is usually expensive and diverts management’s attention and resources, which could adversely affect our business and cash resources and our ability to execute on our planned development of SP001, or the ultimate value our stockholders receive in such partnership or other opportunity.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

None.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not Applicable.

Item 5. Other Information.

Director and Officer Trading Arrangements

None of our directors or officers adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (as such terms are defined in Items 408(a) and 408(c) of Regulation S-K, respectively) during the quarterly period covered by this report.

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Item 6. Exhibits

 

Exhibit

Number

Exhibit Description

Filed with

this Report

Incorporated by

Reference herein from

Form or Schedule

Filing Date

SEC File /

Registration

Number

 

 

 

 

 

 

3.1

Amended and Restated Certificate of Incorporation of the Registrant

 

Form 8-K

(Exhibit 3.1)

11/6/2017

001-38266

 

 

 

 

 

3.2

Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Registrant

 

Form 8-K

(Exhibit 3.1)

8/18/2021

001-38266

 

 

 

 

 

 

3.3

 

Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Registrant

 

 

Form 8-K

(Exhibit 3.1)

 

6/25/2026

 

001-38266

 

 

 

 

 

 

 

3.4

Amended and Restated Bylaws of the Registrant

 

Form 10-Q

(Exhibit 3.1)

11/13/2023

001-38266

 

 

 

 

 

 

10.1

 

2026 Stock Incentive Plan

 

 

 

Form S-8

(Exhibit 99.1)

 

6/23/2026

 

333-296972

 

 

 

 

 

 

 

10.2

 

Form of Stock Option Agreement under the 2026 Stock Incentive Plan

 

X

 

 

 

 

 

 

 

 

 

 

10.3

 

Form of Restricted Stock Unit Agreement under the 2026 Stock Incentive Plan

 

X

 

 

 

 

 

 

 

 

 

 

10.4††

 

Exclusive License Agreement, dated July 8, 2026, by and between the Registrant and Innovent Biologics (Suzhou) Co., Ltd. and Fortvita Biologics (USA), Inc.

X

 

 

 

 

 

 

 

 

 

 

10.5††

 

Note Purchase and Guaranty Agreement dated July 8, 2026, by and between the Spero Holdings SPV, LLC, Spero SPV, LLC and the purchasers party thereto and HCR Spero SPV, LLC, as the purchaser representative for such purchasers

X

 

 

 

 

 

 

 

 

 

 

10.6††

 

Royalty and Milestone Payment Interest Purchase and Sale Agreement dated July 8, 2026, by and between Spero SPV, LLC and the purchasers party thereto and HCR Spero SPV, LLC, as the purchaser representative for such purchasers

X

 

 

 

 

 

 

 

 

 

 

10.7††

 

Limited Recourse Guaranty dated July 8, 2026, by and between the Registrant and HCR Spero SPV, LLC

X

 

 

 

 

 

 

 

 

 

 

10.8

 

Employment Agreement, dated August 3, 2026 by and between the Registrant and Debra Zack, M.D., PhD

X

 

 

 

 

 

 

 

 

 

 

10.9

 

Termination Agreement, dated August 11, 2026, by and between Registrant and Everest Medicines II Limited

X

 

 

 

 

 

 

 

 

 

 

31.1

Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

X

 

 

 

 

 

 

 

32.1*

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Principal Executive Officer and Principal Financial Officer

X

 

 

 

 

 

 

 

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101.INS

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101.SCH

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101.CAL

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101.DEF

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101.LAB

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101.PRE

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104

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†† Certain confidential portions of this Exhibit were omitted by means of marking such portions with brackets ("[***]”) because the identified confidential portions (i) are not material and (ii) is the type that the Registrant treats as private or confidential.

* The certification attached as Exhibit 32.1 that accompanies this Quarterly Report on Form 10-Q is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of Spero Therapeutics, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Form 10-Q, irrespective of any general incorporation language contained in such filing.

85


 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 

 

 

SPERO THERAPEUTICS, INC.

 

 

 

 

Date: August 12, 2026

 

By:

/s/ Esther Rajavelu

 

 

 

Esther Rajavelu

 

 

 

President, Chief Executive Officer, Chief Financial Officer, Chief Business Officer and Treasurer

 

 

 

(Principal Executive, Financial and Accounting Officer)

 

i


Exhibit 10.2

Option No. _______

SPERO THERAPEUTICS, INC.

Stock Option Grant Notice

Stock Option Grant under the Company’s

2026 Stock Incentive Plan

 

1.

Name and Address of Participant:

 

 

 

 

 

 

 

 

 

 

2.

Date of Option Grant:

 

 

 

 

3.

Type of Grant:

 

 

 

 

4.

Maximum Number of Shares for which this Option is exercisable:

 

 

 

 

5.

Exercise (purchase) price per share:

 

 

 

 

6.

Option Expiration Date:

 

 

 

 

7.

Vesting Start Date:

 

 

8.

Vesting Schedule: This Option shall become exercisable (and the Shares issued upon exercise shall be vested) as follows provided the Participant is an Employee, director or Consultant of the Company or of an Affiliate on the applicable vesting date:

[Vesting Schedule Description]

The foregoing rights are cumulative and are subject to the other terms and conditions of this Agreement.

The Company and the Participant acknowledge receipt of this Stock Option Grant Notice and agree to the terms of the Stock Option Agreement attached hereto and incorporated by reference herein, the Company’s 2026 Stock Incentive Plan, and the terms of this Option as set forth above.

 

SPERO THERAPEUTICS, INC.

 

 

 

 

By:

 

 

Name:

 

Title:

 

 

Participant

 


SPERO THERAPEUTICS, INC.

STOCK OPTION AGREEMENT –

INCORPORATED TERMS AND CONDITIONS

AGREEMENT (this “Agreement”) made as of the date of grant set forth in the Stock Option Grant Notice by and between Spero Therapeutics, Inc. (the “Company”), a Delaware corporation, and the individual whose name appears on the Stock Option Grant Notice (the “Participant”).

WHEREAS, the Company has adopted the 2026 Stock Incentive Plan (the “Plan”), to promote the interests of the Company by providing an incentive for Employees, directors and Consultants of the Company and its Affiliates;

WHEREAS, pursuant to the provisions of the Plan, the Company desires to grant to the Participant an Option to purchase shares of its common stock, $0.001 par value per share (the “Shares”), in accordance with the provisions of the Plan, all on the terms and conditions hereinafter set forth;

WHEREAS, the Company and the Participant each intend that the Option granted herein shall be of the type set forth in the Stock Option Grant Notice; and

WHEREAS, the Company and the Participant understand and agree that any terms used and not defined herein have the meanings ascribed to such terms in the Plan.

NOW, THEREFORE, in consideration of the promises and the mutual covenants contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

1.
Grant of Option. The Company hereby grants to the Participant the right and option to purchase all or any part of an aggregate of the number of Shares set forth in the Stock Option Grant Notice, on the terms and conditions and subject to all the limitations set forth herein, under United States securities and tax laws, and in the Plan, which is incorporated herein by reference. The Participant acknowledges receipt of a copy of the Plan.
2.
Exercise Price. The exercise price of the Shares covered by the Option shall be the amount per Share set forth in the Stock Option Grant Notice, subject to adjustment, as provided in the Plan, in the event of a stock split, reverse stock split or other events affecting the holders of Shares after the date hereof (the “Exercise Price”). Payment shall be made in accordance with Paragraph 9 of the Plan.
3.
Exercisability of Option.

Subject to the terms and conditions set forth in this Agreement and the Plan, the Option granted hereby shall become vested and exercisable as set forth in the Stock Option Grant Notice and is subject to the other terms and conditions of this Agreement and the Plan.

In the event that a Change of Control (as defined below) occurs and within a period of one (1) year following the Change of Control the Participant’s employment is terminated other than for Cause, death or Disability, this Option shall become immediately exercisable in full (and the Shares issued upon exercise shall be vested) as of the Termination Date (as defined below).

For purposes of this Agreement, “Change of Control” shall mean the occurrence of any of the following events: (i) Ownership. Any “Person” (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as amended) becomes the “Beneficial Owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the total voting power represented by the Company’s then outstanding voting securities (excluding for this purpose any such voting securities held by the Company, or any affiliate, parent or subsidiary of the Company, or by any employee benefit plan of the Company) pursuant to a transaction or a series of related transactions; or (ii) Merger/Sale of Assets. (A) A merger or consolidation of the Company whether or not approved by the Board of Directors, other than a merger or consolidation which would


result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or the parent of such corporation) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity or parent of such corporation, as the case may be, outstanding immediately after such merger or consolidation; or (B) the Company’s stockholders approve an agreement for the sale or disposition by the Company of all or substantially all of the Company’s assets; or (iii) Change in Board Composition. A change in the composition of the Board of Directors, as a result of which fewer than a majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (A) are directors of the Company as of the date of this Agreement, or (B) are elected, or nominated for election, to the Board of Directors with the affirmative votes of at least a majority of the Incumbent Directors, or by a committee of the Board of Directors made up of at least a majority of the Incumbent Directors, at the time of such election or nomination (but shall not include an individual whose election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors).

4.
Term of Option.

This Option shall terminate on the Option Expiration Date as specified in the Stock Option Grant Notice and, if this Option is designated in the Stock Option Grant Notice as an ISO and the Participant owns as of the date hereof more than 10% of the total combined voting power of all classes of capital stock of the Company or an Affiliate, such date may not be more than five years from the date of this Agreement, but shall be subject to earlier termination as provided herein or in the Plan.

If the Participant ceases to be an Employee, director or Consultant of the Company or of an Affiliate for any reason other than the death or Disability of the Participant, or termination of the Participant for Cause (the “Termination Date”), the Option to the extent then vested and exercisable pursuant to Section 3 hereof as of the Termination Date, and not previously terminated in accordance with this Agreement, may be exercised within three months after the Termination Date, or on or prior to the Option Expiration Date as specified in the Stock Option Grant Notice, whichever is earlier, but may not be exercised thereafter except as set forth below. In such event, the unvested portion of the Option shall not be exercisable and shall expire and be cancelled on the Termination Date.

For the avoidance of doubt, if the Participant ceases to be an Employee of the Company or of an Affiliate but continues after termination of employment to provide service to the Company or an Affiliate as a director or Consultant (or vice versa), this Option shall continue to vest in accordance with Section 3 until the Participant is no longer providing any services to the Company solely to the extent determined by the Administrator. If the Administrator determines that vesting shall continue to vest following a termination of employment and if this Option is designated in the Stock Option Grant Notice as an ISO, this Option shall automatically convert and be deemed a Non-Qualified Option as of the date that is three months from termination of the Participant’s employment and this Option shall continue on the same terms and conditions set forth herein until such Participant is no longer providing service to the Company or an Affiliate. If the Administrator does not determine that vesting shall continue following a change in status, the unvested portion of the Option shall not be exercisable and shall expire and be cancelled on the Termination Date as described above.

Notwithstanding the foregoing, in the event of the Participant’s Disability or death within three months after the Termination Date, the Participant or the Participant’s Survivors may exercise the Option within one year after the Termination Date, but in no event after the Option Expiration Date as specified in the Stock Option Grant Notice.

In the event the Participant’s service is terminated by the Company or an Affiliate for Cause, the Participant’s right to exercise any unexercised portion of this Option even if vested shall cease immediately as of the time the Participant is notified his or her service is terminated for Cause, and this Option shall thereupon terminate. Notwithstanding anything herein to the contrary, if subsequent to the Participant’s termination, but prior to the exercise of the Option, the Administrator determines that, either prior or subsequent to the Participant’s termination, the Participant engaged in conduct which would constitute Cause, then the Participant shall immediately cease to have any right to exercise the Option and this Option shall thereupon terminate.

In the event of the Disability of the Participant, as determined in accordance with the Plan, the Option shall be exercisable within one year after the Participant’s termination of service due to Disability or, if earlier, on or prior


to the Option Expiration Date as specified in the Stock Option Grant Notice. In such event, the Option shall be exercisable:

(a)
to the extent that the Option has become exercisable but has not been exercised as of the date of the Participant’s termination of service due to Disability; and
(b)
in the event rights to exercise the Option accrue periodically, to the extent of a pro rata portion through the date of the Participant’s termination of service due to Disability of any additional vesting rights that would have accrued on the next vesting date had the Participant not become Disabled. The proration shall be based upon the number of days accrued in the current vesting period prior to the date of the Participant’s termination of service due to Disability.

In the event of the death of the Participant while an Employee, director or Consultant of the Company or of an Affiliate, the Option shall be exercisable by the Participant’s Survivors within one year after the date of death of the Participant or, if earlier, on or prior to the Option Expiration Date as specified in the Stock Option Grant Notice. In such event, the Option shall be exercisable:

(x)
to the extent that the Option has become exercisable but has not been exercised as of the date of death; and
(y)
in the event rights to exercise the Option accrue periodically, to the extent of a pro rata portion through the date of death of any additional vesting rights that would have accrued on the next vesting date had the Participant not died. The proration shall be based upon the number of days accrued in the current vesting period prior to the Participant’s date of death.
5.
Method of Exercising Option. Subject to the terms and conditions of this Agreement, the Option may be exercised by written notice to the Company or its designee, in such form acceptable to the Company, which may include electronic notice. Such notice shall state the number of Shares with respect to which the Option is being exercised and shall be signed by the person exercising the Option (which signature may be provided electronically in a form acceptable to the Company). Payment of the Exercise Price for such Shares shall be made in accordance with Paragraph 9 of the Plan. The Company shall deliver such Shares as soon as practicable after the notice shall be received, provided, however, that the Company may delay issuance of such Shares until completion of any action or obtaining of any consent, which the Company deems necessary under any applicable law (including, without limitation, state securities or “blue sky” laws). The Shares as to which the Option shall have been so exercised shall be registered in the Company’s share register in the name of the person so exercising the Option (or, if the Option shall be exercised by the Participant and if the Participant shall so request in the notice exercising the Option, shall be registered in the Company’s share register in the name of the Participant and another person jointly, with right of survivorship) and shall be delivered as provided above to or upon the written order of the person exercising the Option. In the event the Option shall be exercised, pursuant to Section 4 hereof, by any person other than the Participant, such notice shall be accompanied by appropriate proof of the right of such person to exercise the Option. All Shares that shall be purchased upon the exercise of the Option as provided herein shall be fully paid and nonassessable.
6.
Partial Exercise. Exercise of this Option, to the extent stated above, may be made in part at any time and from time to time within the above limits, except that no fractional share shall be issued pursuant to this Option.
7.
Non-Assignability. The Option shall not be transferable by the Participant otherwise than by will or by the laws of descent and distribution. If this Option is a Non-Qualified Option then it may also be transferred (i) pursuant to a qualified domestic relations order as defined by the Code or Title I of the Employee Retirement Income Security Act or the rules thereunder or (ii) for no consideration to or for the benefit of the Participant’s Immediate Family (including, without limitation, to a trust for the benefit of the Participant’s Immediate Family or to a partnership or limited liability company for one or more members of the Participant’s Immediate Family), and the transferee shall remain subject to all the terms and conditions applicable to the Option prior to such transfer and each such transferee shall so acknowledge in writing as a condition precedent to the effectiveness of such transfer. The term “Immediate Family” shall mean the Participant’s spouse, former spouse, parents, children, stepchildren, adoptive relationships, sisters, brothers, nieces, nephews and grandchildren (and, for this purpose, shall also include the Participant). Except as provided above in this paragraph, the Option shall be exercisable, during the Participant’s lifetime, only by the

Participant (or, in the event of legal incapacity or incompetency, by the Participant’s guardian or representative) and shall not be assigned, pledged or hypothecated in any way (whether by operation of law or otherwise) and shall not be subject to execution, attachment or similar process. Any attempted transfer, assignment, pledge, hypothecation or other disposition of the Option or of any rights granted hereunder contrary to the provisions of this Section 7, or the levy of any attachment or similar process upon the Option shall be null and void.
8.
No Rights as Stockholder until Exercise. The Participant shall have no rights as a stockholder with respect to Shares subject to this Agreement until registration of the Shares in the Company’s share register in the name of the Participant. Except as is expressly provided in the Plan with respect to certain changes in the capitalization of the Company, no adjustment shall be made for dividends or similar rights for which the record date is prior to the date of such registration.
9.
Adjustments. The Plan contains provisions covering the treatment of Options in a number of contingencies such as stock splits and mergers. Provisions in the Plan for adjustment with respect to stock subject to Options and the related provisions with respect to successors to the business of the Company are hereby made applicable hereunder and are incorporated herein by reference.
10.
Taxes.

The Participant acknowledges and agrees that (i) any income or other taxes due from the Participant with respect to this Option or the Shares issuable upon exercise of this Option shall be the Participant’s responsibility; (ii) the Participant was free to use professional advisors of his or her choice in connection with this Agreement, has received advice from his or her professional advisors in connection with this Agreement, understands its meaning and import, and is entering into this Agreement freely and without coercion or duress; (iii) the Participant has not received and is not relying upon any advice, representations or assurances made by or on behalf of the Company or any Affiliate or any employee of or counsel to the Company or any Affiliate regarding any tax or other effects or implications of the Option, the Shares or other matters contemplated by this Agreement; and (iv) neither the Administrator, the Company, its Affiliates, nor any of its officers or directors, shall be held liable for any applicable costs, taxes, or penalties associated with the Option if, in fact, the Internal Revenue Service were to determine that the Option constitutes deferred compensation under Section 409A of the Code.

If this Option is designated in the Stock Option Grant Notice as a Non-Qualified Option or if the Option is an ISO and is converted into a Non-Qualified Option and such Non-Qualified Option is exercised, the Participant agrees that the Company may withhold from the Participant’s remuneration, if any, the minimum statutory amount of federal, state and local withholding taxes attributable to such amount that is considered compensation includable in such person’s gross income. At the Company’s discretion, the amount required to be withheld may be withheld in cash from such remuneration, or in kind from the Shares otherwise deliverable to the Participant on exercise of the Option. The Participant further agrees that, if the Company does not withhold an amount from the Participant’s remuneration sufficient to satisfy the Company’s income tax withholding obligation, the Participant will reimburse the Company on demand, in cash, for the amount under-withheld.

11.
If Option is Intended to be an ISO.

If this Option is designated in the Stock Option Grant Notice as an ISO so that the Participant (or the Participant’s Survivors) may qualify for the favorable tax treatment provided to holders of Options that meet the standards of Section 422 of the Code then any provision of this Agreement or the Plan which conflicts with the Code so that this Option would not be deemed an ISO is null and void and any ambiguities shall be resolved so that the Option qualifies as an ISO. The Participant should consult with the Participant’s own tax advisors regarding the tax effects of the Option and the requirements necessary to obtain favorable tax treatment under Section 422 of the Code, including, but not limited to, holding period requirements.


Notwithstanding the foregoing, to the extent that the Option is designated in the Stock Option Grant Notice as an ISO and is not deemed to be an ISO pursuant to Section 422(d) of the Code because the aggregate Fair Market Value (determined as of the Date of Option Grant) of any of the Shares with respect to which this ISO is granted becomes exercisable for the first time during any calendar year in excess of $100,000, the portion of the Option representing such excess value shall be treated as a Non-Qualified Option and the Participant shall be deemed to have taxable income measured by the difference between the then Fair Market Value of the Shares received upon exercise and the price paid for such Shares pursuant to this Agreement.

Neither the Company nor any Affiliate shall have any liability to the Participant, or any other party, if the Option (or any part thereof) that is intended to be an ISO is not an ISO or for any action taken by the Administrator, including without limitation the conversion of an ISO to a Non-Qualified Option.

12.
Notice to Company of Disqualifying Disposition of an ISO. If this Option is designated in the Stock Option Grant Notice as an ISO then the Participant agrees to notify the Company in writing immediately after the Participant makes a Disqualifying Disposition of any of the Shares acquired pursuant to the exercise of the ISO. A Disqualifying Disposition is defined in Section 424(c) of the Code and includes any disposition (including any sale) of such Shares before the later of (a) two years after the date the Participant was granted the ISO or (b) one year after the date the Participant acquired Shares by exercising the ISO, except as otherwise provided in Section 424(c) of the Code. If the Participant has died before the Shares are sold, these holding period requirements do not apply and no Disqualifying Disposition can occur thereafter.
13.
Notices. Any notices required or permitted by the terms of this Agreement or the Plan shall be given by recognized courier service, facsimile, registered or certified mail, return receipt requested, addressed as follows:

If to the Company:

Spero Therapeutics, Inc.

675 Massachusetts Avenue

Cambridge, MA 02139

Attention: Chief Financial Officer

If to the Participant, at the address set forth on the Stock Option Grant Notice or to such other address or addresses of which notice in the same manner has previously been given. Any such notice shall be deemed to have been given upon the earliest of receipt, one business day following delivery by the sender to a recognized courier service or three business days following mailing by registered or certified mail.

14.
Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to its internal principles governing the conflict of law. For the purpose of litigating any dispute that arises under this Agreement, the parties hereby consent to exclusive jurisdiction in the Commonwealth of Massachusetts and agree that such litigation shall be conducted in the state courts of Suffolk County, Massachusetts or the federal courts of the United States for the District of Massachusetts.
15.
Benefit of Agreement. Subject to the provisions of the Plan and the other provisions hereof, this Agreement shall be for the benefit of and shall be binding upon the heirs, executors, administrators, successors and assigns of the parties hereto.
16.
Entire Agreement. This Agreement, together with the Plan, embodies the entire agreement and understanding between the parties hereto with respect to the subject matter hereof and supersedes all prior oral or written agreements and understandings relating to the subject matter hereof (with the exception of acceleration of vesting provisions contained in any other agreement with the Company). No statement, representation, warranty, covenant or agreement not expressly set forth in this Agreement shall affect or be used to interpret, change or restrict the express terms and provisions of this Agreement. Notwithstanding the foregoing in all events, this Agreement shall be subject to and governed by the Plan.

17.
Modifications and Amendments. The terms and provisions of this Agreement may be modified or amended as provided in the Plan.
18.
Waivers and Consents. Except as provided in the Plan, the terms and provisions of this Agreement may be waived, or consent for the departure therefrom granted, only by written document executed by the party entitled to the benefits of such terms or provisions. No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with respect to any other terms or provisions of this Agreement, whether or not similar. Each such waiver or consent shall be effective only in the specific instance and for the purpose for which it was given, and shall not constitute a continuing waiver or consent.
19.
Data Privacy. By entering into this Agreement, the Participant: (i) authorizes the Company and each Affiliate, and any agent of the Company or any Affiliate administering the Plan or providing Plan recordkeeping services, to disclose to the Company or any of its Affiliates such information and data as the Company or any such Affiliate shall request in order to facilitate the grant of options and the administration of the Plan; and (ii) authorizes the Company and each Affiliate to store and transmit such information in electronic form for the purposes set forth in this Agreement.

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Exhibit 10.3

Restricted Stock Unit No.___________

SPERO THERAPEUTICS, INC.

Restricted Stock Unit Award Grant Notice

Restricted Stock Unit Award Grant under the Company’s

2026 Stock Incentive Plan

 

1.

Name and Address of Participant:

 

 

 

 

 

 

 

 

 

 

2.

Date of Grant of

 

 

Restricted Stock Unit Award:

 

 

 

 

3.

Maximum Number of Shares underlying

 

 

Restricted Stock Unit Award:

 

 

 

 

4.

Vesting Start Date:

 

 

 

5.

Vesting Schedule: This Restricted Stock Unit Award shall vest as follows provided the Participant is an Employee, director or Consultant of the Company or of an Affiliate on the applicable vesting date:

[Vesting Schedule Description]

The foregoing rights are cumulative and are subject to the other terms and conditions of this Agreement.

The Company and the Participant acknowledge receipt of this Restricted Stock Unit Award Grant Notice and agree to the terms of the Restricted Stock Unit Agreement attached hereto and incorporated by reference herein, the Company’s 2026 Stock Incentive Plan, and the terms of this Restricted Stock Unit Award as set forth above.

 

SPERO THERAPEUTICS, INC.

 

By:

 

 

Name:

 

Title:

 

 

Participant

 


SPERO THERAPEUTICS, INC.

RESTRICTED STOCK UNIT AGREEMENT –

INCORPORATED TERMS AND CONDITIONS

AGREEMENT (this “Agreement”) made as of the date of grant set forth in the Restricted Stock Unit Award Grant Notice by and between Spero Therapeutics, Inc. (the “Company”), a Delaware corporation, and the individual whose name appears on the Restricted Stock Unit Award Grant Notice (the “Participant”).

WHEREAS, the Company has adopted the 2026 Stock Incentive Plan (the “Plan”), to promote the interests of the Company by providing an incentive for Employees, directors and Consultants of the Company and its Affiliates;

WHEREAS, pursuant to the provisions of the Plan, the Company desires to grant to the Participant restricted stock units (“RSUs”) related to the Company’s common stock, $0.001 par value per share (“Common Stock”), in accordance with the provisions of the Plan, all on the terms and conditions hereinafter set forth; and

WHEREAS, the Company and the Participant understand and agree that any terms used and not defined herein have the meanings ascribed to such terms in the Plan.

NOW, THEREFORE, in consideration of the promises and the mutual covenants contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

1.
Grant of Award. The Company hereby grants to the Participant an award for the number of RSUs set forth in the Restricted Stock Unit Award Grant Notice (the “Award”). Each RSU represents a contingent entitlement of the Participant to receive one share of Common Stock, on the terms and conditions and subject to all the limitations set forth herein and in the Plan, which is incorporated herein by reference. The Participant acknowledges receipt of a copy of the Plan.
2.
Vesting of Award.
(a)
Subject to the terms and conditions set forth in this Agreement and the Plan, the Award granted hereby shall vest as set forth in the Restricted Stock Unit Award Grant Notice and is subject to the other terms and conditions of this Agreement and the Plan. On each vesting date set forth in the Restricted Stock Unit Award Grant Notice, the Participant shall be entitled to receive such number of shares of Common Stock equivalent to the number of RSUs as set forth in the Restricted Stock Unit Award Grant Notice provided that the Participant is employed or providing service to the Company or an Affiliate on such vesting date. Such shares of Common Stock shall thereafter be delivered by the Company to the Participant within five business days of the applicable vesting date and in accordance with this Agreement and the Plan.
(b)
Except as otherwise set forth in this Agreement, including Section 2(c) hereof, if the Participant ceases to be employed or providing services for any reason by the Company or by an Affiliate (the “Termination”) prior to a vesting date set forth in the Restricted Stock Unit Award Grant Notice, then as of the date on which the Participant’s employment or service terminates, all unvested RSUs shall immediately be forfeited to the Company and this Agreement shall terminate and be of no further force or effect. For the avoidance of doubt, if the Participant ceases to be an Employee of the Company or of an Affiliate but continues after termination of employment to provide service to the Company or an Affiliate as a director or Consultant (or vice versa), this Award shall continue to vest in accordance with this Section 2 until the Participant is no longer providing any services to the Company solely to the extent determined by the Administrator. If no such determination is made, the unvested RSUs shall immediately be forfeited to the Company as described above.

(c)
In the event that a Change of Control (as defined below) occurs and within a period of one (1) year following the Change of Control the Participant’s employment is terminated other than for Cause, death or Disability, all unvested RSUs shall immediately become fully vested as of the date of termination. For purposes of this Agreement, “Change of Control” shall mean the occurrence of any of the following events: (i) Ownership. Any “Person” (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as amended) becomes the “Beneficial Owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the total voting power represented by the Company’s then outstanding voting securities (excluding for this purpose any such voting securities held by the Company, or any affiliate, parent or subsidiary of the Company, or by any employee benefit plan of the Company) pursuant to a transaction or a series of related transactions; or (ii) Merger/Sale of Assets. (A) A merger or consolidation of the Company whether or not approved by the Board of Directors, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or the parent of such corporation) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity or parent of such corporation, as the case may be, outstanding immediately after such merger or consolidation; or (B) the Company’s stockholders approve an agreement for the sale or disposition by the Company of all or substantially all of the Company’s assets; or (iii) Change in Board Composition. A change in the composition of the Board of Directors, as a result of which fewer than a majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (A) are directors of the Company as of the date of this Agreement, or (B) are elected, or nominated for election, to the Board of Directors with the affirmative votes of at least a majority of the Incumbent Directors, or by a committee of the Board of Directors made up of at least a majority of the Incumbent Directors, at the time of such election or nomination (but shall not include an individual whose election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors).
3.
Prohibitions on Transfer and Sale. This Award (including any additional RSUs received by the Participant as a result of stock dividends, stock splits or any other similar transaction affecting the Company’s securities without receipt of consideration) shall not be transferable by the Participant otherwise than (i) by will or by the laws of descent and distribution, or (ii) pursuant to a qualified domestic relations order as defined by the Internal Revenue Code or Title I of the Employee Retirement Income Security Act or the rules thereunder. Except as provided in the previous sentence, the shares of Common Stock to be issued pursuant to this Agreement shall be issued, during the Participant’s lifetime, only to the Participant (or, in the event of legal incapacity or incompetence, to the Participant’s guardian or representative). This Award shall not be assigned, pledged or hypothecated in any way (whether by operation of law or otherwise) and shall not be subject to execution, attachment or similar process. Any attempted transfer, assignment, pledge, hypothecation or other disposition of this Award or of any rights granted hereunder contrary to the provisions of this Section 3, or the levy of any attachment or similar process upon this Award shall be null and void.
4.
Adjustments. The Plan contains provisions covering the treatment of RSUs and shares of Common Stock in a number of contingencies such as stock splits. Provisions in the Plan for adjustment with respect to this Award and the related provisions with respect to successors to the business of the Company are hereby made applicable hereunder and are incorporated herein by reference.
5.
Securities Law Compliance. The Participant specifically acknowledges and agrees that any sales of shares of Common Stock shall be made in accordance with the requirements of the Securities Act of 1933, as amended. The Company currently has an effective registration statement on file with the Securities and Exchange Commission with respect to the Common Stock to be granted hereunder. The Company intends to maintain this registration statement but has no obligation to do so. If the registration statement ceases to be effective for any reason, Participant will not be able to transfer or sell any of the shares of Common Stock issued to the Participant pursuant to this Agreement unless exemptions from registration or filings under applicable securities laws are available. Furthermore, despite registration, applicable securities laws may restrict the ability of the Participant to sell his or her Common Stock, including due to the Participant’s affiliation with the Company. The Company shall not be obligated to either issue the Common Stock or permit the resale of any shares of Common Stock if such issuance or resale would violate any applicable securities law, rule or regulation.

6.
Rights as a Stockholder. The Participant shall have no right as a stockholder, including voting and dividend rights, with respect to the RSUs subject to this Agreement.
7.
Incorporation of the Plan. The Participant specifically understands and agrees that the RSUs and the shares of Common Stock to be issued under the Plan will be issued to the Participant pursuant to the Plan, a copy of which Plan the Participant acknowledges he or she has read and understands and by which Plan he or she agrees to be bound. The provisions of the Plan are incorporated herein by reference.
8.
Tax Liability of the Participant and Payment of Taxes.
(a)
The Participant acknowledges and agrees that any income or other taxes due from the Participant with respect to this Award or the shares of Common Stock to be issued pursuant to this Agreement or otherwise sold shall be the Participant’s responsibility. Without limiting the foregoing, the Participant agrees that if under applicable law the Participant will owe taxes at each vesting date on the portion of the Award then vested the Company shall be entitled to immediate payment from the Participant of the amount of any tax or other amounts required to be withheld by the Company by applicable law or regulation.
(b)
The Participant acknowledges and agrees that the Company has the right to deduct from payments of any kind otherwise due to the Participant any federal, state, local or other taxes of any kind required by law to be withheld with respect to the vesting of the RSUs. To the extent the Participant has not previously executed and delivered to the Company an effective durable automatic sell-to-cover instruction that by its terms would cover any taxes required by law to be withheld with respect to the vesting of the RSUs, at such time as the Participant is not aware of any material nonpublic information about the Company or the Common Stock and the Participant is not subject to any restriction on trading activities with respect to the Common Stock pursuant to any Company insider trading or other policy, the Participant shall execute the instruction set forth in Schedule A attached hereto (the “Durable Automatic Sell-to-Cover Instruction”) as the means of satisfying such tax obligation. If the Participant is required to but does not execute the Durable Automatic Sell-to-Cover Instruction prior to an applicable vesting date, then the Participant agrees that if under applicable law the Participant will owe taxes at such vesting date on the portion of the Award then vested, the Company shall be entitled to immediate payment from the Participant of the amount of any tax required to be withheld by the Company. The Company shall not deliver any shares of Common Stock to the Participant until it is satisfied that all required withholdings have been made.
9.
Participant Acknowledgements.

The Participant acknowledges the following:

(a)
The Company is not by the Plan or this Award obligated to continue the Participant as an Employee, director or Consultant of the Company or an Affiliate.
(b)
The Plan is discretionary in nature and may be suspended or terminated by the Company at any time.
(c)
The grant of this Award is considered a one-time benefit and does not create a contractual or other right to receive any other award under the Plan, benefits in lieu of awards or any other benefits in the future.
(d)
The Plan is a voluntary program of the Company and future awards, if any, will be at the sole discretion of the Company, including, but not limited to, the timing of any grant, the amount of any award, vesting provisions and the purchase price, if any.
(e)
The value of this Award is an extraordinary item of compensation outside of the scope of the Participant’s employment or consulting contract, if any. As such the Award is not part of normal or expected compensation for purposes of calculating any severance, resignation, redundancy, end of service payments, bonuses, long-service awards, pension or retirement benefits or similar payments. The future value of the shares of Common Stock is unknown and cannot be predicted with certainty.

10.
Notices. Any notices required or permitted by the terms of this Agreement or the Plan shall be given by recognized courier service, facsimile, registered or certified mail, return receipt requested, addressed as follows:

If to the Company:

Spero Therapeutics, Inc.

675 Massachusetts Avenue

Cambridge, MA 02139

Attention: Chief Financial Officer

If to the Participant at the address set forth on the Restricted Stock Unit Award Grant Notice or to such other address or addresses of which notice in the same manner has previously been given. Any such notice shall be deemed to have been given on the earliest of receipt, one business day following delivery by the sender to a recognized courier service, or three business days following mailing by registered or certified mail.

11.
Assignment and Successors.
(a)
This Agreement is personal to the Participant and without the prior written consent of the Company shall not be assignable by the Participant otherwise than by will or the laws of descent and distribution. This Agreement shall inure to the benefit of and be enforceable by the Participant’s legal representatives.
(b)
This Agreement shall inure to the benefit of and be binding upon the Company and its successors and assigns.
12.
Governing Law. This Agreement shall be construed and enforced in accordance with the laws of the State of Delaware, without giving effect to the conflict of law principles thereof. For the purpose of litigating any dispute that arises under this Agreement, whether at law or in equity, the parties hereby consent to exclusive jurisdiction in the Commonwealth of Massachusetts and agree that such litigation shall be conducted in the state courts of Suffolk County, Massachusetts or the federal courts of the United States for the District of Massachusetts.
13.
Severability. If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction, then such provision or provisions shall be modified to the extent necessary to make such provision valid and enforceable, and to the extent that this is impossible, then such provision shall be deemed to be excised from this Agreement, and the validity, legality and enforceability of the rest of this Agreement shall not be affected thereby.
14.
Entire Agreement. This Agreement, together with the Plan, constitutes the entire agreement and understanding between the parties hereto with respect to the subject matter hereof and supersedes all prior oral or written agreements and understandings relating to the subject matter hereof. No statement, representation, warranty, covenant or agreement not expressly set forth in this Agreement shall affect or be used to interpret, change or restrict the express terms and provisions of this Agreement provided, however, in any event, this Agreement shall be subject to and governed by the Plan.
15.
Modifications and Amendments; Waivers and Consents. The terms and provisions of this Agreement may be modified or amended as provided in the Plan. Except as provided in the Plan, the terms and provisions of this Agreement may be waived, or consent for the departure therefrom granted, only by written document executed by the party entitled to the benefits of such terms or provisions. No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with respect to any other terms or provisions of this Agreement, whether or not similar. Each such waiver or consent shall be effective only in the specific instance and for the purpose for which it was given, and shall not constitute a continuing waiver or consent.

16.
Section 409A. The Award of RSUs evidenced by this Agreement is intended to be exempt from the nonqualified deferred compensation rules of Section 409A of the Code as a “short term deferral” (as that term is used in the final regulations and other guidance issued under Section 409A of the Code, including Treasury Regulation Section 1.409A-1(b)(4)(i)), and shall be construed accordingly.
17.
Data Privacy. By entering into this Agreement, the Participant: (i) authorizes the Company and each Affiliate, and any agent of the Company or any Affiliate administering the Plan or providing Plan recordkeeping services, to disclose to the Company or any of its Affiliates such information and data as the Company or any such Affiliate shall request in order to facilitate the grant of Awards and the administration of the Plan; (ii) to the extent permitted by applicable law waives any data privacy rights he or she may have with respect to such information; and (iii) authorizes the Company and each Affiliate to store and transmit such information in electronic form for the purposes set forth in this Agreement.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


SCHEDULE A

DURABLE AUTOMATIC SELL-TO-COVER INSTRUCTION

This Durable Automatic Sell-to-Cover Instruction (this “Instruction”), which is being delivered to Spero Therapeutics, Inc. (the “Company”) by the undersigned on the date set forth below (the “Adoption Date”), relates to the Covered RSUs (as defined following my signature below). This Instruction provides for “eligible sell-to-cover transactions” (as described in Rule 10b5-1(c)(1)(ii)(D)(3) under the Securities Exchange Act of 1934 (the “Exchange Act”)) and is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c)(1) under the Exchange Act.

I acknowledge that upon vesting and settlement of any Covered RSUs in accordance with the applicable RSU’s terms, whether vesting is based on the passage of time or the achievement of performance goals, I will have compensation income equal to the fair market value of the shares of the Company’s common stock subject to the RSUs that are settled on such settlement date and that the Company is required to withhold income and employment taxes in respect of that compensation income.

I desire to establish a plan and process to satisfy such withholding obligation in respect of all Covered RSUs through an automatic sale of the number of the shares of the common stock that would otherwise be issuable to me on each applicable settlement date in an amount sufficient to satisfy the applicable withholding obligation, with the proceeds of the sale delivered to the Company in satisfaction of the applicable withholding obligation.

I understand that the Company has arranged for the administration and execution of its equity incentive programs and the sale of securities by participants thereunder pursuant to a platform administered by a third party (the “Administrator”) and the Administrator’s designated brokerage partner.

Upon the settlement of any of my Covered RSUs after the 30th day following the Adoption Date (or if I am an officer of the Company on the Adoption Date, after the later of: (i) the 90th day following the Adoption Date or (ii) two business days following the disclosure of the Company’s financial results in Form 10-Q or Form 10-K for the completed fiscal quarter in which this Instruction was adopted (or, with respect to this clause (ii), if sooner, the 120th day after adoption of this Instruction)) (the “Cooling-Off Period”), I hereby appoint the Administrator (or any successor administrator) to automatically sell such number of shares of the Company’s common stock issuable with respect to such RSUs that vested and settled as is sufficient to generate net proceeds sufficient to satisfy the Company’s minimum statutory withholding obligations with respect to the income recognized by me in connection with the vesting and settlement of such RSUs (based on minimum statutory withholding rates for all tax purposes, including payroll and social security taxes, that are applicable to such income), and the Company shall receive such net proceeds in satisfaction of such tax withholding obligation.

I hereby appoint the Chief Executive Officer, the Chief Financial Officer, the Head of Legal and the Controller, and any of them acting alone and with full power of substitution, to serve as my attorneys-in-fact to arrange for the sale of shares of the Company’s common stock in accordance with this Instruction. I agree to execute and deliver such documents, instruments and certificates as may reasonably be required in connection with the sale of the shares of common stock pursuant to this Instruction.

Unless the third and final box in the definition of Covered RSUs below is checked, if I have previously adopted an automatic sale or sell-to-cover instruction relating to Covered RSUs, this Instruction shall be void ab initio.

I hereby certify that, as of the Adoption Date:

(i) I am not prohibited from entering into this Instruction by the Company’s insider trading policy or otherwise;

(ii) I am not aware of any material nonpublic information about the Company or its common stock; and


(iii) I am adopting this Instruction in good faith and not as part of a plan or scheme to evade the prohibitions of Rule 10b-5 under the Exchange Act.

 

 

 

Print Name:

 

 

 

 

 

Date:

 

 

Covered RSUs:

The following restricted stock units (“RSUs”) are covered by this Instruction.

Check all applicable boxes:

☐ The first award of RSUs granted to me on or after ______________ [insert date of grant of current RSUs the grant of which is triggering the execution of this Instruction; if instruction is being executed in advance of a grant of RSUs, insert the Adoption Date] and any RSUs that may, from time to time following such date, be granted to me by the Company, other than any future granted RSUs which by the terms of the applicable award agreement require the Company to withhold shares for tax withholding obligations in connection with the vesting and settlement of such RSUs, and therefore do not permit sell-to-cover transactions.

☐ Any outstanding RSUs that were granted to me by the Company prior to the Adoption Date that (1) are not subject to any prior automatic sale or sell-to-cover instruction and (2) for which the next vesting date is after the Cooling-Off Period, other than any previously granted RSUs which by the terms of the applicable award agreement require the Company to withhold shares for tax withholding obligations in connection with the vesting and settlement of such RSUs, and therefore do not permit sell-to-cover transactions.

☐ With respect to any RSUs, whether or not granted to me by the Company prior to the Adoption Date, that already are subject to an automatic sale or sell-to-cover instruction (a “Prior Instruction”), I elect to have such sales effected pursuant to this Instruction and confirm that doing so does not modify or change the amount, price, or timing of such sales from those provided by the Prior Instruction (and, as a result the Cooling-Off Period is not applicable to sales pursuant to this Instruction that were previously subject to the Prior Instruction).


Exhibit 10.4

Certain identified information has been excluded from the exhibit by marking such portions with brackets (“[***]”) because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential.

 

 

 

 

 

 

 

 

 

 

 

 

COLLABORATION AND LICENSE AGREEMENT

by and among

SPERO THERAPEUTICS, INC.,

INNOVENT BIOLOGICS (SUZHOU) CO., LTD.,

and

FORTVITA BIOLOGICS (USA), INC.

dated as of July 8, 2026

 

 

 

 

 

 

 

 

 

 

 

 

 


 

TABLE OF CONTENTS

Article 1

 

DEFINITIONS

1

Article 2

 

GOVERNANCE

25

2.1

 

Alliance Managers

25

2.2

 

Committees

25

2.3

 

Scope of Governance

28

2.4

 

Joint Patent Committee

28

2.5

 

Discontinuation of Committees

29

2.6

 

Joint Global Study

29

Article 3

 

LICENSES; NON-COMPETITION, AND OPTION

29

3.1

 

License Grant to Licensee

29

3.2

 

License Grant to Innovent

31

3.3

 

Right to Sublicense

33

3.4

 

Retained Rights

34

3.5

 

No Implied Licenses; Negative Covenant

34

3.6

 

Non-Competition

34

3.7

 

Non-Compete: Effects of Change of Control

35

3.8

 

Non-Compete: Acquisition of a Third Party by a Party

36

3.9

 

Non-Compete: Distinguishable Competing Product; Option Rights

36

3.10

 

Future Upstream License Agreements

38

Article 4

 

REGULATORY AND TECHNOLOGY TRANSFER

39

4.1

 

Regulatory and Technology Transfer

39

4.2

 

Technical Support

39

Article 5

 

DEVELOPMENT

40

5.1

 

Responsibilities

40

5.2

 

Diligence

40

5.3

 

Development Plan

40

5.4

 

Development Reports

40

5.5

 

Records

41

5.6

 

Data Exchange and Use

41

Article 6

 

COMBINATION CLINICAL TRIALS

41

6.1

 

Innovent Combination Clinical Trial

41

6.2

 

Licensee Combination Clinical Trial

42

6.3

 

Combination Clinical Trial Data

42

Article 7

 

REGULATORY

42

7.1

 

Licensee Territory

42

7.2

 

Innovent Territory

43

7.3

 

Provision of Regulatory Submissions

43

7.4

 

Notice of Meetings and Regulatory Actions

43

7.5

 

Cooperation

43

7.6

 

No Harmful Actions

43

7.7

 

Notification of Threatened Action

43

7.8

 

Rights of Reference

44

7.9

 

Adverse Events Reporting

44

7.10

 

Remedial Actions

45

7.11

 

Safety and Regulatory Audits

45

i


 

Article 8

 

MANUFACTURING AND SUPPLY

46

8.1

 

Clinical and Commercial Supply

46

Article 9

 

COMMERCIALIZATION; MEDICAL AFFAIRS

48

9.1

 

Responsibilities

48

9.2

 

Commercialization Diligence

48

9.3

 

Commercialization Plan

48

9.4

 

Commercialization Reports

49

9.5

 

Records

49

9.6

 

Product Trademarks

49

9.7

 

No Diversion

50

9.8

 

Medical Affairs

50

Article 10

 

PAYMENTS

51

10.1

 

Upfront Payment

51

10.2

 

IND Milestone Payment

51

10.3

 

Development and Regulatory Milestones

51

10.4

 

Distinguishable Competing Product Milestones

53

10.5

 

Sales Milestones

54

10.6

 

Royalties

54

10.7

 

Payment

57

10.8

 

Audits

58

10.9

 

Interest

58

10.10

 

Taxes

59

10.11

 

Upstream Costs

60

Article 11

 

CONFIDENTIALITY; PUBLICATION

60

11.1

 

Confidential Information

60

11.2

 

Permitted Disclosures

61

11.3

 

Confidential Treatment

62

11.4

 

Use of Names

63

11.5

 

Publication of Licensed Product Information

63

11.6

 

Public Announcements

64

11.7

 

Prior Non-Disclosure Agreements

65

Article 12

 

REPRESENTATIONS, WARRANTIES, AND COVENANTS

65

12.1

 

Representations and Warranties of Each Party

65

12.2

 

Additional Representations and Warranties of Innovent

66

12.3

 

Additional Representations and Warranties of Licensee

68

12.4

 

Covenants

68

12.5

 

NO OTHER REPRESENTATIONS OR WARRANTIES

70

Article 13

 

INDEMNIFICATION

70

13.1

 

By Licensee

70

13.2

 

By Innovent

70

13.3

 

Procedure

70

13.4

 

Insurance

71

13.5

 

LIMITATION OF LIABILITY

71

Article 14

 

INTELLECTUAL PROPERTY

72

14.1

 

Ownership

72

14.2

 

Disclosure of Inventions

72

ii


 

14.3

 

Prosecution

73

14.4

 

Defense of Third Party Infringement Claims

74

14.5

 

Enforcement

75

14.6

 

Patent Listing

77

14.7

 

Patent Term Extension

77

14.8

 

CREATE Act

77

Article 15

 

TERM AND TERMINATION

78

15.1

 

Term and Expiration

78

15.2

 

Termination for Mutual Agreement

78

15.3

 

Termination for Convenience

78

15.4

 

Termination for Material Breach

78

15.5

 

Termination for Certain Licensee Actions

79

15.6

 

Licensee Alternative to Termination

80

15.7

 

Effects of Termination

80

15.8

 

Other Remedies

82

15.9

 

Survival

82

Article 16

 

DISPUTE RESOLUTION

82

16.1

 

General

82

16.2

 

Construction

82

16.3

 

Escalation

83

16.4

 

Arbitration

83

16.5

 

Certain Disputes

84

Article 17

 

MISCELLANEOUS

84

17.1

 

Governing Law

84

17.2

 

Force Majeure

85

17.3

 

Performance by Affiliates

85

17.4

 

Assignment

85

17.5

 

Severability

85

17.6

 

Notices

85

17.7

 

Entire Agreement; Amendments

87

17.8

 

Headings

87

17.9

 

Independent Contractors

87

17.10

 

Waiver

88

17.11

 

Waiver of Rule of Construction

88

17.12

 

Counterparts

88

17.13

 

Language

88

iii


 

EXHIBITS

 

Exhibit 1.86

Innovent Platform Patents

 

Exhibit 1.102

Licensed Patents

 

Exhibit 1.104

Existing Licensed Product Specific Patents

 

Exhibit 5.3

Licensee Development Plan

 

Exhibit 8.1(b)

Supply Agreement Material Terms

 

Exhibit 11.6

Initial Press Release

 

Exhibit 15.7(c)

Procedures Applicable to Disagreements With Respect to Reversion Terms or Reversion Sublicense Terms

 

 

iv


 

COLLABORATION AND LICENSE AGREEMENT

This Collaboration and License Agreement (this “Agreement”) is made as of July 8, 2026 (the “Effective Date”), by and among Spero Therapeutics, Inc., a corporation organized and existing under the laws of the State of Delaware (“Licensee”), with offices located at 675 Massachusetts Avenue, 14th Floor, Cambridge, Massachusetts 02139, United States, and Innovent Biologics (Suzhou) Co., Ltd., a company established in the People’s Republic of China (“Innovent Suzhou”), with offices located at 168 Dongping Street, Suzhou Industrial Park, Jiangsu 215123, China, and Fortvita Biologics (USA), Inc., a Delaware corporation with an office and place of business at 950 Page Mill Rd, Suite 204, Palo Alto, California 94304, United States (“Fortvita USA” and, collectively with Innovent Suzhou, “Innovent”). Innovent and Licensee may be referred to in this Agreement individually as a “Party” and together as the “Parties.”

RECITALS

A.
Innovent has discovered and developed certain proprietary monoclonal antibodies designed to bind to CD40L, including the molecule known internally as IBI355, and controls certain intellectual property rights relating thereto.
B.
Licensee wishes to obtain an exclusive license from Innovent to develop and commercialize Licensed Products outside of Greater China (as such terms are defined below).
C.
Innovent is willing to grant such a license to Licensee and to collaborate with Licensee on the development and commercialization of Licensed Products in the Licensee Territory (as such terms are defined below), all in accordance with and subject to the terms and conditions set forth below.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing premises and the mutual covenants contained herein, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree as follows:

ARTICLE 1

DEFINITIONS

The following initially capitalized terms, whether used in the singular or plural, have the respective meanings set forth below:

1.1 “Acquired Party” has the meaning set forth in Section 3.8.

1.2 “Acquisition Party” has the meaning set forth in Section 3.7.

1


 

1.3 “Adverse Event” means any unwanted or harmful medical occurrence in a patient or subject who is administered a Licensed Product, whether or not considered related to such Licensed Product, including any undesirable sign (including abnormal laboratory findings of clinical concern).

1.4 “Affiliate” means, with respect to a specified Person, any entity that directly or indirectly controls, is controlled by or is under common control with such Person for so long as such control exists. As used in this Section 1.4, “control” (and, with correlative meanings, the terms “controlled by” and “under common control with”) means, in the case of a corporation, the ownership of more than fifty percent (50%) of the outstanding voting securities thereof or, in the case of any other type of entity, an interest that results in the ability to direct or cause the direction of the management and policies of such entity or the power to appoint more than fifty percent (50%) of the members of the governing body of the entity or, where ownership of more than fifty percent (50%) of such securities or interest is prohibited by law, ownership of the maximum amount legally permitted.

1.5 “Agreement” has the meaning set forth in the preamble.

1.6 “Alliance Manager” has the meaning set forth in Section 2.1.

1.7 “Annual Net Sales” means, with respect to a given Licensed Product in a given Calendar Year, the aggregate Net Sales of such Licensed Product in such Calendar Year.

1.8 “Anti-Corruption Laws” has the meaning set forth in Section 12.4(d)(i).

1.9 “Applicable Accounting Standards” means, with respect to a Party, International Financial Reporting Standards (“IFRS”) or GAAP, in each case as generally and consistently applied throughout such Party’s or its Affiliate’s or Sublicensee’s organization. Each Party shall promptly notify the other Party in the event that it changes the Applicable Accounting Standards pursuant to which its records are maintained; provided that, each Party may only use internationally recognized accounting principles (e.g., IFRS, GAAP, etc.) as its Applicable Accounting Standards.

1.10 “Applicable Laws” means all statutes, ordinances, regulations, rules or orders of any kind whatsoever of any Governmental Authority that may be in effect from time to time and applicable to any of the relevant activities contemplated by this Agreement.

1.11 “Assist” means providing, directly or indirectly, a Third Party with (a) any analysis of any of the Licensed Patents or any portion thereof; (b) prior art or analysis of any prior art to any of the Licensed Patents; (c) any documents in Licensee’s possession, custody, or control relating to any of the Licensed Patents, in whole or in part, or to any prior art to any of the Licensed Patents; or (d) financial or technical support, in each case ((a)-(d)), with the intent of assisting a Patent Challenge of any of the Licensed Patents or any portion thereof.

1.12 “Audited Party” has the meaning set forth in Section 10.8(b).

2


 

1.13 “Biosimilar Product” means, with respect to a Licensed Product that has received Regulatory Approval in a country within the Licensee Territory and is being marketed and sold by Licensee or any of its Affiliates or Sublicensees in such country, any drug product for human use that: (a) is sold in such country by a Third Party who did not purchase or acquire such product or its active components or ingredients in a chain of distribution that included Licensee or any of its Affiliates or Sublicensees; and (b) has received Regulatory Approval in such country as a biosimilar, bioequivalent (or similar designation) of such Licensed Product by the applicable Regulatory Authority in such country, pursuant to an abbreviated approval process in accordance with the then-current rules and regulations in such country, in reliance on a prior Regulatory Approval of such Licensed Product or the data contained or incorporated by reference in a Regulatory Approval for such Licensed Product, where such Licensed Product is the “reference medicinal product,” “reference listed product” or similar designation in such country, including, for clarity, any product for which any Regulatory Approval is sought or obtained pursuant to 42 U.S.C. §262(k) as a biosimilar to such Licensed Product, or any other similar law of any jurisdiction, by reference to a prior Regulatory Approval granted with respect to such Licensed Product; or that is “biosimilar” to such Licensed Product, as the term “biosimilar” is defined in 42 U.S.C. §262(i)(2) or any other similar law of any jurisdiction.

1.14 “Breach Notice” has the meaning set forth in Section 15.4(a).

1.15 “Business Day” means a day other than Saturday, Sunday, or any day on which banks located in New York, U.S., are authorized or obligated to close, or any day that is a government mandated holiday in China. Whenever this Agreement refers to a number of days, such number will refer to calendar days unless Business Days are specified.

1.16 “Calendar Quarter” means the respective periods of three (3) consecutive calendar months ending on March 31st, June 30th, September 30th and December 31st; provided that the first Calendar Quarter of the Term will extend from the Effective Date until the end of the then-current Calendar Quarter, and the last Calendar Quarter of the Term will end on the effective date of termination or expiration of this Agreement.

1.17 “Calendar Year” means each twelve (12) month period commencing on January 1st and ending on December 31st; provided that the first Calendar Year of the Term will extend from the Effective Date to December 31st of the then-current Calendar Year, and the last Calendar Year of the Term will end on the effective date of the termination or expiration of this Agreement.

1.18 “Cell Culture Media” means the Innovent proprietary cell culture media used by or on behalf of Innovent or any of its Affiliates for the Manufacture of Licensed Compounds and/or Licensed Products.

1.19 “cGMP” means all applicable current Good Manufacturing Practices including, as applicable, (a) the principles detailed in the U.S. Current Good Manufacturing Practices, 21 C.F.R. Parts 4, 210, 211, 601, 610 and 820, (b) European Directive 2003/94/EC and Eudralex 4, (c) the principles detailed in the ICH Q7 guidelines, and (d) the equivalent Applicable Laws in any relevant country or region, each as may be amended and applicable from time to time.

3


 

1.20 “Change of Control” means, with respect to a Party, the occurrence of any of the following events: (a) any Third Party acquires, directly or indirectly, the beneficial ownership of any voting security of such Party, or if the percentage ownership of any Third Party in the voting securities of such Party is increased through stock redemption, cancellation, or other recapitalization, and immediately after such acquisition or increase such Third Party is, directly or indirectly, the beneficial owner of voting securities representing more than fifty percent (50%) of the total voting power of all of the then outstanding voting securities of such Party; (b) a merger, consolidation, recapitalization, or reorganization of such Party is consummated which results in shareholders or equity holders of such Party immediately prior to such transaction no longer owning at least fifty percent (50%) of the outstanding voting securities of the surviving entity (or its parent entity) immediately following such transaction; or (c) there is a sale or transfer to a Third Party of all or substantially all of such Party’s consolidated assets that relate to the subject matter of this Agreement, through one or more related transactions. Notwithstanding the foregoing, (i) any investment transaction by venture capital, private equity or other financial investors, including through a private placement, the purpose of which is to raise capital for a Party; (ii) any reorganization, merger or consolidation of a Party in which the holders of the voting securities of such Party immediately prior to such transaction or series of related transactions retain, immediately after such transaction or series of related transactions, at least a majority of the total voting power represented by the outstanding voting securities of such Party or such other surviving or resulting entity; and (iii) any underwritten public offering of equity securities by a Party pursuant to an effective registration statement under the applicable securities laws of any country or jurisdiction shall not, in any case, constitute a Change of Control for purposes of this Agreement.

1.21 “Claims” has the meaning set forth in Section 13.1.

1.22 “Clinical Trial” means any clinical trial of a product in human subjects (a) as defined in 21 C.F.R. §312.21, as amended from time to time, or (b) as prescribed by the Regulatory Authorities in any jurisdiction outside the U.S.

1.23 “CMO” means any Third Party contract manufacturing organization.

1.24 “Combination Product” means any Licensed Product that comprises a Licensed Compound with one or more other clinically or pharmacologically active compounds or ingredients or delivery devices other than a Licensed Compound in a single formulation or final package presentation for sale as a single unit (including separate unit doses so configured). The Licensed Compound portion of any Combination Product shall be deemed the “Licensed Component” and the other clinically or pharmacologically active compounds or ingredients or delivery devices of such Combination Product shall be deemed the “Other Components.”

1.25 “CommercializationorCommercialize” means all activities directed to marketing, distribution, promoting or selling of pharmaceutical products (including importing and exporting activities in connection therewith), but excluding activities directed to Manufacturing or Development. “Commercializing” and “Commercialized” have the correlative meanings.

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1.26 “Commercially Reasonable Efforts” means, with respect to the efforts to be expended by a Party with respect to any objective, [***].

1.27 “Committee(s)” means the JSC or any subcommittee established by the JSC, as applicable.

1.28 “Competing Product” means any monoclonal antibody, bispecific antibody or multispecific antibody Targeting CD40L, excluding any Licensed Compound, any Licensed Product, and any Terminated Product.

1.29 “Confidential Information” has the meaning set forth in Section 11.1.

1.30 “Confidentiality Agreement” means the Mutual Non-Disclosure Agreement between the Parties dated [***].

1.31 “ControlorControlled” means, with respect to any Know-How, Patents or other subject matter, that a Party or any of its Affiliates has the legal authority or right (whether by ownership, license or otherwise, without taking into account any license granted by one Party to the other Party pursuant to this Agreement) to grant a license, sublicense, access or right to use (as applicable) under such Know-How, Patents or other subject matter, on the terms and conditions set forth herein, in each case, without breaching the terms of any agreement with a Third Party. Notwithstanding the foregoing, (a) in the event of a Change of Control of a Party, any Know-How, Patents and other subject matter Controlled by the Acquisition Party immediately prior to such Change of Control transaction will not be Licensed Technology, Licensee Product IP, or Grant-Back Technology except, in each case, to the extent any such Know-How, Patents or other subject matter (i) is also Controlled by such Party or any of its Affiliates existing immediately prior to such Change of Control transaction, or (ii) is generated or used by such Party or any of its Affiliates in the Exploitation of any Licensed Compound or Licensed Product after such Change of Control transaction; and (b) Innovent and its Affiliates shall not be deemed to Control any Know-How, Patents or other subject matter licensed to Innovent or any of its Affiliates after the Effective Date unless Licensee elects to receive a sublicense thereunder in accordance with Section 3.10.

1.32 “Cover,” “CoveredorCovering” means with respect to any Patent and any Licensed Product or Licensed Compound, that, in the absence of the ownership of or a license to such Patent, the Development, Manufacture, use, Commercialization or other Exploitation of such Licensed Product or Licensed Compound would fall within the scope of one or more claims of such Patent (including, with respect to a pending claim of a Patent, as if such pending claim were to issue without modification).

1.33 “Cure Period” has the meaning set forth in Section 15.4(a).

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1.34 “Data” means (a) any and all results of research, preclinical studies, including in vitro and in vivo studies, Clinical Trials and other testing of any composition of matter, product candidate or product, and (b) any and all other data related to the development, manufacture or commercialization of any composition of matter, product candidate or product, including any biological, chemical, pharmacological, toxicological, pharmacokinetic, preclinical, clinical, CMC, analytical, quality control, mechanical, software and electronic data, results and descriptions.

1.35 “Development” or “Develop” means any research and preclinical and clinical drug or biological development activities, including test method development, toxicology, formulation, quality assurance/quality control development, statistical analysis, preclinical studies and Clinical Trials and regulatory affairs, and regulatory activities, including filing for, obtaining and maintaining Regulatory Approval, but excluding activities directed to Manufacturing or Commercialization. “Developing” has the correlative meaning.

1.36 “Development and Regulatory Milestone Event” has the meaning set forth in Section 10.3(a).

1.37 “Development and Regulatory Milestone Payment” has the meaning set forth in Section 10.3(a).

1.38 “Disclosing Party” has the meaning set forth in Section 11.1.

1.39 “Dispute” has the meaning set forth in Section 16.1.

1.40 “Dispute Referral” has the meaning set forth in Section16.3.

1.41 “Distinguishable Competing Product” has the meaning set forth in Section 3.9.

1.42 “Divestiture” means, with respect to a Competing Product: (a) the divestiture of such Competing Product through: (i) an outright sale or assignment of all material rights in such Competing Product to a Third Party; (ii) an exclusive out-license to a Third Party of all development, manufacture, and commercialization rights with respect to such Competing Product, with no further role, influence, or authority of the applicable Party, directly or indirectly, with respect to such Competing Product; or (iii) a combination of the transactions contemplated by the foregoing clauses (i) and (ii); or (b) the cessation of all Development, Manufacture and Commercialization activities with respect to such Competing Product (subject, if applicable, to applicable wind-down activities and applicable requirements of Applicable Law). For clarity, subject to the preceding sentence, the right of the applicable Party to receive royalties, milestones, or other payments in connection with an acquirer’s, assignee’s, or licensee’s Development, Manufacture, or Commercialization of a Competing Product pursuant to subsection (a) above shall not be deemed to disqualify the applicable sale, assignment, or license from constituting a Divestiture. When used as a verb, “Divest” and “Divested” mean to cause or have caused a Divestiture.

1.43 “Dollars” and “$” mean United States dollars.

1.44 “Effective Date” has the meaning set forth in the preamble.

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1.45 “EMA” means the European Medicines Agency, or any successor agency thereto.

1.46 “Excluded Formulation Know-How” means any Know-How that (a) consists of a specific Licensed Product formulation or its Manufacture and that is at a concentration of [***] or greater of active pharmaceutical ingredient; or (b) is designed, developed or intended by or on behalf of a Party or its Affiliates for subcutaneous administration (whether delivered by [***]); provided that Excluded Formulation Know-How does not include Know-How that has broader applicability beyond a specific Licensed Product. For clarity, Excluded Formulation Know-How may include specific composition and relative proportions of ingredients in, and specific process conditions used to Manufacture, any such formulation, but does not include more general Know-How that is not specific to such formulation.

1.47 “Existing Upstream License Agreement” means that certain [***].

1.48 “Exploit” means Develop, Manufacture, have Manufactured, use, practice, sell, offer for sale, import, export, Commercialize or otherwise exploit. “Exploitation” has the correlative meaning.

1.49 “Export Controls” has the meaning set forth in Section 12.4(e)(i).

1.50 “FDA” means the United States Food & Drug Administration, or any successor agency thereto.

1.51 “Field” means all human and animal uses.

1.52 “First Commercial Sale” means, on a Licensed Product-by-Licensed Product and country-by-country basis within the Licensee Territory, the first arm’s length sale of a Licensed Product to a Third Party in a country by Licensee or its Affiliate or Sublicensee for use or consumption in such country following receipt of Regulatory Approval of such Licensed Product in such country; provided that in no event will any sale of a Licensed Product in a country (a) at or below cost in connection with the Development of a Licensed Product (including the conduct of Clinical Trials), or (b) at or below cost for charitable purposes or patient access (including in connection with “treatment IND sales,” “named patient sales” and “compassionate use sales”), be considered a “First Commercial Sale.”

1.53 “FTE” means full-time equivalent employee of Innovent based on a total of [***] hours of scientific, technical or managerial activities under this Agreement per Calendar Year. Overtime and work on weekends, holidays, and the like, in each case, will not be counted with any multiplier (e.g., time-and-a-half or double time) toward the number of hours that are used to calculate the FTE contribution. The portion of an FTE billable by Innovent for one individual during a given accounting period will be determined by dividing the number of hours worked directly by such individual on the work to be conducted under this Agreement during such accounting period and the number of FTE hours applicable for such accounting period based on [***] working hours per Calendar Year.

1.54 “FTE Costs” means, with respect to Innovent and an activity for any period, the FTE Rate multiplied by the applicable number of FTEs performing such activity during such period.

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1.55 “FTE Rate” means [***] dollars ($[***]) per FTE per Calendar Year.

1.56 “GAAP” means U.S. Generally Accepted Accounting Principles, consistently applied.

1.57 “GCP” means all applicable Good Clinical Practice standards for the design, conduct, performance, monitoring, auditing, recording, analyses and reporting of Clinical Trials, including, as applicable (a) as set forth in the International Council on Harmonization of Technical Requirements for Registration of Pharmaceuticals for Human Use Guideline for Good Clinical Practice (CPMP/ICH/135/95) and any other guidelines for good clinical practice for trials on medicinal products in the Licensee Territory or the Innovent Territory, (b) the Declaration of Helsinki (2004) as last amended at the 52nd World Medical Association in October 2000 and any further amendments or clarifications thereto, (c) U.S. Code of Federal Regulations Title 21, Parts 50 (Protection of Human Subjects), 56 (Institutional Review Boards) and 312 (Investigational New Drug Application), as may be amended from time to time, and (d) the equivalent guidelines or Applicable Laws in any other region in the Licensee Territory or the Innovent Territory, each as may be amended and applicable from time to time and in each case, that provide for, among other things, assurance that the clinical Data and reported results are credible and accurate and protect the rights, integrity, and confidentiality of trial subjects.

1.58 “GLP” means all applicable Good Laboratory Practice standards, including, as applicable, as set forth in the then-current good laboratory practice standards promulgated or endorsed by the FDA as defined in 21 C.F.R. Part 58, or the equivalent guidelines or Applicable Laws in any other region in the Licensee Territory or the Innovent Territory, each as may be amended and applicable from time to time.

1.59 “GLP Tox Study(ies)” means any nonclinical safety and toxicology studies, including IND-enabling studies, conducted in compliance with GLP requirements and designed to support Regulatory Submissions, to be filed with FDA, such as repeat‑dose toxicity, safety pharmacology, genotoxicity, reproductive or developmental toxicity studies.

1.60 “Governmental Authority” means any court, commission, authority, department, ministry, official or other instrumentality of, or being vested with public authority under any law of, any country, region, state or local authority or any political subdivision thereof, or any association of countries.

1.61 “Grant-Back Technology” means, with respect to any Terminated Product, (a) all Know-How Controlled by Licensee or any of its Affiliates that is necessary for the Exploitation of such Terminated Product as of the effective date of termination and at any time during the [***] period prior to the applicable effective date of termination and (b) all Patents that are Controlled by Licensee or any of its Affiliates that Cover such Know-How and/or the Terminated Product as of the effective date of termination and at any time during the [***] period prior to the applicable effective date of termination.

1.62 “Greater China” means the mainland of the People’s Republic of China, Taiwan, Hong Kong and Macau.

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1.63 “GSP” means all applicable Good Supply Practice standards, including, as applicable, as set forth in the then-current good supply practice standards promulgated or endorsed by the FDA as defined in Good Supply Practice for Pharmaceutical Products or the equivalent Applicable Laws in any other region in the Licensee Territory or the Innovent Territory, each as may be amended and applicable from time to time.

1.64 “ICC Rules” has the meaning set forth in Section 16.4(a).

1.65 “ICH” means The International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use.

1.66 “Included FTEs” means an aggregate of [***] hours of services that Licensee requests Innovent to provide to Licensee in accordance with the applicable provisions of this Agreement, which Innovent shall provide in accordance with the applicable provisions of this Agreement without charge to or reimbursement by Licensee.

1.67 “IND” means an investigational new drug application or equivalent application filed with the applicable Regulatory Authority, which application is required to commence or conduct Clinical Trials in the applicable jurisdiction.

1.68 “Indemnitee” has the meaning set forth in Section 13.3.

1.69 “Indemnitor” has the meaning set forth in Section 13.3.

1.70 “Indication” means a specific disease, disorder or condition which is recognized by the applicable Regulatory Authority in a given country or jurisdiction as a discrete disease, disorder or condition in the labeling of a Licensed Product. For clarity, (a) different genetic subtypes, organs of origin, or histologies of a disease, disorder or condition shall not constitute distinct Indications, and (b) treatment of different populations of patients having a disease, disorder or condition (e.g., front-line treatment, treatment of second-line therapy, relapsed refractory treatment and maintenance treatment) shall not constitute distinct Indications. Notwithstanding the foregoing, if the filing of an MAA for a new Indication (i.e., an Indication that is not excluded as a distinct Indication by the foregoing sentence and for which an MAA has not previously been filed) requires the completion of a separate pivotal trial for such Indication, then such Indication shall be deemed to be a distinct Indication for purposes of this Agreement.

1.71 “Indirect Tax” has the meaning set forth in Section 10.10(c).

1.72 “Infringement” has the meaning set forth in Section 14.5(a).

1.73 “Initiation” or “Initiate” means, with respect to a product and a Clinical Trial, dosing of the first patient in such Clinical Trial with such product.

1.74 “Innovent” has the meaning set forth in the preamble.

1.75 “Innovent Combination Clinical Trial” has the meaning set forth in Section 6.1(a).

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1.76 “Innovent Combination Blocking Claim” has the meaning set forth in Section 3.1(e).

1.77 “Innovent Combination Patent” means any Patent Controlled by Innovent or any of its Affiliates that (a) claims or Covers the use of a Licensed Compound or Licensed Product with one or more compounds or products that are not Licensed Compounds or Licensed Products, including an Innovent Product, as a combination therapy, including any method of use, dosing, administration, treatment regimen, or patient population claim specific to such combination therapy, or (b) claims or Covers any data, results, or Know-How generated by or on behalf of Innovent or its Affiliates in the conduct of an Innovent Combination Clinical Trial, in each case ((a) and (b)), solely to the extent such Patent claim is specifically directed to a combination therapy comprising a Licensed Compound or Licensed Product and one or more other compounds or products, including Innovent Products, and not to the Licensed Compound or Licensed Product alone. For clarity, Innovent Combination Patents exclude any Patent, or claim thereof, that specifically Covers the composition of matter, formulation, method of manufacture, or use of a Licensed Compound or Licensed Product other than in a combination therapy with one or more other compounds or products, including an Innovent Product.

1.78 “Innovent Combination Therapy” has the meaning set forth in Section 6.1(a).

1.79 “Innovent Controlled Patents” has the meaning set forth in Section 14.3(d).

1.80 “Innovent Formulation Blocking Claim” has the meaning set forth in Section 3.1(d).

1.81 “Innovent Formulation Patent” has the meaning set forth in Section 3.1(b).

1.82 “Innovent Indemnitee(s)” has the meaning set forth in Section 13.1.

1.83 “Innovent Manufacturing Technology” means the Licensed Know-How consisting of the cell line and related Know-How licensed by [***] to Innovent Suzhou pursuant to the Existing Upstream License Agreement that is used by or on behalf of Innovent or any of its Affiliates for the Manufacture of Licensed Products and Licensed Compounds.

1.84 “Innovent Platform” means Innovent’s platform-based proprietary technology used by Innovent or its Affiliates to discover, generate, develop or manufacture compounds, including Licensed Compound(s).

1.85 “Innovent Platform Know-How” means Licensed Know-How that specifically relates to the Innovent Platform.

1.86 “Innovent Platform Patents” means the Licensed Patents listed in Exhibit 1.86 that Cover the Innovent Platform and/or claim or disclose Innovent Platform Know-How.

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1.87 “Innovent Platform Technology” means (a) Innovent Platform Patents and (b) Innovent Platform Know-How.

1.88 “Innovent Product” means any pharmaceutical product that is proprietary to, and is owned or otherwise Controlled by, Innovent or any of its Affiliates that is not a Licensed Compound or Licensed Product.

1.89 “Innovent Product Marks” has the meaning set forth in Section 9.6(b).

1.90 “Innovent Territory” means Greater China.

1.91 “Invention” means any process, method, composition of matter, article of manufacture, discovery or finding, or other Know-How, patentable or otherwise, that is invented, discovered or generated (a) solely by or on behalf of either Party, its Affiliates, Sublicensees (or (sub)licensees, with respect to Innovent), agents or independent contractors or (b) jointly by or on behalf of both Parties, their Affiliates, Sublicensees (or (sub)licensees, with respect to Innovent), agents or independent contractors, in each case, during the Term in the performance of any activity contemplated by this Agreement or otherwise in the exercise of its (or their) rights or carrying out its (or their) obligations under this Agreement.

1.92 “IRA Subject Product” means any Licensed Product that is designated as a “selected drug” by the Secretary of the U.S. Department of Health and Human Services for drug price negotiation under the Inflation Reduction Act (Public Law No. 117-169) of 2022 in the United States.

1.93 “Joint Inventions” has the meaning set forth in Section 14.1(b).

1.94 “Joint Patents” has the meaning set forth in Section 14.1(b).

1.95 “Joint Steering CommitteeorJSC” has the meaning set forth in Section 2.2(a).

1.96 “Justified Delay” means any delay that is attributable to (a) any toxicity or drug safety issue or Serious Adverse Event that is reasonably related to or observed in connection with, as applicable, any Development or Commercialization activities conducted with respect to a Licensed Product; (b) Licensee’s reasonable response to any guidance or inquiries that are received from, or any action or inaction by, any Regulatory Authority in a Major Market (such as a clinical hold, a recall, or withdrawal) with respect to a Licensed Product; (c) Innovent’s delay in delivering to Licensee any chronic toxicology data or other data in Innovent’s possession and Control that are compliant with FDA requirements and are required for purposes of Licensee’s IND filing in the United States; (d) any need for Licensee to regenerate any data provided by Innovent to Licensee hereunder in order to file Licensee’s first IND for a Licensed Product in the United States to the extent such need arises from guidance received by Licensee from the FDA or is to comply with any Applicable Laws in the United States; (e) any force majeure event that affects a Licensed Product as described in Section 17.2; or (f) any legal injunction issued by a court of competent jurisdiction or by operation of Applicable Laws in any Major Market that affects a Licensed Product.

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1.97 “Know-How” means any scientific or technical information, results, data, and materials of any type whatsoever, in any tangible or intangible form whatsoever, including Data, databases, safety information, practices, methods, techniques, technology, specifications, formulations, formulae, chemical or biological materials, knowledge, know-how, skill, experience, trade secrets, test data including pharmacological, medicinal chemistry, biological, chemical, biochemical, toxicological and clinical test data, analytical and quality control data, stability data, studies and procedures, and manufacturing process and development information, results and data.

1.98 “Knowledge” means, with respect to any representation given by Innovent in this Agreement, the actual knowledge of the executive officers of Innovent and Innovent’s management personnel (including its applicable program managers and legal personnel), in each case, having substantial responsibilities for Innovent’s Development and Manufacture of Licensed Products and legal matters relating thereto, after reasonable inquiry of such Person’s direct reports and outside counsel where such direct reports and outside counsel would reasonably be expected to have substantial additional knowledge relevant to the applicable subject matter, without any obligation to conduct any freedom-to-operate analysis, patent search, patent clearance review, legal investigation, or other independent investigation, or review of archived records to establish Knowledge.

1.99 “Licensed Component” has the meaning set forth in Section 1.24.

1.100 “Licensed Compound” means (a) the molecule known internally by Innovent as IBI355, (b) any backup molecules of IBI355 made by or on behalf of Innovent or any of its Affiliates as of the Effective Date or during the Term that are monoclonal antibodies Targeting CD40L (“Backups”), and (c) any Derivatives of IBI355 or any Backup, in each case of (a) - (c), in the monoclonal antibody modality. For purposes of this definition, “Derivative” means any antibody that (i) is discovered, optimized or modified from or otherwise based on IBI355 or any Backup, (ii) is made by or on behalf of Licensee or its Affiliates or Sublicensees, and (iii) incorporates the antigen-binding sequence of IBI355 or the antigen-binding sequence of a Backup.

1.101 “Licensed Know-How” means any and all Know-How Controlled by Innovent or its Affiliates as of the Effective Date or during the Term, including Innovent’s or its Affiliate’s joint ownership interest in any Know-How within the Joint Inventions, that is necessary or reasonably useful for the Exploitation of any Licensed Compound or Licensed Product in the Field in the Licensee Territory; provided that, (a) subject to Section 3.1, any Excluded Formulation Know-How; and (b) any Know-How generated by or on behalf of Innovent or its Affiliates in the conduct of any Innovent Combination Clinical Trial other than any such Know-How that is safety data (“Innovent Combination Clinical Trial Know-How”), shall each be excluded from the Licensed Know-How (all such Know-How described in clauses (a) and (b), “Excluded Innovent Know-How”).

1.102 “Licensed Patents” means any and all Patents that (a) are Controlled by Innovent or its Affiliates as of the Effective Date or during the Term, including Innovent’s or its Affiliate’s interest in any Joint Patents, and (b) that claim the composition of matter, formulation, method of use or method of manufacture of Licensed Compounds or Licensed Products in the Field in the Licensee Territory, including for clarity, all Licensed Product Specific Patents and Innovent Platform Patents. Without limiting the foregoing, Exhibit 1.102 sets forth a list of all Licensed

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Patents existing as of the Effective Date. For clarity, Licensed Patents exclude Innovent Formulation Patents (subject to Section 3.1) and Innovent Combination Patents.

1.103 “Licensed Product” means any product that comprises or incorporates any Licensed Compound in any form, formulation and delivery mode, including any Combination Product; provided that a Licensed Product may not contain any compound that is proprietary to Innovent but that is not a Licensed Compound.

1.104 “Licensed Product Specific Patents” means any Licensed Patent, other than any Innovent Platform Patent listed in Exhibit 1.86, that includes at least one independent claim that specifically Covers the Licensed Compound or a Licensed Product as a distinct monoclonal antibody that Targets CD40L, including (a) the Licensed Patent existing as of the Effective Date and listed on Exhibit 1.104 (the “Existing Licensed Product Specific Patents”), (b) any patent application claiming priority from such Licensed Patent, including divisions, continuations, continuations-in-part, additions, (c) any patent that issues from such Licensed Patent, including any patent applications claiming priority thereto, and any utility or design patent or certificate of invention, and (d) any re-issues, renewals, extensions, substitutions, re-examinations or restorations, registrations and revalidations, and supplementary protection certificates and equivalents to any of the foregoing (a) through (c).

1.105 “Licensed Technology” means all (a) Licensed Patents and (b) Licensed Know-How.

1.106 “Licensee” has the meaning set forth in the preamble.

1.107 “Licensee Combination Clinical Trial” has the meaning set forth in Section 6.2(a).

1.108 Licensee Combination Blocking Claim” has the meaning set forth in Section 3.2(z).

1.109 “Licensee Combination Patent” means any Patent Controlled by Licensee or any of its Affiliates that (a) claims or Covers the use of a Licensed Compound or Licensed Product with one or more compounds or products that are not Licensed Compounds or Licensed Products, including any compound or product that is proprietary to Licensee, including any method of use, dosing, administration, treatment regimen, or patient population claim specific to such combination therapy, or (b) claims or Covers any data, results, or Know-How generated by or on behalf of Licensee or its Affiliates in the conduct of a Licensee Combination Clinical Trial, in each case ((a) and (b)), solely to the extent such Patent claim is specifically directed to a combination therapy comprising a Licensed Compound or Licensed Product and one or more other compounds or products, including any compounds or products that are proprietary to Licensee and not to the Licensed Compound or Licensed Product alone. For clarity, Licensee Combination Patents exclude any Patent, or claim thereof, that specifically Covers the composition of matter, formulation, method of manufacture, or use of a Licensed Compound or Licensed Product other

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than in a combination therapy with one or more other compounds or products, including any compound or product that is proprietary to Licensee.

1.110 “Licensee Combination Therapy” has the meaning set forth in Section 6.2(a).

1.111 “Licensee Controlled Patents” has the meaning set forth in Section 14.3(b).

1.112 “Licensee Formulation Patent” has the meaning set forth in Section 3.2(b).

1.113 “Licensee Formulation Blocking Claim” has the meaning set forth in Section 3.2(y).

1.114 “Licensee Indemnitee(s)” has the meaning set forth in Section 13.2.

1.115 “Licensee Product IP” means all Know-How and Patents Controlled by Licensee or its Affiliates as of the Effective Date or during the Term that are necessary or reasonably useful to Exploit any Licensed Compound or Licensed Product, including any Patents claiming or Covering any Sole Inventions Controlled by Licensee and any Know-How within Sole Inventions Controlled by Licensee; provided that, (a) subject to Section 3.2, any Excluded Formulation Know-How and (b) any Know-How generated by or on behalf of Licensee or its Affiliates in the conduct of any Licensee Combination Clinical Trial other than any such Know-How that is safety data (“Licensee Combination Clinical Trial Know-How”), shall each be excluded from the Licensee Product IP (such Know-How, “Excluded Licensee Know-How”).

1.116 “Licensee Product Marks” has the meaning set forth in Section 9.6(a).

1.117 “Licensee Territory” means worldwide, excluding the Innovent Territory.

1.118 “Losses” has the meaning set forth in Section 13.1.

1.119 “MAA” means (a) a Biologics License Application (as more fully defined in 21 C.F.R. §601.2, as may be amended) or (b) the equivalent application(s) filed with any Regulatory Authority in any jurisdiction outside the U.S. for approval to market and sell a new drug in such jurisdiction, excluding any application for pricing or reimbursement approvals; but, in each case, including all amendments and supplements to any of the foregoing.

1.120 “Major EU Country” means each of France, Germany, Italy, Spain and the United Kingdom.

1.121 “Major Markets” means the United States, each of the Major EU Countries and Japan.

1.122 “ManufactureorManufacturingorManufactured” means, with respect to a product (or any components or process steps involving any such product), all operations involved in the manufacturing, filling and finishing, quality control testing (including in-process, release and stability testing, if applicable), storage, releasing, packaging, labeling, and supply of such product.

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1.123 “Manufacturing Support” has the meaning set forth in Section 8.1(c).

1.124 “Manufacturing Technology Transfer” has the meaning set forth in Section 8.1(c).

1.125 “Manufacturing Technology Transfer Plan” has the meaning set forth in Section 8.1(c).

1.126 “Material Development Activity” means, with respect to a Licensed Compound or Licensed Product, any material clinical and non-clinical research, Development, Manufacturing and regulatory activities conducted in relation to such Licensed Compound or Licensed Product, including toxicology and pharmacology studies, development of test methods and stability protocols, process development, formulation and delivery system development, quality assurance and quality control, statistical analysis, Clinical Trials, regulatory affairs (including Clinical Trial-related regulatory activities), pharmacovigilance, any activities that are conducted to obtain and maintain any MAA, and any activities carried out in preparation for any of the foregoing.

1.127 “Milestone Payments” means Development and Regulatory Milestone Payments and/or Sales Milestone Payments, as applicable.

1.128 “Net Sales” means, with respect to any Licensed Product, the gross price billed or invoiced on sales of such Licensed Product by Licensee or its Affiliates or Sublicensees (each, a “Selling Party”) to an end user or any Third Party that is not a Sublicensee, less the following deductions, to the extent actually incurred, allowed, paid, accrued or specifically allocated to such gross sales amounts of such Licensed Product:

(a)
normal and customary cash, trade, prompt payment or quantity discounts, allowances and credits, cash and non-cash coupons and mandated discounts actually granted to trade customers, managed health care organizations, pharmaceutical benefit managers, group purchasing organizations, and national, state or local governments;
(b)
compulsory payments and cash rebates imposed on sales of the Licensed Product and paid to a Governmental Authority or its agent pursuant to Applicable Law by reason of any national or local health insurance program or similar program, and rebates, refunds, chargebacks and discounts actually granted to managed health care organizations, pharmacy benefit managers, Governmental Authorities or their agencies, purchasers or reimbursers, or trade customers, in each case solely to the extent such amounts are specifically and solely allocated to sales of the Licensed Product, and are actually incurred, paid, accrued or taken;
(c)
normal and customary inventory management fees, and other bona fide service fees paid to distributors and wholesalers, in each case, actually allowed or paid for distribution and delivery of such Licensed Product, to the extent billed on the gross sales invoice or recognized;

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(d)
credits or allowances for defective or damaged Licensed Product (including allowances for spoiled, outdated or withdrawn Licensed Product), or for returns or rejections of Licensed Product, including in connection with recalls and retroactive price reductions;
(e)
amounts written off by reason of uncollectible debt; provided, however, that (i) the amount of such uncollectible receivables shall not be in excess of [***] percent ([***]%) of Net Sales with respect to any given Calendar Quarter and (ii) if the debt is thereafter paid, the corresponding amount shall be added to the Net Sales of the period during which it is paid;
(f)
insurance, customs charges, freight, postage, shipping, handling, and other transportation costs incurred by a Selling Party in shipping any Licensed Product to a Third Party;
(g)
import taxes, export taxes and excise taxes to the extent included in the gross amount invoiced and annual fees due under Section 9008 of the United States Patient Protection and Affordable Care Act of 2010 (Pub. L. No. 111-48) and other comparable Applicable Laws allocated to sales of the Licensed Product in accordance with Applicable Accounting Standards, sales tax, value-added taxes, consumption taxes, duties, or other taxes levied on, absorbed, determined, or imposed with respect to such sales (excluding income or net profit taxes or franchise taxes of any kind) to the extent the Selling Party is not otherwise entitled to a credit or refund for such taxes, duties, or payments made;
(h)
any other items actually deducted from gross invoiced sales amounts as reported by the Selling Party in its financial statements in accordance with its Applicable Accounting Standards, applied on a consistent basis, but which may not be duplicative of the deductions specified above.

To the extent that a Selling Party receives consideration other than or in addition to cash upon the sale or disposition of a Licensed Product, Net Sales will be calculated based on the average price charged for such Licensed Product, as applicable, during the preceding royalty period, or in the absence of such sales, based on such Selling Party’s reasonable determination in good faith of the fair market value of the Licensed Product.

Each of the amounts set forth above will be determined from the books and records of Licensee or its Affiliate or Sublicensee, maintained in accordance with GAAP or, in the case of Sublicensees, such similar accounting principles, consistently applied, and any amounts that are deducted from Net Sales pursuant to one subsection may not be deducted pursuant to another subsection (i.e., a deduction may only be taken once).

Net Sales will exclude any transfer or sale of a Licensed Product (i) at or below cost in connection with the Development or testing of a Licensed Product (including the conduct of Clinical Trials), or (ii) at or below cost for charitable purposes or patient access (including in connection with so-called “treatment IND sales,” “named patient sales” and “compassionate use sales”). Subject to the foregoing, amounts received or invoiced by Licensee or its Affiliates or Sublicensees for the transfer or sale of a Licensed Product by and between Licensee or any of its Affiliates or Sublicensees for resale will not be included in the computation of Net Sales so long as such

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Licensed Product is subsequently resold to a non-Sublicensee Third Party and such subsequent sale is included in the computation of Net Sales under this Agreement.

All discounts, allowances, credits, rebates and other deductions, to the extent allocable across multiple products including a Licensed Product, shall be fairly allocated between such Licensed Product and other products of Licensee or its Affiliates or Sublicensees so that such Licensed Product does not bear a disproportionate portion of such deductions. In no circumstances will Licensee or its Affiliates or Sublicensees sell Licensed Product as a “loss leader”.

Net Sales for a Combination Product in a country shall be calculated as follows:

(i) If both the Licensed Component and the Other Components are sold independently in such country in the same formulation and dosage, then Net Sales will be calculated by multiplying the total Net Sales (as described above) of the Combination Product by the fraction A/(A+B), where A is the average gross selling price in such country of the Licensed Component sold separately in the same formulation and dosage, and B is the (sum of the) average gross selling price(s) in such country of the Other Component(s) sold separately in the same formulation and dosage or device form, during the applicable Calendar Year.

(ii) If the Licensed Component is sold independently of the Other Component(s) in such country in the same formulation and dosage, but the average gross selling price of the Other Component(s) cannot be determined, then Net Sales will be calculated by multiplying the total Net Sales (as described above) of such Combination Product by the fraction A/C, where A is the average gross selling price in such country of such Licensed Component sold independently in the same formulation and dosage and C is the average gross selling price in such country of the Combination Product.

(iii) If the Other Component(s) are sold independently of the Licensed Component in such country in the same formulation and dosage or device form, but the average gross selling price of such Licensed Component cannot be determined, then Net Sales will be calculated by multiplying the total Net Sales (as described above) of such Combination Product by the fraction [1-B/C], where B is the (sum of the) average gross selling price(s) in such country of the Other Component(s) in the same formulation and dosage or device form and C is the average gross selling price in such country of the Combination Product.

(iv) If the average gross selling price of such Licensed Components and the Other Component(s) in the same formulation and dosage or device form, as applicable, cannot be determined, then Net Sales will be calculated by multiplying the total Net Sales (as described above) of such Combination Product by a fraction to be determined by the Parties in good faith based on the relative value contributed by the Licensed Components and Other Components of such Combination Product.

(v) For purposes of calculating the average Net Sales per unit sold of a Licensed Component and Other Component(s) of a Combination Product, any of the deductions described herein that apply to such Combination Product shall be allocated among sales of the Licensed Component and sales of the Other Component(s) included in such Combination Product as follows: (1) deductions that are attributable solely to the Licensed Component or one of the

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Other Component(s) shall be allocated solely to Net Sales of the Licensed Component or such Other Component, as applicable, and (2) all other deductions shall be subject to a reasonable good-faith allocation by the Parties among sales of the Licensed Component and sales of the Other Component(s).

1.129 “NHP PD/Functional Data” means the non-human primate pharmacodynamic and/or functional evidence study results (and expressly excluding data from GLP Tox Studies), which (a) are generated in a controlled and head-to-head NHP study comparing the applicable bispecific or multispecific antibody to a CD40L monospecific antibody at matched exposure levels; (b) include at least one functional readout demonstrating incremental biological activity of the bispecific or multispecific antibody over a CD40L monospecific antibody; and (c) such functional readout(s) have some precedence for either predicting efficacy, or at least be strongly associated with the magnitude of efficacy, in the proposed human disease(s). For purposes of the foregoing, such data shall also demonstrate dual target engagement, including evidence that each binding domain of such bispecific or multispecific antibody is functionally active (e.g. based on assay of receptor occupancy and downstream pathway modulation), and all such data shall be generated within the same study and exposure range to enable appropriate attribution of observed effects. Such study shall be conducted in a stimulated challenge setting (e.g., antigen-driven) in which incremental effect can be meaningfully detected. For clarity, “functional readout” may include, by way of example and without limitation: [***].

1.130 “NMPA” means the National Medical Products Administration, formerly known as the China Food and Drug Administration, and local or provincial counterparts thereto, and any successor agency(ies) or authority thereto having substantially the same function.

1.131 “Non-Compete Period” has the meaning set forth in Section 3.6(a).

1.132 “Other Components” has the meaning set forth in Section 1.24.

1.133 “Out-of-Pocket Costs” means the reasonable and documented amounts paid by a Party or any of its Affiliates to Third Party subcontractors (without mark-up by such Party or any of its Affiliates) under arm’s length arrangements for services or material provided by such subcontractors in performance of activities under this Agreement.

1.134 “PartyorParties” has the meaning set forth in the preamble to this Agreement.

1.135 “PatentorPatents” means (a) all national, regional and international patents and patent applications, including any provisional patent application, (b) any patent applications claiming priority from such patent applications or provisional patent applications, including divisions, continuations, continuations-in-part and additions, (c) any patent that issues from any of the foregoing patent applications, including any utility or design patent or certificate of invention, and (d) any re-issues, renewals, extensions, substitutions, re-examinations or restorations, registrations and revalidations, and supplementary protection certificates and equivalents applicable to any of the foregoing.

1.136 “Patent Challenge” has the meaning set forth in Section 15.5(b).

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1.137 “Person” means any individual, sole proprietorship, corporation, joint venture, limited liability company, partnership, limited partnership, limited liability partnership, trust or any other private, public or governmental entity.

1.138 “Pharmacovigilance Agreement” has the meaning set forth in Section 7.9(a).

1.139 “Phase 1 Clinical Trial” means a Clinical Trial of a Licensed Product that is described as a phase 1 clinical trial in its protocol, or that would otherwise satisfy the requirements of 21 C.F.R. §312.21(a), as amended from time to time, or the corresponding requirements of any applicable jurisdiction in the Licensee Territory other than the United States.

1.140 “Phase 1/2 Clinical Trial” means a Clinical Trial of a Licensed Product that combines into a single protocol both a Phase 1 Clinical Trial and a Phase 2 Clinical Trial.

1.141 “Phase 2 Clinical Trial” means a Clinical Trial of a Licensed Product that is described as a phase 2 clinical trial in its protocol or that would otherwise satisfy the requirements of 21 C.F.R. §312.21(b), as amended from time to time, or the corresponding requirements of any applicable jurisdiction in the Licensee Territory other than the United States.

1.142 “Phase 2/3 Clinical Trial” means a Phase 2 Clinical Trial of a Licensed Product that is commenced without sufficient statistical powering to satisfy the criteria for a Phase 3 Clinical Trial but that becomes a Registrational Clinical Trial based on the strength of the Data generated in such Clinical Trial.

1.143 “Phase 3 Clinical Trial” means a Clinical Trial of a Licensed Product that would satisfy the requirements of 21 C.F.R. § 312.21(c), as amended from time to time, or the corresponding requirements of any applicable jurisdiction in the Licensee Territory other than the United States.

1.144 “PMDA” means the Japanese Pharmaceutical and Medical Device Administration or any successor agency thereto.

1.145 “Pricing and Reimbursement Approval” means any approval, agreement, determination or other decision by the applicable Governmental Authority of a country or jurisdiction that establishes prices charged to end-users for pharmaceutical or biologic products at which a particular pharmaceutical or biologic product will be reimbursed by applicable Governmental Authority in such country or jurisdiction.

1.146 “Prosecution” means, with respect to a Patent, the filing, preparation, prosecution (including conducting all correspondence and interactions with any patent office and seeking, conducting and defending any interferences, inter partes reviews, reissue proceedings, reexaminations, and oppositions and similar proceedings), and maintenance thereof, including obtaining patent term extensions, regulatory exclusivity, supplemental protection certificates, or their equivalents with respect thereto. When used as a verb, “Prosecute” and “Prosecuting” mean to engage in Prosecution. “Prosecution,” “Prosecute,” and “Prosecuting” exclude any enforcement action with respect to a Patent.

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1.147 “Public Official” means (a) any officer, employee or representative of any regional, federal, state, provincial, county or municipal government or government department, agency or other division; (b) any officer, employee or representative of any commercial enterprise that is owned or controlled by a government, including any state-owned or controlled veterinary or medical facility; (c) any officer, employee or representative of any public international organization, such as the African Union, the International Monetary Fund, the United Nations or the World Bank; and (d) any person acting in an official capacity for any government or government entity, enterprise or organization identified above.

1.148 “Quality Agreement” has the meaning set forth in Section 8.1(b)(i).

1.149 “Receiving Party” has the meaning set forth in Section 11.1.

1.150 “Registrational Clinical Trial” means a Clinical Trial of a Licensed Product conducted with a defined dose or set of defined doses of such Licensed Product on sufficient numbers of human patients, which Clinical Trial is prospectively designed to be sufficient for the filing of an MAA of such Licensed Product with the applicable Regulatory Authority in the Licensee Territory.

1.151 “Regulatory Approval” means, with respect to a Licensed Product in a region or a country, the approvals from the necessary Governmental Authority to import, market and sell such Licensed Product in such region or country (excluding Pricing and Reimbursement Approvals).

1.152 “Regulatory Authority” means any applicable Governmental Authority responsible for granting Regulatory Approvals for a Licensed Product, including the FDA, the EMA, the PMDA, the NMPA and any other corresponding national or regional Governmental Authority.

1.153 “Regulatory Exclusivity” means any exclusive marketing rights or data exclusivity rights (other than any exclusivity rights conferred by Patents) conferred by a Regulatory Authority on a Licensed Product under Applicable Laws in a country or jurisdiction in connection with the Regulatory Approval for such Licensed Product in such country or jurisdiction that prevents another party other than the Regulatory Approval holder and such Regulatory Authority from using and from otherwise relying on the Regulatory Approval or data supporting the Regulatory Approval for such Licensed Product without the prior written authorization of the Regulatory Approval holder.

1.154 “Regulatory Submissions” means (a) any filing, application, or submission with any Regulatory Authority, (b) any authorizations, approvals or clearances arising from the foregoing, including Regulatory Approvals and MAAs, (c) all material correspondence or communication with or from the relevant Regulatory Authority, and (d) the minutes of any material meetings, telephone conferences or discussions with the relevant Regulatory Authority, in each case, with respect to a Licensed Product.

1.155 “Remedial Action” has the meaning set forth in Section 7.10.

1.156 “Representative” has the meaning set forth in Section 11.1.

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1.157 “Requisite Amount” means (a) following the Initiation of a Phase 1 Clinical Trial for a Licensed Product in the Licensee Territory but prior to the Initiation of a Phase 2 Clinical Trial for a Licensed Product in the Licensee Territory, [***] dollars ($[***]), (b) following the Initiation of a Phase 2 Clinical Trial for a Licensed Product in the Licensee Territory but prior to receipt of top line data for a Phase 2 Clinical Trial for a Licensed Product in the Licensee Territory, [***] dollars ($[***]), or (c) following the Initiation of a Phase 3 Clinical Trial for a Licensed Product in the Licensee Territory, [***] dollars ($[***]).

1.158 “Reversion License” has the meaning set forth in Section 15.7(b).

1.159 “Reversion Terms” has the meaning set forth in Section 15.7(c).

1.160 “Royalty Payment” has the meaning set forth in Section 10.6(a).

1.161 “Royalty Term” has the meaning set forth in Section 10.6(b).

1.162 “Safety Risk” means a Party’s reasonable belief, based upon information that becomes available to such Party or an analysis of the existing information that is conducted by such Party, that a Licensed Product has a safety issue that would reasonably be expected to have a material adverse effect on the Development or Commercialization of Licensed Products.

1.163 “Sales Milestone Event” has the meaning set forth in Section 10.5(a).

1.164 “Sales Milestone Payment” has the meaning set forth in Section 10.5(a).

1.165 “Securities Regulator” has the meaning set forth in Section 11.2(d).

1.166 “Senior Executive” means (a) with respect to Innovent, its Chief Executive Officer (or any of his or her direct reports having authority to agree to a final resolution of a disputed matter under this Agreement) (or any of his or her direct reports having authority to agree to a final resolution of a disputed matter under this Agreement) and (b) with respect to Licensee, its Chief Executive Officer (or any of his or her direct reports having authority to agree to a final resolution of a disputed matter under this Agreement).

1.167 “Serious Adverse Event” means any Adverse Event that, at any dose: (a) results in death; (b) is life-threatening; (c) requires inpatient hospitalization or prolongation of existing hospitalization; (d) results in persistent or significant disability/incapacity; or (e) is a congenital anomaly/birth defect. In the case of other Adverse Events, medical and scientific judgment should be exercised in deciding whether expedited reporting is appropriate. Such events may be important medical events that may not be immediately life-threatening or result in death or hospitalization but which may jeopardize the patient or may require intervention to prevent one of the other outcomes listed in the first sentence of this definition. Such events should usually be considered Serious Adverse Events.

1.168 “Shelving Event” means, prior to the first Regulatory Approval in the United States of a Licensed Product, any consecutive [***] period during which Licensee fails to (a) conduct any Material Development Activity and (b) expend at least the Requisite Amount (based on external costs only and excluding internal cost (e.g., direct labor costs)) with respect to the

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Licensed Compound and Licensed Product; provided that, any such failure is not attributable to a Justified Delay. For clarity, satisfaction of the criterion in clause (a) and (b) above with respect to one Licensed Product during an applicable period precludes the occurrence of a Shelving Event during such period.

1.169 “Sole Inventions” has the meaning set forth in Section 14.1(b).

1.170 “Sublicensee” means a Third Party to whom Licensee or any of its Affiliates has granted or grants a sublicense under any of the rights or licenses granted to Licensee pursuant to this Agreement. For clarity, a Third Party that was granted a further sublicense (including through multiple tiers) by a Sublicensee will also be deemed a Sublicensee and such further Sublicensee will be bound by the terms of this Agreement applicable to Sublicensees.

1.171 “Supply Agreement” has the meaning set forth in Section 8.1(b)(i).

1.172 “Target” means any receptor, ligand or other molecule that is potentially associated with a disease or condition, and potentially has a biological activity that is modified by direct interaction with an antibody.

1.173 “Targeting” means, with respect to a Target and any Licensed Compound or other compound, product, antibody, antibody fragment or agent, that such Licensed Compound or other compound, product or agent binds to and activates, inhibits, or otherwise modulates such Target as its primary mechanism of action.

1.174 “Tax” or “Taxes” means any present or future taxes, levies, imposts, duties, charges, assessments or fees of any nature (including any interest thereon), including VAT.

1.175 “Term” has the meaning set forth in Section 15.1(a).

1.176 “Terminated Product” means each Licensed Product that Licensee is Developing and/or Commercializing at the time of termination.

1.177 “Third Party” means an entity other than (a) Licensee and its Affiliates or (b) Innovent and its Affiliates.

1.178 “Third Party Infringement Claim” has the meaning set forth in Section 14.4.

1.179 “Third Party License” has the meaning set forth in Section 10.6(c)(ii).

1.180 “U.S.” means the United States and its territories.

1.181 “U.S. Dollars” means United States dollars, the lawful currency of the U.S.

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1.182 “Valid Claim” means (a) a claim of an issued and unexpired Patent that has not been permanently revoked or held unenforceable or invalid by a decision of a court or other governmental agency of competent jurisdiction, which decision is not appealable or is not appealed within the time allowed for appeal, and has not been abandoned, disclaimed or admitted to be invalid or unenforceable through reissue, disclaimer or otherwise or (b) a claim of a pending Patent application that (i) has not been pending for more than [***] years from the filing date of the earliest Patent application from which such pending Patent application derives priority, and (ii) (A) has not been cancelled, withdrawn or abandoned, or (B) finally rejected by an administrative agency action from which no appeal can be taken or that has not been appealed within the time allowed for appeal; provided that, in the case of a pending claim that ceases to be a Valid Claim due to the foregoing time limit of clause (b)(i), if such pending claim later issues, such claim shall thereafter be considered a Valid Claim for all purpose hereunder so long as it meets the requirements of clause (a).

1.183 “VAT” means value-added taxes or other similar taxes.

1.184 “Withholding Amount” has the meaning set forth in Section 10.10(b).

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Additional Definitions:

 

Additional Data Plan

Section 10.3(d)

Additional Development and Regulatory Milestone Event

Section 10.4(a)

Additional Development and Regulatory Milestone Payment

Section 10.4(a)

[***]

Section 3.6(d)

Ancillary Agreement

Section 17.7

Consulting Firm

Section 2.2(e)(iii)(B)

Development Plans

Section 5.3

Entity

Section 17.9

Extended Option Period

Section 3.9(b)

Initial Option

Section 3.9(b)

Initial Option Period

Section 3.9(b)

Joint Patent Committee or JPC

Section 2.4

Launch Quarter

Section 10.6(c)(iv)

Licensee Development Plan

Section 5.3

Licensee Product Patents

Section 14.3(a)

[***]

Section 1.47

Negotiation Period

Section 8.1(e)

Notified Party

Section 2.2(e)(iii)(A)

Notifying Party

Section 2.2(e)(iii)(A)

Option

Section 3.9(b)

Option Exercise Fee

Section 3.9(e)

Product Infringement

Section 14.5(b)(i)

Safety Matter

Section 2.2(e)(iii)(A)

Safety Matter Notice

Section 2.2(e)(iii)(A)

Secondary Manufacturer

Section 8.1(e)

Selling Party

Section 1.128

Regulatory Assistance

Section 7.5

Regulatory and Technology Transfer

Section 4.1(a)

Regulatory and Technology Transfer Plan

Section 4.1(a)

Reversion Sublicense Terms

Section 15.7(c)

Tax Action

Section 10.10(b)

 

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ARTICLE 2

GOVERNANCE

2.1 Alliance Managers. Promptly following the Effective Date, each Party shall designate an individual to act as the primary business contact for such Party for matters related to this Agreement (each such individual appointed, an “Alliance Manager”), unless another individual is expressly specified in this Agreement or designated by the Parties for a particular purpose. The Alliance Managers will (a) facilitate the flow of information between the Parties and otherwise promote communication, coordination and collaboration between the Parties by providing central points of contact for communication by and between the Parties’ functions/subject matter experts; and (b) manage the JSC (and any other Committee) meetings by (i) calling meetings; (ii) preparing and issuing minutes of each such meeting within [***] thereafter; and (iii) preparing and circulating an agenda for each upcoming meeting of each Committee, in each case, at the direction of and in consultation with the then-current chair of the applicable Committee. Each Party may remove and replace its Alliance Manager at any time by written notice to the other Party.

2.2 Committees.

(a)
Joint Steering Committee. Within [***] following the Effective Date, Innovent and Licensee will establish a joint steering committee (the “Joint Steering Committee” or “JSC”), in accordance with Section 2.2(b), to monitor the overall collaboration between the Parties under this Agreement, including monitoring the Development of the Licensed Compounds and Licensed Products in the Licensee Territory and in the Innovent Territory, and to serve as a forum for the exchange and discussion of information with respect thereto. The JSC will be responsible for:
(i)
establishing such Committees as are necessary or advisable, if any, to undertake any of the responsibilities of the JSC delegated to such subcommittee by the JSC or to further the purposes of this Agreement;
(ii)
reviewing and discussing the Development Plans and any amendments or updates thereto;
(iii)
reviewing and monitoring the progress of Development activities under this Agreement;
(iv)
monitoring the strategic direction of the collaboration between the Parties under this Agreement with respect to the Licensed Compounds and Development and regulatory activities with respect thereto in the Licensee Territory and the Innovent Territory;
(v)
discussing the Parties’ proposals to conduct Innovent Combination Clinical Trials and Licensee Combination Clinical Trials; and
(vi)
undertaking such other matters as are specifically assigned to the JSC in this Agreement.

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(b)
Membership. The JSC will be composed of [***] representatives of each of Innovent and Licensee (or such other equal number of representatives of each Party as agreed in writing by Innovent and Licensee). Each Party will appoint its initial JSC representatives by written notice to the other Party within [***] of the Effective Date and will appoint its initial representatives to any other Committee by written notice to the other Party within [***] of establishment of such Committee. Either Party may replace its respective Committee representatives at any time with prior written notice to the other Party; provided that each Party will ensure that, at all times during the existence of a Committee, such Party’s Committee representatives (initial or replacement) have appropriate expertise and sufficient seniority to represent such Party regarding matters before the JSC; provided further, that the Parties shall use reasonable efforts not to make changes to such representatives during the [***] after establishment of each Committee. With respect to the JSC, each Party will ensure that at all times during the existence of the JSC at least one of each Party’s JSC representatives is a [***]. A member of the JSC may also be a member of any other Committee established by the JSC if so desired by the Party who appoints such member.
(c)
Meetings. Each of the Committees, once established, will meet at least [***], or more or less often as otherwise agreed to by the Parties. Responsibility for chairing Committee meetings will alternate between the Parties. The chair for any Committee meeting will not have any greater authority than any other representative of either Party on such Committee. All Committee meetings may be conducted by telephone, video-conference, or in person. Each Party will bear its own personnel and travel costs and expenses relating to participation in Committee meetings. Upon each Party’s invitation, a reasonable number of additional representatives of such Party may attend Committee meetings in a non-voting capacity (provided that such additional representatives shall be bound by written confidentiality and non-use obligations consistent with the terms of this Agreement).
(d)
Minutes. The Alliance Managers of each Party shall alternate the responsibility for preparing minutes of each Committee meeting. The chair of each Committee meeting will be responsible for ensuring draft minutes of such Committee meeting are circulated by the responsible Alliance Manager to all members of such Committee for comments. Such minutes will provide a description, in reasonable detail, of the discussions at the meeting. The Alliance Managers of each Party will promptly discuss any comments on such minutes and finalize the minutes no later than the date of the next applicable Committee meeting.
(e)
Decision-Making. Decisions of the JSC will be made by unanimous vote, with each Party’s representatives on such Committee collectively having one vote. No vote of the JSC may be taken unless at least one of each Party’s representatives is present for such vote. If after reasonable discussion and good faith consideration of each Party’s view on a particular matter before the JSC, the JSC cannot reach a decision as to such matter within [***] after such matter was brought to the JSC for resolution, then:
(i)
With respect to any such matter that is primarily related to the Innovent Territory, the JSC representatives of Innovent shall have final decision-making authority with respect to any such matter; provided that, without limiting subsection (iii), such representative of Innovent shall not exercise such final-decision marking authority in a manner that would reasonably be expected to have a material adverse effect on the Exploitation of Licensed Products in the Licensee Territory.

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(ii)
With respect to any matter that is primarily related to the Licensee Territory, the JSC representatives of Licensee shall have final decision-making authority with respect to such matter; provided that, without limiting subsection (iii), such representative of Licensee shall not exercise such final-decision marking authority in a manner that would reasonably be expected to have a material adverse effect on the Exploitation of Licensed Products in the Innovent Territory.
(iii)
Safety Risk.
(A)
In the event that, after taking into account safety profiles for pharmaceutical agents in the Field for Indications within the Parties’ respective Development Plans and drug-related Serious Adverse Events expected from proposed Development activities, a Party (a “Notifying Party”) reasonably believes in good faith, based upon information that becomes available to such Party or an analysis of the existing information that is conducted by such Party, that the Development of a Licensed Product proposed by the other Party (the “Notified Party”) poses a Safety Risk ( the matter as to whether such activity may result in such a Safety Risk, a “Safety Matter”), then the Notifying Party may provide written notice to the Notified Party (each, a “Safety Matter Notice”) stating such belief, including a detailed explanation of the Notifying Party’s basis therefor and such Party’s recommended course of action to address the Safety Risk. If the Notified Party does not agree with Notifying Party’s recommended course of action, the Parties shall refer such dispute, within [***] of the initial written notice under this Section 2.2(e)(iii), to the JSC. The JSC shall attempt in good faith to resolve such dispute. If the JSC is unable to resolve a given dispute under this Section 2.2(e)(iii)(A) within [***] after being referred such dispute, the Parties shall refer such dispute to the respective Senior Executives, and such Senior Executives shall attempt in good faith to resolve such dispute. If the Senior Executives are unable to resolve a given dispute under this Section 2.2(e)(iii)(A) within [***] after being referred such dispute, the dispute shall be resolved pursuant to subsection (B) of this Section 2.2(e)(iii).
(B)
If the Parties are unable to resolve any dispute that arises under subsection (A) of this Section 2.2(e)(iii), the Parties shall engage an independent, impartial and conflict-free Third Party consulting firm which shall have relevant subject matter expertise and experience (the “Consulting Firm”). The Consulting Firm shall be mutually agreed to by the Parties. The Parties shall use their best efforts to cause the Consulting Firm to be selected and retained within [***] of the end of the [***] period referred to in subsection (A) above. The fees and expenses of the Consulting Firm shall be borne by the Notifying Party. With respect to any such dispute referred to the Consulting Firm pursuant to this subsection (B), the Consulting Firm shall be entitled to make either of the following determinations: (1) that such activity creates a Safety Risk that could reasonably be expected to have a material adverse effect on the Development or Commercialization of such Licensed Product in the Notifying Party’s Territory, in which case the Consulting Firm shall specify the steps to be taken to address such safety issue, or (2) that the Notified Party’s proposed activity does not create a potential Safety Risk that could reasonably be expected to have a material adverse effect on the Development or Commercialization of such Licensed Product in the Notifying Party’s Territory.

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(C)
Upon receipt of a Safety Matter Notice, the Notified Party shall suspend (with respect to any ongoing activity, subject to ethical obligations to continue support of subjects already enrolled in a Clinical Trial) or not commence (with respect to any proposed activity) the Development or Commercialization activity that is the subject of such Safety Matter Notice unless and until the Safety Matter that is the subject of such Safety Matter Notice is resolved in accordance with this Section 2.2(e)(iii) and may only continue or commence such activity if such Safety Matter is resolved in the Notified Party’s favor in accordance with this Section 2.2(e)(iii) or the Parties (after considering in good faith any recommendation of the Consulting Firm) mutually agree on steps to be taken to address such safety issue.
(iv)
Notwithstanding any other provision of this Article 2 to the contrary, the JSC, in the exercise of the foregoing decision-making authority, will not have the right to: (A) modify or amend the terms and conditions, or waive any term or condition, of this Agreement; (B) determine any issue in a manner that would conflict with, or cause a Party to breach or violate, the terms and conditions of this Agreement or any Applicable Laws; (C) make any determination that a Party is in breach (or not in breach) of this Agreement; (D) make a decision that is expressly stated to require the written agreement or written consent of the Parties; or (E) cause the other Party to undertake any activities or incur any costs without such other Party’s prior written consent. Except as provided in Section 2.2(e)(iii), no matters within the scope of the JSC’s authority will be subject to the dispute resolution provisions set forth in Article 16.

2.3 Scope of Governance. Notwithstanding the creation of a Committee, each Party will retain the rights, powers and discretion granted to it hereunder, and no Committee will be delegated or vested with rights, powers or discretion unless such delegation or vesting is expressly provided herein. No decision of a Committee will be in contravention of any terms and conditions of this Agreement. Only those specific issues that are expressly provided in this Agreement to be decided by such Committee may be decided by such Committee. Each Party has final decision-making authority with respect to the implementation of its operational, day-to-day activities.

2.4 Joint Patent Committee.

(a)
Formation. Within [***] following the establishment of the JSC, the JSC will establish as a subcommittee of the JSC a joint patent committee (the “Joint Patent Committee” or “JPC”), in accordance with Section 2.2(c), to monitor the Parties’ Patent Prosecution activities in accordance with Article 14 with respect to Licensed Patents and to serve as a forum for the exchange and discussion of information with respect thereto and perform such other functions as set forth in this Agreement, or as the Parties may mutually agree, except where in conflict with any provision of this Agreement. The JPC shall be consultative in nature and shall not have any decision-making authority.
(b)
Composition. The JPC will be comprised of up to [***] patent attorneys representing each Party. In the event the Parties use mutually agreed outside counsel to Prosecute one or more of the Licensed Patents hereunder, such counsel may attend JPC meetings, provided that the Parties shall first execute a mutually-acceptable common interest agreement. As appropriate, and solely to the extent consistent with the terms and conditions of any applicable common interest agreement, additional employees or consultants of each Party may, from time to time, attend the JPC meetings as nonvoting observers; provided that, no Third Party personnel may

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attend unless otherwise agreed by both Parties, such Third Party is bound by confidentiality and non-use obligations consistent with the terms of this Agreement, and such attendance is consistent with the terms and conditions of any applicable common interest agreement. In addition, the Parties acknowledge and agree that, with regard to such Prosecution or enforcement of Joint Patents, the interests of the Parties are to obtain the strongest patent protection possible, and as such are aligned and are legal in nature.

2.5 Discontinuation of Committees. All Committees will continue to exist until the first to occur of: (a) the Parties’ written agreement to disband such Committee; and (b) unless otherwise agreed by the Parties, the first Regulatory Approval of the first Licensed Product in the U.S. Upon the occurrence of any event described in clause (a) or (b) above, all Committees will disband and shall have no further authority or duties under this Agreement. After the JSC ceases to exist, (i) each Party shall designate a contact person for the exchange of information previously exchanged through the JSC, and (ii) any decisions that are designated under this Agreement as being subject to the review or approval of the JSC will be made by written agreement of the Parties directly, subject to the other terms and conditions of this Agreement.

2.6 Joint Global Study. If either Party wishes to conduct a multi-regional Clinical Trial with a Licensed Product that includes the Licensee Territory and the Innovent Territory, (a) such Party shall submit to the JSC the proposed strategy, protocol design, expected budget and process timeline for such Clinical Trial for review and discussion and (b) if the Parties agree that such Clinical Trial may be conducted, the Parties shall prepare a joint development plan that sets forth the timeline, budget, cost allocation, and other details of such Clinical Trial to be conducted by or on behalf of the Parties, and shall submit such plan to the JSC for its review and approval.

ARTICLE 3

LICENSES; NON-COMPETITION, AND OPTION

3.1 License Grant to Licensee. Subject to the terms and conditions of this Agreement, Innovent, on behalf of itself and its Affiliates, hereby grants to Licensee the following licenses:

(a)
an exclusive (even as to Innovent and its Affiliates, subject to Section 3.4), non-transferable (except as set forth in Section 17.4), royalty-bearing license (or sublicense with respect to any Licensed Technology that is in-licensed by Innovent or any of its Affiliates from a Third Party), with the right to grant sublicenses through multiple tiers (in accordance with Section 3.3), under the Licensed Technology to Exploit the Licensed Compounds and Licensed Products in the Field in the Licensee Territory; and
(b)
a non-exclusive, non-transferable (except as set forth in Section 17.4), royalty-bearing license (or sublicense with respect to any Licensed Technology that is in-licensed by Innovent or any of its Affiliates from a Third Party), with the right to grant sublicenses through multiple tiers (in accordance with Section 3.3), under the Licensed Technology to non-clinically Develop and Manufacture the Licensed Compounds and Licensed Products in the Field in the Innovent Territory, solely to the extent required or reasonably useful in connection with the

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Development, Manufacture and Commercialization of such Licensed Compounds and Licensed Products in the Field in the Licensee Territory.

The above licenses exclude Excluded Innovent Know-How and Innovent shall not be obligated to disclose such Excluded Innovent Know-How to Licensee; provided that, if at any time during the Term, Innovent files a Patent Covering or claiming Excluded Formulation Know-How that is necessary or reasonably useful to Exploit any Licensed Compound or Licensed Product (each, an “Innovent Formulation Patent”), then (a) Innovent will provide Licensee with prompt written notice which notice shall include a description of such Innovent Formulation Patent, and (b) thereafter if Licensee notifies Innovent that Licensee wishes to include the Innovent Formulation Patent as Licensed Patent for purposes of this Agreement, the Parties will negotiate in good faith the terms pursuant to which the Innovent Formulation Patent will be included as Licensed Patent for purposes of this Agreement.

(c)
For the avoidance of doubt, nothing in this Agreement shall restrict Licensee or its Affiliates or Sublicensees from independently developing and Exploiting Know-How that is the same or similar to Excluded Innovent Know-How or from developing and Exploiting Know-How that is or becomes publicly known or is learned by Licensee from a source that is permitted to disclose such Know-How without any breach of a confidentiality and non-use obligation owed to Innovent. In addition, notwithstanding the exclusion of Excluded Innovent Know-How from the licenses granted to Licensee in Sections 3.1(a) and (b) above, subject to Licensee’s obligations pursuant to Article 11, Licensee and its Affiliates and Sublicensees shall be permitted to use Excluded Innovent Know-How that Innovent discloses to Licensee for the Exploitation of Licensed Products.
(d)
The above licenses exclude Innovent Formulation Patents. If the Exploitation, by Licensee or any Affiliate or Sublicensee or any Third Party customer of Licensee or any such Affiliate or Sublicensee, of any Licensed Product infringes a claim of an Innovent Formulation Patent (an “Innovent Formulation Blocking Claim”), Innovent covenants and agrees that it and its Affiliates will not enforce such Innovent Formulation Blocking Claim against Licensee or any Affiliate or Sublicensee of Licensee or any Third Party customer of Licensee or any such Affiliate or Sublicensee, as the case may be, solely with respect to any such Person’s Exploitation of such Licensed Product in the Licensee Territory. Innovent further covenants and agrees that it shall not assign or otherwise transfer any Innovent Formulation Patent that includes an Innovent Formulation Blocking Claim to any Third Party except pursuant to an enforceable written assignment or other written agreement in which such Third Party agrees to assume the covenants of Innovent set forth in this Section 3.1(d) and that specifies Licensee, its Affiliates and Sublicensees and any Third Party customers of Licensee and any such Affiliate or Sublicensee are third party beneficiaries of such covenants.
(e)
The above licenses exclude Innovent Combination Patents, and Innovent shall not be obligated to disclose Innovent Combination Clinical Trial Know-How to Licensee. If the Exploitation, by Licensee or any Affiliate or Sublicensee or any Third Party customer of Licensee or any such Affiliate or Sublicensee, of any Licensed Product infringes a claim of an Innovent Combination Patent (an “Innovent Combination Blocking Claim”), Innovent covenants and agrees that it and its Affiliates will not enforce such Innovent Combination Blocking Claim against Licensee or any Affiliate or Sublicensee of Licensee or any Third Party customer of

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Licensee or any such Affiliate or Sublicensee, as the case may be, solely with respect to any such Person’s Exploitation of such Licensed Product in the Licensee Territory. Innovent further covenants and agrees that it shall not assign or otherwise transfer any Innovent Combination Patent that includes an Innovent Combination Blocking Claim to any Third Party except pursuant to an enforceable written assignment or other written agreement in which such Third Party agrees to assume the covenants of Innovent set forth in this Section 3.1(e) and that specifies Licensee, its Affiliates and Sublicensees and any Third Party customers of Licensee and any such Affiliate or Sublicensee are third party beneficiaries of such covenants.

For clarity, the non-assertion covenants in the foregoing clauses (d) and (e) do not constitute licenses to use any Innovent Combination Patent or Innovent Formulation Patent.

Licensee acknowledges and agrees that (a) Innovent obtained the rights to certain Licensed Technology under the Existing Upstream License Agreement; (b) the licenses granted by Innovent to Licensee under this Section 3.1 with respect to such Licensed Technology constitute sublicenses under the Existing Upstream License Agreement and are subject and subordinate to Sections 2.4, 2.5, 3, 4.3.1, 4.3.2, 8, 9.2 and 10.5 of the Existing Upstream License Agreement; (c) Licensee shall comply with Sections 2.4, 2.5, 4.2, 4.3.1, 4.3.2, 6.1, 6.3, 8, 10.5 and 15.4 of the Existing Upstream License Agreement as applicable to Licensee as a sublicensee; and (d) Innovent’s licenses to certain Licensed Technology under the Existing Upstream License Agreement and the licenses granted by Innovent to Licensee under this Section 3.1 with respect to such Licensed Technology are non-exclusive. Innovent shall use commercially reasonable efforts to obtain, promptly following the Effective Date, any consent or approval required under the Existing Upstream License Agreement to permit Innovent to grant the sublicenses to Licensee hereunder with respect to Licensed Technology owned or controlled by [***], including any such consent or approval required to permit Licensee to grant further sublicenses with respect to such Licensed Technology; provided that, (i) Licensee agrees to cooperate with Innovent and provide any reasonable assistance to Innovent as Innovent may reasonably request in order to facilitate Innovent’s negotiations with [***] with respect to such consent or approval and (ii) if Innovent, despite using commercially reasonable efforts, is unable to obtain any such consent or approval, Innovent shall discuss in good faith with Licensee a reasonable arrangement that will provide Licensee with all of the benefits of, subject to the related obligations under, such Upstream License Agreement as if the appropriate consent or approval had been obtained. Innovent shall keep Licensee reasonably informed of the status of such efforts, including by consulting with Licensee regarding each draft of any such consent or approval and considering in good faith any timely comments thereon provided by Licensee.

3.2 License Grant to Innovent. Subject to the terms and conditions of this Agreement, Licensee, on behalf of itself and its Affiliates, hereby grants to Innovent the following licenses:

(a)
an exclusive, non-transferable (except as set forth in Section 17.4), fully-paid up and royalty-free, perpetual and irrevocable license, with the right to grant sublicenses through multiple tiers, under the Licensee Product IP to Exploit the Licensed Compounds and Licensed Products in the Field in the Innovent Territory, and

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(b)
a non-exclusive, non-transferable (except as set forth in Section 17.4), fully-paid up and royalty-free, perpetual and irrevocable license, with the right to grant sublicenses through multiple tiers, under the Licensee Product IP (i) to research, non-clinically Develop, Manufacture and have Manufactured (directly or through its Affiliates or any Third Party) Licensed Compounds and Licensed Products in the Field in the Licensee Territory solely to the extent required or reasonably useful in connection with the Development, Manufacture and Commercialization of Licensed Compounds and the Licensed Products in the Field in the Innovent Territory; (ii) solely with Licensee’s prior written consent, to conduct Innovent Combination Clinical Trials in the Licensee Territory; and (iii) to conduct any research and non-clinical Development activities with respect to Innovent Combination Therapy in the Licensee Territory. Notwithstanding the foregoing, the licenses granted by Licensee to Innovent in this Section 3.2 do not include licenses to Know-How or Patents Controlled by Licensee or its Affiliates that Licensee and its Affiliates do not use with Licensed Compounds and Licensed Products in the Licensee Territory or to any compound proprietary to Licensee or its Affiliates other than Licensed Compounds.

The above licenses exclude Excluded Licensee Know-How and Licensee shall not be obligated to disclose such Excluded Licensee Know-How to Innovent; provided that, if at any time during the Term, Licensee files a Patent Covering or claiming formulation Know-How that is necessary or reasonably useful to Exploit any Licensed Compound or Licensed Product (each, a “Licensee Formulation Patent”), then (a) Licensee will provide Innovent with prompt written notice which notice shall include a description of such Licensee Formulation Patent, and (b) thereafter if Innovent notifies Licensee that Innovent wishes to include the Licensee Formulation Patent as Licensee Product IP for purposes of this Agreement, the Parties will negotiate in good faith the terms pursuant to which the Licensee Formulation Patent will be included as Licensee Product IP for purposes of this Agreement.

(x)
For the avoidance of doubt, nothing in this Agreement shall restrict Innovent or its Affiliates or (sub)licensees from independently developing and Exploiting Know-How that is the same or similar to Excluded Licensee Know-How or from developing and Exploiting Know-How that is or becomes publicly known or is learned by Innovent from a source that is permitted to disclose such Know-How without any breach of a confidentiality and non-use obligation owed to Licensee. In addition, notwithstanding the exclusion of Excluded Licensee Know-How from the licenses granted to Innovent in Sections 3.2 (a) and (b) above, subject to Innovent’s obligations pursuant to Article 11, Innovent and its Affiliates and (sub)licensees shall be permitted to use Excluded Licensee Know-How that Licensee discloses to Innovent for the Exploitation of Licensed Products.
(y)
The above licenses exclude Licensee Formulation Patents. If the Exploitation, by Innovent or any Affiliate or (sub)licensee or any Third Party customer of Innovent or any such Affiliate or (sub)licensee, of any Licensed Product infringes a claim of a Licensee Formulation Patent (a “Licensee Formulation Blocking Claim”), Licensee covenants and agrees that it and its Affiliates will not enforce such Licensee Formulation Blocking Claim against Innovent or any Affiliate or (sub)licensee of Innovent or any Third Party customer of Innovent or any such Affiliate or (sub)licensee, as the case may be, solely with respect to any such Person’s Exploitation of such Licensed Product in the Innovent Territory. Licensee further covenants and agrees that it shall not assign or otherwise transfer any Licensee Formulation Patent that includes

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a Licensee Formulation Blocking Claim to any Third Party except pursuant to an enforceable written assignment or other written agreement in which such Third Party agrees to assume the covenants of Licensee set forth in this Section 3.2(y) and that specifies Innovent, its Affiliates and (sub)licensees and any Third Party customers of Innovent and any such Affiliate or (sub)licensee are third party beneficiaries of such covenants.
(z)
The above licenses exclude Licensee Combination Patents, and Licensee shall not be obligated to disclose Licensee Combination Clinical Trial Know-How to Innovent. If the Exploitation, by Innovent or any Affiliate or (sub)licensee or any Third Party customer of Innovent or any such Affiliate or (sub)licensee, of any Licensed Product infringes a claim of a Licensee Combination Patent (a “Licensee Combination Blocking Claim”), Licensee covenants and agrees that it and its Affiliates will not enforce such Licensee Combination Blocking Claim against Innovent or any Affiliate or (sub)licensee of Innovent or any Third Party customer of Innovent or any such Affiliate or (sub)licensee, as the case may be, solely with respect to any such Person’s Exploitation of such Licensed Product in the Innovent Territory. Licensee further covenants and agrees that it shall not assign or otherwise transfer any Licensee Combination Patent that includes a Licensee Combination Blocking Claim to any Third Party except pursuant to an enforceable written assignment or other written agreement in which such Third Party agrees to assume the covenants of Licensee set forth in this Section 3.2(z) and that specifies Innovent, its Affiliates and (sub)licensees and any Third Party customers of Innovent and any such Affiliate or (sub)licensee are third party beneficiaries of such covenants.

For clarity, the non-assertion covenants in the foregoing clauses (y) and (z) do not constitute licenses to use any Licensee Combination Patent or Licensee Formulation Patent.

Neither Licensee nor its Affiliates shall negotiate or obtain an upstream license agreement with any Third Party that includes a license within the Innovent Territory to any Patent or Know-How that will constitute Licensee Product IP without the prior written consent of Innovent, excluding non-exclusive license agreements for licenses of a scope of use within the scope of the license set forth in Section 3.1(b). Subject to the foregoing, Innovent acknowledges and agrees that if Innovent provides such consent and the licenses granted by Licensee to Innovent under this Section 3.2 with respect to Licensee Product IP constitute sublicenses under any such upstream license agreement between Licensee or any of its Affiliates, on the one hand, and Third Party licensors, on the other hand, then such licenses under this Section 3.2 shall be subject and subordinate to all applicable provisions of such upstream license agreements and Innovent shall be responsible for paying to Licensee any royalty, milestone and other license fee amounts thereunder that are reasonably attributable to Innovent’s sublicense thereunder; provided that, Innovent may elect not to receive a sublicense under any such Licensee Product IP and if Innovent makes such election, such Licensee Product IP shall not be sublicensed to Innovent under this Section 3.2 unless and until Innovent has agreed to the foregoing obligations.

3.3 Right to Sublicense.

(a)
Licensee has the right to sublicense (through multiple tiers) any of its licenses granted to it under Section 3.1 to an Affiliate of Licensee or any Third Party, in each case, subject to the terms of this Section 3.3. Licensee will provide Innovent with (i) prior written notice of each such sublicense and (ii) a fully executed, true, and complete copy of each sublicense

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agreement with any such Sublicensee no later than [***] after the execution thereof; provided that Licensee may redact confidential or commercially sensitive information that is not reasonably necessary for Innovent to monitor Licensee’s compliance with this Agreement.
(b)
Licensee will remain directly responsible for all its obligations under this Agreement, regardless of whether any such obligation is delegated, subcontracted or sublicensed to any of its Affiliates, Sublicensees, or subcontractors. Any action by any Affiliate, Sublicensee, or subcontractor of Licensee that would result in a breach of the terms or conditions of this Agreement will be deemed a direct breach by Licensee of such terms or conditions. Licensee will, prior to engaging any Affiliate, Sublicensee, or subcontractor, enter into a written agreement with such Person containing terms and conditions that are consistent with the terms and conditions of this Agreement, including requiring such Person to protect and keep confidential any Confidential Information of Innovent in accordance with written confidentiality and non-use obligations no less restrictive than those set forth in Article 11.

3.4 Retained Rights.

(a)
Innovent hereby expressly retains, on behalf of itself (and its Affiliates) all rights under the Licensed Technology that are not expressly licensed to Licensee. Licensee hereby expressly retains, on behalf of itself (and its Affiliates) all rights under Know-How and Patents Controlled by Licensee and its Affiliates that are not expressly licensed to Innovent.
(b)
Innovent hereby expressly retains, on behalf of itself (and its Affiliates), all rights under the Licensed Technology as are necessary, either itself or through its Affiliates, subcontractors or Sublicensees, to exercise Innovent’s rights or fulfill Innovent’s obligations under this Agreement, including to Manufacture and have Manufactured Licensed Products and Licensed Compounds for supply to and use by Licensee in the Licensee Territory.
(c)
For clarity, Innovent retains the exclusive and worldwide right to use the Innovent Platform Technology to Exploit any compound and product other than the Licensed Compounds and Licensed Products.

3.5 No Implied Licenses; Negative Covenant. Except as set forth herein, nothing in this Agreement grants any license or other intellectual property interest of either Party to the other Party, by implication or otherwise, under any Know-How, trademarks or Patents of the other Party. Each Party shall not, and shall not permit any of its Affiliates, Sublicensees (or (sub)licensees in the case of Innovent), or subcontractors to, practice any Patent or Know-How licensed to it by the other Party outside the scope of the licenses granted to such Party under this Agreement.

3.6 Non-Competition. Subject at all times to Section 3.7, Section 3.8, and Section 3.9:

(a)
Licensee Non-Compete. From the Effective Date until the fifth (5th) anniversary thereof (the “Non-Compete Period”), neither Licensee nor its Affiliates or Sublicensees will, without Innovent’s prior written consent, directly or indirectly, by themselves or in collaboration with any Third Party, clinically develop or Commercialize any Competing Product in the Licensee Territory (including through any license or grant of rights, authorization, appointment or permission), in each case, other than through activities conducted by or on behalf

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of Licensee and its Affiliates and Sublicensees with respect to Licensed Compounds and Licensed Products as contemplated under this Agreement.
(b)
Innovent Non-Compete. During the Non-Compete Period, neither Innovent nor any of its Affiliates shall, without the prior written consent of Licensee, directly or indirectly, by themselves or in collaboration with any Third Party, clinically develop or Commercialize any Competing Product in the Licensee Territory (including through any license or grant of rights, authorization, appointment or permission); provided that the restriction in this Section 3.6(b) shall automatically terminate with respect to any Distinguishable Competing Product if Innovent provides Licensee with an opportunity to exercise the Option for such Distinguishable Competing Product pursuant to Section 3.9 and Licensee fails to or declines to exercise such Option during the Initial Option Period or Extended Option Period, as applicable.
(c)
Other Modalities. For the avoidance of doubt, neither Party shall be restricted from research, clinically Developing or Commercializing any product Targeting CD40L in a modality other than a monoclonal, bispecific or multispecific antibody modality, including but not limited to any antibody drug conjugates, and any such product shall not be deemed a Competing Product for purposes of this Agreement.
(d)
[***] Exception. Notwithstanding anything to the contrary in Section 3.6(b), Innovent’s Affiliate [***] Biologics (“[***]”) shall have the right to continue to provide contract development and manufacturing (CDMO) services to Third Parties on a fee for service basis with respect to Competing Products in the Licensee Territory and the conduct of such services shall not constitute a breach by Innovent of its obligations set forth in Section 3.6(b); provided that, for so long as [***] conducts such services, Innovent and [***] shall implement firewall procedures in accordance with Section 3.7; and provided further that, without limiting Section 3.1(a) or Section 15.1(b), Innovent shall not at any time while Licensee’s exclusive license under the Licensed Technology pursuant to Section 3.1(a) or Section 15.1(b) remains in force, authorize, license or otherwise permit or assist [***] to practice the Licensed Patents to provide CDMO services to Third Parties with respect to Licensed Products or Competing Products in the Licensee Territory.

3.7 Non-Compete: Effects of Change of Control. Notwithstanding Section 3.6(a) and Section 3.6(b), if a Party (each, a “Change of Control Party”) undergoes a Change of Control with a Third Party or Licensee grants a Sublicense to a Third Party (such Third Party, together with any of its Affiliates existing prior to such Change of Control or such Sublicensee together with its Affiliates, an “Acquisition Party”), the Acquisition Party shall have the right to engage in the Exploitation of a Competing Product that would otherwise be prohibited by Section 3.6(a) or Section 3.6(b), as applicable, and such conduct shall not constitute a breach by such Party of its obligations set forth in Section 3.6(a) or Section 3.6(b), as applicable, provided that (i) such Acquisition Party Exploits the Competing Product independently of the activities under this Agreement and does not use any Licensed Technology (with respect to Licensee as the Change of Control Party), any Licensee Product IP (with respect to Innovent as the Change of Control Party) or any Confidential Information of either Party (with respect to either Party as the Change of Control Party) in the Exploitation of such Competing Product, and (ii) such Change of Control Party and such Acquisition Party institute and enforce commercially reasonable technical and administrative procedures and safeguards designed to ensure that the requirements set forth in the

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foregoing clause (i) are met, including by creating “firewalls” to prevent disclosure of non-public plans or non-public information relating to such Licensed Technology or Licensee Product IP, as applicable and the Licensed Products and Confidential Information, to any personnel (including sales teams) of such Acquisition Party (and its Affiliates), who are conducting any activities with respect to the applicable Competing Product (except to senior management or executive personnel in the course of carrying out their management or executive functions).

3.8 Non-Compete: Acquisition of a Third Party by a Party. If either Party or any of its Affiliates merges or consolidates with, or otherwise acquires a Third Party (whether such transaction occurs by way of a sale of assets, merger, consolidation or similar transaction) (an “Acquired Party”) that is engaged in Exploitation of a Competing Product as of the closing of such transaction that would be prohibited by Section 3.6(a) or Section 3.6(b), as applicable, and such merger, consolidation or acquisition does not result in a Change of Control of such Party, then the Acquired Party may continue the Exploitation of such Competing Product for a period not to exceed [***] following the closing of such transaction, and such Party shall not be deemed to be in breach of its obligations set forth in Section 3.6(a) or Section 3.6(b), as applicable, provided that (i) no later than the end of such [***] period, such Party or its Affiliate or its Acquired Party (A) Divests its interest in such Competing Product, or (B) terminates the Exploitation of such Competing Product; and, in either case promptly provides the other Party with written confirmation of such Divestiture or termination, and (ii) during such [***] period, such Party and the Acquired Party implement and enforce “firewall” procedures that would satisfy the requirements of Section 3.7, mutatis mutandis.

3.9 Non-Compete: Distinguishable Competing Product; Option Rights.

(a)
Distinguishable Competing Product. Notwithstanding anything to the contrary in Section 3.6(b), if Innovent or any of its Affiliates desires to clinically Develop and/or Commercialize any Competing Product that is a bispecific or multispecific antibody product Targeting CD40L within the Licensee Territory (“Distinguishable Competing Product”), Innovent or such Affiliate may conduct such activities without breaching Section 3.6(b), subject to the terms of this Section 3.9.
(b)
Grant of Options. If at any time during the period commencing on the Effective Date and continuing until the third (3rd) anniversary thereof (the “Initial Option Period”), Innovent or any of its Affiliates (i) initiates the development of a Distinguishable Competing Product and (ii) delivers to Licensee the NHP PD/Functional Data generated with respect to such Distinguishable Competing Product, Licensee shall have the option (the “Initial Option”) to obtain an exclusive license to Exploit such Distinguishable Competing Product in the Licensee Territory on the terms set forth in this Section 3.9(b); provided that, if Innovent or such Affiliate delivers to Licensee such NHP PD/Functional Data during the last [***] of the Initial Option Period, the Initial Option Period shall be extended until the date [***] after such delivery. Notwithstanding the foregoing, if, during the Initial Option Period, Innovent or any of its Affiliates initiates the development of a Distinguishable Competing Product but does not generate and deliver to Licensee the NHP PD/Functional Data with respect to such Distinguishable Competing Product, (i) the Initial Option Period with respect to such Distinguishable Competing Product shall automatically extend until the fifth (5th) anniversary of the Effective Date (the “Extended Option Period” and, together with the Initial Option Period, the “Option Period”) and (ii) Licensee shall

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have the option (the “Extended Option” and, together with the Initial Option, the “Option”) to obtain an exclusive license to Exploit such Distinguishable Competing Product in the Licensee Territory on the terms set forth in this Section 3.9(b); provided that if Innovent or such Affiliate delivers to Licensee such NHP PD/Functional Data during the last [***] of the Extended Option Period, the Extended Option Period shall be extended until the date [***] after such delivery.
(c)
Exercise of Option. Licensee may exercise an Option during the Option Period with respect to a Distinguishable Competing Product by providing written notice of exercise to Innovent within [***] from its receipt of the applicable NHP PD/Functional Data and paying Innovent the applicable Option Exercise Fee. If Licensee (i) fails to exercise any Option within such [***] period or (ii) at any time prior to the expiration of such [***] period, Licensee declines in writing to exercise any Option, then, (A) the Option shall expire with respect to the applicable Distinguishable Competing Product, and (B) the restrictions on Innovent under Section 3.6(b) with respect to the applicable Distinguishable Competing Product shall automatically terminate. For clarity, the Option and the restrictions in Section 3.6(b) shall apply only to the applicable Distinguishable Competing Product and shall not apply to or affect any other Distinguishable Competing Products.
(d)
Early Exercise. If at any time during the Initial Option Period, Innovent or any of its Affiliates (i) initiates the development of a Distinguishable Competing Product and (ii) does not provide any NHP PD/Functional Data generated with respect to such Distinguishable Competing Product to Licensee but generates in vivo data for such Distinguishable Competing Product during the Non-Compete Period, Licensee may exercise the Option with respect to such Distinguishable Competing Product at any time during the Extended Option Period but prior to receipt of NHP PD/Functional Data.
(e)
Option Exercise Payment. Licensee shall pay to Innovent a one-time, non-refundable upfront payment in the amount of [***] Dollars ($[***]) (the “Option Exercise Fee”) within [***] of Licensee’s exercise of the Option for any Distinguishable Competing Product.
(f)
Licensed Rights to Distinguishable Competing Product. Upon Licensee’s exercise of the Option for a Distinguishable Competing Product as set forth in Section 3.9(c) and the payment by Licensee of the corresponding Option Exercise Fee as set forth in Section 3.9(e), (i) such Distinguishable Competing Product will automatically constitute a Licensed Product for purposes of this Agreement, (ii) Licensee’s rights to Exploit such Distinguishable Competing Product shall be included in the license granted to Licensee under Section 3.1 and (iii) Licensee shall have the right to Exploit such Distinguishable Competing Product as a Licensed Product subject to the terms of this Agreement.

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3.10 Future Upstream License Agreements.

(a)
If Innovent determines, after the Effective Date, that it desires to obtain a license or other rights to any Patent or Know-How of a Third Party that, but for application of this Section 3.10, would be Licensed Technology if it applied to the Licensee Territory, excluding non-exclusive license agreements for licenses of a scope of use within the scope of the license set forth in Section 3.2(b), then Innovent will promptly notify Licensee in writing of such Patent or Know-How (as applicable) of such Third Party. Innovent will not negotiate or obtain any such license or other rights under such Patent or Know-How within the Licensee Territory without Licensee’s prior written consent. Subject to the foregoing, Innovent acknowledges and agrees that if Licensee provides such consent and Innovent obtains a license or other rights to any Patent or Know-How of a Third Party that, but for application of this Section 3.10, would be Licensed Technology then (i) such licenses under Section 3.1 shall be subject and subordinate to all applicable provisions of such upstream license agreements and Licensee shall be responsible for paying to Innovent any royalty, milestone and other license fee amounts thereunder that are reasonably attributable to Licensee’s sublicense thereunder; provided that, Licensee may elect not to receive a sublicense under any such Patent or Know-How and if Licensee makes such election, such Patent or Know-How shall not be sublicensed to Licensee under Section 3.1 unless and until Licensee has agreed to the foregoing obligations and (ii) if the Patents licensed by Innovent from such Third Party Cover the composition of matter or method of use (excluding manufacturing processes, biomarker methods and delivery devices) of the Licensed Compound or Licensed Product(s), then the Innovent’s license agreement with such Third Party will be deemed a Third Party License, and, subject to Section 10.6(c)(v), the applicable portion of any payments due and payable by Licensee to Innovent to such Third Party License shall be creditable against the Royalty Payments payable to Innovent with respect to the applicable Licensed Product(s) during the Royalty Term for such Licensed Product(s) pursuant to Section 10.6(c)(ii).
(b)
Except as provided in Section 3.10(a), as between the Parties, only Licensee will have the right to negotiate and obtain the license to the foregoing noticed Patent(s) and/or Know-How within the Licensee Territory, in which case if the Patents licensed by Licensee from such Third Party Cover the composition of matter or method of use (excluding manufacturing processes, biomarker methods and delivery devices) of the Licensed Compound or Licensed Product(s), then the Licensee’s license agreement with such Third Party will be deemed a Third Party License, and, subject to Section 10.6(c)(v), the applicable portion of any payments due and payable by Licensee pursuant to such Third Party License shall be creditable against the Royalty Payments payable to Innovent with respect to the applicable Licensed Product(s) during the Royalty Term for such Licensed Product(s) pursuant to Section 10.6(c)(ii).

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ARTICLE 4

REGULATORY AND TECHNOLOGY TRANSFER

4.1 Regulatory and Technology Transfer. The JSC shall coordinate the conduct of the Regulatory and Technology Transfer described in this Article 4.

(a)
Transfer Obligations. Innovent shall, in compliance with Applicable Laws, transfer and assign to Licensee (or its designee) any and all Regulatory Submissions for or in respect of any Licensed Product Controlled by Innovent or any of its Affiliates in the Licensee Territory in their original language, including all INDs for the Licensed Products, and provide to Licensee (i) one copy of any and all Regulatory Submissions for or in respect of any Licensed Product Controlled by Innovent or any of its Affiliates in the Innovent Territory in their original language, including all INDs for the Licensed Products, and (ii) one copy of any other Know-How Controlled by Innovent that is necessary or reasonably useful for the Development or Commercialization of the Licensed Compounds and/or Licensed Products in the Licensee Territory other than the Excluded Innovent Know-How and any such Know-How that is included as part of the Innovent Manufacturing Technology (such transfer, the “Regulatory and Technology Transfer”) in accordance with a written plan for such Regulatory and Technology Transfer activities mutually agreed by the Parties (each, a “Regulatory and Technology Transfer Plan”). Licensee shall reimburse Innovent for its (i) Out-of-Pocket Costs and (ii) FTE Costs for any FTEs used to conduct Regulatory and Technology Transfer activities in excess of the Included FTEs, in each case ((i) and (ii)), incurred in the performance of such Regulatory and Technology Transfer activities. Innovent will invoice Licensee for such Out-of-Pocket Costs and FTE Costs following each Calendar Quarter in which such FTE Costs and Out-of-Pocket Costs are incurred.
(b)
Purchase of Cell Culture Media. Notwithstanding anything to the contrary herein, Innovent shall not be required to transfer or otherwise disclose the formulation of its proprietary Cell Culture Media to Licensee or any of its designees. Upon Licensee’s written request, Innovent shall, within [***] from the date of its receipt of such request, provide a letter of authorization to the CMO engaged by Innovent to manufacture the Cell Culture Media allowing Licensee to purchase the Cell Culture Media directly from such CMO on the terms and subject to the conditions provided to Licensee by such CMO.

4.2 Technical Support. Promptly following the Effective Date, Innovent shall provide the Regulatory and Technology Transfer pursuant to Section 4.1(a) and, during the first [***] after the Effective Date, Innovent shall make available to Licensee Innovent’s and its Affiliates’ applicable personnel on a reasonable basis to answer questions and provide technical support with respect to any Regulatory Submissions and Know-How transferred to Licensee pursuant to Section 4.1(a) as requested in writing by Licensee (such support, the “Technical Support”). Licensee shall reimburse Innovent for its (a) Out-of-Pocket Costs and (b) FTE Costs for any FTEs used to conduct Technical Support in excess of the Included FTEs, in each case ((a) and (b)), incurred in the performance of such Technical Support. Innovent will invoice Licensee for such Out-of-Pocket Costs and FTE Costs following each Calendar Quarter in which such FTE Costs and Out-of-Pocket Costs are incurred. For clarity, if any Regulatory and Technology Transfer requires the translation of Regulatory Submissions into English as requested by Licensee, Licensee may engage a Third Party to perform such translations, and such translations shall be at Licensee’s cost and expense. Alternatively, Licensee may elect on a case-by-case basis to have Innovent perform such

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translations, in which case Licensee shall pay Innovent the FTE Costs for any FTEs used to perform such translations in excess of the Included FTEs; provided that the Parties anticipate that Licensee will generally elect to have Third Parties perform such translations.

ARTICLE 5

DEVELOPMENT

5.1 Responsibilities. As between the Parties, Licensee shall (itself or through its Affiliates or Sublicensees) have the sole right and responsibility, at its sole cost and expense, to conduct all Development of Licensed Products in the Field in the Licensee Territory, except for any non-clinical Development activities conducted by Innovent as expressly provided in Section 3.2(b).

5.2 Diligence.

(a)
Licensee shall (itself or through its Affiliates or Sublicensees) use Commercially Reasonable Efforts to Develop and seek Regulatory Approval of at least one (1) Licensed Product for at least two (2) of the Major Markets (including the United States) in at least one (1) Indication.
(b)
Licensee shall file an IND for a Licensed Product in the United States within twelve (12) months after the Effective Date; provided that, such twelve (12)-month period shall be extended by any delay that is a Justified Delay.
(c)
Licensee’s breach of this Section 5.2 shall be deemed a material breach of this Agreement subject to Licensee’s right to dispute and cure such material breach pursuant to Section 15.4.

5.3 Development Plan. Each Party shall provide the JSC with non-binding, high-level written development plans that includes its anticipated timeline and budget for material Development work (including all Clinical Trials) to be conducted by or on behalf of the applicable Party, its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) in order to obtain Regulatory Approval of the Licensed Product in its territory (each, a “Development Plan”). Exhibit 5.3 (the “Licensee Development Plan”) sets forth the initial Development Plan for Licensee. Innovent shall provide the JSC with its Development Plan promptly after Innovent has prepared such Development Plan and in any case within [***] after the Effective Date. From time to time during the Term, but not less than [***], each Party will provide the JSC, for its review, with any amendment to its Development Plan.

5.4 Development Reports. Each Party will keep the JSC reasonably informed of the status, progress and results of its Development and regulatory activities with respect to Licensed Compounds and Licensed Products and will update the JSC regarding such status, progress and results not less than [***], including with regard to any Clinical Trial designs, clinical data, Adverse Events, and regulatory communications with Regulatory Authorities with respect to Licensed Products. All updates and reports provided by a Party pursuant to this Section 5.4 will be the Confidential Information of such Party.

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5.5 Records. Each Party shall, and shall cause its Affiliates to, and shall require its Sublicensees (or, with respect to Innovent, (sub)licensees) or subcontractors to, maintain complete, current and accurate records in either tangible or electronic form of all material Development activities with respect to the Licensed Products, in each case in accordance with such Person’s reasonable internal documentation and record retention practices. Such records will be maintained in sufficient detail to properly reflect, in good scientific manner, all material work done, and the results of studies and Clinical Trials undertaken and, further, will be at a level of detail appropriate for Patent and regulatory purposes. In addition, such Party will document all non-clinical studies and Clinical Trials of Licensed Products in formal written study reports according to Applicable Laws and applicable national and international guidelines. Upon the written request of either Party, the Parties shall discuss in good faith and may agree on the reasonable scope of records, reports, information and Data to be provided by one Party to the other Party for the other Party’s use for the Development, Manufacture, and Commercialization of the Licensed Products in such other Party’s territory, in each case in accordance with the terms of this Agreement. All records, reports, information and Data provided by a Party pursuant to this Section 5.5 shall be deemed the Confidential Information of such Party.

5.6 Data Exchange and Use. Each Party shall, at its own cost and expense, promptly provide the other Party with copies of all Data (including all Clinical Trial data and supporting documentation, e.g., protocols and case report forms) generated from its Development of the Licensed Compounds and Licensed Products, and shall take all necessary steps, including with respect to any informed consent forms and Regulatory Approvals, that may be reasonably required to ensure that such Data can be delivered to the other Party in compliance with Applicable Laws. For clarity, any such Data will be owned by each Party in accordance with Section 14.1 and shall be subject to the licenses, rights and obligations set forth herein.

ARTICLE 6

COMBINATION CLINICAL TRIALS

6.1 Innovent Combination Clinical Trial.

(a)
Innovent shall not conduct any Clinical Trial for the Development of the concomitant or subsequent administration of one or more compounds or products, including Innovent Product(s), in a combination therapy with a Licensed Compound (each, an “Innovent Combination Therapy”) in the Licensee Territory without the prior written consent of Licensee, which consent will not be unreasonably withheld, conditioned or delayed (any such Clinical Trial, an “Innovent Combination Clinical Trial”).
(b)
If Innovent proposes to conduct an Innovent Combination Clinical Trial in the Licensee Territory, Innovent shall provide Licensee with a written notice of such proposal. Following any such notice, the Parties shall discuss in good faith the parameters of Innovent’s desired Innovent Combination Clinical Trial and the terms and conditions, if any, under which Licensee would consent to the conduct thereof.
(c)
Following Regulatory Approval of an Innovent Combination Therapy, Innovent may Commercialize the Innovent Product included in such Innovent Combination Therapy in the Licensee Territory; provided that, for clarity, Innovent shall not have the right to

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Commercialize in the Licensee Territory the Licensed Compound or Licensed Product that is included as part of such Innovent Combination Therapy.

6.2 Licensee Combination Clinical Trial.

(a)
Licensee shall not conduct any Clinical Trial for the Development of the concomitant or subsequent administration of one or more compounds or products in a combination therapy with a Licensed Compound (each, a “Licensee Combination Therapy”) in the Innovent Territory without the prior written consent of Innovent, which consent will not be unreasonably withheld, conditioned or delayed (any such Clinical Trial, a “Licensee Combination Clinical Trial”).
(b)
If Licensee proposes to conduct a Licensee Combination Clinical Trial in the Innovent Territory, Licensee shall provide Innovent with a written notice of such proposal. Following any such notice, the Parties shall discuss in good faith the parameters of Licensee’s desired Licensee Combination Clinical Trial and terms and conditions, if any, under which Innovent would consent to the conduct thereof.
(c)
Following Regulatory Approval of a Licensee Combination Therapy, Licensee may Commercialize the product(s) other than the Licensed Product included in such Licensee Combination Therapy in the Innovent Territory; provided that, for clarity, Licensee shall not have the right to Commercialize in the Innovent Territory the Licensed Compound or Licensed Product that is included as part of such Licensee Combination Therapy.

6.3 Combination Clinical Trial Data. Each Party shall share with the other Party any safety data generated by or on behalf of such Party in connection with the conduct of (a) with respect to Innovent, Innovent Combination Clinical Trials or (b) with respect to Licensee, Licensee Combination Clinical Trials, as applicable, in each case to the extent reasonably necessary for patient safety, pharmacovigilance, or compliance with Applicable Laws. Except for such safety data, neither Party shall be obligated under this Agreement to disclose, provide, or grant access to any other data, results, Know-How or other information arising from any such Innovent Combination Clinical Trials (with respect to Innovent) or Licensee Combination Clinical Trials (with respect to Licensee), as applicable.

ARTICLE 7

REGULATORY

7.1 Licensee Territory. Subject to Innovent’s rights under Section 3.2, Licensee shall (itself or through its Affiliates or Sublicensees) have the sole right and responsibility, at its sole cost and expense, to (a) conduct all regulatory activities leading up to and including the obtaining of all Regulatory Approvals for Licensed Products from the applicable Regulatory Authorities on a country-by-country basis in the Licensee Territory and (b) prepare, file for, obtain, hold, and maintain all INDs and Regulatory Approvals and, as applicable, associated pricing and reimbursement approvals for Licensed Products on a country-by-country basis in the Licensee Territory. Licensee will keep Innovent reasonably informed of material regulatory developments related to any Licensed Product in the Licensee Territory, including with respect to material decisions of any Regulatory Authority in the Licensee Territory regarding any Licensed Product.

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7.2 Innovent Territory. Subject to Licensee’s rights under Section 3.1(b), Innovent shall (itself or through its Affiliates or (sub)licensees) have the sole right, at its sole cost and expense, to (a) conduct all regulatory activities leading up to and including the obtaining of all Regulatory Approvals for Licensed Products from the applicable Regulatory Authorities on a region-by-region basis in the Innovent Territory, and (b) prepare, file for, obtain, hold and maintain all INDs and Regulatory Approvals and, as applicable, all associated pricing and reimbursement approvals for Licensed Products on a region-by-region basis in the Innovent Territory. Innovent will keep Licensee reasonably informed of material regulatory developments related to any Licensed Product in the Innovent Territory, including with respect to material decisions of any Regulatory Authority in the Innovent Territory regarding any Licensed Product.

7.3 Provision of Regulatory Submissions. Each Party will promptly notify the other Party in writing of any material Regulatory Submission or any material comment or material correspondence for any Licensed Product submitted to or received from any Regulatory Authority in its respective territory and will provide the other Party with copies thereof as soon as reasonably practicable.

7.4 Notice of Meetings and Regulatory Actions. Each Party will provide the other Party with written notice of any material meeting or discussion with any Regulatory Authority in such Party’s territory related to any Licensed Product as promptly as possible and no later than [***] after receiving notice thereof. At the notifying Party’s request, subject to Section 7.5, the other Party will reasonably cooperate with the notifying Party in preparing for any such meeting or discussion. If any Regulatory Authority takes, or gives notice of its intent to take, any regulatory action with respect to any Licensed Product, then such Party will notify the other Party of such actual or proposed action within [***] after receipt of such notice (or, if action is taken without notice, within [***] of such Party becoming aware of such action).

7.5 Cooperation. Each Party will reasonably cooperate with the other Party in obtaining any Regulatory Approvals for the Licensed Products in the other Party’s territory; provided that, to the extent that Licensee provides a written request to Innovent to provide Licensee Regulatory Assistance pursuant to this Section 7.5 (“Regulatory Assistance”), Innovent will use Commercially Reasonable Efforts to provide such Regulatory Assistance. Licensee shall reimburse Innovent for its (i) Out-of-Pocket Costs and (ii) FTE Costs for any FTEs used to conduct Regulatory Assistance in excess of the Included FTEs, in each case ((i) and (ii)), incurred in the performance of such Regulatory Assistance. Innovent will invoice Licensee for such Out-of-Pocket Costs and FTE Costs following each Calendar Quarter in which such FTE Costs and Out-of-Pocket Costs are incurred.

7.6 No Harmful Actions. If either Party reasonably believes that the other Party is taking or intends to take any action with respect to a Licensed Product that is reasonably likely to have a material adverse impact upon the regulatory status of such Licensed Product within such Party’s territory, then such Party will have the right to bring the matter to the attention of the JSC for good faith discussion.

7.7 Notification of Threatened Action. Each Party will, within [***], notify the other Party in writing of any information it receives regarding any threatened or pending action, inspection or communication by any Third Party that would reasonably be expected to affect the

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safety or efficacy claims with respect to any Licensed Products or the continued marketing of any Licensed Products. Upon receipt of such notice, the Parties will promptly consult with each other in an effort to arrive at a mutually acceptable and appropriate action to take in order to address such matter.

7.8 Rights of Reference.

(a)
By Licensee. Licensee (on behalf of itself and its Affiliates) hereby grants to Innovent, free of charge, a fully-paid up, royalty-free right of reference to all Regulatory Submissions pertaining to the Licensed Products submitted to any Regulatory Authority by or on behalf of Licensee or its Affiliates or Sublicensees (and all Data contained or referenced therein), with the right to grant further rights of reference to Innovent’s Affiliates or (sub)licensees with respect to such Licensed Products. Innovent and its Affiliates (and any (sub)licensee to whom it grants a further right of reference) may use this right of reference to such Regulatory Submissions solely for the purpose of seeking, obtaining and maintaining Regulatory Approvals of (i) such Licensed Products in the Innovent Territory or (ii) an Innovent Combination Therapy containing such Licensed Product(s). At Innovent’s written request, Licensee shall promptly provide Innovent with copies of material Regulatory Submissions (including Data contained or referenced therein to the extent not previously provided to Innovent) subject to this right of reference.
(b)
By Innovent. Innovent (on behalf of itself and its Affiliates) hereby grants to Licensee, free of charge, a fully-paid up, royalty-free, right of reference to all Regulatory Submissions pertaining to the Licensed Products submitted to any Regulatory Authority by or on behalf of Innovent or its Affiliates or (sub)licensees (and all Data contained or referenced therein), with the right to grant further rights of reference to Licensee’s Affiliates or Sublicensees. Licensee and its Affiliates (and any Sublicensee to whom it may grant a further right of reference) may use this right of reference to Innovent’s Regulatory Submissions in the Field solely for the purpose of seeking, obtaining and maintaining Regulatory Approvals of (i) the Licensed Products in Field in the Licensee Territory or (ii) a Licensee Combination Therapy containing such Licensed Products. At Licensee’s written request, Innovent shall promptly provide Licensee with copies of material Regulatory Submissions (including Data contained or referenced therein to the extent not previously provided to Licensee) subject to this right of reference.

7.9 Adverse Events Reporting.

(a)
Pharmacovigilance Agreement. No later than the date of the first IND submission for the first Licensed Product, Licensee and Innovent will negotiate and execute an agreement with respect to the worldwide safety and pharmacovigilance procedures to be used by the Parties with respect to the Licensed Products, such as safety data sharing and exchange, Adverse Events reporting and prescription events monitoring (as amended, the “Pharmacovigilance Agreement”). Such Pharmacovigilance Agreement will describe the coordination of collection, investigation, reporting, and exchange of information concerning Adverse Events or any other significant safety issue and product quality and product complaints involving Adverse Events in each case, with respect to Licensed Products sufficient to permit each Party, its Affiliates, and its Sublicensees (or, with respect to Innovent, (sub)licensees) to comply with Applicable Laws. The Pharmacovigilance Agreement will be promptly updated if required by changes in Applicable Laws. Each Party hereby agrees to comply with its respective obligations

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under the Pharmacovigilance Agreement and to cause its Affiliates, Sublicensees (or, with respect to Innovent, (sub)licensees) to comply with such obligations.
(b)
Adverse Events. Each Party will be responsible for complying with all Applicable Laws governing Adverse Events for all Clinical Trials of any Licensed Product performed by or on behalf of such Party.
(c)
Global Safety Database. Licensee will hold and control the global safety database for each Licensed Product in accordance with the terms of the Pharmacovigilance Agreement. Each Party will provide the other Party with any information of which such Party becomes aware concerning any Adverse Event experienced by a subject or patient being administered the applicable Licensed Product, including any such information received by either Party from any Third Party (subject to receipt of any required consents from such Third Party). It is understood that each Party and its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) has the right to disclose such information if disclosure is reasonably necessary to comply with Applicable Laws or the requirements of any applicable Regulatory Authority. Notwithstanding the foregoing, Innovent may hold and control a safety database for each Licensed Product in the Innovent Territory at Innovent’s sole cost. Innovent will be responsible for providing information from the Innovent Territory for inclusion in the global safety database, and Licensee will be responsible for providing information from the Licensee Territory for inclusion in the global safety database.

7.10 Remedial Actions. Each Party and its Affiliates will (and will use reasonable efforts to cause its Sublicensees (or (sub)licensees in the case of Innovent) to) inform the other Party immediately (and promptly confirm such communication by written notice) if such Party or its Affiliate or Sublicensee (or (sub)licensee, as applicable) obtains information indicating that any Licensed Product may be subject to any recall, recovery, corrective action or other regulatory action by any Governmental Authority (a “Remedial Action”). The Parties will assist each other in gathering and evaluating such information as is reasonably necessary to determine the necessity of conducting a Remedial Action with respect to a Licensed Product in the Licensee Territory or Innovent Territory, as applicable. Each Party shall have sole discretion with respect to any matter relating to any Remedial Action for any Licensed Product in its territory. In the event that a Party determines that any Remedial Action with respect to any Licensed Product in its territory should be commenced or is required by any Regulatory Authority having jurisdiction over the matter, such Party will control and coordinate all efforts necessary to conduct such Remedial Action in its territory and shall be responsible for the cost and expense of such Remedial Action.

7.11 Safety and Regulatory Audits. Each Party will notify the other Party with respect to any inspection of such Party or its Affiliates or Sublicensees (or, with respect to Innovent, (sub)licensees) (including Clinical Trial sites) by any Governmental Authority directed to any Licensed Product (a) no later than [***] after such Party receives notice of such inspection or (b) within [***] after the completion of any such inspection that is conducted by any Governmental Authority without prior notice. To the extent required by Applicable Laws, each Party will permit Governmental Authorities outside of its territory to conduct inspections of such Party or its Affiliates or Sublicensees (or, with respect to Innovent, (sub)licensees) (including Clinical Trial sites) relating to any Licensed Product, and will ensure that all such Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) permit such inspections. Following any such

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regulatory inspection related to any Licensed Product that is reasonably expected to have a material impact on the Development or Commercialization of such Licensed Product in the other Party’s territory, each Party will provide the other Party with an unredacted copy of any finding, notice, or report provided by any Governmental Authority in connection with such inspection (or any portion of such inspection that is related to such Licensed Product) within [***] of such Party receiving the same.

ARTICLE 8

MANUFACTURING AND SUPPLY

8.1 Clinical and Commercial Supply.

(a)
Responsibility. Subject to the remainder of this Section 8.1, Licensee shall be responsible (itself or through its Affiliate, Sublicensees or CMO) for Manufacturing and supplying Licensed Products for Development (including use in Clinical Trials) and Commercialization by Licensee and its Affiliates and Sublicensees in the Licensee Territory, and for non-clinical Development by Licensee and its Affiliates and Sublicensees in the Innovent Territory.
(b)
Supply by Innovent.
(i)
Supply Agreement. Within [***] of the Effective Date (or such longer period as may be mutually agreed upon by the Parties), the Parties will negotiate in good faith and enter into a clinical supply agreement for the Manufacture and clinical supply of Licensed Compounds and Licensed Products by Innovent (itself or through its Affiliate, its (sub)licensees or CMO) to Licensee and its Affiliates or Sublicensees for Development use in the Licensee Territory on commercially reasonable terms (as may be amended in accordance with its terms, the “Supply Agreement”). The Supply Agreement will include terms consistent with the principles set forth on Exhibit 8.1(b) (“Supply Agreement Material Terms”) and other customary terms for the supply of pharmaceutical products for Development use. In connection with the Supply Agreement, the Parties shall enter into a quality agreement (the “Quality Agreement”) governing the quality aspects of the supply of Licensed Products.
(ii)
Initial Supply by Innovent. Notwithstanding that the Supply Agreement has not yet been executed, at Licensee’s reasonable request, Innovent will supply Licensee with all of Licensee’s requirements for the preclinical and clinical Development of the Licensed Compounds and Licensed Products set forth on Exhibit 8.1(b) under the heading “Initial Supply” pursuant to the Supply Agreement Material Terms.
(c)
Manufacturing Technology Transfer to Licensee. Upon Licensee’s written request following the Effective Date, including for purposes of engaging an alternative CMO (but subject to Section 8.1(d)), the Parties will prepare a mutually agreed plan pursuant to which Innovent will (subject to Section 4.1(b)) perform a one-time technology transfer with respect to the then-current Innovent Manufacturing Technology (the “Manufacturing Technology Transfer Plan”) to enable Licensee or its Affiliate or any Sublicensee or CMO designated by Licensee or its Affiliate or Sublicensee to Manufacture the Licensed Products for Development and Commercialization purposes. The Manufacturing Technology Transfer Plan will

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describe the Innovent Manufacturing Technology to be transferred, including the anticipated timelines for completing such transfers. Subject to the terms of the Manufacturing Technology Transfer Plan, Innovent will use Commercially Reasonable Efforts to (i) transfer all Innovent Manufacturing Technology specified in the Manufacturing Technology Transfer Plan to Licensee or its Affiliate, Sublicensee or CMO, as applicable, and (ii) provide reasonable technical support and assistance to Licensee or such Affiliate, Sublicensee or CMO with respect to the implementation of the Manufacturing process for the Licensed Products for up to [***] following completion of such transfer (“Manufacturing Support”) (clause (i) and (ii), the “Manufacturing Technology Transfer”); provided that Licensee shall pay Innovent the FTE Costs (calculated at Innovent’s FTE Rates) and any Out-of-Pocket Costs incurred by Innovent in providing any Manufacturing Support requested by Licensee, to the extent such FTE Costs are in excess of the Included FTEs. Innovent will invoice Licensee for such FTE Costs and Out-of-Pocket Costs following each Calendar Quarter in which such FTE Costs and Out-of-Pocket Costs have been incurred.
(d)
Innovent Cell Line Agreement. The Parties acknowledge and agree that the Innovent Manufacturing Technology includes certain Patents and Know-How Controlled by Innovent pursuant to the Existing Upstream License Agreement. If Licensee practices such Patents and Know-How in connection with the Manufacture of any Licensed Product by or on behalf of Licensee (or its Affiliates or Sublicensees) pursuant to Section 3.1, then Licensee shall be responsible for all royalties owed by Innovent to [***] on Net Sales (as defined in the Existing Upstream License Agreement) of such Licensed Product by Licensee or its Affiliates or Sublicensees, which royalties will constitute [***] percent ([***]%) of such Net Sales if such Licensed Product is manufactured by [***] or any of its Affiliates, [***] percent ([***]%) of such Net Sales if such Licensed Product is manufactured by Innovent or any of its Affiliates or Strategic Partners (as defined in the Existing Upstream License Agreement), or [***] percent ([***]%) of such Net Sales if such Licensed Product is manufactured by a CMO other than [***]o r any of its Affiliates or Innovent or any of its Affiliates or Strategic Partners (as defined in the Existing Upstream License Agreement). In accordance with Section [***] of the Existing Upstream License Agreement, such royalty payments shall be reduced on a country-by-country basis by [***] percent ([***]%) following expiration of applicable [***] Patents. In addition, if Licensee practices such Patents and Know-How in connection with the Manufacture of any Licensed Product and Licensee or any of its Affiliates obtains any supply of any Licensed Product from a CMO other than [***] or any of its Affiliates or Innovent or any of its Affiliates or Strategic Partners (as defined in the Existing Upstream License Agreement), then Licensee shall be obligated to pay directly to [***] an annual fee of [***] dollars ($[***]) or, if Innovent or any of its Affiliates or (sub)licensees also obtains supply of such Licensed Product from a CMO other than [***] or any of its Affiliates or Innovent or any of its Affiliates or Strategic Partners (as defined in the Existing Upstream License Agreement), a pro rata portion of such annual fee) as set forth in the Existing Upstream License Agreement. Innovent shall not, and shall cause its Affiliates not to, modify or amend the terms of the Existing Upstream License Agreement in any manner that would reduce Licensee’s rights under the Innovent Manufacturing Technology or increase Licensee’s payment obligations under this Section 8.1(d).

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(e)
Right of First Negotiation to be Secondary Manufacturer of Licensee. Licensee hereby grants to Innovent (on behalf of its Affiliate [***]) a right of first negotiation to be a secondary manufacturer (“Secondary Manufacturer”) of Licensed Compound and Licensed Product for Development and for Commercialization purposes in the Licensee Territory as set forth below in this Section 8.1(e). If, at any time during the Term, Licensee wishes to enter into an engagement with a CMO (other than the CMO at whose facility the Manufacturing Technology Transfer was implemented under Section 8.1(d)) for the Manufacture and supply of drug substance for the Licensed Compounds and Licensed Products for clinical Development or Commercialization use, then prior to entering into any binding agreement with such CMO (i) Licensee shall notify Innovent in writing and (ii) Licensee shall negotiate in good faith with Innovent for up to [***] (the “Negotiation Period”) the terms and conditions of a definitive agreement under which Innovent’s Affiliate [***] would become Licensee’s Secondary Manufacturer for the drug substance for the Licensed Compounds and Licensed Products. If the Parties are unable to agree on the terms of such definitive agreement within the Negotiation Period, then Licensee may execute agreements with any CMO for the Manufacture and supply of drug substance for the Licensed Compounds and Licensed Products for clinical Development or Commercialization use. Notwithstanding the foregoing, the right of negotiation granted under this Section 8.1(e) applies solely to Licensee and shall not apply to any Sublicensee or acquirer of Licensee; provided that, upon Innovent’s request, each such Sublicensee or acquirer will, if such entity wishes to enter into a new Manufacturing and supply arrangement with a Third Party CMO, engage in a good-faith discussion with [***] regarding the potential engagement of [***] to Manufacture and supply drug substance for the Licensed Compounds and Licensed Products for Development and Commercialization purposes in the Licensee Territory.
(f)
Stability Testing Program. As further set forth in the Quality Agreement, Innovent shall maintain stability testing programs and conduct all required stability studies (including those arising from process or formulation changes) in accordance with cGMP.

ARTICLE 9

COMMERCIALIZATION; MEDICAL AFFAIRS

9.1 Responsibilities. Licensee (itself or through its Affiliates or Sublicensees) will have the sole right and responsibility for the Commercialization of Licensed Products in the Field in the Licensee Territory, at its sole cost and expense. Innovent (itself or through its Affiliates or (sub)licensees) will have the sole right and responsibility for the Commercialization of Licensed Products in the Field in the Innovent Territory, at its sole cost and expense.

9.2 Commercialization Diligence. Licensee shall (itself or through its Affiliates or Sublicensees) use Commercially Reasonable Efforts to Commercialize at least one (1) Licensed Product in at least one (1) Indication in at least two (2) of the Major Markets (including the United States) in which Regulatory Approval for such Licensed Product was obtained.

9.3 Commercialization Plan. No later than [***] before the anticipated date of the submission of the first MAA for the Licensed Product in the Licensee Territory, Licensee shall submit to the JSC (or a joint Commercialization subcommittee established by the JSC), for its review and discussion, a written Commercialization plan that sets forth the high-level timeline and high-level summary of the major Commercialization activities planned for the Licensed Product

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in Licensee Territory for the [***] period beginning on the date of submission of such MAA (the “Commercialization Plan”). Thereafter, from time to time, but no less than [***], Licensee will provide the JSC, for its review, with any material updates or amendments to the Commercialization Plan. Notwithstanding the foregoing, in the event Licensee grants a sublicense or undergoes a Change of Control, neither Licensee nor any Sublicensee or acquirer of Licensee shall thereafter have any obligation under this Section 9.3 to provide any Commercialization Plan to the JSC or Innovent.

9.4 Commercialization Reports. During the Term, Licensee will keep the JSC reasonably informed of its and its Affiliates’ Commercialization activities with respect to the Licensed Product in the Licensee Territory. Licensee will, from time to time no less than [***], provide the JSC with a high-level summary of its and its Affiliates significant Commercialization activities. Notwithstanding the foregoing, in the event Licensee grants a sublicense or undergoes a Change of Control, neither Licensee nor any Sublicensee or acquirer of Licensee shall thereafter have any obligation under this Section 9.4 to inform or update either the JSC or Innovent regarding its or its Affiliates Commercialization activities with respect to the Licensed Product.

9.5 Records. Licensee shall, and shall cause its Affiliates to, and shall require its Sublicensees or subcontractors to, maintain complete, current and accurate records in either tangible or electronic form of all material Commercialization activities with respect to the Licensed Products, in each case in accordance with its reasonable internal documentation and record retention practices.

9.6 Product Trademarks.

(a)
Licensee will have the right to brand the Licensed Products in the Licensee Territory using trademarks, logos and trade names that it determines appropriate for the Licensed Products (such Licensed Product-specific trademarks, logos, and trade names, the “Licensee Product Marks”; provided that Licensee Product Marks shall not include any company names or logos of Innovent or its Affiliates, the use of which is addressed in Section 11.4). Licensee may not use any trademark Controlled by Innovent or its Affiliates (including their corporate names) to brand the Licensed Products without Innovent’s prior written consent. Licensee shall ensure that no Licensee Product Mark is confusingly similar to any Innovent Product Mark or any company name or logo of Innovent or any of its Affiliates or (sub)licensees. Licensee will own all rights in the Licensee Product Marks in the Licensee Territory and shall have the sole right to register and maintain the Licensee Product Marks in the Licensee Territory.
(b)
Innovent will have the right to brand the Licensed Products in the Innovent Territory using trademarks, logos and trade names that it determines appropriate for the Licensed Products (such Licensed Product-specific trademarks, logos, and trade names, the “Innovent Product Marks”; provided that Innovent Product Marks shall not include any company names or logos of Licensee or any of its Affiliates or Sublicensees, the use of which is addressed in Section 11.4). Innovent shall ensure that no Innovent Product Mark is confusingly similar to any Licensee Product Mark or any company name or logo of Licensee or any of its Affiliates or Sublicensees. Innovent will own all rights in the Innovent Product Marks in the Innovent Territory and shall have the right to register and maintain the Innovent Product Marks in the Innovent Territory.

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(c)
To the extent requested by a Party and commercially practicable, the Parties will cooperate in discussing, developing and implementing a global branding strategy for the Licensed Products. If the Parties do not agree upon a global branding strategy for a Licensed Product, each Party will have the right in its sole discretion to brand such Licensed Product in its territory in any manner that it determines appropriate (subject in all cases to Section 9.6(a) and Section 9.6(b)). Upon the reasonable written request of a Party, the other Party shall provide any information related to, for Licensee, the Licensee Product Marks and, for Innovent, the Innovent Product Marks, to the requesting Party to the extent reasonably necessary for the requesting Party to exercise its right and perform its obligations as contemplated under this Agreement.

9.7 No Diversion. Each of Innovent and Licensee hereby covenants and agrees that (a) it will not, and will ensure that its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) will not, directly or indirectly, promote, market, distribute, import, sell or have sold any Licensed Product, including via internet or mail order, outside its respective territory; (b) it will not, and will ensure that its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) will not: (i) unless otherwise agreed by the Parties in writing, establish or maintain any branch, warehouse or distribution facility for any Licensed Products in any country or region outside its territory, (ii) engage in any advertising or promotional activities relating to any Licensed Products that are directed primarily to customers or other purchaser or users of any Licensed Products located in any country or region outside its territory, (iii) solicit orders for any Licensed Products from any prospective purchaser located in any country or region outside its territory, or (iv) sell or distribute any Licensed Products to any Person in such Party’s territory who, to such Party’s knowledge, intends to sell or has in the past sold any Licensed Products in any country or region outside its territory; (c) if such Party or any of its Affiliates or Sublicensees (or, with respect to Innovent, (sub)licensees) receives any order for any Licensed Products from a prospective purchaser reasonably believed to be located in a region or country outside its territory, then such Party will, and will ensure that its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) will, not accept such order and will promptly refer that order to the other Party; (d) it will not, and will ensure that its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) will not, deliver or tender (or cause to be delivered or tendered) any Licensed Products into a country or region outside its territory; and (e) it will not, and will ensure that its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) will not, knowingly restrict or impede in any manner the other Party’s exercise of its exclusive rights to Commercialize any Licensed Products in such other Party’s territory; provided that the foregoing shall not restrict either Party’s Development or Manufacturing (including packaging and labeling) rights with respect to Licensed Products under this Agreement.

9.8 Medical Affairs. Each Party will be solely responsible, at its sole cost and expense, for conducting medical affairs activities with respect to Licensed Products in its respective territory, and with respect to Innovent Combination Therapies and Licensee Combination Therapies, as applicable, worldwide, including (a) communications with key opinion leaders, (b) participation in medical education, symposia and advisory boards (to the extent related to medical affairs or clinical guidance), (c) preparation of publications, congress presentations and posters and published manuscripts, (d) any activities performed in connection with patient registries and post-approval trials, and (e) obtaining educational grants and research grants, conducting investigator-initiated studies and making charitable donations, in each case, to the extent related to the promotion, marketing, sale or other Commercialization of Licensed Products. Each Party will conduct all such medical affairs activities in accordance with Applicable Laws.

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ARTICLE 10

PAYMENTS

10.1 Upfront Payment. In partial consideration of the rights granted by Innovent to Licensee hereunder, Licensee will pay to Fortvita USA a one-time, non-refundable and non-creditable payment of thirty-five million Dollars ($35,000,000) within [***] after the Effective Date.

10.2 IND Milestone Payment. In partial consideration of the rights granted by Innovent to Licensee hereunder, subject to Section 10.3(d), Licensee will pay Fortvita USA a one-time, non-refundable and non-creditable preliminary payment of [***] Dollars ($[***]) upon the acceptance of an IND filing for the first Licensed Product in the United States.

10.3 Development and Regulatory Milestones.

(a)
Development and Regulatory Milestone Payments. In partial consideration of the rights granted by Innovent to Licensee hereunder, upon the first achievement by or on behalf of Licensee or any of its Affiliates or Sublicensees of each of the events set forth below (each such event, a “Development and Regulatory Milestone Event”), Licensee will pay to Fortvita USA the following corresponding one-time, non-refundable and non-creditable milestone payments (each such payment, a “Development and Regulatory Milestone Payment”):

 

 

Development and Regulatory Milestone Events

Development and Regulatory Milestone Payments

1.

[***]

$[***]

2.

[***]

$[***]

3.

[***]

$[***]

4.

[***]

$[***]

5.

[***]

$[***]

6.

[***]

$[***]

7.

[***]

$[***]

8.

[***]

$[***]

9.

[***]

$[***]

10.

[***]

$[***]

11.

[***]

$[***]

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Development and Regulatory Milestone Events

Development and Regulatory Milestone Payments

12.

[***]

$[***]

13.

[***]

$[***]

 

Total Development and Regulatory Milestone Payments

$[***]

 

(b)
Achievement and payment of Development and Regulatory Milestones. Licensee will promptly (but in any event within [***]) notify Fortvita USA in writing of the first achievement of each Development and Regulatory Milestone Event with respect to a Licensed Product in the Licensee Territory. Thereafter, Fortvita USA will send Licensee an invoice for the corresponding Development and Regulatory Milestone Payment, and Licensee will pay such Development and Regulatory Milestone Payment within [***] after receipt of such invoice. Each Development and Regulatory Milestone Payment will be payable only once on the first occurrence of the corresponding Development and Regulatory Milestone Event in the Licensee Territory for the first achievement by or on behalf of Licensee or any of its Affiliates or Sublicensees, regardless of the number of times the Development and Regulatory Milestone Event is achieved or the number of Licensed Products that achieve the applicable Development and Regulatory Milestone Event. In no event will the aggregate Development and Regulatory Milestone Payments payable under Section 10.3(a) exceed [***] Dollars ($[***]).
(c)
[***] Development Milestones.
(i)
For purposes of Development and Regulatory Milestone Event [***] set forth in Section 10.3(a), if [***], Development and Regulatory Milestone Event [***] shall be deemed achieved and the corresponding Development and Regulatory Milestone Payment shall be deemed due and payable after the [***]. For purposes of Development and Regulatory Milestone Events [***] set forth in Section 10.3(a), if [***], Development and Regulatory Milestone Event [***], as applicable, shall be deemed achieved and the corresponding Development and Regulatory Milestone Payment(s) shall be deemed due and payable following [***]. If, at any time, the achievement of a later Development and Regulatory Milestone Event has occurred with respect to the first Licensed Product [***], and any preceding Development and Regulatory Milestone Event for such first Licensed Product [***] for such Indication have not yet been achieved, become due, or been paid, then each such skipped Development and Regulatory Milestone Event will become due and payable concurrently with such subsequent Development and Regulatory Milestone Event that has been achieved for such first Licensed Product in such country for such Indication.
(ii)
For purposes of any [***] Development and Regulatory Milestone Event set forth in Section 10.3(a), [***].

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(d)
Research Cost Deductions. In the event guidance received by Licensee from the FDA or any Applicable Laws in the United States require Licensee to regenerate any data provided by Innovent to Licensee hereunder in order to file Licensee’s first IND for a Licensed Product in the United States, then (i) Licensee will provide Innovent with written notice, which shall include the data Licensee is required to regenerate, and (ii) the Parties will discuss and agree, such agreement not to be unreasonably withheld, conditioned or delayed, upon a written plan that will describe the activities to be conducted in order to regenerate such data, which plan will include an estimated budget of the internal and external costs and expenses expected to be incurred by or on behalf of Licensee in the performance of such activities (each, an “Additional Data Plan”). Subject to the foregoing, Licensee may deduct from any Milestone Payment(s) or Royalty Payment(s), owed under this Agreement an amount equal to [***] percent ([***]%) of the internal and external costs and expenses incurred by Licensee and its Affiliates in generating or regenerating such data, to the extent included in the Additional Data Plan.

10.4 Distinguishable Competing Product Milestones.

(a)
Additional Development and Regulatory Milestone Payments. For each Distinguishable Competing Product for which Licensee exercises its Option and which is deemed to be a Licensed Product for purposes of this Agreement, upon the first achievement by or on behalf of Licensee or any of its Affiliates or Sublicensees of each of the events set forth below (each such event, an “Additional Development and Regulatory Milestone Event”), Licensee will pay to Fortvita USA the following corresponding one-time, non-refundable and non-creditable milestone payments (each such payment, an “Additional Development and Regulatory Milestone Payment”):

 

Additional Development and Regulatory Milestone Events for Distinguishable Competing Products that are Licensed Products

Additional Development and Regulatory Milestone Payments

[***]

$[***]

[***]

$[***]

Total Additional Development and Regulatory Milestone Payments for Distinguishable Competing Products that are Licensed Products

$[***]

 

(b)
Achievement and payment of Additional Development and Regulatory Milestones. Licensee will promptly (but in any event within [***]) notify Fortvita USA in writing of the first achievement of each Development and Regulatory Milestone Event with respect to a Distinguishable Competing Product that is a Licensed Product in the Licensee Territory. Thereafter, Fortvita USA will send Licensee an invoice for the corresponding Additional Development and Regulatory Milestone Payment, and Licensee will pay such Additional Development and Regulatory Milestone Payment within [***] after receipt of such invoice. Each Additional Development and Regulatory Milestone Payment will be payable only once on the first occurrence of the corresponding Additional Development and Regulatory Milestone Event in the Licensee Territory for the first achievement by or on behalf of Licensee or any of its Affiliates or

53


 

Sublicensees, regardless of the number of times the Additional Development and Regulatory Milestone Event is achieved or the number of Licensed Products that achieve the applicable Additional Development and Regulatory Milestone Event. In no event will the aggregate Additional Development and Regulatory Milestone Payments payable under Section 10.4(a) exceed [***] Dollars ($[***]).

10.5 Sales Milestones.

(a)
Sales Milestone Payments. In partial consideration of the rights granted by Innovent to Licensee herein, Licensee will pay to Fortvita USA the following one-time, non-refundable and non-creditable milestone payments (each such payment, a “Sales Milestone Payment”) for the first achievement by Licensee and its Affiliates and Sublicensees of the corresponding Annual Net Sales thresholds in the Licensee Territory set forth below (each such event, a “Sales Milestone Event”):

 

Sales Milestone Events based upon Annual Net Sales of all Licensed Products in the Licensee Territory

Sales Milestone Payments

Annual Net Sales ≥ $[***]

$[***]

Annual Net Sales ≥ $[***]

$[***]

Annual Net Sales ≥ $[***]

$[***]

Annual Net Sales ≥ $[***]

$[***]

Annual Net Sales ≥ $[***]

$[***]

Total Sales Milestone Payments

$[***]

 

(b)
Achievement and payment of Sales Milestones. Licensee will notify Fortvita USA in writing of the first achievement of each Sales Milestone Event concurrently with the delivery of the royalty report for the Calendar Quarter during which such first achievement occurs. Each Sales Milestone Payment will be payable only once on the first occurrence of the corresponding Sales Milestone Event for the Annual Net Sales of all Licensed Products in the Licensee Territory, and no amounts would be due for subsequent or repeated achievements of any Sales Milestone Event, regardless of whether a Licensed Product is approved for use in different presentations, formulations, dosages, route of administration or as a combination product. In no event will the aggregate Sales Milestone Payments payable under Section 10.5(a) exceed [***] Dollars ($[***]). The Sales Milestone Payments are cumulative, such that, if the Annual Net Sales for Licensed Products in a given Calendar Year in the Licensee Territory exceed more than one applicable Sales Milestone Event threshold, then all corresponding Sales Milestone Payments for each achieved Sales Milestone Event that has not been previously achieved will be payable.

10.6 Royalties.

(a)
Royalty Payment. Subject to the remainder of this Section 10.6, for each Licensed Product, Licensee will pay to Fortvita USA tiered royalties calculated by multiplying the applicable royalty rate set forth in the table below by the corresponding amount of incremental

54


 

Annual Net Sales of such Licensed Product in the Licensee Territory in a Calendar Year (a “Royalty Payment”). The tiered royalty rates on Annual Net Sales will be as set forth below:

 

Portion of Annual Net Sales of each Licensed Product in the Licensee Territory in a given Calendar Year

Royalty Rate

$[***] to $[***]

[***]%

Greater than $[***] and up to $[***]

[***]%

Greater than $[***] and up to $[***]

[***]%

Greater than $[***] and up to $[***]

[***]%

Greater than $[***]

[***]%

 

(b)
Royalty Term. The Royalty Payments will be payable on a Licensed Product-by-Licensed Product and country-by-country basis in the Licensee Territory from the First Commercial Sale of such Licensed Product in such country until the latest to occur of: (i) eleven (11) years after the date of the First Commercial Sale of such Licensed Product in such country, (ii) the expiration of the last-to-expire Valid Claim within the Licensed Patents in such country Covering the composition of matter of the Licensed Compound contained in such Licensed Product, or (iii) the expiration of Regulatory Exclusivity for such Licensed Product in such country (the “Royalty Term”). After the end of the Royalty Term for any Licensed Product in a given country in the Licensee Territory, Net Sales of such Licensed Product in such country shall be excluded from the calculation of Annual Net Sales for purposes of this Section 10.6.
(c)
Royalty Reductions.
(i)
Absence of Valid Claims. On a Licensed Product-by-Licensed Product, country-by-country, and Calendar Quarter-by-Calendar Quarter basis, if at any time during such Calendar Quarter there is no Valid Claim within the Licensed Patents in such country Covering the composition of matter of the Licensed Compound contained in such Licensed Product, the Royalty Payment due on the Net Sales of such Licensed Product in such country for such Calendar Quarter will be reduced by [***] percent ([***]%).
(ii)
Third Party Payments. Without limiting Licensee’s rights under Section 13.2, if, on a Licensed Product-by-Licensed Product, country-by-country, and Calendar Quarter-by-Calendar Quarter basis, Licensee or any of its Affiliates or Sublicensees obtains one or more licenses under one or more Third Party Patents that Cover the composition of matter or method of use (excluding manufacturing processes, biomarker methods and delivery devices) of such Licensed Product or the Licensed Compound that is incorporated into such Licensed Product (each such agreement, other than the Existing Upstream License Agreement, a “Third Party License”), then either (A) [***] percent ([***]%), if such Third Party License is for Third Party Patent(s) other than formulation technology Patent(s) or (B) [***] percent ([***]%), if such Third Party License is for Third Party Patent(s) that are formulation technology Patent(s), of any royalties, milestones, or other amounts paid by Licensee (or its Affiliate or Sublicensee) under such Third Party License (or sublicense thereunder) with respect to such Licensed Product in such country shall be creditable against the Royalty Payments payable to Fortvita USA with respect to

55


 

such Licensed Product. If any portion of such creditable amount cannot be credited against Royalty Payments for an applicable Calendar Quarter, such portion shall be carried forward and credited against Royalty Payments for subsequent Calendar Quarter(s), in each case subject to the limitation set forth in Section 10.6(c)(v).

For clarity, the Existing Upstream License Agreement shall not be a Third Party License for purposes of this Section 10.6(c)(ii).

(iii)
Inflation Reduction Act. Following the date on which an IRA Subject Product is designated as a “selected drug” by the Secretary of the U.S. Department of Health and Human Services and Licensee or any of its Affiliates or Sublicensees is therefore required to negotiate a maximum fair price that shall apply to sales of such IRA Subject Product in the United States during any Calendar Quarter within the price applicability period as specified by the Inflation Reduction Act of 2022, then the Royalty Payments due under Section 10.6(a) for Net Sales of such Subject Product in the United States during such Calendar Quarter will be reduced by a percentage equal to the percentage by which the selling price of such Licensed Product in the United States is decreased as a result of such designation and the ensuing maximum fair price (as defined in Section 1191(c)(3) of the Social Security Act) negotiation(s) pursuant to the Inflation Reduction Act. Any adjustment of royalties pursuant to this Section 10.6(c)(iii) shall apply after and in addition to any other adjustments to royalties pursuant to this Section 10.6(c). By way of example only, if a Licensed Product is subject to negotiation with the U.S. government and such negotiation results in a [***] percent ([***]%) decrease in the price of such Licensed Product in the U.S. and the royalty rate initially payable to Fortvita USA on given Net Sales in the U.S. before any reduction by virtue of this Section 10.6(c)(iii) is [***] percent ([***]%), then the royalty rate payable to Fortvita USA would be reduced by virtue of this Section 10.6(c)(iii) by [***] percent ([***]%), to a royalty rate of [***] percent ([***]%) of such Net Sales.
(iv)
Biosimilar Competition. If, at any time during the Royalty Term for a given Licensed Product in a given country in the Licensee Territory, (A) a Biosimilar Product with respect to such Licensed Product receives Regulatory Approval and is launched in such country (the Calendar Quarter in which the sale of such Biosimilar Product first occurs in such country, as applicable, the “Launch Quarter”) and (B) in any Calendar Quarter after the Launch Quarter in such country, the Net Sales of the applicable Licensed Product in such country are less than [***] percent ([***]%) of the average Net Sales of such Licensed Product in such country in the [***]consecutive Calendar Quarters immediately prior to the Launch Quarter, then the Royalty Payments due under Section 10.6(a) for such Calendar Quarter will be reduced by [***] percent ([***]%).
(v)
Royalty Floor. Notwithstanding any provision to the contrary set forth in the foregoing Sections 10.6(c)(i)-10.6(c)(iv), with respect to any Licensed Product, country, and Calendar Quarter, the operation of Sections 10.6(c)(i) through (iv), individually or in combination, will not reduce the Royalty Payments that are due and payable by Licensee by more than [***] percent ([***]%) of the Royalty Payments otherwise due and payable to Fortvita USA with respect to such Licensed Product in such country during such Calendar Quarter under Section 10.6(a).

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(d)
Royalty Reports. Following the First Commercial Sale of a Licensed Product for which Royalty Payments are due pursuant to this Section 10.6, and continuing for so long as Royalty Payments are due hereunder, Licensee will, within [***] after the end of each Calendar Quarter, provide Fortvita USA with a royalty report (in a template agreed to by the Parties) showing the following, on a Licensed Product-by-Licensed Product basis:
(i)
the Net Sales of Licensed Products sold by Licensee and its Affiliates and Sublicensees during such Calendar Quarter, including a high-level breakdown (by category) of deductions taken in accordance with the definition of Net Sales;
(ii)
the Royalty Payments in Dollars payable hereunder with respect to such Net Sales, with supporting calculations showing the applicable royalty rate applied and any royalty reductions taken pursuant to Section 10.6(c);
(iii)
the rate of exchange with supporting calculations, determined in accordance with Section 10.7(b), used by Licensee in determining the amount of Dollars payable hereunder; and
(iv)
a description of any Sales Milestone Event that has been achieved in such Calendar Quarter.
(e)
Royalty Payment. After the receipt of each royalty report provided by Licensee under Section 10.6(d), Fortvita USA will issue to Licensee an invoice for the amount of Royalty Payments set forth therein. Licensee will pay to Fortvita USA the Royalty Payments for each Calendar Quarter within [***] after the receipt of the corresponding invoice from Fortvita USA. If no Royalty Payments are due for any Calendar Quarter following commencement of the reporting obligation, then Licensee will so report.

10.7 Payment.

(a)
Mode of Payment. All payments made under this Agreement will be made in Dollars and will be paid by electronic transfer in immediately available funds to such bank account in the United States as designated in writing by Fortvita USA and will be free and clear of any transfer fees or charges.
(b)
Currency Exchange Rate. The rate of exchange to be used in computing the amount of currency equivalent in Dollars for calculating Net Sales in a Calendar Quarter (for purposes of the Royalty Payment calculation and determining whether a Sales Milestone Event has been achieved) will be made at the average actual foreign currency exchange rate for the month in which the expense is incurred or sale is made accordance to the exchange rates as published by The Wall Street Journal for such period, or such other source as the Parties may agree in writing.
(c)
Payment Timeline. Except as otherwise provided in this Agreement, all payments to be made by one Party to the other Party under this Agreement will be due within [***] following such Party’s receipt of an invoice from the other Party.

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10.8 Audits.

(a)
Licensee and its Affiliates will keep, and will require its Sublicensees to keep (all in accordance with GAAP, or in the case of Sublicensees, such other similar accounting principles as are then used by the applicable Sublicensee), for a period of not less than [***] from the end of the Calendar Year to which they pertain, complete and accurate records in sufficient detail to properly reflect Net Sales for purposes of the Royalty Payments and to determine whether any Milestone Payment is due and payable hereunder.
(b)
Upon Fortvita USA’s written request, Licensee will permit, and will requires its Affiliates and Sublicensees to permit (each of Licensee and its applicable Affiliate or Sublicensee, an “Audited Party”), an independent certified public accounting firm of internationally recognized standing selected by Fortvita USA and reasonably acceptable to Licensee, at Fortvita USA’s expense, to have access during normal business hours upon reasonable prior written notice to the Audited Party to such records of the Audited Party as may be reasonably necessary to audit and verify the accuracy of all payments made to Fortvita USA under this Agreement, including the basis for the calculation of such payments, for any Calendar Year ending not more than the preceding [***]. Such audits may not be conducted more frequently than [***] and no accounting period of the Audited Party may be subject to such audit more than [***]. If such accounting firm concludes that an underpayment by Licensee to Fortvita USA has occurred, then Licensee will pay the amount of such underpayment to Fortvita USA within [***] after receipt of an invoice therefor following the date such accounting firm’s written report is delivered to the Parties showing such underpayment. If such accounting firm concludes that an overpayment by Licensee to Fortvita USA was made, then such overpayment will be credited against any future payment due to Innovent hereunder (or if there is no future payment due, then Fortvita USA will promptly refund such overpayment to Licensee). The accounting firm will provide to each Party a copy of the report at the same time, which report will include the methodology and calculations used to determine its findings. Fortvita USA will bear the full cost of such audit unless such audit concludes that there was an underpayment by Licensee to Fortvita USA of more than [***]% of the amount otherwise payable for that audited period, in which case Licensee will pay the reasonable fees and expenses charged by the accounting firm for such inspection.
(c)
Fortvita USA will treat all financial information that is subject to audit under this Section 10.8 in accordance with the confidentiality and non-use provisions of Article 11, and, prior to commencing such audit, will cause its accounting firm to enter into a confidentiality and non-use agreement with the Audited Party obligating such accounting firm to treat all such financial information in confidence pursuant to such confidentiality and non-use provisions of this Agreement. Such accounting firm will not disclose Confidential Information of the Audited Party to Fortvita USA, except to the extent such disclosure is necessary to verify the accuracy of the financial reports furnished by Licensee and the amount of payments to Fortvita USA under this Agreement.

10.9 Interest. Licensee will pay interest on any amounts payable to Fortvita USA that are overdue under this Agreement from the day payment was initially due at [***] percent ([***]%) plus the prime or equivalent rate per annum quoted by The Wall Street Journal on the first Business Day after such payment is due, computed on the basis of a year of three hundred and sixty five (365) days, calculated from the due date until the date of payment; provided that in no

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case will such interest rate exceed the highest rate permitted by Applicable Laws. The payment of such interest will not foreclose a Party from exercising any other rights it may have as a result of such overdue payment.

10.10 Taxes.

(a)
Income Tax. Each Party will be responsible for its own indirect and direct taxes, including the income taxes on its business and, any other taxes incurred by such Party in connection with its business and with performing its obligations hereunder.
(b)
Withholding Tax. If Licensee is required by Applicable Laws to withhold any Taxes, then Licensee will (i) make such deduction and withholding; (ii) pay to the relevant Governmental Authority the amount withheld; and (iii) promptly forward to Innovent an official receipt (or certified copy) or other available documentation to evidence such payment to such authorities. For clarity, Licensee’s remittance of such withheld Taxes to the appropriate Governmental Authority, together with payment to Innovent of the remaining amount owed under this Agreement, shall constitute full satisfaction of the applicable payment due to Innovent. In the event that a Governmental Authority determines or otherwise notifies Licensee (including through any tax bill, assessment, notice or notification, regardless of form, which bill, assessment, notice or notification shall constitute conclusive evidence for purposes of the indemnity set forth below that Innovent owes the Withholding Amount (as defined below) to Licensee, irrespective of any defenses or claims for refund or other relief that Innovent may have vis-à-vis the Governmental Authority with respect to such obligation) that a payment made by Licensee to Innovent pursuant to this Agreement should have been subject to withholding or similar (or to additional withholding or similar) taxes, and Licensee remits such withholding or similar taxes to the Governmental Authority, including any interest and penalties that may be imposed thereon (together with the tax paid and any and all costs of collection thereof, including all of Licensee’s reasonable and documented out-of-pocket fees, costs and expenses of bringing any necessary dispute resolution claim therefor and including Licensee’s reasonable attorney fees and reasonable and documented costs and expenses of enforcing any award (including any pre-award interest) obtained, the “Withholding Amount”), Innovent shall fully indemnify and hold harmless Licensee from and against any such Withholding Amount, and Licensee shall have the right (x) to invoice Innovent for the Withholding Amount ,which invoice Innovent shall pay in full within [***] of receipt thereof, (y) to pursue reimbursement against Innovent by any available remedy and (z) to offset the Withholding Amount against future payment obligations of Licensee under this Agreement. Such indemnity and hold harmless obligations, and Licensee’s rights to remedies with respect thereto, shall survive any expiration or termination of this Agreement for a period extending for [***] beyond the expiration of any applicable statute of limitations that applies to the applicable tax obligation. Notwithstanding the foregoing, if Innovent prevails in any such dispute resolution brought by Licensee, Licensee shall reimburse Innovent for Innovent’s reasonable and documented out-of-pocket fees, costs and expenses of defending against such claim, including Innovent’s reasonable attorney fees. Notwithstanding anything to the contrary in this Agreement, in the event a Party redomiciles, assigns its rights or obligations under Section 17.4 of this Agreement, and/or any other action (each, a “Tax Action” and such Party, the “Acting Party”), and, as a result of such Tax Action, the amount of tax required to be withheld under this Section 10.10 in respect of a payment to the other Party (the “Non-Acting Party”) is greater than the amount of such tax that would have been required to have been withheld absent such Tax Action,

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then any such amount payable to the Non-Acting Party shall be adjusted to take into account such withholding taxes as may be necessary so that, after making all required withholdings or credits (including calculating the credibility of any withheld tax), the Non-Acting Party receives an amount equal to the sum it would have received had no such Tax Action occurred. The obligation to adjust payments pursuant to the preceding sentence shall not apply, however, to the extent such increased withholding tax (i) would not have been imposed but for a Tax Action taken by the Party receiving the payment subject to withholding under this Section 10.10 or (ii) is attributable to the failure by the Non-Acting Party to comply with the requirements of this Section 10.10. For purposes of this Section 10.10, a “redomiciliation” shall include a reincorporation or other action resulting in a change in tax residence of the applicable Party or its assignee.
(c)
Indirect Taxes. Notwithstanding any provision to the contrary set forth in this Agreement, all amounts stated herein are exclusive of any transfer, documentary, sales use, stamp, registration, consumption, goods and services, VAT, or other similar Taxes (each an “Indirect Tax”). In the event that any Indirect Tax is imposed under Applicable Laws with respect to the transactions, payments or the related transfer of rights or other property pursuant to the terms of this Agreement, Licensee shall pay such Indirect Taxes. If Fortvita USA bears any Indirect Tax directly, Licensee shall promptly reimburse Fortvita USA for such Tax.
(d)
Cooperation. The Parties will reasonably cooperate with each other in good faith in accordance with Applicable Laws to minimize any Taxes in connection with this Agreement, including by claiming any exemption from any required Taxes or withholdings (or additional Taxes or double taxation) and seeking any refund of Taxes paid or withheld, under any Applicable Laws or regulation or treaty from time to time in force. Fortvita USA will provide Licensee with any Tax forms or other documentation that may be reasonably necessary in order for Licensee not to withhold Tax or to withhold Tax at a reduced rate under an applicable bilateral income Tax treaty after receiving the written or electronic notification of request. Fortvita USA shall provide to Licensee at least [***] prior to the due date of the first payment under this Agreement an appropriate and properly completed Internal Revenue Service Form W‑9.

10.11 Upstream Costs. Except as set forth under Section 8.1(d), Innovent shall bear and be responsible for all financial obligations that Innovent owes to Third Parties pursuant to any written agreement pursuant to which Innovent or its Affiliates has Control of any Licensed Technology from a Third Party as of the Effective Date, including any such amounts that Innovent owes in connection with the grant to Licensee under this Agreement of the licenses to Develop and Commercialize Licensed Compounds and Licensed Products.

ARTICLE 11

CONFIDENTIALITY; PUBLICATION

11.1 Confidential Information. Except as expressly provided in this Agreement, each Party agrees that, during the Term and for [***] thereafter (or, with respect to Confidential Information that is a trade secret of the Disclosing Party, until such trade secret no longer qualifies as a trade secret under Applicable Law), such Party (the “Receiving Party”) will keep confidential and will not publish or otherwise disclose and will not use for any purpose, other than as expressly provided for in this Agreement, any information furnished to it by or on behalf of the other Party (the “Disclosing Party”) pursuant to this Agreement or under the Confidentiality Agreement

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(subject to clauses (a)-(d) below, “Confidential Information”), whether before or after the Effective Date, and whether in written, electronic, oral, visual, graphic or any other form. The Receiving Party may use the Disclosing Party’s Confidential Information only to the extent required to exercise its rights or perform its obligations under this Agreement. The Receiving Party will use at least the same standard of care as it uses to protect proprietary or confidential information of its own that is of similar nature and value, but no less than reasonable care, to ensure that its and its Affiliates’ employees, agents, consultants and other representatives (“Representatives”) do not publish or disclose or make any unauthorized use of the Confidential Information of the Disclosing Party. The Receiving Party will promptly notify the Disclosing Party upon discovery of any unauthorized use or disclosure of the Disclosing Party’s Confidential Information by the Receiving Party, its Affiliates or their respective Representatives. Notwithstanding any provision to the contrary set forth in this Agreement, the terms of this Agreement and all Joint Inventions will be deemed the Confidential Information of both Parties, and each Party will be deemed to be the Receiving Party and Disclosing Party with respect thereto. Notwithstanding the foregoing, “Confidential Information” will not include information that the Receiving Party can prove by competent evidence:

(a)
was already known by the Receiving Party prior to the time of receiving such information from the Disclosing Party, as evidenced by its pre‑existing written records;
(b)
is, as of the Effective Date, or thereafter becomes, generally known or available to the public, other than through any act or omission of the Receiving Party in breach of this Agreement;
(c)
was subsequently lawfully disclosed to the Receiving Party by a Third Party without breaching any obligation such Third Party may have to the Disclosing Party; or
(d)
is independently discovered or developed by the Receiving Party, independently of the activities undertaken by the Receiving Party pursuant to this Agreement and without the use of or reference to Confidential Information furnished by the Disclosing Party, as evidenced by the Receiving Party’s contemporaneously maintained written records.

11.2 Permitted Disclosures. Notwithstanding the provisions of Section 11.1, the Receiving Party may disclose Confidential Information of the Disclosing Party as expressly permitted by this Agreement, or if and to the extent such disclosure is reasonably necessary in the following instances:

(a)
filing or Prosecuting the Patents as permitted by this Agreement;
(b)
subject to Section 11.3(a), prosecuting or defending litigation as permitted by this Agreement;

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(c)
subject to Section 11.3(a), complying with a valid order of a court of competent jurisdiction or other Governmental Authority, or other judicial or administrative process, or if in the reasonable opinion of the Receiving Party’s legal counsel, such disclosure is otherwise required by Applicable Laws, in each case, other than disclosure of the terms of this Agreement to a Securities Regulator;
(d)
subject to Section 11.3(b), disclosure of the terms of this Agreement pursuant to Applicable Laws of the United States Securities and Exchange Commission, the Hong Kong Stock Exchange, or any national securities exchange on which the Receiving Party’s or any of its Affiliates’ securities are traded (each, a “Securities Regulator”);
(e)
disclosure in regulatory filings that the Receiving Party has the right to make under this Agreement; provided that the Receiving Party uses reasonable efforts to secure confidential treatment of such Confidential Information at least as diligent as such Party would use to protect its own Confidential Information, but in no event less than reasonable efforts;
(f)
disclosure to the Receiving Party’s Affiliates and its and its Affiliates’ respective Representatives, and the Receiving Party’s Sublicensees (or, with respect to Innovent, (sub)licensees), in each case, who have a need to know such information in order for such Receiving Party, its Affiliate or Sublicensee (or, with respect to Innovent, (sub)licensees) to exercise its rights or fulfill its obligations under this Agreement; provided in each case, that any such Affiliate, Representative or Sublicensee (or, with respect to Innovent, (sub)licensee) agrees to be bound by terms of confidentiality and non-use with respect to such Confidential Information at least as stringent as those set forth in this Article 11; and
(g)
disclosure of the existence and applicable terms of this Agreement and the status, history and results of the Exploitation of one or more Licensed Compounds or Licensed Products, in each case, to actual or bona fide potential investors, acquirers, licensors, Sublicensees (or, in the case of Innovent, (sub)licensees), lenders, and other financial or commercial partners, and their respective attorneys, accountants, banks, investors, and advisors, solely for the purpose of evaluating or carrying out or performing an actual or potential investment, acquisition, license, sublicense, debt transaction, royalty financing, or collaboration; provided that, in each such case, on the condition that such Persons are bound by obligations of confidentiality and non-use with respect to such Confidential Information at least as stringent as those set forth in this Agreement or otherwise customary for such type and scope of disclosure and that any such disclosure is limited to the maximum extent practicable for the particular context in which it is being disclosed.

11.3 Confidential Treatment.

(a)
Generally. Notwithstanding the foregoing, in the event the Receiving Party is required to make a disclosure of the Disclosing Party’s Confidential Information pursuant to Section 11.2(b) or Section 11.2(c), it will, except where prohibited by Applicable Laws or judicial or administrative process, (i) give reasonable advance notice to the Disclosing Party of such required disclosure, (ii) use reasonable efforts to secure confidential treatment of such information, which efforts shall be at least as diligent as the Receiving Party would use to protect its own Confidential Information of similar nature and value, and (iii) cooperate with any lawful efforts by the Disclosing Party, at the Disclosing Party’s request and expense, to contest such disclosure,

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to obtain a protective order for the Confidential Information required to be disclosed, or to secure other confidential treatment of such Confidential Information. In the event that no such protective order or other remedy is obtained, then the Receiving Party will furnish only that portion of the Disclosing Party’s Confidential Information that the Receiving Party is advised by legal counsel is legally required to be disclosed. Disclosure by the Receiving Party of Confidential Information in accordance with Section 11.2(b) or Section 11.2(c) will not, in and of itself, cause the information so disclosed to cease to be treated as Confidential Information under this Agreement, except to the extent that, by virtue of disclosure by the Receiving Party in full compliance with this Section 11.3, such information becomes generally known or available. In any event, the Receiving Party agrees to take all reasonable action to avoid disclosure of the Disclosing Party’s Confidential Information hereunder.
(b)
Securities Filings. In the event the Receiving Party is required to disclose of the terms of this Agreement pursuant to Applicable Laws of a Securities Regulator pursuant to Section 11.2(d), such Party will, within a reasonable time prior to any such filing (and to the extent possible at least [***] prior to any such filing), (i) provide the other Party with a copy of this Agreement showing any provisions hereof as to which such Party proposes to request confidential treatment, (ii) provide the other Party with an opportunity to comment on any such proposed redactions and to suggest additional redactions, and (iii) take such Party’s reasonable comments into consideration before making such disclosure; provided that each Party will ultimately have the right to disclose to any Securities Regulator any information that such Party determines, on the advice of legal counsel, is reasonably required by Applicable Laws; provided further, that the Parties will use their reasonable efforts to file redacted versions of this Agreement with any Securities Regulator that are consistent with redacted versions previously filed with any other Securities Regulator(s).

11.4 Use of Names. Subject to Section 11.6, neither Party nor any of its Affiliates will mention or otherwise use any company name, logo or trademark of the other Party or any of its Affiliates in any publication, press release, marketing and promotional material or other form of publicity in connection with this Agreement or activities hereunder without the prior written approval of such other Party; provided that such consent will not be required for a Party’s use of the other Party’s company name and logo to identify such other Party as a collaborator on such first Party’s website, in public presentations or pursuant to any of the permitted disclosures set forth in Section 11.2 and Section 11.6(b).

11.5 Publication of Licensed Product Information. Each Party recognizes that the publication, such as by public oral presentation, manuscript or abstract, of the results of Development activities, including Clinical Trials, with respect to the Licensed Products may be beneficial to both Parties, provided such publications are subject to reasonable controls to protect Confidential Information of each Party. Accordingly, each Party will have the right to review and comment on any material proposed for publication or public oral or visual presentation by the other Party that includes Confidential Information of such Party or data generated from the Development of the Licensed Products under this Agreement. The Party desiring to make any such publication will provide the other Party with a written copy of the proposed publication in reasonably sufficient time prior to publication to allow the other Party to comment upon such announcement prior to publication. With respect to any manuscripts proposed for publication, the other Party will respond with comments as soon as practicable to the other Party but in no event later than [***] from the

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date of delivery to such Party. With respect to public oral presentation materials, abstracts, and posters, the other Party will respond with comments as soon as practicable to the other Party but in no event later than [***] from the date of delivery to such Party. Each Party will comply with the other Party’s request to delete such other Party’s Confidential Information in any such proposed publication. In addition, if any such publication contains patentable subject matter to which the non-publishing Party has any ownership or license rights, then, at the non-publishing Party’s request, the publishing Party will either delete the patentable subject matter from such publication or delay any submission for publication or other public disclosure for an additional period of up to [***] so that appropriate Patent applications may be prepared and filed.

11.6 Public Announcements.

(a)
The Parties have agreed upon the content of and timing for the release of a joint press release substantially in the form attached hereto as Exhibit 11.6 (the “Initial Press Release”). Except as may be expressly permitted under Section 11.2, Section 11.5 or this Section 11.6, neither Party nor any of either Party’s Affiliates will make any public announcement concerning this Agreement, its subject matter or the transactions described herein without first obtaining the approval of the other Party and the Parties’ mutual agreement as to the nature, text and timing of such announcement, which approval and agreement will not be unreasonably withheld, conditioned or delayed. The Party desiring to make any such a public announcement will provide the other Party with a written copy of the proposed announcement in reasonably sufficient time prior to public release to allow such other Party to comment on such announcement prior to public release. In the case of press releases or other public communications required to be made by Applicable Law, judicial order or stock exchange or quotation system rule, the Party making such press release or public announcement will provide to the other Party a copy of the proposed press release or public announcement in written or electronic form upon such advance notice as is practicable under the circumstances for the purpose of allowing the notified Party to review and comment upon such press release or public announcement. Under such circumstances, the announcing Party will not be obligated to delay making any such press release or public communication beyond the time required by Applicable Law. For clarity, neither Party will be required to seek the permission of the other Party to publicly disclose any information regarding the terms of this Agreement or any amendment hereto that has already been publicly disclosed by either Party in accordance with the terms of this Agreement; provided that such information remains accurate and the most current information with respect to the applicable subject matter as of such time.
(b)
Notwithstanding Section 11.6(a), each Party and its Affiliates and Sublicensees (or, with respect to Innovent, (sub)licensees) shall have the right, subject to Sections 11.1 through 11.3 and Section 11.5, to make public statements, press releases, and other public disclosures regarding the Exploitation of one or more Licensed Compounds or Licensed Products, including the status, history and results of such Exploitation, without the other Party’s prior approval. To the extent such public statements, press releases, and other public disclosures include any disclosure of Confidential Information of the other Party beyond the status, history and results of Exploitation by the announcing Party, the announcing Party shall provide the other Party with a draft of the proposed public statement, press release, or other public disclosure prior to making such public statement, press release, or other public disclosure. The other Party shall respond promptly and in any event no later than [***] after receipt of such draft, or earlier if required by

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Applicable Law. If the reviewing Party does not provide written comment during such time period, the announcing Party and its Affiliates or its or their Sublicensees (or (sub)licensees) shall have the right to proceed with the public statement, press release, or other public disclosure. If requested by the reviewing Party during such time period, the announcing Party or its Affiliates or its or their Sublicensees (or (sub)licensee) shall, as applicable, delete from such proposed public statement, press release, or other public disclosure any Confidential Information of the reviewing Party beyond the status, history and results of Exploitation by the announcing Party.

11.7 Prior Non-Disclosure Agreements. Upon execution of this Agreement, the terms of this Article 11 will supersede any prior non-disclosure, secrecy or confidentiality agreement between the Parties, including the Confidentiality Agreement. Any information disclosed under such prior agreements by or on behalf of Innovent will be deemed disclosed by Innovent under this Agreement, and any information disclosed under such prior agreements by or on behalf of Licensee will be deemed disclosed by Licensee under this Agreement.

ARTICLE 12

REPRESENTATIONS, WARRANTIES, AND COVENANTS

12.1 Representations and Warranties of Each Party. Each Party represents and warrants to the other Party as of the Effective Date that:

(a)
it is a company or corporation duly organized, validly existing, and in good standing under the laws of the jurisdiction in which it is incorporated or organized, and has full corporate power and authority and the legal right to own and operate its property and assets and to carry on its business as it is now being conducted and as contemplated in this Agreement, including the right to grant the licenses granted by it hereunder;
(b)
(i) it has the organizational power and authority and the legal right to enter into this Agreement and perform its obligations hereunder; (ii) it has taken all necessary organizational action on its part required to authorize the execution and delivery of this Agreement and the performance of its obligations hereunder; and (iii) this Agreement has been duly executed and delivered on behalf of such Party, and constitutes a legal, valid, and binding obligation of such Party that is enforceable against it in accordance with its terms, subject to applicable bankruptcy, insolvency, moratorium, and other similar laws affecting creditors’ rights generally and by general principles of equity;
(c)
it is not a party to any agreement that would prevent it from granting the rights granted to the other Party under this Agreement or performing its obligations under this Agreement;
(d)
all consents, approvals and authorization from all Governmental Authorities or other Third Parties required to be obtained by such Party in connection with execution of this Agreement have been obtained;

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(e)
to its knowledge, neither it nor any of its Affiliates, or its or its Affiliates’ directors, officers, employees, distributors, agents, representatives, sales intermediaries or other Third Parties acting on behalf of such Party or any of its Affiliates:
(i)
has taken any action in violation of any applicable anti-corruption law, including the U.S. Foreign Corrupt Practices Act (15 U.S.C. § 78 dd-1 et seq.); or
(ii)
has corruptly, offered, paid, given, promised to pay or give, or authorized the payment or gift of anything of value, directly or indirectly, to any Public Official, for the purposes of: (A) influencing any act or decision of any Public Official in his or her official capacity; (B) inducing such Public Official to do or omit to do any act in violation of his or her lawful duty; (C) securing any improper advantage; or (D) inducing such Public Official to use his or her influence with a government, governmental entity, or commercial enterprise owned or controlled by any government (including state-owned or controlled veterinary or medical facilities) in obtaining or retaining any business whatsoever; and
(f)
none of the officers, directors, or employees of such Party or of any of its Affiliates or agents acting on behalf of such Party or any of its Affiliates, in each case, that are employed or reside outside the U.S., are themselves Public Officials.

12.2 Additional Representations and Warranties of Innovent. Innovent represents and warrants to Licensee that, as of the Effective Date:

(a)
Innovent Controls the Licensed Technology and has the legal authority or exclusive right (whether by ownership, license or otherwise) under the Licensed Technology to grant all rights and licenses to Licensee as purported to be granted pursuant to this Agreement. Without limiting the foregoing, (i) Innovent Suzhou solely owns all rights, title and interests in and to the Innovent Platform Technology, including the Innovent Platform Patents and Innovent Platform Know-How, and (ii) Fortvita USA solely owns all rights, title and interests in and to the Licensed Product Specific Patents;
(b)
Exhibit 1.102 sets forth a complete and accurate list of all Licensed Patents existing as of the Effective Date, indicating the owner(s) of such Licensed Patents. Except as set forth on Exhibit 1.102, neither Innovent nor any of its Affiliates owns or Controls any Patent that is necessary to Develop, Manufacture, or Commercialize any Licensed Product in the Licensee Territory or that is a Patent in the Licensee Territory that is or has been practiced by Innovent/ to Develop, Manufacture, or Commercialize any Licensed Product in the Licensee Territory or the Innovent Territory;
(c)
Innovent has not granted any right or license to any Third Party under any Licensed Technology that conflicts with or limits the scope of the rights or licenses granted to Licensee hereunder;
(d)
Neither Innovent nor any of its Affiliates has granted any lien or security interest on any of the Licensed Technology, and the Licensed Technology is free and clear of any mortgage, pledge, claim, security interest, covenant, easement, encumbrance, lien, or charge of any kind, in each case that would conflict or limit any of the rights granted to Licensee hereunder;

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(e)
The Existing Upstream License Agreement is the only agreement existing as of the Effective Date between Innovent or any of its Affiliates, on the one hand, and any Third Party, on the other hand, pursuant to which Innovent or any of its Affiliates Controls any Licensed Technology (excluding ordinary course services agreements and vendor agreements that may include licenses ancillary to commercially available research tools, reagents or services) and, other than the Patents and Know-How licensed under the Existing Upstream License Agreement, Innovent or its Affiliates is the sole and exclusive owner of all Licensed Technology. The Existing Upstream License Agreement is in full force and effect and none of Innovent, its Affiliates nor, to Innovent’s knowledge, any Third Party that is a party to the Existing Upstream License Agreement is or has been in material breach of, or sent or received notice alleging any material breach of, the Existing Upstream License Agreement;
(f)
Innovent, its Affiliates, and its and their employees, and to Innovent’s Knowledge, its and their consultants and contractors, in each case, involved in any activities related to any Licensed Compound are not, and have not been, debarred or disqualified by any Regulatory Authority as of the Effective Date, and have complied in all material respects with all Applicable Laws in connection with conducting all Development and Manufacturing of the Licensed Compounds as of the Effective Date;
(g)
Neither Innovent nor any of its Affiliates has received any written notice or threat in writing from any Third Party asserting or alleging that any activities with respect to any Licensed Compound by or on behalf of Innovent or its Affiliates prior to the Effective Date infringed, misappropriated, or otherwise violated any intellectual property rights of such Third Party;
(h)
To Innovent’s Knowledge, the practice of the Licensed Technology as contemplated under this Agreement does not (i) infringe any claim of any issued Patent of any Third Party (without regard to actual or alleged infringement under 35 USC §271(e)(1) and comparable provisions under applicable Law outside the United States, including any safe harbor, research exemption, government or executive declaration of urgent public health need, or any similar right available at law or in equity that otherwise exempts actual or alleged infringing activity), or (ii) misappropriate any Know-How of any Third Party;
(i)
No claim or action has been brought against Innovent or any of its Affiliates or, to Innovent’s Knowledge, threatened, by any Third Party relating to any of the Licensed Technology;
(j)
To Innovent’s Knowledge, the Licensed Patents have been properly maintained and are not invalid or unenforceable, in whole or in part;
(k)
To Innovent’s Knowledge, no interference, opposition, cancellation or other protest proceeding, nor any litigation proceeding or inter partes review, post grant review, or covered business methods review, has been filed against a Licensed Patent; and

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(l)
There are no legal claims, judgments or settlements against or owed by Innovent or its Affiliates, or pending or, to Innovent’s Knowledge, threatened, legal claims or litigation against Innovent or any of its Affiliates, in each case, relating to antitrust, anti-competition, anti-bribery or corruption violations, including under any Anti-Corruption Laws.

12.3 Additional Representations and Warranties of Licensee. Licensee represents and warrants to Innovent that as of the Effective Date:

(a)
there are no legal claims, judgments or settlements against or owed by Licensee or its Affiliates, or pending or, to Licensee’s or its Affiliates’ knowledge, threatened, legal claims or litigation against Licensee or any of its Affiliates, in each case, relating to antitrust, anti-competition, anti-bribery or corruption violations, including under any Anti-Corruption Laws; and
(b)
Licensee, its Affiliates, and its and their employees, and to Licensee’s knowledge, its and their consultants and contractors, that would be involved in its activities hereunder with respect to any Licensed Compound or Licensed Product are not, and have not been, debarred or disqualified by any Regulatory Authority.

12.4 Covenants.

(a)
Each Party covenants to the other Party that, in the course of performing its obligations or exercising its rights under this Agreement, it will, and will cause its Affiliates and (sub)licensees to, comply with the terms of this Agreement, all Applicable Laws, including as applicable, cGMP, GCP, GLP, and GSP standards, and will not employ or engage any party who has been debarred by any Regulatory Authority, or, to such Party’s knowledge, is the subject of debarment proceedings by a Regulatory Authority.
(b)
Each Party will not grant any right to, or enter into any agreement with, any Third Party that is in conflict with the rights granted to the other Party under this Agreement and will not take any action that would prevent it from granting the rights granted to the other Party under this Agreement or that would otherwise conflict with or adversely affect the rights granted to the other Party under this Agreement.
(c)
Innovent and its Affiliates will not waive any of their respective rights under, or (except as otherwise agreed by Licensee in advance in writing) amend or terminate, the Existing Upstream License Agreement in any manner that conflicts with or limits the scope of any of the rights or licenses granted to Licensee under this Agreement. Without limiting the foregoing, Innovent shall, as soon as practicable, furnish Licensee with copies of each amendment of the Existing Upstream License Agreement (or any portion thereof) solely to the extent that such amendment relates to the rights and obligations of Licensee under this Agreement. Innovent and its Affiliates will not breach any provision of the Existing Upstream License Agreement.
(d)
Compliance with Anti-Corruption Laws. Each Party hereby covenants to the other Party that:
(i)
it will not, in the performance of this Agreement, perform any actions that are prohibited by local and other anti-corruption laws (including the provisions of the

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U.S. Foreign Corrupt Practices Act, the U.K. Anti-Bribery Law, and the Anti-Corruption Act of Greater China, collectively “Anti-Corruption Laws”) that may be applicable to such Party to this Agreement;
(ii)
it will not, in the performance of this Agreement, directly or indirectly, make any payment, or offer or transfer anything of value, or agree or promise to make any payment or offer or transfer anything of value, to a government official or government employee, to any political party or any candidate for political office or to any other Third Party with the purpose of influencing decisions related to either Party or its business in a manner that would violate Anti-Corruption Laws;
(iii)
it will, on request by the other Party, verify in writing that, to such Party’s knowledge, there have been no violations of Anti-Corruption Laws by such Party or persons employed by or subcontractors used by such Party in the performance of this Agreement, or will provide details of any exception to the foregoing; and
(iv)
it will maintain records (financial and otherwise) and supporting documentation related to the subject matter of this Agreement in order to document or verify compliance with the provisions of this Section 12.4(d) and upon request of the other Party, upon reasonable advance notice, will provide a Third Party auditor mutually acceptable to the Parties with access to such records for purposes of verifying compliance with the provisions of this Section 12.4(d) Acceptance of a proposed Third Party auditor may not be unreasonably withheld, conditioned or delayed by either Party. It is expressly agreed that the costs related to the Third Party auditor will be fully paid by the Party requesting the audit, and that any auditing activities may not unduly interfere with the normal business operations of the Party subject to such auditing activities. The audited Party may require the Third Party auditor to enter into a reasonable confidentiality agreement in connection with such an audit.
(e)
Compliance with Export Control Laws. Each Party hereby covenants to the other Party that:
(i)
it will conduct its activities under this Agreement in compliance with applicable export controls and trade and economic sanctions laws and regulations (collectively, “Export Controls”); and
(ii)
it shall not, directly or indirectly, export, reexport, transfer, divert, or release any materials, technology, or software (each an “item”) to any prohibited country, territory, entity, individual, or for any prohibited end-use, unless authorized pursuant to Export Controls.

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12.5 NO OTHER REPRESENTATIONS OR WARRANTIES. EXCEPT AS EXPRESSLY STATED IN THIS AGREEMENT, NO REPRESENTATIONS OR WARRANTIES WHATSOEVER, WHETHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR NON-MISAPPROPRIATION OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS, ARE MADE OR GIVEN BY OR ON BEHALF OF A PARTY. ALL SUCH REPRESENTATIONS AND WARRANTIES, WHETHER ARISING BY OPERATION OF LAW OR OTHERWISE, ARE HEREBY EXPRESSLY EXCLUDED.

ARTICLE 13

INDEMNIFICATION

13.1 By Licensee. Licensee will indemnify, defend and hold harmless Innovent and its Affiliates, and their directors, officers, employees and agents (individually and collectively, the “Innovent Indemnitee(s)”), from and against all losses, liabilities, damages and expenses (including reasonable attorneys’ fees and costs) (individually and collectively, “Losses”) incurred by them in connection with any claims, demands, actions or other proceedings by any Third Party (individually and collectively, “Claims”) arising after the Effective Date to the extent arising from any of the following, as applicable: (a) the Exploitation of any Licensed Compound or Licensed Product by or under the authority of Licensee, (b) the negligence or willful or intentional misconduct of Licensee or any of its Affiliates, Sublicensees or any other Licensee Indemnitee, or (c) Licensee’s breach of this Agreement, including any of its representations, warranties, or covenants hereunder; in each case (a) through (c), except to the extent such Losses arise from, are based on, or result from any activity or occurrence for which Innovent is obligated to indemnify the Licensee Indemnitees pursuant to Section 13.2.

13.2 By Innovent. Innovent will indemnify, defend and hold harmless Licensee and its Affiliates, and their directors, officers, employees and agents (individually and collectively, the “Licensee Indemnitee(s)”), from and against all Losses incurred by them in connection with any Claims to the extent arising from any of the following, as applicable: (a) the Exploitation of any Licensed Compound by or under the authority of Innovent (other than by or on behalf of Licensee), (b) the negligence or willful or intentional misconduct of Innovent or any of its Affiliates, (sub)licensees (other than Licensee), sublicensees or other Innovent Indemnitee, or (c) Innovent’s breach of this Agreement, including any of its representations, warranties, or covenants hereunder; in each case (a) through (c) above, except to the extent such Losses arise from, are based on, or result from any activity or occurrence for which Licensee is obligated to indemnify the Innovent Indemnitees pursuant to Section 13.1.

13.3 Procedure. A Party that intends to claim indemnification under Section 13.1 or Section 13.2, as applicable (the “Indemnitee”) with respect to any Claim will: (a) notify the other Party (the “Indemnitor”) in writing of such Claim as soon as reasonably practicable after it receives notice of such Claim (it being understood that the Indemnitee’s failure to deliver written notice of such Claim to the Indemnitor within a reasonable time after the Indemnitee receives notice of such Claim, will relieve the Indemnitor of its indemnification obligations under Section 13.1 or Section 13.2, as applicable, with respect to such Claim only to the extent such failure is prejudicial to the Indemnitor’s ability to defend such Claim); (b) permit the Indemnitor to assume direction and control of the defense of the Claim (including the right to settle the claim solely for

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monetary consideration) using counsel reasonably satisfactory to the Indemnitee; and (c) cooperate fully with the Indemnitor and its legal representatives in the investigation and defense of the Claim, as requested by the Indemnitor (at the expense of the Indemnitor). If the Indemnitor does not assume control of such defense within [***] after receiving notice of the Claim from the Indemnitee, then the Indemnitee will control such defense and, without limiting the Indemnitor’s indemnification obligations, the Indemnitor will reimburse the Indemnitee for all documented costs, including reasonable attorney fees, incurred by the Indemnitee in defending itself within [***] after receipt of any invoice therefor from the Indemnitee. The Party not controlling such defense may participate therein at its own expense. The Party controlling such defense will keep the other Party advised of the status of such Claim and the defense thereof and will consider recommendations made by the other Party with respect thereto. The Indemnitee will not agree to any settlement of such Claim without the prior written consent of the Indemnitor, which will not be unreasonably withheld, delayed or conditioned. The Indemnitor will not agree to any settlement of such Claim or consent to any judgment in respect thereof that does not include a complete and unconditional release of the Indemnitee from all liability with respect thereto, that imposes any liability or obligation on the Indemnitee or that acknowledges fault by the Indemnitee; in each case, without the prior written consent of the Indemnitee.

13.4 Insurance. Licensee, at its own expense, will obtain and maintain, during the Term and for [***] thereafter, reasonable insurance, including commercial general liability insurance and product liability insurance, at levels adequate to cover its obligations hereunder and consistent with industry standards. Licensee will furnish to Innovent on request certificates issued by the insurance company setting forth the amount of its liability insurance. It is understood that such insurance will not be construed to create a limit of Licensee’s liability with respect to its indemnification obligations under this Article 13 or otherwise. Commercial insurance will be obtained from reputable and financially secure insurance carriers having a minimum A.M. Best rating (or equivalent) of A-. Licensee will ensure continuity of coverage for claims which may be presented during the [***] period following the expiration or termination of this Agreement.

13.5 LIMITATION OF LIABILITY. SUBJECT TO AND WITHOUT LIMITING (A) OBLIGATIONS WITH RESPECT TO THIRD PARTY CLAIMS IN CONNECTION WITH THE INDEMNIFICATION OBLIGATIONS OF EACH PARTY WITH RESPECT TO CLAIMS UNDER SECTION 13.1 OR SECTION 13.2, (B) LIABILITY AS A RESULT OF A BREACH OF ARTICLE 11, (C) LIABILITY FOR BREACH OF ANY COVENANTS UNDER SECTION 3.6, OR (D) A PARTY’S LIABILITY FOR INFRINGEMENT OR MISAPPROPRIATION OF THE OTHER PARTY’S INTELLECTUAL PROPERTY RIGHTS, INCLUDING ANY INTELLECTUAL PROPERTY RIGHTS LICENSED TO THE OTHER PARTY, NEITHER PARTY OR ANY OF ITS AFFILIATES WILL BE LIABLE TO THE OTHER PARTY UNDER ANY CONTRACT, WARRANTY, NEGLIGENCE, TORT, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY SPECIAL, INDIRECT, INCIDENTAL, PUNITIVE, MULTIPLIED OR CONSEQUENTIAL DAMAGES OR FOR LOST PROFITS (EVEN IF DEEMED DIRECT DAMAGES) ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT.

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ARTICLE 14

INTELLECTUAL PROPERTY

14.1 Ownership.

(a)
Background Rights. As between the Parties, each Party will retain all rights, title, and interests in and to all Know-How, Patents, and other intellectual property, Controlled by such Party as of the Effective Date or become Controlled by such Party outside of its performance of activities under, or otherwise independently of, this Agreement. Without limiting the foregoing, as between the Parties, Innovent and its Affiliates will remain the sole and exclusive owner of all Licensed Technology, including Innovent Platform Technology.
(b)
Inventions. Ownership of all Inventions will be allocated based on inventorship, as determined in accordance with the rules of inventorship under the U.S. patent laws. A Party will own all Inventions that are invented, discovered, generated, conceived, reduced to practice, or made solely by it, its Affiliates, or its or its Affiliates’ employees, agents or independent contractors (“Sole Inventions”). The Parties will jointly own all Inventions that are made jointly by a Party (including its Affiliate, or its or its Affiliate’s employees, agents or independent contractors) together with the other Party (including such other Party’s Affiliates, or its or its Affiliate’s employees, agents or independent contractors) (“Joint Inventions”; Patents claiming the Joint Inventions are referred to herein as “Joint Patents”). Subject to the licenses granted by each Party to the other Party under this Agreement, and subject to Section 3.6, each Party will own an undivided equal interest in all Joint Inventions and Joint Patents, without a duty of accounting or an obligation to seek consent from the other Party, for the exploitation or license of the Joint Inventions or Joint Patents (including the right to practice, license, sublicense, assign, transfer and otherwise exploit such Party’s interest in Joint Inventions and Joint Patents for any and all purposes on a worldwide basis without restriction), and each Party hereby waives any right it may have under the laws of any jurisdiction to require any such accounting or consent.

14.2 Disclosure of Inventions.

(a)
Licensee will promptly disclose to Innovent all Inventions constituting improvements to Licensed Technology, including all invention disclosure or other similar documents submitted to Licensee or its Affiliates by its or its Affiliates’ employees, agents, or independent contractors relating to such Inventions, and will also promptly respond to reasonable requests from Innovent for additional information relating to such Inventions. Licensee shall (and shall cause all its Affiliates to) cause all of its employees, agents or independent contractors who perform activities for Licensee under this Agreement to be under an obligation to assign to Licensee (or its Affiliates) their rights in and to any such Inventions.
(b)
Innovent will promptly disclose to Licensee all Inventions constituting improvements to Licensee Product IP and/or any Inventions constituting Licensed Technology, including all invention disclosure or other similar documents submitted to Innovent or its Affiliates by its or its Affiliates’ employees, agents, or independent contractors relating to such Inventions, and will also promptly respond to reasonable requests from Licensee for additional information relating to such Inventions. Innovent shall (and shall cause all its Affiliates to) cause all of its employees, agents or independent contractors who perform activities for Innovent under this

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Agreement to be under an obligation to assign to Innovent (or its Affiliates) their rights in and to any such Inventions.

14.3 Prosecution.

(a)
Licensee Product IP. As between the Parties, Licensee shall have the sole and exclusive right, at Licensee’s option, using counsel of Licensee’s choice and at Licensee’s sole cost and expense, to prosecute all Patents Covering or disclosing Licensee Product IP (“Licensee Product Patents”) worldwide. Licensee will (A) keep Innovent reasonably informed of progress with regard to the Prosecution of the Licensee Product Patents in the Innovent Territory; (B) provide to Innovent copies of all material patent office submissions and correspondence with respect to the Licensee Product Patents in the Innovent Territory; and (C) provide Innovent a reasonable opportunity to comment with respect to the Licensee Product Patents in the Innovent Territory and Licensee will consider incorporating any timely comments in good faith.
(b)
Licensee Controlled Patents. As between the Parties, Licensee shall have the first right, but not the obligation, to Prosecute all Licensed Product Specific Patents and Joint Patents in the Licensee Territory that specifically claim a Licensed Compound (collectively, the “Licensee Controlled Patents”) using counsel of Licensee’s choice and at Licensee’s sole cost and expense. Licensee will (A) keep Innovent reasonably informed of progress with regard to the Prosecution of the Licensee Controlled Patents; (B) provide to Innovent copies of all material patent office submissions and correspondence with respect to the Licensee Controlled Patents; and (C) provide Innovent a reasonable opportunity to comment thereon, and Licensee will consider incorporating any timely comments in good faith.
(c)
Innovent Step-in Rights. In the event that Licensee intends to abandon or cease the Prosecution of any Licensee Controlled Patent (other than for the purpose of abandoning and refiling in the normal course of Prosecution), Licensee will provide reasonable prior written notice to Innovent of such intention to abandon or cease such Prosecution (which notice will be given no later than [***] prior to the next deadline for any action that must be taken with respect to any such Licensee Controlled Patent in the relevant patent office). In such case, at Innovent’s request, Innovent shall have the right, but not the obligation, to assume responsibility for Prosecution of such Licensee Controlled Patent. Upon such assumption, Innovent shall control the Prosecution of such Licensee Controlled Patent subject to the same terms and conditions set forth in this Section 14.3(b) as applicable to Licensee, at Innovent’s cost and expense.
(d)
Innovent Controlled Patents. As between the Parties, without limiting Section 14.3(d), Innovent shall have the first right, but not the obligation, to Prosecute all (i) Joint Patents in the Innovent Territory (ii) all Licensed Patents (other than Licensed Product Specific Patents) worldwide and (iii) all Licensed Product Specific Patents in the Innovent Territory ((i) through (iii), the “Innovent Controlled Patents”) and at Innovent’s sole cost and expense. Innovent will (A) keep Licensee reasonably informed of progress with regard to the Prosecution of such Innovent Controlled Patents; (B) provide to Licensee copies of all material patent office submissions and correspondence with respect to the Innovent Controlled Patents; and (C) provide

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Licensee a reasonable opportunity to comment thereon, and Innovent will consider incorporating any timely comments in good faith.
(e)
Licensee Step-in Rights. If Innovent intends to abandon or cease the Prosecution of any Joint Patent in any region, Innovent will provide reasonable prior written notice to Licensee of such intention to abandon or cease such Prosecution (which notice will be given no later than [***] prior to the next deadline for any action that must be taken with respect to any such Joint Patent in the relevant patent office in such region in the Innovent Territory). In such case, at Licensee’s request, Licensee shall have the right, but not the obligation, to assume responsibility for Prosecution of such Joint Patent in such region. Upon such assumption, Licensee shall control the Prosecution of such Joint Patent in such region subject to the same terms and conditions set forth in this Section 14.3(e) as applicable to Innovent, at its cost and expense.
(f)
Innovent Platform Technology. As between the Parties, Innovent shall have the exclusive right, but not the obligation, to Prosecute all Innovent Platform Patents anywhere in the world, using counsel of Innovent’s choice and at Innovent’s sole cost and expense.
(g)
Cooperation. Each Party will select and engage a law firm or patent agent to handle the Prosecution activities under Sections 14.3(a) through 14.3(d) and cooperate with the other Party in connection with all activities relating to the Prosecution of the Licensed Patents, Joint Patents, and Licensee Product Patents undertaken by such other Party pursuant to this Section 14.3, including: (i) executing all papers and instruments, or requiring its employees or contractors, to execute such papers and instruments, so as to effectuate the ownership of Inventions set forth in Section 14.1, and Patents claiming such Inventions, and to enable the other Party to Prosecute the Licensed Patents, Joint Patents or Licensee Product Patents as permitted by this Section 14.3; and (ii) promptly informing the other Party of any matters coming to such Party’s attention that may affect the other Party’s Prosecution of any Licensed Patent, Joint Patent or Licensee Product Patent. Each Party will also promptly provide to the other Party all information reasonably requested by such other Party with regard to such Party’s activities pursuant to this Section 14.3.

14.4 Defense of Third Party Infringement Claims.

(a)
If any Party, becomes the subject of a Third Party’s claim or assertion of infringement of the Patents of such Third Party relating to the Exploitation of any Licensed Compound or Licensed Product (each, a “Third Party Infringement Claim”), the Party first becoming aware of the Third Party Infringement Claim will promptly notify the other Party in writing.
(b)
Innovent will have the sole right to control the defense of any Third Party Infringement Claim within the Innovent Territory (including involving the alleged infringement of a Third Party Patent relating to Innovent’s activities) at its own expense and by counsel of its own choice, and Licensee will have the right (but not the obligation), at its own expense, to be represented in any such action by counsel of its own choice.
(c)
Subject to Innovent’s rights with respect to Innovent Platform Technology, Licensee will have the sole right to control the defense of any Third Party Infringement Claim within the Licensee Territory (including involving the alleged infringement of a Third Party Patent

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related to Licensee’s activities) at its own expense and by counsel of its own choice, and Innovent will have the right (but not the obligation), at its own expense, to be represented in any such action by counsel of its own choice.
(d)
Neither Party will enter into any settlement of any Third Party Infringement Claim: (a) in a manner that would diminish the rights or interests of the other Party with respect to the Licensed Products (and, in the case of Innovent, the Innovent Platform) without the prior written consent of such other Party, which will not be unreasonably withheld; or (b) that would impose any cost, obligation, or liability on the other Party, or admit the invalidity or unenforceability of any Patent that is Controlled by the other Party, without such other Party’s prior written consent, which may be withheld in such other Party’s sole discretion. This Section 14.4 shall not limit or exclude either Party’s rights to indemnification pursuant to Article 13.

14.5 Enforcement.

(a)
Notice. Each Party will promptly notify the other Party in writing of any alleged or threatened infringement of any Licensed Patent, or Joint Patent of which it becomes aware or of any action or threatened action seeking a declaratory judgment of non‑infringement of a Licensed Patent or Joint Patent of which it becomes aware (“Infringement”).
(b)
Product Infringement.
(i)
As between the Parties, Licensee will have the first right, but not the obligation, to bring and control any other action or proceeding regarding any alleged or threatened Infringement that involves the Licensed Product Specific Patents in the Licensee Territory (“Product Infringement”), at its own expense and by counsel of its own choice. Licensee will keep Innovent reasonably informed of the status and progress of such action or proceeding. In addition, Licensee shall provide Innovent with drafts of all material papers to be filed with the court or patent office, as applicable, in connection with such action or proceeding to the extent permitted by Applicable Laws or any protective or confidentiality order entered by such court or patent office (excluding any information that is confidential to a Third Party), and shall consider in good faith all timely reasonable comments thereto by Innovent before filing such papers. Innovent shall be entitled to separate representation in such matter by counsel of its own choice and at its own expense.
(ii)
If (A) Licensee elects not to commence an action or proceeding with respect to a Product Infringement that Licensee has the first right to bring and control pursuant to Section 14.5(b)(i), or settle or otherwise secure the abatement of any such Product Infringement, or (B) Licensee fails to commence any such action or proceeding with respect to a Product Infringement pursuant to Section 14.5(b)(i) within (1) [***] following a written request by Innovent to do so, or (2) [***] before the time limit, if any, set forth in the Applicable Laws for the filing of such action or proceeding, whichever comes first, then Innovent will have the right to bring and control any such action or proceeding, at its own expense and by counsel of its own choice, and Licensee will have the right, at its own expense, to be represented in any such action by counsel of its own choice. In such event and to the extent time permits, promptly after Licensee’s notice to Innovent that it does not elect to commence any such action or proceeding, the Parties shall meet to discuss in good faith the reasons for Licensee’s decision not to commence

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such action or proceeding. Innovent will keep Licensee reasonably informed of the status and progress of such action or proceeding. In addition, Innovent shall provide Licensee with drafts of all material papers to be filed with the court or patent office (excluding any information that is confidential to a Third Party), as applicable, to the extent permitted by Applicable Laws or any protective or confidentiality order entered by such court or patent office, and shall consider in good faith all timely reasonable comments thereto by Licensee before filing such papers. Licensee shall be entitled to separate representation in such matter by counsel of its own choice and at its own expense.
(iii)
As between the Parties, Innovent will have the first right, but not the obligation, to bring and control any alleged or threatened Product Infringement that involves (A) the Innovent Platform Patents worldwide or (B) Licensed Product Specific Patents in the Innovent Territory, in each case, at its own expense and by counsel of its own choice.
(iv)
If any alleged or threatened Product Infringement involves any Joint Patent, the Parties will discuss in good faith and agree upon the appropriate allocation between the Parties of the responsibility to bring and control any other action or proceeding regarding such Product Infringement.
(c)
Other Infringement. As between the Parties, (i) Innovent shall have the sole right, but not the obligation, to bring and control any other action or proceeding regarding alleged or threatened Infringement of any Licensed Patent that is not a Product Infringement, at its own expense and by counsel of its own choice, and (ii) the Parties shall jointly determine which Party, if either, shall bring and control any other action or proceeding regarding alleged or threatened Infringement of a Joint Patent that is not a Product Infringement, and the Parties’ respective responsibilities for the expense thereof.
(d)
Cooperation. In the event a Party brings an infringement action in accordance with this Section 14.5, the other Party will cooperate fully, at the enforcing Party’s request and expense, including, if required to bring such action, the furnishing of a power of attorney or being named as a party. The enforcing Party will not enter into any settlement or compromise of any action under this Section 14.5: (i) in a manner that would diminish the rights or interests of the other Party with respect to the Licensed Products (and, in the case of Innovent, the Innovent Platform) without the written consent of such other Party, which will not be unreasonably withheld, conditioned or delayed; (ii) that would impose any cost or liability on the other Party without the written consent of such other Party; or (iii) that would admit the invalidity or unenforceability of any Patent that is Controlled by the other Party, without such other Party’s prior written consent, which may be withheld in such other Party’s sole discretion.
(e)
Recoveries. Except as otherwise agreed by the Parties in connection with a cost-sharing arrangement, any recovery as a result of any action or proceeding pursuant to Section 14.5, whether by way of settlement or otherwise, will first be used to reimburse the enforcing Party for its documented, Out-of-Pocket Costs (including court, attorneys’ and professional fees) incurred in connection with such action or proceeding, and then to reimburse the other Party for its documented, Out-of-Pocket Costs (including court, attorneys’ and professional fees) incurred in connection with such action or proceeding (to the extent not previously reimbursed by the enforcing Party), and any remainder of the recovery after reimbursement of the litigation costs and

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expenses of the Parties, will be retained by the enforcing Party; provided that, any recoveries retained by Licensee in connection with the enforcement of Licensed Product Specific Patents or Joint Patents that involves Product Infringement in the Licensee Territory shall be deemed Net Sales for the purpose of Section 10.6.
(f)
Patent Marking. Each Party will mark (or cause to be marked) the Licensed Products marketed and sold in such Party’s respective territory hereunder with appropriate Patent numbers or indicia to the extent required by Applicable Laws.

14.6 Patent Listing. Licensee shall have the sole and exclusive right to make all patent listings (such as the FDA Orange Book, Purple Book and any foreign equivalent) of any Licensee Controlled Patents with respect to any Licensed Product in the Licensee Territory. Innovent shall have the sole and exclusive right to make all patent listings of any Innovent Controlled Patent with respect to any Licensed Product in the Innovent Territory and of any Innovent Platform Patents worldwide.

14.7 Patent Term Extension. As between the Parties, with respect to each Licensed Product, Licensee shall have the sole right to apply for any patent term extensions (including supplementary protection certificates) in the Licensee Territory for the Licensee Controlled Patents and Innovent shall have the sole right to apply for any patent term extensions (including supplementary protection certificates) in the Innovent Territory for the Innovent Controlled Patents. If Licensee, with respect to a Licensed Product, wishes Innovent to apply for patent term extensions for an Innovent Controlled Patent, Licensee shall promptly notify Innovent in writing, in which case the Parties will discuss such proposal within [***] after such notice is received by Innovent; provided that Innovent, after considering Licensee’s request in good faith, shall have the right to decline any such request to apply for a patent term extension (including a supplementary protection certificates) for an Innovent Controlled Patent. Innovent shall have the sole right to apply for any patent term extensions (including supplemental protection certificates) worldwide for any Innovent Platform Patents.

14.8 CREATE Act. It is the Parties’ intention that this Agreement is a “joint research agreement” as that phrase is defined in 35 U.S.C. § 102(c) as amended by the Cooperative Research and Technology Enhancement (CREATE) Act, including the provisions of 35 U.S.C. § 102(b)(2)(c). The Parties agree to cooperate and to take reasonable actions to maximize the protections available for Licensed Compounds and Licensed Products under such safe harbor provisions.

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ARTICLE 15

TERM AND TERMINATION

15.1 Term and Expiration.

(a)
Term. The term of this Agreement will be effective as of the Effective Date, and will continue in effect until the expiration of the last Royalty Term with respect to all Licensed Products in any country in the Licensee Territory (the “Term”).
(b)
Effect of Expiration of Royalty Term. On a Licensed Product-by-Licensed Product and country-by-country basis, upon the expiration of the Royalty Term for a given Licensed Product in a given country in the Licensee Territory, the licenses granted by Innovent to Licensee under Section 3.1 of this Agreement in such country with respect to such Licensed Product will become fully paid-up, perpetual, irrevocable, sublicensable (through multiple tiers) and royalty-free. Such licenses shall remain exclusive or non-exclusive as set forth in Section 3.1 until the later of (i) the date that is [***] after the end of the Calendar Quarter in which the first sale of the first Biosimilar Product by a Third Party with respect to such Licensed Product occurs in such country, or (ii) the end of the first Calendar Quarter in which the Net Sales of such Licensed Product in such country are less than [***] percent ([***] %) of the average Net Sales of such Licensed Product in such country in the two consecutive Calendar Quarters immediately prior to the Calendar Quarter in which the first sale of such first Biosimilar Product by a Third Party occurs in such country. Thereafter, such licenses granted by Innovent to Licensee under Section 3.1 of this Agreement in such country with respect to such Licensed Product will convert to non-exclusive, fully paid-up, perpetual, irrevocable, sublicensable (through multiple tiers) and royalty-free.

15.2 Termination for Mutual Agreement. This Agreement may be terminated in its entirety at any time by the Parties’ mutual written agreement.

15.3 Termination for Convenience. Licensee may terminate this Agreement in its entirety upon ninety (90) days’ prior written notice to Innovent at any time prior to a First Commercial Sale, and upon one hundred and fifty (150) days’ prior written notice to Innovent at any time following a First Commercial Sale.

15.4 Termination for Material Breach.

(a)
If either Party believes that the other Party is in material breach of this Agreement, then the non-breaching Party may deliver notice of such material breach to the other Party (“Breach Notice”). The allegedly breaching Party shall have [***] from the receipt of the Breach Notice (the “Cure Period”) to cure such material breach. If such breach is not susceptible of cure within the original [***] of the Cure Period, but such breach is reasonably susceptible of cure within [***] and the allegedly breaching Party is using Commercially Reasonable Efforts to cure such Breach, then such Cure Period shall be extended for an additional [***]. If the Party receiving notice of material breach fails to cure that material breach within the Cure Period, then the Party delivering the notice of material breach may terminate this Agreement in its entirety upon written notice to the other Party. Notwithstanding the foregoing, the foregoing Cure Period shall not apply to breach of Section 5.2(b), and Innovent shall have the right to terminate this Agreement immediately upon written notice to Licensee if Licensee breaches Section 5.2(b).

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If the allegedly breaching Party reasonably and in good faith disagrees as to whether there has been a material breach of this Agreement, such allegedly breaching Party may provide the other Party with written notice of such disagreement within [***] following receipt of the Breach Notice. Following a timely notice of disagreement, (i) the other Party will not have the right to terminate this Agreement under Section 15.4(a) unless and until it has been determined, in accordance with Article 16, that the allegedly breaching Party has materially breached this Agreement and such breaching Party fails to cure such breach within the period for cure determined in such dispute resolution, (ii) during the pendency of such dispute resolution process, the relevant Cure Period with respect to such alleged material breach will be tolled from the date the allegedly breaching Party provides the other Party with notice of such Dispute until the resolution of such Dispute in accordance with Article 16, provided that for any Dispute regarding payment, such tolling of the Cure Period will only apply with respect to the payment of the disputed amounts and not with respect to any undisputed amounts, and (iii) during the pendency of such dispute resolution process, all of the terms and conditions of this Agreement will remain in effect, and the Parties will continue to perform all of their respective obligations under this Agreement.

(b)
Termination for Insolvency. Each Party has the right to terminate this Agreement in its entirety upon delivery of written notice to the other Party in the event that (i) such other Party files in any court or agency pursuant to any statute or regulation of any jurisdiction a petition in bankruptcy or insolvency or for reorganization under the United States Bankruptcy Code or other similar Applicable Laws or similar arrangement for the benefit of creditors or for the appointment of a receiver or trustee of such other Party or its assets, (ii) such other Party is served with an involuntary petition against it in any insolvency proceeding and such involuntary petition has not been stayed or dismissed within [***] of its filing, or (iii) such other Party makes an assignment of substantially all of its assets for the benefit of its creditors.

15.5 Termination for Certain Licensee Actions.

(a)
Termination for Cessation of Development or Commercialization in the Licensee Territory. A Shelving Event shall constitute a material breach of this Agreement. Upon the occurrence of a Shelving Event, Innovent may terminate this Agreement subject to the notice and cure provisions of Section 15.4.
(b)
Termination for Patent Challenge. Except to the extent unenforceable under Applicable Law, if Licensee or its Affiliates or Sublicensees contests or Assists a Third Party in contesting the scope, validity, or enforceability of any Licensed Patent anywhere in the world in any court, tribunal, arbitration proceeding, or other proceeding, including the U.S. Patent and Trademark Office and the U.S. International Trade Commission (a “Patent Challenge”), then Innovent shall have the right to terminate this Agreement on [***] written notice to Licensee. Innovent shall have no right to terminate this Agreement pursuant to this Section 15.5(b) if: (i) Licensee or its Affiliate or Sublicensee is challenging the validity, enforceability, or patentability of the applicable Licensed Patent as part of a defense or counterclaim against a claim that Licensee or its Affiliate or Sublicensee is infringing such Licensed Patent; (ii) such proceedings are commenced or Assisted by a Sublicensee, and (A) such Sublicensee withdraws such challenge within [***] after being requested to do so by Innovent in writing, or (B) Licensee or its Affiliate terminates such Sublicensee’s sublicense hereunder within [***] after Innovent notifies Licensee in writing of such proceeding; (iii) such proceedings are commenced or Assisted by an Affiliate

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of Licensee that first becomes such an Affiliate as a result of an acquisition of all or any part of Licensee or any of its Affiliates, where such new Affiliate was participating in such proceedings prior to such acquisition and where such new Affiliate withdraws such challenge within [***] after being requested to do so by Innovent in writing; (iv) Licensee is responding to a court request, subpoena, or order, or an administrative agency request or order, or the applicable proceedings are initiated by a patent office and not at the instigation of Licensee or any of its Affiliates or Sublicensees; or (v) Licensee or its applicable Affiliate or Sublicensee is merely making arguments that distinguish the inventions claimed in a Patent controlled by Licensee or its applicable Affiliate or Sublicensee from those claimed in any Licensed Patent in the ordinary course of ex parte prosecution of such Patents.

15.6 Licensee Alternative to Termination. If Licensee has the undisputed right under Section 15.4(a) to terminate this Agreement as a result of the material breach of this Agreement by Innovent of any of the following Sections: 3.1 (License Grant to Licensee); 3.6(b) (Innovent Non-Compete); 4.1 (Technology Transfer); 8.1(b)(ii) (Initial Supply by Innovent); 12.1(a), 12.1(b), 12.1(c) or 12.1(d) (Representations and Warranties of Each Party); 12.2(a), 12.2 (c), 12.2(d), 12.2(e), 12.2(g), 12.2(h) or 12.2(i) (Additional Representations and Warranties of Innovent); or 12.4(a), 12.4(b) or 12.4(c) (Covenants), that has a material adverse impact on the value of the rights and licenses granted to Licensee under this Agreement, then Licensee may, in lieu of such termination, elect for this Agreement to remain in full force and effect by notifying Innovent of such election within [***] of the end of the applicable Cure Period. If Licensee makes such election, then all Licensee’s payment obligations under Article 10 on and after the date of such election shall be reduced by [***] percent ([***]%). Licensee’s exercise of such remedy shall be its sole and exclusive remedy, and Innovent’s sole liability, for damages or other harm caused by the material breach by Innovent giving rise to Licensee’s termination right.

15.7 Effects of Termination. Upon the termination (but not expiration) of this Agreement for any reason, the provisions of this Section 15.7 will apply.

(a)
Termination of Licenses. All rights and licenses granted by Innovent to Licensee herein will immediately terminate and will revert back to Innovent, and all sublicenses of such rights and licenses granted by Licensee will terminate, except as provided in this Section 15.7. In addition to the foregoing:
(b)
Reversion License. Upon any termination of this Agreement, Innovent may, by written request to Licensee delivered within [***] after the effective date of such termination, either elect to (i) receive a non-exclusive license, or (ii) negotiate with Licensee for an exclusive license from Licensee, in each case under the Grant-Back Technology solely to Exploit Terminated Product(s) (the “Reversion License”), in each case subject to the terms set forth in Section 15.7(c).
(c)
Reversion Terms. If Innovent timely elects to receive a non-exclusive Reversion License under Section 15.7(b), such Reversion License shall be fully paid-up and royalty-free. If Innovent timely notifies Licensee of its desire to receive an exclusive Reversion License under Section 15.7(b), the Parties will negotiate in good faith for a period of [***] following the effective date of such election to agree on commercially reasonable financial terms for such exclusive Reversion License (the “Reversion Terms”); provided that, in determining the

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amount of consideration payable by Innovent to Licensee pursuant to the Reversion Terms, the Parties will take into account, among other things, (i) the stage of Development or Commercialization of the Terminated Products in the Licensee Territory, (ii) the scope of the Grant-Back Technology subject to the Reversion License, and (iii) the relative value of the Know-How and Patents included in the Grant-Back Technology that is subject to the Reversion License and any other Patents and Know-How that are necessary to Exploit the Terminated Products in the Licensee Territory. If the Parties are unable to agree upon such Reversion License terms within [***] after the effective date of termination, then the Reversion Terms shall be determined through binding baseball arbitration in accordance with the procedure set forth in Exhibit 15.7(c). Innovent acknowledges and agrees that if the licenses granted by Licensee to Innovent under Section 15.7(b) and this Section 15.7(c) with respect to Grant-Back Technology constitute sublicenses under upstream license agreements between Licensee or any of its Affiliates, on the one hand, and Third Party licensors, on the other hand, and Innovent provides a written request to Licensee to include such sublicenses as part of the Reversion License then such licenses under Section 15.7(b) and this Section 15.7(c) shall be subject and subordinate to all applicable provisions of such upstream license agreements and Innovent shall be responsible for paying to Licensee any royalty, milestone and other license fee amounts thereunder reasonably attributable to Innovent’s sublicense thereunder; provided that, (i) Innovent may elect not to receive a sublicense under any such Grant-Back Technology and such Grant-Back Technology shall not be sublicensed to Innovent under Section 15.7(b) or this Section 15.7(c) unless and until Innovent has agreed to the foregoing obligations and (ii) if Innovent provides a written request to Licensee to include such sublicenses as part of the Reversion License but the Parties are unable to agree upon the royalty, milestone and other license fee amounts thereunder reasonably attributable to Innovent’s sublicense (“Reversion Sublicense Terms”), then such matter shall be determined through binding baseball arbitration in accordance with the procedure set forth in Exhibit 15.7(c).
(d)
Inventory. Upon termination of this Agreement in its entirety, Licensee and its Affiliates and its or their Sublicensee(s) will have the right to sell or otherwise dispose of all inventory of Terminated Products in all countries then in its stock for up to [***], subject to the milestone and royalty payments due under this Agreement and any other applicable provisions of this Agreement. If, after such [***] period, Licensee and its Affiliates and its or their Sublicensee(s) have any remaining inventory of Terminated Products, Innovent will have the right to purchase in its sole discretion such Terminated Products at Licensee’s cost of goods, as calculated on a consistent basis according to Licensee’s then-current accounting standards. If Innovent declines to purchase such remaining Terminated Products, Licensee and its Affiliates and its or their Sublicensee(s) will destroy such remaining inventory of Terminated Products at Licensee’s sole cost and expense.
(e)
Sublicenses. As of the effective date of termination, unless otherwise agreed to by Innovent in writing (in its sole discretion), all sublicenses (including through multiple tiers) then in effect with any Sublicensee shall be terminated automatically.

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(f)
Return of Confidential Information. Upon termination of this Agreement in its entirety, at the Disclosing Party’s election, the Receiving Party will return (at Disclosing Party’s expense) or destroy all tangible materials comprising, bearing, or containing any Confidential Information of the Disclosing Party that are in the Receiving Party’s or its Affiliates’ or Sublicensees’ possession or control and provide written certification of such destruction (except to the extent any information is the Confidential Information of both Parties or to the extent that the Receiving Party has the continuing right to use the Confidential Information under this Agreement); provided that the Receiving Party may retain one copy of such Confidential Information for its legal archives and with respect to Innovent, Innovent may retain copies of such Confidential Information in order to exercise its rights under the Reversion License. Notwithstanding anything herein to the contrary, the Receiving Party will not be required to destroy electronic files containing such Confidential Information that are made in the ordinary course of its business information back-up procedures pursuant to its electronic record retention and destruction practices that apply to its own general electronic files and information.

15.8 Other Remedies. Termination or expiration of this Agreement for any reason will not constitute a waiver or release of, or otherwise be deemed to prejudice or adversely affect, any rights, remedies or claims, whether for damages or otherwise, that a Party may have hereunder or that may arise out of or in connection with such termination or expiration.

15.9 Survival. Termination or expiration of this Agreement will not affect any rights or obligations of the Parties under this Agreement that have accrued prior to the date of termination or expiration. The following provisions will survive the termination or expiration of this Agreement for any reason: Articles 1, Article 11, 13, 16, 17, and Sections 3.1(c), 3.1(d), 3.1(e), 3.2(x), 3.2(y), 3.2(z), 5.5, 10.8, 10.10, 12.5, 14.1, 15.1, 15.7, 15.8 and 15.9.

ARTICLE 16

DISPUTE RESOLUTION

16.1 General. Except for any matter subject to resolution in accordance with Section 2.2(e)(iii), the Parties agree that any claim, dispute or controversy between the Parties or any of their Affiliates arising from, relating to or in connection with this Agreement, including with respect to its formation, applicability, breach, termination, enforcement, interpretation or validity (a “Dispute”), will be resolved in accordance with this Article 16.

16.2 Construction. Except where the context expressly requires otherwise, (a) the use of any gender herein will be deemed to encompass references to either or both genders, and the use of the singular will be deemed to include the plural (and vice versa), (b) the words “include”, “includes” and “including” will be deemed to be followed by the phrase “without limitation”, (c) the word “will” will be construed to have the same meaning and effect as the word “shall”, (d) any definition of or reference to any agreement, instrument or other document herein will be construed as referring to such agreement, instrument or other document as from time to time amended, supplemented or otherwise modified (subject to any restrictions on such amendments, supplements or modifications set forth herein), (e) any reference herein to any person will be construed to include the person’s successors and assigns, (f) the words “herein”, “hereof” and “hereunder”, and words of similar import, will be construed to refer to this Agreement in its entirety and not to any particular provision hereof, (g) all references herein to Sections or Exhibits will be construed to

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refer to Sections or Exhibits as described in this Agreement, (h) the word “notice” means notice in writing (whether or not specifically stated), (i) provisions that require that a Party, the Parties or any committee hereunder “agree”, “consent” or “approve” or the like will require that such agreement, consent or approval be specific and in writing, whether by written agreement, letter, approved minutes or otherwise (but excluding e-mail and instant messaging), (j) references to any specific law, rule or regulation, or section or other division thereof, will be deemed to include the then-current amendments thereto or any replacement or successor law, rule or regulation, and (k) the term “or” will be interpreted in the inclusive sense commonly associated with the term “and/or” where applicable.

16.3 Escalation. Either Party, through the delivery of written notice, may refer any Dispute to the Senior Executives for attempted resolution. In the event the Senior Executives are unable to resolve such Dispute within [***] following the delivery of such written notice, then, upon the written request of either Party to the other Party (“Dispute Referral”), the Dispute will be subject to further resolution in accordance with Section 16.4 or Section 16.5, as applicable.

16.4 Arbitration.

(a)
General. If either Party delivers a Dispute Referral under Section 16.3 for a matter that is subject to arbitration under this Section 16.4, the Dispute will be submitted by the Parties for final resolution by arbitration under the Rules of Arbitration of the International Chamber of Commerce (ICC) (the “ICC Rules”) in effect at the time of the arbitration, except as modified herein. Any disputes concerning the propriety of the commencement of the arbitration or the scope or applicability of this Agreement to arbitrate will be finally settled by the arbitral tribunal. The arbitration will be conducted by a tribunal of three arbitrators. Within the time provided in the ICC Rules, each Party will nominate one arbitrator with appropriate experience, and the two Party-nominated arbitrators will nominate a third arbitrator with appropriate experience, who will serve as the chairperson of the tribunal, within [***] of the second arbitrator’s confirmation or appointment. The seat of arbitration will be New York and the language of the proceedings, including all communications, will be English.
(b)
Binding Decision. The arbitral award will be final and binding on the Parties and the Parties undertake to carry out any award without delay. Judgment on the award may be entered in any court of competent jurisdiction. The Parties will make reasonable efforts to require the arbitral tribunal to render its final award within [***] from the date on which the ICC Secretariat transmits the arbitration file to the arbitral tribunal. The arbitral tribunal will resolve the Dispute by applying the provisions of this Agreement and the governing law set forth in Section 17.1.
(c)
Interim Measures. By agreeing to arbitration, the Parties do not intend to deprive any court of its jurisdiction to issue, at the request of a Party, a pre-arbitral injunction, pre-arbitral attachment or other order of interim relief to avoid irreparable harm, maintain the status quo, preserve the subject matter of the Dispute, or aid the arbitration proceedings and the enforcement of any award, including after constitution of the arbitral tribunal. Without prejudice to such provisional or interim remedies in aid of arbitration as may be available under the jurisdiction of a competent court, the arbitral tribunal has full authority to grant provisional or interim remedies and to award damages for the failure of any Party to the dispute to respect the arbitral tribunal’s order to that effect.

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(d)
Waiver of Jury Trial. EACH PARTY HERETO WAIVES ANY RIGHT TO TRIAL OF ANY ISSUE BY JURY.
(e)
Limitation of Damages. The arbitral tribunal is authorized to award compensatory damages, but is not authorized to (i) award non-economic damages, (ii) award punitive damages or any other damages expressly excluded under this Agreement, or (iii) reform, modify or materially change this Agreement or any other agreements contemplated hereunder. Each Party will bear its own attorneys’ fees, costs, and disbursements arising out of the arbitration, and will pay an equal share of the fees and costs of the administrator and the arbitrators; provided that the arbitrators will be authorized to determine whether a Party is the prevailing Party, and if so, to award to that prevailing Party reimbursement for any or all of its reasonable attorneys’ fees, costs and disbursements (including, for example, expert witness fees and expenses, photocopy charges, and travel expenses), or the fees and costs of the administrator and the arbitrators.
(f)
Confidentiality. The existence, content, and results of an arbitration will be treated as Confidential Information of both Parties. Except as required by Applicable Law, including any disclosure or filing reasonably necessary to comply with the rules and regulations of any Securities Regulator, or as necessary for recognition and enforcement of the arbitral decision and award, neither a Party nor an arbitrator may disclose the existence, content or results of any arbitration hereunder without the prior written consent of the Parties. Any documents submitted to the arbitrators will be kept confidential and will not be disclosed, except that any such documents may be disclosed (i) as necessary in connection with any action to enforce or collect the award or (ii) to the extent discoverable or admissible in any action arising out of or in connection with this Agreement. The Parties do not consent to the ICC publishing any form of an award or of an order issued by the arbitral tribunal.

16.5 Certain Disputes. Notwithstanding any provision to the contrary set forth in Section 16.4, in the event of a Dispute with respect to (a) the validity, scope, enforceability or ownership of any Patent or other intellectual property rights, or (b) any antitrust, anti-monopoly or competition law or regulation, whether or not statutory, and such Dispute is not resolved in accordance with Section 16.3, such Dispute will not be submitted to an arbitration proceeding in accordance with Section 16.4, unless otherwise agreed by the Parties in writing, and instead, either Party may initiate litigation in a court of competent jurisdiction.

ARTICLE 17

MISCELLANEOUS

17.1 Governing Law. This Agreement will be governed by and construed in accordance with the laws of the State of New York, without reference to any rules of conflict of laws that may result in the application of the laws of a different jurisdiction.

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17.2 Force Majeure. Neither Party will be held liable to the other Party nor be deemed to have defaulted under or breached this Agreement for failure or delay in performing any obligation under this Agreement to the extent such failure or delay is caused by or results from causes beyond the reasonable control of the affected Party, including embargoes, war, acts of war (whether war be declared or not), insurrections, riots, civil commotions, strikes, lockouts or other labor disturbances, fire, floods, pandemics, epidemics, quarantines, or other acts of God or any other deity (or orders of any Governmental Authority related to any of the foregoing), or acts, omissions or delays in acting by any Governmental Authority. The affected Party will notify the other Party of such force majeure circumstances as soon as reasonably practical, the JSC will review and discuss any such matter and the affected Party will promptly undertake Commercially Reasonable Efforts necessary to cure such force majeure circumstances.

17.3 Performance by Affiliates. Notwithstanding any provision to the contrary set forth in this Agreement, each Party will have the right to perform any or all of its obligations and exercise any or all of its rights under this Agreement through any Affiliate. Each Party hereby guarantees the performance by its Affiliates of its obligations under this Agreement and will cause its Affiliates to comply with the provisions of this Agreement in connection with such performance. Any breach by a Party’s Affiliate of any of such Party’s obligations under this Agreement will be deemed a breach by such Party, and the other Party may proceed directly against such Party without any obligation to first proceed against such Party’s Affiliate.

17.4 Assignment. Neither Party may assign this Agreement without the other Party’s prior written consent (such consent not to be unreasonably withheld, conditioned or delayed); except that (a) either Party may make such an assignment without such consent to a Third Party successor to all or substantially all of the business or assets of such Party to which this Agreement relates (whether by merger, sale of stock, sale of assets or otherwise), and (b) either Party may assign this Agreement without such consent to an Affiliate. Any attempted assignment or transfer in violation of this Section 17.4 (Assignment) will be null and void. Subject to the foregoing, this Agreement will be binding on and inure to the benefit of the Parties and their respective successors and permitted assigns.

17.5 Severability. If any one or more of the provisions contained in this Agreement is held invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein will not in any way be affected or impaired thereby, unless the absence of the invalidated provision(s) adversely affects the substantive rights of the Parties. The Parties will in such an instance use their best efforts to replace the invalid, illegal or unenforceable provision(s) with valid, legal and enforceable provision(s) which, insofar as practical, implement the purposes of this Agreement.

17.6 Notices. All notices which are required or permitted hereunder will be in writing and sufficient if delivered personally, sent by email or facsimile (and promptly confirmed by personal delivery, registered or certified mail or overnight courier), sent by nationally-recognized

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overnight courier or sent by registered or certified mail, postage prepaid, return receipt requested, addressed as follows:

 

 

If to Innovent:

 

 

 

Innovent Biologics (Suzhou) Co., Ltd.

 

 

168 Dongping Street

 

 

Suzhou Industrial Park

 

 

Jiangsu 215123, China

 

 

Attention: [***]

 

 

E-mail: [***]

 

 

With a copy (which shall not constitute notice) to:

 

 

 

 

 

Innovent Biologics (Suzhou) Co., Ltd.

 

 

Attention: General Counsel

 

 

E-mail: [***]

 

 

 

 

 

with a copy (which shall not constitute notice) to:

 

 

 

 

 

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

 

 

One Financial Center

 

 

Boston, MA 02111

 

 

Attn: [***]

 

 

[***]

 

 

 

 

If to Licensee:

 

 

 

Spero Therapeutics, Inc.

 

 

675 Massachusetts Avenue, 14th Floor

 

 

Cambridge, Massachusetts 02139

 

 

United States

 

 

Attention: Chief Executive Officer

 

 

E-mail: [***]

 

 

 

 

 

with copies (which shall not constitute notice) to:

 

 

 

 

 

Spero Therapeutics, Inc.

 

 

Attention: Head of Legal

 

 

E-mail: [***]

 

 

 

 

 

Wilmer Cutler Pickering Hale and Dorr LLP

 

 

60 State Street

 

 

Boston, MA 02109

 

 

United States

 

 

Attn: Steven D. Barrett

 

 

steven.barrett@wilmerhale.com

 

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or to such other address as the Party to whom notice is to be given may have furnished to the other Party in writing in accordance herewith. Any such notice will be deemed to have been given: (a) when delivered if personally delivered; (b) if sent by email, upon electronic confirmation of receipt; (c) on the Business Day after dispatch if sent by nationally recognized overnight courier; or (d) on the fifth Business Day following the date of mailing if sent by mail.

17.7 Entire Agreement; Amendments. The Agreement contains the entire understanding of the Parties with respect to the subject matter hereof. All express or implied agreements and understandings, either oral or written, with regard to the subject matter hereof (including the licenses granted hereunder), including the Confidentiality Agreement, are superseded by the terms of this Agreement. Neither Party is relying on any representation, promise, or warranty not expressly set forth in this Agreement. This Agreement may be amended, or any term hereof modified, only by a written instrument duly executed by authorized representatives of both Parties hereto. To the extent there is any conflict between the terms of this Agreement and the terms of the Pharmacovigilance Agreement, the Supply Agreement or a Quality Agreement (each, an “Ancillary Agreement”), the terms of such Ancillary Agreement will control solely with respect to the primary subject matter thereof, and the terms of this Agreement will control otherwise.

17.8 Headings. The captions to the several Sections hereof are not a part of this Agreement, but are merely for convenience to assist in locating and reading the Sections of this Agreement.

17.9 Independent Contractors. It is expressly agreed that Innovent and Licensee will be independent contractors and that the relationship between the two Parties will not constitute a partnership, joint venture or agency. Neither Innovent nor Licensee has the authority to make any statements, representations or commitments of any kind, or to take any action, which will be binding on the other Party, without the prior written consent of the other Party. Nothing contained in this Agreement shall be deemed or construed by the Parties, any of their Affiliates or any Third Party to treat the relationship between the Parties contemplated by this Agreement as a partnership, joint venture or other business entity under Treasury Regulations Section 301.7701 1(a)(2) (or any corresponding provision under state, local or non U.S. tax law) (an “Entity”). No Party (or successor or assignee) intends, for Tax purposes, on reporting the relationships established by this Agreement as an Entity, including either (a) making any disclosure that the relationships established by this Agreement may give rise to an Entity (whether on a U.S. Internal Revenue Service Form 8275 or otherwise) or (b) withholding any amounts from payments made to the other Party pursuant to Section 1446 of the Code (or any corresponding provision under state, local or non U.S. tax law), unless required by a Governmental Authority on audit or other examination. Notwithstanding the foregoing, if the arrangement between the Parties as contemplated by this Agreement is determined to constitute an Entity under Applicable Law (as determined based on the opinion (on a “should” basis) of a nationally recognized law or accounting firm) or by a Governmental Authority on audit or other examination, the Party that is aware of such determination shall provide notice to the other Party regarding such treatment and the Parties will reasonably cooperate with one another to satisfy any tax filing or reporting obligation arising as a result of such determination, including by providing any information, forms or other certifications necessary to satisfy such obligations.

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17.10 Waiver. The waiver by either Party of any right hereunder, the failure of the other Party to perform, or a breach by the other Party will not be deemed a waiver of any other right hereunder or of any other breach or failure by such other Party, whether of a similar nature or otherwise. No waiver shall be binding unless in writing and signed by the waiving Party.

17.11 Waiver of Rule of Construction. Each Party has had the opportunity to consult with counsel in connection with the review, drafting and negotiation of this Agreement. Accordingly, the rule of construction that any ambiguity in this Agreement will be construed against the drafting Party will not apply.

17.12 Counterparts. This Agreement may be executed in two or more counterparts, each of which will be deemed an original, but all of which together will constitute one and the same instrument. Each Party will be entitled to rely on the delivery of executed electronic or PDF copies of counterpart execution pages of this Agreement and such electronic or PDF copies will be legally effective to create a valid and binding agreement among the Parties.

17.13 Language. This Agreement is in the English language only, which language will be controlling in all respects, and all versions hereof in any other language will be for accommodation only and will not be binding upon the Parties. All communications and notices to be made or given pursuant to this Agreement, and any dispute or other proceeding related to or arising hereunder, will be in the English language.

[Signature Page Follows]

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IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed by their duly authorized representatives as of the Effective Date.

 

Innovent Biologics (Suzhou) Co., Ltd.

 

Spero Therapeutics, Inc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

By:

/s/ De-chao Michael Yu

 

By:

 /s/ Esther Rajavelu

 

 

 

 

 

 

 

 

 

Name: De-chao Michael Yu

 

Name:

Esther Rajavelu

 

 

 

 

 

 

 

 

Title: Director

 

Title:

Chief Executive Officer and

 

 

 

 

President

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fortvita Biologics (USA), Inc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

By:

/s/ De-chao Michael Yu

 

 

 

 

 

 

 

 

 

 

Name:

De-chao Michael Yu

 

 

 

 

 

 

 

 

 

 

Title:

Director

 

 

 

 

 

[Signature Page to Collaboration and License Agreement]

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Exhibit 8.1(b)

Supply Agreement Material Terms

The Supply Agreement to be negotiated and entered into by and between Licensee and Innovent pursuant to Section 8.1(b) of this Agreement will contain, among others, the key terms provided in the table below. In this table, capitalized terms have the meanings set forth in this Agreement.

 

Category

Key Terms

Supply for Licensee Territory

Subject to the terms of the Supply Agreement, Innovent, itself or through its Affiliates or its CMO(s) (“Supplier”), will Manufacture Licensed Compounds and Licensed Products for use by Licensee and its Affiliates and Sublicensees in Development (including use in Clinical Trials) in and for the Licensee Territory. Licensee will purchase, and Innovent will supply, such quantities of Licensed Compounds and Licensed Products required by Licensee and its Affiliates and Sublicensees for such Development (including use in Clinical Trials) in the Licensee Territory.

Delivery:

Deliveries of Licensed Compounds and Licensed Products in unlabeled bottles to Licensee will be made FCA (INCOTERMS 2020) [***]. Licensee or its Affiliates or Sublicensees will be responsible for packaging and labeling Licensed Products for use in Clinical Trials in accordance with Applicable Laws at their own expense.

Supplier will supply Licensed Products released for delivery by Supplier in accordance with the procedures to be set forth in the Quality Agreement, including any required documentation (e.g., certificate of analysis), or, with respect to any supply prior to execution of the Quality Agreement, in accordance with Innovent’s standard procedures.

Specifications:

The specifications for Licensed Products supplied pursuant to the Supply Agreement will be set forth in the Quality Agreement entered into in connection with the Supply Agreement, or, with respect to any supply prior to execution of the Quality Agreement, such specifications as the Parties have agreed in writing (the “Specifications”).

Warranty:

Supplier will warrant that, as of the delivery date (to be defined in Supply Agreement), the Licensed Products (a) conform to the Specifications and other quality requirements set out in the Supply Agreement and the Quality Agreement, as applicable, (b) are not adulterated or misbranded, and (c) are free and clear of any security interest, lien or other encumbrance.

Price:

The price of Licensed Compounds Licensed Products will be [***]% of Supplier’s Cost of Goods for such Licensed Compounds and Licensed Products supplied for Development purposes. Supplier will invoice Licensee for the price of Licensed Compounds and Licensed Products concurrently with delivery, which invoices shall be payable within [***] after receipt of

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Category

Key Terms

 

invoice. The Parties acknowledge that, as of the Effective Date, Innovent’s current estimate of Cost of Goods for the supply of Licensed Compounds and Licensed Products under this Exhibit 8.1(b), is set forth below:

 

USD $

Batch size/
Specification

COGS range

 

COGS

per

batch

[***]

[***]

[***]

 

[***]

[***]

[***]

 

[***]

[***]

[***]

 

COGS per vial

[***]

[***]

 

 

Notes:

1. Provided COGS are estimated based on current BOM and process specifications;

2. Outsourced pricing is based on current quotation and subject to fluctuation based on sales volume;

3. The COGS will vary with different capacity utilization rates;

4. The COGS are not committed and are not used for CDMO service.

Cost of Goods” means, in respect of the Licensed Compound or Licensed Product, the fully absorbed cost as calculated in a manner consistent with Applicable Accounting Standards, including the costs of materials and other resources consumed, direct labor, quality assurance costs, equipment maintenance costs, and other costs variable with production, plus an appropriate allocation of the indirect labor, relevant depreciation and amortization, facilities’ utilities, insurance, fixed overhead and other fixed costs, and freight into or between sites in the supply chain, in each case specifically allocable to the Licensed Compound or Licensed Product, but excluding any profit made by Innovent or any of its Affiliates through the application of transfer pricing. To the extent that Licensed Product is sourced from a CMO, COGS shall include the actual invoiced price paid by Innovent to such CMO for the Manufacture of such Licensed Product.

Forecast:

 

 

 

 

 

 

 

 

 

2


 

Category

Key Terms

 

 

Item

Initial Supply

Timeline (Product Released and available for Shipment to Licensee)

 

 

1

[***]

[***]

 

 

2

[***]

[***]

 

 

3

[***]

[***]

 

 

4

[***]

[***]

 

 

5

[***]

[***]

 

 

Other Support Services:

 

To the extent the Parties agree on any Manufacturing support services to be provided by Supplier, the Parties will detail such services in the Supply Agreement.

Governing Law:

The Supply Agreement will be governed by the laws of the State of New York, without reference to any rules of conflict of laws that may result in the application of the laws of a different jurisdiction.

Additional Terms:

The Supply Agreement will contain other reasonable and customary terms and conditions typical for supply from licensors to licensees, to be negotiated by the Parties, including procedures for acceptance and rejection of Licensed Products, indemnification and term and termination.

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Exhibit 15.7(c)

Procedures Applicable to Disagreements With Respect to Reversion Terms or Reversion Sublicense Terms

If the Parties are unable to agree upon the Reversion Terms and/or Reversion Sublicense Terms within [***] after the effective date of termination, then either Party shall have the right, upon written notice to the other Party (such notice, a “Baseball Arbitration Notice”), to refer such matter to an independent (i.e., not a current or former employee, officer, director, consultant or subcontractor of either Party or any of its Affiliates), impartial and conflict-free Third Party arbitrator who shall have at least [***] of experience in the biopharmaceutical industry and relevant subject matter expertise (a “Baseball Arbitrator”). The Baseball Arbitrator shall be mutually agreed to by the Parties; provided that if the Parties are unable to agree on a Baseball Arbitrator within [***] (or such other time period as may be agreed by the Parties) after a Party provides the other Party the Baseball Arbitration Notice, then each Party shall select one Baseball Arbitrator and those two Baseball Arbitrators will select the one Baseball Arbitrator within [***] thereafter. The Parties shall use their best efforts to cause the Baseball Arbitrator (mutually agreed by the Parties or selected by the two Baseball Arbitrators selected by the Parties, as applicable) to be selected and retained within [***] after a Party provides the other Party the Baseball Arbitration Notice.

Each Party shall submit to the Baseball Arbitrator (a) its proposal for the Reversion Terms and/or Reversion Sublicense Terms within [***] after the selection of the Baseball Arbitrator (“Proposed Resolution”) and (b) such other information as may be requested by the Baseball Arbitrator within [***] after such request. Each Party’s Proposed Resolution, and any additional information provided to the Baseball Arbitrator by such Party, shall be simultaneously provided to the other Party.

The Baseball Arbitrator will be instructed to select one or the other of the two Proposed Resolutions submitted by the Parties no later than [***] after the receipt of each Party’s Proposed Resolution (or if one Party does not submit its Proposed Resolution, then [***] after receipt of the submitted Proposed Resolution) and to select the Proposed Resolution that is most reasonable under the circumstances. The Baseball Arbitrator shall select only one of the Proposed Resolutions (without making any changes to such Proposed Resolution) and shall render such Proposed Resolution as the Baseball Arbitrator’s final decision. Notwithstanding anything to the contrary in this Agreement, the Baseball Arbitrator shall not have the authority to render any decision other than selecting one Proposed Resolution submitted by a Party pursuant to this Exhibit 15.7(c). The Baseball Arbitrator shall promptly notify the Parties of its determination in writing, and such decision shall be final and binding on the Parties. Each Party shall bear the costs and expenses of its Baseball Arbitrator and the costs and expenses of any Baseball Arbitrator agreed to by the Parties or selected by their Baseball Arbitrators shall be shared equally (50/50).

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Exhibit 10.5

 

Certain identified information has been excluded from the exhibit by marking such portions with brackets (“[***]”) because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential.

NEITHER THIS DEBT INSTRUMENT NOR THE NOTES ISSUED IN CONNECTION HEREWITH HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS. SUCH SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT PURPOSES AND MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT FILED UNDER SAID ACT AND ANY APPLICABLE STATE SECURITIES LAWS, UNLESS AN EXEMPTION FROM SUCH REGISTRATION IS AVAILABLE.

THE FOLLOWING INFORMATION IS PROVIDED PURSUANT TO TREAS. REG. SECTION 1.1275-3: THIS DEBT INSTRUMENT IS ISSUED WITH ORIGINAL ISSUE DISCOUNT. HOLDERS CAN OBTAIN INFORMATION REGARDING ISSUE PRICE, AMOUNT OF ORIGINAL ISSUE DISCOUNT, ISSUE DATE, AND YIELD TO MATURITY OF THIS DEBT INSTRUMENT BY CONTACTING THE TREASURER OF ISSUER AT: 675 Massachusetts Avenue, 14th Floor, Cambridge, MA 02139

NOTE PURCHASE AND GUARANTY AGREEMENT

Dated as of July 8, 2026

Between

SPERO SPV, LLC,

as Issuer,

SPERO HOLDINGS SPV, LLC,

as Holdings

and

HCR SPERO SPV, LLC,

as Purchaser Representative,

 


 

TABLE OF CONTENTS

 

Article I

CERTAIN DEFINITIONS

 

Section 1.01

Definitions

1

Section 1.02

Certain Interpretations

25

 

Article II

THE NOTES; PURCHASE AND SALE

 

Section 2.01

Purchase and Sale of Notes

26

Section 2.02

[Reserved]

26

Section 2.03

Purchase Price and Delivery

26

Section 2.04

No Right to Reborrow or Reissue

26

Section 2.05

Protective Advances

27

Section 2.06

Representations and Warranties of Purchasers

27

 

 

 

Article III

REPAYMENT

 

Section 3.01

Amortization; Scheduled Maturity Date

28

Section 3.02

Mandatory and Voluntary Prepayments

29

Section 3.03

Increased Cost

29

Section 3.04

Illegality

30

 

Article IV

INTEREST; EXPENSES; MAKING OF PAYMENTS

 

Section 4.01

Interest Rate

31

Section 4.02

Application of Payments

33

Section 4.03

Quarterly Payment Certificates

34

Section 4.04

Interest on Late Payments

35

Section 4.05

Administration and Enforcement Expenses

35

Section 4.06

Making of Payments

35

Section 4.07

Setoff or Counterclaim

35

 

Article V

TAXES

 

Section 5.01

Taxes

36

Section 5.02

Receipt of Payment

38

Section 5.03

Other Taxes

38

Section 5.04

Refunds

38

Section 5.05

Registered Obligation

38

Section 5.06

No Partnership.

39

Section 5.07

Tax Treatment

39

Section 5.08

Mitigation

39

Section 5.09

Survival

39

-i-


 

 

Article VI

CLOSING CONDITIONS

 

Section 6.01

Conditions Precedent to the Purchase of the Note

40

 

Article VII

REPRESENTATIONS AND WARRANTIES

 

Section 7.01

Note Parties Representations and Warranties

42

Section 7.02

Note Parties’ Representations and Warranties as to the Company, Etc

53

 

Article VIII

AFFIRMATIVE COVENANTS

 

Section 8.01

Maintenance of Existence

64

Section 8.02

Use of Proceeds

64

Section 8.03

Financial Statements and Information

65

Section 8.04

Books and Records

67

Section 8.05

Governmental Authorizations

67

Section 8.06

Compliance with Laws and Contracts

67

Section 8.07

Plan Assets

68

Section 8.08

Maintenance of Insurance

68

Section 8.09

Notices

68

Section 8.10

Tax Status of Issuer

69

Section 8.11

Waiver of Stay, Extension or Usury Laws

69

Section 8.12

Intellectual Property

70

Section 8.13

[Reserved.]

71

Section 8.14

[Reserved.]

71

Section 8.15

[Reserved.]

71

Section 8.16

Security Documents; Further Assurances

71

Section 8.17

Information Regarding Collateral

72

Section 8.18

Additional Collateral; New License Arrangement

72

Section 8.19

Performance of GSK Agreement

74

Section 8.20

Amendment of GSK Agreement

74

Section 8.21

Enforcement of GSK Agreement

75

Section 8.22

Approval of Assignments of License Agreement

76

Section 8.23

[Reserved.]

76

Section 8.24

Acknowledgment and Agreement by Purchaser Representative; Limitation of Issuer’s and the Company’s Duties and Obligations

76

Section 8.25

Compliance with Permits

77

 

Article IX

NEGATIVE COVENANTS

 

Section 9.01

Activities of Note Parties

77

Section 9.02

Merger; Disposition of Assets

79

Section 9.03

Liens

79

Section 9.04

Investment Company Act

79

Section 9.05

Limitation on Additional Indebtedness

79

Section 9.06

Limitation on Transactions with Affiliates

80

-ii-


 

Section 9.07

ERISA

80

Section 9.08

Dividends and Distributions

80

Section 9.09

Limitation on Investments

80

Section 9.10

Sanctions; Anti-Corruption Laws

81

Section 9.11

Organizational Documents; Certain Amendments

81

Section 9.12

[Reserved]

81

Section 9.13

Accounts and Payment Instructions

81

Section 9.14

Tax Covenant

81

 

Article X

EVENTS OF DEFAULT

 

Section 10.01

Events of Default

81

Section 10.02

Default Remedies

81

Section 10.03

Right of Set-off; Sharing of Set-off

82

Section 10.04

Rights Not Exclusive

82

 

Article XI

INDEMNIFICATION

 

Section 11.01

Losses

82

Section 11.02

Assumption of Defense; Settlements

83

 

Article XII

PURCHASER REPRESENTATIVE

 

Section 12.01

Appointment; Authorization

84

Section 12.02

Duties

84

Section 12.03

Reliance

84

Section 12.04

Indemnification by Purchasers

84

Section 12.05

Non-Reliance

84

Section 12.06

Successor Purchaser Representative

85

 

Article XIII

MISCELLANEOUS

 

Section 13.01

Assignments

85

Section 13.02

Successors and Assigns

86

Section 13.03

Notices

86

Section 13.04

Entire Agreement

87

Section 13.05

Modification

87

Section 13.06

No Delay; Waivers; etc

87

Section 13.07

Severability

87

Section 13.08

Determinations

87

Section 13.09

Replacement of Note

87

Section 13.10

Governing Law

87

Section 13.11

Jurisdiction

87

Section 13.12

Waiver of Jury Trial

88

Section 13.13

Waiver of Immunity

88

Section 13.14

Nonliability of Purchasers and Purchaser Representative

88

Section 13.15

Limitation on Rights of Others

88

-iii-


 

Section 13.16

Survival

89

Section 13.17

Confidentiality

89

Section 13.18

Patriot Act Notification

89

Section 13.19

Electronic Execution; Counterparts

90

Section 13.20

Limited Recourse; Disposition of Excluded GSK Proceeds

90

 

Article XIV

GUARANTY

 

Section 14.01

Guaranty of Obligations

90

Section 14.02

Payment by Holdings

90

Section 14.03

Liability of Holdings Absolute

91

Section 14.04

Waivers by Holdings

92

Section 14.05

Holdings Rights of Subrogation, Contribution, etc

93

Section 14.06

Subordination of Other Obligations

93

Section 14.07

Continuing Guaranty

93

Section 14.08

Authority of Holdings or Issuer

94

Section 14.09

Financial Condition of Issuer

94

Section 14.10

Bankruptcy, etc

94

-iv-


 

 

Exhibits

 

 

 

Exhibit A

Form of Assignment and Acceptance

Exhibit B

Form of Equity Contribution Agreement

Exhibit C

Form of Issuer Contribution Agreement

Exhibit D

[Reserved]

Exhibit E

[Reserved]

Exhibit F

[Reserved]

Exhibit G

[Reserved]

Exhibit H

Form of Security Agreement

Exhibit I

[Reserved]

Exhibit J

Issuer’s Wiring Instructions

Exhibit K

[Reserved]

Exhibit L

Forms of Tax Certificates

Exhibit M

[Reserved]

Exhibit N

Form of Note

 

 

Schedules

 

 

 

Schedule I

Licensed Products

Schedule 2.01

Note Commitments

Schedule 7.01(g)

Note Party Proceedings

Schedule 7.01(k)

Note Party and Company Broker’s Fees

Schedule 7.01(m)(i)

Listed Patents

Schedule 7.01(m)(iv)

Listed Patents – Validity and Enforceability

Schedule 7.01(r)(x)

Material Contracts – Audits

Schedule 7.02(g)

Company Proceedings

Schedule 7.02(k)

Company Broker’s Fees

Schedule 7.02(o)(ix)

Material Contracts – Audits

Schedule 7.02(v)

Insurance

 

-v-


 

This NOTE PURCHASE AND GUARANTY AGREEMENT dated as of July 8, 2026, is entered into by and between SPERO SPV, LLC, a Delaware limited liability company, as issuer (“Issuer”) and a wholly owned subsidiary of SPERO HOLDINGS SPV, LLC, a Delaware limited liability company (“Holdings”), HCR SPERO SPV, LLC, as purchaser representative (“Purchaser Representative”), and the Purchasers from time to time party hereto.

Capitalized terms not otherwise defined herein shall have the meanings set forth in, or by reference in, Article I below.

RECITALS

WHEREAS, Issuer has requested that the Purchasers purchase the Notes from Issuer on the Closing Date and each Purchaser is willing to purchase the Notes on the Closing Date, on the terms and subject to the conditions set forth herein;

WHEREAS, Spero Therapeutics, Inc., a Delaware corporation (together with its permitted successors or assigns, the “Company”) has entered into the Exclusive License Agreement, dated as of September 21, 2022, with GlaxoSmithKline Intellectual Property (No. 3) Limited, as amended by Amendment 1 to Exclusive License Agreement, dated as of July 4, 2023, as further amended by the Waiver and Release Agreement, dated as of September 27, 2023, as further amended by Amendment 2 to Exclusive License Agreement, dated as of December 20, 2023, as further amended by the Data Transfer Agreement, dated as of March 7, 2024, as further amended by Amendment 3 to Exclusive License Agreement, dated as of March 4, 2024, as further amended by the Side Letter, dated as of May 10, 2024, as further amended by Amendment 4 to Exclusive License Agreement, dated as of October 28, 2024, and as may be further amended from time to time in accordance with Section 8.20 of this Agreement (the “GSK Agreement”), pursuant to which, among other things, the Company granted GSK an exclusive license to develop, manufacture and commercialize the Licensed Product in the Territory, and GSK is obligated to make certain milestone payments and royalty payments to the Company thereunder;

WHEREAS, the Company has formed each of Holdings and Issuer as a special purpose vehicle for the purpose of, among other things, receiving the GSK Proceeds from the Licensee under the GSK Agreement, and Issuer will use the proceeds of the sale of the Notes to acquire, directly or indirectly, the right to receive such GSK Proceeds from the Company; and

NOW, THEREFORE, in consideration of the mutual promises of the Parties, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, it is mutually agreed by the Parties as follows:

Article I

CERTAIN DEFINITIONS

Section 1.01 Definitions. As used herein:

Account Bank” means (a) initially, [***], or (b) such other bank or financial institution approved by Issuer and Purchaser Representative that satisfies the requirements of Section 4.01(e)(ii).

Accreted Principal” has the meaning set forth in Section 3.01(c).

Affected Financial Institution” means (a) any EEA Financial Institution or (b) any UK Financial Institution.

 


 

Affiliate” means, with respect to any Person, any other Person that directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with, such Person. For the purposes of this Agreement, “control” (including, with correlative meaning, the terms “controlling” and “controlled”) means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such Person, whether through the ownership of voting securities, by contract or otherwise.

Agreement” has the meaning set forth in the preamble hereto.

Amortization Payments” has the meaning set forth in Section 4.02(b)(v) hereof.

Anti-Corruption Laws” means all Laws of any jurisdiction applicable to the Company or any of its Affiliates from time to time concerning or relating to bribery or corruption, including without limitation the United States Foreign Corrupt Practices Act of 1977, the UK Bribery Act 2010 and other similar legislation in any other jurisdictions.

Applicable Law” means, with respect to any Person, all Laws, rules, regulations and orders of Governmental Entities applicable to such Person or any of its properties or assets.

Applicable Prepayment Premium” means, as of the date of determination, an amount equal to (a) during the period of time from and after the Closing Date up to and including the date that is the [***] anniversary of the Closing Date, an amount equal at [***]% of the principal amount of the Notes outstanding, (b) during the period of time after the date that is the [***] anniversary of the Closing Date up to and including the date that is the [***] anniversary of the Closing Date, an amount equal to [***]% of the principal amount of Notes outstanding and (c) during the period of time after the date that is the [***] anniversary of the Closing Date up to an including the date that is the [***] anniversary of the Closing Date, an amount equal to [***]% of the principal amount of the Notes outstanding.

Assignee” means (a) the Purchaser Representative or any Purchaser, (b) any Affiliate of the Purchaser Representative or any Purchaser, (c) any other Person administered, advised or managed by the Persons under clause (a) or (b), (d) any other Person (other than a Competitor) regularly engaged in, or established for the purpose of engaging in, investments, financings or other transactions involving debt, equity, royalty, revenue-based, or similar interests or arrangements in healthcare, biopharmaceutical, pharmaceutical, life sciences or related businesses, products, assets or portfolios, including royalty portfolios of the foregoing or (e) any other Person approved by Purchaser Representative and Issuer (each such consent not to be unreasonably withheld, conditioned or delayed).

Assignment and Acceptance” means a written instrument of assignment in the form set forth in Exhibit A, executed by and between the parties to an assignment under Section 13.01 hereof.

Bankruptcy Law” means Title 11 of the United States Code entitled “Bankruptcy” and all other liquidation, conservatorship, bankruptcy, assignment for the benefit of creditors, moratorium, rearrangement, receivership, insolvency, reorganization, or similar debtor relief Laws of the U.S. or other applicable jurisdictions (domestic or foreign) from time to time in effect and affecting the rights of creditors generally.

Bill of Sale” means the Bill of Sale and Assignment Agreement, dated as of the Closing Date, delivered by the Company to Issuer under the Issuer Contribution Agreement with respect to the “Transferred Assets” (as such term is defined in the Contribution Agreement).

-2-


 

Blocked Account” means any deposit account established and maintained in the United States at the Account Bank and pledged as Collateral pursuant to the terms of the Security Agreement and subject to a Control Agreement that is subject to: (a) prior to the New Account Bank Trigger Date, the “control” of Purchaser Representative within the meaning of Section 9-104 of the UCC and (b) from and after the New Account Bank Trigger Date, the full dominion and “control” of Purchaser Representative within the meaning of Section 9-104 of the UCC.

Business Day” means any day other than a Saturday, Sunday or other day on which commercial banks are authorized to close under the Laws of, or are in fact closed in, the state where Purchaser Representative’s Office is located.

Calendar Quarter” means, for the first calendar quarter, the period beginning on the Closing Date and ending on the last day of the calendar quarter in which the Closing Date falls, and thereafter each successive period of three consecutive calendar months ending on March 31, June 30, September 30 or December 31.

Capital Stock” of any Person means any and all shares, interests, memberships, ownership interest units, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such Person, including any preferred stock, and including, if such Person is a partnership, partnership interests (whether general or limited) and any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of property of, such partnership, and including, if such Person is a limited liability company, membership interests and any other interest or participation that confers on a Person the right to receive an interest in the profits and losses of, or distributions of property of, such limited liability company, in each case whether outstanding on the date hereof or issued after the date hereof, but excluding any Indebtedness convertible into or exchangeable for such equity.

Cash Equivalents” means, as at any date, (a) securities issued or directly and fully guaranteed or insured by the United States or any agency or instrumentality thereof (provided, that, the full faith and credit of the United States is pledged in support thereof) having maturities of not more than twelve months from the date of acquisition, (b) Dollar denominated time deposits and certificates of deposit of (i) any domestic commercial bank of recognized standing having capital and surplus in excess of $[***] or (ii) any bank whose short-term commercial paper rating from S&P is at least A-1 or the equivalent thereof or from Moody’s is at least P-1 or the equivalent thereof (any such bank being an “Approved Bank”), in each case with maturities of not more than [***] from the date of acquisition, (c) commercial paper and variable or fixed rate notes issued by any Approved Bank (or by the parent company thereof) or any variable or fixed rate notes issued by, or guaranteed by, any domestic corporation rated A-1 (or the equivalent thereof) or better by S&P or P-1 (or the equivalent thereof) or better by Moody’s and maturing within six months of the date of acquisition and (d) repurchase agreements entered into by any Person with a bank or trust company (including Purchaser Representative) or recognized securities dealer having capital and surplus in excess of $[***] for direct obligations issued by or fully guaranteed by the United States in which such Person shall have a perfected first priority security interest (subject to no other Liens) and having, on the date of purchase thereof, a fair market value of at least 100% of the amount of the repurchase obligations.

Change in Law” means the occurrence, after the Closing Date, of any of the following: (a) the adoption or taking effect of any law, rule, regulation or treaty, (b) any change in any law, rule, regulation or treaty or in the administration, interpretation, implementation or application thereof by any Governmental Entity or (c) the making or issuance of any request, rule, guideline or directive (whether or not having the force of law) by any Governmental Entity; provided, that, notwithstanding anything herein to the contrary, (x) the Dodd-Frank Wall Street Reform and Consumer Protection Act and all requests, rules, guidelines or directives thereunder or issued in connection therewith and (y) all requests, rules,

-3-


 

guidelines or directives promulgated by the Bank for International Settlements, the Basel Committee on Banking Supervision (or any successor or similar authority) or the U.S. or foreign regulatory authorities, in each case pursuant to Basel III, shall in each case be deemed to be a “Change in Law,” regardless of the date enacted, adopted or issued.

Change of Control” means (a) any “person” or “group” (as such terms are used in Sections 13(d) and 14(d) of the Exchange Act, but excluding any employee benefit plan of such person or its subsidiaries, and any person or entity acting in its capacity as trustee, agent or other fiduciary or administrator of any such plan becomes the “beneficial owner” (as defined in Rules 13d-3 and 13d-5 under the Exchange Act)) of more than fifty percent (50%) of the equity interests of the Company entitled to vote for members of its board of directors on a fully diluted basis (and taking into account all such securities that such person or group has the right to acquire pursuant to any option right); provided no Change of Control described in this clause (a) shall have occurred and nothing in this Agreement or any other Transaction Documents shall prohibit a Change of Control described in this clause (a) so long as, (i) no Contributor Event of Default or Servicer Termination Event exists immediately before or immediately after giving effect thereto, and (ii) either (A) the Company is the surviving Person after giving effect to such Change of Control and remains obligated under the Transaction Documents to which the Company is a party, or (B) if the Company is not the surviving Person after giving effect to such Change of Control, the acquiror or surviving Person shall expressly assume all obligations of the Company under the Transaction Documents to which the Company is a party, if such assumption does not occur by operation of law, in which case such surviving Person shall succeed to, and be substituted for, the Company under the Transaction Documents to which the Company is a party, (b) at any time, the Company shall cease to own and control, of record and beneficially, directly, one hundred percent (100%) of the aggregate voting and economic power of the Capital Stock of Holdings free and clear of all Liens; and (c) at any time, Holdings shall cease to own and control, of record and beneficially, directly, one hundred percent (100%) of the aggregate voting and economic power of the Capital Stock of Issuer free and clear of all Liens.

Closing Date” means July 8, 2026.

Code” means the Internal Revenue Code of 1986.

Collateral” has the meaning set forth in the Security Agreement.

Collection Account” means (a) that certain Blocked Account established and maintained by Issuer at the Account Bank for the benefit of Purchaser Representative on behalf of the Purchasers pursuant to Section 4.01(c) and Section 4.01(e)(ii), if applicable, and the Control Agreement, and (b) any successor or replacement Collection Account established in accordance with Section 4.01(e)(i) and subject to a replacement Control Agreement in form and substance satisfactory to Purchaser Representative, in each case, solely for the purpose of receiving remittances of GSK Proceeds and other amounts required to be deposited therein under this Agreement, and making disbursements thereof in accordance with this Agreement and the Control Agreement.

Collection Account Fees” means any accrued and unpaid wire transfer fees, account control fees, deposit account fees or other banking fees, charges and expenses due and owing to the Account Bank in respect of the Collection Account, the Control Agreement and any other cash management agreements established pursuant to Section 4.01(e)(ii).

Commercialization” means, on a country-by-country basis, any and all activities with respect to the distribution, marketing, detailing, promotion, selling and securing of reimbursement of the Licensed Products in the Territory, which shall include, as applicable, post-marketing approval studies, post-launch marketing, promoting, detailing, marketing research, distributing, customer service, selling the

-4-


 

Licensed Products, importing, exporting or transporting the Licensed Products for sale, and regulatory compliance with respect to the foregoing.

Company” has the meaning set forth in the recitals hereto.

Competitor” means any Person that, directly or indirectly, including through one or more Affiliates, develops, manufactures or markets any other oral antibiotic for treatment of cUTI or any oral dosage formulation of any carbapenem which has the same indication as Orapenem.

Confidential Information” means any and all technical and non-technical non-public information provided by either Party to the other (including, without limitation, any Notices or other information provided pursuant to Section 8.09), either directly or indirectly, and including any material prepared on the basis of such information, whether in graphic, written, electronic or oral form, and marked or identified at the time of disclosure as confidential, or which by its context would reasonably be deemed to be confidential, including without limitation information relating to a Party’s revenues, net sales, costs, technology, products and services, and any business, financial or customer information relating to a Party. Confidential Information shall not include any information that a Party can demonstrate was: (i) known to the general public at the time of its disclosure to such Party or its Affiliates, or thereafter became generally known to the general public, other than as a result of actions or omissions of the receiving Party, its Affiliates, or anyone to whom the receiving Party or its Affiliates disclosed such portion; (ii) known by the receiving Party or its Affiliates prior to the date of disclosure by the disclosing Party; (iii) disclosed to the receiving Party or its Affiliates on an unrestricted basis from a source unrelated to the disclosing Party and not known by the receiving Party or its Affiliates (after due inquiry) to be under a duty of confidentiality to the disclosing Party; or (iv) independently developed by the receiving Party or its Affiliates by personnel that did not use the Confidential Information of both Parties. For clarity, this Agreement shall supersede the Confidentiality Agreement and the Confidentiality Agreement shall cease to be of any force and effect following the execution of this Agreement; provided, however, that all information falling within the definition of “Confidential Information” set forth in the Confidentiality Agreement shall also be deemed Confidential Information disclosed pursuant to this Agreement, and the use and disclosure of such Confidential Information following the date of this Agreement shall be subject to the provisions of Section 13.17.

Confidentiality Agreement” means the Confidentiality Agreement, dated as of [***], by and between HealthCare Royalty Management, LLC and the Company.

Contract” means any contract, agreement, commitment, government bid, instrument, license, sublicense, subcontract, real or personal property lease or sublease, letters of intent, memorandum of understanding, offer letter, note, indenture, mortgage, bond, letter of credit, guarantee, purchase order, or other legally binding business arrangement, whether written or oral, together with any amendments, restatements, supplements or other modifications thereto.

Contribution” means the sale, transfer, assignment, contribution and conveyance of the Transferred Assets pursuant to the Contribution Agreements.

Control Agreement” means, with respect to the Collection Account, an account control agreement among Purchaser Representative, the Account Bank and Issuer, effective to grant “control” (as defined under the applicable UCC) over the Collection Account to Purchaser Representative, in form and substance satisfactory to Purchaser Representative; provided, that, from and after the New Account Bank Trigger Date, any reference to a Control Agreement with respect to the Collection Account shall be a Blocked Account pursuant to clause (b) of the definition thereof.

-5-


 

Contribution Agreements” means the collective reference to the Issuer Contribution Agreement and the Equity Contribution Agreements.

Contributor Event of Default” has the meaning set forth in the Issuer Contribution Agreement.

Covered Taxes” means all Taxes, other than Excluded Taxes, imposed on or with respect to any payment made by or on account of any obligation of any Note Party or the Company under any Note Document, including (for the avoidance of doubt) any Taxes withheld or deducted by GSK, Issuer or any other applicable withholding agent in respect of any GSK Proceeds.

Default” means any condition or event which constitutes an Event of Default or which, with the giving of notice or the lapse of time or both (in each case to the extent described in the relevant clauses of the definition of Event of Default) would, unless cured or waived become an Event of Default.

Default Rate” means, for any period for which an amount is overdue, a rate per annum equal for each day in such period to the lesser of (i) [***]% plus the Fixed Interest and (ii) the maximum rate of interest permitted under Applicable Law.

Designated Jurisdiction” means any country or territory to the extent that such country or territory is, or whose government is, the subject or target of any Sanctions broadly restricting or prohibiting dealings with such country, territory or government.

“Disposition” means the sale, transfer, conveyance, license, sublicense or other disposition (including any sale and leaseback transaction and any issuance of Capital Stock) of any property by any Person (or the granting of any option or other right to do any of the foregoing), including any sale, assignment, transfer or other disposal, with or without recourse, of any notes or accounts receivable or any rights and claims associated therewith; provided, that, “Disposition” shall not include any Permitted Lien. “Dispose” shall have a correlative meaning.

Disqualified Capital Stock” of any Person means any class of Capital Stock of such Person that, by its terms, or by the terms of any related agreement or of any security into which it is convertible, puttable or exchangeable requires the payment of dividends or distributions in cash, is, or upon the happening of any event or the passage of time would be, required to be redeemed by such Person, whether or not at the option of the holder thereof, or matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, in whole or in part, on or prior to the date which is [***] after the Scheduled Maturity Date.

Dollars” or “$” means lawful money of the U.S.

Drug Application” means an application for Regulatory Authorization to market, sell and distribute a drug or product in a country or region, including (a) a New Drug Application, (b) any corresponding foreign application in any country or jurisdiction in the world, including, with respect to the EEA, an application for a Marketing Authorization filed with the EMA, the MHRA or with the applicable Regulatory Agency of a country in the European Union with respect to the mutual recognition or any other national approval procedure, and (c) all supplements, amendments, variations, extensions and renewals thereof that may be filed with respect to the foregoing.

EEA” means the European Economic Area and the United Kingdom.

-6-


 

EEA Financial Institution” means (a) any credit institution or investment firm established in any EEA Member Country which is subject to the supervision of an EEA Resolution Authority, (b) any entity established in an EEA Member Country which is a parent of an institution described in clause (a) of this definition, or (c) any financial institution established in an EEA Member Country which is a subsidiary of an institution described in clauses (a) or (b) of this definition and is subject to consolidated supervision with its parent.

EEA Member Country” means any of the member states of the European Union, the United Kingdom, Iceland, Liechtenstein, and Norway.

EEA Resolution Authority” means any public administrative authority or any person entrusted with public administrative authority of any EEA Member Country (including any delegee) having responsibility for the resolution of any EEA Financial Institution.

Electronic Record” and “Electronic Signature” have the meanings assigned to them, respectively, by 15 USC §7006, as it may be amended from time to time.

Equity Contribution Agreement” means the Equity Contribution Agreement by and between the Company and Holdings in the form attached hereto as Exhibit B.

ERISA” means the Employee Retirement Income Security Act of 1974.

Event of Default” means the occurrence of any of the events set forth below:

(a) Issuer fails to pay any principal of, or premium on, any Note when the same becomes due and payable, whether on the Scheduled Maturity Date, by acceleration or otherwise;

(b) Except as permitted by Section 4.01, Issuer fails to pay any interest on the Notes (including, without limitation, Fixed Interest; it being understood that compliance with Section 3.01(c) constitutes payment of the Quarterly Interest Shortfall) or make payment of any other amounts payable under this Agreement, in each case within [***] same becomes due and payable, but only to the extent that amounts are then on deposit in the Collection Account or were required to be deposited therein pursuant to Section 4.01(f);

(c) Any representation or warranty of any Note Party in any Note Document to which it is party or in any certificate, financial statement or other document delivered pursuant to any Note Document to Purchaser Representative proves to have been incorrect in any material respect when made or deemed made; provided, that, if the consequences of the failure of such representation or warranty to be true and correct can be cured, such failure continues for a period of [***] without such cure after the earlier of the date any Note Party becomes aware of such failure or the date Purchaser Representative provides Notice of such failure to the Note Parties; provided, further that no cure period shall apply to any failure giving rise to a claim under the Parent Guaranty other than any cure periods set forth in the Parent Guaranty (if any);

(d) Any Note Party fails to perform or observe any covenant or agreement contained in (i) Section 4.01(c)(i) or (c)(iii), Section 4.01(f), Section 8.02, Section 8.07, Section 8.09(a), Section 4.01(e)(ii) or Article IX or (ii) Section 4.03(a) and such failure is not remedied within five (5) Business Days;

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(e) Any Note Party fails to perform or observe any other covenant or agreement contained in any Note Document to which it is a party (other than those referred to in the preceding clauses of this definition) if such failure is not remedied on or before the earlier of (i) the [***] after the date on which a Senior Officer of any Note Party has actual Knowledge of such failure and (ii) the [***] after Notice thereof from Purchaser Representative;

(f) A Servicer Termination Event occurs and is continuing;

(g) a Contributor Event of Default occurs and is continuing;

(h) the Company fails to pay, or cause to be paid, the GSK Development Payment when due and payable;

(i) Any uninsured judgment, decree or order in an amount in excess of $[***] shall be rendered against any Note Party and either (i) enforcement proceedings shall have been commenced upon such judgment, decree or order or (ii) such judgment, decree or order shall not have been stayed or bonded pending appeal, vacated or discharged, within [***] from entry;

(j) An Insolvency Event shall occur;

(k) (i) Any of the Note Documents shall cease to be in full force and effect other than in accordance with its terms, (ii) the validity or enforceability of any Note Document is disaffirmed or challenged in writing by any Note Party, the Company or their respective Affiliates or (iii) this Agreement or the Security Agreement shall cease to give Purchaser Representative the rights purported to be created hereby or thereby, including a first priority perfected Lien on the assets of any Note Party that constitute Collateral, subject only to Permitted Liens, other than as a direct result of any action by Purchaser Representative or failure of Purchaser Representative to perform an obligation of Purchaser Representative hereunder;

(l) Any Note Party fails to perform or observe any covenant or agreement contained in any Material Contract to which it is a party and such failure is not cured or waived within any applicable grace period or any Material Contract to which it is a party shall cease to be in full force and effect, and such failure to perform or observe results in a termination of such Material Contract, and any such failure, cessation or termination could reasonably be expected to have a Material Adverse Effect;

(m) The Meiji License Agreement is terminated, cancelled, rescinded, or otherwise ceases to be in full force and effect, in whole or in part. The GSK Agreement is terminated, cancelled, rescinded, or otherwise ceases to be in full force and effect, in whole or in part, in each case prior to the Scheduled Maturity Date and is not replaced in accordance with Section 8.18(b) hereof within [***] after such termination, cancellation, recission or cessation; provided, that, such failure to replace shall not constitute an Event of Default for so long as the Note Parties are engaged in discussions with a Third Party with respect to a New Arrangement, continue to exert commercially reasonable efforts, as measured at the time, to effect such New Arrangement and have a good faith reasonable belief that such discussions will result in the entry into a New Arrangement within a reasonable period of time thereafter;

(n) Any security interest purported to be created by the Security Agreement shall cease to be in full force and effect, or shall cease to give the rights, powers and privileges purported to be created and granted hereunder or thereunder (including a perfected first priority security interest in and Lien on (subject in each case to Permitted Liens and, solely with respect to the continuing first

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priority granted to Secured Party under the Note Documents, Permitted Liens entitled to priority under Applicable Law) substantially all of the Collateral (except as otherwise expressly provided herein and therein)) in favor of Purchaser Representative pursuant hereto or thereto (other than as a result of the failure by Purchaser Representative of taking any action required to maintain the perfection of such security interests), or shall be asserted by Issuer not to be a valid, perfected, first priority (except as otherwise expressly provided in this Agreement or such Security Agreement) security interest in the Collateral and/or Issuer takes any action that could reasonably be expected to impair Purchaser Representative’s security interest in any of the Collateral (other than granting Permitted Liens or permitting such Permitted Liens to exist);

(o) any Note Party fails to comply in any material respect with the terms of its respective SPV Organizational Documents;

(p) a Change of Control shall occur without the prior written consent of Purchaser Representative;

(q) (i) any material portion of the Collateral, the Transferred Assets, the GSK Proceeds or any other assets of any Note Party is attached, seized, appropriated, levied upon, condemned or otherwise comes into the possession or control of any trustee, receiver, Governmental Entity or other Person acting or purporting to act under authority of Law, or (ii) any order, injunction, writ or decree of any Governmental Entity enjoins, restrains or otherwise prevents any Note Party from conducting any material part of its business or performing any material obligation under any Note Document, in each case under clauses (i) and (ii), if such event could reasonably be expected to have a Material Adverse Effect and continues for [***] after the earlier of (A) the date on which a Senior Officer of Issuer has actual Knowledge thereof or (B) Notice thereof from Purchaser Representative;

(r) The occurrence, as reasonably determined by Purchaser Representative in good faith, of any act of fraud by any Note Party, the Company or any of their respective Affiliates in connection with this Agreement, any other Note Document, the Contribution Agreements, the GSK Agreement, the Transferred Assets, the Collateral, the GSK Proceeds or the transactions contemplated hereby or thereby;

(s) the Company fails to (i) pay all Maintenance Expenses on behalf of the Note Parties when due and payable and to treat such payment, for accounting purposes, as an equity contribution to the capital of Holdings and, as applicable, a subsequent equity contribution by Holdings to the capital of Issuer, or (ii) maintain an unrestricted (except for restrictions arising pursuant to the Control Agreement or the Transaction Documents) cash balance in the Collection Account required under Section 4.01(c)(ii) and such failure is not remedied on or before the earlier of (i) [***] after the date on which a Senior Officer of any Note Party has actual Knowledge of such failure and (ii) [***] after Notice thereof from Purchaser Representative;

Exchange Act” means the Securities Exchange Act of 1934, and the regulations promulgated thereunder.

Excluded GSK Proceeds” means, solely to the extent arising, paid or payable after Payment in Full, 35% of the excess, if any, of (i) each payment of GSK Proceeds to which Issuer is entitled over (ii) the associated Meiji Payments, if any, that Issuer or any of its Affiliates is obligated to make.

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Excluded Taxes” means any of the following Taxes imposed in each case on or with respect to a payment to any Purchaser (a) any Taxes imposed on or measured by net income (however denominated), franchise Taxes and branch profits Taxes, in each case (x) imposed as a result of such Purchaser being organized under the laws of, or having its principal office or its applicable lending office located in, the jurisdiction imposing such Tax (or any political subdivision thereof) or (y) that are Other Connection Taxes, (b) any U.S. federal withholding Tax imposed on amounts payable to or for the account of such Purchaser with respect to an applicable interest in the Notes pursuant to a law in effect on the date on which (i) such Purchaser acquires such applicable interest in the Notes or (ii) such Purchaser changes its lending office, except, in each case, to the extent that (A) such Tax was imposed on Purchaser’s assignor (if any) immediately prior to the assignment to such Purchaser, or was imposed on such Purchaser immediately prior to the change of such Purchaser’s lending office, and (B) such Tax described in (A) was a Covered Tax, (c) any Tax that is attributable to such Purchaser’s failure to comply with Section 5.01(c) and (d) any Tax withheld pursuant to FATCA.

FATCA” means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that is substantively comparable and not materially more onerous to comply with), any current or future regulations or official interpretations thereof, any agreements entered into pursuant to current Section 1471(b)(1) of the Code (or any amended or successor version described above) and any fiscal or regulatory legislation, or official administrative rules or other official administrative guidance adopted pursuant to any intergovernmental agreement, treaty or convention among Governmental Entities and implementing such Sections of the Code.

FDA” means the United States Food and Drug Administration.

Financial Statements” means, the consolidated balance sheets of the Company, audited at December 31, 2025 and December 31, 2024 and unaudited for the fiscal quarter ended March 31, 2026, and the related consolidated statements of operations and comprehensive loss, cash flows and changes in stockholders’ equity of the Company audited for the years ended December 31, 2025 and December 31, 2024, and unaudited for the fiscal quarter ended March 31, 2026 and in each case the accompanying notes thereto, as filed within Forms 10-K and 10-Q with the SEC.

Fixed Interest” means interest with respect to the Notes, accruing with respect to the outstanding principal balance thereof, at a rate per annum equal to ten percent (10.0%), payable quarterly in arrears on each Payment Date.

Foreign Purchaser” means any Purchaser which is not a U.S. Person.

Governmental Entity” means any government, regulatory or administrative agency or commission, or other governmental agency, authority, instrumentality or body (including a court), whether foreign, federal, state or local, including any applicable Patent Office, the FDA, the European Medicines Agency, the United States National Institutes of Health, United Kingdom’s Medicines and Healthcare products Regulatory Authority or any other governmental authority in any country.

Governmental Licenses” means all authorizations issuing from a Governmental Entity, including the FDA, based upon or as a result of applications to and requests for approval from a Governmental Entity for the right to Commercialize (as defined in the GSK Agreement) a Licensed Product, which are owned by or licensed to the Company or any Affiliate, acquired by the Company or any Affiliate via assignment, purchase or otherwise or that the Company or any Affiliate is authorized or granted rights under or to.

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GSK” means GlaxoSmithKline Intellectual Property (No. 3) Limited, a company registered under the laws of England and Wales with offices at 980 Great West Road, Brentford, Middlesex TW8 9GS England and a party to the GSK Agreement. If the GSK Agreement is assigned or otherwise transferred by GSK to another Person in accordance with this Agreement, references to GSK hereunder shall be deemed to be references to such other Person.

GSK Agreement” has the meaning set forth in the recitals hereto.

GSK Development Payment” means the amounts owed by Issuer to GSK pursuant to Section 4.1(a)(ii) of the GSK Agreement with respect to GSK’s [***] related to the development of Tebipenem Pivoxil Hydrobromide, which amounts are estimated to be USD $[***].

GSK Payment Notice” means the following notices:

(a) notice from GSK under Section 6.3 of the GSK Agreement of the achievement of a Commercial Milestone Event (as defined in the GSK Agreement);

(b) notice from GSK under Section 6.4 of the GSK Agreement of the achievement of a Sales Milestone Event (as defined in the GSK Agreement); or

(c) any other notice from GSK notifying the Company that payments constituting the Royalty Payments are due, payable or paid under the GSK Agreement.

GSK Proceeds” means all of Issuer’s (as assignee of the Company pursuant to the Issuer Contribution Agreement) right, title and interest in and to the following:

(a) all amounts due, payable or paid to the Company under Section 6.3 of the GSK Agreement;

(b) all amounts due, payable or paid to the Company under Section 6.4 of the GSK Agreement;

(c) all Royalty Payments;

(d) all amounts due, payable or paid to the Company in respect of any provisions concerning underpayment of or in lieu of the amounts set forth in (a) through (c) above;

(e) all interest that becomes payable in respect of the late payment of any of the amounts referred to in the foregoing clauses (a) through (d) pursuant to Section 6.7(c) of the GSK Agreement;

(f) all accounts (as defined under the UCC) evidencing the rights to the payments and amounts described in this definition; and

(g) all proceeds (as defined under the UCC) of any of the foregoing including any and all proceeds of Transferred Assets;

All of the foregoing amounts shall be determined after giving effect to (a) all GSK Royalty Reductions that are applicable to such amounts, (b) any amounts withheld or additional amounts paid pursuant to Section 6.9 of the GSK License Agreement, and (c) subject to Section 5.01 of this Agreement, deductions for withholding or similar taxes, in each case excluding any Non-Permitted Set-Offs. For the

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avoidance of doubt, GSK Proceeds shall include all amounts due, payable or paid to the Company or any of its Affiliates by one or more licensees or sublicensees under any New Arrangement to the extent attributed to the Licensed Products.

GSK Products” has the meaning given to the term “Product” in Section 1.134 of the GSK Agreement.

GSK Royalty Reductions” means, with respect to the GSK Agreement, any adjustments, modifications, credits, offsets, reductions or deductions to royalty payments made under Section 6.5 of the GSK Agreement pursuant to Section 6.5(c), Section 6.5(d) or Section 6.5(e) of the GSK Agreement, subject in all cases to the limitation imposed by Section 6.5(f) of the GSK Agreement.

Guarantee” means, as to any Person: (a) any obligation, contingent or otherwise, of such Person guaranteeing or having the economic effect of guaranteeing any Indebtedness or other obligation payable or performable by another Person (the “primary obligor”) in any manner, whether directly or indirectly, and including any obligation of such Person, direct or indirect (i) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness or other obligation, (ii) to purchase or lease property, securities or services for the purpose of assuring the obligee in respect of such Indebtedness or other obligation of the payment or performance of such Indebtedness or other obligation, (iii) to maintain working capital, equity capital or any other financial statement condition or liquidity or level of income or cash flow of the primary obligor so as to enable the primary obligor to pay such Indebtedness or other obligation, or (iv) entered into for the purpose of assuring in any other manner the obligee in respect of such Indebtedness or other obligation of the payment or performance thereof or to protect such obligee against loss in respect thereof (in whole or in part); or (b) any Lien on any assets of such Person securing any Indebtedness or other obligation of any other Person, whether or not such Indebtedness or other obligation is assumed by such Person. The amount of any Guarantee shall be deemed to be an amount equal to the stated or determinable amount of the related primary obligation, or portion thereof, in respect of which such Guarantee is made or, if not stated or determinable, the maximum reasonably anticipated liability in respect thereof as determined by the guaranteeing Person in good faith. The term “Guarantee” as a verb has a corresponding meaning.

Guaranteed Obligations” has the meaning given to such term in Section 14.01.

Healthcare Laws” means all Laws relating to healthcare regulatory matters, including the Federal Food, Drug, and Cosmetic Act, the Public Health Service Act, the Anti-Kickback Statute (42 U.S.C. § 1320a-7b), the Federal False Claims Act (31 U.S.C. §§ 3729-3733), the Foreign Corrupt Practices Act of 1977, HIPAA, and all comparable state and foreign Laws.

Holdings” has the meaning set forth in the preamble hereto.

Holdings Organizational Documents” means the certificate of formation and amended and restated operating agreement (or similar documents) of Holdings or the functional equivalent of the foregoing.

Indebtedness” means, with respect to any Person, all items which, in accordance with GAAP, would be included in determining total liabilities as shown on the liability side of the balance sheet of such Person as of the date as of which such Indebtedness is to be determined, including (i) indebtedness pursuant to an agreement or instrument involving or evidencing money borrowed, the advance of credit, a conditional sale or a transfer with recourse or with an obligation to repurchase (but excluding trade credit and accounts payable in the ordinary course of business), (ii) any capitalized lease, (iii) any obligations with respect to Disqualified Capital Stock, (iv) indebtedness secured by (or for which the holder of such

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indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien on assets owned or acquired by such Person (other than Indebtedness among the Note Parties), whether or not the indebtedness secured thereby has been assumed (but only to the extent of such Lien), (v) net amounts owing pursuant to an interest rate protection agreement, foreign currency exchange agreement or other hedging arrangement, (vi) a reimbursement obligation under a letter of credit issued for the account of such Person, or (vii) all Guarantees. For the avoidance of doubt, the Indebtedness of any Person shall include the Indebtedness of any other entity to the extent such Person is directly liable therefor as a result of such Person’s ownership interest in or other relationship with such entity, except to the extent the terms of such Indebtedness provide that such Person is not liable therefor.

Indemnified Liabilities” means, collectively, any and all liabilities, obligations, losses, damages, penalties, claims and out-of-pocket costs, expenses and disbursements of any kind or nature whatsoever (including the reasonable and documented out-of-pocket fees and disbursements of counsel for Indemnitees in connection with any investigative, administrative or judicial proceeding commenced or threatened by any Person whether or not any such Indemnitee shall be designated as a party or a potential party thereto, and whether or not such Indemnitee is required by Applicable Law to be involved therein, and any out-of-pocket fees or expenses actually incurred by Indemnitees in enforcing the indemnity provided herein), whether direct, indirect or consequential, whether based on any federal, state or foreign laws, statutes, rules or regulations (including securities and commercial laws, statutes, rules or regulations), on common law or equitable cause or on contract or otherwise, imposed on, incurred by, or asserted against any such Indemnitee, in any manner relating to or arising out of this Agreement or the other Note Documents or the transactions contemplated hereby or thereby (including any enforcement of any of the Note Documents (including any sale of, collection from, or other realization upon any of the Collateral)).

Indemnitee” means Purchaser Representative, any Purchaser and each of their Affiliates and their respective officers, partners, directors, trustees, employees, agents and controlling Persons.

Independent Manager” means, with respect to any Note Party, an individual who has prior experience as an independent director, independent manager or independent member and at least [***] years of employment experience with one or more nationally recognized companies that provide independent director, independent manager or independent member services in the ordinary course of their respective businesses and that are not Affiliates of any Note Party, the Company or any of their respective Affiliates, and who (a) is duly appointed as an “independent manager” of such Note Party pursuant to Section 18-101(10) of the Delaware Limited Liability Company Act and is entitled to all rights and privileges of such position under the applicable SPV Organizational Documents, (b) is not, and has never been, and will not while serving as Independent Manager be, (i) a member, partner, equityholder, officer, director, manager, employee, attorney or counsel of any Note Party, the Company or any of their respective Affiliates, other than in such Person’s capacity as Independent Manager, or (ii) the owner of any Capital Stock of any Note Party, the Company or any of their respective Affiliates, (c) to the fullest extent permitted by Applicable Law, including Section 18-1101(c) of the Delaware Limited Liability Company Act, is required under the applicable SPV Organizational Documents to consider only the interests of such Note Party, including its creditors, in acting or otherwise voting on any Insolvency Event or any matter requiring the consent of the Independent Manager under the applicable SPV Organizational Documents, (d) is under no fiduciary duty to any Person other than such Note Party and its creditors with respect to any such matter, (e) has been disclosed to Purchaser Representative, together with a brief description of such Person’s prior professional activities and such other information as Purchaser Representative may reasonably request, prior to the effectiveness of such Person’s appointment, and (f) has been approved in writing by Purchaser Representative in its reasonable discretion; provided, that, Holdings and Issuer may have the same Independent Manager as one another.

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Infringement” and “Infringes” mean the infringement, misappropriation, or other violation of any Patents, copyrights, trademarks, know-how, trade secrets, confidential information, and/or other Intellectual Property.

Initial Search Period” has the meaning set forth in Section 8.18(b).

Insolvency Event” means the occurrence of any of the following with respect to any Note Party or the Company:

(i) (A) an involuntary proceeding shall be commenced or an involuntary petition shall be filed in a court of competent jurisdiction seeking (x) relief in respect of any Note Party or the Company, or of a substantial part of the property of any Note Party or the Company, under any Bankruptcy Law now or hereafter in effect, (y) the appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official for any Note Party or the Company for a substantial part of the property of any Note Party or the Company or (z) the winding-up or liquidation of any Note Party or the Company, which proceeding or petition shall continue undismissed for [***] or (B) an order of a court of competent jurisdiction approving or ordering any of the foregoing shall be entered;

(ii) Any Note Party or the Company shall (A) voluntarily commence any proceeding or file any petition seeking relief under any Bankruptcy Law now or hereafter in effect, (B) apply for the appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official itself or for a substantial part of its property, (C) fail to contest in a timely and appropriate manner any proceeding or the filing of any petition described in clause (i) of this definition, (D) file an answer admitting the material allegations of a petition filed against it in any proceeding described in clause (i) of this definition, (E) make a general assignment for the benefit of creditors or (F) wind up or liquidate (except as permitted under this Agreement);

(iii) Any Note Party or the Company shall take any action in furtherance of or for the purpose of effecting, or indicating its consent to, approval of, or acquiescence in, any of the acts set forth in clause (i) or (ii) of this definition; or

(iv) Any Note Party or the Company shall become unable, admit in writing its inability, or fail generally, to pay its debts as they become due.

Insurance Providers” means the insurance companies set forth in Schedule 7.02(v) or insurance companies rated at least as high as the ratings given, as of the Closing Date (according to A.M. Best Company, Inc.).

Intellectual Property” means all intellectual property covering the sale, manufacture, use, importation or marketing of any Licensed Product in such Licensed Product’s Territory, including but not limited to patents, patent applications, trademarks, trademark applications and know-how, necessary for the sale, manufacture, use, importation or marketing of such Licensed Product that is owned, licensed in or controlled (and if controlled, only to the extent of control) by Issuer (after giving effect to the Contribution under the Issuer Contribution Agreement) as of the Closing Date and during term of this Agreement.

Intercreditor Agreement” means (a) prior to Payment in Full of the Obligations, a subordination agreement, among Purchaser Representative, for the benefit of the Purchasers, the Note Parties and the Monetization Counterparties (or the representatives thereof), in a form reasonably satisfactory to Purchaser Representative, which shall provide, among other things, for the full subordination of the Monetization Counterparties’ payment, lien, enforcement and other rights under the Permitted

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Monetization Facility to the prior Payment in Full of the Obligations and (b) an intercreditor agreement, among Purchaser Representative under (and as defined in) the Royalty Purchase Agreement, for the benefit of the Purchasers (as defined in the Royalty Purchase Agreement), Issuer and the Monetization Counterparties (or the representatives thereof), in a form reasonably satisfactory to Purchaser Representative under the Royalty Purchase Agreement; provided, that, no such intercreditor agreement shall be required if the Monetization Counterparty does not take a Lien on any asset of Issuer, including the Collection Account, other than the Excluded GSK Proceeds to which such Monetization Counterparty has rights.

Investment” means, as to any Person, any direct or indirect acquisition or investment by such Person, whether by means of (a) the purchase or other acquisition of Capital Stock of another Person, (b) a loan, advance or capital contribution to, Guarantee or assumption of debt of, or purchase or other acquisition of any other debt or equity participation or interest in, another Person, including any partnership or joint venture interest in such other Person and any arrangement pursuant to which the investor Guarantees Indebtedness of such other Person, or (c) an acquisition. For purposes of covenant compliance, the amount of any Investment shall be the amount actually invested, without adjustment for subsequent increases or decreases in the value of such Investment and without regard to any cash or other property received or returned to the Company and its Subsidiaries with respect thereto.

In-License” means any license, settlement agreement or other contract or arrangement between a Note Party and any Third Party pursuant to which such Note Party obtains a license or a covenant not to sue or similar grant of rights to Intellectual Property of such Third Party that is necessary for Commercialization activities with respect to the Licensed Products.

IP Rights” means, collectively, all Drug Applications, all Governmental Licenses, all applications and requests for Governmental Licenses, all Other Intellectual Property, all Patents, all Patent Licenses, all Trademarks, all Trade Secrets, and all Regulatory Authorizations, and all other Intellectual Property, in each case, which are (a) owned or controlled by, issued or licensed to, licensed by, or hereafter acquired or licensed to or by, the Company or any Affiliate, including (but not limited to) the items listed on Schedule 7.01(m)(i) and (b) used in, relating to or necessary for the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory, including, for the avoidance of doubt, all Intellectual Property licensed to GSK under the GSK Agreement to the extent used in, relating to or necessary for Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory.

Issuer” shall have the meaning set forth in the preamble hereto.

Issuer Contribution Agreement” means the Purchase and Sale, Contribution and Servicing Agreement, dated as of the Closing Date, between the Company, Issuer and Holdings, in the form of Exhibit C hereto.

Issuer’s Organizational Documents” means the certificate of formation and amended and restated operating agreement of Issuer.

Knowledge” means, with respect to any Note Party or the Company, the actual knowledge after due inquiry of any Senior Officer of the Company; provided, that, due inquiry shall not [***].

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Laws” means, collectively, all international, foreign, federal, state and local statutes, treaties, rules, guidelines, regulations, ordinances, codes and administrative or judicial precedents or authorities, including the interpretation or administration thereof by any Governmental Entity charged with the enforcement, interpretation or administration thereof, and all applicable administrative orders, directed duties, requests, licenses, authorizations and permits of, and agreements with, any Governmental Entity, in each case whether or not having the force of law.

Licensed Patents” means all Patents that are licensed or sublicensed to the Company which are used in or necessary for the Commercialization of the Licensed Products in the Territory.

Licensed Product” means (a) the GSK Products, and (b) any “licensed products” (howsoever denominated) under any New Arrangement, including any such product in development or which may be developed by GSK and subject to the GSK Agreement, including those products set forth on Schedule I (as supplemented from time to time in accordance with the terms of this Agreement); provided, that, if the Note Parties shall fail to comply with their obligations under this Agreement to give notice to Purchaser Representative and supplement Schedule I prior to GSK Commercializing any new Licensed Product, any such improperly undisclosed Licensed Product shall be deemed to be included in this definition. For clarity, references in this Agreement to “a” Licensed Product or to “the” Licensed Product(s) refer to any Licensed Product(s) under or with respect the GSK Agreement or New Arrangement.

Licensee” means GSK.

Licensee Instruction Letter” has the meaning set forth in Section 4.01(d).

Licensor” means Issuer (as assignee of the Company pursuant to the Issuer Contribution Agreement).

Lien” means any mortgage, pledge, hypothecation, assignment, deposit arrangement, encumbrance, lien (statutory or other), charge, or preference, priority or other security interest or preferential arrangement of any kind or nature whatsoever (including any conditional sale or other title retention agreement, any easement, right of way or other encumbrance on title to real property, and any financing lease having substantially the same economic effect as any of the foregoing).

Listed Patents” has the meaning set forth in Section 7.01(m)(i).

Maintenance Expenses” means all franchise, excise or similar Taxes, filing fees, registration fees, fees, costs and expenses incurred in connection with the Independent Manager of the Note Parties, legal costs and expenses related to amending or otherwise modifying the SPV Organizational Documents or the Note Documents in accordance with this Agreement, and similar amounts of Holdings and Issuer that are due and payable, in each case to the extent necessary to maintain Holdings’s and Issuer’s legal existence, SPV status, compliance with the SPV Organizational Documents or any Material Contracts, good standing and permits, licenses and franchises required or desirable under the Note Documents, other Material Contracts and Applicable Law.

Marketing Authorization” means, with respect to a Licensed Product, the Regulatory Approval required by Applicable Law to sell such Licensed Product in a country or region, including, to the extent required by Applicable Law for the sale of such Licensed Product, all pricing approvals and government reimbursement approvals.

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Material Adverse Effect” means (a) a material adverse change in the business, operations, properties, results of operations or financial condition of Issuer, taken as a whole; (b) a material adverse effect on the validity or enforceability of the Note Documents taken as a whole or any material provision hereof or thereof; (c) a material adverse effect on the ability of Issuer or the Company to consummate the transactions contemplated by the Note Documents, or on the ability of Issuer or the Company to perform its obligations under the Note Documents to which it is a party, in each case, taken as a whole; (d) a material adverse effect on the rights of Issuer under the GSK Agreement or the Meiji License Agreement or (e) a material adverse effect on the rights or remedies of Purchaser Representative under the Note Documents, taken as a whole.

Material Contract Counterparty” means a counterparty to any Material Contract.

Material Contracts” means (a) the GSK Agreement, (b) the Meiji License Agreement, (c) each Contract or other agreement other than the Note Documents or Royalty Purchase Documents to which Issuer is a party involving aggregate payments of more than $[***], whether such payments are being made by or to Issuer, (d) each in-license and each out-license, in each case, of Intellectual Property to which any Note Party is a party, pertaining to Product Development and Commercialization Activities with respect to any Material Product, (e) each Contract (other than the Note Documents or Royalty Purchase Documents) to which Issuer is a party, and that is material to Product Development and Commercialization Activities with respect to any Material Product (including, without limitation, all waivers, amendments, supplements and other modifications thereto) and (f) all other Contracts or agreements to which Issuer is a party that are, individually or in the aggregate, material to the business, assets, properties, liabilities (actual or contingent) or financial condition of Issuer (other than the Note Documents or Royalty Purchase Documents). The Material Contracts as of the date hereof are the GSK Agreement and the Meiji License Agreement.

Material Other Reports” (i) all material reports (other than the Royalty Reports) or notices relating to the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory provided by GSK to Issuer, and (ii) the reports and other information received by Issuer pursuant to Sections 2.3(a)(iv), 2.11(c), 3.2(e) (solely with respect to finalized minutes), 4.1(a) (solely with respect to any amendments or modifications to the Development Plan (as defined in the GSK Agreement)), 4.10(b), 4.10(c), 5.3(d), 5.3(e), 5.6, 7.1(c), 7.2(c), 7.2(d), 7.3(a), 7.3(c), 8.4, 10.4(a), 10.8, 11.7(b) and 14.6 of the GSK Agreement.

Material Product” means (a) the Licensed Product and (b) each other product of Issuer the loss of which could reasonably be expected, either individually or in the aggregate, to have a Material Adverse Effect.

Maximum Lawful Rate” means the highest rate of interest permissible under Applicable Law.

Meiji” means Meiji Seika Pharma Co., Ltd., a Japanese corporation and a party to the Meiji License Agreement. If the Meiji License Agreement is assigned or otherwise transferred by Meiji to another Person in accordance with and subject to the terms of this Agreement, references to Meiji hereunder shall be deemed to be references to such other Person.

Meiji License Agreement” means that certain License Agreement, dated as of June 14, 2017, by and between Issuer (as assignee of Spero Therapeutics, Inc. (as successor to Spero OpCo, Inc.) pursuant to the Issuer Contribution Agreement) and Meiji, as supplemented by the Addendum to License Agreement, dated as of June 14, 2017, and as amended by the Amendment to License Agreement, effective as of July 1, 2024, and, to the extent applicable, as assigned, transferred and contributed to Issuer pursuant to the Issuer Contribution Agreement.

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Meiji Payments” means any Royalties (as defined in the Meiji License Agreement) under Section 4.3 of the Meiji License Agreement, in each case, to the extent due and payable by the Company or Issuer during the applicable Calendar Quarter and attributable to payments received under or in respect of the GSK Agreement.

Modification” has the meaning set forth in Section 8.20.

Net Sales” has the meaning given to such term in Section 1.114 of the GSK Agreement.

New Account Bank Trigger Date” means the [***] after the Closing Date, or such later date approved by Purchaser Representative.

New Arrangement” has the meaning set forth in Section 8.18(b).

New Arrangement Expenses” has the meaning set forth in Section 8.18(b).

Non-Permitted Set-Off” means any Set-Off, whether by contract or otherwise, that is exercised by GSK in respect of a claim against any Issuer, Holdings or the Company, including (a) any amounts owed by Issuer, Holdings or the Company to GSK, or (b) any Set-Off taken pursuant to Section 6.6 or Section 11.8 of the GSK Agreement (in each case, other than a GSK Royalty Reduction or a deduction for withholding or similar taxes pursuant to Section 6.9 of the GSK Agreement).

Notes” means the notes to be issued by Issuer and purchased by each Purchaser in accordance with Section 2.01, and after issuance to each Purchaser, at any time the aggregate principal amount of the Note outstanding at such time, including any Accreted Principal.

Note Commitment” means, with respect to each Purchaser, the commitment of such Purchaser, if any, to purchase the Notes, which commitment is in the amount set forth opposite such Purchaser’s name on Schedule 2.01, as amended to reflect assignments pursuant to this Agreement. The aggregate amount of the Purchasers’ Note Commitments as of the Closing Date is $105,000,000.

Note Documents” means this Agreement, the Notes, the Security Agreement, the Parent Guaranty, the Contribution Agreements, the Control Agreement, the Bill of Sale and all other documents delivered in connection herewith or therewith.

Note Parties” means Issuer and Holdings.

Notices” means, collectively, notices, consents, approvals, reports, designations, requests, waivers, elections and other communications.

Obligations” means, without duplication, the Notes, Fixed Interest and all present and future Indebtedness, Taxes, liabilities, obligations, covenants, duties, and debts, owing by Issuer to Purchaser Representative, arising under or pursuant to the Note Documents, including all principal, interest, premium, charges, expenses, fees and any other sums chargeable to Issuer hereunder and under the other Note Documents (and including any interest, fees and other charges that would accrue but for the filing of a bankruptcy action with respect to Issuer, whether or not such claim is allowed in such bankruptcy action).

Office” means, with respect to Purchaser Representative, its Stamford, Connecticut office, and with respect to any other Purchaser, the office of Purchaser designated as its “Office” in an Assignment and Acceptance, or such other office as may be otherwise designated in writing from time to time by Purchaser to Issuer.

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Organizational Document” means, with respect to any Person, (i) in the case of any corporation, the certificate of incorporation and by-laws (or similar documents) of such Person, (ii) in the case of any limited liability company, the certificate of formation and operating agreement (or similar documents) of such Person (including the Holdings Organizational Documents and Issuer’s Organizational Documents), (iii) in the case of any limited partnership, the certificate of formation and limited partnership agreement (or similar documents) of such Person, (iv) in the case of any general partnership, the partnership agreement (or similar document) of such Person, and (v) in any other case, the functional equivalent of the foregoing.

Other Connection Taxes” means, with respect to any Purchaser, Taxes imposed as a result of a present or former connection between such Purchaser and the jurisdiction imposing such Tax (other than any connections arising from such Purchaser having executed, delivered, become a party to, performed its obligations under, received payments under, received or perfected a security interest under, engaged in any other transaction pursuant to or enforced any Note Document, or sold or assigned any interest in the Notes or any Note Document).

Other Taxes” means all present or future stamp, court, documentary, intangible, recording, filing or similar taxes that arise from any payment made under, from the execution, delivery, performance, enforcement or registration of, from the receipt or perfection of a security interest under, or otherwise with respect to any of the Note Documents, except for any Taxes imposed with respect to an assignment that are Other Connection Taxes.

Owned Patents” means all Patents which are owned by a Note Party and which are used in, relating to or necessary for the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory.

Parent Guaranty” means that certain Limited Recourse Guaranty, dated as of the Closing Date, made by the Company in favor of HCR SPERO SPV, LLC, in its capacities as Purchaser Representative and RPA Representative.

Party” and “Parties” means Purchaser Representative, Purchaser and Issuer, individually and collectively.

Patent” means any and all issued patents and pending patent applications, including without limitation, all provisional applications, substitutions, continuations, continuations-in-part, divisions, and renewals, all letters patent granted thereon, and all patents-of-addition, reissues, reexaminations and extensions or restorations by existing or future extension or restoration mechanisms (including regulatory extensions), claiming or covering the Licensed Products, or composition of matter, formulation, or methods of manufacture or use thereof, that are issued or filed on or after the date of this Agreement, including those identified in Schedule 7.01(m)(i), in each such case, which are owned, co-owned or controlled by, issued or licensed to, licensed by, or hereafter acquired or licensed by, Issuer or any Subsidiary.

Patent Office” means the respective patent office (foreign or domestic) for any patent.

Patriot Act” means the USA Patriot Act, Public Law No. 107-56.

Payment Date” means, for each applicable Calendar Quarter, the date that is the last Business Day of the Calendar Quarter immediately following such Calendar Quarter, or if any such day is not a Business Day, on the next succeeding Business Day.

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Payment in Full” means the payment in full in cash in immediately available funds of the Notes and other Obligations (other than contingent indemnification obligations for which no such claims have been made).

Payments” means due and owing payments of Amortization Payments and Fixed Interest (each under Section 4.02 hereof), including, in each case any default interest, additional interest or prepayment premium charged hereunder.

Permits” means licenses, certificates, accreditations, Regulatory Authorizations, other authorizations, registrations, permits, consents, clearances and approvals required in connection with the conduct of the Company’s or any Subsidiary’s business or to comply with any Applicable Laws, and those issued by state governments for the conduct of the Company’s or any Subsidiary’s business.

Permitted Liens” means:

(a) Liens created pursuant to any Note Document or Royalty Purchase Documents;

(b) Liens in favor of a banking or other financial institution arising as a matter of law or under customary contractual provisions encumbering deposits or other funds maintained with such banking or other financial institution (including the right of collection or set off and grants of security interests in deposits and/or securities held by such banking or other financial institution) and that are within the general parameters customary in the banking industry;

(c) Liens securing the claims of attachment, judgment and other similar Liens arising in connection with court proceedings so long as the judgment claims secured thereby do not otherwise constitute an Event of Default under clause (i) of the definition of “Event of Default”;

(d) Liens in connection with the Meiji License Agreement, GSK Agreement, in each case, existing or arising in connection with any provision existing prior to the date of this Agreement, and any New Arrangement or other license replacing the GSK Agreement in accordance with Section 8.18(b);

(e) Liens for ad valorem property Taxes that are not yet due and payable;

(f) Liens in respect of property of the Note Parties imposed by Applicable Law which were incurred in the ordinary course of business and do not secure Indebtedness; and

(g) Liens on the Excluded GSK Proceeds.

Permitted Royalty Monetization” means any monetization transaction with a Third Party (a “Monetization Counterparty”) involving the sale, transfer, option or collateralization of the Excluded GSK Proceeds, including but not limited to a sale, royalty bond or other royalty financing, synthetic royalty or revenue interest transaction, or monetization transaction; provided, that (a) such transaction shall not contain terms relating to collateral security (if any) or subordination (if any), or other material terms (other than economic terms) that, taken as a whole, are less favorable in any material respect to Issuer than those terms contained in the Transaction Documents (as defined in the Royalty Purchase Agreement) with respect to the Purchased Proceeds (as defined in the Royalty Purchase Agreement), (b) after giving effect to such transaction, no Material Adverse Effect shall have occurred or could reasonably be expected to occur as a result thereof and (c) an Intercreditor Agreement is executed in connection therewith (it being understood and agreed the Monetization Counterparty shall have no right or entitlement to the Excluded GSK Proceeds at any time until Payment in Full, and upon Payment in Full, Issuer acknowledges that compliance with certain other conditions set forth in the definition of “Permitted Royalty Monetization” under (and as defined in) the Royalty Purchase Agreement is required).

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Person” means any natural person, firm, corporation, limited liability company, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, Governmental Entity or any other legal entity, including public bodies, whether acting in an individual, fiduciary or other capacity.

Plan Assets” means assets of any (i) employee benefit plan (as defined in Section 3(3) of ERISA) subject to the fiduciary responsibility provisions of Title I of ERISA, (ii) plan (as defined in Section 4975(e)(1) of the Code) subject to Section 4975 of the Code or (iii) entity whose underlying assets include assets of any such employee benefit plan or plan by reason of the investment by an employee benefit plan or plan in such entity.

Prepayment Event Date” means the date of occurrence of a Prepayment Trigger.

Prepayment Trigger” means the occurrence of both (i) an Event of Default and (ii) unless prohibited by operation of Law, the acceleration of the maturity of the Notes in accordance with the terms of the Note Documents as a result of such Event of Default.

Privacy Laws” means all Laws applicable to the privacy or security of individually identifiable information of any patient or individual, including without limitation HIPAA, the EU General Data Protection Regulation (EU) 2016/679 (GDPR) and equivalent Laws in other jurisdictions.

Principal Amount” means, as of any date of determination, and without duplication, the amount equal to the sum of: (i) the original amount of the Note Commitment, plus, (ii) any Accreted Principal accrued as of such date, minus, (iii) any payment in respect of principal as provided for in Section 3.01, 3.02 or 4.02 or otherwise.

Proceeding” means an action or proceeding brought against a Party as a defendant, for purposes of all legal proceedings arising out of or relating to this Agreement or the transactions contemplated hereby.

Proceeds” means any amounts actually received by any Note Party from a Person (other than any Purchaser) as a result of any settlement or resolution of any actions, suits, proceedings, claims or disputes related to, and to the extent involving GSK Proceeds and serving as a substitute for, the GSK Proceeds pursuant to any New Arrangement, except for any such amounts (a) that are required to be paid to a Licensee under the GSK Agreement or (b) that are otherwise used to reimburse or indemnify a Licensee for costs, expenses, legal fees or other fees relating to such actions, suits, proceedings, claims or disputes.

Product Development and Commercialization Activities” means, on a country-by-country basis, with respect to the Licensed Product, any combination of research, development, Commercialization, or like activities the purpose of which is to develop or commercialize the Licensed Product.

Product Distributor” means any Person engaged in any Product Development and Commercialization Activities by or on behalf of the Company or any Subsidiary.

Product-Specific Patents” has the meaning set forth in Section 8.12(a).

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Prosecute” means preparing, filing, and prosecuting patent applications and maintaining patents, including any reexaminations, reissues, oppositions, inter partes review, and interferences, and defending against any claims of invalidity or unenforceability; and “Prosecution” shall have the correlative meaning.

Protective Advance” has the meaning set forth in Section 2.05.

Purchaser” has the meaning set forth in the preamble hereto and includes any successors and assigns under Section 13.01(b).

Purchaser Representative” has the meaning set forth in the preamble hereto.

Purchaser Account” means such account of Purchaser Representative maintained at such banking institution as Purchaser Representative may specify in its discretion from time to time in writing to Issuer at least [***] prior to any Payment Date or other date on which payments are to be made to Purchaser Representative pursuant to the Note Documents.

Purchaser Expense Amount” means the reasonable and documented fees and out-of-pocket expenses of Purchaser Representative incurred in connection with the issuance of the Notes, including legal fees and expenses and expenses incurred in connection with Purchaser Representative’s due diligence investigation, in an aggregate principal amount not to exceed $[***].

Quarterly Interest Shortfall” has the meaning set forth in Section 3.01(c).

Quarterly Payment Certificate” has the meaning set forth in Section 4.03.

Register” means a record of ownership in which Issuer registers by book entry the interests (including any rights to receive payment hereunder) of Purchaser in the Notes and any assignment of any such interest, obligation or right as described in Section 5.05.

Regulatory Agency” means a Governmental Entity with responsibility for the regulation of the research, development, marketing or sale of drugs or pharmaceuticals in any jurisdiction, including the FDA and the European Medicines Agency.

Required Purchasers” means Purchasers having aggregate interests in the Notes the amount of which exceeds [***]% of the outstanding Notes, collectively.

Regulatory Approval” means, with respect to the Licensed Product, any approval, registration, license or authorization by a Regulatory Agency necessary for the commercial manufacture, distribution, marketing, promotion, offer for sale, use, import, export or sale of such Licensed Product in a country or jurisdiction in the Territory.

Regulatory Authorizations” means all approvals, clearances, notifications, authorizations, orders, exemptions, registrations, designations, certifications, licenses and Permits granted by, submitted to or filed with any Regulatory Agencies, all Marketing Authorizations with respect to the Licensed Product and all orphan drug designations.

Representative” means, collectively, with respect to any Person, the trustees, directors, board members, members, partners, managers, officers, employees, agents, advisors or other representatives (including attorneys, accountants, consultants, scientists and financial advisors) of such Person.

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Royalty Payments” means all amounts due, payable or paid to Issuer (as assignee of the Company pursuant to the Issuer Contribution Agreement) under Section 6.5 of the GSK Agreement (for clarity, after giving effect to all GSK Royalty Reductions and deductions for withholding or similar taxes pursuant to Section 6.9 of the GSK Agreement applicable thereto, but excluding any Non-Permitted Set-Off), including all such amounts due, paid or payable on deemed Net Sales as set forth in Section 7.3(d) of the GSK Agreement.

Royalty Purchase Agreement” means that certain Royalty Purchase Agreement, dated as of the date hereof, by and among Issuer and Purchaser Representative.

Royalty Purchase Documents” has the meaning set forth in the Royalty Purchase Agreement.

Royalty Reports” means, with respect to the relevant Calendar Quarter, the “Royalty Reports” (as defined in the GSK Agreement as of the date of this Agreement) provided for under Section 6.5(b) of the GSK Agreement for the period thereunder corresponding to such Calendar Quarter, together with relevant supporting documentation.

Sanctions” means any and all economic or financial sanctions, sectoral sanctions, secondary sanctions, trade embargoes and anti-terrorism Laws imposed, administered or enforced from time to time by (a) the U.S. government, including those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”), the U.S. Department of State, or the U.S. Department of Commerce, (b) the United Nations Security Council, (c) the European Union, (d) His Majesty’s Treasury of the United Kingdom or (e) any other relevant sanctions authority.

Scheduled Maturity Date” means the ninth anniversary of the Closing Date.

SEC” means the United States Securities and Exchange Commission.

SEC Reports” means (A) the Company’s most recently filed Annual Report on Form 10-K and (B) all Quarterly Reports on Form 10-Q or Current Reports on Form 8-K filed or furnished (as applicable) by the Company following the end of the most recent fiscal year for which an Annual Report on Form 10-K has been filed, together in each case with any documents incorporated by reference therein or exhibits thereto.

Secured Party” means the “NPA Secured Party” as defined in the Security Agreement.

Securities Act” means the Securities Act of 1933, as amended, and the regulations promulgated thereunder.

Security Agreement” means the Security Agreement, substantially in the form of Exhibit H hereto, between the Note Parties and Purchaser Representative, securing the Obligations of the Note Parties hereunder and the other Note Documents and, in the case of the Security Agreement, the Transaction Documents (as defined in the Royalty Purchase Agreement), as supplemented by any amendments or supplements thereto.

Senior Officer” means (i) in the case of the Note Parties, the Chief Executive Officer, Chief Financial Officer, Treasurer, Chief Operating Officer, any Senior Vice President or Secretary and (ii) in the case of the Company, the Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, any Senior Vice President, Treasurer or Secretary and, in each case, any other Person performing the roles customary for such title or succeeding to the roles of the foregoing officers.

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Servicer Termination Event” has the meaning set forth in the Issuer Contribution Agreement.

Set-Off” means any set-off, off-set, reduction or similar deduction.

SPV Organizational Documents” means Issuer’s Organizational Documents and the Holdings Organizational Documents, as amended or otherwise modified from time to time to the extent permitted by the Note Documents.

Subsidiary” means, with respect to any Person, at any time, any entity of which more than fifty percent (50%) of the outstanding voting stock or other equity interest entitled ordinarily to vote in the election of the directors or other governing body (however designated) is at the time beneficially owned or controlled directly or indirectly by such Person, by one or more such entities or by such Person and one or more such entities.

Taxes” means all present and future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments or similar fees or other charges imposed by any Governmental Entity, including any related interest, additions to tax or penalties applicable thereto.

Tebipenem Pivoxil Hydrobromide” means the compound described on Schedule I and any pharmaceutical or biological composition containing tebipenem pivoxil hydrobromide, including any modifications or improvements thereto and any other product that directly competes with or replaces Tebipenem Pivoxil Hydrobromide that may be developed or commercialized by the Company or any of its Subsidiaries, including any products or product candidates that are being developed by the Company or any of its Subsidiaries as of the date of this Agreement.

Territory” means, with respect to the GSK Agreement, the “GSK Territory” as defined therein (i.e., worldwide, excluding the Excluded Territory (as defined in the GSK Agreement), subject to adjustment pursuant to Section 2.11(c) of the GSK Agreement).

Third Party” means any Person other than Issuer or its Affiliates.

Trade Secrets” means any data or information that is not commonly known by or available to the public, and which (a) derives economic value, actual or potential, from not being generally known to and not being readily ascertainable by proper means by other Persons who can obtain economic value from its disclosure or use, and (b) is the subject of efforts that are reasonable under the circumstance to maintain its secrecy.

Trademarks” means any statutory or common law trademark, service mark, trade name, logo, symbol, trade dress, domain name, corporate name or other indicator of source or origin or identifies the goods and services of one provider from another, and all applications and registrations therefor, together with all of the goodwill associated therewith, now existing or hereafter adopted or acquired, all registrations and recordings thereof, and all applications to register in connection therewith, under the Laws of the United States, any state thereof or any other country or any political subdivision thereof, or otherwise, for the full term and all renewals thereof.

Transaction Documents” means the Note Documents and the SPV Organizational Documents.

Transferred Assets” has the meaning set forth in the Issuer Contribution Agreement in addition to the Contributed Assets under (and as defined in) the Equity Contribution Agreement.

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UCC” means the Uniform Commercial Code as in effect from time to time in New York; provided, that, if, with respect to any financing statement or by reason of any provisions of Applicable Law, the perfection or the effect of perfection or non-perfection of the security interest or any portion thereof granted pursuant to the Note Documents is governed by the Uniform Commercial Code as in effect in a jurisdiction of the U.S. other than New York, then “UCC” means the Uniform Commercial Code as in effect from time to time in such other jurisdiction for purposes of the provisions of this Agreement and any financing statement relating to such perfection or effect of perfection or non-perfection.

UK Financial Institution” means any BRRD Undertaking (as such term is defined under the PRA Rulebook (as amended from time to time) promulgated by the United Kingdom Prudential Regulation Authority) or any person falling within IFPRU 11.6 of the FCA Handbook (as amended from time to time) promulgated by the United Kingdom Financial Conduct Authority, which includes certain credit institutions and investment firms, and certain affiliates of such credit institutions or investment firms.

U.S.” means the United States of America.

U.S. Person” means any Person that is a “United States Person” as defined in Section 7701(a)(30) of the Code.

U.S. Tax Compliance Certificate” has the meaning specified in Section 5.01(c)(ii).

Wire Transfer Forms” has the meaning set forth in Section 4.03(a)(ii).

Section 1.02 Certain Interpretations. Except where expressly stated otherwise in this Agreement, the following rules of interpretation apply to this Agreement:

(a) An accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP.

(b) Words of the masculine, feminine or neuter gender shall mean and include the correlative words of other genders.

(c) The definitions of terms shall apply equally to the singular and plural forms of the terms defined.

(d) “include,” “includes,” and “including” shall be deemed to be followed by the words “without limitation;”

(e) Unless otherwise specified, references to an agreement or other document include references to such agreement or document as from time to time amended, restated, reformed, supplemented or otherwise modified in accordance with the terms thereof (subject to any restrictions on such amendments, restatements, reformations, supplements or modifications set forth herein or in any of the other Transaction Documents) and include any annexes, exhibits and schedules attached thereto.

(f) References to any Applicable Law shall include such Applicable Law as from time to time in effect, including any amendment, modification, codification, replacement or reenactment thereof or any substitution therefor.

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(g) References to a Person shall be construed to include such Person’s successors and permitted assigns (subject to any restrictions on assignment, transfer or delegation set forth herein or in any of the other Transaction Documents), and any reference to a Person in a particular capacity excludes such Person in other capacities.

(h) The word “will” shall be construed to have the same meaning and effect as the word “shall”.

(i) The words “hereof,” “herein,” “hereunder” and similar terms when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision hereof, and Article, Section and Exhibit references herein are references to Articles and Sections of, and Exhibits to, this Agreement unless otherwise specified.

(j) In the computation of a period of time from a specified date to a later specified date, the word “from” means “from and including” and each of the words “to” and “until” means “to but excluding”.

(k) Where any payment is to be made, any funds are to be applied or any calculation is to be made under this Agreement on a day that is not a Business Day, unless this Agreement otherwise provides, such payment shall be made, such funds shall be applied and such calculation shall be made on the succeeding Business Day, and payments shall be adjusted accordingly.

Article II

THE NOTES; PURCHASE AND SALE

Section 2.01 Purchase and Sale of Notes.

(a) On the terms and subject to the conditions set forth herein, including the conditions set forth in Section 6.01, on the Closing Date, Issuer shall issue, sell and deliver to each Purchaser, and each Purchaser severally, but not jointly, agrees to purchase from Issuer, Notes in an aggregate principal amount equal to the Note Commitment of such Purchaser as set forth on Schedule 2.01 hereto.

Section 2.02 [Reserved].

Section 2.03 Purchase Price and Delivery. On the terms and subject to the conditions set forth herein:

(a) On the Closing Date, Purchaser Representative shall pay the purchase price for the Notes by wire transfer of immediately available funds in Dollars to the account of Issuer designated in writing for such purpose, or to Issuer’s order, in an amount equal to (i) the Note Commitment less (ii) each of (A) the Purchaser Expense Amount as of the Closing Date, (B) an amount equal to 3.0% of the Note Commitment, which shall be retained by Purchaser Representative as original issue discount and (C) the amount required pursuant to Section 6.01(l) to be held in the Collection Account, which such amount shall be funded to the Collection Account on the Closing Date in accordance with the letter of direction delivered to Purchaser Representative pursuant to Section 6.01(q) (i.e., the Notes will be funded on a net basis).

Section 2.04 No Right to Reborrow or Reissue. The Notes are not revolving in nature, and any amount of the Notes repaid, prepaid, redeemed or otherwise retired may not be reborrowed, reissued or reinstated.

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Section 2.05 Protective Advances. Notwithstanding any provision of this Agreement or any other Note Document to the contrary, Purchaser Representative shall have the right, but not the obligation, in its sole discretion, and Issuer hereby irrevocably authorizes Purchaser Representative, at any time that Issuer fails to do so within [***] after receipt of prior written notice from Purchaser Representative, to (a) discharge, at Issuer’s expense, any Taxes or Liens affecting any Collateral that have not been paid in violation of any Note Document or that could reasonably be expected to impair Purchaser Representative’s Lien priority in the Collateral, (b) make any other payment for the administration, servicing, maintenance, preservation or protection of the Collateral, the Collection Account or Purchaser Representative’s rights under the Note Documents or (c) make any other payment to the Licensee or any other Person that, if not paid, could reasonably be expected to result in a breach of the GSK Agreement or a Material Adverse Effect (each such advance or payment, a “Protective Advance”). Issuer irrevocably authorizes Purchaser Representative to make any Protective Advance by direct payment of the relevant amount to the applicable payee. Each Protective Advance shall constitute an Obligation, shall bear interest at the Default Rate from the date such Protective Advance is made until paid in full in cash, and shall be reimbursed to Purchaser Representative in accordance with Section 4.02 or otherwise upon demand. No Protective Advance by Purchaser Representative shall be construed as a waiver of any Default or Event of Default or of any right or remedy of Purchaser Representative.

Section 2.06 Representations and Warranties of Purchasers. Each Purchaser, by acceptance of a Note, hereby represents and warrants on the Closing Date as follows:

(a) It is (i) an “accredited investor” as defined in Rule 501(a) of Regulation D promulgated under the Securities Act and an “Institutional Account” as defined in FINRA Rule 4512(c) or a “qualified institutional buyer” within the meaning of such term as set forth in Rule 144A(a)(1) under the Securities Act and (ii) has such knowledge, skill, sophistication and experience in business and financial matters, based on actual participation, that it is capable of evaluating the merits and risks of the purchase and sale of the Notes from Issuer and the suitability thereof for such Purchaser. It is specifically understood and agreed that such Purchaser is acquiring the Notes for the purpose of investment and not with a view towards the sale or distribution thereof within the meaning of the Securities Act and it is acquiring the Notes only for its own account and not for the account of others, or if such Purchaser is subscribing for the Notes as a fiduciary or agent for one or more investor accounts, such Purchaser has full investment discretion over such account, and the full power and authority to make the acknowledgments, representations and agreements herein on behalf of each owner of each such account.

(b) It understands that the Notes will not be registered under the Securities Act by reason of their issuance by Issuer in a transaction exempt from the registration requirements of the Securities Act and that it may have to hold the Notes indefinitely unless a subsequent disposition thereof is registered under the Securities Act and applicable state securities laws or is exempt from registration or qualification by prospectus.

(c) It (i) is duly organized, validly existing and in good standing under the Laws of its jurisdiction of organization, incorporation or formation and (ii) has full power and authority to enter into this Agreement. This Agreement, when executed and delivered by it, will constitute valid and legally binding obligations of each Purchaser, enforceable in accordance with their terms, except as limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance, and any other laws of general application affecting enforcement of creditors’ rights generally, and as limited by Laws relating to the availability of specific performance, injunctive relief, or other equitable remedies.

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(d) Such Purchaser further understands that the exemption from registration afforded by Section 4(a)(2) under the Securities Act depends on the satisfaction of various conditions, and that, if applicable, Section 4(a)(2) may afford the basis for sales only in limited amounts.

(e) Such Purchaser (i) is an institutional account as defined in FINRA Rule 4512(c), (ii) is a sophisticated investor, experienced in investing in equity transactions that are not registered under the Securities Act, and capable of evaluating investment risks independently, both in general and with regard to all transactions and investment strategies involving a security or securities and (iii) has exercised independent judgment in evaluating its participation in the purchase of the Notes.

(f) In making its decision to purchase the Notes such Purchaser has relied solely upon independent investigation made by such Purchaser and Issuer’s representations and warranties in Article VII and covenants contained herein and in the other Note Documents. Such Purchaser acknowledges and agrees that such Purchaser has received, and has had an adequate opportunity to review, such information as such Purchaser deems necessary in order to make an investment decision with respect to the Notes, including with respect to Issuer and the transactions contemplated hereunder. Such Purchaser represents and agrees that such Purchaser and such Purchaser’s professional advisor(s), if any, have had the full opportunity to ask such questions, receive such answers and obtain such information as such Purchaser and such undersigned’s professional advisor(s), if any, have deemed necessary to make an investment decision with respect to the Notes and such Purchaser acknowledges that it has reviewed all disclosure documents provided by or on behalf of Issuer in connection with the Note issuance, the Note Documents and the transactions contemplated hereunder.

(g) Such Purchaser has analyzed and considered the risks of an investment in the Notes and determined that the Notes are a suitable investment for such Purchaser and that such Purchaser is able at this time and in the foreseeable future to bear the economic risk of a total loss of such Purchaser’s investment in Issuer. Such Purchaser acknowledges specifically that a possibility of total loss exists.

Article III

REPAYMENT

Section 3.01 Amortization; Scheduled Maturity Date.

(a) If not earlier repaid in full, the unpaid balance of the outstanding Principal Amount of the Notes, together with any accrued and unpaid interest, and all other Obligations then outstanding, shall be due and payable in cash in immediately available funds in Dollars to the Purchaser Account on the Scheduled Maturity Date.

(b) Other than in connection with a voluntary prepayment pursuant to Section 3.02(b) or as set forth in the Parent Guaranty, the outstanding principal balance of the Notes and any interest or premium due with respect thereto shall be repayable solely from GSK Proceeds; provided, that, such amounts may also be repayable from proceeds of Collateral and all other assets of the Note Parties in accordance with the terms of the Note Documents.

(c) If, after giving effect to the application of GSK Proceeds pursuant to Section 4.02(a) and (b) on any Payment Date, the amounts available for application pursuant to Section 4.02(b)(iii) are insufficient to pay all amounts of Fixed Interest due on the Notes for such period (the amount of such shortfall, the “Quarterly Interest Shortfall”), then any such Quarterly Interest Shortfall shall be deemed to have been paid in kind and shall increase the outstanding Principal

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Amount of the Notes by an amount equal to the Quarterly Interest Shortfall for the applicable Payment Date (rounded up to the nearest whole dollar) (such increased amount, “Accreted Principal”). Accreted Principal shall thereafter bear interest in accordance with Section 4.01 and otherwise be treated as part of the outstanding Principal Amount of the Notes and the Obligations for all purposes under this Agreement and the other Note Documents. In the event of any repayment, prepayment, redemption or acceleration of the Notes, accrued and unpaid Fixed Interest on the Principal Amount so repaid, prepaid, redeemed or accelerated shall be payable on the date of such repayment, prepayment, redemption or acceleration.

Section 3.02 Mandatory and Voluntary Prepayments.

(a) Mandatory Prepayments. If any Event of Default has occurred and is continuing, then Purchaser Representative may declare the outstanding Principal Amount of the Notes as of the date of the Prepayment Event Date plus any accrued and unpaid interest thereon to be immediately due and payable hereunder, in whole but not in part, to the extent permitted by Law, together, if applicable, with (A) any additional amounts due in respect thereof pursuant to Section 3.02(c), and (B) all other Obligations then outstanding (other than contingent indemnification obligations for which no such claims have been made).

(b) Voluntary Prepayments. Issuer may, at any time upon not less than [***] prior written notice to Purchaser Representative, prepay, in whole but not in part, the Principal Amount of the Notes, plus the Applicable Prepayment Premium and any accrued and unpaid interest thereon, together, if applicable, with (A) any additional amounts due in respect thereof pursuant to Section 3.02(c), and (B) all other Obligations then outstanding (other than contingent indemnification obligations for which no such claims have been made).

(c) In connection with the prepayment in full of the Notes outstanding, any unpaid amounts in respect of such prepaid Notes not consisting of principal, Fixed Interest or the Applicable Prepayment Premium (including, any unpaid amounts for indemnification, default interest, expense reimbursement and other amounts not consisting of principal or interest) shall be immediately due and payable. All Obligations hereunder shall, other than in connection with a voluntary prepayment pursuant to Section 3.02(b) or as set forth in the Parent Guaranty, be repayable solely from GSK Proceeds or, only following the occurrence of a Prepayment Trigger, from proceeds of Collateral and all other assets of the Note Parties in accordance with the terms of the Note Documents.

Section 3.03 Increased Cost.

(a) Increased Costs Generally. If any Change in Law shall:

(i) impose, modify or deem applicable any reserve, special deposit, compulsory loan, insurance charge or similar requirement against assets of, deposits with or for the account of, or obligations owing to, any Purchaser;

(ii) subject any Purchaser to any Taxes (other than (A) Covered Taxes and Other Taxes and (B) Excluded Taxes) with respect to the Notes or other obligations under the Note Documents, or its deposits, reserves, other liabilities or capital attributable thereto; or

(iii) impose on any Purchaser any other condition, cost or expense (other than Taxes) affecting this Agreement,

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and the result of any of the foregoing shall be to increase the cost to any Purchaser of purchasing, holding or maintaining the Notes, or to reduce the amount of any sum received or receivable by any Purchaser under any Note Document, then, upon written demand of any Purchaser, Issuer shall pay to such Purchaser such additional amount or amounts as will compensate such Purchaser for such additional costs incurred or reduction suffered.

(b) Capital Requirements. If any Purchaser determines that any Change in Law affecting such Purchaser or the Office of such Purchaser or such Purchaser’s holding company, if any, regarding capital or liquidity requirements has or would have the effect of reducing the rate of return on Purchaser’s capital or on the capital of Purchaser’s holding company, if any, as a consequence of Purchaser Representative’s obligations under this Agreement or its purchase, ownership or holding of the Notes to a level below that which such Purchaser or such Purchaser’s holding company could have achieved but for such Change in Law (taking into consideration such Purchaser’s policies and the policies of such Purchaser’s holding company with respect to capital adequacy), then Issuer shall pay to such Purchaser such additional amount or amounts as will compensate Purchaser Representative or Purchaser Representative’s holding company for any such reduction suffered.

(c) Certificates for Reimbursement. A certificate of any Purchaser setting forth the amount or amounts necessary to compensate Purchaser or its holding company, as the case may be, as specified in clause (a) or (b) of this Section 3.03 and delivered to Issuer shall be conclusive absent manifest error. Issuer shall pay such Purchaser the amount shown as due on any such certificate within [***] after receipt thereof.

(d) Delay in Requests. Failure or delay on the part of any Purchaser to demand compensation pursuant to the foregoing provisions of this Section 3.03 shall not constitute a waiver of such Purchaser’s right to demand such compensation; provided, that, Issuer shall not be required to compensate any Purchaser pursuant to the foregoing provisions of this Section 3.03 for any increased costs incurred or reductions suffered more than [***] prior to the date that Purchaser notifies Issuer of the Change in Law giving rise to such increased costs or reductions and of such Purchaser’s intention to claim compensation therefor (except that, if the Change in Law giving rise to such increased costs or reductions is retroactive, then the [***] period referred to above shall be extended to include the period of retroactive effect thereof).

Section 3.04 Illegality. If any Purchaser determines that any Law has made it unlawful, or that any Governmental Entity has asserted that it is unlawful, for such Purchaser or its Office to purchase, own, hold or maintain any Note or charge or receive interest with respect to any Note, then, on notice thereof by such Purchaser to Issuer, such Purchaser’s obligation to issue, purchase, maintain, fund or charge interest with respect to the Notes or to purchase any Note shall be suspended until Purchaser Representative notifies Issuer that the circumstances giving rise to such determination no longer exist. Upon receipt of such notice, Issuer shall, upon demand from Purchaser Representative, repay the Notes in full, together with accrued and unpaid interest, and all other Obligations then outstanding, on the last day permitted by Applicable Law or, if earlier repayment is required by Applicable Law, immediately.

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Article IV

INTEREST; EXPENSES; MAKING OF PAYMENTS

Section 4.01 Interest Rate; Collection Account; Payment of GSK Proceeds.

(a) Interest Rate. The outstanding Principal Amount of the Notes shall bear interest at a rate equal to the Fixed Interest, which shall be payable quarterly in arrears in cash on each Payment Date as provided in this Section 4.01. All interest hereunder shall be computed on the basis of a 360 day year of twelve 30-day months.

(b) Interest Generally. Interest on the Notes shall be due and payable quarterly in arrears on each Payment Date. Subject to Section 3.02 above and the priority of payments set forth in Section 4.02, all interest shall be due and payable solely from the GSK Proceeds; provided, that, such interest may also be payable from the proceeds of Collateral and all other assets of the Note Parties in accordance with the terms of the Note Documents or as set forth in the Parent Guaranty.

(c) Establishment of Collection Account; Control Agreement; Maintenance, Collection and other Fees and Expenses.

(i) On or before the Closing Date, Issuer shall (i) establish and maintain at the Account Bank a new, segregated deposit account for the benefit of Purchaser Representative on behalf of the Purchasers (such account, the “Collection Account”), (ii) cause the Collection Account to be pledged as Collateral pursuant to the Security Agreement, and (iii) execute and deliver, together with Purchaser Representative and the Account Bank, a Control Agreement with respect to the Collection Account in form and substance satisfactory to Purchaser Representative providing for Purchaser Representative’s control over the Collection Account and for the receipt and disbursement of all amounts deposited therein in accordance with this Agreement.

(ii) Issuer shall maintain at all times, by receipt of periodic cash equity contributions to the capital of Issuer from the Company pursuant to the Issuer Contribution Agreement (and not, for the avoidance of doubt, cash constituting GSK Proceeds), a minimum unrestricted (except for restrictions arising pursuant to the Control Agreement or the Transaction Documents) cash balance in the Collection Account sufficient to pay all Collection Account Fees and other fees, expenses and charges of the Account Bank anticipated to be due and payable in the next [***] shall become due and payable.

(iii) Prior to the New Account Bank Trigger Date, Issuer shall not direct the Account Bank to transfer funds held in the Collection Account except with the express prior written consent of Purchaser Representative.

(d) Licensee Instruction Letter. On or before the Closing Date, Issuer shall deliver an irrevocable written notice to GSK (such notice, a “Licensee Instruction Letter”) directing GSK to remit all payments owed to Issuer in respect of the GSK Agreement, including all GSK Proceeds, directly to the Collection Account, without deduction, withholding, set-off or counterclaim except to the extent expressly permitted under the GSK Agreement, and specifying the assignment of the GSK Agreement to Issuer. Each Licensee Instruction Letter shall be in the form attached to the Issuer Contribution Agreement or otherwise satisfactory to Purchaser Representative.

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(e) Replacement Collection Account; New Account Bank Trigger Date.

(i) Prior to Payment in Full, Issuer shall have no right to terminate the Collection Account without Purchaser Representative’s prior written consent; provided, that, without Purchaser Representative’s consent to the change of location (provided such location is in the U.S.), Issuer may establish a replacement Collection Account with a replacement Account Bank if (A) such replacement Account Bank executes a Control Agreement with respect to such replacement Collection Account effective no later than the date of replacement and in form and substance satisfactory to Purchaser Representative in its sole discretion and (B) on the date of creation of the replacement Collection Account, Issuer delivers a revised Licensee Instruction Letter to GSK directing that all GSK Proceeds be remitted to such replacement Collection Account.

(ii) On or prior to the New Account Bank Trigger Date, (A) Issuer shall establish with the Account Bank a Collection Account (or otherwise modified the terms of the Collection Account in effect on the Closing Date), (B) Issuer and Purchaser Representative shall enter into a Control Agreement (or otherwise amended, modified or replaced the Control Agreement in effect on the Closing Date) with the Account Bank with respect to the Collection Account and (C) Issuer and such other applicable parties required to be party thereto shall have entered into such other cash management, paying agent, escrow arrangement or similar arrangements, in each case in form and substance satisfactory to Purchaser Representative, required by Purchaser Representative to give full effect to the Article IV hereof and any other provisions or definitions of this Agreement reasonably related thereto.

(f) Misdirected Payments. If any Note Party or any of its Affiliates receives any GSK Proceeds, Issuer shall cause such amounts to be remitted to the Collection Account within [***] after receipt, without deduction, withholding, set-off or counterclaim and prior to the payment of any Taxes. If Purchaser Representative receives any payment that does not constitute GSK Proceeds (other than any payment from a Note Party or the Company pursuant to the Note Documents), Purchaser Representative shall remit such amounts to Issuer within [***] after becoming aware of such receipt.

(g) Licensee Offsets. If the Licensee exercises any Non-Permitted Set-Off against any GSK Proceeds (such amount, an “Issuer Offset Obligation”), Issuer shall promptly (and in any event no later than [***] following the payment of the GSK Proceeds affected by such Non-Permitted Set-Off) pay, or cause to be paid, to the Collection Account the amount of such Issuer Offset Obligation. Following such payment, Issuer shall be entitled to any amounts subsequently recovered from the Licensee in respect of such Non-Permitted Set-Off.

(h) Remittances; Trust. All remittances under this Section 4.01 shall be made (i) without set-off or deduction (except as required by Applicable Law) and (ii) by wire transfer of immediately available funds to the Collection Account (if payable to Purchaser Representative) or to the account set forth in Exhibit J (if payable to Issuer), or to such other account as the relevant payee may designate in writing at least [***] prior to any such payment. Each Party shall hold any amounts received by it to which the other Party is entitled under this Section 4.01 in trust, without any right, title or interest therein.

(i) Valid Invoice Issuances. Promptly (and in any event no later than [***]) following the earlier of (i) receipt by the Company from GSK of a GSK Payment Notice that is not also received by Purchaser Representative, (ii) receipt by the Company of notice from the Purchaser’s Representative that a Commercial Milestone Event or Sales Milestone Event (each as defined in the GSK Agreement) giving rise to GSK Proceeds has been achieved, or (iii) the Company

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obtaining Knowledge that a Commercial Milestone Event or Sales Milestone Event (each as defined in the GSK License Agreement) giving rise to GSK Proceeds has been achieved but that GSK has not provided a GSK Payment Notice in accordance with the terms of the GSK Agreement, the Company shall issue a Valid Invoice (as defined in the GSK License Agreement) to GSK in respect of the applicable Commercial Milestone Payment or Sales Milestone Payment (each as defined in the GSK License Agreement) pursuant to Section 6.3 or Section 6.4 of the GSK Agreement, as applicable, and provide a copy of such Valid Invoice (along with proof of delivery to GSK) to the Purchaser’s Representative. Promptly (and in any event no later than [***]) following a determination under Section 6.8(b) of the GSK Agreement that additional amounts are owed by GSK to the Company with respect to any GSK Proceeds, the Company shall issue a Valid Invoice (as defined in the GSK Agreement) to GSK in respect of such amounts, and provide a copy of such Valid Invoice (along with proof of delivery to GSK) to Purchaser Representative.

Section 4.02 Application of Payments. On each Payment Date, the GSK Proceeds received in the Collection Account during the immediately preceding Calendar Quarter, together with any other amounts then on deposit in the Collection Account that constitute proceeds of GSK Proceeds, shall be applied by the Account Bank pursuant to the Control Agreement, at the direction of Purchaser Representative, in accordance with the Quarterly Payment Certificate delivered by or on behalf of Issuer, by payment in cash in the following order of priority:

(a) first, to Meiji in satisfaction of any Meiji Payments to the extent then due and payable by the Company or Issuer during such Calendar Quarter pursuant to the Meiji License Agreement.

(b) second, to Purchaser Representative and Purchasers to be applied in the following order:

(i) to Purchaser Representative, an amount equal to any accrued and unpaid fees, expenses and indemnities then due and payable to Purchaser Representative under this Agreement or any other Note Document, including any amounts due under Section 4.05;

(ii) to the relevant Purchasers, an amount equal to all outstanding Protective Advances and all accrued and unpaid interest thereon;

(iii) to Purchasers, an amount equal to all accrued and unpaid Fixed Interest then due and payable on the outstanding Principal Amount of the Notes; provided, that, any Quarterly Interest Shortfall shall be treated as Accreted Principal in accordance with Section 3.01(c);

(iv) to Purchasers, an amount equal to all other Obligations then due and payable to Purchasers under the Note Documents;

(v) to Purchasers, to the extent the GSK Proceeds for the immediately preceding Calendar Quarter exceed the amounts applied pursuant to the foregoing clauses of this Section 4.02 (such excess amount, the “Amortization Payment”), the Amortization Payment shall be applied to repay outstanding principal on the Notes at par until the Notes are repaid in full; and

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(c) third, after Payment in Full, to Issuer, any remaining available amounts subject to the Royalty Purchase Agreement and any other document or instrument effecting an assignment of any portion of the GSK Proceeds after Payment in Full.

Section 4.03 Quarterly Payment Certificates.

(a) No later than [***] (or such shorter period agreed to by Purchaser Representative) prior to each Payment Date, Issuer shall, or the Servicer on behalf of Issuer shall, deliver to Purchaser Representative a certificate (each, a “Quarterly Payment Certificate”), in form and substance reasonably satisfactory to Purchaser Representative, certified by a Senior Officer thereof, and setting forth in reasonable detail:

(i) the aggregate amount of GSK Proceeds received in the Collection Account during the immediately preceding Calendar Quarter, together with any other amounts then on deposit in the Collection Account that constitute proceeds of GSK Proceeds;

(ii) the calculation of each amount to be applied on such Payment Date pursuant to each clause of Sections 4.02(a) and Section 4.02(b) and a duly completed wire transfer form or other draft payment instructions and the wire information for each applicable recipient of such amount as is required by the Control Agreement or the Account Bank (the “Wire Transfer Forms”); and

(iii) the cash balance in the Collection Account after giving effect to the application of the payments under Section 4.02 for which such certificate relates.

(b) Purchaser Representative shall have a period of [***] following receipt of each Quarterly Payment Certificate to review such information and notify Issuer and/or the Servicer of any objection thereto (each, a “Payment Objection Notice”). If Purchaser Representative delivers a Payment Objection Notice, (i) Issuer and/or Servicer agree to negotiate in good faith with Purchaser Representative for a period of [***] and (ii) thereafter, the payment amounts to be applied on the applicable Payment Date pursuant to Section 4.02(a) shall be the amounts that Purchaser Representative determines, in its good faith business judgment, to be correct, as set forth in such Payment Objection Notice, and such Payment Objection Notice shall supersede the applicable Quarterly Payment Certificate and the Wire Transfer Forms for purposes of Purchaser Representative’s payment instructions to the Account Bank under Section 4.02. Each Payment Objection Notice shall set forth in reasonable detail Purchaser Representative’s determination of the applicable payment amounts or other correction and the basis for any variance from the Quarterly Payment Certificate and the Wire Transfer Forms.

(c) Each Quarterly Payment Certificate delivered pursuant to this Section 4.02 shall be accompanied by reasonable supporting documentation, including copies of any Royalty Reports or GSK Payment Notices received during the applicable Calendar Quarter to the extent not previously delivered to Purchaser Representative pursuant to Section 8.03(b).

(d) Notwithstanding anything to the contrary contained herein or in any other Note Document, any delivery, transmission or submission by Purchaser Representative or any Purchaser to the Account Bank of any Quarterly Payment Certificate, Payment Objection Notice, Wire Transfer Forms or related payment instruction, or any designation of, or service by, Purchaser Representative or any Purchaser as the contact for any verbal callback or other confirmation required by the Account Bank in connection therewith, shall be made solely as an accommodation to Issuer and/or the Servicer and in reliance solely on information furnished by or on behalf of

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Issuer and/or the Servicer, without any duty to verify, investigate, confirm or authenticate the accuracy, completeness, validity or authorization thereof. Neither Purchaser Representative nor any Purchaser, nor any of their respective officers, employees, representatives or any other Indemnitee, shall have any liability or responsibility whatsoever, whether in contract, tort, equity, statute or otherwise, for any error, omission, inaccuracy, misstatement, unauthorized instruction, misdirection, incorrect payment, failed payment, delayed payment, overpayment, underpayment or non-receipt of funds arising out of or relating to any such certificate, notice, form, information or instruction (other than gross negligence or willful misconduct). To the fullest extent permitted by Applicable Law, Issuer, the Servicer and each other Note Party hereby irrevocably, absolutely and unconditionally waives, releases and agrees not to sue Purchaser Representative, any Purchaser or any of their respective officers, employees, representatives or any other Indemnitee for any claims, demands, actions, losses, liabilities, damages, costs or expenses, whether direct, indirect, consequential or otherwise, known or unknown, accrued or unaccrued, arising out of or relating to any such certificate, notice, form, information, instruction, related submission to the Account Bank or verbal callback or other confirmation with the Account Bank (other than gross negligence or willful misconduct); and no such delivery, transmission, submission, designation or service shall constitute any representation, warranty, certification, confirmation, adoption or approval by Purchaser Representative, any Purchaser or any such Indemnitee, and Issuer, the Servicer and each other Note Party shall remain solely responsible therefor.

Section 4.04 Interest on Late Payments. If any amount payable by Issuer to Purchaser Representative hereunder is not paid when due (whether at stated maturity, by acceleration or otherwise; it being understood that compliance with Section 3.01(c) constitutes payment of the Quarterly Interest Shortfall), interest shall accrue on any such unpaid amounts, both before and after judgment during the period from and including the applicable due date, to but excluding the day the overdue amount is paid in full, at a rate per annum equal to the Default Rate. Interest accruing under this Section 4.04 shall be payable on demand of Purchaser Representative. For the avoidance of doubt, Fixed Interest that is not paid in cash on the date due but that is added to the Principal Amount of the Notes as Accreted Principal in accordance with Section 3.01(c) shall accrue interest at the Fixed Interest from the date at which it is incorporated as Accreted Principal and shall thereafter accrue interest at the Default Rate in the event that the Principal Amount of the Notes generally bears interest at the Default Rate.

Section 4.05 Administration and Enforcement Expenses. Issuer shall on each Payment Date in accordance with Section 4.02 reimburse Purchaser Representative for all reasonable and documented out-of-pocket costs and expenses incurred by Purchaser Representative (including the reasonable fees and expenses of one outside counsel to Purchaser Representative) as a consequence of or in connection with the administration (including any amendment, restatement, amendment and restatement, supplement or other modification of the Note Documents), monitoring, protection or enforcement of the Note Documents, the Collateral or Purchaser Representative’s rights and remedies, including as a result of any Default, Event of Default, Prepayment Trigger, mandatory prepayment, restructuring or workout of the Notes.

Section 4.06 Making of Payments. Notwithstanding anything to the contrary contained herein, any Payment stated to be due hereunder or under any Note on a given day in a specified month shall be made on the next occurring Payment Date.

Section 4.07 Setoff or Counterclaim. Each payment by Issuer or any other Note Party under this Agreement or under any Note shall be made without set-off, deduction, defense, recoupment or counterclaim. Purchaser Representative shall have the right to set off any and all amounts owed by the Note Parties and/or any of their Subsidiaries under the Note Documents as provided in Section 10.03.

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Article V

TAXES

Section 5.01 Taxes.

(a) Any and all payments by or on account of any obligation of any Note Party or the Company under any Note Document shall be made without deduction or withholding for any Taxes, except as required by Applicable Law. If any applicable withholding agent is required by Applicable Law to make any withholding or deduction of Taxes in respect of any payment by or on account of any obligation of any Note Party or the Company under any Note Document (including (for the avoidance of doubt) any Taxes withheld or deducted by GSK, Issuer or any other applicable withholding agent in respect of any GSK Proceeds), then (i) the applicable withholding agent shall be entitled to make such withholding or deduction and shall timely pay directly to the relevant Governmental Entity the full amount required to be so withheld or deducted and (ii) if any such Tax withheld or deducted is a Covered Tax, the outstanding Principal Amount with respect to the applicable Notes at such time shall be increased by an amount equal to such Covered Tax plus any additional Covered Tax resulting from such increase in the Principal Amount.

(b) If any Covered Taxes are payable or paid by any Purchaser, whether or not such Covered Taxes were correctly or legally imposed or asserted by the relevant Governmental Entity, then the outstanding Principal Amount at such time shall be increased by (i) the amount of such Covered Taxes plus any additional Covered Tax resulting from such increase in the Principal Amount and (ii) the amount of all reasonable expenses arising therefrom or with respect thereto. Such Purchaser shall promptly deliver to Issuer a certificate informing Issuer of any such amounts.

(c) Status of Purchasers.

(i) Any Purchaser that is eligible for an exemption from or reduction of withholding Tax with respect to any payments made under any Note Document shall deliver to Issuer, at the time or times reasonably requested by Issuer, such properly completed and executed documentation reasonably requested by Issuer as will permit such payments to be made without withholding or at a reduced rate of withholding. In addition, any Purchaser, if reasonably requested by Issuer, shall deliver such other documentation prescribed by Applicable Law or reasonably requested by Issuer as will enable Issuer to determine whether or not such Purchaser is subject to backup withholding or information reporting requirements. Notwithstanding anything to the contrary in the preceding two sentences, the completion, execution and submission of such documentation (other than such documentation set forth in clauses (A), (B) and (D) of Section 5.01(c)(ii)) shall not be required if in Purchaser’s reasonable judgment such completion, execution or submission would subject such Purchaser to any unreimbursed cost or expense or would materially prejudice the legal or commercial position of such Purchaser.

(ii) Without limiting the generality of the foregoing:

(A) any Purchaser that is a U.S. Person shall deliver to Issuer on or prior to the date on which such Purchaser becomes a Purchaser under this Agreement (and from time to time thereafter upon the reasonable request of Issuer), two duly executed copies of IRS Form W-9 certifying that such Purchaser is exempt from U.S. federal backup withholding tax;

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(B) any Foreign Purchaser shall, to the extent it is legally eligible to do so, deliver to Issuer on or about the date on which such Foreign Purchaser becomes a Purchaser under this Agreement (and from time to time thereafter upon the reasonable request of Issuer), whichever of the following is applicable:

(1) in the case of a Foreign Purchaser claiming the benefits of an income tax treaty to which the U.S. is a party, two duly executed copies of IRS Form W-8BEN or IRS Form W-8BEN-E establishing an exemption from, or reduction of, U.S. federal withholding Tax;

(2) two duly executed copies of IRS Form W-8ECI;

(3) in the case of a Foreign Purchaser claiming the benefits of the exemption for portfolio interest under Section 881(c) of the Code, (x) a certificate substantially in the form of Exhibit L-1 to the effect that such Foreign Purchaser is not a “bank” within the meaning of Section 881(c)(3)(A) of the Code, a “10 percent shareholder” of Issuer within the meaning of Section 871(h)(3)(B) of the Code, a “controlled foreign corporation” related to Issuer as described in Section 881(c)(3)(C) of the Code (a “U.S. Tax Compliance Certificate”) and (y) two duly executed copies of IRS Form W-8BEN or IRS Form W-8BEN-E; or

(4) to the extent a Foreign Purchaser is not the beneficial owner, two duly executed copies of IRS Form W-8IMY, accompanied by IRS Form W-8ECI, IRS Form W-8BEN, IRS Form W-8BEN-E, a U.S. Tax Compliance Certificate substantially in the form of Exhibit L-2 or Exhibit L-3, IRS Form W-9, or other certification documents from each beneficial owner, as applicable; provided, that, if the Foreign Purchaser is a partnership (and not a participating Purchaser) and one or more direct or indirect partners of such Foreign Purchaser are claiming the portfolio interest exemption, such Foreign Purchaser may provide a U.S. Tax Compliance Certificate substantially in the form of Exhibit L-4 on behalf of such direct and/or indirect partner(s);

(C) any Foreign Purchaser shall, to the extent it is legally eligible to do so, deliver to Issuer on or prior to the date on which such Foreign Purchaser becomes a Purchaser under this Agreement (and from time to time thereafter upon the reasonable request of Issuer), two duly executed copies of any other form prescribed by Applicable Law as a basis for claiming exemption from or a reduction in U.S. federal withholding Tax, together with such supplementary documentation as may be prescribed by Applicable Law or reasonably requested by Issuer to permit Issuer to determine the withholding or deduction required to be made; and

(D) if a payment made to a Purchaser under any Note Document would be subject to U.S. federal withholding Tax imposed by FATCA if such Purchaser were to fail to comply with the applicable reporting requirements of FATCA (including those contained in Section 1471(b) or 1472(b) of the Code, as applicable), such Purchaser shall deliver to Issuer at the time or times reasonably requested by Issuer such documentation prescribed by Applicable Law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code) and such additional documentation reasonably requested by Issuer as may be necessary for Issuer to comply with its obligations under FATCA and to determine whether such Purchaser has complied with such Purchaser’s obligations under FATCA or to determine the amount, if any, to deduct and withhold from such payment. Solely for purposes of this clause (D), “FATCA” shall include any amendments made to FATCA after the date of this Agreement.

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(iii) If any form, certification or other documentation previously delivered by any Purchaser expires or becomes obsolete or inaccurate in any respect, such Purchaser shall promptly update such form or certification or promptly notify Issuer in writing of its legal ineligibility to do so. Notwithstanding anything to the contrary, nothing in this Section 5.01(c) shall require any Purchaser to deliver any documentation that any such Purchaser is legally ineligible to provide.

Section 5.02 Receipt of Payment. Promptly after the date of any payment of Taxes by any Note Party or the Company pursuant to this Article V, Issuer shall furnish to Purchaser Representative the original or a certified copy of a receipt evidencing payment thereof or other evidence reasonably satisfactory to Purchaser Representative.

Section 5.03 Other Taxes. Issuer shall timely pay to the relevant Governmental Entity in accordance with Applicable Law any Other Taxes.

Section 5.04 Refunds. If any Purchaser determines, in its sole discretion exercised in good faith, that it has received a refund of any Covered Taxes, it shall promptly notify Issuer of the amount of any such refund (including refunds of any related penalties, interest or other charges imposed by the relevant Governmental Entity and any additional interest paid by the relevant Governmental Entity) calculated net of all out-of-pocket expenses (including Taxes) (such net amount, a “Refund Amount”). If a Refund Amount is received, the outstanding Principal Amount at such time shall be reduced by any such Refund Amount. If Purchaser is required to repay any previously refunded amount to a Governmental Entity, any such payment along with the amount of any related interest, penalties, additions thereto and related reasonable out-of-pocket expenses will increase the outstanding Principal Amount at such time. Notwithstanding anything to the contrary in this Section 5.04, in no event will any Refund Amount reduce the outstanding Principal Amount to the extent it would place Purchaser in a less favorable net after-tax position than Purchaser would have been in if the Covered Taxes giving rise to such refund had not been deducted, withheld or otherwise imposed and added to the outstanding Principal Amount. This Section 5.04 shall not be construed to require any Purchaser to make available its tax returns (or any other information relating to its taxes that it deems confidential) to Issuer or any other Person.

Section 5.05 Registered Obligation.

(a) Issuer shall establish and maintain, at its address referred to in Section 13.03, (i) a Register in which Issuer agrees to register by book entry the interests (including any rights to receive payment hereunder) of Purchaser in the Notes, each of its obligations under this Agreement to participate in the Notes, and any assignment of any such interest, obligation or right, and (ii) accounts in the Register in accordance with its usual practice in which it shall record (1) the names and addresses of Purchaser(s) (and each change thereto pursuant to Sections 13.01 and 13.02), (2) the amount of the Notes described in clause (i) above, (3) the amount of any principal or interest due and payable or paid, and (4) any other payment received and its application to the Notes. The entries in the Register shall be conclusive, in the absence of manifest error, and Issuer and each Purchaser shall treat each person whose name is recorded in the Register as the owner of the Notes for all purposes of this Agreement, notwithstanding notice to the contrary.

(b) Upon surrender of any Note to Issuer for registration of transfer or exchange (and in the case of a surrender for registration of transfer accompanied by a written instrument of transfer duly executed by the registered holder of such Note or such holder’s attorney duly authorized in writing and accompanied by the relevant name, address and other information for notices of each transferee of such Note or part thereof), within [***] thereafter, Issuer shall execute and deliver, at Issuer’s expense, one or more new Notes (as requested by the holder thereof) in exchange

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therefor, in an aggregate Principal Amount equal to the unpaid Principal Amount of the surrendered Note. Each such new Note shall be payable to such Person as such holder may request and shall be substantially in the form of Exhibit N. Each such new Note shall be dated and bear interest from the date to which interest shall have been paid on the surrendered Note or dated the date of the surrendered Note if no interest shall have been paid thereon.

(c) Notwithstanding anything to the contrary contained in any Note Document or elsewhere, the Notes (including any Note evidencing such Notes) are registered obligations, the right, title and interest of Purchaser and its assignees in and to the Notes shall be transferable only upon notation of such transfer in the Register and no assignment thereof shall be effective until recorded therein. The parties hereto intend that the Notes will be at all times maintained in “registered form” within the meaning of Section 5f.103-1(c) of the U.S. Treasury Regulations, Sections 163(f), 871(h)(2) and 881(c)(2) of the Code and any related regulations (and any successor provisions).

Section 5.06 No Partnership. This Agreement is not intended to create a partnership, association or joint venture between or among Purchaser Representative and/or Issuer or any Subsidiary. Each Party agrees not to refer to the other as a “partner” or the relationship as a “partnership” or “joint venture.”

Section 5.07 Tax Treatment. For U.S. federal income and applicable state and local and non-U.S. income Tax purposes, each Party and its respective Affiliates shall treat (a) the Notes as indebtedness and (b) Issuer as the beneficial owner of the GSK Proceeds. Each Party and its respective Affiliates shall not take any position that is inconsistent with the foregoing sentence on any Tax return or for any other Tax purpose (including determination of any withholding responsibilities in respect of any amounts payable under any Note Document) unless, in each case, otherwise required by (i) a change in applicable Law after the date hereof or (ii) a good faith resolution of a Tax audit or other administrative or judicial Tax proceeding.

Section 5.08 Mitigation. If the outstanding Principal Amount with respect to any Notes is increased as a result of any Covered Taxes under Section 5.01, then the applicable Purchaser shall (at the request of Issuer) take any steps reasonably requested by Issuer to eliminate or reduce further Covered Taxes to be incurred in the future, provided, that, no Purchaser shall be obligated under this Section 5.08 to undertake any action that would subject such Purchaser to any unreimbursed cost or expense or that would otherwise be disadvantageous to such Purchaser. Issuer will pay all reasonable costs and expenses incurred by any Purchaser in connection with any such actions requested under this Section 5.08.

Section 5.09 Survival. Each party’s obligations under this Article V shall survive any assignment of rights by, or the replacement of, a Purchaser, and the repayment, satisfaction or discharge of all obligations under any Note Document.

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Article VI

CLOSING CONDITIONS

Section 6.01 Conditions Precedent to the Purchase of the Note. The obligation of each Purchaser to purchase the Note on the Closing Date shall be subject to the fulfillment, to the sole satisfaction of Purchaser Representative, of all of the following conditions precedent in addition to the conditions specified in Section 2.01(a) and Section 2.03(a):

(a) Issuer shall have executed and delivered to Purchaser Representative the Note, dated the Closing Date.

(b) Purchaser Representative shall have received on or before the Closing Date an executed copy of an opinion of Wilmer Cutler Pickering Hale and Dorr LLP, counsel to the Note Parties and the Company, dated the Closing Date in form and substance reasonably satisfactory to Purchaser Representative.

(c) The Note Parties and the Company shall each have delivered to Purchaser Representative a certificate, dated the Closing Date, of a Senior Officer (the statements in which shall be true and correct on and as of the Closing Date): (i) attaching copies, certified by the Secretary of State of the State of Delaware as of a recent date, of such party’s certificate of incorporation or other organizational documents (together with any and all amendments thereto); (ii) attaching copies, certified by such officer as true and complete, of resolutions of the Board of Directors (or similar governing body) of such party authorizing and approving the execution, delivery and performance by such party of the Note Documents to which it is a party and the transactions contemplated herein and therein; (iii) setting forth the incumbency of the officer of such party who executed and delivered such Note Documents, including therein a signature specimen of each such officer; and (iv) attaching copies, certified by such officer as true and complete, of certificates of the appropriate Governmental Entity of the jurisdiction of formation, stating that such party was in good standing under the Laws of such jurisdiction as of the Closing Date (or a date immediately prior thereto acceptable to Purchaser Representative).

(d) This Agreement, the other Note Documents and the Royalty Purchase Agreement shall have been executed and delivered to Purchaser Representative by each party thereto (other than Purchaser Representative, if applicable), and the Note Parties shall have delivered, or caused to be delivered, such other documents as Purchaser Representative reasonably requested, in each case, in form and substance satisfactory to Purchaser Representative.

(e) The Transaction Documents shall be in full force and effect, including the appointment of an Independent Manager of Issuer and Holdings in accordance with the applicable terms herein and the SPV Organizational Documents.

(f) No event shall have occurred and be continuing that (i) constitutes a Default, Event of Default or Prepayment Trigger or (ii) could reasonably be expected to constitute a Material Adverse Effect (without giving effect to the cure period applicable to a Prepayment Trigger based thereon), in each case both at the time of, and immediately after giving effect to, the issuance and purchase of the Notes on the Closing Date.

(g) There shall not exist any action, suit, investigation or proceeding pending or threatened in any court or before an arbitrator or Governmental Entity that could reasonably be expected, either individually or in the aggregate, to have a Material Adverse Effect.

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(h) All necessary governmental and third-party approvals, notices, consents and filings, including in connection with the Note, the Security Agreement, the Contribution Agreements and the other Note Documents shall have been obtained or made and shall remain in full force and effect.

(i) Issuer shall have delivered to Purchaser Representative certified copies of UCC, United States Patent and Trademark Office and United States Copyright Office, tax and judgment lien searches, or equivalent reports or searches, each of a recent date listing all effective financing statements, lien notices or comparable documents that name the Note Parties or the Company as debtor and that are filed in those state and county jurisdictions in which the Note Parties or the Company are organized or maintains its principal place of business and such other searches that Purchaser Representative deems necessary or appropriate, none of which encumber the Transferred Assets covered or intended to be covered by the Note Documents (other than any Permitted Liens and other Liens acceptable to Purchaser Representative).

(j) Purchaser Representative shall have received all UCC financing statements in appropriate form for filing under the UCC, and all other certificates, agreements, instruments, filings, recordings and other actions that are necessary or reasonably requested by Purchaser Representative in order to establish, protect, preserve and perfect the security interest in the assets of the Note Parties constituting Collateral as provided in the Security Agreement as a valid and perfected first priority security interest (subject to Permitted Liens and, solely with respect to the continuing first priority granted to Secured Party under the Note Documents, Permitted Liens entitled to priority under Applicable Law) with respect to such assets shall have been duly effected (or arrangements therefor satisfactory to Purchaser Representative shall have been made).

(k) Purchaser Representative shall have received all documentation and other information required by bank regulatory authorities under applicable “know your customer” and anti-money laundering rules and regulations, including without limitation, the Patriot Act, including and the information described in Section 13.18.

(l) A portion of the initial purchase price of the Notes in a minimum aggregate amount of $[***] shall be retained in the Collection Account for purposes of supporting all Collection Account Fees and other fees, expenses and charges of the Account Bank.

(m) Purchaser Representative shall have received a certificate signed by a Senior Officer of the Note Parties certifying (i) that the conditions specified in this Section 6.01 have been satisfied, (ii) that the Note Parties (immediately after giving effect to the transactions contemplated hereby and the incurrence of Indebtedness related thereto), taken as a consolidated group, and Issuer, individually, in each case the Note Parties taken as a consolidated group, and Issuer, individually, in each case is Solvent and (iii) that Issuer does not as of the Closing Date have any Disqualified Capital Stock outstanding.

(n) Issuer shall have paid the Purchaser Expense Amount.

(o) Purchaser Representative shall have received such other approvals, opinions, documents or materials as Purchaser may reasonably request.

(p) Issuer shall have delivered to Purchaser Representative a complete IRS Form W-9 certifying its U.S. status and its exemption from U.S. federal backup withholding tax.

(q) Purchaser Representative shall have received a letter of direction signed by a Senior Officer of the Note Parties, instructing and authorizing Purchaser Representative to make the disbursements of the Notes on the Closing Date as set forth therein.

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Article VII

REPRESENTATIONS AND WARRANTIES

Section 7.01 Note Parties Representations and Warranties. Each Note Party hereby represents and warrants to Purchaser Representative as of the date of this Agreement (except for any representations and warranties which speak as to a specific date, which representations and warranties shall be made as of the date specified), as follows:

(a) Existence. Each Note Party is a limited liability company duly organized, validly existing and in good standing under the Laws of the State of Delaware. Each Note Party has all limited liability company power and authority and all requisite licenses, permits, franchises, authorizations, consents and approvals of Governmental Entities required to (i) own or lease its assets and carry on its business as now conducted and as proposed to be conducted in connection with the transactions contemplated by the Transaction Documents and the GSK Agreement and (ii) execute, deliver and perform its obligations under the Note Documents to which it is a party, except, in each case, as could not reasonably be expected to have (x) a Material Adverse Effect or (y) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds. Each Note Party is duly qualified to transact business and is in good standing in every jurisdiction in which such qualification or good standing is required by Applicable Law (except where the failure to be so qualified or in good standing could not result in, and could not reasonably be expected to have resulted in (a) a Material Adverse Effect, or (b) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds).

(b) No Conflicts. None of the execution and delivery by any Note Party of any of the Note Documents to which it is a party, the performance by any Note Party of the obligations contemplated hereby or thereby or the consummation of the transactions contemplated hereby or thereby will: (i) contravene, conflict with, result in a breach, violation, cancellation or termination of, constitute a default (with or without notice or lapse of time, or both) under, require prepayment under, give any Person the right to exercise any remedy (including termination, cancellation or acceleration) or obtain any additional rights under, or accelerate the maturity or performance of or payment under, in any material respect, (A) any Applicable Law, (B) any judgment, order, writ, decree, permit or license of any Governmental Entity to which Holdings or any of its Subsidiaries or any of their respective assets or properties may be subject or bound, (C) any term or provision of any Contract (other than the GSK Agreement and the Meiji License Agreement) to which Holdings or any of its Subsidiaries is a party or by which Holdings or any of its Subsidiaries or any of their respective assets or properties is bound or committed, (D) any term or provision of any of their respective Organizational Documents or (E) the GSK Agreement and the Meiji License Agreement, except (x) in the case of clause (A) or (C) above where any such event could not reasonably be expected to have (1) a Material Adverse Effect, or (2) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive payments based on the GSK Proceeds and (y) in the case of clause (B) above where any such event could not reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive payments based on the GSK Proceeds; or (ii) except as provided in or contemplated by any of the Transaction Documents, result in or require the creation or imposition of any Lien on the Transferred Assets, the Patents, the Licensed Product or the GSK Proceeds.

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(c) Liens. Other than Permitted Liens, no Note Party has granted, nor does there exist, any Lien on the Transferred Assets or the GSK Proceeds (other than Permitted Liens, and, solely with respect to the continuing first priority granted to Secured Party under the Note Documents, Permitted Liens entitled to priority under Applicable Law).

(d) Authorization. Each Note Party has all powers and authority to execute and deliver, and perform its obligations under, the Note Documents to which it is party and to consummate the transactions contemplated hereby and thereby. The execution and delivery of each of the Note Documents to which such Note Party is party and the performance by such Note Party of its obligations hereunder and thereunder have been duly authorized by such Note Party. Each of the Note Documents to which each Note Party is party has been duly executed and delivered by such Note Party. Each of the Note Documents to which each Note Party is party constitutes the legal, valid and binding obligation of such Note Party, enforceable against such Note Party in accordance with its respective terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or similar Applicable Laws affecting creditors’ rights generally, general equitable principles and principles of public policy.

(e) Security Interests. Upon giving effect to the Contribution (and subject to the terms and conditions thereof) and the Issuer Contribution Agreement, (i) Issuer shall be the exclusive owner of the entire right, title (legal and equitable) and interest in, to and under the Transferred Assets, free and clear of all Liens, other than Permitted Liens; (ii) Issuer shall be entitled to be the sole recipient of all payments in respect of the GSK Proceeds; and (iii) Issuer shall own (or have a license to) all assets that were previously owned (or licensed to) the Company necessary to perform its obligations under the GSK Agreement. The GSK Proceeds constituting Collateral granted to Purchaser Representative on the Closing Date has not been pledged, sold, assigned, transferred, conveyed or granted by Issuer to any other Person, in each case, other than Permitted Liens. Upon granting by Issuer of the security interests in the GSK Proceeds to Purchaser Representative pursuant to the Security Agreement, and the completion of all actions necessary to perfect such security interests, Purchaser Representative shall acquire a first priority security interest (subject to Permitted Liens and, solely with respect to the continuing first priority granted to Secured Party under the Note Documents, Permitted Liens entitled to priority under Applicable Law) in the GSK Proceeds free and clear of all Liens, other than Permitted Liens. Issuer has not caused, and to the Knowledge of Issuer no other Person has caused, the claims and rights of Purchaser Representative created by any Note Document in and to the GSK Proceeds, to be subordinated to any creditor or any other Person.

(f) Consents. The execution and delivery by each Note Party of the Note Documents to which it is party, the performance by such Note Party of its obligations hereunder and thereunder and the consummation of any of the transactions contemplated hereunder and thereunder (including the granting of security interests in the GSK Proceeds to Purchaser Representative) do not require any consent, approval, license, order, authorization or declaration from, notice to, action or registration by or filing with any Governmental Entity or any other Person, except for (i) the filing of any applicable notices under securities laws, (ii) the filings necessary to perfect Liens created by the Note Documents, (iii) those previously obtained and in full force and effect, (iv) consent, filings and registrations in connection with the Contribution as contemplated by the Issuer Contribution Agreement and (v) the Licensee Instruction Letters.

(g) Proceedings. Except as set forth on Schedule 7.01(g), there is no action, suit, arbitration proceeding, claim, citation, summons, subpoena, investigation or other proceeding (whether civil, criminal, administrative, regulatory, investigative or informal, and including by or before a Governmental Entity) pending or, to the Knowledge of such Note Party, threatened in

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writing by or against such Note Party or any of its Subsidiaries, at law or in equity, that (i) if adversely determined, could reasonably be expected to have (A) a Material Adverse Effect, or (B) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds, or (ii) challenges or seeks to prevent or delay the consummation of any of the transactions contemplated by any of the Note Documents to which such Note Party is party.

(h) Solvency. Upon consummation of the transactions contemplated by the Note Documents and the application of the proceeds from the Note (a) the present fair saleable value of the properties and assets of, the Note Parties taken as a consolidated group, and Issuer, individually, in each case on a going concern basis will be greater than the sum of its debts, liabilities and other obligations, including contingent liabilities, (b) the present fair saleable value of the properties and assets of, the Note Parties taken as a consolidated group, and Issuer, individually, in each case on a going concern basis will not be less than the amount that would be required to pay its probable liabilities on its existing debts, liabilities and other obligations, including contingent liabilities, as they become absolute and matured, (c), the Note Parties taken as a consolidated group, and Issuer, individually, in each case will generally be able to realize upon its assets and pay its debts, liabilities and other obligations, including contingent obligations, as they become absolute and matured, (d), the Note Parties taken as a consolidated group, and Issuer, individually, in each case will not have unreasonably small capital with which to engage in its business as now conducted, (e), the Note Parties taken as a consolidated group, and Issuer, individually, in each case has not incurred, will not incur and does not have any present plans or intentions to incur debts or other obligations or liabilities beyond its ability to pay such debts or other obligations or liabilities as they become absolute and matured, (f), the Note Parties taken as a consolidated group, and Issuer, individually, in each case will not have become subject to any Insolvency Event and (g), the Note Parties taken as a consolidated group, and Issuer, individually, in each will not have been rendered insolvent within the meaning of any Applicable Law. No step has been taken by any Note Party or, to its Knowledge, any other Person to make Holdings subject to an Insolvency Event (clauses (a) through (g), collectively, “Solvent”).

(i) No Default. No Default, Event of Default or Prepayment Trigger has occurred and is continuing, and no such event will occur upon the issuance of the Notes.

(j) Taxes. Each Note Party has filed (or caused to be filed) all Tax returns and reports required by Applicable Law to have been filed by it and has paid all Taxes required to have been paid by it (including in its capacity as a withholding agent), except any such Taxes that are being contested in good faith by appropriate proceedings, diligently conducted, and for which adequate reserves have been provided in accordance with GAAP. As of the date hereof, there is no unresolved claim by a taxing authority concerning its tax liability for any period for which returns have been filed or were due, other than those contested in good faith by appropriate proceedings and with respect to which adequate reserves have been established and are being maintained in accordance with GAAP.

(k) Broker’s Fees. Except as set forth on Schedule 7.01(k), Neither the Note Parties nor the Company has taken any action that would entitle any person or entity to any commission or broker’s fee in connection with the transactions contemplated by this Agreement.

(l) Investigations. No Note Parties (a) has violated or, is in violation of, or to its Knowledge, is under investigation by a Governmental Entity with respect to, has been threatened to be charged with or been given notice of any violation of, any Applicable Law or any judgment, order, writ, decree, injunction, stipulation, consent order, permit or license granted, issued or

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entered by any Governmental Entity and (b) is subject to any judgment, order, writ, decree, injunction, stipulation, consent order, permit or license granted, issued or entered by any Governmental Entity, in each case, that could reasonably be expected to have a material liability to Issuer. Issuer is in compliance with the requirements of all Applicable Laws.

(m) Intellectual Property.

(i) Patents. Schedule 7.01(m)(i) sets forth an accurate and complete list as of the Closing Date of all unexpired issued Patents and pending Patent applications owned or controlled by Issuer or the Company and, that are used in, relating to, or necessary to the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory (collectively, the “Listed Patents”). Other than as set forth on Schedule 7.01(m)(i) there is no Patent owned or licensed by the Company, its Affiliates, the Note Parties or its Affiliates relating to the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory. Schedule 7.01(m)(i) specifies with respect to each Listed Patent (i) the jurisdictions in which such Listed Patent is filed, pending, allowed, granted or issued, (ii) the patent number, registration number, or patent application number, as applicable, (iii) the registered owner thereof (iv) the Licensed Product to which such Listed Patent or Listed Patent application relates, (v) the licensor of each Licensed Patent (if different from registered owner), and (vi) the title of such Patent.

(ii) No Litigation. None of the Note Parties nor, the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that there are any pending or threatened litigations, interferences, reexaminations, oppositions or like Patent Office proceedings involving any of the Patents on Schedule 7.01(m)(i) or challenging the ownership of the rights of the Company in and to the Owned Patents.

(iii) Ownership of the Patents. Company (or the Note Party indicated on Schedule 7.01(m)(i)) is the sole and exclusive owner of the entire right, title and interest in each of the Owned Patents (other than rights granted to GSK pursuant to the GSK Agreement). The Owned Patents are not subject to any encumbrance, Lien or claim of ownership by any Third Party (other than rights granted to GSK pursuant to the GSK Agreement). Company or the Note Parties have a valid license to each of their respective Licensed Patents, in each case pursuant to the terms of the applicable In-License pursuant to which Company or the applicable Note Party has in-licensed such Licensed Patent(s). Each inventor named on the Owned Patents has executed a contract assigning their entire right, title and interest in and to such Patents and the inventions embodied, described and/or claimed therein, to the owner thereof, and each such contract has been duly recorded at the relevant Patent Office (including, as applicable, the United States Patent and Trademark Office). None of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

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(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that (I) the Licensor is not the sole owner of the entire right, title and interest in any of the Patents scheduled beneath such Licensor’s name on Schedule 7.01(m)(i), free and clear of any encumbrances in the applicable Field (as defined in the GSK Agreement) (other than (x) any interest of the Company, Issuer or Purchaser Representative, (y) the GSK Agreement (and any encumbrances referred to therein or contemplated thereby) and (z) any encumbrances arising by operation of Law) or (II) there are any facts that would preclude the Licensor from having clear title as the sole owner to any of the Listed Patents on Schedule 7.01(m)(i) in the applicable Field and Territory (other than as described in clauses (x), (y) and (z) above).

(iv) Validity and Enforceability. Each of the issued Owned Patents and claims therein is valid, enforceable and subsisting. Neither the Company nor the Note Parties, and, to the Knowledge of the Note Parties, no licensor with respect to any Licensed Patent, has received any opinion of counsel that any of the Listed Patents or claims therein is invalid or unenforceable. No issued Listed Patents have lapsed, expired or otherwise been terminated and no Licensed Patent application by the Company or any of the Note Parties or, with respect to any Licensed Patent for which a Patent has not yet issued and to the Knowledge of the Company and the Note Parties, the applicant therefor, have lapsed, expired, been abandoned or otherwise been terminated, other than by operation of law. Except, for the avoidance of doubt, as set forth on Schedule 7.01(m)(iv), none of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that any of the issued Patents on Schedule 7.01(m)(i) or claims therein are unenforceable or invalid.

To the Knowledge of the Note Parties and the Company, there is at least one valid claim in the Listed Patents in each of the United States, the United Kingdom, France, Germany, Italy and Spain that would be Infringed by the Company’s, Note Parties’ or any Subsidiary’s or GSK’s Commercialization of the Licensed Products but for the Company’s the Note Parties’ and the Subsidiaries’ rights in such Patents.

The Company and the Note Parties and, to the Knowledge of the Note Parties, the applicable licensor with respect to any Licensed Patent, has complied with its duty of candor to each applicable Patent Office with respect to the Listed Patents. To the Knowledge of the Note Parties and the Company, each individual associated with the filing and prosecution of the Listed Patents has complied in all material respects with all applicable duties of candor and good faith in dealing with any Patent Office.

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(i) Inventorship. Each of the Owned Patents correctly identifies each and every inventor of the claims thereof as determined in accordance with the Laws of the jurisdiction in which such Patent was issued or is pending. None of the Note Parties nor the Company:

(1) has received any notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any notice from any other Person, or

(3) otherwise has any Knowledge, that there is a Person who is or claims to be an inventor under any of the Listed Patents on Schedule 7.01(m)(i) who is not a named inventor thereof.

(4) To the Knowledge of the Company and the Note Parties, none of the conception, development and reduction to practice of the inventions claimed in the Listed Patents has constituted or involved the misappropriation of Trade Secrets or other “IP Rights” (used in this instance as defined herein but without regard to whether such “IP Rights” relate to the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory) or property of any Third Party.

(ii) No Challenges. None of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, of any claim by any Person asserting that the manufacture, importation, sale, offer for sale or use of any of the Licensed Products infringes any Person’s patents or other intellectual property rights. None of the Note Parties nor the Company has obtained any written non-infringement, freedom to operate, clearance or invalidity opinions from outside counsel regarding the infringement or non-infringement of any Person’s unexpired patent rights by any of the Licensed Products.

(iii) No Infringement. None of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that there is a Person who is engaging in or has engaged in any activity that infringes upon any of the Listed Patents.

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There is no pending or, to the Knowledge of the Company and the Note Parties, threatened, opposition, interference, reexamination, injunction, claim, suit, action, citation, summons, subpoena, hearing, inquiry, investigation (by the International Trade Commission or otherwise), complaint, arbitration, mediation, demand, decree or other dispute, disagreement, proceeding, claim or inter partes review (in each case, other than standard patent prosecution before a Patent Office) (collectively, “Disputes”) challenging the legality, validity, enforceability or ownership of any of the Owned Patents. To the Knowledge of the Company and the Note Parties, there are no Disputes by or with any Third Party against the Company or any Note Party involving the Listed Patents. The Owned Patents set forth on Schedule 7.01(m)(i) are not subject to any outstanding injunction, judgment, order, decree, ruling, change, settlement or other disposition of a Dispute. To the Knowledge of the Company and the Note Parties, no Third Party is Infringing any of the issued Listed Patents. Neither the Company nor any Note Party has put any Third Party on notice of any Infringement of any of the issued Listed Patents.

(iv) Infringement Third Party Intellectual Property. To the Knowledge of the Company and the Note Parties, no Third Party’s Patent would be Infringed, limit or prohibit in any material respect Product Development and Commercialization Activities with respect to any Licensed Product. Neither the Company nor the Note Parties have received any notice of any claim by any Third Party asserting that Product Development and Commercialization Activities with respect to any Licensed Product Infringes such Third Party’s Patents. To the Knowledge of the Company and the Note Parties, there are no pending, published patent applications owned by any Third Party, which the Company or the Note Parties do not have the right to use, which if issued, would limit or prohibit in any material respect Product Development and Commercialization Activities by or on behalf of the Company or the Note Parties or Commercialization by GSK with respect to any Licensed Product. To the Knowledge of the Note Parties and the Company, and except as separately disclosed to Purchaser Representative, there is no pending or threatened (in writing) claims that the Commercialization (as defined in the GSK Agreement) of the Licensed Product as currently contemplated Infringes on any Patents or other Intellectual Property rights of any other Person or constitutes misappropriation of any other Person’s Trade Secrets.

(v) Maintenance, etc. There are no unpaid maintenance fees, annuities or other like payments with respect to the Owned Patents. None of the Note Parties nor the Company has received any written notice from Licensee or any other Person to the effect that, and none of the Note Parties nor the Company otherwise has any Knowledge that, Licensee has not paid, or caused to be paid, all required maintenance fees and like payments with respect to the issued Listed Patents on Schedule 7.01(m)(i). None of the Note Parties nor the Company, has received any written notice from any Licensee or its Affiliates to the effect that Licensee believes, or that any other Person has asserted, that any of the Listed Patents on Schedule 7.01(m)(i) have lapsed, expired or otherwise been terminated. To the Knowledge of the Company and the Note Parties, each individual associated with the filing and prosecution of the Listed Patents has complied in all material respects with all applicable duties of candor and good faith in dealing with any Patent Office, including any duty to disclose to any Patent Office all information known by such individual to be material to patentability of each such Patent, in those jurisdictions where such duties exist. Neither the Company nor any Note Party has filed any disclaimer, other than a terminal disclaimer, or made or permitted any other voluntary reduction in the scope of any of its Owned Patents post issuance.

(vi) Trademarks. Neither the Company nor any Note Party has any owned or exclusively in-licensed Trademarks that are necessary or useful in the development, manufacture or commercialization of Tebipenem Pivoxil Hydrobromide or any Licensed Product in the Field (as defined in the GSK Agreement) in the Territory.

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(n) Lending. None of the Note Parties are engaged in the business of extending credit for the purpose of purchasing or carrying margin stock (within the meaning of Regulation U issued by the FRB), or carrying margin stock, and no portion of the Notes shall be used by the Note Parties for a purpose that violates Regulation T, U or X promulgated by the Board of Governors of the Federal Reserve System from time to time.

(o) Margin Stock. Issuer is not engaged and will not engage, principally or as one of its important activities, in the business of purchasing or carrying margin stock (within the meaning of Regulation U issued by the FRB), or extending credit for the purpose of purchasing or carrying margin stock. Following the application of the proceeds of the Notes, not more than [***]% of the value of the assets, subject to the provisions of Section 8.01 or Section 8.05 or subject to any restriction contained in any agreement or instrument between Issuer and Purchaser Representative or any Affiliate of Purchaser Representative relating to Indebtedness and within the scope of Section 9.05(e) will be margin stock.

(p) Private Placement. Neither Issuer nor anyone acting on its behalf has offered the Notes or any similar securities for sale to, or solicited any offer to buy the Notes or any similar securities from, or otherwise approached or negotiated in respect thereof with, any Person other than Purchaser Representative, which has been offered the Notes at a private sale for investment. Neither Issuer nor anyone acting on its behalf has, with respect to the Notes, engaged in any form of “general solicitation or general advertising,” as defined under Rule 502(c) of the Securities Act. Issuer has provided Purchaser Representative an opportunity to discuss with Issuer’s and the Company’s management Issuer’s and the Company’s business, management, financial affairs and the terms and conditions of the offering of the Notes. Neither Issuer nor anyone acting on its behalf has taken, or will take, any action that would subject the issuance or sale of the Notes to the registration requirements of section 5 of the Securities Act or to the registration requirements of any securities or blue sky Laws of any applicable jurisdiction, including the jurisdiction that governs Issuer’s or the Company’s internal affairs.

(q) GSK Agreement.

(i) After giving effect to the Contribution, the representations and warranties set forth in Section 7.02(o) are true and correct with respect to Issuer and the Note Parties, the GSK Agreement, the Transferred Assets and the GSK Proceeds, mutatis mutandis, as if references therein to the Company were references to Issuer or the applicable Note Party, references to Material Contracts included the GSK Agreement and Meiji License Agreement to the extent applicable, and references to the GSK Proceeds applied to the rights and assets contributed or otherwise transferred to Issuer pursuant to the Contribution.

(r) Material Contracts.

(i) As of the Closing Date, Issuer is not a party to any Material Contract (other than the Transaction Documents and, after giving effect to the Contribution thereof under the Contribution Agreement, the GSK Agreement and the Meiji License Agreement). The Note Parties have provided to Purchaser Representative true, correct and complete copies of (A) all Royalty Reports, (B) all notices and, to the Knowledge of each Note Party, correspondence, delivered to the Company or any Note Party by GSK or by the Company or any Note Party to GSK pursuant to, or relating to, the GSK Agreement, and (C) all notices and, to the Knowledge of each Note Party, correspondence delivered to the Company or any Note Party by Meiji or by the Company or any Note Party to Meiji pursuant to, or relating to, the Meiji License Agreement, in each case of clauses (B) and (C) that could reasonably be expected to have an adverse effect, in any material

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respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds.

(ii) Neither the Company nor any Note Party nor, to the Knowledge of any Note Party, any Material Contract Counterparty, is in breach or default of any Material Contract and no circumstances or grounds exist that would, upon the giving of notice, the passage of time or both, give rise (A) to a claim by the Company, any Note Party or any Material Contract Counterparty of a breach of any Material Contract, or (B) to a right of rescission, termination (excluding the mere existence of GSK’s right to terminate the GSK Agreement pursuant to Section 11.2 of the GSK Agreement), revision, or Set-Off, by any Person, in, to or under any Material Contract. Neither the Company nor any Note Party has received from, or delivered to, any Material Contract Counterparty, any notice alleging a breach or default under any Material Contract, which breach or default has not been cured as of the date hereof. Neither the Company nor any Note Party has (1) given notice to a Material Contract Counterparty of the termination of any Material Contract (whether in whole or in part) or any notice to a Material Contract Counterparty expressing any intention to terminate any Material Contract, and neither the Company nor any Note Party has received from any Material Contract Counterparty any notice of termination of any Material Contract, whether in whole or in part, or any notice expressing any intention to terminate any Material Contract. To the Knowledge of the Note Parties, there are no facts, circumstances or events that would reasonably be expected to result in the termination of the Material Contract in accordance with its terms.

(iii) Each Material Contract is a valid and binding obligation of the Company or the applicable Note Party that is party thereto and, to the Knowledge of the Note Parties, of the applicable Material Contract Counterparty, enforceable against each of the Company or such Note Party, as applicable, and, to the Knowledge of the Note Parties, each applicable Material Contract Counterparty in accordance with its terms, except as may be limited by general principles of equity (regardless of whether considered in a proceeding at law or in equity) and by applicable bankruptcy, insolvency, moratorium and other similar laws of general application relating to or affecting creditors’ rights generally. Neither the Company nor any Note Party has received any notice from any Material Contract Counterparty or any other Person challenging the validity or enforceability of any Material Contract, including, with respect to the GSK Agreement, the obligation of GSK to pay any amounts constituting GSK Proceeds thereunder. Neither the Company nor any Note Party, nor to the Knowledge of the Note Parties any other Person, has delivered or intends to deliver any notice to the Company, any Note Party or any Material Contract Counterparty challenging the validity or enforceability of any Material Contract, including, with respect to the GSK Agreement, the obligation of GSKto pay any amounts constituting GSK Proceeds under the GSK Agreement.

(iv) Neither the Company nor any Note Party has granted any material written waiver or, to the Knowledge of the Note Parties, any other material waiver, under any Material Contract, or released any Material Contract Counterparty, in whole or in part, from any of its material obligations under any Material Contract, except, in each case, to the extent set forth in the applicable Material Contract.

(v) There are no settlements, covenants not to sue, consents, judgments, orders or similar obligations which (A) restrict the rights of the Company, any Note Party or GSK from using any Intellectual Property relating to the research, development, manufacture, production, use or other Commercialization of the Licensed Products (in order to accommodate any Intellectual Property of any Third Party or otherwise), or (B) permit any Third Party (other than GSK pursuant to the GSK Agreement) to use the IP Rights.

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(vi) The security interests granted by Issuer pursuant to the Security Agreement in its rights in the Material Contracts are not prohibited by the terms of such Material Contracts after giving effect to applicable law.

(vii) The Company and each applicable Note Party have made all payments to the respective Material Contract Counterparty due, owing and required under each Material Contract as of the date hereof, other than the Company’s obligation under Section 4.1(a)(ii) of the GSK Agreement to make a payment to GSK for GSK’s [***] related to the development of Tebipenem Pivoxil Hydrobromide. The Company has received from GSK all amounts owed to the Company under the GSK Agreement prior to the date hereof and, as of the Closing Date, no payments are past due and owing by GSK to the Company pursuant to the GSK Agreement related to or involving any Licensed Product. The amount of the “Commercial Milestone Payment” (as defined in the GSK Agreement) for the “First Commercial Sale Milestone” (as defined in the GSK Agreement), after taking into account the reductions with respect thereto set forth in Section 6.3 of the GSK Agreement, is $[***].

(viii) Neither the Company nor any Note Party has consented to any assignment by any Material Contract Counterparty of any of its rights or obligations under any Material Contract, and, to the Knowledge of the Note Parties, no Material Contract Counterparty has assigned any Material Contract or any of its rights or obligations thereunder to any Person. Except as contemplated by the Transaction Documents or the Royalty Purchase Agreement, neither the Company nor any Note Party has assigned, in whole or in part, or granted any Lien upon or security interest with respect to, any Material Contract, the Transferred Assets, the Collateral or the GSK Proceeds.

(ix) Neither the Company nor any Note Party has notified any Person of any claims for indemnification under any Material Contract, nor has the Company or any Note Party received any claims for indemnification under any Material Contract. Except as set forth on Schedule 7.01(r)(ix), neither the Company nor any Note Party has exercised any review or audit rights pursuant to any Material Contract, including the GSK Agreement.

(x) To the Knowledge of the Note Parties, GSK has not granted, and the Company has not received any notice that GSK has granted, a sublicense to any Person.

(xi) Except as provided in the GSK Agreement (including Section 6.5(c) of the GSK Agreement as set forth below) or the applicable Material Contract, neither the Company nor any Note Party is a party to any agreement providing for or permitting any sharing of or providing for or permitting any Royalty Reduction, or permitting any Set-Off against the GSK Proceeds. GSK has not exercised, and, to the Knowledge of the Company, GSK has not had the right to exercise, and no event or condition exists that, upon notice or passage of time, or both, would permit GSK to exercise, any GSK Royalty Reduction, Royalty Reduction or Set-Off against the GSK Proceeds or any other amounts payable by GSK under the GSK Agreement. To the Knowledge of the Note Parties, there are no Third Party Patents that would provide a basis for a GSK Royalty Reduction or Royalty Reduction. The [***] percent ([***]%) reduction to royalty rates in Section 6.5(c) of the GSK Agreement applies with respect to a given “Product” (as defined in the GSK Agreement) in a given country in the Territory only if both of the following conditions are true at the applicable point during the applicable “Royalty Term” (as defined in the GSK Agreement): (i) such Product is not covered by a “Valid Claim” (as defined in the GSK Agreement) of any “Spero Patent” (as defined in the GSK Agreement) in such country; and (ii) the “Regulatory Exclusivity Period” (as defined in the GSK Agreement), if any, for such Product in such country has expired. There are no

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compulsory licenses granted or, to the Knowledge of the Note Parties, threatened to be granted, with respect to the IP Rights.

(xii) To the Knowledge of the Note Parties, no step has been taken or is intended by any Material Contract Counterparty, or any other Person to make any Material Contract Counterparty subject to any bankruptcy, insolvency, liquidation, dissolution or reorganization proceeding.

(xiii) Other than the Material Contracts, there are no Contracts between the Company, Issuer or any of their respective Affiliates, on the one hand, and any Material Contract Counterparty, on the other hand, that (A) relate to the Commercialization of any Licensed Product or (B) could reasonably be expected to have a Material Adverse Effect. Neither the Company nor any Note Party has (1) received any written notice of any dispute from any Material Contract Counterparty for resolution pursuant to any Material Contract or (2) given any written notice of any dispute to a Material Contract Counterparty for resolution pursuant to any Material Contract, in each case of clauses (1) and (2) that could reasonably be expected to adversely affect in any material respect the value of the GSK Proceeds.

(s) Capital Stock. No Capital Stock has been issued by Issuer other than the Capital Stock issued to Holdings that is subject to the pledge to Purchaser Representative under the Security Agreement.

(t) Office of Each Note Party. The chief place of business, the chief executive office and each office where Issuer keeps its records regarding the GSK Proceeds are, as of the date hereof, each located at 675 Massachusetts Avenue, 14th Floor, Cambridge, Massachusetts 02139.

(u) UCC Representations. No Note Party (or any predecessor by merger or otherwise) has, within the five-year period preceding the date hereof, had a name that differs from its name as of the date hereof.

(v) Data Privacy. To the extent that any Note Party has access to any Personal Information (as defined under Applicable Law), the Note Parties are in material compliance with all applicable Privacy Laws and maintains information security processes that (a) include safeguards for the security, privacy, confidentiality and integrity of transactions and confidential or proprietary data, (b) are designed to protect against unauthorized access to the systems and data of the Note Parties and (c) have been in compliance with all applicable Privacy Laws in all material respects. No Note Party has received written notice of any claim that it has suffered a breach of Personal Information as defined under Applicable Law, except to the extent any such breach could not be reasonably likely, either individually or in the aggregate, to have a Material Adverse Effect.

(w) ERISA Compliance. Except as could not reasonably be expected to have a Material Adverse Effect: (i) each employee benefit plan (as defined in Section 3(3) of ERISA), if any, maintained or contributed to by any Note Party is in compliance with the applicable provisions of ERISA, the Code and other Applicable Laws; (ii) there are no pending or, to the Knowledge of the Note Parties, threatened claims, actions or lawsuits, or action by any Governmental Entity, with respect to any such plan that could reasonably be expected to have a Material Adverse Effect; and (iii) no prohibited transaction or violation of the fiduciary responsibility rules with respect to any such plan has occurred that has had or could reasonably be expected to have a Material Adverse Effect.

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(x) Sanctions; Anti-Corruption Laws.

(i) No Note Party nor any director, officer, employee nor, to the Knowledge of any Note Party, any agent, Affiliate or Representative thereof, is an individual or entity that is, or is owned or controlled by one or more individuals or entities that are (A) currently the subject or target of any Sanctions, (B) included on OFAC’s List of Specially Designated Nationals, HMT’s Consolidated List of Financial Sanctions Targets, or any similar list enforced by any other relevant Sanctions authority or (C) located, organized or resident in a Designated Jurisdiction. Each Note Party has conducted its business in compliance with all applicable Sanctions and has instituted and maintained policies and procedures designed to promote and achieve compliance with such Sanctions.

(ii) Each Note Party and its directors, officers, employees and, to the Knowledge of Issuer, agents, Affiliates and Representatives have conducted their business in compliance with Anti-Corruption Laws and have instituted and maintained policies and procedures reasonably designed to promote and achieve compliance with such Laws. No Note Party nor any director, officer, employee nor, to the Knowledge of such Note Party, any agent, Affiliate or Representative thereof has, directly or indirectly, made, offered, promised or authorized any payment or provision of anything of value to or for the benefit of any “foreign official” (as such term is defined in the FCPA) for the purpose of influencing any official act or decision or securing any improper advantage.

(iii) To the extent applicable, each Note Party is in compliance with the requirements of the Patriot Act.

(y) Disclosure. No report, financial statement, certificate or other information furnished (whether written or oral) by or on behalf of any Note Party to Purchaser Representative in connection with the transactions contemplated hereby and the negotiation of this Agreement or delivered hereunder or under any other Note Document (in each case, as modified or supplemented by other information so furnished) contains any material misstatement of fact or omits to state any fact necessary to make the statements therein, when taken as a whole and in the light of the circumstances under which they were made, not misleading in any material respect; provided, that, with respect to financial projections, estimates, budgets or other forward-looking information, each Note Party represents only that such information was prepared in good faith based upon assumptions believed by such Note Party to be reasonable at the time such information was delivered to Purchaser Representative.

(z) Sufficiency of Collateral. The Collateral comprises all material rights and assets relating to the Licensed Products, now owned or hereafter acquired, that are owned by Issuer.

(aa) Affected Financial Institution. Issuer is not an Affected Financial Institution.

Section 7.02 Note Parties’ Representations and Warranties as to the Company, Etc. Each Note Party hereby represents and warrants to Purchaser Representative as of the date of this Agreement (except for any representations and warranties which speak as to a specific date, which representations and warranties shall be made as of the date specified), as follows:

(a) [Reserved.]

(b) Existence. The Company is a corporation duly incorporated, validly existing and in good standing under the Laws of the State of Delaware and has all powers and authority, and all

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requisite licenses, permits, franchises, authorizations, consents and approvals of all Governmental Entities required to own or lease its assets and conduct its business as now conducted, except, in each case, as could not reasonably be expected to have (i) a Material Adverse Effect or (ii) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds. The Company is duly qualified to transact business and is in good standing in every jurisdiction in which such qualification or good standing is required by Applicable Law (except where the failure to be so qualified or in good standing would not result in, and could not reasonably be expected to have (a) a Material Adverse Effect, or (b) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds).

(c) No Conflicts. None of the execution and delivery by the Company of any of the Transaction Documents to which the Company is party, the performance by the Company of the obligations contemplated hereby or thereby or the consummation of the transactions contemplated hereby or thereby will: (i) contravene, conflict with, result in a breach, violation, cancellation or termination of, constitute a default (with or without notice or lapse of time, or both) under, require prepayment under, give any Person the right to exercise any remedy (including termination, cancellation or acceleration) or obtain any additional rights under, or accelerate the maturity or performance of or payment under, in any respect, (A) any Applicable Law, (B) any judgment, order, writ, decree, permit or license of any Governmental Entity to which the Company or any of its Subsidiaries or any of their respective assets or properties may be subject or bound, (C) any term or provision of any Contract (other than the GSK Agreement and the Meiji License Agreement) to which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries or any of their respective assets or properties is bound or committed, (D) any term or provision of any of the organizational documents of the Company or any of its Subsidiaries or (E) the GSK Agreement and the Meiji License Agreement, except (x) in the case of clause (A) or (C) above where any such event could not reasonably be expected to have (1) a Material Adverse Effect, or (2) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive payments based on the GSK Proceeds and (y) in the case of clause (B) above where any such event could not reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive payments based on the GSK Proceeds; or (ii) except as provided in or contemplated by any of the Transaction Documents, result in or require the creation or imposition of any Lien on the Transferred Assets, the Patents, the Licensed Product or the GSK Proceeds.

(d) Liens. Except pursuant to, or as contemplated by, the Transaction Documents, the Company has not granted, nor does there exist, any Lien on the Transferred Assets, the Patents or the GSK Proceeds.

(e) Authorization. The Company has all powers and authority to execute and deliver, and perform its obligations under, the Transaction Documents to which it is party and to consummate the transactions contemplated hereby and thereby. The execution and delivery of each of the Transaction Documents to which the Company is party and the performance by the Company of its obligations hereunder and thereunder have been duly authorized by the Company. Each of the Transaction Documents to which the Company is party has been duly executed and delivered by the Company. Each of the Transaction Documents to which the Company is party constitutes the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its respective terms, subject to applicable bankruptcy, insolvency, reorganization,

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moratorium or similar Applicable Laws affecting creditors’ rights generally, general equitable principles and principles of public policy.

(f) Consents. The execution and delivery by the Company of the Transaction Documents to which the Company is party, the performance by the Company of its obligations hereunder and thereunder and the consummation of any of the transactions contemplated hereunder and thereunder (including granting of security interests in the GSK Proceeds to Purchaser Representative) do not require any consent, approval, license, order, authorization or declaration from, notice to, action or registration by or filing with any Governmental Entity or any other Person, except for (i) the filing of any applicable notices under securities laws, (ii) the filings necessary to perfect Liens created by the Note Documents, (iii) those previously obtained and in full force and effect, (iv) consents, filings and registrations in connection with the transactions contemplated by the Contribution Agreements (including the Contribution as contemplated by the Issuer Contribution Agreement) and (v) the Licensee Instruction Letters.

(g) Proceedings. Except as set forth on Schedule 7.02(g), there is no action, suit, arbitration proceeding, claim, citation, summons, subpoena, investigation or other proceeding (whether civil, criminal, administrative, regulatory, investigative or informal, and including by or before a Governmental Entity) pending or, to the Knowledge of the Company, threatened in writing by or against the Company or any of its Subsidiaries, at law or in equity, that (i) if adversely determined, could reasonably be expected to have (A) a Material Adverse Effect, or (B) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds, or (ii) challenges or seeks to prevent or delay the consummation of any of the transactions contemplated by any of the Transaction Documents to which the Company is party.

(h) Solvency. Upon consummation of the transactions contemplated by the Transaction Documents and the application of the proceeds from the Note (a) the present fair saleable value of the Company’s properties and assets will be greater than the sum of its debts, liabilities and other obligations, including contingent liabilities, (b) the present fair saleable value of the properties and assets of the Company and its Subsidiaries, taken as a whole, will not be less than the amount that would be required to pay its probable liabilities on its existing debts, liabilities and other obligations, including contingent liabilities, as they become absolute and matured, (c) the Company will be generally able to realize upon its assets and pay its debts, liabilities and other obligations, including contingent obligations, as they become absolute and matured, (d) the Company will not have unreasonably small capital with which to engage in its business as now conducted, (e) the Company has not incurred, will not incur and does not have any present plans or intentions to incur debts or other obligations or liabilities beyond its ability to pay such debts or other obligations or liabilities as they become absolute and matured, (f) the Company will not have become subject to any Insolvency Event and (g) the Company will not have been rendered insolvent within the meaning of any Applicable Law. No step has been taken by the Company or, to its Knowledge, any other Person to make the Company subject to an Insolvency Event.

(i) [reserved].

(j) Taxes. The Company has timely filed (or caused to be filed) all Tax returns and reports required by Applicable Law to have been filed by it and has paid all Taxes required to be paid by it (including in its capacity as a withholding agent), except any such Taxes that are being contested in good faith by appropriate proceedings, diligently conducted, and for which adequate reserves in accordance with GAAP or where any such failure to file or pay could not reasonably be expected to have, individually or in the aggregate, (a) a Material Adverse Effect, or (b) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds

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or the right of Purchaser Representative to receive the GSK Proceeds. None of the payments received by the Company or Issuer in respect of the GSK Proceeds has been, and under current Law, none of such payments to be received will be, subject to any withholding Tax or Other Tax and, except for claiming benefits as a qualified resident under the income tax treaty between the United States and United Kingdom, neither the Company nor Issuer was ever required or requested to establish any entitlement to treaty benefits in order to avoid or minimize any such withholdings or deductions. GSK Proceeds paid to the Company and Issuer have qualified for benefits under the income tax treaty between the United States and United Kingdom. Since formation, Issuer has been treated as an entity separate from its owner for U.S. federal income tax purposes.

(k) Broker’s Fees. Except as disclosed on Schedule 7.02(k), the Company has not taken any action that would entitle any person or entity to any commission or broker’s fee in connection with the transactions contemplated by this Agreement.

(l) Investigations. None of the Company or any of its Subsidiaries (a) has violated or is in violation of, or, to the Knowledge of the Company, is under investigation by a Governmental Entity with respect to or has been threatened to be charged with or been given notice of any violation of, any Applicable Law or any judgment, order, writ, decree, injunction, stipulation, consent order, permit or license granted, issued or entered by any Governmental Entity or (b) is subject to any judgment, order, writ, decree, injunction, stipulation, consent order, permit or license granted, issued or entered by any Governmental Entity, in each case of (a) and (b), that could reasonably be expected to result in (i) a Material Adverse Effect, or (ii) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the payments based on GSK Proceeds. Each of the Company and any Subsidiary of the Company is in compliance with the requirements of all Applicable Laws, a breach of any of which could reasonably be expected to have a Material Adverse Effect.

(m) Intellectual Property.

(i) Patents. Schedule 7.01(m)(i) sets forth an accurate and complete list as of the Closing Date of all Listed Patents. Other than as set forth on Schedule 7.01(m)(i) there is no Patent owned or licensed by the Company, its Affiliates, the Note Parties or its Affiliates relating to the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory. Schedule 7.01(m)(i) specifies with respect to each Listed Patent (i) the jurisdictions in which such Listed Patent is filed, pending, allowed, granted or issued, (ii) the patent number, registration number, or patent application number, as applicable, (iii) the registered owner thereof (iv) the Licensed Product to which such Listed Patent or Listed Patent application relates, (v) the licensor of each Licensed Patent (if different from registered owner), and (vi) the title of such Patent.

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(ii) No Litigation. None of the Note Parties nor, the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that there are any pending or threatened litigations, interferences, reexaminations, oppositions or like Patent Office proceedings involving any of the Patents on Schedule 7.01(m)(i) or challenging the ownership of the rights of the Company in and to the Owned Patents.

(iii) Ownership of the Patents. Company (or the Note Party indicated on Schedule 7.01(m)(i)) is the sole and exclusive owner of the entire right, title and interest in each of the Owned Patents (other than rights granted to GSK pursuant to the GSK Agreement). The Owned Patents are not subject to any encumbrance, Lien or claim of ownership by any Third Party (other than rights granted to GSK pursuant to the GSK Agreement). Company or the Note Parties have a valid license to each of their respective Licensed Patents, in each case pursuant to the terms of the applicable In-License pursuant to which Company or the applicable Note Party has in-licensed such Licensed Patent(s). Each inventor named on the Owned Patents has executed a contract assigning their entire right, title and interest in and to such Patents and the inventions embodied, described and/or claimed therein, to the owner thereof, and each such contract has been duly recorded at the relevant Patent Office (including, as applicable, the United States Patent and Trademark Office). None of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that (I) the Licensor is not the sole owner of the entire right, title and interest in any of the Patents scheduled beneath such Licensor’s name on Schedule 7.01(m)(i), free and clear of any encumbrances in the applicable Field (as defined in the GSK Agreement) (other than (x) any interest of the Company, Issuer or the Purchaser, (y) the GSK Agreement (and any encumbrances referred to therein or contemplated thereby) and (z) any encumbrances arising by operation of Law) or (II) there are any facts that would preclude the Licensor from having clear title as the sole owner to any of the Listed Patents on Schedule 7.01(m)(i) in the applicable Field and Territory (other than as described in clauses (x), (y) and (z) above).

(iv) Validity and Enforceability. Each of the issued Owned Patents and claims therein is valid, enforceable and subsisting. Neither the Company nor the Note Parties, and, to the Knowledge of the Note Parties, no licensor with respect to any Listed Patent, has received any opinion of counsel that any of the Listed Patents or claims therein is invalid or unenforceable. No issued Listed Patents have lapsed, expired or otherwise been terminated and no Listed Patent application by the Company or any of the Note Parties or,

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with respect to any Licensed Patent for which a Patent has not yet issued and to the Knowledge of the Company and the Note Parties, the applicant therefor, have lapsed, expired, been abandoned or otherwise been terminated, other than by operation of law. Except, for the avoidance of doubt, as set forth on Schedule 7.01(m)(iv), none of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that any of the issued Patents on Schedule 7.01(m)(i) or claims therein are unenforceable or invalid.

To the Knowledge of the Note Parties and the Company, there is at least one valid claim in the Listed Patents in each of the United States, the United Kingdom, France, Germany, Italy and Spain that would be Infringed by the Company’s, Note Parties’ or any Subsidiary’s or GSK’s Commercialization of the Licensed Products but for the Company’s the Note Parties’ and the Subsidiaries’ rights in such Patents.

The Company and the Note Parties and, to the Knowledge of the Note Parties, the applicable licensor with respect to any Licensed Patent, has complied with its duty of candor to each applicable Patent Office with respect to the Listed Patents. To the Knowledge of the Note Parties and the Company, each individual associated with the filing and prosecution of the Listed Patents has complied in all material respects with all applicable duties of candor and good faith in dealing with any Patent Office.

(i) Inventorship. Each of the Owned Patents correctly identifies each and every inventor of the claims thereof as determined in accordance with the Laws of the jurisdiction in which such Patent was issued or is pending. None of the Note Parties nor the Company:

(1) has received any notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any notice from any other Person, or

(3) otherwise has any Knowledge, that there is a Person who is or claims to be an inventor under any of the Listed Patents on Schedule 7.01(m)(i) who is not a named inventor thereof.

To the Knowledge of the Company and the Note Parties, none of the conception, development and reduction to practice of the inventions claimed in the Listed Patents has constituted or involved the misappropriation of Trade Secrets or other “IP Rights” (used in this instance as defined herein but without regard to whether such “IP Rights” relate to the Commercialization (as defined in the GSK Agreement) of the Licensed Products in the Territory) or property of any Third Party.

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(ii) No Challenges. None of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, of any claim by any Person asserting that the manufacture, importation, sale, offer for sale or use of any of the Licensed Products infringes any Person’s patents or other intellectual property rights. None of the Note Parties nor the Company has obtained any written non-infringement, freedom to operate, clearance or invalidity opinions from outside counsel regarding the infringement or non-infringement of any Person’s unexpired patent rights by any of the Licensed Products.

(iii) No Infringement. None of the Note Parties nor the Company:

(1) has received any written notice from any Licensee or its Affiliates to the effect that (A) such Licensee believes or (B) any other Person has asserted,

(2) has received any written notice from any other Person, or

(3) otherwise has any Knowledge, that there is a Person who is engaging in or has engaged in any activity that infringes upon any of the Listed Patents.

There is no pending or, to the Knowledge of the Company and the Note Parties, threatened, opposition, interference, reexamination, injunction, claim, suit, action, citation, summons, subpoena, hearing, inquiry, investigation (by the International Trade Commission or otherwise), complaint, arbitration, mediation, demand, decree or other dispute, disagreement, proceeding, claim or inter partes review (in each case, other than standard patent prosecution before a Patent Office) (collectively, “Disputes”) challenging the legality, validity, enforceability or ownership of any of the Owned Patents. To the Knowledge of the Company and the Note Parties, there are no Disputes by or with any Third Party against the Company or any Note Party involving the Listed Patents. The Owned Patents set forth on Schedule 7.01(m)(i) are not subject to any outstanding injunction, judgment, order, decree, ruling, change, settlement or other disposition of a Dispute. To the Knowledge of the Company and the Note Parties, no Third Party is Infringing any of the issued Listed Patents. Neither the Company nor any Note Party has put any Third Party on notice of any Infringement of any of the issued Listed Patents.

(iv) Infringement Third Party Intellectual Property. To the Knowledge of the Company and the Note Parties, no Third Party’s Patent would be Infringed, limit or prohibit in any material respect Product Development and Commercialization Activities with respect to any Licensed Product. Neither the Company nor the Note Parties have received any notice of any claim by any Third Party asserting that Product Development and Commercialization Activities with respect to any Licensed Product Infringes such Third Party’s Patents. To the Knowledge of the Company and the Note Parties, there are no pending, published patent applications owned by any Third Party, which the Company or the Note Parties do not have the right to use, which if issued, would limit or prohibit in any material respect Product Development and Commercialization

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Activities by or on behalf of the Company or the Note Parties or Commercialization by GSK with respect to any Licensed Product. To the Knowledge of the Note Parties and the Company, and except as separately disclosed to Purchaser Representative, there is no pending or threatened (in writing) claims that the Commercialization (as defined in the GSK Agreement) of the Licensed Product as currently contemplated Infringes on any Patents or other Intellectual Property rights of any other Person or constitutes misappropriation of any other Person’s Trade Secrets.

(v) Maintenance, etc. There are no unpaid maintenance fees, annuities or other like payments with respect to the Owned Patents. None of the Note Parties nor the Company has received any written notice from Licensee or any other Person to the effect that, and none of the Note Parties nor the Company otherwise has any Knowledge that, Licensee has not paid, or caused to be paid, all required maintenance fees and like payments with respect to the issued Listed Patents on Schedule 7.01(m)(i). None of the Note Parties nor the Company, has received any written notice from any Licensee or its Affiliates to the effect that Licensee believes, or that any other Person has asserted, that any of the Listed Patents on Schedule 7.01(m)(i) have lapsed, expired or otherwise been terminated. To the Knowledge of the Company and the Note Parties, each individual associated with the filing and prosecution of the Listed Patents has complied in all material respects with all applicable duties of candor and good faith in dealing with any Patent Office, including any duty to disclose to any Patent Office all information known by such individual to be material to patentability of each such Patent, in those jurisdictions where such duties exist. Neither the Company nor any Note Party has filed any disclaimer, other than a terminal disclaimer, or made or permitted any other voluntary reduction in the scope of any of its Owned Patents post issuance.

(vi) Trademarks. Neither the Company nor any Note Party has any owned or exclusively in-licensed Trademarks that are necessary or useful in the development, manufacture or commercialization of Tebipenem Pivoxil Hydrobromide or any Licensed Product in the Field (as defined in the GSK Agreement) in the Territory.

(n) Lending. The Company and its Subsidiaries (including the Note Parties) are not engaged and will not engage, principally or as one of its important activities, in the business of purchasing or carrying margin stock (within the meaning of Regulation U issued by the FRB), or extending credit for the purpose of purchasing or carrying margin stock, and no portion of the Note shall be used by the Company for a purpose that violates Regulation T, U or X promulgated by the Board of Governors of the Federal Reserve System from time to time. Following the application of the proceeds of the Notes, not more than [***]% of the value of the assets, subject to the provisions of Section 9.02 or Section 9.03 or subject to any restriction contained in any agreement or instrument between Issuer and Purchaser Representative or any Affiliate of Purchaser Representative relating to Indebtedness will be margin stock.

(o) Material Contracts.

(i) As of the Closing Date, the Company has provided to Purchaser Representative true, correct and complete copies of each Material Contract, including true, correct and complete copies of the GSK Agreement and the Meiji License Agreement. The Company has provided to Purchaser Representative true, correct and complete copies of (A) all Royalty Reports, (B) all notices and, to the Knowledge of each Note Party, correspondences delivered to the Company or any Note Party by GSK or by the Company or any Note Party to GSK pursuant to, or relating to, the GSK Agreement, and (C) all notices and, to the Knowledge of each Note Party, correspondences delivered to the Company or any Note Party by Meiji or by the Company or any Note Party to Meiji pursuant to, or relating to, the Meiji License Agreement, in each case of clauses (B) and (C) that could reasonably be expected to have an adverse effect, in any material respect,

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including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds.

(ii) Neither the Company nor any Note Party nor, to the Knowledge of the Company, any Material Contract Counterparty, is in breach or default of any Material Contract and no circumstances or grounds exist that would, upon the giving of notice, the passage of time or both, give rise (A) to a claim by the Company, any Note Party or any Material Contract Counterparty of a breach of any Material Contract, or (B) to a right of rescission, termination (excluding the mere existence of GSK’s right to terminate the GSK Agreement pursuant to Section 11.2 of the GSK Agreement), revision, or Set-Off, by any Person, in, to or under any Material Contract. Neither the Company nor any Note Party has received from, or delivered to, any Material Contract Counterparty, any notice alleging a breach or default under any Material Contract, which breach or default has not been cured as of the date hereof. Neither the Company nor any Note Party has (1) given notice to a Material Contract Counterparty of the termination of any Material Contract (whether in whole or in part) or any notice to a Material Contract Counterparty expressing any intention to terminate any Material Contract, and neither the Company nor any Note Party has received from any Material Contract Counterparty any notice of termination of any Material Contract, whether in whole or in part, or any notice expressing any intention to terminate any Material Contract. To the Knowledge of the Company, there are no facts, circumstances or events that would reasonably be expected to result in the termination of the Material Contract in accordance with its terms.

(iii) Each Material Contract is a valid and binding obligation of the Company or the applicable Note Party that is party thereto and, to the Knowledge of the Company, of the applicable Material Contract Counterparty, enforceable against each of the Company or such Note Party, as applicable, and, to the Knowledge of the Company, each applicable Material Contract Counterparty in accordance with its terms, except as may be limited by general principles of equity (regardless of whether considered in a proceeding at law or in equity) and by applicable bankruptcy, insolvency, moratorium and other similar laws of general application relating to or affecting creditors’ rights generally. Neither the Company nor any Note Party has received any notice from any Material Contract Counterparty or any other Person challenging the validity or enforceability of any Material Contract, including, with respect to the GSK Agreement, the obligation of GSK to pay any amounts constituting GSK Proceeds thereunder. Neither the Company nor any Note Party, nor to the Knowledge of the Company any other Person, has delivered or intends to deliver any notice to the Company, any Note Party or any Material Contract Counterparty challenging the validity or enforceability of any Material Contract, including, with respect to the GSK Agreement, the obligation of GSKto pay any amounts constituting GSK Proceeds under the GSK Agreement.

(iv) Neither the Company nor any Note Party has granted any material written waiver or, to the Knowledge of the Company, any other material waiver, under any Material Contract, or released any Material Contract Counterparty, in whole or in part, from any of its material obligations under any Material Contract, except, in each case, to the extent set forth in the applicable Material Contract.

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(v) There are no settlements, covenants not to sue, consents, judgments, orders or similar obligations which (A) restrict the rights of the Company, any Note Party or GSK from using any Intellectual Property relating to the research, development, manufacture, production, use or other Commercialization of the Licensed Products, (in order to accommodate any Intellectual Property of any Third Party or otherwise), or (B) permit any Third Party (other than GSK pursuant to the GSK Agreement) to use the IP Rights.

(vi) The security interests granted by Issuer pursuant to the Security Agreement in its rights in the Material Contracts are not prohibited by the terms of such Material Contracts after giving effect to applicable law.

(vii) The Company and each applicable Note Party have made all payments to the respective Material Contract Counterparty due, owing and required under each Material Contract as of the date hereof, other than the Company’s obligation under Section 4.1(a)(ii) of the GSK Agreement to make a payment to GSK for GSK’s [***] related to the development of Tebipenem Pivoxil Hydrobromide. The Company has received from GSK all amounts owed to the Company under the GSK Agreement prior to the date hereof and, as of the Closing Date, no payments are past due and owing by GSK to the Company pursuant to the GSK Agreement related to or involving any Licensed Product. The amount of the “Commercial Milestone Payment” (as defined in the GSK Agreement) for the “First Commercial Sale Milestone” (as defined in the GSK Agreement), after taking into account the reductions with respect thereto set forth in Section 6.3 of the GSK Agreement, is $[***].

(viii) Neither the Company nor any Note Party has consented to any assignment by any Material Contract Counterparty of any of its rights or obligations under any Material Contract, and, to the Knowledge of the Company, no Material Contract Counterparty has assigned any Material Contract or any of its rights or obligations thereunder to any Person. Except as contemplated by the Transaction Documents or the Royalty Purchase Agreement, neither the Company nor any Note Party has assigned, in whole or in part, or granted any Lien upon or security interest with respect to, any Material Contract, the Transferred Assets, the Collateral or the GSK Proceeds.

(ix) Neither the Company nor any Note Party has notified any Person of any claims for indemnification under any Material Contract, nor has the Company or any Note Party received any claims for indemnification under any Material Contract. Except as set forth on Schedule 7.02(o)(ix), neither the Company nor any Note Party has exercised any review or audit rights pursuant to any Material Contract, including the GSK Agreement.

(x) To the Knowledge of the Company, GSK has not granted, and the Company has not received any notice that GSK has granted, a sublicense to any Person.

(xi) Except as provided in the GSK Agreement (including Section 6.5(c) of the GSK Agreement as set forth below) or the applicable Material Contract, neither the Company nor any Note Party is a party to any agreement providing for or permitting any sharing of or providing for or permitting any right of counterclaim, credit, reduction or deduction by contract or otherwise (a “Royalty Reduction”),, or permitting any Set-Off against the GSK Proceeds. GSK has not exercised, and, to the Knowledge of the Company, GSK has not had the right to exercise, and no event or condition exists that, upon notice or passage of time, or both, would permit GSK to exercise, any GSK Royalty Reduction, Royalty Reduction or Set-Off against the GSK Proceeds or any other amounts payable by GSK under the GSK Agreement. To the Knowledge of the Company, there are no Third Party Patents that would provide a basis for a GSK Royalty Reduction or Royalty

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Reduction. The [***] percent ([***]%) reduction to royalty rates in Section 6.5(c) of the GSK Agreement applies with respect to a given “Product” (as defined in the GSK Agreement) in a given country in the Territory only if both of the following conditions are true at the applicable point during the applicable “Royalty Term” (as defined in the GSK Agreement): (i) such Product is not covered by a “Valid Claim” (as defined in the GSK Agreement) of any “Spero Patent” (as defined in the GSK Agreement) in such country; and (ii) the “Regulatory Exclusivity Period” (as defined in the GSK Agreement), if any, for such Product in such country has expired. There are no compulsory licenses granted or, to the Knowledge of the Company, threatened to be granted, with respect to the IP Rights.

(xii) To the Knowledge of the Company, no step has been taken or is intended by any Material Contract Counterparty, or any other Person to make any Material Contract Counterparty subject to any bankruptcy, insolvency, liquidation, dissolution or reorganization proceeding.

(xiii) Other than the Material Contracts, there are no Contracts between the Company, Issuer or any of their respective Affiliates, on the one hand, and any Material Contract Counterparty, on the other hand, that (A) relate to the Commercialization of any Licensed Product or (B) could reasonably be expected to have a Material Adverse Effect. Neither the Company nor any Note Party has (1) received any written notice of any dispute from any Material Contract Counterparty for resolution pursuant to any Material Contract or (2) given any written notice of any dispute to a Material Contract Counterparty for resolution pursuant to any Material Contract, in each case of clauses (1) and (2) that could reasonably be expected to adversely affect in any material respect the value of the GSK Proceeds.

(p) [Reserved].

(q) [Reserved.]

(r) Financial Statements.

The Financial Statements of the Company are complete and accurate in all material respects, were prepared in conformity with GAAP applied on a consistent basis during the periods involved (except as may be indicated in the notes thereto) and present fairly in all material respects, in accordance with applicable requirements of GAAP, the consolidated financial position and the consolidated financial results of the operations of the Company and its Subsidiaries as of the dates and for the periods covered thereby and the consolidated statements of cash flows of the Company and its Subsidiaries for the periods presented therein. Since December 31, 2025, there has been no Material Adverse Effect.

(s) [Reserved].

(t) No Investment Company. None of the Note Parties nor the Company (or any of its Subsidiaries) are an “investment company,” or a company “controlled” by an “investment company”, within the meaning of the Investment Company Act of 1940.

(u) Regulation of Licensed Products. Tebipenem Pivoxil Hydrobromide is a Licensed Product. To the Knowledge of the Company, GSK is in compliance with its material obligations to seek, obtain and maintain Regulatory Authorizations for the Licensed Product in the Territory, and neither the FDA nor any other Regulatory Agency has stated that it is not likely to approve or is likely to withdraw approval of the Licensed Product.

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(v) Insurance. The Company has the products-completed operations liability, property and casualty, commercial general liability, and umbrella liability insurance policies with the coverages and limits set forth on Schedule 7.02(v) carried with the Insurance Providers also set forth therein, and the Note Parties are covered under such policies in accordance with the requirements under the GSK Agreement, any New Arrangement (if applicable) and the Meiji License Agreement.

(w) Beneficial Ownership. The Company does not beneficially own or control more than 10% of the outstanding voting stock or any other equity interest entitled ordinarily to vote in the election of the directors or other governing body (however designated) of any Person that is not a wholly owned Subsidiary.

(x) [Reserved.]

(y) Disclosure. The Company has disclosed to Purchaser Representative all agreements, instruments and corporate or other restrictions to which it or any of its Subsidiaries is subject, and all other matters known to it, that, either individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect or an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds. No report, financial statement, certificate or other information furnished (whether written or oral) by or on behalf of the Company or any the Subsidiaries to Purchaser Representative in connection with the transactions contemplated hereby and the negotiation of this Agreement or delivered hereunder or under any other Note Document (in each case, as modified or supplemented by other information so furnished) contains any material misstatement of fact or omits to state any fact necessary to make the statements therein, when taken as a whole and in the light of the circumstances under which they were made, not misleading in any material respect; provided, that, with respect to financial projections, estimates, budgets or other forward-looking information, each Note Party represents only that such information was prepared in good faith based upon assumptions believed by the Note Parties and the Company to be reasonable at the time such information was delivered.

Article VIII

AFFIRMATIVE COVENANTS

The Note Parties covenant and agree with Purchaser Representative that, until Payment in Full:

Section 8.01 Maintenance of Existence. Each Note Party shall at all times (a) preserve, renew and maintain in full force and effect its legal existence and good standing as a limited liability company under the Laws of the jurisdiction of its organization; (b) not change its name or its chief executive office as set forth herein without having given Purchaser Representative the notice thereof required under Section 8.17; and (c) use commercially reasonable and diligent efforts to maintain all rights, privileges, permits, licenses and franchises necessary or desirable in the normal conduct of its business, except to the extent that failure to do so could not reasonably be expected to have a Material Adverse Effect.

Section 8.02 Use of Proceeds. Each Note Party shall use the net proceeds of the Notes received by it to acquire assets from the Company pursuant to the Issuer Contribution Agreement, to fund operating expenses of the Note Parties and for such other purposes as are permitted under the SPV Organizational Documents and this Agreement.

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Section 8.03 Financial Statements and Information.

(a) On or before the [***] after the close of each quarter of each fiscal year (the “Quarterly Reporting Date”), Issuer shall furnish to Purchaser Representative a duly completed certificate of a Senior Officer of Issuer, which certificate shall include (i) a statement that such officer has no Knowledge, except as specifically stated, of any condition, event or act which constitutes a Default, Event of Default or Prepayment Trigger.

(b) Promptly (and in any event no later than [***]) following receipt by the Company, Holdings or Issuer from GSK of a GSK Payment Notice or a Royalty Report, Issuer shall notify Purchaser Representative in writing and provide to Purchaser Representative a complete copy of such GSK Payment Notice or Royalty Report, as applicable. In addition, Issuer shall, promptly upon receipt thereof, forward or cause to be forwarded to Purchaser copies of all other Notices, reports, updates and other data or written information (i) pertaining to the GSK Proceeds and other Transferred Assets (ii) relating to the Commercialization of the Licensed Product in the Territory, (iii) received from Meiji pursuant to, or relating to, the Meiji License Agreement to the extent relating to the Licensed Product, Intellectual Property, the GSK Proceeds or other Transferred Assets, (iv) received from the Licensee or any Third Party which relate to events or circumstances that could reasonably be expected to have a Material Adverse Effect, or (v) received from any Person that relate to the Intellectual Property and that could reasonably be expected to have a Material Adverse Effect, or that Purchaser Representative reasonably requests.

(c) On each Quarterly Reporting Date, Issuer shall deliver or cause to be delivered to Purchaser Representative (i) a listing of all Material Contracts entered into, amended or terminated during such quarter, (ii) a true copy of all Material Other Reports received during such quarter and (iii) to the extent not previously provided to Purchaser Representative pursuant to Section 8.03(b), any Royalty Report.

(d) Neither Company nor any Note Party shall, without first consulting the Purchaser, cause an inspection or audit of GSK’s books and records to be conducted pursuant to and in accordance with Section 6.8(b) of the GSK License Agreement except in connection with inspections or audits requested by the Purchaser under this Agreement. From time to time, but not more frequently than [***], the Purchaser may request the Company and the Note Parties to, and the Company and the Note Parties shall, cause an inspection or audit of GSK’s books and records in respect of the GSK Proceeds and proceeds thereof to be conducted pursuant to and in accordance with Section 6.8(b) of the GSK Agreement. If, following any such inspection or audit, GSK disagrees with the independent certified public accounting firm’s calculations, the Company and the Note Parties shall, at the direction of the Purchaser, work with GSK to resolve such disagreement; provided, that the Company and the Note Parties shall not resolve any such disagreement without the prior written consent of the Purchaser. If GSK and the Company, at the direction of the Purchaser, are unable to reach a mutually acceptable resolution, then at the direction of the Purchaser, the Company shall submit the dispute to the second accounting firm in accordance with Section 6.8(b) of the GSK Agreement. For the purposes of exercising the Purchaser’s rights pursuant to this Section 8.03(d) in respect of the GSK Agreement, the Company shall appoint such accounting firm of nationally recognized standing as the Purchaser shall select for such purpose (it being understood and agreed that any such accounting firm shall, pursuant to Section 6.8(b) of the GSK Agreement be reasonably acceptable to GSK). The Company, the Note Parties and the Purchaser agree that [***] percent ([***]%) of the expenses of, and amounts payable to GSK as a result of any inspection or audit carried out at the request of the Purchaser pursuant to this Section 8.03(d) that would otherwise be borne by the Company pursuant to the GSK Agreement shall instead be borne and paid directly by the Purchaser; provided, that, if the Company pays such costs

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and expenses directly, such costs expenses shall be reimbursed to the Company by the Purchaser promptly on demand, including such reasonable fees and expenses of such accounting firm as are to be borne by the Company pursuant to Section 6.8(b) of the GSK Agreement together with [***] percent ([***]%) of the Company’s out-of-pocket costs and expenses incurred in connection with such inspection or audit; provided, that for the avoidance of doubt, any audit caused by the Company without complying with the consultation requirements in the first two sentences of this Section 8.03(d) shall not be deemed to be carried out at the request of Purchaser Representative and the Purchaser shall have no obligation to reimburse the Company, pursuant to this sentence, for any fees, costs or expenses incurred by the Company in connection therewith. The Company shall, to the extent not prohibited by obligations of confidentiality contained in the GSK Agreement pursuant to which an inspection or audit in respect of the GSK Proceeds is conducted, promptly (but in no event later than [***]) furnish to the Purchaser any inspection or audit report prepared in connection with such inspection or audit. In the event that any inspection or audit conducted pursuant to this Section uncovers that the amounts actually paid to the Purchaser for any period in respect of the GSK Proceeds and proceeds thereof were greater than the amounts that should have been paid to the Purchaser for such period in respect of the GSK Proceeds and proceeds thereof, the Purchaser shall cause the amount of such overpayment to be paid to GSK promptly (but in no event later than [***]) after delivery to the Purchaser, pursuant to this Section, of the applicable inspection or audit report or certificate, as the case may be, showing such overpayment. In the event that any inspection or audit conducted pursuant to this Section uncovers that the amounts actually paid to the Purchaser for any period in respect of the GSK Proceeds and proceeds thereof were less than the amounts that should have been paid to the Purchaser for such period in respect of the GSK Proceeds and proceeds thereof, the Company shall cooperate and provide assistance as reasonably requested by the Purchaser to cause the amount of such underpayment to be paid to the Purchaser by GSK in accordance with the timeframe set forth in the GSK Agreement promptly after delivery to the Purchaser, pursuant to this Section, of the applicable inspection or audit report or certificate, as the case may be, showing such underpayment.

(e) In the event that any inspection or audit conducted pursuant to Section 8.03(d) uncovers that the amounts actually paid to Purchaser Representative for any period in respect of the Purchased Proceeds and proceeds thereof were greater than the amounts that should have been paid to Purchaser Representative for such period in respect of the Purchased Proceeds and proceeds thereof, Purchaser Representative shall cause the amount of such overpayment to be paid to GSK promptly (but in no event later than [***]) after delivery to Purchaser Representative, pursuant to Section 8.03(d), of the applicable inspection or audit report or certificate, as the case may be, showing such overpayment. In the event that any inspection or audit conducted pursuant to Section 8.03(d) uncovers that the amounts actually paid to Purchaser Representative for any period in respect of the Purchased Proceeds and proceeds thereof were less than the amounts that should have been paid to Purchaser Representative for such period in respect of the Purchased Proceeds and proceeds thereof, the Note Parties shall cooperate and provide assistance as reasonably requested by Purchaser Representative to cause the amount of such underpayment to be paid to Purchaser Representative by GSK in accordance with the timeframe set forth in the GSK Agreement promptly after delivery to Purchaser Representative, pursuant to Section 8.03(d), of the applicable inspection or audit report or certificate, as the case may be, showing such underpayment.

(f) Purchaser Representative and its Representatives shall have the right, at the expense of Issuer, from time to time, not more than [***], during normal business hours and upon at least [***] prior written notice to Issuer (provided, that, after the occurrence and during the continuance of an Event of Default, Purchaser Representative shall have the right, as often, at such times and with such prior notice, as Purchaser Representative determines in its reasonable

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discretion), to visit the offices and properties of the Note Parties and the Company where books and records relating or pertaining to the GSK Proceeds and the Transferred Assets are kept and maintained (or, at Purchaser Representative’s option, to conduct a meeting by telecommunications), to discuss, with officers of the Note Parties and the Company, the business, operations, properties and financial and other condition of GSK and the Company, to discuss the GSK Agreements and the Licensed Products, to discuss the Royalty Reports and Material Other Reports, to verify compliance with the provisions of the Note Documents regarding receipt and application of the GSK Proceeds and, upon physical visits, to inspect and make extracts from and copies of the books and records of Note Parties and relating or pertaining to GSK Proceeds and the Transferred Assets. Issuer shall also participate in a [***] with Purchaser Representative at Purchaser Representative’s reasonable request.

(g) (i) Promptly (and in any event within [***]) of any request, deliver such current bank statements and other information relating to all deposit accounts and securities accounts of Issuer and (ii) at the request of Purchaser Representative, provide Purchaser Representative with read-only online access to all deposit accounts (including, without limitation, the Collection Account) and securities accounts of Issuer.

(h) Promptly, such additional information regarding the business, financial or corporate affairs of Issuer or compliance with the terms of the Note Documents, as Purchaser Representative may from time to time reasonably request.

(i) All written information supplied by or on behalf of the Note Parties to Purchaser Representative pursuant to this Section 8.03 shall be accurate and complete in all material respects as of its date or the date so supplied when taken as a whole and in light of the circumstance under which they are supplied. For the avoidance of doubt, no Note Party makes representations or warranties regarding the accuracy or completeness of any information it receives from a Third Party that it is required to furnish to Purchaser Representative pursuant to this Section 8.03, unless to the Knowledge of such Note Party such information is inaccurate or incomplete in any material respect, in which case the Note Parties shall specify such inaccuracy or incompleteness.

Section 8.04 Books and Records. The Note Parties shall keep proper books, records and accounts in which entries in conformity with sound business practices and all requirements of Law applicable to it shall be made of all dealings and transactions in relation to its business, assets and activities and as shall permit the preparation of the consolidated financial statements of the Note Parties in accordance with GAAP.

Section 8.05 Governmental Authorizations. The Note Parties shall obtain, make and keep in full force and effect all authorizations from and registrations with Governmental Entities that may be required for the validity or enforceability against Issuer of this Agreement and the other Note Documents to which it is a party.

Section 8.06 Compliance with Laws and Contracts.

(a) The Note Parties shall comply with all Applicable Laws, including all Healthcare Laws, and all orders, writs, injunctions and decrees applicable to it or its business or property, and perform its obligations under all Material Contracts, if any, relative to the conduct of its business, except where the failure to comply or perform would not reasonably be expected to have a Material Adverse Effect. Issuer shall use commercially reasonable efforts to take all actions necessary to enforce its rights under each Material Contract, and perform all of its material obligations under

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each Material Contract, except to the extent that failure to do so would not reasonably be expected to result in a Material Adverse Effect.

(b) Issuer shall at all times comply with the margin requirements set forth in Section 7 of the Exchange Act and any regulations issued pursuant thereto, including, without limitation, Regulations T, U and X of the Board of Governors of the Federal Reserve System, 12 C.F.R., Chapter II.

Section 8.07 Plan Assets. Issuer shall not take any action that causes its assets to be deemed to be Plan Assets at any time.

Section 8.08 Maintenance of Insurance. The Note Parties shall maintain, or cause the Company to maintain on behalf of the Note Parties, with financially sound and reputable insurance companies, (i) insurance policies required to be maintained under any Material Contract and (ii) insurance with respect to its properties and business against loss or damage of the kinds customarily carried by companies engaged in similar businesses and owning similar properties, of such types and in such amounts as are customarily carried under similar circumstances by such other companies. The Note Parties shall cause Purchaser Representative and its successors and assigns to be named as lender’s loss payee or mortgagee as its interest may appear, and additional insured with respect to any such insurance providing liability coverage or coverage in respect of any Transferred Assets, and cause each provider of any such insurance to agree, by endorsement upon the policy or policies issued by it or by independent instruments furnished to Purchaser Representative, that it will give Purchaser Representative [***] prior written notice before any such policy or policies shall be adversely altered or canceled.

Section 8.09 Notices.

(a) Issuer shall, promptly after an officer of any Note Party becomes aware thereof, give written Notice to Purchaser Representative of each Default, Event of Default or Prepayment Trigger and each other event that has had or would reasonably be expected to have a Material Adverse Effect; provided, that, in any of the foregoing situations where Issuer knows a press release or other public disclosure is to be made, Issuer shall use all commercially reasonable efforts to provide such information to Purchaser Representative as early as possible but in no event later than simultaneously with such release or other public disclosure.

(b) Issuer shall promptly give written Notice to Purchaser Representative upon receiving notice, or an officer otherwise becomes aware, of any default or event of default under any Material Contracts.

(c) Issuer shall, promptly (and in any event within [***]) after an officer of any Note Party becomes aware thereof, give written Notice to Purchaser Representative of any litigation or proceedings to which Issuer is a party or which would reasonably be expected to have a Material Adverse Effect.

(d) Issuer shall, promptly after an officer of any Note Party becomes aware thereof, give written Notice to Purchaser Representative of any litigation, proceeding, audit or regulatory action relating to the GSK Agreement, the Meiji License Agreement, the Transaction Documents or any of the transactions contemplated therein, or relating to any Licensed Product, the GSK Proceeds or other Transferred Assets.

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(e) Issuer shall, promptly after an officer of any Note Party becomes aware thereof, give written Notice to Purchaser Representative of the occurrence of any Material Adverse Effect.

(f) Issuer shall, promptly after receipt of any written notice from a Licensee pursuant to the GSK Agreement of an event which has had, or could reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect, provide a copy of such notice to Purchaser Representative together with a summary of Issuer’s intended response to Licensee.

(g) Issuer shall, promptly (and in any event within [***]) give written Notice to Purchaser Representative of any material change in accounting policies or financial reporting practices by any Note Party.

(h) Issuer shall, promptly (and in any event within [***]) after an officer of any Note Party becomes aware thereof, give written Notice to Purchaser Representative of any act of infringement of any Intellectual Property included in the Transferred Assets which could reasonably be expected to materially impair Issuer’s ability to generate revenue from such Intellectual Property.

(i) [reserved].

(j) Issuer shall promptly (and in any event within [***]) after an officer of any Note Party becomes aware thereof, give written Notice to Purchaser Representative after the receipt or Knowledge of a notice of resignation of the Independent Manager of Issuer.

(k) Issuer shall promptly (and in any event within [***]) give written Notice to Purchaser Representative after an officer of any Note Party becomes aware of the imposition of any Covered Tax or the assertion by any Governmental Entity that any Covered Tax may be imposed.

Section 8.10 Payment of Taxes. Issuer will timely (i) file required all U.S. federal, state, local and non-U.S. income tax returns and all other material tax returns and reports and (ii) pay all U.S. federal, state, local and non-U.S. income Taxes and all other material Taxes levied or imposed upon it or its properties, income or assets (including in its capacity as a withholding agent) except those which will be contested in good faith by appropriate proceedings diligently conducted and for which adequate reserves will be established in accordance with GAAP or where such Taxes, individually or in the aggregate, are less than $[***] and such failure would not have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds.

Section 8.11 Waiver of Stay, Extension or Usury Laws. Notwithstanding any other provision of this Agreement or the other Note Documents, if at any time the rate of interest payable by any Person under the Note Documents exceeds the Maximum Lawful Rate, then, so long as the Maximum Lawful Rate would be exceeded, such rate of interest shall be equal to the Maximum Lawful Rate. If at any time thereafter the rate of interest so payable is less than the Maximum Lawful Rate, such Person shall continue to pay interest at the Maximum Lawful Rate until such time as the total interest received from such Person is equal to the total interest that would have been received had Applicable Law not limited the interest rate so payable. In no event shall the total interest received by Purchaser Representative under this Agreement and the other Note Documents exceed the amount which Purchaser Representative could lawfully have received, had the interest due been calculated from the Closing Date at the Maximum Lawful Rate. Without limiting the foregoing, no Note Party will at any time, to the extent that it may lawfully not do so, insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension Law or other

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law that would prohibit or forgive Issuer from paying all or any portion of the principal of or premium, if any, or interest on the Notes as contemplated herein, wherever enacted, now or at any time hereafter in force, or that may affect the covenants or the performance of this Agreement; and, to the extent that it may lawfully do so, each Note Party hereby expressly waives all benefit or advantage of any such Law and expressly agrees that it will not hinder, delay or impede the execution of any power herein granted to Purchaser Representative, but will suffer and permit the execution of every such power as though no such Law had been enacted.

Section 8.12 Intellectual Property.

(a) To the extent required or permitted by the GSK Agreement and subject to Section 8.12(b) below, the Note Parties shall, at the Note Parties’ expense, diligently file, prosecute and maintain the IP Rights in the Territory in the event that (i) any Note Party has the sole right to or the first right to file, prosecute or maintain an IP Right in the Territory, or (ii) any Note Party has the back-up or second right under a Material Contract to, following any Material Contract Counterparty’s decision not to exercise its first right to, file, prosecute or maintain any IP Right in the Territory, including payment of maintenance fees or annuities.

(b) To the extent required or permitted by the GSK Agreement, the Note Parties shall, at the Note Parties’ expense, in the event that (x) any Note Party has the sole right to or the first right to enforce or defend any IP Right in the Territory, or (x) any Note Party has the back-up or second right under a Material Contract to, following any Material Contract Counterparty’s decision not to exercise its first right to, enforce or defend any IP Right in the Territory, (A) diligently enforce the applicable IP Rights in the Territory against third party infringement, in any jurisdiction, provided that there shall be no obligation to enforce IP Rights in the Territory unless the failure to enforce would reasonably be expected to have adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds, (B) diligently defend the applicable IP Rights in the Territory against any claims of invalidity or unenforceability, in any jurisdiction, and (C) when available in respect of any applicable Licensed Product in the Territory, obtain Patents and any corrections, substitutions, reissues and reexaminations thereof and obtain Patent term extensions and any other forms of Patent term restoration in any country in the Territory. If Issuer determines that it is not commercially reasonable to act in respect of matters contemplated by the foregoing clauses (B) and (C) with respect to a particular IP Right in a particular country in the Territory, Issuer shall provide advance written notice thereof to Purchaser Representative and shall consult with Purchaser Representative with respect thereto; provided, that Purchaser Representative’s prior written consent, not to be unreasonably withheld, is required to relieve the Note Parties of their obligation to act in accordance with the foregoing sentence with respect to a particular IP Right in a particular country in the Territory. Issuer shall promptly (but in any event within [***]) provide to the Purchaser Representative a copy of any written notice or other documentation received in connection with any legal action, suit or other proceeding relating to the IP Rights, regardless of whether such legal action, suit or other proceeding occurs inside or outside of the Territory.

(c) Issuer shall, except to the extent prohibited by obligations of confidentiality contained in the GSK Agreement, promptly (but in any event within [***]) after receipt thereof, provide to Purchaser Representative a copy of all substantive written notices or other documentation relating to the patentability, enforceability, validity, scope or term of the Patents included in the IP Rights, and shall provide Purchaser Representative with a copy of drafts of any written material proposed to be filed in response thereto.

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(d) To the extent required or permitted by the GSK Agreement, the Note Parties shall not disclaim or abandon, or fail to use commercially reasonable efforts necessary or desirable to prevent the disclaimer or abandonment of, any IP Rights in the Territory (and Issuer shall provide written notice to Purchaser Representative if it disclaims or abandons or fails to use commercially reasonable efforts necessary or desirable to prevent the disclaimer or abandonment of any IP Rights outside of the Territory).

(e) To the extent permitted or required under the GSK Agreement, the Note Parties shall diligently defend against any claim or action by any other Person that the Commercialization (as defined in the GSK Agreement) of Licensed Products as currently contemplated in the GSK Agreement, Infringes on any Patents or other Intellectual Property rights of any other Person or constitutes misappropriation of any other Person’s Trade Secrets or other Intellectual Property rights.

(f) The Note Parties shall not exercise and enforce their applicable rights, or fail to exercise or enforce their rights, in respect of any Material Contract, including the GSK Agreement, in any manner that would result in a breach of this Agreement.

Section 8.13 [Reserved.]

Section 8.14 [Reserved.].

Section 8.15 [Reserved.].

Section 8.16 Security Documents; Further Assurances.

(a) Subject to Section 8.16(b), Issuer shall promptly, upon the reasonable request of Purchaser Representative, at Issuer’s expense, (a) execute, acknowledge and deliver, or cause the execution, acknowledgment and delivery of, and thereafter register, file or record, or cause to be registered, filed or recorded, in an appropriate governmental office, any document or instrument supplemental to or confirmatory of the Note Documents or otherwise deemed by Purchaser Representative reasonably necessary or desirable for the continued validity, perfection and priority of the Liens on the Collateral covered thereby subject to no other Liens except as permitted by the applicable Note Document, or obtain any consents or waivers as may be necessary or appropriate in connection therewith; (b) deliver or cause to be delivered to Purchaser Representative from time to time such other documentation, consents, authorizations, approvals and orders in form and substance reasonably satisfactory to Purchaser Representative and Purchaser Representative shall reasonably deem necessary to perfect or maintain the Liens on the Collateral pursuant to the Note Documents; and (c) upon the exercise by Purchaser Representative of any power, right, privilege or remedy pursuant to any Note Document which requires any consent, approval, registration, qualification or authorization of any Governmental Entity execute and deliver all applications, certifications, instruments and other documents and papers that Purchaser Representative may require. In addition, subject to Section 8.16(b), Issuer shall promptly, at its sole cost and expense, execute and deliver to Purchaser Representative such further instruments and documents, and take such further action, as Purchaser Representative may, at any time and from time to time, reasonably request in order to carry out the intent and purpose of this Agreement and the other Note Documents to which it is a party and to establish and protect the rights, interests and remedies created, or intended to be created, in favor of Purchaser Representative hereby and thereby.

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(b) Notwithstanding anything to the contrary herein or in any other Note Document, Issuer shall not have any obligation to (i) perfect or record any security interest or Lien in any intellectual property included in the Collateral in any jurisdiction other than in the U.S. (or to enter into any foreign Law governed charges, debentures, pledges or other security agreements in respect thereof), (ii) obtain any landlord waivers, estoppels or collateral access letters, or (iii) obtain any consent of the Licensee to the assignment and pledge to Purchaser Representative of the rights under the GSK Agreement that are included in the Transferred Assets.

Section 8.17 Information Regarding Collateral. No Note Party shall effect any change (i) in its legal name, (ii) in the location of its chief executive office, (iii) in its identity or organizational structure, (iv) in its federal Taxpayer Identification Number or organizational identification number, if any, or (v) in its jurisdiction of organization (in each case, including by merging with or into any other entity, reorganizing, dissolving, liquidating, reorganizing or organizing in any other jurisdiction), until (A) it shall have given Purchaser Representative not less than [***] prior written notice (in the form of a certificate of a duly authorized Senior Officer of such Note Party), or such lesser notice period agreed to by Purchaser Representative, of its intention so to do, clearly describing such change and providing such other information in connection therewith as Purchaser Representative may reasonably request and (B) it shall have taken all action reasonably satisfactory to Purchaser Representative to maintain the perfection and priority of the security interest of Purchaser Representative in the Collateral, if applicable. Issuer agrees to provide promptly Purchaser Representative with certified SPV’s Organizational Documents reflecting any of the changes described in the preceding sentence. Issuer also agrees to notify promptly Purchaser Representative of any change in the location of any office in which it maintains books or records relating to Collateral owned by it or any office or facility at which any portion of Collateral is located (including the establishment of any such new office or facility).

Section 8.18 Additional Collateral; New License Arrangement.

(a) With respect to any Transferred Assets acquired after the Closing Date by any Note Party that is not already subject to the Lien created by any of the Note Documents or specifically excluded from the requirement to be subject to such Lien in the Note Documents, such Note Party shall promptly (and in any event within [***] after the acquisition thereof) (i) execute and deliver to Purchaser Representative such amendments or supplements to the relevant Note Documents or such other documents as Purchaser Representative shall deem necessary or advisable to grant for its benefit, a Lien on such property subject to no Liens other than Permitted Liens, and (ii) take all actions necessary to cause such Lien to be duly perfected in accordance with all applicable requirements of Law, including the filing of financing statements in such jurisdictions as may be reasonably requested by Purchaser Representative. The Note Parties shall otherwise take such actions and execute and/or deliver to Purchaser Representative such documents as Purchaser Representative shall reasonably require to confirm the validity, perfection and priority of the Lien of the Security Agreement on such after-acquired properties.

(b) Without limiting any other rights or remedies Purchaser Representative may have under this Agreement or the Security Agreement, if any Licensee or Issuer terminates the GSK Agreement, or the GSK Agreement otherwise terminates (whether in whole or in part), then, to the extent permitted by the survival provisions of the GSK Agreement and any other applicable provisions of the GSK Agreement, Issuer shall, at Purchaser Representative’s reasonable request and direction and subject to the terms and conditions of the GSK Agreement, cause the Company to (A) prepare any termination and wind-down plan contemplated by Section 11.7(b) of the GSK Agreement, provided, that, Issuer shall cause the Company to provide Purchaser Representative a reasonable opportunity to review and comment on each draft of such plan and any amendments thereto prior to the presentation of such drafts to GSK and to consider Purchaser Representative’s

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comments thereon in good faith, (B) exercise its rights under Section 11.7(b)(iv) of the GSK Agreement, if available, to negotiate any reversion license contemplated by such section, provided, that, (1) Issuer shall cause the Company to provide Purchaser Representative a reasonable opportunity to review and comment on such reversion license prior to execution and to consider Purchaser Representative’s comments thereon in good faith and (2) upon Purchaser Representative’s request, Issuer shall cause the Company to furnish a power of attorney to allow Purchaser Representative to negotiate such reversion license on behalf of the Company, and (C) take any other actions with respect to GSK and the GSK Agreement reasonably requested by Purchaser Representative to enable a New Arrangement. Issuer shall use commercially reasonable efforts, at Purchaser Representative’s reasonable request, in consultation and cooperation with Purchaser Representative, for a period of [***] (or such shorter period as Issuer and Purchaser Representative shall agree) (the “Initial Search Period”), to locate, negotiate and secure a license of the Intellectual Property with respect to the applicable Licensed Product for such Third Party to engage in Commercialization of the applicable Licensed Product for any purpose that GSK would have been permitted to engage in Commercialization of such Licensed Product under the GSK Agreement (any such license, a “New Arrangement”); provided, that, the counterparty to such New Arrangement shall be reasonably acceptable to Issuer; provided further that Purchaser Representative shall have the right to consent in writing to any New Arrangement, which approval shall not be unreasonably withheld or delayed. Such New Arrangement shall (i) become effective not earlier than the effective date of the applicable termination, (ii) expire not later than the last day of the applicable royalty term under the GSK Agreement (and, if such termination is only in part in respect of the applicable Licensed Product in a particular country, the applicable royalty term shall be such term that is applicable under the GSK Agreement for such Licensed Product in such country), (iii) include terms, conditions and limitations not materially more onerous to Issuer or the Company than those contained in the GSK Agreement with respect to the obligations and costs imposed on Issuer or the Company and not materially less favorable with respect to the rights and remedies of Issuer or the Company, including with respect to disclaimers of liability, intellectual property ownership and control and indemnification, and (iv) provide, for no additional consideration from Purchaser Representative (other than, for clarity, the costs and expenses described in this Section 8.18(b)), that (A) Purchaser Representative shall have the same rights as those acquired under the GSK Agreement pursuant to this Agreement and (B) all payments and other consideration (including any upfront fees) thereunder (to the extent that such payments or other consideration would have constituted GSK Proceeds under the GSK Agreement) be made by the other party to such New Arrangement directly to the Collection Account; provided, that, all such payments and other consideration (including any upfront fees) made by the other party to such New Arrangement shall be deemed to be GSK Proceeds hereunder for purposes of determining the GSK Proceeds for the applicable Calendar Quarter(s). Issuer shall, and shall cause the Company to, consult with Purchaser Representative and reasonably consider any comments from Purchaser Representative with respect to the negotiation of any New Arrangement. Issuer agrees to undertake in connection with any New Arrangement such obligations and liabilities, if any, as are comparable to the obligations and liabilities it currently has under the GSK Agreement; provided, that, in no event shall Issuer have any Obligation in connection with the New Arrangement to renegotiate the GSK Agreement. Issuer shall not pay (or enter into any agreement to pay) any upfront costs, fees or expenses to a Third Party in connection with Issuer’s efforts to locate, negotiate and secure a New Arrangement (“New Arrangement Expenses”) without the prior written consent of Purchaser Representative. In no event shall Issuer be required to incur any Obligation of any kind with respect to, and any directions provided by Purchaser Representative under this Section 8.18 shall not include any direction regarding, the Prosecution, maintenance, enforcement or defense of the Intellectual Property. If Purchaser Representative does not consent to such New Arrangement Expenses, Purchaser Representative may, upon written notice to Issuer, terminate the Initial Search Period. If Issuer or the Company is unable to secure a New Arrangement within the Initial Search

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Period, Purchaser Representative may, at Purchaser Representative’s option and sole cost and expense, continue efforts to locate, negotiate and secure a New Arrangement on behalf of Issuer or the Company; provided, that, Issuer shall have the right to consent in writing to any New Arrangement, which approval shall not be unreasonably withheld or delayed. Issuer shall use commercially reasonable efforts, at Purchaser Representative’s request and sole cost and expense (including Purchaser Representative’s payment of Issuer’s reasonable attorney’s fees, if any, in connection therewith) to provide cooperation and assistance to Purchaser Representative in connection with Purchaser Representative’s efforts pursuant to the foregoing sentence. Should Issuer, the Company or Purchaser Representative identify any New Arrangement that satisfies the foregoing requirements, Issuer shall, and shall cause the Company to, use commercially reasonable efforts to promptly duly execute and deliver a new license agreement effecting such New Arrangement. In the event Issuer enters into a New Arrangement, references in this Agreement to the GSK Proceeds and the GSK Agreement shall be deemed to be references to any new royalty or other payments and the new license agreement entered into under the New Arrangement, and references to a Licensee shall be deemed to be references to the other party to such New Arrangement. All amounts payable to Issuer, the Company or any of their Affiliates under any New Arrangement that constitute GSK Proceeds or other amounts intended to replace, succeed to or be substantially equivalent to the GSK Proceeds shall remain subject to this Agreement and the other Note Documents. Following the execution of any New Arrangement, the Parties shall negotiate in good faith and use commercially reasonable efforts to enter into such amendments to this Agreement and the other Note Documents as may be reasonably necessary to reflect the terms of such New Arrangement and to preserve, to the greatest extent practicable, the economic benefit of the GSK Proceeds and Purchaser Representative’s rights hereunder; provided, that, pending the effectiveness of any such amendment, this Agreement shall be interpreted and applied in a manner that gives effect to the Parties’ intent that Purchaser Representative continue to receive the benefit of the GSK Proceeds attributable to such New Arrangement. Subject to Section 4.02(b), all costs and expenses (including attorneys’ fees and expenses) incurred by a Note Party or the Company complying with this Section 8.18(b) (including, without limitation, any New Arrangement Expenses consented to by Purchaser Representative), shall be borne by Purchaser Representative and shall be payable by Purchaser Representative upon demand of Issuer.

Section 8.19 Performance of GSK Agreement. Issuer agrees that it shall (i) perform and comply with in all material respects its obligations under the GSK Agreement, (ii) not breach the GSK Agreement in any respect materially adverse to the interests of Purchaser Representative hereunder and (iii) use commercially reasonable efforts to cure any such breach by Issuer of the GSK Agreement.

Section 8.20 Amendment of GSK Agreement. Issuer shall provide Purchaser Representative a copy of any proposed amendment, supplement, modification or waiver (each, a “Modification”) of any provision of the GSK Agreement as soon as practicable (and in any event not less than [***]) prior to the date Issuer proposes to execute such Modification. Issuer shall not, without the prior written consent of Purchaser Representative, execute or agree to execute any proposed Modification of the GSK Agreement if such Modification would reasonably be expected to (a) adversely affect in any material respect the value of the GSK Proceeds (it being understood and agreed that any proposed Modification to the provisions of the GSK Agreement governing the amount or calculation of the GSK Proceeds or the procedures for payment of the GSK Proceeds shall be deemed, for purposes of this Section 8.20, to have such an effect), or (b) have adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds. Promptly (and in any event within [***]) following receipt by Issuer of a fully executed Modification of the GSK Agreement, Issuer shall furnish a copy of such Modification to Purchaser Representative. For clarity, Modifications to the GSK Agreement relating solely to patents and patent applications that do not relate to the Licensed Products

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in the Territory shall be deemed not to have an adverse effect and shall not require prior written consent of Purchaser Representative.

Section 8.21 Enforcement of GSK Agreement.

(a) Licensee’s Breaches. Promptly (and in any case within [***]) after (i) receiving written notice from GSK, including any notice written terminating the GSK Agreement (in whole or in part), alleging any breach of or default under the GSK Agreement by the Company related to the GSK Proceeds or the proceeds thereof, or any other material breach or default, or asserting the existence of any facts, circumstances or events that, alone or together with other facts, circumstances or events, would reasonably be expected (with or without the giving of notice or passage of time, or both) to give rise to a breach of or default under the GSK Agreement by the Company or a Note Party related to the GSK Proceeds or proceeds thereof or the right to terminate the GSK Agreement (in whole or in part) by GSK; or (ii) Company or a Note Party otherwise has Knowledge of any fact, circumstance or event that, alone or together with other facts, circumstances or events, would reasonably be expected (with or without the giving of notice or passage of time, or both) to give rise to a breach of or default under the GSK Agreement by the Company or a Note Party related to the GSK Proceeds or the proceeds thereof, or any other material breach or default, or the right to terminate the GSK Agreement (in whole or in part) by GSK, in each case the Company and Issuer shall (A) (x) give written notice thereof to Purchaser Representative and provide Purchaser Representative with a written summary of all material details thereof, (y) to the extent not prohibited by obligations of confidentiality contained in the GSK Agreement, include a copy of any written notice received from GSK, and (z) in the case of any such breach or default or alleged breach or default by the Company or a Note Party, describe in reasonable detail any corrective action the Company and the Note Parties propose to take in respect of such breach or default; and (B) in the case of any such breach or default or alleged breach or default by the Company or a Note Party, use commercially reasonable efforts to cure such breach or default and give written notice to Purchaser Representative upon curing such breach or default; provided, however, that if the Company and the Note Parties fail to promptly cure any such breach or default, without limiting any other rights it may have, Purchaser Representative, for the benefit of Purchaser Representative, shall, upon written notice to the Company and the Note Parties and to the extent permitted by the GSK Agreement, be entitled to take any and all actions Purchaser Representative considers reasonably necessary to promptly cure such breach or default, and the Company and Note Parties shall cooperate with Purchaser Representative for such purpose and reimburse Purchaser Representative, promptly (but in no event later than [***]) following demand, for all reasonable and documented out-of-pocket costs and expenses incurred by Purchaser Representative in connection therewith.

(b) Enforcement of GSK Agreement. Issuer and Purchaser Representative shall consult with each other regarding any breach referred to in Section 8.21(a) and as to the timing, manner and conduct of any enforcement of the applicable Licensee’s obligations under the GSK Agreement relating thereto.

(i) Enforcement. Issuer may, and if requested in writing by Purchaser Representative within [***] after receipt of notice of such breach pursuant to Section 8.21(a), shall, proceed in consultation with Purchaser Representative, to use commercially reasonable efforts to enforce compliance by any Licensee with the relevant provisions of the GSK Agreement and to use commercially reasonable efforts to exercise such rights and remedies relating to such breach as shall be available to Issuer, whether under the GSK Agreement or by operation of Applicable Law.

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(ii) Lead Counsel; Costs of Enforcement. In connection with any enforcement of a Licensee’s obligations under the GSK Agreement in respect of any breach referred to in Section 8.21(a) (regardless of whether such enforcement is initiated by Issuer as a result of a written request from Purchaser Representative or initiated by Issuer in the absence of any such request), the lead counsel selected by Issuer shall be such counsel as Purchaser Representative shall recommend for such purpose (as long as such counsel is reasonably acceptable to Issuer). Subject to Section 4.02(b), all costs and expenses of enforcement under this Section 8.21 shall be borne by Purchaser Representative, and any costs and expenses incurred by Issuer or Company complying with this Section 8.21, shall be borne by Purchaser Representative and shall be payable by Purchaser Representative upon demand of Issuer; provided, that, all such amounts paid by Purchaser Representative shall be reimbursable to Purchaser Representative in accordance with Section 4.02.

Section 8.22 Approval of Assignments of License Agreement.

(a) Assignments by the Licensee. Promptly (and in any event within [***]) following receipt by any Note Party or the Company of a written request from a Licensee for consent to assign the GSK Agreement (in whole or in part) pursuant to the GSK Agreement, if applicable, Issuer shall provide notice thereof to Purchaser Representative. Issuer and Purchaser Representative shall consult with each other regarding whether to grant such consent, and Issuer shall not grant or withhold such consent without the prior written consent of Purchaser Representative (such consent of Purchaser Representative not to be unreasonably withheld or delayed). Notwithstanding anything to the contrary contained in this Section 8.22, and for the avoidance of doubt, no consent of Purchaser Representative shall be required in connection with any assignment by a Licensee to which Issuer does not have a consent under the GSK Agreement, including an assignment by such Licensee to a wholly owned Affiliate or in connection with a Change of Control (subject to meeting the requirements of the GSK Agreement).

(b) Assignments by Issuer. Issuer may not assign the GSK Agreement (in whole or in part) without the prior written consent of Purchaser Representative (such consent not to be unreasonably withheld or delayed); provided, that, no such consent shall be required in connection with (i) any assignment, sale or transfer of Issuer’s right, title and interest in and to substantially all of the assets of Issuer related to, or necessary to perform Issuer’s obligations in respect of, the GSK Agreement and (ii) any assignment to an Affiliate, in which case Issuer shall remain responsible for the performance of this Agreement by such Affiliate.

(c) Copies of Assignments. Promptly (and in any event no later than [***]) following Issuer’s, or the Company’s, as applicable, receipt of any fully executed assignment of the GSK Agreement by the applicable Licensee or Issuer, Issuer shall furnish a copy of such assignment to Purchaser Representative.

Section 8.23 [Reserved.]

Section 8.24 Acknowledgment and Agreement by Purchaser Representative; Limitation of Issuer’s and the Company’s Duties and Obligations.

(a) Notwithstanding any provision of this Agreement (including other provisions of this Article VIII) to the contrary, nothing contained in this Agreement shall obligate Issuer or the Company to take any action, or omit to take any action, that (i) would conflict with, violate or cause a violation of, contravene or cause a default under, the GSK Agreement or any Applicable Law or any judgment binding upon, or any guidelines or policies of, Issuer or the Company, (ii) would otherwise, in the judgment of Issuer or the Company (exercised reasonably), adversely affect in

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any material respect Issuer or the Company, including by means of exposing Issuer or the Company to material liability (whether in relation to the transactions contemplated by the GSK Agreement, the GSK Agreement or otherwise), or (iii) would, or would involve any disclosure that would, result in the loss or waiver of any attorney-client privilege available to Issuer or the Company; provided, that, Issuer and the Company shall use their commercially reasonable efforts to implement arrangements that would permit such action, omission or disclosure while preserving such privilege.

Section 8.25 Compliance with Permits. In connection with all Product Development and Commercialization Activities by or on behalf of Issuer or any Subsidiary for each Licensed Product, Issuer or such Subsidiary shall comply, and shall use commercially reasonable efforts to cause each Third Party engaging in such activities on behalf of the Company or any Subsidiary to comply, in all material respects with all Permits.

Article IX

NEGATIVE COVENANTS

Each of the Note Parties covenants and agrees with Purchaser Representative that, until Payment in Full:

Section 9.01 Activities of Note Parties.

(a) Neither Note Party shall (i) enter into any Material Contract (other than those in existence on the Closing Date, in connection with a Permitted Royalty Monetization or New Arrangement) without the consent of Purchaser Representative (such consent not to be unreasonably withheld or delayed) or (ii) amend, modify, waive or terminate (other than expiration in accordance with its terms) any provision of, or permit or agree to the amendment, modification, waiver or termination (other than expiration in accordance with its terms) of any provision of, any of the SPV Organizational Documents or Material Contracts (other than the GSK Agreement, which is governed by Section 8.20 hereof), without the consent of Purchaser Representative (such consent not to be unreasonably withheld or delayed), if the related amendment, modification, waiver or termination could reasonably be expected to have an adverse effect, in any material respect, on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds. No Note Party shall establish or acquire any Subsidiaries.

(b) No Note Party shall:

(i) fail to hold itself out to the public and all other persons as a legal entity separate from the owners of its Capital Stock and from any other Person;

(ii) commingle its assets with assets of any other Person;

(iii) fail to conduct its business only in its own name, nor fail to comply with all organizational formalities necessary to maintain its separate existence;

(iv) fail to maintain separate financial statements, showing its assets and liabilities separate and apart from those of any other Person nor have its assets listed on any financial statement of any other Person; provided, however, that the Note Parties and their assets may be included in a consolidated financial statement of its Affiliates in conformity with applicable

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provisions of GAAP (provided, that, such assets shall also be listed on such Note Party’s own separate balance sheet);

(v) fail to pay its own liabilities and expenses only out of its own funds; provided, that, the foregoing shall not prohibit the payment of any liabilities and expenses by the Company on behalf of the Note Parties so long as such payments are subject to reimbursement or are otherwise recorded as capital contributions;

(vi) enter into any transaction with an Affiliate except transactions permitted by Section 9.06 of this Agreement;

(vii) issue any securities of any kind except as contemplated by this Agreement and the other Transaction Documents;

(viii) fail to correct any known misunderstanding regarding its separate identity and not identify itself as a department or division of any other Person;

(ix) fail to maintain adequate capital in light of its contemplated business purpose, transactions and liabilities; provided, however, that the foregoing shall not require the holders of its Capital Stock to make additional capital contributions to any Note Party;

(x) fail to cause the Representatives of such Note Party to act at all times with respect to such Note Party consistently and in furtherance of the foregoing and in the best interests of such Note Party;

(xi) make any payment or distribution of assets with respect to any obligation of any other Person other than as required or permitted by the Transaction Documents or under trade or commercial agreements entered into in the ordinary course of business;

(xii) engage in any business activity other than (A) entering into and performing its obligations under or with respect to the Transaction Documents, the Material Contracts, any agreement entered into in connection with any Permitted Royalty Monetization, any New Arrangement entered into in accordance with this Agreement and all documents, instruments or agreements executed and delivered in connection with the foregoing, (B) owning, holding, managing, maintaining and otherwise dealing with the Transferred Assets, the Collateral, the GSK Proceeds, the Collection Account, the Excluded GSK Proceeds or any Permitted Royalty Monetization or any documents related thereto, the Material Contracts and any New Arrangement entered into in accordance with this Agreement, (C) issuing, paying and repaying the Notes and incurring, paying and discharging the Obligations and any other liabilities permitted under the Transaction Documents, and (D) engaging in any activities ancillary or incidental to the foregoing;

(xiii) fail to timely file any Tax returns or timely pay any Taxes as may be required under Law (including in its capacity as withholding agent) except for Taxes contested in good faith by appropriate proceedings, diligently conducted, and for which adequate reserves are maintained in accordance with GAAP or where such Taxes, individually or in the aggregate, are less than $[***] and such failure would not have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of Purchaser Representative to receive the GSK Proceeds;

(xiv) fail to have at least one (1) Independent Manager at all times;

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(xv) without the unanimous consent of the holders of its Capital Stock and its Independent Manager, file or consent to the filing of any petition, either voluntary or involuntary, to take advantage of any applicable insolvency, bankruptcy, liquidation, receivership or reorganization statute, make an assignment for the benefit of creditors, admit in writing its inability to pay its debts as they become due, seek or consent to the appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official for it or for all or any substantial part of its property, or take any action in furtherance of any Insolvency Event; or

(xvi) fail to do or cause to be done all things reasonably necessary to observe all limited liability company formalities and preserve its existence and good standing, including maintaining the independent-manager and bankruptcy-remote governance provisions required by its SPV Organizational Documents.

(c) No Note Party shall issue any Capital Stock in certificated form.

Section 9.02 Merger; Disposition of Assets

(a) No Note Party shall merge or consolidate with or into (whether or not a Note Party is the surviving Person) any other Person and no Note Party will sell, convey, assign, transfer, lease, sublease, license, sublicense or otherwise Dispose of all or substantially all of its assets to any Person in a single transaction or series of related transactions.

(b) No Note Party shall sell, assign, convey, transfer, lease, sublease, license, sublicense or otherwise Dispose of (including by way of merger or consolidation) any right, title or interest in or to all or any part of its business, assets or property of any kind whatsoever, whether tangible or intangible, whether now owned or hereafter acquired, other than (i) pursuant to a New Arrangement, (ii) pursuant to the Note Documents, (iii) pursuant to any Permitted Royalty Monetization, or (iv) with the prior written consent of Purchaser Representative (in its sole discretion). In furtherance of the foregoing, the Note Parties shall not sell, assign, convey, transfer, lease, sublease, license, sublicense or otherwise Dispose of any right, title or interest in or to the GSK Agreement (other than in connection with any Permitted Royalty Monetization), the Meiji License Agreement and the Patents licensed to Issuer (as assignee of the Company pursuant to the Issuer Contribution Agreement) pursuant thereto.

Section 9.03 Liens. The Note Parties shall not, and shall cause the Company not to, create or suffer to exist any Lien on or with respect to Collateral, except for Permitted Liens. The Note Parties shall not, and shall cause the Company not to, create or suffer to exist any Lien on or with respect to the GSK Agreement licensed to Issuer pursuant thereto, except for Permitted Liens and, solely with respect to the continuing first priority granted to Secured Party under the Note Documents, Permitted Liens entitled to priority under Applicable Law.

Section 9.04 Investment Company Act. Neither the Company nor any of its Subsidiaries shall be or become an investment company subject to registration under the Investment Company Act of 1940.

Section 9.05 Limitation on Additional Indebtedness. The Note Parties shall not, directly or indirectly, incur or suffer to exist any Indebtedness; provided, that, Issuer (and, in the case of clause (a), Holdings) may incur:

(a) Indebtedness under this Agreement and the other Transaction Documents;

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(b) to the extent constituting Indebtedness, Contractual Obligations under Control Agreement, Services Agreement, Meiji License Agreement, GSK Agreement and any New Arrangement related thereto, and any agreement entered into in connection with the any Permitted Royalty Monetization;

(c) all taxes, assessments and governmental charges levied upon a Note Party or upon its income, profits or property, solely to the extent timely paid or otherwise appropriately contested in good faith by appropriate proceedings, diligently conducted, and for which adequate reserves are maintained in accordance with GAAP;

(d) to the extent constituting Indebtedness, all costs and expenses of the Independent Manager or other Maintenance Expenses (it being understood that Company shall be required to pay such items in accordance with the Issuer Contribution Agreement); and

(e) Indebtedness consisting of the financing of insurance premiums with the providers of such insurance or their affiliates in the ordinary course of business.

Section 9.06 Limitation on Transactions with Affiliates. The Note Parties shall not, directly or indirectly, enter into any transaction or series of related transactions or participate in any arrangement (including any purchase, sale, lease or exchange of assets or the rendering of any service) with any Affiliate other than any transaction entered into in connection with any Permitted Royalty Monetization or in the ordinary course of business of Issuer upon fair and reasonable terms no less favorable to the Note Parties than it would obtain in a comparable arm’s-length transaction with a Third Party (it being agreed by the Parties that the Transaction Documents and the transactions contemplated or required thereby, including the use of proceeds thereof, shall be deemed to comply with this requirement).

Section 9.07 ERISA.

(a) The Note Parties shall not sponsor, maintain or contribute to, or agree to sponsor, maintain or contribute to, any employee benefit plan (as defined in Section 3(3) of ERISA) whether or not subject to ERISA, that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(b) The Note Parties shall not engage in a non-exempt prohibited transaction under Section 406 of ERISA or Section 4975 of the Code or in any transaction that, assuming that no assets of Purchaser Representative are or are deemed to be Plan Assets, would cause any obligation or action taken or to be taken hereunder (or the exercise by Purchaser Representative of any of its rights under the Note, this Agreement or the other Note Documents) to be a non-exempt prohibited transaction under such provisions.

(c) The Note Parties shall not incur any liability with respect to any obligation to provide medical benefits with respect to any person beyond their retirement or other termination of service, other than coverage mandated by Law, that could, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

Section 9.08 Dividends and Distributions. The Note Parties will not, directly or indirectly, make any dividends or other distributions (whether in cash, securities or other property) to holders of its Capital Stock.

Section 9.09 Limitation on Investments. Issuer shall not make any Investments except Investments held in the form of cash or Cash Equivalents.

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Section 9.10 Sanctions; Anti-Corruption Laws. Issuer shall not, directly or indirectly, use the proceeds of any Notes, or lend, contribute or otherwise make available such proceeds to any Person, to fund any activities of or business with any Person, or in any Designated Jurisdiction, that, at the time of such funding, is the subject of Sanctions, or in any other manner that will result in a violation by any Person of Sanctions or Anti-Corruption Laws.

Section 9.11 Organizational Documents; Certain Amendments. The Note Parties shall not (a) amend, modify, restate or change its Organizational Documents in a manner materially adverse to Purchaser Representative, (b) change its fiscal year, (c) amend, modify or change any of the terms or provisions of any Material Contract without the prior written consent of Purchaser Representative.

Section 9.12 [Reserved].

Section 9.13 Accounts and Payment Instructions.

(a) The Note Parties shall not open any deposit account or securities account other than the Collection Account, without the prior written consent of Purchaser Representative.

(b) Issuer shall not make any change in the instructions to GSK with respect to the deposits of the GSK Proceeds to the Collection Account prior to Payment in Full.

Section 9.14 Tax Status. Issuer shall not take or permit any action that would cause Issuer to cease, for U.S. federal or any applicable state or local income tax purpose, a disregarded entity owned by a U.S. Person.

Article X

EVENTS OF DEFAULT

Section 10.01 Events of Default. If one or more of Events of Default occurs and is continuing, Purchaser Representative shall be entitled to the remedies set forth in Section 10.02.

Section 10.02 Default Remedies. If any Event of Default shall occur and be continuing, Purchaser Representative may, by Notice to Issuer, (a) exercise all rights and remedies available to Purchaser Representative hereunder and under the other Note Documents and Applicable Law (which exercise may be determined in its sole discretion and which such exercise shall not constitute an election of remedies), including enforcement of the security interests created thereby, (b) declare the Notes, all interest thereon, and all other Obligations to be immediately due and payable, whereupon all such amounts shall become immediately due and payable, all without diligence, presentment, demand of payment, protest or further notice of any kind, which are expressly waived by Issuer and (c) declare the obligations of Purchaser Representative hereunder to be terminated, whereupon such obligations shall terminate; provided, however, that if any event of any kind referred to in clause (j) of the definition of “Event of Default” herein occurs as a result of an Insolvency Event of Issuer, all amounts payable hereunder by Issuer shall become immediately due and payable and Purchaser Representative shall be entitled to exercise rights and remedies under the Note Documents and Applicable Law without diligence, presentment, demand of payment, protest or notice of any kind (including any notice by Purchaser Representative of a declaration requiring prepayment of the Notes under Section 3.02, should Purchaser Representative so elect), all of which are hereby expressly waived by Issuer. Each Notice delivered pursuant to this Section 10.02 shall be effective when sent.

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Section 10.03 Right of Set-off; Sharing of Set-off.

(a) If any amount payable hereunder is not paid as and when due, Issuer irrevocably authorizes Purchaser Representative (i) to proceed, to the fullest extent permitted by Applicable Law, without prior notice, by right of set-off, bankers’ lien, counterclaim or otherwise, against any assets of Issuer in any currency that may at any time be in the possession of Purchaser Representative or any of its Affiliates, to the full extent of all amounts payable to Purchaser Representative hereunder or (ii) to charge to Issuer’s account with Purchaser Representative or any of its Affiliates the full extent of all amounts payable by Issuer to Purchaser Representative hereunder; provided, however, that Purchaser Representative shall notify Issuer of the exercise of such right promptly following such exercise.

(b) If any Purchaser shall, by exercising any right of setoff or counterclaim or otherwise, obtain payment in respect of any principal of or interest on the Notes or other obligations owed to such Purchaser resulting in such Purchaser’s receiving payment of a proportion of the aggregate amount of the Notes and accrued interest thereon or other obligations owed to such Purchaser greater than its pro rata share thereof as provided herein, then Purchaser receiving such greater proportion shall (a) notify the other Purchasers of such fact, and (b) purchase (for cash at face value) participations in the Notes and such other obligations of the other Purchasers, or make such other adjustments as shall be equitable, so that the benefit of all such payments shall be shared by Purchasers ratably in accordance with the aggregate amount of principal of and accrued interest on their respective Notes and other amounts owing them; provided, that, the provisions of this Section 10.03(b) shall (x) not be construed to apply to (A) any payment made by Issuer pursuant to and in accordance with the express terms of this Agreement or (B) any payment obtained by a Purchaser as consideration for the assignment of or sale of a participation in the Notes to any Assignee and (y) only be applicable if there is more than one Purchaser.

Section 10.04 Rights Not Exclusive. The rights provided for herein are cumulative and are not exclusive of any other rights, powers, privileges or remedies provided by Law.

Article XI

INDEMNIFICATION

Section 11.01 Losses.

(a) The Note Parties agree to defend (subject to Indemnitees’ selection of counsel), indemnify, pay and hold harmless each Indemnitee from and against any and all Indemnified Liabilities, in all cases, arising, in whole or in part, out of or relating to any claim, notice, suit or proceeding commenced or threatened in writing (including, without limitation, by electronic means) by any Person (including any Governmental Entity); provided, that, the Note Parties shall not have any obligation to any Indemnitee hereunder with respect to any Indemnified Liabilities to the extent such Indemnified Liabilities arise from (i) the gross negligence or willful misconduct of an Indemnitee, (ii) a breach by an Indemnitee of any Note Document, (iii) arise from any claim, action, suit, inquiry, litigation, investigation or proceeding that does not involve an act or omission of any Note Party or the Company and that is brought by an Indemnitee against any other Indemnitee, and (iv) a decline in sales of the Licensed Product due to factors (including an Insolvency Event of GSK) that are not attributable to the acts or omissions of Issuer or its Affiliates that constitute a breach or default under the Transaction Documents. To the extent that the undertakings to defend, indemnify, pay and hold harmless set forth in this Section 11.01 may be unenforceable in whole or in part because they violate any Law or public policy, the Note Parties shall contribute the maximum portion that they are permitted to pay and satisfy under Applicable

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Law to the payment and satisfaction of all Indemnified Liabilities incurred by Indemnitees or any of them. This Section 11.01 shall not apply with respect to Taxes other than any Taxes that represent losses, claims, damages or similar amounts arising from any non-Tax claim. Amounts owing hereunder shall be payable by Issuer on each Payment Date in accordance with Section 4.02, and shall (other than in connection with a voluntary prepayment pursuant to Section 3.02(b) or as set forth in the Parent Guaranty) be due and payable solely from the GSK Proceeds, or, following the occurrence of a Prepayment Trigger, from proceeds of Collateral and all other assets of Issuer in accordance with the terms of the Note Documents.

(b) To the extent permitted by Applicable Law, no Party shall assert, and each Party hereby waives, any claim against each other Party and such Party’s Affiliates, directors, employees, attorneys or agents, on any theory of liability, for special, indirect, consequential or punitive damages (as opposed to direct or actual damages) (whether or not the claim therefor is based on contract, tort or duty imposed by any applicable legal requirement) arising out of, in connection with, as a result of, or in any way related to, this Agreement or any Note Document or any agreement or instrument contemplated hereby or thereby or referred to herein or therein, the transactions contemplated hereby or thereby, the Notes or the use of the proceeds thereof or any act or omission or event occurring in connection therewith, and each Party hereby waives, releases and agrees not to sue upon any such claim or any such damages, whether or not accrued and whether or not known or suspected to exist in its favor.

Section 11.02 Assumption of Defense; Settlements. If any Indemnitee is entitled to indemnification under this Article XI with respect to any action or proceeding brought by a Third Party that is also brought against any Note Party or the Company, such Note Party or the Company may assume the defense of such action or proceeding with counsel reasonably satisfactory to such Indemnitee. Upon assumption of such defense, such Indemnitee shall have the right to participate in such action or proceeding and to retain its own counsel, but the Note Parties shall not be liable for any legal expenses of other counsel subsequently incurred by such Indemnitee in connection with the defense thereof unless (i) the Note Parties have otherwise agreed to pay such fees and expenses, (ii) the Note Parties shall have failed to employ counsel reasonably satisfactory to such Indemnitee in a timely manner or (iii) such Indemnitee shall have been advised by counsel that there are actual or potential conflicting interests between any Note Party or the Company, on the one hand, and such Indemnitee, on the other hand, including situations in which there are one or more legal defenses available to such Indemnitee that are different from or additional to those available to such Note Party or the Company; provided, that, the Note Parties shall not, in connection with any one such action or proceeding or separate but substantially similar actions or proceedings arising out of the same general allegations, be liable for the fees and expenses of more than one separate firm of attorneys at any time for such Indemnitees, except to the extent that local counsel, in addition to regular counsel, is required in order to effectively defend against such action or proceeding. No Note Party or the Company shall consent to the terms of any compromise or settlement of any action defended by it without the prior written consent of the affected Indemnitee unless such compromise or settlement (x) includes an unconditional release of such Indemnitee from all liability arising out of such action and (y) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of such Indemnitee. The Note Parties shall not be required to indemnify any Indemnitee for any amount paid or payable by such Indemnitee in the settlement of any action, proceeding or investigation without the written consent of Issuer, which consent shall not be unreasonably withheld, conditioned or delayed.

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Article XII

PURCHASER REPRESENTATIVE

Section 12.01 Appointment; Authorization. Each Purchaser hereby appoints HCR SPERO SPV, LLC (or any Affiliate of Purchaser Representative that becomes Purchaser Representative pursuant to the terms hereof) to act on its behalf as Purchaser Representative under the Note Documents and authorizes Purchaser Representative to take such action as Purchaser Representative on its behalf and to exercise such powers under the Note Documents as are delegated to Purchaser Representative by the terms thereof, together with such actions and powers as are reasonably incidental thereto. The provisions of this Article are solely for the benefit of Purchaser Representative and Purchasers, and Issuer shall not have rights as a third-party beneficiary of any of such provisions. It is understood and agreed that the use of the term “agent” or “representative” in this Agreement or in any other Note Document (or any other similar term) with reference to Purchaser Representative is not intended to connote any fiduciary or other implied (or express) obligations arising under agency doctrine of any applicable law. Instead, such term is used as a matter of market custom, and is intended to create or reflect only an administrative relationship between contracting parties.

Section 12.02 Duties. Purchaser Representative shall not have any duties or obligations except those expressly set forth herein and in the other Note Documents, and its duties hereunder shall be administrative in nature. Neither Purchaser Representative nor any of its Affiliates shall be liable for any action taken or not taken by Purchaser Representative (i) with the consent or at the request of the Required Purchasers or (ii) in the absence of its own gross negligence or willful misconduct as determined by a court of competent jurisdiction by final and nonappealable judgment. In all cases in which the Note Documents do not require Purchaser Representative to take specific action, Purchaser Representative shall be fully justified in using its discretion in failing to take or in taking any action thereunder. Purchaser Representative shall be entitled to assume that no Default or Event of Default exists, and shall be deemed not to have knowledge of any Default or Event of Default, unless and until notice describing such Default is given to Purchaser Representative in writing by Issuer or a Purchaser.

Section 12.03 Reliance. Purchaser Representative shall be entitled to rely upon, and shall not incur any liability for relying upon, any notice, request, certificate, consent, statement, instrument, document or other writing (including any electronic message, Internet or intranet website posting or other distribution) believed by it to be genuine and to have been signed, sent or otherwise authenticated by the proper Person. Purchaser Representative also may rely upon any statement made to it orally or by telephone and believed by it to have been made by the proper Person, and shall not incur any liability for relying thereon. Purchaser Representative may consult with legal counsel (who may be counsel for Issuer), independent accountants and other experts selected by it, and shall not be liable for any action taken or not taken by it in accordance with the advice of any such counsel, accountants or experts.

Section 12.04 Indemnification by Purchasers. The Purchasers shall, on a ratable basis, indemnify Purchaser Representative its Affiliates and their respective officers, partners, directors, trustees, employees, agents and controlling Persons (to the extent not reimbursed by Issuer) upon demand against any cost, expense (including counsel fees and disbursements), claim, demand, action, loss or liability (except such as result from Purchaser Representative’s gross negligence, bad faith or willful misconduct as determined by a final non-appealable judgment of a court of competent jurisdiction) that Purchaser Representative may suffer or incur in connection with the Note Documents or any action taken or omitted by Purchaser Representative hereunder or thereunder.

Section 12.05 Non-Reliance. Each Purchaser acknowledges that it has, independently and without reliance upon Purchaser Representative or any other Purchaser or any of their Affiliates and based on such documents and information as it has deemed appropriate, made its own credit analysis and decision

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to enter into this Agreement. Each Purchaser also acknowledges that it will, independently and without reliance upon Purchaser Representative or any other Purchaser or any of their Affiliates and based on such documents and information as it shall from time to time deem appropriate, continue to make its own decisions in taking or not taking action under or based upon this Agreement, any other Note Document or any related agreement or any document furnished hereunder or thereunder.

Section 12.06 Successor Purchaser Representative. Purchaser Representative may, at any time upon [***] prior notice of its resignation to the Purchasers and Issuer, resign as Purchaser Representative. Upon receipt of any such notice of resignation, the Required Purchasers shall have the right, in consultation with Issuer, to appoint a successor Purchaser Representative. So long as no Event of Default has occurred and is continuing, each such appointment shall be subject to the prior consent of Issuer (such consent not to be unreasonably withheld or delayed). Upon the acceptance of a successor’s appointment as Purchaser Representative hereunder and notice of such acceptance to the resigning Purchaser Representative, such successor shall succeed to and become vested with all of the rights, powers, privileges and duties of the resigning (or resigned) Purchaser Representative; the resigning Purchaser Representative’s resignation shall become immediately effective and the resigning Purchaser Representative shall be discharged from all of its duties and obligations hereunder and under the other Note Documents. If no such successor shall have been so appointed by the Required Purchasers and shall have accepted such appointment within [***] after the resigning Purchaser Representative gives notice of its resignation, then the resigning Purchaser Representative, from and following the expiration of such [***] period, shall have the exclusive right, upon [***] notice to Issuer and the Purchasers, to make its resignation effective immediately.

Article XIII

MISCELLANEOUS

Section 13.01 Assignments.

(a) Issuer shall not be permitted to assign this Agreement without the prior written consent of all of the Purchasers and any purported assignment in violation of this Section 13.01 shall be null and void.

(b) Any Purchaser may at any time, including without limitation in connection with a transfer of a Note, assign its rights and obligations hereunder, in whole or in part, to an Assignee and any Purchaser may at any time pledge its rights and obligations hereunder to an Assignee.

(c) The parties to each assignment shall execute and deliver to Issuer an Assignment and Acceptance. Upon an assignment pursuant to Section 13.01(b) hereunder, (i) each reference in this Agreement to a “Purchaser” shall be deemed to be a reference to the assignor and the Assignee to the extent of their respective interests, (ii) such Assignee shall be a Purchaser party to this Agreement and shall have all the rights and obligations of a Purchaser and (iii) the assignor shall be released from its obligations hereunder to a corresponding extent of the assignment, and no further consent or action by any party shall be required, but shall continue to be entitled to the benefits of Article V.

(d) In the event there are multiple Purchasers, all payments of principal, interest, fees and any other amounts payable pursuant to the Note Documents shall be allocated on a pro rata basis among Purchasers according to their proportionate interests in the Notes.

(e) Issuer and Purchaser shall, from time to time at the request of the other party hereto, execute and deliver any documents that are necessary to give full force and effect to an assignment permitted hereunder, including a new Note in exchange for the Note held by any Purchaser.

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Section 13.02 Successors and Assigns. Subject to the provisions of Section 13.01, this Agreement shall be binding upon, inure to the benefit of and be enforceable by, the parties hereto and their respective permitted successors and assigns.

Section 13.03 Notices. All Notices and other communications under this Agreement to a party hereto shall be in writing and shall be sent by email with PDF attachment, internationally recognized overnight delivery service or personal delivery to the following address of such party, or to such other address as shall be designated from time to time by such party in accordance with this Section 13.03:

(a) If to Issuer:

 

c/o Spero Therapeutics, Inc.

675 Massachusetts Avenue

14th Floor

Cambridge, MA 02139

Attention: Esther Rajavelu

Email: [***]

With a copy (which shall not constitute notice) to:

 

WilmerHale

60 State Street

Boston, MA 02109

Attention: George W. Shuster Jr.; Nathan J. Moore

Email: george.shuster@wilmerhale.com; nathan.moore@wilmerhale.com

 

 

(b) If to Purchaser Representative:

 

c/o HCRX Investments HoldCo, L.P.

300 Atlantic Street, Suite 600

Stamford, CT 06901

Attention: [***]

Email: [***];

 

with a copy (which shall not constitute notice) to:

 

c/o HCRX Investments HoldCo, L.P.

300 Atlantic Street, Suite 600

Stamford, CT 06901

Attention: Chief Legal Officer

Email: [***]

 

with a copy (which shall not constitute notice) to:

 

Sidley Austin, LLP

2323 Cedar Springs Rd.

Dallas, Texas 75205

Attention: [***]

Email: [***]

 

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Any Party may change its address for the receipt of Notices at any time by giving Notice thereof to each other Party. Except as otherwise provided herein, any Notice authorized or required to be given by this Agreement shall be effective when received.

Section 13.04 Entire Agreement. This Agreement, including the Exhibits and Schedules attached to this Agreement, together with the Note Documents, sets forth the entire agreement and understanding between the parties hereto as to the subject matter hereof. All express or implied agreements, promises, assurances, arrangements, representations, warranties and understandings as to the subject matter hereof, whether oral or written, heretofore made are superseded by this Agreement.

Section 13.05 Modification. No Note Document or provision thereof may be waived, amended or modified except, in the case of this Agreement, by an agreement or agreements in writing executed by Issuer, Purchaser Representative and the Required Purchasers or, in the case of any other Note Document, by an agreement or agreements in writing entered into by the parties thereto with the prior written consent of Purchaser Representative. No amendment, modification, waiver or consent shall, unless in writing and signed by Purchaser Representative, in addition to Issuer and the Required Purchasers, affect the rights, privileges, duties or obligations of Purchaser Representative under this Agreement or any other Note Document.

Section 13.06 No Delay; Waivers; etc. No delay on the part of Purchaser Representative in exercising any power or right hereunder shall operate as a waiver thereof nor shall any single or partial exercise of any power or right hereunder preclude other or further exercise thereof or the exercise of any other power or right. No Purchaser shall be deemed to have waived any rights hereunder unless such waiver shall be in writing and signed by such Purchaser.

Section 13.07 Severability. If any term or provision of this Agreement is held to be invalid, illegal or unenforceable by a court, arbitrator or Governmental Entity of competent jurisdiction, such invalidity, illegality or unenforceability shall not affect any other term or provision of this Agreement, which shall remain in full force and effect, and the parties hereto shall replace such term or provision with a new term or provision permitted by Applicable Law and having an economic effect as close as possible to the invalid, illegal or unenforceable term or provision. The holding of a term or provision to be invalid, illegal or unenforceable in a jurisdiction shall not have any effect on the application of such term or provision in any other jurisdiction.

Section 13.08 Determinations. Each determination or calculation by Purchaser Representative hereunder shall, in the absence of manifest error, be conclusive and binding on the Parties.

Section 13.09 Replacement of Note. Upon the loss, theft, destruction, or mutilation of the Note and (a) in the case of loss, theft or destruction, upon receipt by Issuer of indemnity or security reasonably satisfactory to it (except that if the holder of such Note is a Purchaser or any other financial institution of recognized responsibility, the holder’s own agreement of indemnity shall be deemed to be satisfactory) or (b) in the case of mutilation, upon surrender to Issuer of any mutilated Note, Issuer shall execute and deliver in lieu thereof a new Note, dated the Closing Date, in the same Principal Amount.

Section 13.10 Governing Law. This Agreement shall be governed by and construed and interpreted in accordance with the Laws of the State of New York without regard to the conflicts of Laws principles thereof to the extent that such principles would require or permit the application of the Laws of a jurisdiction other than the State of New York.

Section 13.11 Jurisdiction. Each party hereto irrevocably submits to the exclusive jurisdiction of (a) the courts of the State of New York located in New York County, New York and (b) the U.S. District

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Court for the Southern District of New York for the purposes of any suit, action or other proceeding arising out of, relating to or in connection with this Agreement or any transaction contemplated hereby. Each party hereto agrees to commence any action, suit or other proceeding arising out of, relating to or in connection with this Agreement or any transaction contemplated hereby in the U.S. District Court for the Southern District of New York or if such suit, action or other proceeding may not be brought in such court for jurisdictional reasons, in the courts of the State of New York located in New York County, New York. Each party hereto irrevocably and unconditionally waives any objection to the laying of venue of any action, suit or other proceeding arising out of, relating to or in connection with this Agreement or any transaction contemplated hereby in (i) the courts of the State of New York located in New York County, New York or (ii) the U.S. District Court for the Southern District of New York, and hereby further irrevocably and unconditionally waives, and shall not assert by way of motion, defense, or otherwise, in any such suit, action or proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper, or that this Agreement and the transactions contemplated hereby and thereby may not be enforced in or by any of the above-named courts.

Section 13.12 Waiver of Jury Trial. EACH PARTY HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING, CLAIM OR COUNTERCLAIM ARISING OUT OF OR RELATING TO ANY TRANSACTION DOCUMENT OR THE TRANSACTIONS CONTEMPLATED UNDER ANY TRANSACTION DOCUMENT (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO ANY TRANSACTION DOCUMENT. EACH PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF THE OTHER PARTY HERETO HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT THE OTHER PARTY HERETO WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTY HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 13.12.

Section 13.13 Waiver of Immunity. To the extent that any Note Party has or hereafter may be entitled to claim or may acquire, for itself or any of its assets, any immunity from suit, jurisdiction of any court or from any legal process (whether through service or notice, attachment prior to judgment, attachment in aid of execution, or otherwise) with respect to itself or any of its property, each Note Party hereby irrevocably waives such immunity in respect of its obligations hereunder and under the Notes to the fullest extent permitted by law.

Section 13.14 Nonliability of Purchasers and Purchaser Representative. The relationship between Issuer on the one hand and the Purchasers and Purchaser Representative on the other hand shall be solely that of borrower and lender. Neither Purchaser Representative nor any Purchaser shall have any fiduciary or advisory responsibility to Issuer. Neither Purchaser Representative nor any Purchaser undertakes any responsibility to Issuer to review or inform Issuer of any matter in connection with any phase of Issuer’s business or operations. Neither Purchaser Representative nor any Purchaser shall have any liability with respect to, and Issuer hereby waives, releases and agrees not to sue for, any special, indirect, punitive or consequential damages or liabilities.

Section 13.15 Limitation on Rights of Others. Except for the Indemnitees referred to in Section 11.01, no Person other than a Party shall have any legal or equitable right, remedy or claim under or in respect of this Agreement.

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Section 13.16 Survival.

(a) The Obligations of Issuer contained in Sections 4.06, 4.07, Article V, Article XI and this Section 13.16 shall survive the repayment of the Notes, assignment of the Notes by any Purchaser and the cancellation of the Note and the termination of the other obligations of Issuer hereunder.

(b) All representations and warranties by Issuer, whether with respect to Issuer, the Company, any respective Affiliate or any asset or property, contained in this Agreement shall survive the execution, delivery and acceptance thereof by the Parties and the closing of the transactions described in this Agreement and continue in effect until payment of all amounts due to Purchaser Representative under the Note Documents.

Section 13.17 Confidentiality.

(a) Until Payment in Full, and for a period of [***] thereafter, each Party shall maintain in strict confidence all Confidential Information and materials disclosed or provided to it by the other Party, except as approved in writing in advance by the disclosing Party, and shall not use or reproduce the disclosing Party’s Confidential Information for any purpose other than as required to carry out its obligations and exercise its rights pursuant to this Agreement. Notwithstanding the foregoing, the obligations of confidentiality and non-use set forth in this Section 13.17 shall not apply to the extent that the receiving Party or its Affiliates: (a) discloses such Confidential Information solely on a “need to know basis” to its employees, consultants and Affiliates as well as any actual or potential acquirers, merger partners, licensees, permitted assignees, collaborators (including licensees), subcontractors, investment bankers, investors, limited partners, partners, lenders, or other financial partners, and its and their respective directors, employees, contractors and agents, on a confidential basis to the extent requested by an authorized representative of a U.S. or foreign tax authority, or (b) discloses Confidential Information in response to a routine audit or examination by, or a blanket document request from, a Governmental Entity. A Party receiving any such Confidential Information hereunder agrees to institute measures to protect the Confidential Information in a manner consistent with the measures it uses to protect its own most sensitive proprietary and confidential information, which in any event must not be less than a reasonable standard of care. Each Party shall be responsible for the breach of this Section 13.17 by its employees, consultants or Third Parties to whom such disclosure is made pursuant to this Section 13.17. Each Party shall immediately notify the other Party upon discovery of any loss or unauthorized disclosure of the other Party’s Confidential Information.

(b) The obligations of confidentiality and non-use set forth in Section 13.17(a) shall not apply to the extent that the receiving Party or its Affiliates is required to disclose Confidential Information pursuant to: (i) an order of a court of competent jurisdiction; (ii) Applicable Laws; (iii) regulations or rules of a securities exchange; or (iv) requirement of a Governmental Entity.

(c) Effective upon the date hereof, the Confidentiality Agreement shall terminate and be of no further force or effect, and shall be superseded by the provisions of this Section 13.17.

Section 13.18 Patriot Act Notification. Purchaser Representative hereby notifies Issuer, Holdings and the Company that, pursuant to the requirements of the Patriot Act, regulations promulgated thereunder and other Applicable Law, Purchasers may be required to obtain, verify and record information that identifies each Note Party and the Company, including the name and address of each such party and other information that will allow Purchaser to identify each such party in accordance with the Patriot Act. The Company and each Note Party agree to provide, promptly following a request by a Purchaser, all such

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documentation and information as such Purchaser reasonably requests in order to comply with its ongoing obligations under applicable “know your customer” and anti-money laundering rules and regulations, including the Patriot Act.

Section 13.19 Electronic Execution; Counterparts. This Agreement, any Note Document and any other Notice, including Notice required to be in writing, may be in the form of an Electronic Record and may be executed using Electronic Signatures. This Agreement may be executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. Copies of executed counterparts transmitted by email with PDF attachment shall be considered original executed counterparts.

Section 13.20 Limited Recourse; Disposition of Excluded GSK Proceeds. For the avoidance of doubt and notwithstanding anything else to the contrary in this Agreement or the other Note Documents (other than with respect to the Parent Guaranty and the obligations of the Company to pay the Maintenance Expenses and to maintain insurance as set forth in the Issuer Contribution Agreement), all Obligations and Guaranteed Obligations shall (other than in connection with a voluntary prepayment pursuant to Section 3.02(b) or as set forth in the Parent Guaranty) be payable hereunder solely from the GSK Proceeds, or, following the occurrence of a Prepayment Trigger, from proceeds of Collateral and all other assets of Issuer in accordance with the terms of the Note Documents (it being understood and agreed that the following sentence does not apply to the separate obligations of the Company pursuant to the Parent Guaranty or the obligation of the Company to pay the Maintenance Expenses and to maintain insurance as set forth in the Issuer Contribution Agreement). For the avoidance of doubt and notwithstanding anything else to the contrary in this Agreement or the other Note Documents, the Note Parties and the Company shall be permitted to enter into and consummate one or more Permitted Royalty Monetization, and no such transfer shall result in a Default or Event of Default hereunder or any other Note Document, in each case so long as such transfer complies with the subordination, intercreditor and other requirements set forth in the definition of Permitted Royalty Monetization.

Article XIV

GUARANTY

Section 14.01 Guaranty of Obligations. Holdings hereby irrevocably and unconditionally guarantees to Purchaser Representative the due and punctual payment in full and performance of all Obligations when the same shall become due, whether at stated maturity, by required prepayment, declaration, acceleration, demand or otherwise (including amounts that would become due but for the operation of the automatic stay under Section 362(a) of the U.S. Bankruptcy Code, 11 U.S.C. § 362(a)) (collectively, the “Guaranteed Obligations”).

Section 14.02 Payment by Holdings. Holdings hereby agrees, in furtherance of the foregoing and not in limitation of any other right which Purchaser Representative may have at Law or in equity against Holdings by virtue hereof, that upon the occurrence of the failure of Issuer to pay any of the Guaranteed Obligations when and as the same shall become due, whether at stated maturity, by required prepayment, declaration, acceleration, demand or otherwise (including amounts that would become due but for the operation of the automatic stay under Section 362(a) of the U.S. Bankruptcy Code, 11 U.S.C. § 362(a)), Holdings will upon demand pay, or cause to be paid, in cash, to Purchaser Representative, an amount equal to the sum of the unpaid principal amount of all Guaranteed Obligations then due as aforesaid, accrued and unpaid interest on such Guaranteed Obligations (including interest which, but for Issuer’s becoming the subject of a case under any Bankruptcy Law, would have accrued on such Guaranteed Obligations, whether or not a claim is allowed against Issuer for such interest in the related bankruptcy case) and all other Guaranteed Obligations then owed to Purchaser Representative as aforesaid.

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Section 14.03 Liability of Holdings Absolute. Holdings agrees that its obligations hereunder are irrevocable, absolute, independent and unconditional and shall not be affected by any circumstance which constitutes a legal or equitable discharge of a guarantor or surety other than payment in full of the Guaranteed Obligations. In furtherance of the foregoing and without limiting the generality thereof, Holdings agrees as follows:

(a) this Guaranty is a guaranty of payment when due and not of collectability; this Guaranty is a primary obligation of Holdings and not merely a contract of surety;

(b) Purchaser Representative may enforce this Guaranty upon the occurrence and during the continuance of an Event of Default notwithstanding the existence of any dispute between Issuer and any Purchaser Representative with respect to whether such Event of Default has occurred and is continuing;

(c) the obligations of Holdings hereunder are independent of the Obligations of Issuer and the obligations of any other guarantor of the Obligations of Issuer, and a separate action or actions may be brought and prosecuted against such Holdings whether or not any action is brought against Issuer or any such other guarantor and whether or not Issuer is joined in any such action or actions;

(d) payment by Issuer or any other guarantor of a portion, but not all, of the Guaranteed Obligations shall in no way limit, affect, modify or abridge any Holdings liability for any portion of the Guaranteed Obligations which has not been paid; provided, that, without limiting the generality of the foregoing, if Purchaser Representative is awarded a judgment in any suit brought to enforce any Holdings covenant to pay a portion of the Guaranteed Obligations, such judgment shall not be deemed to release such Holdings from its covenant to pay the portion of the Guaranteed Obligations that is not the subject of such suit, and such judgment shall not, except to the extent satisfied by such Holdings, limit, affect, modify or abridge any other liability of Holdings hereunder in respect of the Guaranteed Obligations;

(e) any Purchaser Representative, upon such terms as it deems appropriate, without notice or demand and without affecting the validity or enforceability hereof or giving rise to any reduction, limitation, impairment, discharge or termination of any Holdings liability hereunder, from time to time may (i) renew, extend, accelerate, increase the rate of interest on, or otherwise change the time, place, manner or terms of payment of the Guaranteed Obligations; (ii) settle, compromise, release or discharge, or accept or refuse any offer of performance with respect to, or substitutions for, the Guaranteed Obligations or any agreement relating thereto and/or subordinate the payment of the same to the payment of any other obligations; (iii) request and accept other guaranties of the Guaranteed Obligations and take and hold security for the payment hereof or the Guaranteed Obligations; (iv) release, surrender, exchange, substitute, compromise, settle, rescind, waive, alter, subordinate or modify, with or without consideration, any security for payment of the Guaranteed Obligations, any other guaranties of the Guaranteed Obligations, or any other obligation of any Person (including any other guarantor) with respect to the Guaranteed Obligations; (v) enforce and apply any security now or hereafter held by or for the benefit of such Purchaser Representative in respect hereof or the Guaranteed Obligations and direct the order or manner of sale thereof, or exercise any other right or remedy that such Purchaser Representative may have against any such security, in each case, as such Purchaser Representative in its discretion may determine consistent herewith and any applicable security agreement, including foreclosure on any such security pursuant to one or more judicial or nonjudicial sales, whether or not every aspect of any such sale is commercially reasonable, and even though such action operates to impair or extinguish any right of reimbursement or subrogation or other right or remedy of Holdings against Issuer or any security for the Guaranteed Obligations; and (vi) exercise any other rights available to it under the Note Documents or Law;

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(f) this Guaranty and the obligations of Holdings hereunder shall be valid and enforceable and shall not be subject to any reduction, limitation, impairment, discharge or termination for any reason (other than payment in full of the Guaranteed Obligations), including the occurrence of any of the following, whether or not Holdings shall have had notice or Knowledge of any of them: (i) any failure or omission to assert or enforce or agreement or election not to assert or enforce, or the stay or enjoining, by order of court, by operation of Law or otherwise, of the exercise or enforcement of, any claim or demand or any right, power or remedy (whether arising under the Note Documents, in equity or otherwise) with respect to the Guaranteed Obligations or any agreement relating thereto, or with respect to any other guaranty of or security for the payment of the Guaranteed Obligations; (ii) any rescission, waiver, amendment or modification of, or any consent to departure from, any of the terms or provisions (including provisions relating to events of default) hereof, any of the other Note Documents or any agreement or instrument executed pursuant thereto, or of any other guaranty or security for the Guaranteed Obligations, in each case, whether or not in accordance with the terms hereof or such Note Document or any agreement relating to such other guaranty or security; (iii) the Guaranteed Obligations, or any agreement relating thereto, at any time being found to be illegal, invalid or unenforceable in any respect; (iv) the application of payments received from any source (other than payments received pursuant to the other Note Documents or from the proceeds of any security for the Guaranteed Obligations, except to the extent such security also serves as Collateral for Indebtedness other than the Guaranteed Obligations) to the payment of Indebtedness other than the Guaranteed Obligations, even though Purchaser Representative might have elected to apply such payment to any part or all of the Guaranteed Obligations; (v) Purchaser Representative’s consent to the change, reorganization or termination of the corporate structure or existence of Issuer and to any corresponding restructuring of the Guaranteed Obligations; (vi) any failure to perfect or continue perfection of a security interest in any Collateral which secures any of the Guaranteed Obligations; (vii) any defenses, set-offs or counterclaims that Issuer may allege or assert against Purchaser Representative in respect of the Guaranteed Obligations, including failure of consideration, breach of warranty, payment, statute of frauds, statute of limitations, accord and satisfaction, and usury; and (viii) any other act or thing or omission, or delay to do any other act or thing, which may or might in any manner or to any extent vary the risk of Holdings as an obligor in respect of the Guaranteed Obligations.

Section 14.04 Waivers by Holdings. Holdings hereby waives, to the fullest extent permitted by Law, for the benefit of Purchaser Representative: (a) any right to require any Purchaser, as a condition of payment or performance by Holdings, to (i) proceed against Issuer, any other guarantor of the Guaranteed Obligations or any other Person, (ii) proceed against or exhaust any security held from Issuer, any such other guarantor or any other Person, (iii) proceed against or have resort to any balance of any deposit account (including, without limitation, the Collection Account) or credit on the books of any Purchaser in favor of Issuer or any other Person, or (iv) pursue any other remedy in the power of any Purchaser whatsoever; (b) any defense arising by reason of the incapacity, lack of authority or any disability or other defense of Issuer or any other guarantor including any defense based on or arising out of the lack of validity or the unenforceability of the Guaranteed Obligations or any agreement or instrument relating thereto or by reason of the cessation of the liability of Issuer or any other guarantor from any cause other than payment in full of the Guaranteed Obligations; (c) any defense based upon any statute or rule of Law which provides that the obligation of a surety must be neither larger in amount nor in other respects more burdensome than that of the principal; (d) any defense based upon any Purchaser’s errors or omissions in the administration of the Guaranteed Obligations, except behavior which amounts to bad faith or gross negligence; (e)(i) any principles or provisions of Law, statutory or otherwise, which are or might be in conflict with the terms hereof and any legal or equitable discharge of such Holdings obligations hereunder, (ii) the benefit of any statute of limitations affecting such Holdings liability hereunder or the enforcement hereof, (iii) any rights to set-offs, recoupments and counterclaims, and (iv) promptness, diligence and any requirement that any

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Purchaser protect, secure, perfect or insure any security interest or Lien or any property subject thereto; (f) notices, demands, presentments, protests, notices of protest, notices of dishonor and notices of any action or inaction, including acceptance hereof, notices of Default hereunder, or any agreement or instrument related thereto, notices of any renewal, extension or modification of the Guaranteed Obligations or any agreement related thereto, notices of any extension of credit to Issuer or issuances of Notes and notices of any of the matters referred to in Section 13.03 and any right to consent to any thereof; and (g) any defenses or benefits that may be derived from or afforded by Law which limit the liability of or exonerate Holdings or sureties, or which may conflict with the terms hereof.

Section 14.05 Holdings Rights of Subrogation, Contribution, etc. Until the Guaranteed Obligations shall have been paid in full, Holdings hereby waives, to the fullest extent permitted by Law, any claim, right or remedy, direct or indirect, that Holdings now has or may hereafter have against Issuer or any other guarantor or any of its assets in connection with this Guaranty or the performance by Holdings of its obligations hereunder, in each case, whether such claim, right or remedy arises in equity, under contract, by statute, under common Law or otherwise and including (a) any right of subrogation, reimbursement or indemnification that Holdings now has or may hereafter have against Issuer with respect to the Guaranteed Obligations, (b) any right to enforce, or to participate in, any claim, right or remedy that any Purchaser now has or may hereafter have against Issuer, and (c) any benefit of, and any right to participate in, any Collateral or security now or hereafter held by any Purchaser. In addition, until the Guaranteed Obligations shall have been paid in full, Holdings shall withhold exercise of any right of contribution Holdings may have against any other guarantor of the Guaranteed Obligations. Holdings further agrees that, to the extent the waiver or agreement to withhold the exercise of its rights of subrogation, reimbursement, indemnification and contribution as set forth herein is found by a court of competent jurisdiction to be void or voidable for any reason, any rights of subrogation, reimbursement or indemnification Holdings may have against Issuer or against any Collateral or security, and any rights of contribution Holdings may have against any such other guarantor, shall be junior and subordinate to any rights any Purchaser may have against Issuer, to all right, title and interest any Purchaser may have in any such Collateral or security, and to any right any Purchaser may have against such other guarantor. If any amount shall be paid to Holdings on account of any such subrogation, reimbursement, indemnification or contribution rights at any time when all Guaranteed Obligations shall not have been finally paid in full, such amount shall be held in trust for Purchaser and shall forthwith be paid over to Purchaser to be credited and applied against the Guaranteed Obligations, whether matured or unmatured, in accordance with the terms hereof.

Section 14.06 Subordination of Other Obligations. Any Indebtedness of Issuer or any other guarantor now or hereafter held by Holdings (the “Obligee Holdings”) is hereby subordinated in right of payment to the Guaranteed Obligations, and any such Indebtedness collected or received by Holdings after an Event of Default has occurred and is continuing shall be held in trust for Purchaser Representative and shall forthwith be paid over to Purchaser Representative to be credited and applied against the Guaranteed Obligations but without affecting, impairing or limiting in any manner the liability of Holdings under any other provision hereof. Notwithstanding anything in this Agreement, unless an Event of Default shall then exist, Holdings may receive payments on such Indebtedness.

Section 14.07 Continuing Guaranty. This Guaranty is a continuing guaranty and shall remain in effect until all of the Guaranteed Obligations shall have been paid in full. Holdings hereby irrevocably waives, to the fullest extent permitted by Law, any right to revoke this Guaranty as to future transactions giving rise to any Guaranteed Obligations.

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Section 14.08 Authority of Holdings or Issuer. It is not necessary for any Purchaser Representative to inquire into the capacity or powers of Holdings or Issuer or the officers, directors or agent acting or purporting to act on behalf of any of them.

Section 14.09 Financial Condition of Issuer. Issuer may sell additional Notes and the Indebtedness and other Obligations under the Notes and other Note Documents may be continued from time to time, in each case, without notice to or authorization from Holdings regardless of the financial or other condition of Issuer at the time of any such grant or continuation. Purchaser Representative shall not have any obligation to disclose or discuss with Holdings its assessment, or Holdings assessment, of the financial condition of Issuer. Holdings has adequate means to obtain information from Issuer on a continuing basis concerning the financial condition of Issuer and its ability to perform its Obligations under the Note Documents, and Holdings assumes the responsibility for being and keeping informed of the financial condition of Issuer and of all circumstances bearing upon the risk of nonpayment of the Guaranteed Obligations. Holdings hereby waives, to the fullest extent permitted by Law, and relinquishes any duty on the part of any Purchaser to disclose any matter, fact or thing relating to the business, operations or conditions of Issuer now known or hereafter known by any Purchaser.

Section 14.10 Bankruptcy, etc. (a) So long as any Guaranteed Obligations remain outstanding, Holdings shall not, without the prior written consent of Purchasers, commence or join with any other Person in commencing any bankruptcy, examinership, reorganization or insolvency case or proceeding of or against Issuer or any other guarantor. The obligations of Holdings hereunder shall not be reduced, limited, impaired, discharged, deferred, suspended or terminated by any case or proceeding, voluntary or involuntary, involving the bankruptcy, examinership, insolvency, receivership, reorganization, liquidation or arrangement of Issuer or any other guarantor or by any defense which Issuer or any other guarantor may have by reason of the order, decree or decision of any court or administrative body resulting from any such proceeding.

(a) Holdings acknowledges and agrees that any interest on any portion of the Guaranteed Obligations which accrues after the commencement of any case or proceeding referred to in clause (a) above (or, if interest on any portion of the Guaranteed Obligations ceases to accrue by operation of Law by reason of the commencement of such case or proceeding, such interest as would have accrued on such portion of the Guaranteed Obligations if such case or proceeding had not been commenced) shall be included in the Guaranteed Obligations because it is the intention of Holdings and Purchaser Representative that the Guaranteed Obligations which are guaranteed by Holdings pursuant hereto should be determined without regard to any rule of Law or order which may relieve Issuer of any portion of such Guaranteed Obligations. Holdings will permit any trustee in bankruptcy, receiver, examiner, debtor in possession, assignee for the benefit of creditors or similar Person to pay Purchaser Representative, or allow the claim of Purchaser Representative in respect of, any such interest accruing after the date on which such case or proceeding is commenced.

(b) In the event that all or any portion of the Guaranteed Obligations are paid by Issuer, the obligations of Holdings hereunder shall continue and remain in full force and effect or be reinstated, as the case may be, in the event that all or any part of such payment(s) are rescinded or recovered directly or indirectly from any Purchaser as a preference, fraudulent transfer or otherwise, and any such payments which are so rescinded or recovered shall constitute Guaranteed Obligations for all purposes hereunder.

[Signature page follows.]

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IN WITNESS WHEREOF, the Parties have duly executed this Agreement as of the day and year first above written.

 

SPERO SPV, LLC,

as Issuer

 

 

By:

/s/ Esther Rajavelu

 

Name: Esther Rajavelu

 

Title: Chief Executive Officer, Chief Financial Officer and Treasurer

 

SPERO HOLDINGS SPV, LLC,

as Holdings

 

 

By:

/s/ Esther Rajavelu

 

Name: Esther Rajavelu

 

Title: Chief Executive Officer, Chief Financial Officer and Treasurer

 

 


 

 

HCR SPERO SPV, LLC,

as Purchaser Representative and Purchaser

 

 

By:

/s/ Clarke B. Futch

 

Name: Clarke B. Futch

 

Title: Authorized Signatory

 

HCRX Investments Holdco, L.P.,

as Purchaser

 

 

By:

/s/ Clarke B. Futch

 

Name: Clarke B. Futch

 

Title: Chairman & Chief Executive Officer

 

 


Exhibit 10.6

Certain identified information has been excluded from the exhibit by marking such portions with brackets (“[***]”) because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential.

 

 

ROYALTY AND MILESTONE PAYMENT INTEREST PURCHASE AND SALE AGREEMENT

by and among

SPERO SPV, LLC,

as the Company,

THE ENTITIES MANAGED BY HEALTHCARE ROYALTY MANAGEMENT, LLC LISTED ON THE SIGNATURE PAGES HERETO, as the Purchasers

and

HCR SPERO SPV, LLC, as the Purchaser Representative

Dated July 8, 2026

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

TABLE OF CONTENTS

 

 

Page

ARTICLE I DEFINED TERMS AND RULES OF CONSTRUCTION

1

Section 1.1

Defined Terms

1

Section 1.2

Other Interpretive Provisions

19

Section 1.3

Accounting Terms

20

ARTICLE II PURCHASE, SALE AND ASSIGNMENT OF THE PURCHASED PROCEEDS; CLOSING AND PAYMENT OF PURCHASE PRICE

20

Section 2.1

Purchase, Sale and Assignment

20

Section 2.2

Purchase Price

21

Section 2.3

No Assumed Obligations

21

Section 2.4

Excluded Assets

21

ARTICLE III COLLECTION ACCOUNT; PAYMENT PROVISIONS; Taxes

22

Section 3.1

Collection Account

22

Section 3.2

Payment of GSK Proceeds

23

Section 3.3

Payment/Currency Exchange

26

Section 3.4

Taxes

26

Section 3.5

Mitigation

28

Section 3.6

Survival

29

ARTICLE IV CLOSING

29

Section 4.1

Closing

29

Section 4.2

Closing Deliverables of the Company

29

ARTICLE V REPRESENTATIONS AND WARRANTIES

30

Section 5.1

Existence, Qualification and Power; Subsidiaries

30

Section 5.2

Authorization; No Contravention

31

Section 5.3

Execution and Delivery; Binding Effect

31

Section 5.4

No Liens; Title to Purchased Proceeds

31

Section 5.5

Governmental and Third Party Authorizations

31

Section 5.6

No Material Adverse Effect

32

Section 5.7

No Litigation

32

Section 5.8

Solvency

32

Section 5.9

No Brokers’ Fees

32

Section 5.10

Compliance with Laws

32

Section 5.11

Investment Company Act

32

Section 5.12

Taxes

32

Section 5.13

Ownership of the Company

33

Section 5.14

Material Contracts

33

Section 5.15

Perfection of Security Interests in the Back-up Collateral

35

Section 5.16

Names

36

Section 5.17

Sanctions Concerns; Anti-Corruption Laws; PATRIOT Act

36

Section 5.18

Indebtedness

36

Section 5.19

Intellectual Property Matters

37

Section 5.20

Compliance of Licensed Products

39

Section 5.21

Disclosure

39

 


 

ARTICLE VI COVENANTS

39

Section 6.1

Books and Records

39

Section 6.2

Notices

40

Section 6.3

Preservation of Existence, Etc

42

Section 6.4

Compliance with Laws

42

Section 6.5

GSK License Agreement

42

Section 6.6

Termination of the GSK License Agreement

44

Section 6.7

Back-up Collateral Matters

45

Section 6.8

Compliance with Material Contracts

46

Section 6.9

Audits

46

Section 6.10

IP Rights

48

Section 6.11

Compliance with Permits

49

Section 6.12

Additional Covenants of the Company

49

Section 6.13

Payment of Taxes

50

Section 6.14

Parent’s Performance on Behalf of the Company

50

ARTICLE VII NEGATIVE COVENANTS

50

Section 7.1

Liens

50

Section 7.2

Fundamental Changes

51

Section 7.3

Organization Documents; Fiscal Year; Legal Name, Jurisdiction of Organization and Form of Organization; Certain Amendments; Subsidiaries

51

Section 7.4

Anti-Corruption Laws; Anti-Terrorism Laws

51

Section 7.5

Tax Status

52

ARTICLE VIII REPRESENTATIONS AND WARRANTIES OF THE PurchaserS and THE PURCHASER REPRESENTATIVE

52

Section 8.1

Organization

52

Section 8.2

No Conflicts

52

Section 8.3

Authorization

52

Section 8.4

Governmental and Third Party Authorizations

52

Section 8.5

No Litigation

53

Section 8.6

No Brokers’ Fees

53

Section 8.7

Funds Available

53

Section 8.8

Access to Information

53

Section 8.9

Tax Status.

53

ARTICLE IX Purchaser Representative

53

Section 9.1

Appointment; Authorization

53

Section 9.2

Duties

53

Section 9.3

Reliance

54

Section 9.4

Indemnification by Purchasers

54

Section 9.5

Non-Reliance

54

Section 9.6

Successor Purchaser Representative

54

ARTICLE X MISCELLANEOUS

55

Section 10.1

Amendments; No Waivers

55

Section 10.2

Notices

55

Section 10.3

No Waiver; Cumulative Remedies; Enforcement

56

Section 10.4

Expenses; Indemnity.

56

Section 10.5

Payments Set Aside

59

 


 

Section 10.6

Assignment

60

Section 10.7

Treatment of Certain Information; Confidentiality

60

Section 10.8

Counterparts; Effectiveness

61

Section 10.9

Survival of Representations and Warranties

61

Section 10.10

Severability

61

Section 10.11

Governing Law; Jurisdiction; Etc.

61

Section 10.12

Waiver of Right to Trial by Jury

62

Section 10.13

Electronic Execution; Electronic Records; Counterparts

63

Section 10.14

USA PATRIOT Act

64

Section 10.15

No Advisory or Fiduciary Relationship

64

Section 10.16

Entire Agreement

64

Section 10.17

No Third Party Rights

65

Section 10.18

Table of Contents and Headings

65

Section 10.19

Public Announcement.

65

Section 10.20

Specific Performance

66

Section 10.21

Limited Recourse; Disposition of Retained Excess Proceeds

66

 

Schedule I

Licensed Products

Schedule 5.9

Brokers’ Fees

Schedule 5.14(k)

Material Contracts – Audits

Schedule 5.16(a)

Organizational Information

Schedule 5.16(b)

Organizational Changes

Schedule 5.19(a)

Patents

Schedule 5.20(c)

Regulatory Authorizations for Tebipenem Pivoxil Hydrobromide

Schedule 9.2

Purchaser Representative’s Office

Exhibit A-1

Bill of Sale – Purchaser Representative

Exhibit A-2

Bill of Sale – Company

Exhibit B

Contribution Agreement

Exhibit C

Equity Contribution Agreement

Exhibit D

Payment Instruction Letter

Exhibit E

Company Account

Exhibit F-1

GSK License Agreement

Exhibit F-2

Meiji License Agreement

 

 


 

ROYALTY AND MILESTONE PAYMENT INTEREST PURCHASE AND SALE AGREEMENT

This ROYALTY AND MILESTONE PAYMENT INTEREST PURCHASE AND SALE AGREEMENT (this “Agreement”) dated as of July 8, 2026 is by and among SPERO SPV, LLC, a Delaware limited liability company (the “Company”), the entities managed by HEALTHCARE ROYALTY MANAGEMENT, LLC listed on the signature pages hereto (the “Purchasers”) and HCR SPERO SPV, LLC, a Delaware limited liability company (the “Purchaser Representative”), solely in its capacity as agent for, and representative of, the Purchasers. Each of the Company and the Purchasers is referred to in this Agreement as a “Party” and collectively as the “Parties”.

W I T N E S S E T H:

WHEREAS, Spero Therapeutics, Inc., a Delaware corporation (together with its permitted successors or assigns, “Parent”), has formed each of Spero Holdings SPV, LLC, a Delaware limited liability company (“Holdings”), and the Company as special purpose vehicles, and upon the Parties’ entry into this Agreement, Parent owns 100% of the Capital Stock of Holdings and Holdings owns 100% of the Capital Stock of the Company.

WHEREAS, the Company holds certain assets and rights relating to the Licensed Products as a result of the Contribution Agreement and the transactions contemplated therein, which transactions were consummated prior to the Parties’ entry into this Agreement.

WHEREAS, as part of a series of transactions (the “Transaction”), Purchasers are also purchasing certain promissory notes (as amended or otherwise modified from time to time, the “Notes”) from the Company, pursuant to the terms and conditions of a Note Purchase and Guaranty Agreement dated as of the Effective Date (as amended or otherwise modified from time to time, the “NPA”), between the Company (referred to as Issuer in the NPA) and Purchasers.

WHEREAS, immediately following the “Payment in Full” of the Notes in accordance with the terms of the NPA, the Transaction will then include the payment to the Purchasers of the Purchased Proceeds, pursuant to the terms and conditions of this Agreement.

WHEREAS, pursuant to the terms and conditions of this Agreement, as of the Effective Date the Company desires to sell, contribute, assign, transfer, convey and grant to each Purchaser, and each Purchaser desires to purchase, acquire and accept from the Company, the Purchased Proceeds in the respective percentages set forth in the definition of Purchased Proceeds herein.

NOW, THEREFORE, in consideration of the premises and the mutual agreements, representations and warranties set forth herein and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, intending to be legally bound, the Parties hereto covenant and agree as follows:

ARTICLE I

DEFINED TERMS AND RULES OF CONSTRUCTION

Section 1.1 Defined Terms. As used in this Agreement, the following terms shall have the meanings set forth below:

Account Control Agreement” means any account control agreement by and among the Company, the applicable Depositary Bank and the Purchaser Representative.

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Affiliate” means, with respect to any Person, any other Person that directly, or indirectly through one or more intermediaries, controls or is controlled by or is under common control with such Person. For the purposes of this Agreement, “control” (including, with correlative meaning, the terms “controlling” and “controlled”) means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such Person, whether through the ownership of voting securities, by contract or otherwise. Without limiting the generality of the foregoing, a Person shall be deemed to be controlled by another Person if such other Person possesses, directly or indirectly, power to vote ten percent (10%) or more of the securities having ordinary voting power for the election of directors, managing general partners or the equivalent.

Agreement” has the meaning set forth in the preamble.

Anti-Terrorism Laws” means any Laws relating to terrorism or money laundering, including without limitation Executive Order No. 13224 (effective September 24, 2001), the USA PATRIOT Act, the Laws comprising or implementing the Bank Secrecy Act, the Trading with the Enemy Act, as amended, and each of the foreign assets control regulations of the United States Treasury Department (31 CFR, Subtitle B, Chapter V, as amended) and any other enabling legislation or executive order relating thereto.

Applicable Law” means, with respect to any Person, all Laws, rules, regulations and orders of Governmental Authorities applicable to such Person or any of its properties or assets.

Back-up Collateral” means the “RPA Back-up Collateral” as defined in the Back-up Security Agreement.

Back-up Collateral Documents” means a collective reference to the Back-up Security Agreement, the Account Control Agreement and such other security documents as may be executed and delivered by the Company pursuant to the terms of Section 6.7.

Back-up Security Agreement” means the Security Agreement, substantially in the form of Exhibit H to the NPA, between the Note Parties (as defined in the NPA) and Purchaser Representative, securing, with respect to this Agreement, the Back-up Collateral in the event of a recharacterization of the sale hereunder as indebtedness.

Bankruptcy Event” means the occurrence of any of the following in respect of a Person: (a) such Person shall generally not, shall be unable to, or an admission in writing by such Person of its inability to, pay its debts as they come due or a general assignment by such Person for the benefit of creditors; (b) the filing of any petition or answer by such Person seeking to adjudicate itself as bankrupt or insolvent, or seeking for itself any liquidation, winding-up, reorganization, arrangement, adjustment, protection, relief or composition of such Person or its debts under any Applicable Law relating to bankruptcy, insolvency, receivership, winding-up, liquidation, reorganization, examination, relief of debtors or other similar Applicable Law now or hereafter in effect, or seeking, consenting to or acquiescing in the entry of an order for relief in any case under any such Applicable Law, or the appointment of or taking possession by a receiver, trustee, custodian, liquidator, examiner, assignee, sequestrator or other similar official for such Person or for any substantial part of its property; (c) corporate or other entity action taken by such Person to authorize any of the actions set forth in clause (a) or clause (b) above; or (d) without the consent or acquiescence of such Person, the commencement of an action seeking entry of an order for relief or approval of a petition for relief or reorganization or any other petition seeking any reorganization, arrangement, composition, readjustment, liquidation, dissolution or other similar relief under any present or future bankruptcy, insolvency or similar Applicable Law, or the filing of any such petition against such Person, or, without the consent or acquiescence of such Person, the commencement of an action seeking

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entry of an order appointing a trustee, custodian, receiver or liquidator of such Person or of all or any substantial part of the property of such Person, in each case where such petition or order shall remain unstayed or shall not have been stayed or dismissed within [***] from entry thereof.

Bill of Sale – Company” means the Bill of Sale and Assumption Agreement, dated as of the Effective Date, delivered by the Parent to Holdings (and by Holdings to the Company) under the Contribution Agreement with respect to the Transferred Assets, substantially in the form of Exhibit A-2.

Bill of Sale – Purchaser Representative” means the Bill of Sale and Assumption Agreement, dated as of the Effective Date, delivered by the Company to the Purchaser Representative under this Agreement with respect to the Purchased Proceeds and proceeds thereof, substantially in the form of Exhibit A-1.

Bills of Sale” means, collectively, the Bill of Sale – Purchaser Representative and the Bill of Sale – Company.

Blocked Account” means any Deposit Account established and maintained in the United States at the Depositary Bank and pledged as Back-up Collateral pursuant to the terms of the Back-up Security Agreement and subject to an Account Control Agreement that is subject to: (a) prior to the New Depositary Bank Trigger Date, the “control” of Purchaser Representative within the meaning of Section 9-104 of the UCC and (b) from and after the New Depositary Bank Trigger Date, the full dominion and “control” of the Purchaser Representative within the meaning of Section 9-104 of the UCC.

Business Day” means any day other than a Saturday, Sunday or other day on which commercial banks are authorized to close under the Laws of, or are in fact closed in, the state where the Purchaser Representative’s Office is located.

Capital Stock” of any Person means any and all shares, interests, memberships, ownership interest units, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such Person, including any preferred stock, and including, if such Person is a partnership, partnership interests (whether general or limited) and any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of property of, such partnership, and including, if such Person is a limited liability company, membership interests and any other interest or participation that confers on a Person the right to receive an interest in the profits and losses of, or distributions of property of, such limited liability company, in each case whether outstanding on the date hereof or issued after the date hereof, but excluding any Indebtedness convertible into or exchangeable for such equity.

CDA” means the Confidentiality Agreement, dated as of [***], by and between HealthCare Royalty Management, LLC and the Parent, as amended.

Change of Control” has the meaning set forth in the NPA.

Closing” has the meaning set forth in Section 4.1.

Code” means the U.S. Internal Revenue Code of 1986, as amended from time to time.

Collection Account” means (a) the Blocked Account established and maintained at any Depositary Bank and (b) any successor or replacement Collection Account established in accordance with Section 3.1(b) and subject to a replacement Account Control Agreement in form and substance satisfactory to Purchaser Representative, in each case, solely for the purpose of receiving remittance of the GSK

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Proceeds and proceeds therefrom and disbursement thereof as provided herein, and any successor Collection Account entered into in accordance with Section 3.1(a).

Commercialization” means, on a country-by-country basis any and all activities with respect to the distribution, marketing, detailing, promotion, selling and securing of reimbursement of the Licensed Products in the Territory, which shall include, as applicable, post-marketing approval studies, post-launch marketing, promoting, detailing, marketing research, distributing, customer service, selling the Licensed Products, importing, exporting or transporting the Licensed Products for sale, and regulatory compliance with respect to the foregoing.

Commercially Reasonable and Diligent Efforts” means, [***]. For the avoidance of doubt, “Commercially Reasonable and Diligent Efforts” shall be determined [***].

Communication” means this Agreement, any Transaction Document and any document, amendment, approval, consent, information, notice, certificate, request, statement, disclosure or authorization related to any Transaction Document.

Company” has the meaning set forth in the preamble.

Company Account” has the meaning set forth in Section 3.2(g).

Company Indemnified Parties” has the meaning set forth in Section 10.4(b)(ii).

Confidential Information” means any and all technical and non-technical non-public information provided by either Party to the other (including, without limitation, any Communication or other information provided pursuant to Section 6.2), either directly or indirectly, and including any material prepared on the basis of such information, whether in graphic, written, electronic or oral form, and marked or identified at the time of disclosure as confidential, or which by its context would reasonably be deemed to be confidential, including without limitation information relating to a Party’s revenues, net sales, costs, technology, products and services, and any business, financial or customer information relating to a Party. Confidential Information shall not include any information that a Party can demonstrate was: (i) known to the general public at the time of its disclosure to such Party or its Affiliates, or thereafter became generally known to the general public, other than as a result of actions or omissions of the receiving Party, its Affiliates, or anyone to whom the receiving Party or its Affiliates disclosed such portion; (ii) known by the receiving Party or its Affiliates prior to the date of disclosure by the disclosing Party; (iii) disclosed to the receiving Party or its Affiliates on an unrestricted basis from a source unrelated to the disclosing Party and not known by the receiving Party or its Affiliates (after due inquiry) to be under a duty of confidentiality to the disclosing Party; or (iv) independently developed by the receiving Party or its Affiliates by personnel that did not use the Confidential Information of both Parties. For clarity, this Agreement shall supersede the CDA and the CDA shall cease to be of any force and effect following the execution of this Agreement; provided, however, that all information falling within the definition of “Confidential Information” set forth in the CDA shall also be deemed Confidential Information disclosed pursuant to this Agreement, and the use and disclosure of such Confidential Information following the date of this Agreement shall be subject to the provisions of Section 10.7.

Contract” means any contract, agreement, commitment, government bid, instrument, license, sublicense, subcontract, real or personal property lease or sublease, letters of intent, memorandum of understanding, offer letter, note, indenture, mortgage, bond, letter of credit, guarantee, purchase order,

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or other legally binding business arrangement, whether written or oral, together with any amendments, restatements, supplements or other modifications thereto.

Contractual Obligation” means, as to any Person, any obligation of such Person arising under any Contract.

Contribution” means the sale, transfer, assignment, contribution and conveyance by the Parent of the Transferred Assets to the Company pursuant to the Contribution Agreement.

Contribution Agreement” means the Purchase and Sale, Contribution and Servicing Agreement, dated as of the Effective Date, among the Parent, Holdings and the Company, in the form of Exhibit B attached hereto.

Debtor Relief Laws” has the meaning given to “Bankruptcy Law” in the NPA.

Deposit Account” means a “deposit account” (as defined in Article 9 of the Uniform Commercial Code), investment account, bank account or other account in which funds are held or invested to or for the credit or account of the Company.

Depositary Bank” means [***], or such other bank or financial institution approved by the Purchaser Representative and the Company, including any successor Depositary Bank appointed pursuant to Section 3.1(b).

Designated Jurisdiction” means any country or territory to the extent that such country or territory is, or whose government is, the subject or target of any Sanctions broadly restricting or prohibiting dealings with such country, territory or government.

Disputes” has the meaning set forth in Section 5.19(k).

Disqualified Capital Stock” of any Person means any class of Capital Stock of such Person that, by its terms, or by the terms of any related agreement or of any security into which it is convertible, puttable or exchangeable or requires the payment of dividends or distributions in cash, is, or upon the happening of any event or the passage of time would be, required to be redeemed by such Person, whether or not at the option of the holder thereof, or matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, in whole or in part, on or prior to the date which is [***] after the Scheduled Maturity Date (as defined in the NPA).

Dollar” or the sign “$” means United States dollars.

Drug Application” means an application for Regulatory Authorization to market, sell and distribute a drug or product in a country or region, including (a) a New Drug Application, (b) any corresponding foreign application in any country or jurisdiction in the world, including, with respect to the EEA, an application for a Marketing Authorization filed with the EMA, the MHRA or with the applicable Regulatory Agency of a country in the European Union with respect to the mutual recognition or any other national approval procedure, and (c) all supplements, amendments, variations, extensions and renewals thereof that may be filed with respect to the foregoing.

EEA” means the European Economic Area and the United Kingdom.

Effective Date” has the meaning set forth in Section 4.1.

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Electronic Copy” has the meaning set forth in Section 10.13.

Electronic Record” and “Electronic Signature” have the meanings assigned to them, respectively, by 15 USC §7006, as it may be amended from time to time.

EMA” means the European Medicines Agency or any successor agency or authority thereto.

Equity Contribution Agreement” means the Equity Contribution Agreement, dated as of the Effective Date, between Parent and Holdings, in the form of Exhibit C attached hereto.

Equity Interests” means, with respect to any Person, all of the shares of Capital Stock of (or other ownership or profit interests in) such Person, all of the warrants, options or other rights for the purchase or acquisition from such Person of shares of Capital Stock of (or other ownership or profit interests in) such Person, all of the securities convertible into or exchangeable for shares of Capital Stock of (or other ownership or profit interests in) such Person or warrants, rights or options for the purchase or acquisition from such Person of such shares (or such other interests), and all of the other ownership or profit interests in such Person (including partnership, member, membership or trust interests therein and any stock appreciation rights or similar instruments), whether voting or nonvoting, and whether or not such shares, warrants, options, rights or other interests are outstanding on any date of determination.

Excluded Liabilities and Obligations” has the meaning set forth in Section 2.3.

Excluded Taxes” means any of the following Taxes imposed on or with respect to a payment to a Recipient or required to be withheld or deducted in respect of a payment to a Recipient, (a) Taxes imposed on or measured by net income (however denominated), franchise taxes, and branch profits taxes, in each case, (i) that are imposed as a result of such Purchaser being organized under the laws of, or having its principal office located in, the jurisdiction imposing such Tax or (ii) that are imposed as a result of another present or former connection between such Purchaser and the jurisdiction imposing such Tax (other than any connections arising from such Purchaser having executed, delivered, become a party to, performed its obligations under, received payments under, received or perfected a security interest under, engaged in any other transaction pursuant to or enforced any Transaction Document, or having sold or assigned any interest in its interests under any Transaction Document), (b) Taxes attributable to such Purchaser’s failure to provide any properly completed and executed documentation reasonably requested by the Company under Section 3.4(e) of this Agreement that such Purchaser is legally eligible to provide and that will permit payments to be made to any Recipient without withholding or at a reduced rate of withholding and (c) any Taxes imposed by the United States, any state thereof or the District of Columbia.

FCPA” has the meaning set forth in Section 5.17(b).

FDA” means the U.S. Food and Drug Administration or any successor agency or authority thereto.

Federal Funds Rate” means, for any day, the rate per annum equal to the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System on such day, as published by the Federal Reserve Bank of New York on the Business Day next succeeding such day; provided, that, if such day is not a Business Day, the Federal Funds Rate for such day shall be such rate on such transactions on the next preceding Business Day as so published on the next succeeding Business Day.

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First Payment Date” means the first date on which GSK deposits to the Collection Account any Purchased Proceeds under this Agreement.

Foreign Purchaser” means any Purchaser that is not a U.S. Person.

Fundamental Representations” means the representations and warranties contained in Section 5.1 (Existence, Qualification and Power; Subsidiaries), Section 5.2 (Authorization; No Contravention), Section 5.3 (Execution and Delivery; Binding Effect), Section 5.4 (No Liens; Title to Purchased Proceeds), Section 5.5 (Governmental and Third Party Authorizations), Section 5.9 (No Brokers’ Fees), Section 5.12 (Taxes), Section 5.13 (Ownership of the Company), Section 5.15 (Perfection of Security Interests in the Back-up Collateral), Section 5.19 (Intellectual Property Matters), and Section 5.20 (Compliance of Licensed Products).

GAAP” means generally accepted accounting principles in the United States set forth in the opinions and pronouncements of the Accounting Principles Board and the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board, consistently applied and as in effect from time to time.

Governmental Authority” means any national, supranational, federal, state, county, provincial, local, municipal or other government or political subdivision thereof (including any Regulatory Agency), whether domestic or foreign, and any agency, authority, commission, ministry, instrumentality, regulatory body, court, tribunal, arbitrator, central bank or other Person exercising executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or pertaining to any such government (including any supra-national bodies such as the European Union or the European Central Bank and including each Patent Office, the FDA, the EMA, the MHRA and any other government authority in any jurisdiction).

Governmental Licenses” means all authorizations issuing from a Governmental Authority, including the FDA, based upon or as a result of applications to and requests for approval from a Governmental Authority for the right to Commercialize a Licensed Product, which are owned by or licensed to the Company, acquired by the Company via assignment, purchase or otherwise or that the Company is authorized or granted rights under or to.

GSK” means GlaxoSmithKline Intellectual Property (No. 3) Limited, a company registered under the laws of England and Wales with offices at 980 Great West Road, Brentford, Middlesex TW8 9GS England and a party to the GSK License Agreement. If the GSK License Agreement is assigned or otherwise transferred by GSK to another Person in accordance with this Agreement, references to GSK hereunder shall be deemed to be references to such other Person.

GSK Development Payment” means the amounts owed by Parent to GSK pursuant to Section 4.1(a)(ii) of the GSK License Agreement with respect to GSK’s [***] related to the development of Tebipenem Pivoxil Hydrobromide, which amounts are estimated to be USD $[***].

GSK Excess Proceeds” means the excess, if any, of (i) each payment of GSK Proceeds to which the Company is at any time entitled over (ii) the associated Meiji Royalty Payments, if any, that the Company or any of its Affiliates is obligated to make but only to the extent that such excess is not required to be paid by the Company to the Purchasers in respect of the Notes.

GSK License Agreement” means that certain Exclusive License Agreement, dated as of September 21, 2022, by and between the Company (as assignee of the Parent pursuant to the Contribution Agreement) and GSK, as amended by that certain Amendment 1 to Exclusive License Agreement, dated as

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of July 4, 2023, as further amended by the Waiver and Release Agreement, dated as of September 27, 2023, as further amended by that certain Amendment 2 to Exclusive License Agreement, dated as of December 20, 2023, as further amended by that certain Data Transfer Agreement, dated as of March 7, 2024, as further amended by that certain Amendment 3 to Exclusive License Agreement, dated as of March 4, 2024, as further amended by that certain Side Letter, dated as of May 10, 2024, as further amended by that certain Amendment 4 to Exclusive License Agreement, dated as of October 28, 2024, and as may be further amended from time to time in accordance with Section 6.5 of this Agreement.

GSK Payment Notice” means the following notices:

(a) notice from GSK under Section 6.3 of the GSK License Agreement of the achievement of a Commercial Milestone Event (as defined in the GSK License Agreement);

(b) notice from GSK under Section 6.4 of the GSK License Agreement of the achievement of a Sales Milestone Event (as defined in the GSK License Agreement); or

(c) any other notice from GSK notifying the Company that payments constituting the Royalty Payments are due, payable or paid under the GSK License Agreement.

GSK Proceeds” means all of the Company’s (as assignee of the Parent pursuant to the Contribution Agreement) right, title and interest in and to the following, excluding, in each case, the Excluded GSK Proceeds (as defined in the NPA):

(a) all amounts due, payable or paid to the Company under Section 6.3 of the GSK License Agreement;

(b) all amounts due, payable or paid to the Company under Section 6.4 of the GSK License Agreement;

(c) all Royalty Payments;

(d) all amounts due, payable or paid to the Company in respect of any provisions concerning underpayment of or in lieu of the amounts set forth in (a) through (c) above;

(e) all interest that becomes payable in respect of the late payment of any of the amounts referred to in the foregoing clauses (a) through (d) pursuant to Section 6.7(c) of the GSK License Agreement;

(f) all accounts (as defined under the UCC) evidencing the rights to the payments and amounts described in this definition; and

(g) all proceeds (as defined under the UCC) of any of the foregoing.

All of the foregoing amounts shall be determined after giving effect to (i) all GSK Royalty Reductions that are applicable to such amounts, (ii) any amounts withheld or additional amounts paid pursuant to Section 6.9 of the GSK License Agreement, and (iii) subject to Section 3.4 of this Agreement, deductions for withholding or similar taxes, in each case excluding any Non-Permitted Set-Offs. For the avoidance of doubt, GSK Proceeds shall include all amounts due, payable or paid to the Company or any of its Affiliates by one or more licensees or sublicensees under any New Arrangement to the extent attributed to the Licensed Products.

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GSK Products” has the meaning given to the term “Product” in Section 1.134 of the GSK License Agreement.

GSK Royalty Reductions” means, with respect to the GSK License Agreement, any adjustments, modifications, credits, offsets, reductions or deductions to Royalty Payments made under Section 6.5 of the GSK License Agreement pursuant to Section 6.5(c), Section 6.5(d) or Section 6.5(e) of the GSK License Agreement, subject in all cases to the limitation imposed by Section 6.5(f) of the GSK License Agreement.

Guarantee” means, as to any Person: (a) any obligation, contingent or otherwise, of such Person guaranteeing or having the economic effect of guaranteeing any Indebtedness or other obligation payable or performable by another Person (the “Primary Obligor”) in any manner, whether directly or indirectly, and including any obligation of such Person, direct or indirect (i) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness or other obligation, (ii) to purchase or lease property, securities or services for the purpose of assuring the obligee in respect of such Indebtedness or other obligation of the payment or performance of such Indebtedness or other obligation, (iii) to maintain working capital, equity capital or any other financial statement condition or liquidity or level of income or cash flow of the Primary Obligor so as to enable the Primary Obligor to pay such Indebtedness or other obligation, or (iv) entered into for the purpose of assuring in any other manner the obligee in respect of such Indebtedness or other obligation of the payment or performance thereof or to protect such obligee against loss in respect thereof (in whole or in part); or (b) any Lien on any assets of such Person securing any Indebtedness or other obligation of any other Person, whether or not such Indebtedness or other obligation is assumed by such Person. The amount of any Guarantee shall be deemed to be an amount equal to the stated or determinable amount of the related primary obligation, or portion thereof, in respect of which such Guarantee is made or, if not stated or determinable, the maximum reasonably anticipated liability in respect thereof as determined by the guaranteeing Person in good faith. The term “Guarantee” as a verb has a corresponding meaning.

HRBR Purchaser” means HRBR 2025-2, LLC, a Delaware limited liability company, as a Purchaser hereunder.

HCRX Purchaser” means HCRX Investments HoldCo, L.P., a Delaware limited partnership, as a Purchaser hereunder.

Healthcare Laws” means all Laws relating to healthcare regulatory matters, including the Federal Food, Drug, and Cosmetic Act, the Public Health Service Act, the Anti-Kickback Statute (42 U.S.C. § 1320a-7b), the Federal False Claims Act (31 U.S.C. §§ 3729-3733), the Foreign Corrupt Practices Act of 1977, HIPAA, and all comparable state and foreign Laws.

Holdings” has the meaning set forth in the recitals hereto.

Indebtedness” means, with respect to any Person, all items which, in accordance with GAAP, would be included in determining total liabilities as shown on the liability side of the balance sheet of such Person as of the date as of which such Indebtedness is to be determined, including (a) indebtedness pursuant to an agreement or instrument involving or evidencing money borrowed, the advance of credit, a conditional sale or a transfer with recourse or with an obligation to repurchase (but excluding trade credit and accounts payable in the ordinary course of business), (b) any capitalized lease, (c) any obligations with respect to Disqualified Capital Stock, (d) indebtedness of a Third Party secured by (or for which the holder of such indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien on assets owned or acquired by such Person, whether or not the indebtedness secured thereby has been assumed (but only to the extent of such Lien), (e) net amounts owing pursuant to an interest rate protection agreement,

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foreign currency exchange agreement or other hedging arrangement, (f) a reimbursement obligation under a letter of credit issued for the account of such Person, or (g) all Guarantees. For the avoidance of doubt, the Indebtedness of any Person shall include the Indebtedness of any other entity to the extent such Person is directly liable therefor as a result of such Person’s ownership interest in or other relationship with such entity, except to the extent the terms of such Indebtedness provide that such Person is not liable therefor.

Indemnified Party” has the meaning set forth in Section 10.4(c)(i).

Indemnified Taxes” means (a) all Taxes, other than any Excluded Taxes, imposed on or with respect to any payment (i) made by or on behalf of any obligation of the Company under any Transaction Document, or (ii) made by or on behalf of GSK in respect of any GSK Proceeds or any underlying royalty payable by GSK, and (b) to the extent not otherwise described in clause (a), Other Taxes.

Indemnifying Party” has the meaning set forth in Section 10.4(c)(i).

Information” has the meaning set forth in Section 10.7.

Infringement” and “Infringes” mean the infringement, misappropriation, or other violation of any Patents, copyrights, Trademarks, Know-How, Trade Secrets, confidential information, and/or other Intellectual Property.

In-License” means any license, settlement agreement or other Contract or arrangement between the Company and any Third Party pursuant to which the Company obtains a license or a covenant not to sue or similar grant of rights to Intellectual Property of such Third Party that is necessary for Commercialization activities with respect to the Licensed Products.

Intellectual Property” means all intellectual property covering the sale, manufacture, use, importation or marketing of any Licensed Product in such Licensed Product’s Territory, including but not limited to patents, patent applications, trademarks, trademark applications and Know-How, necessary for the sale, manufacture, use, importation or marketing of such Licensed Product that is owned, licensed in or controlled (and if controlled, only to the extent of control) by the Company (after giving effect to the contribution under the Contribution Agreement) as of the Effective Date and during term of this Agreement.

Intercreditor Agreement” means an intercreditor agreement, among the Purchaser Representative, for the benefit of the Purchasers, the Company and the Monetization Counterparties (or the representatives thereof), in a form reasonably satisfactory to the Purchaser Representative and giving effect to the applicable Monetization Pro Rata Share of each Monetization Counterparty with respect to any shared Back-up Collateral and proceeds thereof; provided that no intercreditor agreement shall be required if the Monetization Counterparty does not take a pledge of the Company’s Equity Interests or a Lien on any asset of the Company, including the Collection Account, other than the Retained Excess Proceeds to which such Monetization Counterparty has rights.

IP Rights” means, collectively, all Drug Applications, all Governmental Licenses, all applications and requests for Governmental Licenses, all Other Intellectual Property, all Patents, all Patent Licenses, all Trademarks, all Trade Secrets, and all Regulatory Authorizations, and all other Intellectual Property, in each case, which are (a) owned or controlled by, issued or licensed to, licensed by, or hereafter acquired or licensed to or by, the Company or any Affiliate, including (but not limited to) the items listed on Schedule 5.19(a) and (b) used in, relating to or necessary for the Commercialization of the Licensed Products in the Territory, including, for the avoidance of doubt, all Intellectual Property licensed to GSK

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under the GSK License Agreement to the extent used in, relating to or necessary for Commercialization of the Licensed Products in the Territory.

IRS” means the United States Internal Revenue Service.

Judgment” means any judgment, order, writ, injunction, citation, award or decree of any nature.

Know-How” means all non-public information, results and data of any type whatsoever, in any tangible or intangible form (and whether or not patentable), including databases, practices, methods, techniques, specifications, formulations, formulae, knowledge, skill, experience, data and results (including pharmacological, medicinal chemistry, biological, chemical, biochemical, toxicological and clinical study data and results), analytical and quality control data, stability data, studies and procedures, and manufacturing process and development information, results and data.

Knowledge” means, with respect to the Company, the actual knowledge after due inquiry of the Responsible Officers of both the Company and Parent; provided that “due inquiry” shall not [***].

Laws” means, collectively, all international, foreign, federal, state and local statutes, treaties, rules, guidelines, regulations, ordinances, codes and administrative or judicial precedents or authorities, including the interpretation or administration thereof by any Governmental Authority charged with the enforcement, interpretation or administration thereof, and all applicable administrative orders, directed duties, requests, licenses, authorizations and Permits of, and agreements with, any Governmental Authority, in each case, whether or not, having the force of law.

Licensed Patents” means all Patents that are licensed or sublicensed to the Company which are used in or necessary for the Commercialization of the Licensed Products in the Territory.

Licensed Products” means (a) the GSK Products, and (b) any “licensed products” (howsoever denominated) under any New Arrangement, including any such product in development or which may be developed by GSK and subject to the GSK License Agreement, including those products set forth on Schedule I (as supplemented from time to time in accordance with the terms of this Agreement); provided, that, if the Company shall fail to comply with its obligations under this Agreement to give notice to the Purchaser Representative and supplement Schedule I prior to GSK Commercializing any new Licensed Product, any such improperly undisclosed Licensed Product shall be deemed to be included in this definition. For clarity, references in this Agreement to “a” Licensed Product or to “the” Licensed Product(s) refer to any Licensed Product(s) under or with respect to the GSK License Agreement or New Arrangement.

Lien” means any mortgage, pledge, hypothecation, assignment, deposit arrangement, encumbrance, lien (statutory or other), charge, or preference, priority or other security interest or preferential arrangement of any kind or nature whatsoever (including any conditional sale or other title retention agreement, any easement, right of way or other encumbrance on title to real property, and any financing lease having substantially the same economic effect as any of the foregoing).

Loss” means any and all Judgments, damages, losses, claims, costs, liabilities and expenses, including reasonable fees and out-of-pocket expenses of counsel.

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Marketing Authorization” means, with respect to a Licensed Product, the Regulatory Authorization required by Applicable Law to sell such Licensed Product in a country or region, including, to the extent required by Applicable Law for the sale of such Licensed Product, all pricing approvals and government reimbursement approvals.

Material Adverse Effect” means (a) a material adverse change in the business, operations, properties, results of operations or financial condition of the Company, taken as a whole; (b) a material adverse effect on the validity or enforceability of this Agreement and the other Transaction Documents, taken as a whole or any material provision hereof or thereof; (c) a material adverse effect on the ability of the Company to consummate the transactions contemplated by the Transaction Documents, or on the ability of the Company to perform its obligations under the Transaction Documents to which it is a party, in each case, taken as a whole; (d) a material adverse effect on the rights of the Company under the GSK License Agreement or the Meiji License Agreement (with any reduction in the timing, amount or duration of the Purchased Proceeds having such a material adverse effect) or (e) a material adverse effect on the rights or remedies of the Purchasers under the Transaction Documents, taken as a whole.

Material Contract Counterparty” means a counterparty to any Material Contract.

Material Contracts” has the meaning set forth in the NPA.

Meiji” means Meiji Seika Pharma Co., Ltd., a Japanese corporation and a party to the Meiji License Agreement. If the Meiji License Agreement is assigned or otherwise transferred by Meiji to another Person in accordance with this Agreement, the references to Meiji hereunder shall be deemed to be references to such other Person.

Meiji License Agreement” means that certain License Agreement, dated as of June 14, 2017, by and between the Company (as successor to Spero OpCo, Inc. and as assignee of the Parent pursuant to the Contribution Agreement) and Meiji, as supplemented by that certain Addendum to License Agreement, dated as of June 14, 2017, and as amended by that certain Amendment to License Agreement, effective as of July 1, 2024, and as may be further amended from time to time.

Meiji Royalty Payments” means any Royalties (as defined in the Meiji License Agreement) under Section 4.3 of the Meiji License Agreement, to the extent due, payable and paid to Meiji by the Company during the Payment Term.

MHRA” means the United Kingdom’s Medicines and Healthcare products Regulatory Authority.

Monetization Pro Rata Share” means, with respect to any Monetization Counterparty and any Permitted Royalty Monetization, the percentage obtained by dividing (a) the portion of the Retained Excess Proceeds to which such Monetization Counterparty has rights under such Permitted Royalty Monetization by (b) the aggregate GSK Excess Proceeds from which such Retained Excess Proceeds are derived. For the avoidance of doubt, if a Monetization Counterparty has rights to all Retained Excess Proceeds, the Monetization Pro Rata Share of such Monetization Counterparty shall equal the percentage of GSK Excess Proceeds that does not constitute Purchased Proceeds.

New Depositary Bank Trigger Date” means the [***] after the Effective Date, or such later date approved by Purchaser Representative (as defined in the NPA).

New Drug Application” means a New Drug application submitted to the FDA under 21 U.S.C. § 355(b) and all amendments or supplements thereto.

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Non-Permitted Set-Off” means any Set-Off, whether by contract or otherwise, that is exercised by GSK in respect of the GSK Proceeds to the extent affecting Purchased Proceeds, including (a) any amounts owed by the Company to GSK, or (b) any Set-Off taken pursuant to Section 6.6 or Section 11.8 of the GSK License Agreement (in each case, other than a GSK Royalty Reduction or a deduction for withholding or similar taxes pursuant to Section 6.9 of the GSK License Agreement).

Note Documents” has the meaning set forth in the NPA.

Obligations” means (a) all obligations, covenants and duties of the Company arising under this Agreement or any other Transaction Document and the obligations of the Company to reimburse or indemnify the Purchaser Representative and Purchasers for any Losses incurred by the Purchaser Representative or the Purchasers in connection with the enforcement of their rights under this Agreement and (b) all costs and expenses incurred in connection with enforcement and collection of the foregoing, including the fees, charges and disbursements of counsel, in each case, whether direct or indirect (including those acquired by assumption), absolute or contingent, due or to become due, now existing or hereafter arising and including interest and fees that accrue after the commencement by or against the Company of any proceeding under any Debtor Relief Laws naming such Person as the debtor in such proceeding, regardless of whether such interest and fees are allowed claims in such proceeding.

OFAC” means the Office of Foreign Assets Control of the United States Department of the Treasury.

Organization Documents” means, (a) with respect to any corporation, the certificate or articles of incorporation and the bylaws (or equivalent or comparable constitutive documents with respect to any non-U.S. jurisdiction), (b) with respect to any limited liability company, the certificate or articles of formation or organization and operating agreement or limited liability company agreement (or equivalent or comparable documents with respect to any non-U.S. jurisdiction), and (c) with respect to any partnership, joint venture, trust or other form of business entity, the partnership, joint venture or other applicable agreement of formation or organization and any agreement, instrument, filing or notice with respect thereto filed in connection with its formation or organization with the applicable Governmental Authority in the jurisdiction of its formation or organization and, if applicable, any certificate or articles of formation or organization of such entity.

Other Intellectual Property” means all worldwide Intellectual Property rights, industrial property rights, proprietary rights and common-law rights, whether registered or unregistered, which are not otherwise included in Confidential Information, Governmental Licenses, Other IP Agreements, Patents, Patent Licenses, Trademarks, and Trade Secrets, including, without limitation, all rights to and under all new and useful algorithms, concepts, data (including all clinical data relating to a Licensed Product), databases, designs, discoveries, inventions, Know-How, methods, processes, protocols, chemistries, compositions, formulas, show-how, software (other than commercially available, off-the-shelf software that is not assignable in connection with a Change of Control), specifications for Licensed Products, techniques, technology, trade dress and all improvements thereof and thereto, in each of the foregoing cases, which is owned by or licensed to the Company or any Subsidiary or with respect to which the Company or any Subsidiary is authorized or granted rights under or to.

Other IP Agreements” means any agreement, whether written or oral, providing for the grant of any right under any Confidential Information, Governmental License, application or request for a Governmental License, Trademark, Trade Secret and/or any other Intellectual Property right, to the extent that the grant of any such right is not otherwise the subject of a Patent License.

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Other Taxes” means all present or future stamp, court, documentary, intangible, recording, filing or similar taxes that arise from any payment made under, from the execution, delivery, performance, enforcement or registration of, from the receipt or perfection of a security interest under, or otherwise with respect to any of the Transaction Documents, except for Taxes imposed with respect to an assignment that are imposed by any jurisdiction as a result of a present or former connection between the Recipient and the jurisdiction imposing such Tax (other than any connections arising from such Purchaser having executed, delivered, become a party to, performed its obligations under, received payments under, received or perfected a security interest under, engaged in any other transaction pursuant to or enforced any Transaction Document, or having sold or assigned any interest in its interests under or any Transaction Document).

Owned Patents” means all Patents which are owned by the Company and which are used in, relating to or necessary for the Commercialization of the Licensed Products in the Territory.

Parent” has the meaning set forth in the recitals hereto.

Patent License” means any agreement, whether written or oral, providing for the grant of any right under any Patent.

Patent Office” means the respective patent office (foreign or domestic) for any Patents.

Patents” means any and all issued patents and pending patent applications, including without limitation, all provisional applications, substitutions, continuations, continuations-in-part, divisions, and renewals, all letters patent granted thereon, and all patents-of-addition, reissues, reexaminations and extensions or restorations by existing or future extension or restoration mechanisms (including regulatory extensions), claiming or covering the Licensed Products, or composition of matter, formulation, or methods of manufacture or use thereof, that are issued or filed on or after the date of this Agreement, including those identified in Schedule 5.19(a), in each such case, which are owned, co-owned or controlled by, issued or licensed to, licensed by, or hereafter acquired or licensed by, the Company or any Subsidiary.

Payment Certificate” has the meaning set forth in Section 3.2(c).

Payment in Full” has the meaning set forth in the NPA.

Payment Instruction Letter” shall have the meaning set forth in Section 3.1(a).

Payment Objection Notice” has the meaning set forth in Section 3.2(c).

Payment Term” means the time period commencing on Payment in Full under the NPA and expiring on the date upon which (a)(i) the Purchaser Representative has received in full cash payments in respect of all Purchased Proceeds payable during the Royalty Term, or (ii) in the case of a termination of the GSK License Agreement, the later of (x) the date upon which the Purchaser Representative has received in full in accordance with Section 6.6(b) the economic benefit of the payments under a New Arrangement that is equivalent to the Purchased Proceeds, and (y) the date upon which there is no longer a Valid Claim of any Product Patent, and (b) any other Obligations payable by the Company under this Agreement.

Permits” means licenses, certificates, accreditations, Regulatory Authorizations, other authorizations, registrations, permits, consents, clearances and approvals required in connection with the conduct of the Company’s or any Subsidiary’s business or to comply with any Applicable Laws.

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Permitted Royalty Monetization” means any monetization transaction with a Third Party (a “Monetization Counterparty”) involving the sale, transfer, option or collateralization of the Retained Excess Proceeds, including but not limited to a sale, royalty bond or other royalty financing, synthetic royalty or revenue interest transaction, or monetization transaction; provided, that (a) such transaction shall not contain terms relating to collateral security (if any) or subordination (if any), or other material terms (other than economic terms) that, taken as a whole, are less favorable in any material respect to the Company than those terms contained in the Transaction Documents with respect to the Purchased Proceeds; provided, further, that a Monetization Counterparty may be granted collateral security under the Back-Up Security Agreement in (i) a percentage of the Pledged Capital Stock (as defined in the Back-up Security Agreement) equal to such Monetization Counterparty’s Monetization Pro Rata Share, not to exceed thirty-five percent (35%), and (ii) the other Back-up Collateral (other than (x) the portion of the Pledged Capital Stock not pledged to such Monetization Counterparty pursuant to the foregoing clause (i) and (y) the Purchased Proceeds and proceeds of the foregoing) in accordance with such Monetization Counterparty’s Monetization Pro Rata Share, which collateral security shall rank pari passu with the collateral security in such Back-up Collateral granted to the Purchaser Representative, for the benefit of the Purchasers, in the Back-Up Security Agreement, (b) after giving effect to such transaction, no Material Adverse Effect shall have occurred or could reasonably be expected to occur as a result thereof, (c) an Intercreditor Agreement is executed in connection therewith, and (d) the GSK Proceeds continue to be paid in full to the Collection Account and distributed in accordance with finalized Payment Certificates, and the Company and the Monetization Counterparties (or their representatives) have entered into any Account Control Agreement or other paying agent agreement necessary to enable the foregoing.

Person” means any natural person, firm, corporation, limited liability company, partnership, joint venture, association, joint stock company, trust, unincorporated organization, joint venture, association, company, partnership, Governmental Authority or any other legal entity, including public bodies, whether acting in an individual, fiduciary or other capacity.

Product Development and Commercialization Activities” means, on a country-by-country basis, with respect to any Licensed Product, any combination of research, development, Commercialization, or like activities the purpose of which is to develop or commercialize such Licensed Product.

Product Patents” means, collectively, all of the Owned Patents and all of the Licensed Patents and, individually, each such Patent.

Purchase Price” has the meaning set forth in Section 2.2.

Purchased Proceeds” means, on any date during the Payment Term, (a) in the case of HRBR Purchaser, [***]% of the GSK Excess Proceeds and (b) in the case of HCRX Purchaser, [***]% of the GSK Excess Proceeds (such percentages in clauses (a) and (b) equaling, in the aggregate, 65.00% of the GSK Excess Proceeds).

Purchaser” or “Purchasers” means the Persons identified as a “Purchaser” on the signature pages hereto and their successors and assigns.

Purchaser Indemnified Parties” has the meaning set forth in Section 10.4(b)(i).

Purchaser Representative” has the meaning set forth in the preamble.

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Purchaser Representative’s Account” means such account of Purchaser Representative maintained at such banking institution as Purchaser Representative may specify in its discretion from time to time in writing to the Company at least [***] prior to any date on which payments are to be made to any Purchaser pursuant to this Agreement.

Purchaser Representative’s Office” means the Purchaser Representative’s address as set forth on Schedule 9.2 or such other address or account as the Purchaser Representative may from time to time notify the Company and the Purchasers.

Recipient” means the Purchaser Representative, any Purchaser, and any other recipient of any payment by or on account of any obligation of the Company under any Transaction Document.

Regulatory Agency” means a Governmental Authority with responsibility for the regulation of the research, development, marketing or sale of drugs or pharmaceuticals in any jurisdiction, including FDA and EMA.

Regulatory Authorizations” means all approvals, clearances, notifications, authorizations, orders, exemptions, registrations, designations, certifications, licenses and Permits granted by, submitted to or filed with any Regulatory Agencies, all Marketing Authorizations with respect to the Licensed Products and all orphan drug designations.

Related Parties” means, with respect to any Person, such Person’s Affiliates and the partners, directors, officers, employees, agents, trustees, administrators, managers, advisors, counsel, sub-advisors and representatives of such Person and of such Person’s Affiliates.

Responsible Officer” means all of the following: (i) the Chief Executive Officer, Chief Financial Officer, Treasurer, Chief Operating Officer, any Senior Vice President and Secretary of the Company; and (ii) the Chief Executive Officer, Chief Financial Officer, Treasurer, Chief Operating Officer, any Senior Vice President and Secretary of Holdings as well as of Parent and, in each case of clauses (i) and (ii), any other Person performing the roles customary for such title or succeeding to the roles of the foregoing officers.

Retained Excess Proceeds” means all GSK Excess Proceeds that are not Purchased Proceeds.

Retained Proceeds” means all GSK Proceeds that are not Purchased Proceeds.

Royalty Payments” means all amounts due, payable or paid to the Company (as assignee of the Parent pursuant to the Contribution Agreement) under Section 6.5 of the GSK License Agreement (for clarity, after giving effect to all GSK Royalty Reductions and deductions for withholding or similar taxes pursuant to Section 6.9 of the GSK License Agreement applicable thereto, but excluding any Non-Permitted Set-Off), including all such amounts due, paid or payable on deemed Net Sales (as defined in the GSK License Agreement) as set forth in Section 7.3(d) of the GSK License Agreement.

Royalty Reduction” has the meaning set forth in Section 5.14(m).

Royalty Reports” means “Royalty Report” as defined in Section 6.5(b) of the GSK License Agreement.

Royalty Term” means “Royalty Term” as defined in Section 1.149 of the GSK License Agreement in effect as of the date of this Agreement.

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Sanction(s)” means any and all economic or financial sanctions, sectoral sanctions, secondary sanctions, trade embargoes and Anti-Terrorism Laws imposed, administered or enforced from time to time by (a) the U.S. government, including those administered by OFAC, the U.S. Department of State, or the U.S. Department of Commerce, (b) the United Nations Security Council, (c) the European Union, (d) His Majesty’s Treasury of the United Kingdom or (e) any other relevant sanctions authority.

SEC” means the Securities and Exchange Commission, or any Governmental Authority succeeding to any of its principal functions.

Secured Party” means the “RPA Secured Party” as defined in the Back-up Security Agreement.

Servicer” has the meaning set forth in the Contribution Agreement.

Set-Off” means any set-off, off-set, reduction or similar deduction.

Solvent” or “Solvency” means, with respect to any Person as of a particular date, that on such date (a) such Person is able to pay its debts and other liabilities, contingent obligations and other commitments as they mature in the ordinary course of business, (b) such Person does not intend to, and does not believe that it will, incur debts or liabilities beyond such Person’s ability to pay as such debts and liabilities mature in their ordinary course, (c) such Person is not engaged in a business or a transaction, and is not about to engage in a business or a transaction, for which such Person’s property would constitute unreasonably small capital after giving due consideration to the prevailing practice in the industry in which such Person is engaged or is to engage, (d) the fair value of the property of such Person is greater than the total amount of liabilities, including, without limitation, contingent liabilities, of such Person and (e) the present fair salable value of the assets of such Person is not less than the amount that will be required to pay the probable liability of such Person on its debts as they become absolute and matured. In computing the amount of contingent liabilities at any time, it is intended that such liabilities will be computed at the amount which, in light of all the facts and circumstances existing at such time, represents the amount that can reasonably be expected to become an actual or matured liability.

Subsidiary” means, with respect to any Person, at any time, any entity of which more than fifty percent (50%) of the outstanding Voting Stock or other equity interest entitled ordinarily to vote in the election of the directors or other governing body (however designated) is at the time beneficially owned or controlled directly or indirectly by such Person, by one or more such entities or by such Person and one or more such entities.

Taxes” means any present or future income, excise, stamp, documentary, property or franchise taxes and Other Taxes, fees, duties, levies, imposts, assessments, deductions, withholdings or other similar charges of any nature whatsoever, including any related interest, additions to tax and penalties thereon, imposed by any taxing authority.

Tebipenem Pivoxil Hydrobromide” means the compound described on Schedule I and any pharmaceutical or biological composition containing tebipenem pivoxil hydrobromide, including any modifications or improvements thereto and any other product that directly competes with or replaces Tebipenem Pivoxil Hydrobromide that may be developed or Commercialized by the Company, including any products or product candidates that are being developed by the Company as of the date of this Agreement.

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Territory” means “GSK Territory” as defined in Section 1.87 of the GSK License Agreement (i.e., worldwide, excluding the Excluded Territory (as defined in the GSK License Agreement), subject to adjustment pursuant to Section 2.11(c) of the GSK License Agreement).

Third Party” means any Person other than the Company or its Affiliates.

Third Party Claim” has the meaning set forth in Section 10.4(c)(i).

Trade Secrets” means any data or information that is not commonly known by or available to the public, and which (a) derives economic value, actual or potential, from not being generally known to and not being readily ascertainable by proper means by other Persons who can obtain economic value from its disclosure or use, and (b) is the subject of efforts that are reasonable under the circumstance to maintain its secrecy.

Trademarks” means any statutory or common law trademark, service mark, trade name, logo, symbol, trade dress, domain name, corporate name or other indicator of source or origin or identifies the goods and services of one provider from another, and all applications and registrations therefor, together with all of the goodwill associated therewith, now existing or hereafter adopted or acquired, all registrations and recordings thereof, and all applications to register in connection therewith, under the Laws of the United States, any state thereof or any other country or any political subdivision thereof, or otherwise, for the full term and all renewals thereof.

Transaction Documents” means this Agreement, the Note Documents, each Back-up Collateral Document, the Bills of Sale, the Contribution Agreement, the Equity Contribution Agreement and the Payment Instruction Letter.

Transferred Assets” has the meaning set forth in the Contribution Agreement.

U.S.” and “United States” mean the United States of America.

U.S. Person” means any “United States Person” as defined in Section 7701(a)(30) of the Code.

Uniform Commercial Code” means the Uniform Commercial Code as in effect from time to time in New York; provided, that, if, with respect to any financing statement or by reason of any provisions of Applicable Law, the perfection or the effect of perfection or non-perfection of the security interest in the Back-up Collateral or any portion thereof granted pursuant to the Back-up Security Agreement is governed by the Uniform Commercial Code as in effect in a jurisdiction of the United States other than New York, then “Uniform Commercial Code” means the Uniform Commercial Code as in effect from time to time in such other jurisdiction for purposes of the provisions of this Agreement and any financing statement relating to such perfection or effect of perfection or non-perfection.

Valid Claim” means a claim of: (a) a granted Patent that: (i) has not expired; (ii) has not been revoked nor held invalid or unenforceable by an administrative agency, court or other government agency of competent jurisdiction in a final and non-appealable decision (or a decision un-appealed within the time limit allowed for appeal) nor admitted to be invalid or unenforceable through reissue, re-examination, or disclaimer or otherwise; (iii) has not been abandoned; and (iv) has not been lost through an interference proceeding, inter partes review, ex partes re-examination or similar proceeding; or (b) a pending patent application that has not been finally rejected by a patent office or other governmental agency of competent jurisdiction in an unappealable decision or a decision that is un-appealed within the time allowed for appeal.

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Voting Stock” means, with respect to any Person, Equity Interests issued by such Person the holders of which are ordinarily, in the absence of contingencies, entitled to vote for the election of directors (or persons performing similar functions) of such Person, even though the right so to vote has been suspended by the happening of such a contingency.

Withholding Agent” means the Company, GSK and any other Person that withholds or deducts amounts in respect of (a) any obligation of the Company under any Transaction Document or (b) the GSK Proceeds.

Section 1.2 Other Interpretive Provisions. With reference to this Agreement and each other Transaction Document, unless otherwise specified herein or in such other Transaction Document:

(a) An accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP. The definitions of terms shall apply equally to the singular and plural forms of the terms defined. Whenever the context may require, any pronoun shall include the corresponding masculine, feminine and neuter forms. The words “include,” “includes” and “including” shall be deemed to be followed by the words “without limitation.” Unless otherwise specified, (i) any definition of or reference to any agreement or other document includes references to such agreement or other document as from time to time amended, restated, reformed, supplemented or otherwise modified in accordance with the terms thereof (subject to any restrictions on such amendments, restatements, reformations, supplements or modifications set forth herein or in any of the other Transaction Document) and includes any annexes exhibits and schedules attached thereto, (ii) any reference herein to any Person shall be construed to include such Person’s successors and permitted assigns (subject to any restrictions on assignment, transfer or delegation set forth herein or in any of the other Transaction Documents), and any reference to a Person in a particular capacity excludes such Person in other capacities, (iii) the words “hereto”, “herein,” “hereof” and “hereunder,” and similar terms when used in any Transaction Document, shall refer to such Transaction Document as a whole and not to any particular provision thereof, (iv) all references in any Transaction Document to Articles, Sections, Exhibits and Schedules shall be construed to refer to Articles and Sections of, and Exhibits and Schedules to, the Transaction Document in which such references appear, (v) any reference to any law shall include all statutory and regulatory provisions consolidating, amending, replacing or interpreting such law and any reference to any law or regulation shall, unless otherwise specified, refer to such law or regulation as amended, modified, extended, restated, replaced or supplemented from time to time, and (vi) the words “asset” and “property” shall be construed to have the same meaning and effect and to refer to any and all real and personal property and tangible and intangible assets and properties, including cash, securities, accounts and contract rights.

(b) In the computation of a period of time from a specified date to a later specified date, the word “from” means “from and including;” and each of the words “to” and “until” means “to but excluding;” and the word “through” means “to and including.”

(c) Where any payment is to be made, any funds are to be applied or any calculation is to be made under this Agreement on a day that is not a Business Day, unless this Agreement otherwise provides, such payment shall be made, such funds shall be applied and such calculation shall be made on the succeeding Business Day, and payments shall be adjusted accordingly.

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(d) Section headings herein and in the other Transaction Documents are included for convenience of reference only and shall not affect the interpretation of this Agreement or any other Transaction Document.

(e) Any reference herein or in any other Transaction Document to a merger, transfer, consolidation, amalgamation, assignment, sale, disposition or transfer, or similar term, shall be deemed to apply to a division of or by a limited liability company, or an allocation of assets to a series of a limited liability company (or the unwinding of such a division or allocation), as if it were a merger, transfer, consolidation, amalgamation, assignment, sale, disposition or transfer, or similar term, as applicable, to, of or with a separate Person. Any division of a limited liability company shall constitute a separate Person hereunder (and each division of any limited liability company that is a Subsidiary, joint venture or any other like term shall also constitute such a Person or entity).

Section 1.3 Accounting Terms.

(a) Generally. Except as otherwise specifically prescribed herein, all accounting terms not specifically or completely defined herein shall be construed in conformity with, and all financial data required to be submitted pursuant to this Agreement shall be prepared in conformity with, GAAP applied on a consistent basis, as in effect from time to time, applied in a manner consistent with that used in preparing the Company’s most recent audited financial statements (copies of which were delivered to the Purchaser Representative by the Company), except as otherwise specifically prescribed herein.

(b) Changes in GAAP. If at any time any change in GAAP would affect the computation of any financial requirement set forth in any Transaction Document, and either the Company or the Purchaser Representative shall so request, the Purchaser Representative, the Purchasers and the Company shall negotiate in good faith to amend such requirement to preserve the original intent thereof in light of such change in GAAP (subject to the approval of the Purchaser Representative); provided, that, until so amended, (i) such requirement shall continue to be computed in accordance with GAAP prior to such change therein and (ii) the Company shall provide to the Purchaser Representative and the Purchasers financial statements and other documents required under this Agreement or as requested hereunder setting forth a reconciliation between calculations of such requirement made before and after giving effect to such change in GAAP.

ARTICLE II

PURCHASE, SALE AND ASSIGNMENT OF THE PURCHASED PROCEEDS; CLOSING AND PAYMENT OF PURCHASE PRICE

Section 2.1 Purchase, Sale and Assignment.

(a) Subject to the terms and conditions of this Agreement, on the Effective Date, the Company hereby sells, contributes, assigns, transfers, conveys and grants to the Purchasers, and the Purchasers (in their respective percentages set forth in the definition of Purchased Proceeds) hereby purchase, acquire and accept from the Company, all of the Company’s rights, title and interest in and to the Purchased Proceeds and proceeds thereof, free and clear of any and all Liens, other than those Liens created under the Transaction Documents in favor of the Purchaser Representative, for the benefit of the Secured Parties.

(b) It is the intention of the Parties that the sale, transfer, assignment and conveyance contemplated by this Agreement be, and is, a true, complete, absolute and irrevocable sale, transfer, assignment and conveyance by the Company to the Purchasers of all of the Company’s right, title and interest in and to the Purchased Proceeds and proceeds thereof. None of the Company, the Purchaser

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Representative or any of the Purchasers intends the transactions contemplated by this Agreement to be characterized or treated as a loan from the Purchaser Representative or the Purchasers to the Company or as a financing transaction or a borrowing. It is the intention of the Parties that the beneficial interest in and title to the Purchased Proceeds and any “proceeds” (as such term is defined in the UCC) thereof shall not be part of the Company’s estate in the event of the filing of a petition by or against the Company under any Debtor Relief Laws. Each of the Company, the Purchaser Representative and each of the Purchasers hereby waives, to the maximum extent permitted by Applicable Law, any right to contest or otherwise assert in any bankruptcy or insolvency proceeding that this Agreement does not constitute a true, complete, absolute and irrevocable sale, transfer, assignment and conveyance by the Company to the Purchasers of all of the Company’s right, title and interest in and to the Purchased Proceeds and proceeds thereof under Applicable Law, which waiver shall, to the maximum extent permitted by Applicable Law, be enforceable against the Company in any bankruptcy or insolvency proceeding relating to either the Company or such Subsidiary. Accordingly, the Company shall treat the sale, transfer, assignment and conveyance of the Purchased Proceeds and proceeds thereof as a sale of an “account” or a “payment intangible” (as appropriate) in accordance with the UCC, and the Company hereby authorizes the Purchaser Representative to file financing statements (and continuation statements with respect to such financing statements when applicable) naming the Company as the seller and the Purchaser Representative, as agent for the Purchasers, as the purchaser in respect to the Purchased Proceeds and proceeds thereof. Not in derogation of the foregoing statement of the intent of the Parties in this regard, and for the purposes of providing additional assurance to the Purchaser Representative and the Purchasers in the event that, despite the intent of the Parties, the sale, transfer, assignment and conveyance contemplated hereby is hereafter held not to be a sale, the Company shall, prior to the Effective Date, satisfy the obligations set forth Section 6.7 below. Each of the Parties intends to and shall treat the purchase of the Purchased Proceeds as a true sale on its books and records; provided that, notwithstanding any provision in this Agreement or the other Transaction Documents to the contrary, the Company shall not be required to treat the purchase of the Purchased Proceeds as a sale on its books and records to the extent that GAAP requires a different treatment (in which case however the Company’s financial statements will, to the extent that GAAP so requires or permits, contain footnotes or such other description reasonably acceptable to the Purchaser Representative to the effect that the Company has transferred and relinquished all legal title and equitable interests in the Purchased Proceeds).

Section 2.2 Purchase Price. The Parties acknowledge and agree that the purchase price (the “Purchase Price”) to be paid for the sale, transfer, assignment and conveyance of the Purchased Proceeds is One Million Five Hundred Seventy-Five Thousand Dollars ($1,575,000.00).

Section 2.3 No Assumed Obligations. Notwithstanding any provision in this Agreement or any other writing to the contrary, the Purchasers and the Purchaser Representative are not assuming any liability or obligation of the Company or any of the Company’s Affiliates of whatever nature, whether presently in existence or arising or asserted hereafter and whether under the GSK License Agreement, the Meiji License Agreement or otherwise, including the obligation to make the GSK Development Payment. All such liabilities and obligations, including in respect of the GSK License Agreement and the other Material Contracts, shall be retained by and remain liabilities and obligations of the Company or the Company’s Affiliates, as the case may be (the “Excluded Liabilities and Obligations”).

Section 2.4 Excluded Assets. The Purchaser Representative and the Purchasers do not, pursuant to any of the Transaction Documents, purchase, acquire or accept any assets or contract rights of the Company, or any other assets of the Company (including, without limitation, all Retained Proceeds), other than its rights with respect to the Purchased Proceeds and proceeds thereof and, to the extent provided in the Transaction Documents, the Back-up Collateral.

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ARTICLE III

COLLECTION ACCOUNT; PAYMENT PROVISIONS; Taxes

Section 3.1 Collection Account.

(a) Establishment of Collection Account; Control Agreement; Maintenance, Collection and Other Fees and Expenses.

(i) On or prior to the Effective Date, the Company shall establish with the Depositary Bank the Collection Account and enter into an Account Control Agreement with the Depositary Bank with respect to the Collection Account; provided that the foregoing requirement shall be deemed satisfied upon compliance by the Company with Section 4.01(c)(i) of the NPA on or before the Effective Date. On the Effective Date, the Company shall deliver instructions to GSK in the form of Exhibit D (the “Payment Instruction Letter”) with respect to the GSK Proceeds and proceeds therefrom, with a copy of the Payment Instruction Letter contemporaneously provided to the Purchaser Representative, which instructions shall direct GSK to remit the GSK Proceeds and proceeds therefrom to the Collection Account; provided that the requirement shall be deemed satisfied upon compliance by the Company with Section 4.01(d) of the NPA. The Payment Instruction Letter shall not be revoked or terminated or amended, modified, supplemented, restated or otherwise altered in any manner without the prior written consent of the Purchaser Representative.

(ii) The Company shall maintain at all times, by receipt of periodic cash equity contributions to the capital of the Company from Parent pursuant to the Equity Contribution Agreement (and not, for the avoidance of doubt, cash constituting GSK Proceeds), a minimum unrestricted (except for restrictions arising pursuant to the Account Control Agreement or the Transaction Documents) cash balance in the Collection Account sufficient to pay all Collection Account Fees (as defined in the Contribution Agreement) and other fees, expenses and charges of the Depositary Bank anticipated to be due and payable in the next [***].

(iii) Prior to the New Depositary Bank Trigger Date, the Company shall not direct the Depositary Bank to transfer funds held in the Collection Account except with the express prior written consent of Purchaser Representative.

(b) Replacement Collection Account; New Depositary Bank Trigger Date.

(i) During the Payment Term, the Company shall have no right to terminate the Collection Account without the Purchaser Representative’s prior written consent; provided that, without the Purchaser Representative’s consent to the change of location of such accounts (provided such location is in the United States), the Company shall have the right from time to time to establish a replacement Collection Account with a replacement Depositary Bank, provided, that such replacement Depositary Bank shall have entered into an Account Control Agreement with and acceptable to the Purchaser Representative with respect to such replacement accounts effective no later than the date of replacement. If the terms of the Account Control Agreement for the Collection Account limit the Depositary Bank’s ability to make distributions of the GSK Proceeds in accordance with finalized Payment Certificates, then the Company shall establish a replacement Collection Account with a replacement Depositary Bank that is able to make such distributions, and any such replacement shall be made in accordance with the preceding sentence. For purposes of this Agreement, any reference to the “Collection Account”, “Depositary Bank” or “Account Control Agreement” shall refer to such replacement Collection Account, Depositary Bank or Account Control Agreement, as the context requires.

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(ii) On or prior to the New Depositary Bank Trigger Date, (A) the Company shall establish with the Depositary Bank a Collection Account (or otherwise modify the terms of the Collection Account in effect on the Closing Date), (B) the Company and Purchaser Representative shall enter into an Account Control Agreement (or otherwise amend, modify or replace the Account Control Agreement in effect on the Effective Date) with the Depositary Bank with respect to the Collection Account and (C) the Company and such other applicable parties required to be party thereto shall have entered into such other cash management, paying agent, escrow arrangement or similar arrangements, in each case, in form and substance satisfactory to Purchaser Representative, required by Purchaser Representative to give full effect to Article III hereof and any other provisions or definitions of this Agreement reasonably related thereto.

Section 3.2 Payment of GSK Proceeds.

(a) Promptly (and in any event no later than [***]) following receipt by the Company from GSK of a GSK Payment Notice or a Royalty Report that is not also sent to and received by the Purchaser Representative, the Company shall notify the Purchaser Representative in writing and provide to the Purchaser Representative a complete copy of such GSK Payment Notice or Royalty Report, as applicable.

(b) Promptly (and in any event no later than [***]) following the earlier of (i) receipt by the Company from GSK of a GSK Payment Notice that is not also received by the Purchaser Representative, (ii) receipt by the Company of notice from the Purchaser Representative that a Commercial Milestone Event or Sales Milestone Event (each as defined in the GSK License Agreement) giving rise to GSK Proceeds has been achieved, or (iii) the Company obtaining Knowledge that a Commercial Milestone Event or Sales Milestone Event (each as defined in the GSK License Agreement) giving rise to Purchased Proceeds has been achieved but that GSK has not provided a GSK Payment Notice in accordance with the terms of the GSK License Agreement, the Company shall issue a Valid Invoice (as defined in the GSK License Agreement) to GSK in respect of the applicable Commercial Milestone Payment or Sales Milestone Payment (each as defined in the GSK License Agreement) pursuant to Section 6.3 or Section 6.4 of the GSK License Agreement, as applicable, and provide a copy of such Valid Invoice (along with proof of delivery to GSK) to the Purchaser Representative. Promptly (and in any event no later than [***]) following a determination under Section 6.8(b) of the GSK License Agreement that additional amounts are owed by GSK to the Company with respect to any GSK Proceeds, the Company shall issue a Valid Invoice (as defined in the GSK License Agreement) to GSK in respect of such amounts, and provide a copy of such Valid Invoice (along with proof of delivery to GSK) to the Purchaser Representative.

(c) Promptly (and in any event no later than [***]) following the payment of any GSK Proceeds into the Collection Account, the Company shall, or Parent on behalf of the Company shall, deliver to the Purchaser Representative a certificate (each, a “Payment Certificate”), in form and substance reasonably satisfactory to the Purchaser Representative, certified by a Responsible Officer, and setting forth in reasonable detail:

(i) the aggregate amount of GSK Proceeds received in the Collection Account as a result of such payment, together with any other amounts then on deposit in the Collection Account that constitute proceeds of GSK Proceeds;

(ii) the portion of such GSK Proceeds constituting (1) the associated Meiji Royalty Payments, if any, that the Company or any of its Affiliates is obligated to make, (2) the Purchased Proceeds, and (3) the Retained Excess Proceeds, including reasonable detail supporting such allocation;

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(iii) any amounts previously received by the Company, Parent or any of their Affiliates that constitute Purchased Proceeds but were not deposited directly into the Collection Account, together with the status of any remittance thereof to the Collection Account or Purchaser Representative;

(iv) the calculation of each amount to be distributed (1) to Meiji in accordance with the terms of the Meiji License Agreement, (2) to each Purchaser in accordance with the payment mechanics set forth in this Agreement, (3) to Parent, with respect to any Retained Excess Proceeds, if any, that have not been sold to a Third Party in a Permitted Royalty Monetization, and (4) to each Monetization Counterparty, if any, to the extent of such Monetization Counterparty’s rights to any Retained Excess Proceeds; and

(v) the cash balance in the Collection Account after giving effect to the application of such distributions.

The Purchaser Representative shall have a period of [***] following receipt of each Payment Certificate to review such information and notify the Company and/or the Servicer of any objection thereto (each, a “Payment Objection Notice”). If the Purchaser Representative delivers a Payment Objection Notice, (i) the Company and/or Servicer agree to negotiate in good faith with Purchaser Representative for a period of [***] and (ii) thereafter, the amounts constituting the associated Meiji Royalty Payments, if any, that the Company or any of its Affiliates is obligated to make, and the Purchased Proceeds, shall be the amounts that the Purchaser Representative determines, in its good faith business judgment, to be correct, as set forth in such Payment Objection Notice, and such Payment Objection Notice shall supersede the applicable Payment Certificate for purposes of determining such amounts. Each Payment Objection Notice shall set forth in reasonable detail the Purchaser Representative’s determination of such payment amounts or other correction and the basis for any variance from the Payment Certificate. For clarity, with respect to the Retained Excess Proceeds in a Payment Certificate, the Company shall have the sole right to determine the distribution of such amounts as between Parent and each Monetization Counterparty, as applicable. Each Payment Certificate delivered pursuant to this Section 3.2(c) shall be accompanied by reasonable supporting documentation, including copies of any Royalty Reports or GSK Payment Notices that are relevant to the GSK Proceeds that are the subject of such Payment Certificate to the extent not previously delivered to the Purchaser Representative pursuant to Section 3.2(a). A Payment Certificate shall be deemed to be finalized on the date that the Purchaser Representative delivers a Payment Objection Notice to the Company, or if no such Payment Objection Notice is delivered, the earlier of notice from the Purchaser Representative that it has no objection to such Payment Certificate and [***] following receipt by the Purchaser Representative of such Payment Certificate. The Company shall, or Parent on behalf of the Company shall, within [***] following finalization of each Payment Certificate, deliver to the Depositary Bank instructions to distribute the applicable GSK Proceeds in accordance with such Payment Certificate. Notwithstanding anything to the contrary contained herein or in any other Transaction Document, any delivery, transmission or submission by Purchaser Representative or any Purchaser to the Depositary Bank of any Payment Certificate, Payment Objection Notice or related payment instruction, or any designation of, or service by, Purchaser Representative or any Purchaser as the contact for any verbal callback or other confirmation required by the Depositary Bank in connection therewith, shall be made solely as an accommodation to the Company and/or the Servicer and in reliance solely on information furnished by or on behalf of the Company and/or the Servicer, without any duty to verify, investigate, confirm or authenticate the accuracy, completeness, validity or authorization thereof. Neither Purchaser Representative nor any Purchaser, nor any of their respective officers, employees, representatives or any other Purchaser Indemnified Party, shall have any liability or responsibility whatsoever, whether in contract, tort, equity, statute or otherwise, for any error, omission, inaccuracy, misstatement, unauthorized instruction, misdirection, incorrect payment, failed payment, delayed payment, overpayment, underpayment or non-receipt of funds arising out of or relating to any such certificate, notice, form,

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information or instruction (other than gross negligence or willful misconduct). To the fullest extent permitted by Applicable Law, the Company, on behalf of itself and the Servicer and Holdings, hereby irrevocably, absolutely and unconditionally waives, releases and agrees not to sue Purchaser Representative, any Purchaser or any of their respective officers, employees, representatives or any other Purchaser Indemnified Party for any claims, demands, actions, losses, liabilities, damages, costs or expenses, whether direct, indirect, consequential or otherwise, known or unknown, accrued or unaccrued, arising out of or relating to any such certificate, notice, form, information, instruction, related submission to the Depositary Bank or verbal callback or other confirmation with the Depositary Bank (other than gross negligence or willful misconduct); and no such delivery, transmission, submission, designation or service shall constitute any representation, warranty, certification, confirmation, adoption or approval by Purchaser Representative, any Purchaser or any such Purchaser Indemnified Party, and the Company, the Servicer and Holdings shall remain solely responsible therefor.

(d) If, notwithstanding the terms of the Payment Instruction Letter and the Account Control Agreements, GSK, any of its Affiliates, any of its sublicensees, or any other Person makes any future payment of the Purchased Proceeds or proceeds therefrom to the Company or any of its Affiliates, then (i) such amount shall be held by the Company (or the Company shall ensure that such amount is held by its Affiliate, as applicable) in trust for the benefit of the Purchaser Representative, for the benefit of the Purchasers, (ii) the Company (or such Affiliate) shall have no right, title or interest whatsoever in such portion of such payment and shall not create or suffer to exist any Lien thereon and (iii) the Company shall (or the Company shall ensure that such Affiliate shall, as applicable) promptly, and in any event no later than [***] following the receipt by the Company (or such Affiliate) of such portion of such payment, shall remit such portion of such payment to the Purchaser Representative’s Account pursuant to Section 3.2(e) in the exact form received with all necessary endorsements.

(e) The Company shall make all payments required to be made by it to each Purchaser pursuant to this Agreement by wire transfer of immediately available funds, without Set-Off or deduction, to the Purchaser Representative’s Account or to such other account designated in writing by the Purchaser Representative for the benefit of such Purchaser.

(f) If, notwithstanding the terms of the Payment Instruction Letter and the Account Control Agreement, GSK, any of its Affiliates, any of its sublicensees or any other Person makes any payment to the Purchaser Representative that does not consist entirely of Purchased Proceeds, then (i) the portion of such payment that does not constitute Purchased Proceeds shall be held by the Purchaser Representative in trust for the benefit of the Company, (ii) the Purchaser Representative shall have no right, title or interest whatsoever in such payment and shall not create or suffer to exist any Lien thereon and (iii) the Purchaser Representative promptly, and in any event no later than [***] following the receipt by the Purchaser Representative of such payment, shall remit such payment to the Company Account pursuant to Section 3.2(g) in the exact form received with all necessary endorsements.

(g) The Purchaser Representative shall make all payments required to be made by it to the Company pursuant to this Agreement by wire transfer of immediately available funds, without Set-Off or deduction to the account set forth on Exhibit E (or to such other account as the Company shall notify the Purchaser Representative in writing from time to time) (the “Company Account”).

(h) If GSK exercises any Non-Permitted Set-Off against any Purchased Proceeds, then the Company shall promptly (and in any event no later than [***] following the payment of the Purchased Proceeds affected by such Non-Permitted Set-Off), make a true-up payment to the Purchaser Representative (for the benefit of the Purchasers) such that Purchaser Representative receives the full amount of such Purchased Proceeds that would have been paid to Purchaser Representative had such Non-Permitted Set-Off not occurred. Notwithstanding anything to the contrary herein, to the extent the Company shall have

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made a true-up payment to the Purchaser Representative (for the benefit of the Purchasers) pursuant to this Section 3.2(h) in respect of any Non-Permitted Set-Off, any subsequent payment received from GSK in respect, and to the extent, of such Non-Permitted Set-Off shall not be included in the Purchased Proceeds, and shall be deemed assigned and transferred to the Company without any further action of the Parties hereto, and shall be subject to Section 3.2(f) to the extent paid to the Purchaser Representative or into the Collection Account. For all purposes hereunder, any true-up payment made pursuant to this Section 3.2(h) will be treated as an adjustment to the Purchase Price for U.S. federal and applicable state and local income tax purposes to the fullest extent permitted by Applicable Law.

Section 3.3 Payment/Currency Exchange. All payments made by a Party hereunder shall be made by deposit of U.S. Dollars by wire transfer in immediately available funds into the applicable account.

Section 3.4 Taxes.

(a) All payments by or on account of any obligation of the Company hereunder or under any other Transaction Document to any Recipient shall be made free and clear of and without deduction or withholding for Taxes, except as required by Applicable Law. If any Withholding Agent is required by Applicable Law to make any withholding or deduction of Taxes in respect of any payment by or on account of any obligation of the Company under any Transaction Document, then (i) the applicable Withholding Agent shall be entitled to make such withholding or deduction and shall timely pay directly to the relevant Governmental Authority the full amount required to be so withheld or deducted and (ii) the applicable Withholding Agent shall promptly forward to the Purchaser Representative an official receipt or other documentation reasonably satisfactory to the Purchaser Representative evidencing such payment to such Governmental Authority.

(b) If any withholding or deduction is made by any Withholding Agent in respect of any Indemnified Taxes, the sum payable by the Company shall be increased by such additional amounts as are necessary to ensure that the net amount actually received by the applicable Purchaser (or, in the case of payments made to the Purchaser Representative for its own account, the Purchaser Representative) will equal the full amount such Recipient would have received had no such withholding or deduction for Indemnified Taxes been made (including any such withholdings or deductions applicable to additional sums payable under this Section 3.4).

(c) The Company shall indemnify each Purchaser and the Purchaser Representative within [***] after demand therefor, for the full amount of any Indemnified Taxes (including Indemnified Taxes imposed or asserted on or attributable to additional amounts payable under Section 3.4(b) or this Section 3.4(c)) payable or paid by such Purchaser or Purchaser Representative or required to be withheld or deducted in respect of a payment to such Purchaser or Purchaser Representative and any reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability delivered to the Company by a Purchaser (with a copy to the Purchaser Representative), or by the Purchaser Representative on its own behalf or on behalf of a Purchaser, shall be conclusive absent manifest error.

(d) The Company shall timely pay to the relevant Governmental Authority in accordance with Applicable Law any Other Taxes.

(e) Any Purchaser that is legally eligible for an exemption from or reduction of any withholding Tax with respect to any payments made under any Transaction Document shall deliver to the Company and the Purchaser Representative, at the time or times reasonably requested by the Company or

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the Purchaser Representative, such properly completed and executed documentation prescribed by Applicable Law or reasonably requested by the Company or the Purchaser Representative as will permit such payments to be made without withholding or at a reduced rate of withholding. In addition, any Purchaser, if reasonably requested by the Company or the Purchaser Representative, shall deliver such other documentation prescribed by Applicable Law or reasonably requested by the Company or the Purchaser Representative as will enable the Company or the Purchaser Representative to determine whether or not such Purchaser is subject to backup withholding or information reporting requirements. Notwithstanding anything to the contrary in the preceding two sentences, the completion, execution and submission of such documentation (other than such documentation set forth in Sections 3.4(e)(ii)(A) or (ii)(B) below) shall not be required if in the Purchaser’s reasonable judgment such completion, execution or submission would subject such Purchaser to any unreimbursed cost or expense or would materially prejudice the legal or commercial position of such Purchaser.

(ii) Without limiting the generality of the foregoing:

(A) Any Purchaser that is a U.S. Person shall deliver to the Company and the Purchaser Representative on or prior to the date on which such Purchaser becomes a Purchaser under this Agreement (and from time to time thereafter upon the reasonable request of the Company or the Purchaser Representative), two properly completed and duly executed copies of IRS Form W-9 certifying that such Purchaser is exempt from U.S. federal backup withholding tax; and

(B) Any Foreign Purchaser shall, to the extent it is then legally entitled to do so, deliver to the Company and the Purchaser Representative (in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Purchaser becomes a Purchaser under this Agreement (and from time to time thereafter upon the reasonable request of the Company or the Purchaser Representative), whichever of the following is applicable:

(1) in the case of a Foreign Purchaser claiming the benefits of an income tax treaty to which the United States is a party, two properly completed and duly executed copies of IRS Form W- 8BEN or IRS Form W-8BEN-E establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to such tax treaty;

(2) two properly completed and duly executed copies of IRS Form W-8ECI; and

(3) to the extent a Foreign Purchaser is not the beneficial owner, properly completed and duly executed copies of IRS Form W-8IMY, accompanied by IRS Form W-8ECI, IRS Form W-8BEN, IRS Form W- 8BEN-E, IRS Form W-9, or other certification documents from each beneficial owner, as applicable.

(f) If any form or certification provided by any Purchaser pursuant to Section 3.4(e) expires or becomes obsolete or inaccurate in any respect, such Purchaser shall promptly update such form or certification or promptly notify the Purchaser Representative and the Company of its legal ineligibility to do so. Notwithstanding anything to the contrary in this Section 3.4, no Purchaser shall be required to deliver any documentation pursuant to this Section 3.4 that such Person is not legally eligible to deliver.

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(g) On or before the date the Purchaser Representative becomes a party to this Agreement, the Purchaser Representative shall provide to the Company, two duly-signed, properly completed copies of IRS Form W-9 or any successor thereto. At any time thereafter, the Purchaser Representative shall provide updated documentation previously provided (or a successor form thereto) when any documentation previously delivered has expired or become obsolete or invalid or otherwise upon the reasonable request of the Company.

(h) If any Party determines, in its sole discretion exercised in good faith, that it has received a refund of any Taxes as to which it has been indemnified pursuant to this Section 3.4 (including by the payment of additional amounts pursuant to this Section 3.4), it shall pay to the indemnifying party an amount equal to such refund (but only to the extent of indemnity payments made under this Section 3.4 with respect to the Taxes giving rise to such refund), net of all out- of-pocket expenses (including Taxes) of such indemnified party and without interest (other than any interest paid by the relevant Governmental Authority with respect to such refund). Such indemnifying party, upon the request of such indemnified party, shall repay to such indemnified party the amount paid over pursuant to this Section 3.4(h) (plus any penalties, interest or other charges imposed by the relevant Governmental Authority) in the event that such indemnified party is required to repay such refund to such Governmental Authority. Notwithstanding anything to the contrary in this Section 3.4(h), in no event will the indemnified party be required to pay any amount to an indemnifying party pursuant to this Section 3.4(h) the payment of which would place the indemnified party in a less favorable net after-tax position than the indemnified party would have been in if the Taxes subject to indemnification and giving rise to such refund had not been deducted, withheld or otherwise imposed and the indemnification payments or additional amounts with respect to such Taxes had never been paid. This Section 3.4(h) shall not be construed to require any indemnified party to make available its tax returns (or any other information relating to its taxes that it deems confidential) to the indemnifying party or any other Person.

(i) Each Purchaser shall severally indemnify the Purchaser Representative, within [***] after written demand therefor, for (i) any Indemnified Taxes or Other Taxes attributable to such Purchaser (but only to the extent that the Company has not already indemnified the Purchaser Representative for such Indemnified Taxes or Other Taxes and without limiting the obligation of the Company to do so) and any Taxes that are excluded from the definition of Indemnified Taxes attributable to such Purchaser, in each case, that are payable or paid by the Purchaser Representative in connection with any Transaction Document, and any reasonable expenses arising therefrom or with respect thereto, whether or not such Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability delivered to any Purchaser by the Purchaser Representative shall be conclusive absent manifest error. Each Purchaser hereby authorizes the Purchaser Representative to set off and apply any and all amounts at any time owing to such Purchaser under any Transaction Document or otherwise payable by the Purchaser Representative to the Purchaser from any other source against any amount due to the Purchaser Representative under this Section 3.4(i).

Section 3.5 Mitigation. If any Purchaser requires the Company to pay any Indemnified Taxes, Other Taxes or additional amounts to such Purchaser or any Governmental Authority for the account of any Purchaser pursuant to Section 3.4, then such Purchaser shall take any steps reasonably requested by the Company to eliminate or reduce further Indemnified Taxes, Other Taxes or additional amounts to be incurred in the future, provided that no Purchaser shall be obligated under this Section 3.5 to undertake any action that would subject such Purchaser to any unreimbursed cost or expense or that would otherwise be disadvantageous to such Purchaser. The Company will pay all reasonable costs and expenses incurred by any Purchaser in connection with any such actions requested under this Section 3.5.

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Section 3.6 Survival. All of the Company’s obligations under Section 3.4 shall survive any assignment by a Purchaser, payment of all Obligations and replacement or resignation of the Purchaser Representative.

ARTICLE IV

CLOSING

Section 4.1 Closing. Subject to the terms of this Agreement, the closing of the transactions contemplated hereby (the “Closing”) shall take place remotely (via the exchange of documents and signatures) contemporaneously with the execution and delivery of this Agreement and upon receipt of the deliverables in Section 4.2 or such other time and place as the Parties hereto mutually agree (the “Effective Date”).

Section 4.2 Closing Deliverables of the Company. At the Closing, the Company shall deliver or cause to be delivered to the Purchaser Representative (for the benefit of the Purchasers) the following:

(a) Transaction Documents. Executed counterparts (including by electronic means) of this Agreement, the Note Documents, the Back-up Security Agreement, and the Bills of Sale executed by the parties thereto (in a manner reasonably acceptable to the Purchaser Representative), and the Payment Instruction Letter, executed by the Company, in each case in form and substance satisfactory to the Purchaser Representative.

(b) Organization Documents, Resolutions, Etc. To the extent not previously provided to the Purchaser Representative, each of the following (which shall be originals or electronic copies, in form and substance reasonably satisfactory to the Purchaser Representative and its legal counsel):

(i) copies of the Organization Documents of the Company certified to be true and complete as of a recent date by the appropriate Governmental Authority of the state or other jurisdiction of its incorporation or organization, where applicable, and the other Organization Documents, in each case certified by a secretary or assistant secretary (or, if such entity does not have a secretary or assistant secretary, a Responsible Officer) of the Company to be true and correct as of the Effective Date;

(ii) such certificates of resolutions or other action, incumbency certificates and/or other certificates of Responsible Officers of the Company as the Purchaser Representative may reasonably require evidencing the identity, authority and capacity of each Responsible Officer thereof authorized to act as a Responsible Officer in connection with this Agreement and the other Transaction Documents to which the Company is a party; and

(iii) such documents and certifications as the Purchaser Representative may reasonably require to evidence that the Company is duly organized or formed, and is validly existing, in good standing and qualified to engage in business in its state of organization or formation.

(c) Opinions of Counsel. Receipt by the Purchaser Representative of a written legal opinion of Wilmer Cutler Pickering Hale and Dorr LLP, addressed to the Purchaser Representative, dated the Effective Date and in form and substance previously agreed between the Company and the Purchaser Representative.

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(d) Lien Searches and Related Matters. Receipt by the Purchaser Representative of the following:

(i) searches of Uniform Commercial Code filings for the Company in the jurisdictions where a filing would need to be made in order to perfect the Purchaser Representative’s back-up security interest in the Back-up Collateral, copies of the financing statements on file in such jurisdictions and evidence that no Liens exist on the Back-up Collateral;

(ii) Uniform Commercial Code financing statements for each appropriate jurisdiction as is necessary, in the Purchaser Representative’s sole discretion, (1) to evidence the transfer of the Transferred Assets from the Parent to the Company under the Contribution Agreement, (2) to evidence the transfer of the Purchased Proceeds and proceeds thereof, from the Company to the Purchasers under this Agreement and (3) to perfect the Purchaser Representative’s back-up security interest in the Back-up Collateral;

(iii) searches of ownership of, and Liens on, the Company’s Patents in the appropriate U.S. governmental offices; and

(iv) such Account Control Agreements as shall be necessary to cause the Company to be in compliance with Section 3.1.

(e) Letter of Direction. Receipt by the Purchaser Representative of a satisfactory letter of direction containing funds flow information with respect to the proceeds of the Purchase Price to be paid on the Effective Date.

(f) Other. Such other documents, instruments, reports, statements and information as may be reasonably requested by the Purchaser Representative.

(g) Tax Form. The Company shall provide to the Purchaser Representative a complete IRS Form W-9 certifying its U.S. status and its exemption from U.S. federal backup withholding tax.

ARTICLE V

REPRESENTATIONS AND WARRANTIES

The Company hereby represents and warrants to the Purchaser Representative and the Purchasers as of the Effective Date as follows:

Section 5.1 Existence, Qualification and Power; Subsidiaries. The Company (a) is duly incorporated, organized or formed, validly existing and in good standing under the Laws of the jurisdiction of its incorporation or organization, (b) has all requisite power and authority and all requisite governmental licenses, authorizations, consents and approvals to (i) own or lease its assets and carry on its business and (ii) execute, deliver and perform its obligations under the Transaction Documents to which it is a party, and (c) is duly qualified and is licensed and in good standing under the Laws of each jurisdiction where its ownership, lease or operation of properties or the conduct of its business requires such qualification or license; except in each case referred to in clauses (b)(i) and (c), to the extent that failure to do so could not reasonably be expected to have a Material Adverse Effect. The Company has no, and has never had any, Subsidiaries.

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Section 5.2 Authorization; No Contravention. The execution, delivery and performance by the Company of each Transaction Document to which the Company is party have been duly authorized by all necessary corporate or other organizational action, and do not (a) contravene the terms of any of the Company’s Organization Documents, (b) conflict with or result in any breach or contravention of, or the creation of any Lien under, or require any payment to be made under (i) any Contractual Obligation (other than under the GSK License Agreement and the Meiji License Agreement) to which the Company is a party or affecting the Company or the properties of the Company, (ii) any Contractual Obligation under the GSK License Agreement or the Meiji License Agreement, or (iii) any order, injunction, writ or decree of any Governmental Authority or any arbitral award to which the Company or its property is subject, or (c) violate, in any material respect, any Law, except (x) in the case of clause (b)(i) or (c) above, where any such event could not reasonably be expected to have either (1) a Material Adverse Effect or (2) an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of the Purchasers to receive the payments based on GSK Proceeds and (y) in the case of clause (b)(iii) above, where any such event could not reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of the Purchasers to receive the payments based on GSK Proceeds.

Section 5.3 Execution and Delivery; Binding Effect. Each of the Transaction Documents to which the Company is party has been duly executed and delivered by the Company. Each of the Transaction Documents to which the Company is party constitutes the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its respective terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or similar Applicable Laws affecting creditors’ rights generally, general equitable principles and principles of public policy.

Section 5.4 No Liens; Title to Purchased Proceeds. None of the property or assets, in each case, that specifically relate to the Licensed Products, including the IP Rights, of the Company is subject to any Lien. Upon the Closing, the Purchasers will have acquired, subject to the terms and conditions set forth in this Agreement, good and marketable title to the Purchased Proceeds and the proceeds thereof, free and clear of all Liens. Prior to the transfer to the Purchasers hereunder, the Company owns the Purchased Proceeds, free and clear of all Liens, and no Affiliate of the Company owns the Purchased Proceeds (or any portion thereof). The Company has not caused, and to the Knowledge of the Company, no other Person has caused, the claims and rights of the Purchasers (or the Purchaser Representative on the Purchasers’ behalf) created by any Transaction Document in and to the Back-up Collateral, to be subordinated to any creditor or any other Person. The Company has not granted, nor does there exist, any Lien on the Transaction Documents.

Section 5.5 Governmental and Third Party Authorizations. The execution and delivery by the Company of the Transaction Documents to which the Company is party, the performance by the Company of its obligations hereunder and thereunder and the consummation of any of the transactions contemplated hereunder and thereunder do not require any consent, approval, license, order, authorization or declaration from, notice to, action or registration by or filing with any Governmental Authority or any other Person, except for applicable filings under U.S. securities laws, the filing of Uniform Commercial Code financing statements, notice to GSK pursuant to Section 14.2(b) of the GSK License Agreement and those previously obtained or made or to be obtained or made on the Effective Date.

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Section 5.6 No Material Adverse Effect. Since [***], there has been no event or circumstance, either individually or in the aggregate, that has had or could reasonably be expected to have a Material Adverse Effect.

Section 5.7 No Litigation. There are no actions, suits, proceedings, claims or Disputes pending or, to the Knowledge of the Company, threatened or contemplated, at law, in equity, in arbitration or before any Governmental Authority, by or against the Company or against any of its properties or revenues that (a) purport to affect or pertain to this Agreement or any other Transaction Document, or any of the transactions contemplated hereby or (b) either individually or in the aggregate, could reasonably be expected to have a Material Adverse Effect.

Section 5.8 Solvency. The Company has determined that, by virtue of its entering into the transactions contemplated by the Transaction Documents to which the Company is party and its authorization, execution and delivery of the Transaction Documents to which the Company is party, the Company’s sale of the Purchased Proceeds and proceeds thereof and the consummation of the other transactions contemplated hereby or thereby is in its own best interests. Both before and after consummation of the transactions contemplated by the Transaction Documents and the application of the proceeds therefrom, the Company is Solvent. No step has been taken or is intended by the Company or, to its Knowledge, any other Person, to make the Company subject to a Bankruptcy Event.

Section 5.9 No Brokers’ Fees. Except as set forth on Schedule 5.9, the Company has not taken any action that would entitle any Person to any commission or broker’s fee in connection with the transactions contemplated by this Agreement.

Section 5.10 Compliance with Laws. Neither the Company nor any of its Affiliates (a) has violated or is in violation of, or, to the Knowledge of the Company, is under investigation by a Governmental Authority with respect to or has been threatened to be charged with or been given notice by a Governmental Authority of any violation of, any Applicable Law or any judgment, order, writ, decree, injunction, stipulation, consent order, permit or license granted, issued or entered by any Governmental Authority or (b) is subject to any judgment, order, writ, decree, injunction, stipulation, consent order, Permit or license granted, issued or entered by any Governmental Authority, in each case, that could reasonably be expected to result in a material liability to the Company.

Section 5.11 Investment Company Act. None of the Company, the Parent or any other Subsidiary of the Parent is or is required to be registered as an “investment company” under the Investment Company Act of 1940.

Section 5.12 Taxes. The Company has timely filed (or caused to be filed) all Tax returns and reports required by Applicable Law to have been filed by it and has paid all Taxes required to be paid by it (including in its capacity as a withholding agent), except any such Taxes that are being contested in good faith by appropriate proceedings, diligently conducted, and for which adequate reserves have been provided in accordance with GAAP or where such Taxes, individually or in the aggregate, are less than $[***] and such failure would not have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of the Purchasers to receive the Purchased Proceeds. None of the payments received by the Company or Parent in respect of the GSK Proceeds have been and, under current Law, none of such payments to be received will be, subject to any withholding Tax or Other Tax and, except for claiming benefits as a qualified resident under the income tax treaty between the United States and United Kingdom, neither the Company nor Parent was ever required or requested to establish any

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entitlement to treaty benefits in order to avoid or minimize any such withholdings or deductions. Included payments paid to the Company and Parent have qualified for benefits under the income tax treaty between the United States and United Kingdom. Since formation, the Company has properly been treated as a disregarded entity for U.S. federal and applicable state and local income tax purposes.

Section 5.13 Ownership of the Company. Parent owns, free and clear of all Liens, 100% of the issued and outstanding Equity Interests of Holdings, and there are no outstanding commitments or other obligations of Parent to issue, and no rights of any Person to acquire, any shares of any Equity Interests of Holdings. Holdings owns, free and clear of all Liens, 100% of the issued and outstanding Equity Interests of the Company, and there are no outstanding commitments or other obligations of the Company to issue, and no rights of any Person to acquire, any shares of any Equity Interests of the Company.

Section 5.14 Material Contracts.

(a) The only Material Contracts, as of the Effective Date, are the Transaction Documents, and, after giving effect to the Contribution thereof under the Contribution Agreement, the GSK License Agreement and the Meiji License Agreement.

(b) Attached as Exhibit F-1 is a true, correct and complete copy of the GSK License Agreement, and attached as Exhibit F-2 is a true, correct and complete copy of the Meiji License Agreement. The Company has provided to the Purchaser Representative true, correct and complete copies of (i) all Royalty Reports, (ii) all notices delivered to the Parent or the Company by GSK or by the Parent or the Company to GSK pursuant to, or relating to, the GSK License Agreement, and (iii) all notices delivered to the Parent or the Company by Meiji or by the Parent or the Company to Meiji pursuant to, or relating to, the Meiji License Agreement, in each case of clauses (ii) and (iii), that could reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchaser Representative to receive the Purchased Proceeds. To the Knowledge of the Company, (x) neither the Company nor any of its Affiliates have delivered to GSK, nor has GSK delivered to the Company or any of its Affiliates, correspondence pursuant to, or relating to, the GSK License Agreement, and (y) neither the Company nor any of its Affiliates have delivered to Meiji, nor has Meiji delivered to the Company or any of its Affiliates, correspondence pursuant to, or relating to, the Meiji License Agreement, in case of clauses (x) and (y), that could reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds.

(c) Neither the Company nor any of its Affiliates nor, to the Knowledge of the Company, any Material Contract Counterparty, is in breach or default of any Material Contract and no circumstances or grounds exist that would, upon the giving of notice, the passage of time or both, give rise (i) to a claim by the Company or any of its Affiliates or any Material Contract Counterparty of a breach or default of any Material Contract, or (ii) to a right of rescission, termination (excluding the mere existence of GSK’s right to terminate the GSK License Agreement pursuant to Section 11.2 of the GSK License Agreement), revision, or Set-Off, by any Person, in, to or under any Material Contract. Neither the Company nor any of its Affiliates has received from, or delivered to, any Material Contract Counterparty, any written notice alleging a breach or default under any Material Contract, which breach or default has not been cured as of the Effective Date. Neither the Company nor any of its Affiliates has (A) given notice to a Material Contract Counterparty of the termination of any Material Contract (whether in whole or in part) or any notice to a Material Contract Counterparty expressing any intention to terminate any Material Contract or (B) received from a Material Contract Counterparty thereto any written notice of termination of any Material Contract (whether in whole or in part) or any written notice from a Material Contract

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Counterparty expressing any intention to terminate any Material Contract. To the Knowledge of the Company, there are no facts, circumstances or events that would reasonably be expected to result in the termination of the GSK License Agreement in accordance with its terms.

(d) Each Material Contract is a valid and binding obligation of the Company and, to the Knowledge of the Company, of the applicable Material Contract Counterparty, enforceable against the Company and, to the Knowledge of the Company, each applicable Material Contract Counterparty in accordance with its terms, except as may be limited by general principles of equity (regardless of whether considered in a proceeding at law or in equity) and by applicable bankruptcy, insolvency, moratorium and other similar laws of general application relating to or affecting creditors’ rights generally. Neither the Company nor any of its Affiliates has received any notice from any Material Contract Counterparty or any other Person challenging the validity or enforceability of any Material Contract including, with respect to the GSK License Agreement, the obligation of GSK to pay any amounts constituting GSK Proceeds under the GSK License Agreement. Neither the Company nor any of its Affiliates nor, to the Knowledge of the Company, any other Person, has delivered or intends to deliver any notice to the Company or a Material Contract Counterparty challenging the validity or enforceability of any Material Contract, including, with respect to the GSK License Agreement, the obligation of GSK to pay any amounts constituting GSK Proceeds under the GSK License Agreement.

(e) Neither the Company nor any of its Affiliates has granted any material written waiver or, to the Knowledge of the Company, any other material waiver, under any Material Contract, or released any Material Contract Counterparty, in whole or in part, from any of its material obligations under any Material Contract, except, in each case, to the extent set forth in the applicable Material Contract.

(f) There are no settlements, covenants not to sue, consents, judgements, orders or similar obligations which: (i) restrict the rights of the Company or GSK from using any Intellectual Property relating to the research, development, manufacture, production, use, or other Commercialization of the Licensed Products (in order to accommodate any Third Party Intellectual Property or otherwise), or (ii) permit any Third Parties (other than GSK pursuant to the GSK License Agreement) to use the Company’s IP Rights.

(g) The back-up security interests granted by the Company pursuant to the Back-up Security Agreement in its rights in the Material Contracts are not prohibited by the terms of such Material Contracts after giving effect to applicable law.

(h) The Company has made all payments to the respective Material Contract Counterparty of each Material Contract due, owing and required under each Material Contract as of the date hereof. The Company has received all amounts owed to it under the GSK License Agreement prior to the date hereof. The amount of the “Commercial Milestone Payment” (as defined in the GSK License Agreement) for the “First Commercial Sale Milestone” (as defined in the GSK License Agreement), after taking into account the reductions with respect thereto set forth in Section 6.3 of the GSK License Agreement, is $[***].

(i) The Company has not consented to any assignment by the Material Contract Counterparties to any Material Contract of any of its rights or obligations under any such Material Contract and, to the Knowledge of the Company, no Material Contract Counterparty has assigned any of its rights or obligations under any such Material Contract to any Person. Except as contemplated by the Transaction Documents or the NPA, neither the Company nor any of its Affiliates has assigned, in whole or in part, or granted any Lien upon or security interest with respect to, any Material Contract, the Transferred Assets, the Back-up Collateral or the GSK Proceeds.

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(j) The Company has not notified any Person of any claims for indemnification under any Material Contract nor has the Company received any claims for indemnification under any Material Contract.

(k) Except as set forth on Schedule 5.14(k), Neither the Company nor any of its Affiliates has exercised any review or audit rights pursuant to any Material Contract, including the GSK License Agreement.

(l) To the Knowledge of the Company, GSK has not granted (and neither the Company nor any of its Affiliates has received any written notice that GSK has granted) a sublicense to any other Person.

(m) Except as provided in the GSK License Agreement (including Section 6.5(c) of the GSK License Agreement as set forth below) or the Note Documents, neither the Company nor any of its Affiliates is a party to any agreement providing for or permitting any sharing of, or providing for or permitting, any right of counterclaim, credit, reduction or deduction by contract or otherwise (a “Royalty Reduction”) or permitting any Set-Off against, the Purchased Proceeds. GSK has not exercised, and, to the Knowledge of the Company, GSK has not had the right to exercise, and no event or condition exists that, upon notice or passage of time, or both, would permit GSK to exercise, any GSK Royalty Reduction, Royalty Reduction or Set-Off against the Purchased Proceeds or any other amounts payable to GSK under the GSK License Agreement. To the Knowledge of the Company, there are no Third Party Patents that would provide a basis for a GSK Royalty Reduction or Royalty Reduction. The [***] percent ([***]%) reduction to royalty rates in Section 6.5(c) of the GSK License Agreement applies with respect to a given “Product” (as defined in the GSK License Agreement) in a given country in the Territory only if both of the following conditions are true at the applicable point during the applicable “Royalty Term” (as defined in the GSK License Agreement): (i) such Product is not covered by a “Valid Claim” (as defined in the GSK License Agreement) of any Spero Patent (as defined in the GSK License Agreement) in such country; and (ii) the “Regulatory Exclusivity Period” (as defined in the GSK License Agreement), if any, for such Product in such country has expired. There are no compulsory licenses granted or, to the Knowledge of the Company, threatened to be granted, with respect to the IP Rights.

(n) Other than the Material Contracts, there are no Contracts between the Company, Parent or any of their respective Affiliates, on the one hand, and any Material Contract Counterparty, on the other hand, that (i) relate to any Licensed Product or the GSK Proceeds or (ii) could reasonably be expected to have a Material Adverse Effect. Neither the Company nor any of its Affiliates has (A) received any written notice of any dispute from any Material Contract Counterparty for resolution pursuant to any Material Contract or (B) given any written notice of any dispute to a Material Contract Counterparty for resolution pursuant to any Material Contract, in each case of clauses (A) and (B) that could reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds.

Section 5.15 Perfection of Security Interests in the Back-up Collateral. The Back-up Collateral Documents create valid security interests in, and Liens on, the Back-up Collateral purported to be covered thereby, which security interests and Liens will be, upon the timely and proper filings, deliveries, notations and other actions contemplated in the Back-up Collateral Documents perfected security interests and Liens (to the extent that such security interests and Liens can be perfected by such filings, deliveries, notations and other actions) in favor of the Purchaser Representative, for the benefit of the Secured Parties, prior to all other Liens.

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Section 5.16 Names. Set forth on Schedule 5.16(a) is the taxpayer identification number and organizational identification number (in each case, or foreign equivalent) of the Company as of the Effective Date. The exact legal name and jurisdiction of organization of the Company is as set forth on the signature pages hereto. Except as set forth on Schedule 5.16(b), the Company has not during the five years preceding the Effective Date, (x) changed its legal name, (y) changed its jurisdiction of organization, or (z) been party to a merger, consolidation or other change in structure.

Section 5.17 Sanctions Concerns; Anti-Corruption Laws; PATRIOT Act.

(a) Sanctions Concerns. None of the Company, nor any Subsidiary, nor any director, officer, employee, or, to the Knowledge of the Company, any agent, Affiliate or representative thereof, is an individual or entity that is, or is owned or Controlled by one or more individuals or entities that are (i) currently the subject or target of any Sanctions, (ii) included on OFAC’s List of Specially Designated Nationals or Foreign Sanctions Evaders, HMT’s Consolidated List of Financial Sanctions Targets, the Consolidated List of Persons, Groups and Entities Subject to EU Financial Sanctions, or any similar list enforced by any other relevant Sanctions authority or (iii) located, organized or resident in a Designated Jurisdiction (such Persons, collectively, “Sanctioned Persons”). Neither the Company nor any director, officer, employee, agent, Affiliate, or representative thereof has engaged in any direct or indirect transactions or dealings with Sanctioned Persons. The Company has conducted its business in compliance with all applicable Sanctions and have instituted and maintained policies and procedures designed to promote and achieve compliance with such Sanctions.

(b) Anti-Corruption Laws. The Company and its directors, officers, employees and, to the Knowledge of the Company, agents, Affiliates, or representatives have conducted their business in compliance with the United States Foreign Corrupt Practices Act of 1977 (the “FCPA”), and other similar anti-corruption laws in other jurisdictions, and have instituted and maintained policies and procedures reasonably designed to promote and achieve compliance with such laws. Neither the Company nor any director, officer, employee or, to the Knowledge of the Company, agents, Affiliates, or representatives thereof have, directly or indirectly, made, offered, promised, or authorized any payment or provision of any money or anything of value to or for the benefit of any “foreign official” (as such term is defined in the FCPA), foreign political party or official thereof, or candidate for foreign political office for the purpose of (i) influencing any official act or decision of such official, party or candidate, (ii) inducing such official, party or candidate to use his, her or its influence to affect any act or decision of a foreign governmental authority or (iii) securing any improper advantage, in the case of (i), (ii) and (iii) above in order to assist the Company or any of its Affiliates in obtaining or retaining business for or with, or directing business to, any person. Neither the Company nor any directors, officers, employees or, to the Knowledge of the Company, any of its agents, Affiliates, or representatives have made or authorized any bribe, rebate, payoff, influence payment, kickback or other unlawful payment of funds or received or retained any funds in violation of any applicable law, rule or regulation.

(c) PATRIOT Act. To the extent applicable, the Company is in compliance with (i) the Trading with the Enemy Act, as amended, and each of the foreign assets control regulations of the United States Treasury Department (31 CFR, Subtitle B, Chapter V, as amended) and any other enabling legislation or executive order relating thereto and (ii) the USA PATRIOT Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)).

Section 5.18 Indebtedness. Neither Holdings nor the Company has any Indebtedness other than pursuant to the Transaction Documents.

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Section 5.19 Intellectual Property Matters.

(a) Schedule 5.19(a) sets forth an accurate and complete list of the unexpired issued and pending applications for Product Patents. Other than as set forth on Schedule 5.19(a) there is no Patent owned or licensed by the Company or its Affiliates relating to the Commercialization of the Licensed Products in the Territory. For each Product Patent set forth on Schedule 5.19(a), the Company has indicated: (i) the jurisdictions in which such Product Patent is filed, pending, allowed, granted or issued, (ii) the patent number, registration number, or patent application number, as applicable, (iii) the registered owner thereof (iv) the Licensed Product to which such Product Patent or Product Patent application relates, (v) the licensor of each Licensed Patent (if different from registered owner), and (vi) the title of such Patent.

(b) The Company is the sole and exclusive owner of the entire right, title and interest in each of the Owned Patents (other than rights granted to GSK pursuant to the GSK License Agreement). The Owned Patents are not subject to any encumbrance, Lien or claim of ownership by any Third Party (other than rights granted to GSK pursuant to the GSK License Agreement). Neither the Company nor any of its Affiliates has received any notice of any claim by any Third Party challenging the ownership of the rights of the Company or Parent in and to the Owned Patents.

(c) The Company has a valid license to each of their respective Licensed Patents, in each case pursuant to the terms of the applicable In-License pursuant to which the Company has in-licensed such Licensed Patent(s).

(d) Each inventor named on the Owned Patents has executed a Contract assigning their entire right, title and interest in and to such Patents and the inventions embodied, described and/or claimed therein, to the owner thereof, and each such Contract has been duly recorded at the relevant Patent Office (including, as applicable, the United States Patent and Trademark Office).

(e) No issued Product Patents have lapsed, expired or otherwise been terminated and no Product Patent application by the Company or, with respect to any Licensed Patent for which a Patent has not yet issued and to the Knowledge of the Company, the applicant therefor, have lapsed, expired, been abandoned or otherwise been terminated, other than by operation of law.

(f) There are no unpaid maintenance fees, annuities or other like payments with respect to the Owned Patents.

(g) Each of the Owned Patents correctly identifies each and every inventor of the claims thereof as determined in accordance with the Laws of the jurisdiction in which such Patent was issued or is pending. To the Knowledge of the Company, there is not any Person who is or claims to be an inventor of any of the Owned Patents who is not a named inventor thereof. Neither the Company nor any of its Affiliates has received any notice from any Person who is or claims to be an inventor of any of the Owned Patents who is not a named inventor thereof. To the Knowledge of the Company, no licensor with respect to any Licensed Patent has received any notice from any Person who is or claims to be an inventor of any of the Licensed Patents who is not a named inventor thereof.

(h) Each of the Owned Patents and claims therein is valid, enforceable and subsisting. Neither the Company nor any of its Affiliates nor, to the Knowledge of the Company, any licensor with respect to any Licensed Patent has received any opinion of counsel that any of the Product Patents or claims therein is invalid or unenforceable. Neither the Company nor any of its Affiliates nor, to the Knowledge of the Company, any licensor with respect to any Licensed Patent has received any notice of any claim by any Third Party challenging the validity or enforceability of any of the Product Patents or claims therein.

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(i) To the Knowledge of the Company, each individual associated with the filing and prosecution of the Product Patents has complied in all material respects with all applicable duties of candor and good faith in dealing with any Patent Office.

(j) To the Knowledge of the Company, there is at least one valid claim in the Product Patents in each of the United States, the United Kingdom, France, Germany, Italy and Spain that would be Infringed by the Company’s or any Subsidiary’s, or GSK’s Commercialization of the Licensed Products but for the Company’s and the Subsidiaries’ rights in such Patents.

(k) There is no pending or, to the Knowledge of the Company, threatened, opposition, interference, reexamination, injunction, claim, suit, action, citation, summons, subpoena, hearing, inquiry, investigation (by the International Trade Commission or otherwise), complaint, arbitration, mediation, demand, decree or other dispute, disagreement, proceeding, claim or inter partes review (in each case, other than standard patent prosecution before a Patent Office) (collectively, “Disputes”) challenging the legality, validity, enforceability or ownership of any of the Owned Patents. To the Knowledge of the Company, there are no Disputes by or with any Third Party against the Company, Parent, GSK or Meiji involving the Product Patents. The Owned Patents set forth on Schedule 5.19(a) are not subject to any outstanding injunction, judgment, order, decree, ruling, change, settlement or other disposition of a Dispute.

(l) To the Knowledge of the Company, and except as separately disclosed to Purchaser Representative, there is no pending or threatened (in writing) claims that the Commercialization of the Licensed Product as currently contemplated Infringes on any Patents or other Intellectual Property rights of any other Person or constitutes misappropriation of any other Person’s Trade Secrets.

(m) To the Knowledge of the Company, none of the conception, development and reduction to practice of the inventions claimed in the Product Patents has constituted or involved the misappropriation of Trade Secrets or other “IP Rights” (used in this instance as defined herein but without regard to whether such “IP Rights” relate to the Commercialization of the Licensed Products in the Territory) or property of any Third Party.

(n) Neither the Company nor any of its Affiliates nor, to the Knowledge of the Company, GSK or Meiji has filed any disclaimer, other than a terminal disclaimer, or made or permitted any other voluntary reduction in the scope of any of the Owned Patents post issuance.

(o) To the Knowledge of the Company, no Third Party Patent would be Infringed or limit or prohibit in any material respect Product Development and Commercialization Activities with respect to any Licensed Product. The Company has not received any notice of any claim by any Third Party asserting that Product Development and Commercialization Activities with respect to any Licensed Product Infringes such Third Party’s Patents.

(p) To the Knowledge of the Company, there are no pending, published patent applications owned by any Third Party, which the Company does not have the right to use, which if issued, would limit or prohibit in any material respect Product Development and Commercialization Activities by or on behalf of the Company or Parent or Commercialization by GSK with respect to any Licensed Product.

(q) To the Knowledge of the Company, no Third Party is Infringing any of the issued Product Patents. The Company has not put any Third Party on notice of any Infringement of any of the issued Product Patents.

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(r) The Company has no owned or exclusively in-licensed Trademarks that are necessary or useful in the development, manufacture or commercialization of Tebipenem Pivoxil Hydrobromide or any Licensed Product in the Field (as defined in the GSK License Agreement) in the Territory.

Section 5.20 Compliance of Licensed Products.

(a) To the Knowledge of the Company, GSK is in compliance with its material obligations to seek, obtain and maintain Regulatory Authorizations for the Licensed Products in the Territory.

(b) Each of Tebipenem Pivoxil Hydrobromide and Utebzi (tebipenem pivoxil) is a Licensed Product.

(c) To the Knowledge of the Company, Tebipenem Pivoxil Hydrobromide has received Regulatory Authorization for marketing and distribution for the indications and in the countries listed on Schedule 5.20(c).

Section 5.21 Disclosure. The Company has disclosed to the Purchaser Representative and the Purchasers all agreements, instruments and corporate or other restrictions to which it or Parent is subject, and all other matters known to it or Parent, that, either individually or in the aggregate, have had or could reasonably be expected to result in a Material Adverse Effect. No report, financial statement, certificate or other information furnished (whether written or oral) by or on behalf of the Company to the Purchaser Representative or any Purchaser in connection with the transactions contemplated hereby and the negotiation of this Agreement or delivered hereunder or under any other Transaction Document (in each case, as modified or supplemented by other information so furnished and when taken as a whole) contains any material misstatement of fact or omits to state any fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading in any material respect; provided, that, with respect to financial projections, estimates, budgets or other forward-looking information, the Company represents only that such information was prepared in good faith based upon assumptions believed by the Company or Parent to be reasonable at the time such information was delivered to the Purchaser Representative (it being understood that such information is as to future events and is not to be viewed as facts, is subject to significant uncertainties and contingencies, many of which are beyond the control of the Company, the Parent and the Parent’s Subsidiaries, that no assurance can be given that any particular projection, estimate, budget or forecast will be realized and that actual results during the period or periods covered by any such projections, estimate, budgets or forecasts may differ significantly from the projected results and such differences may be material).

ARTICLE VI

COVENANTS

During the Payment Term:

Section 6.1 Books and Records. The Company shall keep and maintain, or cause to be kept and maintained, at all times, full and accurate books and records adequate to reflect accurately all financial information received and all amounts paid or received under the GSK License Agreement in respect of the Purchased Proceeds and the proceeds thereof.

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Section 6.2 Notices.

(a) Within [***] after receipt by the Company of (i) (x) notice of the commencement by any Third Party of, or (y) written notice from any Third Party threatening to commence, in either case any action, suit, arbitration proceeding, claim, demand, investigation, audit or other proceeding relating to this Agreement, any of the other Transaction Documents, the GSK License Agreement, the Meiji License Agreement, any transaction contemplated hereby or thereby or the Purchased Proceeds or the proceeds thereof (in any case other than any notice contemplated in Section 3.2(a) or Section 6.2(d)), or (ii) any other material written correspondence relating to the foregoing, that, in each case of the foregoing, could reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds, the Company shall (A) notify the Purchaser Representative in writing of the receipt of such notice or correspondence and (B) provide the Purchaser Representative with a written summary of all material details thereof or, to the extent not prohibited by obligations of confidentiality, if any, contained in the GSK License Agreement, if such notice is in writing, furnish the Purchaser Representative with a copy thereof.

(b) Subject to Section 6.5(a), within [***] after receipt by the Company of any material written notice, certificate, offer, proposal, correspondence, report or other communication from GSK or Meiji relating to the GSK License Agreement, the Meiji License Agreement, the IP Rights, the Purchased Proceeds or proceeds thereof or any Licensed Product in the Territory (in any case, other than any notice contemplated by Section 3.2(a), Section 6.2(a) or 6.2(d), and other than any communication that could not reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds), the Company shall (i) notify the Purchaser Representative in writing of the receipt thereof and provide the Purchaser Representative with a written summary of all material details thereof and (ii) to the extent not prohibited by obligations of confidentiality contained in the GSK License Agreement and the Meiji License Agreement, furnish the Purchaser Representative with a copy thereof.

(c) The Company shall provide the Purchaser Representative with written notice within [***] after it obtains Knowledge of any of the following:

(i) the occurrence of any Bankruptcy Event in respect of the Company, Parent or any of its Subsidiaries;

(ii) any breach or default by the Company of or under any material covenant, agreement or other provision of any Transaction Document;

(iii) the Company, GSK, Meiji or any other Third Party receiving any notice of audit or regulatory action by Regulatory Agency (other than routine inquiries) in the Territory relating to any of the Licensed Products or the Purchased Proceeds or proceeds thereof, in each case, that could reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds;

(iv) any representation or warranty made by the Company in this Agreement or any of the other Transaction Documents (or in any certificate delivered by the Company to the Purchaser Representative pursuant to this Agreement) shall prove to be untrue, inaccurate or incomplete in any material respect on the date as of which made;

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(v) the occurrence or existence of any change, effect, event, occurrence, state of facts, development or condition that has had, or would reasonably be expected to have, a Material Adverse Effect;

(vi) GSK has failed to prepare, execute, deliver or file any agreements, documents or instruments that are necessary to secure and maintain any Regulatory Authorizations for the relevant Licensed Product (except where GSK’s failure to do so would not reasonably be expected to result in a Material Adverse Effect);

(vii) GSK has withdrawn or abandoned, or failed to take any action necessary to prevent the withdrawal or abandonment of, any Regulatory Authorization for the relevant Licensed Product once obtained (except where such withdrawal or abandonment would not reasonably be expected to result in a Material Adverse Effect); or

(viii) GSK has consented to the withdrawal or abandonment of any Regulatory Authorization for the relevant Licensed Product (except where such withdrawal or abandonment would not reasonably be expected to result in a Material Adverse Effect).

(d) In addition to the Royalty Reports to be delivered to the Purchaser pursuant to Section 3.2(a), the Company shall, on a quarterly basis, provide: (i) all material reports and other material documentation relating to the Commercialization of the Licensed Products in the Territory provided by GSK to the Company and (ii) the reports and other information received by the Company pursuant to Sections 2.3(a)(iv), 2.11(c), 3.2(d), 3.2(e) (solely with respect to finalized minutes), 4.1(a) (solely with respect to any amendments or modifications to the Development Plan (as defined in the GSK License Agreement)), 4.10(b), 4.10(c), 5.3(d), 5.3(e), 5.6, 7.1(c), 7.2(c), 7.2(d), 7.3(a), 7.3(c), 8.4, 10.4(a), 10.8, 11.7 and 14.6 of the GSK License Agreement. Upon the delivery of such reports, other documentation and information by the Company to the Purchaser Representative, either the Company or the Purchaser Representative may reasonably request to hold one videoconference for the purpose of discussing such quarterly update. In addition to the foregoing, the Purchaser Representative shall have the right, no more than [***], to request [***]. Any such videoconference or meeting shall be at a mutually agreeable reasonable date and time and shall include [***] of each of the Parent, the Company and the Purchaser Representative. Each of the Parent, the Company and the Purchaser Representative shall be solely responsible for their own costs and expenses associated with such videoconferences and meetings, including all travel and accommodations.

(e) The Company shall notify the Purchaser Representative in writing not less than [***] prior to any change in, or amendment or alteration of, the Company’s (i) legal name, (ii) form or type of organizational structure or (iii) jurisdiction of organization.

(f) The Company shall notify the Purchaser Representative in writing not more than [***] after becoming aware that any Tax may be required to withheld with respect to any payment under the GSK License Agreement or otherwise to the Purchaser Representative or the Purchasers pursuant to this Agreement.

(g) Promptly (and in any event, within [***]) notify the Purchaser Representative after (i) the Company or any Subsidiary enters into a new Material Contract or amends, supplements or otherwise modifies an existing Material Contract and provide the Purchaser Representative with a true, correct and complete copy of such new Material Contract or such amendment, supplement or modification or (ii) an existing Material Contract is terminated, in whole or in part.

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(h) Promptly (and in any event within [***]) notify the Purchaser Representative after the Company has Knowledge of any act of Infringement of any Intellectual Property listed on Schedule 5.19(a) which could reasonably be expected to materially impair GSK’s ability to generate revenue from the Licensed Products which gives rise to GSK’s obligation to pay the Purchased Proceeds in accordance with the terms of the GSK License Agreement.

(i) Each notice pursuant to clauses (a) through (h) of this Section 6.2 shall be accompanied by a statement of a Responsible Officer of the Company setting forth details of the occurrence referred to therein. Each notice pursuant to Section 6.2(c)(ii) shall describe with particularity any and all provisions of this Agreement and any other Transaction Document that have been breached.

Section 6.3 Preservation of Existence, Etc. The Company will:

(a) Preserve, renew and maintain in full force and effect its legal existence under the Laws of the jurisdiction of its organization and its Organization Documents.

(b) Preserve, renew and maintain in full force and effect its good standing under the Laws of the jurisdiction of its organization.

(c) Use Commercially Reasonable and Diligent Efforts to maintain all rights, privileges, permits, licenses and franchises necessary or desirable in the normal conduct of its business, except to the extent that the failure to do so could not reasonably be expected to have a Material Adverse Effect.

Section 6.4 Compliance with Laws. The Company will comply with the requirements of all Laws, including Healthcare Laws, and all orders, writs, injunctions and decrees applicable to it or to its business or property, except in such instances in which (a) such requirement of Law or order, writ, injunction or decree is being contested in good faith by appropriate proceedings diligently conducted, or (b) the failure to comply therewith could not reasonably be expected to have a Material Adverse Effect.

Section 6.5 GSK License Agreement.

(a) The Company (i) shall perform and comply with in all material respects its obligations under the GSK License Agreement, (ii) shall not, except with the Purchaser Representative’s consent, (A) forgive, release or compromise any Purchased Proceeds payable by GSK under the GSK License Agreement, or (B) amend, modify, supplement, restate, waive, cancel, rescind or terminate (or consent to any cancellation, rescission or termination of), in whole or in part, any provision of or right under the GSK License Agreement in a manner that would reasonably be expected to have adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds, (iii) shall not, except with the Purchaser Representative’s consent, enter into any new contract, agreement or legally binding arrangement in respect of the Purchased Proceeds or the Licensed Products in the Territory (including, without limitation, the IP Rights with respect to Commercialization of the Licensed Products in the Territory), and (iv) shall not agree to do any of the foregoing. The Company shall promptly (and in any case within [***] after the occurrence of the applicable event) deliver to the Purchaser Representative (1) copies of all fully-executed or definitive writings related to the matters set forth in clauses (ii), (iii) and (iv) of the immediately preceding sentence.

(b) Except as otherwise expressly set forth in this ARTICLE VI and except as otherwise consented to by the Purchaser Representative, the Company shall not grant or withhold any consent, exercise or waive any right or option, fail to exercise any right or option or deliver to GSK any

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notice under the GSK License Agreement, in each case to the extent such action would reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds.

(c) Promptly (and in any case within [***]) after (i) receiving written notice from GSK, including any written notice terminating the GSK License Agreement (in whole or in part), alleging any breach of or default under the GSK License Agreement by the Company related to the Purchased Proceeds or the proceeds thereof, or any other material breach or default, or asserting the existence of any facts, circumstances or events that, alone or together with other facts, circumstances or events, would reasonably be expected (with or without the giving of notice or passage of time, or both) to give rise to a breach of or default under the GSK License Agreement by the Company related to the Purchased Proceeds or proceeds thereof or the right to terminate the GSK License Agreement (in whole or in part) by GSK; or (ii) the Company otherwise having Knowledge of any fact, circumstance or event that, alone or together with other facts, circumstances or events, would reasonably be expected (with or without the giving of notice or passage of time, or both) to give rise to a breach of or default under the GSK License Agreement by the Company related to the Purchased Proceeds or the proceeds thereof, or any other material breach or default, or the right to terminate the GSK License Agreement (in whole or in part) by GSK, the Company shall (A) (x) give written notice thereof to the Purchaser Representative and provide the Purchaser Representative with a written summary of all material details thereof, (y) to the extent not prohibited by obligations of confidentiality contained in the GSK License Agreement, include a copy of any written notice received from GSK, and (z) in the case of any such breach or default or alleged breach or default by the Company, describe in reasonable detail any corrective action the Company proposes to take in respect of such breach or default; and (B) in the case of any such breach or default or alleged breach or default by the Company, use Commercially Reasonable and Diligent Efforts to cure such breach or default and give written notice to the Purchaser Representative upon curing such breach or default; provided, however, that if the Company fails to promptly cure any such breach or default, without limiting any other rights it may have, the Purchaser Representative, for the benefit of the Purchasers, shall, upon written notice to the Company and to the extent permitted by the GSK License Agreement, be entitled to take any and all actions the Purchaser Representative considers reasonably necessary to promptly cure such breach or default, and the Company shall cooperate with the Purchaser Representative for such purpose and reimburse the Purchaser Representative, promptly (but in no event later than [***]) following demand, for all reasonable and documented out-of-pocket costs and expenses incurred by the Purchaser Representative in connection therewith.

(d) Except with respect to the transfer of the Retained Excess Proceeds as permitted hereunder, the Transferred Assets under the Contribution Agreement, with respect to the sale of the Purchased Proceeds to the Purchasers as provided in this Agreement, with respect to the security interests granted in favor of the Purchaser Representative, for the benefit of the Purchasers, under the Back-up Collateral Documents, and with respect to rights of the Purchasers under the NPA and the other Transaction Documents with respect to the GSK Proceeds, the GSK License Agreement or the IP Rights, or the security interests granted under the Security Agreement (as defined in the NPA), (i) the Company shall not dispose of, assign or otherwise transfer, in whole or in part, (1) any of the Company’s right, title or interest in or to the applicable IP Rights with respect to the Commercialization of the Licensed Products in the Territory (and the Company shall provide written notice to the Purchaser if it takes any such action outside of the Territory), (2) the GSK License Agreement, (3) the Purchased Proceeds or proceeds thereof or (4) the Back-up Collateral and (ii) the Company shall not grant any Lien on (1) the IP Rights in the Territory (and the Company shall provide written notice to the Purchaser if either of them grants any such Lien outside of the Territory), (2) the Purchased Proceeds or proceeds thereof, (3) the GSK License Agreement or (4) the Back-up Collateral.

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Section 6.6 Termination of the GSK License Agreement.

(a) Without limiting the provisions of Section 6.5 or any other rights or remedies the Purchaser Representative or Purchasers may have under this Agreement, if GSK terminates the GSK License Agreement or the GSK License Agreement otherwise terminates (whether in whole or in part), in any case during the term of the GSK License Agreement, then the Company shall, at the Purchaser Representative’s request and direction at any time after Payment in Full:

(i) subject to the terms and conditions of the GSK License Agreement: (A) prepare the Termination and Wind-Down Plan (as defined in the GSK License Agreement) in accordance with Section 11.7(b) of the GSK License Agreement, provided, that the Company shall provide the Purchaser Representative a reasonable opportunity to review and comment on each draft of the Termination and Wind-Down Plan (as defined in the GSK License Agreement) and any amendments thereto prior to the presentation of such drafts to GSK, and shall consider the Purchaser Representative’s comments thereon in good faith; (B) exercise its rights under Section 11.7(b)(iv) of the GSK License Agreement, if available, to negotiate a Reversion License (as defined in the GSK License Agreement), provided that the Company shall provide the Purchaser Representative a reasonable opportunity to review and comment on the Reversion License (as defined in the GSK License Agreement) prior to execution of such Reversion License (as defined in the GSK License Agreement), and shall consider the Purchaser Representative’s comments thereon in good faith; and (C) take any other commercially reasonable actions with respect to GSK and the GSK License Agreement reasonably requested by the Purchaser Representative to enable a New Arrangement; and

(ii) use Commercially Reasonable and Diligent Efforts for a period of [***] (or such shorter period as the Company and the Purchaser Representative may agree) following such termination to negotiate a license with a Third Party with respect to the applicable IP Rights for such Third Party to Commercialize the applicable Licensed Products for any purpose that GSK would have been permitted to Commercialize the applicable Licensed Products under the GSK License Agreement, which license shall (i) become effective not earlier than the effective date of such termination, (ii) expire not later than the last day of the applicable Royalty Term under the GSK License Agreement (and, if such termination is only in part in respect of the applicable Licensed Product in a particular country (and not in whole), the applicable Royalty Term shall be such term that is applicable under the GSK License Agreement for such applicable Licensed Product in such country) and (iii) include terms, conditions and limitations that are not materially less favorable to the Company, taking into account the sale of the Purchased Proceeds pursuant to the Transaction Documents, than those contained in the GSK License Agreement, including with respect to obligations and costs imposed on the Company, disclaimers of the Company’s liability, Intellectual Property ownership and control and indemnification of the Company (any such license, a “New Arrangement”). The Company shall consult and reasonably consider any comments from the Purchaser Representative with respect to such negotiation of a New Arrangement. If the Company is unable to secure a New Arrangement within [***] of the termination of the GSK License Agreement (or such shorter period as the Company and the Purchaser Representative shall agree), then the Purchaser Representative shall have the right to negotiate a New Arrangement on behalf of the Company, and the Company agrees to use Commercially Reasonable and Diligent Efforts to cooperate and assist the Purchaser Representative in connection with the Purchaser’s efforts pursuant to this sentence. The Company shall not pay (or enter into any agreement to pay) any upfront costs, fees or expenses to a Third Party in connection with the Company’s efforts to locate, negotiate and secure a New Arrangement (“New Arrangement Expenses”) without the prior written consent of Purchaser Representative. In no event shall the Company be required to incur any Obligation of any kind with respect to, and any directions provided by Purchaser

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Representative under this Section 6.6 shall not include any direction regarding, the prosecution, maintenance, enforcement or defense of the Intellectual Property. If Purchaser Representative does not consent to such New Arrangement Expenses, the Company may, upon written notice to the Purchaser Representative, terminate the Initial Search Period (as defined in the NPA). All costs and expenses (including attorneys’ fees and expenses) incurred by the Company complying with this Section 6.6 (including, without limitation, any New Arrangement Expenses consented to by Purchaser Representative), shall be borne by the Purchasers and shall be payable by Purchasers upon demand of the Company.

(b) Should the Company or the Purchaser Representative identify any New Arrangement pursuant to Section 6.6(a)(ii), the Company agrees to exercise Commercially Reasonable and Diligent Efforts to promptly duly execute and deliver a new license agreement effecting such New Arrangement that satisfies the foregoing requirements. All amounts payable to the Company under any New Arrangement that constitute Purchased Proceeds or other amounts intended to replace, succeed to or be substantially equivalent to the Purchased Proceeds shall remain subject to this Agreement and the other Transaction Documents. Following the execution of any New Arrangement, the Parties shall negotiate in good faith and use commercially reasonable efforts to enter into such amendments to this Agreement and the other Transaction Documents as may be reasonably necessary to reflect the terms of such New Arrangement and to preserve, to the greatest extent practicable, the economic benefit of the Purchased Proceeds and the Purchasers’ rights hereunder; provided that, pending the effectiveness of any such amendment, this Agreement shall be interpreted and applied in a manner that gives effect to the Parties’ intent that the Purchasers continue to receive the benefit of the Purchased Proceeds attributable to such New Arrangement.

Section 6.7 Back-up Collateral Matters.

(a) On or prior to the Effective Date, not in derogation of the statement of the intent of the Parties in Section 2.1(b), and for the purposes of providing additional assurance to the Purchaser Representative and the Purchasers in the event that, despite the intent of the Parties, the sale, transfer, assignment and conveyance contemplated hereby is hereafter held not to be a sale, the Company shall enter into the Back-up Security Agreement, pursuant to which the Company shall grant to the Purchaser Representative, a continuing security interest of first priority in all of its right, title and interest in, to and under the Back-up Collateral, whether now or hereafter existing, and any and all “proceeds” thereof (as such term is defined in the Uniform Commercial Code), in each case, for the benefit of the Purchaser Representative and the Purchasers.

(b) (i) The Company authorizes and consents to the Purchaser Representative filing, including with the Secretary of State of the State of Delaware, one or more Uniform Commercial Code financing statements (and continuation statements with respect to such financing statements when applicable) or other instruments and notices, in such manner and in such jurisdictions, as in the Purchaser Representative’s determination may be necessary or appropriate to evidence the purchase, acquisition and acceptance by the Purchasers of the Purchased Proceeds and proceeds thereof hereunder and to perfect and maintain the perfection of each of the Purchaser Representative’s ownership, for the benefit of the Purchasers, in the Purchased Proceeds and proceeds thereof and the back-up security interest in the Back-up Collateral granted by the Company to the Purchaser Representative, for the benefit of the Purchasers, pursuant to the Back-up Security Agreement; provided that the Purchaser Representative will provide the Company with a reasonable opportunity to review any such financing statements (or similar documents) prior to filing and the collateral identified in any such financing shall be limited to a legally sufficient description of the “Back-up Collateral” as defined herein. For greater certainty, the Purchaser Representative will not file this Agreement in connection with the filing of any such financing statements (or similar documents) but may file a summary or memorandum of this Agreement if required under

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Applicable Laws providing for such filing. For sake of clarification, the foregoing statements in this Section 6.7 shall not bind either Party regarding the reporting of the transactions contemplated hereby for GAAP or SEC reporting purposes. (ii) In connection with the foregoing and with the security interests being granted pursuant to the Back-up Security Agreement, the Company shall promptly, upon the reasonable request of the Purchaser Representative, at the Company’s sole cost and expense, (A) execute, acknowledge and deliver, or cause the execution, acknowledgment and delivery of, and thereafter register, file or record, or cause to be registered, filed or recorded, in an appropriate governmental office, any other document or instrument supplemental to or confirmatory of the Transaction Documents or otherwise deemed by the Purchaser Representative reasonably necessary for the continued validity, perfection and priority of the Liens on the Back-up Collateral covered thereby subject to no other Liens other than Liens under the Transaction Documents, or obtain any consents or waivers as may be necessary in connection therewith; (B) deliver or cause to be delivered to the Purchaser Representative from time to time such other documentation, consents, authorizations, approvals and orders in form and substance reasonably satisfactory to the Purchaser Representative as the Purchaser Representative shall reasonably deem necessary to perfect or maintain the Liens on the Back-up Collateral pursuant to the Transaction Documents; and (C) upon the exercise by the Purchaser Representative of any power, right, privilege or remedy pursuant to any Transaction Document which requires any consent, approval, registration, qualification or authorization of any Governmental Authority, execute and deliver all applications, certifications, instruments and other documents and papers that the Purchaser Representative may require. In addition, the Company shall promptly, at its sole cost and expense, execute and deliver to the Purchaser Representative such further instruments and documents, and take such further action as the Purchaser Representative may, at any time and from time to time, reasonably request in order to carry out the intent and purpose of this Agreement and the other Transaction Documents and to establish and protect the rights, interests and remedies created, or intended to be created, in favor of the Purchaser Representative and the Purchasers hereby and thereby.

Section 6.8 Compliance with Material Contracts. The Company shall comply with each Material Contract (other than the GSK License Agreement), except as could not, individually or in the aggregate, reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of the Purchasers to receive the payments based on GSK Proceeds.

Section 6.9 Audits.

(a) The Company shall not, without first consulting the Purchaser Representative, cause an inspection or audit of GSK’s books and records to be conducted pursuant to and in accordance with Section 6.8(b) of the GSK License Agreement except in connection with inspections or audits requested by the Purchaser under the NPA. From time to time, but not more frequently than [***] (including any requests under the NPA), the Purchaser Representative may request the Company to, and the Company shall, cause an inspection or audit of GSK’s books and records in respect of the Purchased Proceeds and proceeds thereof to be conducted pursuant to and in accordance with Section 6.8(b) of the GSK License Agreement. If, following any such inspection or audit, GSK disagrees with the initial independent certified public accounting firm’s calculations, the Company shall, at the direction of the Purchaser Representative, work with GSK to resolve such disagreement; provided, that the Company shall not resolve any such disagreement without the prior written consent of the Purchaser Representative. If GSK and the Company, at the direction of the Purchaser Representative, are unable to reach a mutually acceptable resolution, then at the direction of the Purchaser Representative, the Company shall submit the dispute to the second independent certified public accounting firm in accordance with Section 6.8(b) of the GSK License Agreement. For the purposes of exercising the Purchaser Representative’s rights pursuant to this Section 6.9(a) in respect of the GSK License Agreement, the Company shall appoint such accounting firm of nationally recognized standing as the Purchaser Representative shall select for such purpose (it

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being understood and agreed that any such accounting firm shall, pursuant to Section 6.8(b) of the GSK License Agreement be reasonably acceptable to GSK). The Company and the Purchaser Representative agree that [***] percent ([***]%) of the expenses of, and amounts payable to GSK as a result of any inspection or audit carried out at the request of the Purchaser Representative pursuant to this Section 6.9(a) that would otherwise be borne by the Company pursuant to the GSK License Agreement shall instead be borne by the Purchaser Representative and reimbursed to the Company promptly on demand, including such reasonable fees and expenses of such accounting firm as are to be borne by the Company pursuant to Section 6.8(b) of the GSK License Agreement together with [***]percent ([***]%) of the Company’s out-of-pocket costs and expenses incurred in connection with such inspection or audit; provided, that for the avoidance of doubt, any audit caused by the Company without complying with the consultation requirements in the first two sentences of this Section 6.9(a) shall not be deemed to be carried out at the request of the Purchaser Representative and the Purchaser Representative shall have no obligation to reimburse the Company, pursuant to this sentence, for any fees, costs or expenses incurred by the Company in connection therewith. The Company shall, to the extent not prohibited by obligations of confidentiality contained in the GSK License Agreement pursuant to which an inspection or audit in respect of the Purchased Proceeds is conducted, promptly (but in no event later than [***]) furnish to the Purchaser Representative any inspection or audit report prepared in connection with such inspection or audit.

(b) In the event that any inspection or audit conducted pursuant to Section 6.9(a) uncovers that the amounts actually paid to the Purchaser Representative for any period in respect of the Purchased Proceeds and proceeds thereof were greater than the amounts that should have been paid to the Purchaser Representative for such period in respect of the Purchased Proceeds and proceeds thereof, the Purchaser Representative shall cause the amount of such overpayment to be paid to GSK promptly (but in no event later than [***]) after delivery to the Purchaser Representative, pursuant to Section 6.9(a), of the applicable inspection or audit report or certificate, as the case may be, showing such overpayment. In the event that any inspection or audit conducted pursuant to Section 6.9(a) uncovers that the amounts actually paid to the Purchaser Representative for any period in respect of the Purchased Proceeds and proceeds thereof were less than the amounts that should have been paid to the Purchaser Representative for such period in respect of the Purchased Proceeds and proceeds thereof, the Company shall cooperate and provide assistance as reasonably requested by the Purchaser Representative to cause the amount of such underpayment to be paid to the Purchaser Representative by GSK in accordance with the timeframe set forth in the GSK License Agreement promptly after delivery to the Purchaser Representative, pursuant to Section 6.9(a), of the applicable inspection or audit report or certificate, as the case may be, showing such underpayment.

(c) Without limitation of the foregoing, the Purchaser Representative and its representatives shall have the right for the duration of this Agreement, at the expense of the Company, during regular business hours and upon reasonable prior written notice and exercisable not more than [***] (including any such requests under the NPA), to access, receive, review and make copies of (i) the books and records of the Company and its Affiliates and such other documents and materials as are in the possession or control of the Company or its Affiliates, and (ii) such other information as the Purchaser Representative may reasonably request, in each case of the foregoing subsections (i) or (ii), for the bona fide auditing, tax, regulatory or legal compliance purposes of any Purchaser or its Affiliate, including as reasonably related to confirming and/or verifying the economic, contractual and other rights, interests, entitlements, obligations and terms under the Transaction Documents. Upon written request from the Purchaser Representative, any such information, documents or materials shall be furnished in a digital format either via email or in a virtual data room, in each case as reasonably practicable.

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(d) The Company shall (i) promptly (and in any event within [***]) after any request, deliver such current bank statements and other information relating to all deposit accounts and securities accounts of Issuer and (ii) at the request of Purchaser Representative, provide Purchaser Representative with read-only online access to all deposit accounts (including, without limitation, the Collection Account) and securities accounts of the Company.

Section 6.10 IP Rights.

(a) To the extent required or permitted by the GSK License Agreement and subject to Section 6.10(b) below, the Company shall, at the Company’s expense, diligently file, prosecute and maintain the IP Rights in the Territory in the event that (i) the Company has the sole right to or the first right to file, prosecute or maintain an IP Right in the Territory, or (ii) the Company has the back-up or second right under a Material Contract to, following any Material Contract Counterparty’s decision not to exercise its first right to, file, prosecute or maintain any IP Right in the Territory, including payment of maintenance fees or annuities.

(b) To the extent required or permitted by the GSK License Agreement, the Company shall, at the Company’s expense, in the event that (i) the Company has the sole right to or the first right to enforce or defend any IP Right in the Territory, or (ii) the Company has the back-up or second right under a Material Contract to, following any Material Contract Counterparty’s decision not to exercise its first right to, enforce or defend any IP Right in the Territory, (A) diligently enforce the applicable IP Rights in the Territory against third party infringement, in any jurisdiction, provided that there shall be no obligation to enforce IP Rights in the Territory unless the failure to enforce would reasonably be expected to have adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of the Purchasers to receive the GSK Proceeds, (B) diligently defend the applicable IP Rights in the Territory against any claims of invalidity or unenforceability, in any jurisdiction, and (C) when available in respect of any applicable Licensed Product in the Territory, obtain Patents and any corrections, substitutions, reissues and reexaminations thereof and obtain Patent term extensions and any other forms of Patent term restoration in any country in the Territory. If the Company determines that it is not commercially reasonable to act in respect of matters for which the Company is obligated to act by the foregoing clauses (B) and (C) with respect to a particular IP Right in a particular country in the Territory, the Company shall provide advance written notice thereof to the Purchaser Representative and shall consult with the Purchaser Representative with respect thereto; provided that the Purchaser Representative’s prior written consent (not to be unreasonably withheld) is required to relieve the Company of its obligation to act in accordance with the foregoing clauses (B) and (C) with respect to a particular IP Right in a particular country in the Territory. The Company shall promptly (but in any event within [***]) provide to the Purchaser Representative a copy of any written notice or other documentation received in connection with any such legal action, suit or other proceeding relating to the IP Rights, regardless of whether such legal action, suit or other proceeding occurs inside or outside of the Territory.

(c) The Company shall, except to the extent prohibited by obligations of confidentiality contained in the GSK License Agreement, promptly (but in any event within [***]) after receipt thereof, provide to the Purchaser Representative a copy of all substantive written notices or other documentation relating to the patentability, enforceability, validity, scope or term of the Patents included in the IP Rights, and shall provide the Purchaser Representative with a copy of drafts of any written material proposed to be filed in response thereto.

(d) To the extent required or permitted by the GSK License Agreement, the Company shall not disclaim or abandon, or fail to use Commercially Reasonable and Diligent Efforts necessary or desirable to prevent the disclaimer or abandonment of, any IP Rights in the Territory (and the Company shall provide written notice to the Purchaser Representative if it disclaims or abandons or fails to use

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Commercially Reasonable and Diligent Efforts necessary or desirable to prevent the disclaimer or abandonment of any IP Rights outside of the Territory).

(e) To the extent permitted or required under the GSK License Agreement, the Company shall diligently defend against any claim or action by any other Person that the Commercialization of Licensed Products as currently contemplated in the GSK License Agreement, Infringes on any Patents or other Intellectual Property rights of any other Person or constitutes misappropriation of any other Person’s Trade Secrets or other Intellectual Property rights.

(f) The Company shall not exercise and enforce their applicable rights, or fail to exercise or enforce their rights, in respect of any Material Contract, including the GSK License Agreement, in any manner that would result in a breach of this Agreement.

Section 6.11 Compliance with Permits. In connection with all Product Development and Commercialization Activities by or on behalf of the Company or GSK for each and any Licensed Product, the Company shall comply, and shall use commercially reasonable efforts to cause each Third Party engaging in such activities on behalf of the Party to comply, in all material respects with all Permits.

Section 6.12 Additional Covenants of the Company. Each of Holdings and the Company shall:

(a) only enter into Contracts in its own name as a legal entity separate from the Parent, from Holdings and from any other Person (it being agreed by the Parties that the Company has complied with this requirement in connection with its entry into the Transaction Documents);

(b) not commingle its assets with assets of any other Person, except in connection with, and for the limited purposes of, the Collection Account;

(c) conduct its business only in its own name and comply with all organizational formalities necessary to maintain its separate existence;

(d) maintain separate books and records, showing its assets and liabilities separate and apart from those of any other Person and not have its assets listed on any financial statement of any other Person; provided, however, that the Company’s assets may be included in consolidated financial statements of the Parent in conformity with the applicable provisions of GAAP (provided that such assets are also listed on the Company’s own separate balance sheet);

(e) pay its own liabilities and expenses only out of its own funds or GSK Proceeds as set forth in the NPA; provided that the foregoing shall not prohibit the payment of liabilities and expenses by the Parent on behalf of the Company so long as such payments are subject to reimbursement or are otherwise recorded as capital contributions or intercompany loans;

(f) maintain adequate capital in light of its contemplated business purpose, transactions and liabilities; provided, however, that the foregoing shall not require the holders of its Capital Stock to make additional capital contributions to the Company;

(g) cause the representatives of the Company to act at all times with respect to the Company consistently and not in a manner opposed to the foregoing;

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(h) not incur any Indebtedness except as permitted under Section 9.05 of the NPA;

(i) not, directly or indirectly, effectuate or consummate a Change of Control; provided that a Change of Control described solely in clause (a) of the definition thereof shall be permitted if (i) no Contributor Event of Default (as defined in the NPA) and Servicer Termination Event (as defined in the NPA) exists immediately before or immediately after giving effect thereto and, (ii) either (A) the Company is the surviving Person after giving effect to such Change of Control and remains obligated under the Transaction Documents to which the Company is a party, or (B) any surviving Person expressly assumes in writing all obligations of the Company under the Transaction Documents to which the Company is a party, to the extent such assumption does not occur by operation of law;

(j) not, directly or indirectly, make any dividends or other distributions (whether in cash, securities or other property) to holders of its Equity Interests, other than (i) any dividend or distribution of its rights in the Retained Excess Proceeds and (ii) distributions of Retained Excess Proceeds pursuant to a Permitted Royalty Monetization; and

(k) not issue any Equity Interests of any kind.

Section 6.13 Payment of Taxes. Each of Holdings and the Company will timely (i) file all required U.S. federal, state, local and non-U.S. income tax returns and all other material tax returns and reports and (ii) pay all U.S. federal, state, local and non-U.S. income Taxes and all other material Taxes levied or imposed upon it or its properties, income or assets (including in its capacity as a withholding agent) except those which will be contested in good faith by appropriate proceedings diligently conducted and for which adequate reserves will be established in accordance with GAAP or where such Taxes, individually or in the aggregate, are less than $[***] and such failure would not have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds or the right of the Purchasers to receive the Purchased Proceeds.

Section 6.14 Parent’s Performance on Behalf of the Company. Notwithstanding anything to the contrary in this Agreement, to the extent that Parent performs any obligation of the Company under this Agreement on the Company’s behalf pursuant to Parent’s servicing obligations under the Contribution Agreement, the Company shall be deemed to have satisfied such obligation under this Agreement. For the avoidance of doubt, this Section 6.14 shall not diminish the substantive obligations of the Company or excuse compliance with any requirement that is additional to, or materially different from, the obligations required to be performed by Parent under the Contribution Agreement.

ARTICLE VII

NEGATIVE COVENANTS

During the Payment Term, the Company further covenants and agrees as follows:

Section 7.1 Liens. The Company shall not create, incur, assume or suffer to exist any Lien upon any Purchased Proceeds or proceeds thereof or the Back-up Collateral, whether now owned or hereafter acquired, other than Liens created in favor of the Purchaser Representative, for the benefit of the Secured Parties, pursuant to the Transaction Documents or as otherwise permitted under Section 9.03 of the NPA. For avoidance of doubt, the Company may grant a Lien on the Retained Excess Proceeds and any proceeds thereof as part of a Permitted Royalty Monetization.

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Section 7.2 Fundamental Changes.

(a) Neither Holdings nor the Company shall merge, dissolve, liquidate, consolidate with or into another Person, or dispose of (whether in one transaction or in a series of transactions) all or substantially all of its assets (whether now owned or hereafter acquired) to or in favor of any Person.

(b) Neither Holdings nor the Company shall institute (or consent to the institution of), agree to, or cause, directly or indirectly, any Bankruptcy Event with respect to itself or the other.

Section 7.3 Organization Documents; Fiscal Year; Legal Name, Jurisdiction of Organization and Form of Organization; Certain Amendments; Subsidiaries.

(a) Neither Holdings nor the Company shall amend, modify or change its Organization Documents.

(b) Neither Holdings nor the Company shall (i) enter into any Material Contract (other than those in existence on the Effective Date or in connection with a Permitted Royalty Monetization or New Arrangement) or (ii) amend, change, supplement, waive or otherwise modify (or permit the amendment, change, supplement, waiver or modification of), or enter into any forbearance from exercising any rights with respect to, any Material Contract, in each case without the consent of Purchaser Representative (such consent not to be unreasonably withheld or delayed), if the related amendment, modification, waiver or termination could reasonably be expected to have an adverse effect, in any material respect, on the timing, amount or duration of, the Purchased Proceeds or the right of the Purchasers to receive the Purchased Proceeds.

(c) The Company shall not form, acquire or otherwise establish any new Subsidiary.

Section 7.4 Anti-Corruption Laws; Anti-Terrorism Laws.

(a) The Company will not (i) directly or indirectly knowingly enter into, nor permit any of their respective Subsidiaries or Affiliates to directly or indirectly knowingly enter into, any documents, instruments, agreements or Contracts with any Person that is the subject of Sanctions, or (ii) directly or indirectly, permit any of their respective Subsidiaries or Affiliates to directly or indirectly, (A) conduct any business or engage in any transaction or dealing with any Person that is the subject of Sanctions, including, without limitation, the making or receiving of any contribution of funds, goods or services to or for the benefit of any Person that is the subject of Sanctions, (B) deal in, or otherwise engage in any transaction relating to, any property or interests in property blocked pursuant to Executive Order No. 13224 or any similar executive order or other Anti-Terrorism Law, or (C) engage in or conspire to engage in any transaction that evades or avoids, or has the purpose of evading or avoiding, or attempts to violate, any of the prohibitions set forth in Executive Order No. 13224 or other Anti-Terrorism Law.

(b) The Company shall not engage, nor permit any of its directors, officers, employees or agents to engage, directly or indirectly, in any activity which would constitute a violation of the FCPA or otherwise make, offer, promise or authorize any payment or gift of any money or anything of value to or for the benefit of any “foreign official” (as such term is defined in the FCPA), foreign political party or official thereof or candidate for foreign political office for the purpose of (i) influencing any official act or decision of such official, party or candidate, (ii) inducing such official, party or candidate to use his, her or its influence to affect any act or decision of a foreign Governmental Authority or (iii) securing any improper advantage, in the case of clauses (i), (ii) and (iii) above in order to assist the Company or any of its Affiliates in obtaining or retaining business for or with, or directing business to, any Person.

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Section 7.5 Tax Status. Neither Holdings nor the Company shall take or permit any action that would cause the Company to cease, for U.S. federal or any applicable state or local income tax purpose, to be a disregarded entity owned by a U.S. Person.

ARTICLE VIII

REPRESENTATIONS AND WARRANTIES OF THE PurchaserS and THE PURCHASER REPRESENTATIVE

Each of the Purchaser Representative and the Purchasers hereby represents and warrants separately (and not jointly) to the Company as of the Effective Date as follows:

Section 8.1 Organization. Such entity is a Delaware limited partnership or limited liability company duly organized, validly existing and in good standing under the Laws of its state of formation and has all powers and authority, and all licenses, permits, franchises, authorizations, consents and approvals of all Governmental Authorities, required to own its property and conduct its business as now conducted.

Section 8.2 No Conflicts. None of the execution and delivery by such entity of any of the Transaction Documents to which it is party, the performance by it of the obligations contemplated hereby or thereby or the consummation of the transactions contemplated hereby or thereby will contravene, conflict with, result in a breach, violation, cancellation or termination of, constitute a default (with or without notice or lapse of time, or both) under, require prepayment under, give any Person the right to exercise any remedy (including termination, cancellation or acceleration) or obtain any additional rights under, or accelerate the maturity or performance of or payment under, in any respect, (i) any Applicable Law or any judgment, order, writ, decree, permit or license of any Governmental Authority to which such entity or any of its assets or properties may be subject or bound, (ii) any term or provision of any contract, agreement, indenture, lease, license, deed, commitment, obligation or instrument to which such entity is a party or by which such entity or any of its assets or properties is bound or committed or (iii) any term or provision of any of the organizational documents of such entity, except in the case of clause (i) where any such event would not result in a material adverse effect on the ability of such entity to consummate the transactions contemplated by the Transaction Documents.

Section 8.3 Authorization. Such entity has all powers and authority to execute and deliver, and perform its obligations under, the Transaction Documents to which it is party and to consummate the transactions contemplated hereby and thereby. The execution and delivery of each of the Transaction Documents to which such entity is party, and the performance by it of its obligations hereunder and thereunder, have been duly authorized by it. Each of the Transaction Documents to which such entity is party has been duly executed and delivered by it. Each of the Transaction Documents to which such entity is party constitutes the legal, valid and binding obligation of it, enforceable against it in accordance with its respective terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or similar Applicable Laws affecting creditors’ rights generally, general equitable principles and principles of public policy.

Section 8.4 Governmental and Third Party Authorizations. The execution and delivery by such entity of the Transaction Documents to which it is party, the performance by it of its obligations hereunder and thereunder and the consummation of any of the transactions contemplated hereunder and thereunder do not require any consent, approval, license, order, authorization or declaration from, notice to, action or registration by or filing with any Governmental Authority or any other Person, except as described in Section 5.5.

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Section 8.5 No Litigation. There is no action, suit, arbitration proceeding, claim, citation, summons, subpoena, investigation or other proceeding (whether civil, criminal, administrative, regulatory, investigative or informal and including by or before a Governmental Authority) pending or, to the knowledge of such entity, threatened by or against such entity, at law or in equity, that challenges or seeks to prevent or delay or which, if adversely determined, would prevent or delay the consummation of any of the transactions contemplated by any of the Transaction Documents to which it is party.

Section 8.6 No Brokers’ Fees. Such entity has not taken any action that would entitle any person or entity to any commission or broker’s fee in connection with the transactions contemplated by this Agreement.

Section 8.7 Funds Available. Such entity has sufficient funds on hand to satisfy the Purchaser Representative’s obligation, solely in its capacity as agent for the Purchasers, to pay the Purchase Price due and payable on the Effective Date. Such entity acknowledges and agrees that its obligations under this Agreement are not contingent on obtaining financing.

Section 8.8 Access to Information. Such entity acknowledges that it has (a) reviewed such documents and information relating to the Purchased Proceeds, the Back-up Collateral and the Licensed Products and (b) had the opportunity to ask such questions of, and to receive answers from, representatives of the Company, in each case, as it deemed necessary to make an informed decision to purchase, acquire and accept the Purchased Proceeds in accordance with the terms of this Agreement. Such entity has such knowledge, sophistication and experience in financial and business matters that it is capable of evaluating the risks and merits of purchasing, acquiring and accepting the Purchased Proceeds in accordance with the terms of this Agreement.

Section 8.9 Tax Status. Such entity is a U.S. Person.

ARTICLE IX

Purchaser Representative

Section 9.1 Appointment; Authorization. Each Purchaser hereby appoints HCR SPERO SPV, LLC (or any Affiliate of Purchaser Representative that becomes Purchaser Representative pursuant to the terms hereof) to act on its behalf as Purchaser Representative under this Agreement and the other Transaction Documents and authorizes Purchaser Representative to take such action as Purchaser Representative on its behalf and to exercise such powers under this Agreement and the other Transaction Documents as are delegated to Purchaser Representative by the terms thereof, together with such actions and powers as are reasonably incidental thereto. The provisions of this Article are solely for the benefit of Purchaser Representative and Purchasers, and the Company shall not have rights as a third-party beneficiary of any of such provisions. It is understood and agreed that the use of the term “agent” or “representative” in this Agreement or in any other Transaction Document (or any other similar term) with reference to Purchaser Representative is not intended to connote any fiduciary or other implied (or express) obligations arising under agency doctrine of any applicable law. Instead, such term is used as a matter of market custom, and is intended to create or reflect only an administrative relationship between contracting parties.

Section 9.2 Duties. Purchaser Representative shall not have any duties or obligations except those expressly set forth herein and in the other Transaction Documents, and its duties hereunder shall be administrative in nature. Neither Purchaser Representative nor any of its Affiliates shall be liable for any action taken or not taken by Purchaser Representative (a) with the

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consent or at the request of the Purchasers or (b) in the absence of its own gross negligence or willful misconduct as determined by a court of competent jurisdiction by final and nonappealable judgment. In all cases in which the Transaction Documents do not require Purchaser Representative to take specific action, Purchaser Representative shall be fully justified in using its discretion in failing to take or in taking any action thereunder.

Section 9.3 Reliance. Purchaser Representative shall be entitled to rely upon, and shall not incur any liability for relying upon, any notice, request, certificate, consent, statement, instrument, document or other writing (including any electronic message, Internet or intranet website posting or other distribution) believed by it to be genuine and to have been signed, sent or otherwise authenticated by the proper Person. Purchaser Representative also may rely upon any statement made to it orally or by telephone and believed by it to have been made by the proper Person, and shall not incur any liability for relying thereon. Purchaser Representative may consult with legal counsel (who may be counsel for the Company), independent accountants and other experts selected by it, and shall not be liable for any action taken or not taken by it in accordance with the advice of any such counsel, accountants or experts.

Section 9.4 Indemnification by Purchasers. The Purchasers shall, on a ratable basis, indemnify Purchaser Representative, its Affiliates and their respective officers, partners, directors, trustees, employees, agents and controlling Persons (to the extent not reimbursed by the Company) upon demand against any cost, expense (including counsel fees and disbursements), claim, demand, action, loss or liability (except as a result of Purchaser Representative’s gross negligence, bad faith or willful misconduct as determined by a final non-appealable judgment of a court of competent jurisdiction) that Purchaser Representative may suffer or incur in connection with the Transaction Documents or any action taken or omitted by Purchaser Representative hereunder or thereunder.

Section 9.5 Non-Reliance. Each Purchaser acknowledges that it has, independently and without reliance upon Purchaser Representative or any other Purchaser or any of their respective Affiliates and based on such documents and information as it has deemed appropriate, made its own financial analysis and decision to enter into this Agreement. Each Purchaser also acknowledges that it will, independently and without reliance upon Purchaser Representative or any other Purchaser or any of their Affiliates and based on such documents and information as it shall from time to time deem appropriate, continue to make its own decisions in taking or not taking action under or based upon this Agreement, any other Transaction Document or any related agreement or any document furnished hereunder or thereunder.

Section 9.6 Successor Purchaser Representative. Purchaser Representative may, at any time upon [***] prior notice of its resignation to the Purchasers and the Company, resign as Purchaser Representative. Upon receipt of any such notice of resignation, the Purchasers shall have the right to appoint a successor Purchaser Representative. Upon the acceptance of a successor’s appointment as Purchaser Representative hereunder and notice of such acceptance to the resigning Purchaser Representative, such successor shall succeed to and become vested with all of the rights, powers, privileges and duties of the resigning (or resigned) Purchaser Representative; the resigning Purchaser Representative’s resignation shall become immediately effective and the resigning Purchaser Representative shall be discharged from all of its duties and obligations hereunder and under the other Transaction Documents. If no such successor shall have been so appointed by the Purchasers and shall have accepted such appointment within [***] after the resigning Purchaser Representative gives notice of its resignation, then the resigning Purchaser Representative, from and following the expiration of such [***] period, shall have the exclusive

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right, upon [***] notice to the Company and the Purchasers, to make its resignation effective immediately.

ARTICLE X

MISCELLANEOUS

Section 10.1 Amendments; No Waivers. Neither this Agreement nor any term or provision hereof may be amended, supplemented, restated, waived, changed or modified except with the written consent of the Company and the Purchaser Representative (acting for itself and for the Purchasers).

Section 10.2 Notices. All notices and other communications under this Agreement to a party hereto shall be in writing and shall be sent by email with PDF attachment, internationally recognized overnight delivery service or personal delivery to the following address of such party, or to such other address as shall be designated from time to time by such party in accordance with this Section 10.2:

(a) If to Company:

c/o Spero Therapeutics, Inc.

675 Massachusetts Avenue

14th Floor

Cambridge, MA 02139

Attention: Esther Rajavelu

Email: [***]

With a copy (which shall not constitute notice) to:

WilmerHale

60 State Street

Boston, MA 02109

Attention: George W. Shuster Jr.; Nathan J. Moore

Email: george.shuster@wilmerhale.com; nathan.moore@wilmerhale.com

(b) If to Purchaser or the Purchaser Representative:

c/o HCRX Investments HoldCo, L.P.

300 Atlantic Street, Suite 600

Stamford, CT 06901

Attention: [***]

Email: [***]

with a copy (which shall not constitute notice) to:

c/o HCRX Investments HoldCo, L.P.

300 Atlantic Street, Suite 600

Stamford, CT 06901

Attention: Chief Legal Officer

Email: [***]

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and with a copy (which shall not constitute notice) to:

Sidley Austin LLP

2850 Quarry Lake Drive, Suite 301

Baltimore, MD 21209

Attention: [***]

Email: [***]

Any Party may change its address for the receipt of notices at any time by giving notice thereof to the other Party. Except as otherwise provided herein, any notice authorized or required to be given by this Agreement shall be effective when received.

Section 10.3 No Waiver; Cumulative Remedies; Enforcement. No failure or delay by either Party hereto in exercising any right, power or privilege hereunder shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege. No notice to or demand on either Party hereto in any case shall entitle it to any notice or demand in similar or other circumstances. No waiver or approval hereunder shall, except as may otherwise be stated in such waiver or approval, be applicable to subsequent transactions. No waiver or approval hereunder shall require any similar or dissimilar waiver or approval thereafter to be granted hereunder. The rights and remedies herein provided shall be cumulative and not exclusive of any rights or remedies provided by Applicable Law.

Notwithstanding anything to the contrary contained herein or in any other Transaction Document, the authority to enforce rights and remedies hereunder and under the other Transaction Documents against the Company shall be vested exclusively in, and all actions and proceedings at law in connection with such enforcement shall be instituted and maintained exclusively by, the Purchasers and the Purchaser Representative for the benefit of all the Secured Parties; provided, however, that, the foregoing shall not prohibit (a) the Purchaser Representative from exercising on its own behalf the rights and remedies that inure to its benefit (solely in its capacity as Purchaser Representative) hereunder and under the other Transaction Documents, (b) any Purchaser from exercising Set-Off rights in accordance with Section 10.5, or (c) any Purchaser from filing proofs of claim or appearing and filing pleadings on its own behalf during the pendency of a proceeding relative to the Company under any Debtor Relief Law.

Section 10.4 Expenses; Indemnity.

(a) Expenses. The Company shall pay, promptly following written demand therefor (i) all reasonable and documented out-of-pocket expenses incurred by the Purchaser Representative or any of its Affiliates or any Purchaser or any of their respective Affiliates in connection with any amendments, modifications or waivers of the provisions of this Agreement or any other Transaction Document (whether or not the transactions contemplated hereby or thereby shall be consummated) or the administration of this Agreement and the other Transaction Documents (including any amendment, restatement, amendment and restatement, supplement or other modification of the Transaction Documents) and (ii) all reasonable and documented out-of-pocket expenses incurred by the Purchaser Representative or any Purchaser (including the fees, charges and disbursements of any counsel for the Purchaser Representative or any Purchaser), in connection with the enforcement or protection of its rights in connection with this Agreement and the other Transaction Documents, including its rights under this Section 10.4, or (B) except as otherwise set forth herein, in connection with the payment of the Purchase Price made hereunder, including all such out-of-pocket expenses incurred during any workout, restructuring or negotiations in respect of such payment of the Purchase Price and transfer of the Purchased Proceeds and proceeds thereof to the Purchasers.

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(b) General Indemnity. From and after the Closing and without duplication of any amounts owing by the Company or any Third Party under any other Transaction Documents:

(i) The Company agrees to indemnify, defend and hold harmless the Purchaser Representative, the Purchasers and their respective Affiliates and its and their directors, managers, trustees, officers, agents and employees (the “Purchaser Indemnified Parties”) from, against and in respect of all Losses suffered or incurred by the Purchaser Indemnified Parties to the extent arising out of or resulting from (A) any breach of any of the representations or warranties of the Company in this Agreement, (B) any breach of any of the covenants or agreements of the Company in this Agreement, (C) any Third Party Claim arising out of or resulting from the Purchased Proceeds or proceeds thereof, and (D) any Excluded Liabilities and Obligations; provided, that, for the avoidance of doubt, other than in the case of the foregoing clause (D), the Company shall not be obligated to indemnify, defend or hold harmless the Purchaser Indemnified Parties in respect of Losses to the extent arising out of or resulting from (i) the gross negligence or willful misconduct of a Purchaser Indemnified Party, (ii) a breach by a Purchaser Indemnified Party of this Agreement, (iii) any claim, action, suit, inquiry, litigation, investigation or proceeding that does not involve an act or omission of Holdings or the Company and that is brought by a Purchaser Indemnified Party against any other Purchaser Indemnified Party or (iv) a decline in sales of any Licensed Product due to factors (including an Insolvency Event (as defined in the NPA) of GSK) that are not attributable to the acts or omissions of the Company or its Affiliates that constitute a breach or default under the Transaction Documents.

(ii) Each of the Purchaser Representative and the Purchasers hereby agree (severally and not jointly) to indemnify, defend and hold harmless the Company and its directors, officers, agents and employees (the “Company Indemnified Parties”) from, against and in respect of all Losses suffered or incurred by the Company Indemnified Parties to the extent arising out of or resulting from (A) any breach of any of the representations or warranties of the Purchaser Representative or such Purchaser in this Agreement and (B) any breach of any of the covenants or agreements of the Purchaser Representative or such Purchaser in this Agreement.

Notwithstanding the foregoing, (1) the Company will have no obligation to indemnify any Purchaser Indemnified Party to the extent that any Losses result from or arise out of any matters for which such Purchaser Indemnified Party is obligated to indemnify the Company Indemnified Party under Section 10.4(b)(ii) and (2) the Purchaser Representative and the Purchasers will have no obligation to indemnify the Company Indemnified Party to the extent that any Losses result from or arise out of any matters for which the Company is obligated to indemnify any Purchaser Indemnified Party under Section 10.4(b)(i).

(c) Claims Procedures.

(i) If either a Purchaser Indemnified Party, on the one hand, or a Company Indemnified Party, on the other hand (such Purchaser Indemnified Party on the one hand and such Company Indemnified Party on the other hand being hereinafter referred to as an “Indemnified Party”), has suffered or incurred any Losses for which indemnification may be sought under this Section 10.4, the Indemnified Party shall so notify the other Party from whom indemnification is sought under this Section 10.4 (the “Indemnifying Party”) promptly in writing describing such Loss, the amount or estimated amount thereof, if known or reasonably capable of estimation, and the method of computation of such Loss, all with reasonable particularity and containing a reference to the provisions of this Agreement in respect of which such Loss shall have occurred. If any claim, action, suit or proceeding is asserted or instituted by or against a Third Party with respect to which an Indemnified Party intends to claim any Loss under this Section 10.4 (a “Third Party Claim”),

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such Indemnified Party shall promptly notify the Indemnifying Party of such Third Party Claim and tender to the Indemnifying Party the defense of such Third Party Claim. A failure by an Indemnified Party to give notice and to tender the defense of such Third Party Claim in a timely manner pursuant to this Section 10.4(c) shall not limit the obligation of the Indemnifying Party under this Section 10.4, except to the extent such Indemnifying Party is actually prejudiced thereby.

(ii) The Indemnifying Party will be entitled to participate in the defense of any Third Party Claim that is the subject of a notice given by or on behalf of any Indemnified Party pursuant to Section 10.4(c)(i). In addition, the Indemnifying Party will have the right to defend the Indemnified Party against the Third Party Claim with counsel of its choice reasonably satisfactory to the Indemnified Party so long as (i) the Indemnifying Party gives written notice that they or it will defend the Third Party Claim to the Indemnified Party within [***] after the Indemnified Party has given notice of the Third Party Claim under Section 10.4(c)(i) stating that the Indemnifying Party will, and thereby covenants to, indemnify, defend and hold harmless the Indemnified Party from and against the entirety of any and all Losses the Indemnified Party may suffer resulting from, arising out of, relating to, in the nature of, or caused by the Third Party Claim, (ii) the Third Party Claim involves only money damages and does not seek an injunction or other equitable relief, (iii) the Indemnified Party has not been advised by counsel that an actual or potential conflict exists between the Indemnified Party and the Indemnifying Party in connection with the defense of the Third Party Claim and (iv) the Third Party Claim does not relate to or otherwise arise in connection with any criminal action, suit, investigation or proceeding.

(iii) The Indemnifying Party will not consent to the entry of any Judgment or enter into any compromise or settlement with respect to the Third Party Claim without the prior written consent of the Indemnified Party (which consent will not be unreasonably withheld, conditioned or delayed) unless such Judgment, compromise or settlement (i) provides for the payment by the Indemnifying Party of money as sole relief for the claimant, (ii) results in the general release of all Indemnified Parties and its Affiliates from all liabilities arising or relating to, or in connection with, the Third Party Claim, and (iii) involves no finding or admission of any violation of law or the rights of any Person and no effect on any other claims that may be made against the Indemnified Party or any of its Affiliates.

(iv) If the Indemnifying Party does not deliver the notice contemplated by Section 10.4(c)(i), within [***] after the Indemnified Party has given notice of the Third Party Claim pursuant to Section 10.4(c)(i), or otherwise at any time fails to conduct the defense of the Third Party Claim diligently, the Indemnified Party may defend, and may consent to the entry of any Judgment or enter into any compromise or settlement with respect to, the Third Party Claim in any manner it may deem appropriate following consultation with the Indemnifying Party in connection therewith. If such notice and evidence is given on a timely basis and the Indemnifying Party conducts the defense of the Third Party Claim diligently but any of the other conditions in Section 10.4(c)(ii) is or becomes unsatisfied, the Indemnified Party may defend, and may consent to the entry of any Judgment or enter into any compromise or settlement with respect to, the Third Party Claim; provided, that the Indemnifying Party will not be bound by the entry of any such Judgment consented to, or any such compromise or settlement effected, without its prior written consent (which consent will not be unreasonably withheld, conditioned or delayed).

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(d) Limitations on Liability; Time for Claims.

(i) Except for claims arising from a breach of confidentiality obligations under Section 10.7 or in cases of fraud, bad faith or willful misconduct, no Party shall be liable for any consequential, punitive, special or incidental damages under this Section 10.4 (and no claim for indemnification hereunder shall be asserted) as a result of any breach or violation of any covenant or agreement of such Party (including under this Section 10.4) in or pursuant to this Agreement. In connection with the foregoing, the Parties acknowledge and agree that (A) the Purchasers’ damages, if any, for any such action or claim will typically include Losses for the payment of the Purchased Proceeds and proceeds thereof that the Purchaser Representative and Purchasers were entitled to receive or would have received absent such breach, as well as expenses incurred in connection with enforcement of this Agreement and the other Transaction Documents, and (B) the Purchaser Representative and the Purchasers shall be entitled to make claims for all such missing, delayed or diminished payments in respect of the Purchased Proceeds and proceeds thereof as Losses hereunder, and such missing, delayed or diminished payments of in respect of the Purchased Proceeds and proceeds thereof shall not be deemed consequential, punitive, special, indirect or incidental damages.

(ii) Subject to the last sentence of this clause (d)(ii), notwithstanding anything else to the contrary herein, the Purchasers’ aggregate liability in respect of claims for indemnification pursuant to Section 10.4(b)(ii)(A) will not exceed the Purchase Price. The limitations under this clause (d)(ii) shall not apply to any claim for indemnification hereunder in the case of fraud, bad faith, willful misconduct or the misappropriation, conversion or intentional misapplication of any Retained Excess Proceeds.

(iii) No claim may be made or suit instituted seeking indemnification pursuant to Section 10.4(b)(i)(A) or Section 10.4(b)(ii)(A) unless a written notice is provided to the Company or Purchaser Representative, as applicable, prior to the date that is (A) [***] following the First Payment Date with respect to breach of any Fundamental Representation, and (B) [***] following the First Payment Date with respect to breach of any other representation or warranty. No claim may be made or suit instituted seeking indemnification pursuant to any other provision of Section 10.4(b)(i)(B) or Section 10.4(b)(ii)(B) unless a written notice is provided to the Company or Purchaser Representative, as applicable, prior to the date that is the later of (1) [***] following the First Payment Date or (2) [***] following the Party that is bringing the claim having knowledge of the occurrence of the event giving rise to such claim for indemnification under such other provision; provided that such date shall in no event be later than the last day of the Payment Term (except with respect to any payments invalidated, declared to be fraudulent or preferential, set aside or required to be repaid to a trustee, receiver or any other party, under any bankruptcy act or code, state or federal law, common law or equitable doctrine).

(e) Tax Treatment of Indemnification Payments. For all purposes hereunder, any indemnification payments made pursuant to this Section 10.4 will be treated as an adjustment to the Purchase Price for all Tax purposes to the fullest extent permitted by Applicable Law.

Section 10.5 Payments Set Aside. To the extent that any payment by or on behalf of the Company is made to the Purchaser Representative or any Purchaser, or the Purchaser Representative or any Purchaser exercises its right of Set-Off, and such payment or the proceeds of such Set-Off or any part thereof is subsequently invalidated, declared to be fraudulent or preferential, set aside or required (including pursuant to any settlement entered into by the Purchaser Representative or such Purchaser in its discretion) to be repaid to a trustee, receiver or any other party, in connection with any proceeding under any Debtor Relief Law or otherwise, then

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(a) to the extent of such recovery, the obligation or part thereof originally intended to be satisfied shall be revived and continued in full force and effect as if such payment had not been made or such Set-Off had not occurred, and (b) each Purchaser severally agrees to pay to the Purchaser Representative upon demand its applicable share (without duplication) of any amount so recovered from or repaid by the Purchaser Representative, plus interest thereon from the date of such demand to the date such payment is made at a rate per annum equal to the Federal Funds Rate from time to time in effect. The obligations of the Purchasers under clause (b) of the preceding sentence shall survive the payment in full of all Obligations and the termination of this Agreement and the other Transaction Documents.

Section 10.6 Assignment. The Company may not assign in whole or in part this Agreement, any of their rights or obligations hereunder, or any of their rights in the Licensed Products, the GSK License Agreement, Meiji License Agreement, the Back-up Collateral or the IP Rights, without the Purchaser Representative’s prior written consent, provided that the Company may assign the Retained Excess Proceeds and any proceeds thereof as part of a Permitted Royalty Monetization without the Purchaser Representative’s prior written consent. The Purchaser Representative and each Purchaser may at any time assign this Agreement in whole or in part to any Person, including to any Third Party or to one or more of its Affiliates. This Agreement shall be binding upon, inure to the benefit of and be enforceable by, the Parties and their respective permitted successors and assigns. Any purported assignment of rights or obligations in violation of this Section 10.6 will be void.

Section 10.7 Treatment of Certain Information; Confidentiality. Each Party agrees that, during the term of this Agreement and for [***] thereafter, it shall maintain the confidentiality of the Information (as defined below), except that Information may be disclosed (a) to its Affiliates and to its Related Parties (it being understood that the Persons to whom such disclosure is made will be informed of the confidential nature of such Information and instructed to keep such Information confidential), (b) to the extent required or requested by any regulatory authority purporting to have jurisdiction over such Person or its Related Parties (including any self-regulatory authority, such as the National Association of Insurance Commissioners), (c) to the extent required by applicable laws or regulations or by any subpoena or similar legal process, (d) to any other Party, (e) as may be reasonably necessary in connection with the exercise of any remedies hereunder or under any other Transaction Document or any action or proceeding relating to this Agreement or any other Transaction Document or the enforcement of rights hereunder or thereunder, (f) subject to an agreement containing provisions substantially the same as those of this Section 10.7, to (i) any assignee of or participant in, or any prospective assignee of or participant in, any of its rights and obligations under this Agreement or the Purchased Proceeds (in the case of the Purchaser Representative), (ii) any actual or prospective party (or its Related Parties) to any swap, derivative or other transaction under which payments are to be made by reference to the Company and its obligations, this Agreement or payments hereunder or (iii) any financing sources of such Party, (g) on a confidential basis to (i) any rating agency in connection with rating the Company or the advances of the Purchase Price to be made hereunder or (ii) the CUSIP Service Bureau or any similar agency in connection with the issuance and monitoring of CUSIP numbers or other market identifiers with respect to the credit facilities provided hereunder, (h) with the consent of the Company, (i) in the case of the Purchaser Representative and the Purchasers, to the members of its investment committee (it being understood that the Persons to whom such disclosure is made will be informed of the confidential nature of such Information and instructed to keep such Information confidential), (j) for tax or audit purposes, (k) to any actual or potential investors, members, and partners of the Purchaser Representative, any Purchaser or their Affiliates (it being understood that the Persons to whom such disclosure is made will be informed of the confidential nature of such Information and instructed to keep such Information confidential) or (l) to the extent

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such Information (i) becomes publicly available other than as a result of a breach of this Section 10.7 or (ii) becomes available to the Purchaser Representative, any Purchaser or any of their respective Affiliates on a nonconfidential basis from a source other than the Company.

For purposes of this Section 10.7, “Information” means all information furnished to a Party (the “Receiving Party”) by or on behalf of the other Parties (the “Disclosing Party”) pursuant to this Agreement, other than any such information that is available to the Receiving Party on a nonconfidential basis prior to disclosure by such Disclosing Party; provided, that, in the case of information received from the Company or any Subsidiary after the Effective Date, such information is clearly identified at the time of delivery as confidential. Any Person required to maintain the confidentiality of Information as provided in this Section 10.7 shall be considered to have complied with its obligation to do so if such Person has exercised the same degree of care to maintain the confidentiality of such Information as such Person would accord to its own confidential information.

Section 10.8 Counterparts; Effectiveness. This Agreement may be executed in counterparts (and by different Parties hereto in different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute a single contract. Except as provided in Article IV, this Agreement shall become effective when it shall have been executed by the Purchaser Representative and when the Purchaser Representative shall have received counterparts hereof that, when taken together, bear the signatures of each of the other Parties hereto. Delivery of an executed counterpart of a signature page of this Agreement by electronic imaging means (e.g., “pdf” or “tif”) shall be effective as delivery of a manually executed counterpart of this Agreement.

Section 10.9 Survival of Representations and Warranties. All representations and warranties made hereunder and in any other Transaction Document or other document delivered pursuant hereto or thereto or in connection herewith or therewith shall survive the execution and delivery hereof and thereof and shall continue in full force until (a) [***] following the First Payment Date with respect to Fundamental Representations, and (b) [***] following the First Payment Date with respect to all other representations and warranties. Such representations and warranties have been or will be relied upon by the Purchaser Representative and each Purchaser, regardless of any investigation made by the Purchaser Representative or any Purchaser or on their behalf and notwithstanding that the Purchaser Representative or any Purchaser may have had notice or knowledge of any default at the time of Closing, and shall continue in full force and effect throughout the Payment Term.

Section 10.10 Severability. If any provision of this Agreement or the other Transaction Documents is held to be illegal, invalid or unenforceable, (a) the legality, validity and enforceability of the remaining provisions of this Agreement and the other Transaction Documents shall not be affected or impaired thereby and (b) the parties shall endeavor in good faith negotiations to replace the illegal, invalid or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the illegal, invalid or unenforceable provisions. The invalidity of a provision in a particular jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

Section 10.11 Governing Law; Jurisdiction; Etc.

(a) GOVERNING LAW. THIS AGREEMENT AND THE OTHER TRANSACTION DOCUMENTS (EXCEPT, AS TO ANY OTHER TRANSACTION DOCUMENT, AS EXPRESSLY SET FORTH THEREIN) AND ANY CLAIMS, CONTROVERSY, DISPUTE OR CAUSE OF ACTION (WHETHER IN CONTRACT OR TORT OR OTHERWISE) BASED UPON, ARISING

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OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER TRANSACTION DOCUMENT (EXCEPT, AS TO ANY OTHER TRANSACTION DOCUMENT, AS EXPRESSLY SET FORTH THEREIN) AND THE TRANSACTIONS CONTEMPLATED HEREBY AND THEREBY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

(b) SUBMISSION TO JURISDICTION. THE COMPANY IRREVOCABLY AND UNCONDITIONALLY AGREES THAT IT WILL NOT COMMENCE ANY ACTION, LITIGATION OR PROCEEDING OF ANY KIND OR DESCRIPTION, WHETHER IN LAW OR EQUITY, WHETHER IN CONTRACT OR IN TORT OR OTHERWISE, AGAINST THE PURCHASER REPRESENTATIVE, ANY PURCHASER OR ANY RELATED PARTY OF THE FOREGOING IN ANY WAY RELATING TO THIS AGREEMENT OR ANY OTHER TRANSACTION DOCUMENT OR THE TRANSACTIONS RELATING HERETO OR THERETO, IN ANY OTHER FORUM OTHER THAN THE COURTS OF THE STATE OF NEW YORK AND ANY UNITED STATES DISTRICT COURT IN THE STATE OF NEW YORK, AND ANY APPELLATE COURT FROM ANY THEREOF LOCATED IN NEW YORK COUNTY, NEW YORK, AND EACH OF THE PARTIES HERETO IRREVOCABLY AND UNCONDITIONALLY SUBMITS TO THE JURISDICTION OF SUCH COURTS AND AGREES THAT ALL CLAIMS IN RESPECT OF ANY SUCH ACTION, LITIGATION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH NEW YORK STATE COURT OR, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN SUCH FEDERAL COURT. EACH OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN ANY SUCH ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER JURISDICTIONS BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER PROVIDED BY LAW. NOTHING IN THIS AGREEMENT OR IN ANY OTHER TRANSACTION DOCUMENT SHALL AFFECT ANY RIGHT THAT THE PURCHASER REPRESENTATIVE OR ANY PURCHASER MAY OTHERWISE HAVE TO BRING ANY ACTION OR PROCEEDING RELATING TO THIS AGREEMENT OR ANY OTHER TRANSACTION DOCUMENT AGAINST THE COMPANY OR THE COMPANY OR ITS PROPERTIES IN THE COURTS OF ANY JURISDICTION.

(c) WAIVER OF VENUE. THE COMPANY IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY OBJECTION THAT IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF VENUE OF ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER TRANSACTION DOCUMENT IN ANY COURT REFERRED TO IN CLAUSE (B) OF THIS SECTION 10.11. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, THE DEFENSE OF AN INCONVENIENT FORUM TO THE MAINTENANCE OF SUCH ACTION OR PROCEEDING IN ANY SUCH COURT.

(d) SERVICE OF PROCESS. EACH PARTY HERETO IRREVOCABLY CONSENTS TO SERVICE OF PROCESS IN THE MANNER PROVIDED FOR NOTICES IN SECTION 10.2. NOTHING IN THIS AGREEMENT WILL AFFECT THE RIGHT OF ANY PARTY HERETO TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY APPLICABLE LAW.

Section 10.12 Waiver of Right to Trial by Jury. EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER TRANSACTION DOCUMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES THAT NO

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REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PERSON HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PERSON WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT AND THE OTHER TRANSACTION DOCUMENTS BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 10.12.

Section 10.13 Electronic Execution; Electronic Records; Counterparts. This Agreement, any Transaction Document and any other Communication, including Communications required to be in writing, may be in the form of an Electronic Record and may be executed using Electronic Signatures. The Company and each of the Purchaser Representative and each Purchaser agrees that any Electronic Signature on or associated with any Communication shall be valid and binding on such Person to the same extent as a manual, original signature, and that any Communication entered into by Electronic Signature, will constitute the legal, valid and binding obligation of such Person enforceable against such Person in accordance with the terms thereof to the same extent as if a manually executed original signature was delivered. Any Communication may be executed in as many counterparts as necessary or convenient, including both paper and electronic counterparts, but all such counterparts are one and the same Communication. For the avoidance of doubt, the authorization under this paragraph may include, without limitation, use or acceptance of a manually signed paper “Communication” which has been converted into electronic form (such as scanned into .pdf format), or an electronically signed Communication converted into another format, for transmission, delivery and/or retention. The Purchaser Representative and each of the Purchasers may, at its option, create one or more copies of any Communication in the form of an imaged Electronic Record (“Electronic Copy”), which shall be deemed created in the ordinary course of such Person’s business, and destroy the original paper document. All Communications in the form of an Electronic Record, including an Electronic Copy, shall be considered an original for all purposes, and shall have the same legal effect, validity and enforceability as a paper record. Notwithstanding anything contained herein to the contrary, the Purchaser Representative is not under any obligation to accept an Electronic Signature in any form or in any format unless expressly agreed to by such Person pursuant to procedures approved by it; provided, that, without limiting the foregoing, (a) to the extent the Purchasers and the Purchaser Representative have agreed to accept such Electronic Signature, they shall be entitled to rely on any such Electronic Signature purportedly given by or on behalf of the Company and/or any Purchaser without further verification and (b) upon the request of the Purchaser Representative or any Purchaser, any Electronic Signature shall be promptly followed by such manually executed counterpart.

The Purchaser and the Purchaser Representative shall not be responsible for or have any duty to ascertain or inquire into the sufficiency, validity, enforceability, effectiveness or genuineness of any Transaction Document or any other agreement, instrument or document (including, for the avoidance of doubt, in connection with the Purchasers and the Purchaser Representative’s reliance on any Electronic Signature transmitted by telecopy, emailed .pdf or any other electronic means). The Purchaser and the Purchaser Representative shall be entitled to rely on, and shall incur no liability under or in respect of this Agreement or any other Transaction Document by acting upon, any Communication (which writing may be an electronic message, Internet or intranet website posting or other distribution or signed using an Electronic Signature) or any statement made to it orally or by telephone and reasonably believed by it to be genuine and signed or sent or otherwise authenticated (whether or not such Person in fact meets the requirements set forth in the Transaction Documents for being the maker thereof).

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The Company, the Purchaser Representative and each Purchaser hereby waives (i) any argument, defense or right to contest the legal effect, validity or enforceability of this Agreement, any other Transaction Document based solely on the lack of paper original copies of this Agreement, such other Transaction Document, and (ii) any claim against the Purchaser Representative, each Purchaser and each Related Party for any liabilities arising solely from the Purchaser Representative’s and/or any Purchaser’s reliance on or use of Electronic Signatures, including any liabilities arising as a result of the failure of the Company to use any available security measures in connection with the execution, delivery or transmission of any Electronic Signature.

Section 10.14 USA PATRIOT Act. Each Purchaser that is subject to the Act (as hereinafter defined) and the Purchaser Representative (for itself and not on behalf of any Purchaser) hereby notifies the Company that pursuant to the requirements of the USA PATRIOT Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)) (the “Act”), it is required to obtain, verify and record information that identifies the Company, which information includes the name and address of the Company and other information that will allow such Purchaser or the Purchaser Representative, as applicable, to identify the Company in accordance with the Act. The Company agrees to, promptly following a request by the Purchaser Representative or any Purchaser, provide all such other documentation and information that the Purchaser Representative or such Purchaser requests in order to comply with its ongoing obligations under applicable “know your customer” and anti-money laundering rules and regulations, including the Act.

Section 10.15 No Advisory or Fiduciary Relationship. In connection with all aspects of each transaction contemplated hereby (including in connection with any amendment, waiver or other modification hereof or of any other Transaction Document), the Company acknowledges and agrees, and acknowledges its Affiliates’ understanding, that: (a)(i) the arranging and other services regarding this Agreement provided by the Purchaser Representative and the Purchasers are arm’s-length commercial transactions between the Company and its Affiliates, on the one hand, and the Purchaser Representative and the Purchasers on the other hand, (ii) the Company has consulted its own legal, accounting, regulatory and tax advisors to the extent it has deemed appropriate, and (iii) the Company is capable of evaluating, and understands and accepts, the terms, risks and conditions of the transactions contemplated hereby and by the other Transaction Documents; (b)(i) the Purchaser Representative and each Purchaser is and has been acting solely as a principal and, except as expressly agreed in writing by the relevant parties, has not been, is not and will not be acting as an advisor, agent or fiduciary, for the Company or any of its Affiliates or any other Person and (ii) neither the Purchaser Representative nor any Purchaser has any obligation to the Company or any of its Affiliates with respect to the transactions contemplated hereby except those obligations expressly set forth herein and in the other Transaction Documents; and (c) the Purchaser Representative and the Purchasers and their respective Affiliates may be engaged in a broad range of transactions that involve interests that differ from those of the Company and its Affiliates, and neither the Purchaser Representative nor any Purchaser has any obligation to disclose any of such interests to the Company or its Affiliates. To the fullest extent permitted by law, the Company hereby waives and releases any claims that it may have against the Purchaser Representative or any Purchaser with respect to any breach or alleged breach of agency or fiduciary duty in connection with any aspect of any transaction contemplated hereby.

Section 10.16 Entire Agreement. This Agreement, together with the Exhibits hereto (which are incorporated herein by reference) and the other Transaction Documents, constitute the entire agreement among the Parties hereto with respect to the subject matter hereof and supersede all prior agreements, understandings and negotiations, both written and oral, among the Parties hereto with respect to the subject matter of this Agreement. No representation,

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inducement, promise, understanding, condition or warranty not set forth herein (or in the Exhibits hereto or the other Transaction Documents) has been made or relied upon by either Party hereto.

Section 10.17 No Third Party Rights. Other than the Parties, no Person will have any legal or equitable right, remedy or claim under or with respect to this Agreement. This Agreement may be amended or terminated, and any provision of this Agreement may be waived, without the consent of any Person who is not a Party. In respect of the rights of the Purchaser Indemnified Parties under Section 10.4, the Purchaser Representative shall enforce any legal or equitable right, remedy or claim under or with respect to this Agreement for the benefit of such Purchaser Indemnified Party.

Section 10.18 Table of Contents and Headings. The Table of Contents and headings of the Articles and Sections of this Agreement have been inserted for convenience of reference only, are not to be considered a part hereof and shall in no way modify or restrict any of the terms or provisions hereof.

Section 10.19 Public Announcement.

(a) As soon as reasonably practicable following the date hereof, one or both of the Company and the Purchaser Representative shall issue a mutually agreed to press release. Except as required by Applicable Law (including disclosure requirements of the SEC, the Nasdaq Stock Market or any other stock exchange on which securities issued by a Party or its Affiliates are traded) or for statements that are materially consistent with all or any portion of a previously approved public disclosure, neither Party shall make any other public announcement concerning this Agreement or the subject matter hereof without the prior written consent of the other Party, which shall not be unreasonably withheld, conditioned or delayed. In the event of a required public announcement, to the extent practicable under the circumstances, the Party making such announcement shall provide the other Party (which in the case of the Purchasers, shall be the Purchaser Representative) with a copy of the proposed text of such announcement sufficiently in advance of the scheduled release to afford such other Party a reasonable opportunity to review and comment upon the proposed text.

(b) The Parties shall coordinate in advance with each other in connection with the filing of this Agreement (including proposed redaction of certain provisions of this Agreement) with the SEC, the Nasdaq Stock Market or any other stock exchange or Governmental Authority on which securities issued by a Party or its Affiliate are traded, and each Party shall use reasonable efforts to seek confidential treatment for the terms of this Agreement proposed to be redacted. The Purchaser Representative acknowledges that it will be necessary for the Company to file this Agreement with the SEC and to make other public disclosures regarding the terms of this Agreement and payments made under this Agreement in its reports filed with the SEC and any registration statement it may file with the SEC, and the Company will provide the Purchaser Representative a reasonable opportunity to review and comment on (and request) any proposed redactions to the copy of this Agreement filed with the SEC as well as on such other public disclosures; provided that the Company shall not be required to provide the Purchaser Representative the opportunity to review and comment on any disclosure substantively identical to any disclosure previously reviewed and commented upon by the Purchaser Representative (except for disclosure of any previously redacted information). Other than such obligation, neither Party (nor its Affiliates) shall be obligated to consult with or obtain approval from the other Party with respect to any filings with the SEC, the Nasdaq Stock Market or any other stock exchange or Governmental Authority. For clarity, once a public announcement or other disclosure is made by a Party in accordance with this Section 10.19, then no further consent or compliance with this Section 10.19 shall be required for any substantially similar disclosure thereafter.

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Section 10.20 Specific Performance. Each of the Parties hereto acknowledges that the other Party hereto may not have adequate remedy at law if the other Party fails to perform any of its obligations under any of the Transaction Documents. In such event, each of the Parties hereto agrees that the other Party hereto shall have the right, in addition to any other rights it may have (whether at law or in equity), to seek specific performance of this Agreement and the other Transaction Documents without the necessity of posting a bond or proving the inadequacy of monetary damages as a remedy and to seek injunctive relief against any breach or threatened breach of the Transaction Documents. The Parties further agree not to assert that a remedy of specific performance is unenforceable, invalid, contrary to Applicable Law or inequitable for any reason.

Section 10.21 Limited Recourse; Disposition of Retained Excess Proceeds. For the avoidance of doubt and notwithstanding anything else to the contrary in this Agreement or the other Transaction Documents, other than as set forth in the Parent Guaranty (as defined in the NPA), all Obligations shall be payable hereunder solely from the Purchased Proceeds, or, to the extent permitted hereunder, from proceeds of Back-up Collateral. Notwithstanding anything else to the contrary in this Agreement or the other Note Documents, the Company and the Parent shall be permitted to enter into and consummate one or more Permitted Royalty Monetizations, and no such transfer shall result in a breach or default hereunder or any other Transaction Document.

[SIGNATURE PAGES FOLLOW]

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IN WITNESS WHEREOF, the Parties hereto have executed this Agreement as of the day and year first written above.

 

THE COMPANY:

 

 

SPERO SPV, LLC

 

 

 

 

By:

/s/ Esther Rajavelu

 

Name: Esther Rajavelu

 

Title: Chief Executive Officer, Chief Financial Officer and Treasurer

 

 


 

 

THE PURCHASERS:

 

 

HRBR 2025-2, LLC

 

 

By:

Global Atlantic Financial Company, as its Administrator

 

 

 

 

By:

/s/ Michael Morreale

 

Name: Michael Morreale

 

Title: Director

 

HCRX INVESTMENTS HOLDCO, L.P.

 

 

By:

HCRX Master GP, LLC

 

 

 

 

By:

/s/ Clarke B. Futch

 

Name: Clarke B. Futch

 

Title: Chairman & Chief Executive Officer

 

THE PURCHASER REPRESENTATIVE:

 

 

HCR SPERO SPV, LLC

 

 

 

 

By:

/s/ Clarke B. Futch

 

Name: Clarke B. Futch

 

Title: Authorized Signatory

 

 


Exhibit 10.7

Certain identified information has been excluded from the exhibit by marking such portions with brackets (“[***]”) because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential.

LIMITED RECOURSE GUARANTY

This LIMITED RECOURSE GUARANTY (this “Agreement”) dated as of July 8, 2026, is made by SPERO THERAPEUTICS, INC., a Delaware corporation (the “Guarantor”), in favor of HCR SPERO SPV, LLC, together with its successors and assigns, in its capacities as NPA Representative and RPA Representative for the benefit of the Note Purchasers and RPA Purchasers, respectively (in such capacities, the “Agent”). Capitalized terms used herein and not otherwise defined herein shall have the meanings set forth in the Note Purchase Agreement, Royalty Purchase Agreement or Issuer Contribution Agreement (each as defined below), as applicable; provided, that, if a term is defined in more than one such agreement, such term shall have the meaning assigned to it in the agreement expressly referenced herein or, if no agreement is expressly referenced, the meaning most consistent with the context and purpose of the provision in which such term is used.

RECITALS

WHEREAS, pursuant to that certain Note Purchase and Guaranty Agreement, dated as of the date hereof (the “Note Purchase Agreement”), by and among Spero SPV, LLC, a Delaware limited liability company (“Issuer”), Spero SPV Holdings, LLC, a Delaware limited liability company (“Holdings”), the Note Purchasers and the NPA Representative, as purchaser representative thereunder, the Note Purchasers have agreed to purchase senior secured notes from Issuer in an aggregate initial principal amount of one hundred and five million Dollars ($105,000,000) upon the terms and subject to the conditions set forth therein;

WHEREAS, pursuant to that certain Royalty and Milestone Payment Interest Purchase and Sale Agreement, dated as of the date hereof (the “Royalty Purchase Agreement”), by and among Issuer, the RPA Purchasers and the RPA Representative, as purchaser representative thereunder, the RPA Purchasers have agreed to purchase certain royalty and milestone payment interests from Issuer upon the terms and subject to the conditions set forth therein;

WHEREAS, (a) pursuant to that certain Sale, Contribution and Servicing Agreement, dated as of the date hereof (the “Issuer Contribution Agreement”), the Guarantor desires to sell and contribute to Issuer and Issuer desires to purchase and receive from the Guarantor, the Transferred Assets and (b) pursuant to that certain Holdings Equity Contribution Agreement, dated as of the date hereof (the “Holdings Contribution Agreement” and together with the Issuer Contribution Agreement, collectively, the “Contribution Agreements”), the Guarantor desires to sell and contribute to Holdings and Holdings desires to purchase and receive from the Guarantor, 100% of the Equity Interests in Issuer;

WHEREAS, following the consummation of the Transactions, the Guarantor shall directly own 100% of the issued and outstanding Equity Interests of Holdings, which in turn shall directly own 100% of the issued and outstanding Equity Interests of Issuer;

WHEREAS, Issuer intends to use all or a portion of the net proceeds from the issuance of the Notes under the Note Purchase Agreement to consummate the purchase and acquisition of the Transferred Assets under the Issuer Contribution Agreement and otherwise to finance all or a portion of the other Transactions (including the payment of fees, taxes and other expenses incurred in connection therewith);

 


 

WHEREAS, the Guarantor will derive substantial direct and indirect benefits from the consummation of the Transactions and has further determined that the benefits accruing therefrom exceed its anticipated liability under this Agreement; and

WHEREAS, it is a condition precedent to the obligation of the Note Purchasers to purchase the Notes under the Note Purchase Agreement and the obligation of the RPA Purchasers to purchase the Purchased Proceeds (as defined in the Royalty Purchase Agreement) under the Royalty Purchase Agreement that the Guarantor shall have executed and delivered this Agreement.

NOW, THEREFORE, in consideration of the promises set forth herein and for other good and valuable consideration and in order to induce the Note Purchasers to purchase the Notes and the RPA Purchasers to purchase the Purchased Proceeds, the Guarantor hereby agrees as follows:

ARTICLE I

Definitions and Rules of Construction

Section 1.01 Definitions. As used in this Agreement, the following terms have the meanings set forth in or incorporated by reference below:

Agent” has the meaning set forth in the preamble hereto.

Agreement” has the meaning set forth in the preamble hereto.

Bankruptcy Event” has the meaning set forth in the Royalty Purchase Agreement.

Change of Control” means any event that constitutes a “Change of Control” under the Note Purchase Agreement or the Royalty Purchase Agreement, as the context requires.

Collection Account” has the meaning set forth in the Note Purchase Agreement or the Royalty Purchase Agreement, as applicable.

Company Parties” and “Company Party” have the meanings set forth in the Royalty Purchase Agreement.

Contribution Agreements” has the meaning set forth in the recitals hereto.

Covered Documents” means, collectively, the Note Documents and the RPA Transaction Documents.

Default” means (a) any “Default” as defined in the Note Purchase Agreement and (b) any condition, event or circumstance that, with the giving of notice, the lapse of time or both, would constitute an Event of Default under this Agreement.

Designated Party” and “Designated Parties” mean, individually or collectively as the context requires, the Guarantor, Holdings, Issuer, any of their respective Subsidiaries and any of their respective senior officers.

Designated Transactions” means, collectively, the issuance of the Notes and the use of proceeds thereof, compliance with the Notes and the other Note Documents, the RPA Transaction Documents, the GSK Agreement (including the calculation and making of payments in respect thereof), any Material Contract, the Collateral and the other Transactions.

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Event of Default” means (a) any “Event of Default” as defined in the Note Purchase Agreement and (b) any breach, default or failure to perform by Issuer, Holdings, the Guarantor, any Company Party or the Servicer under the Royalty Purchase Agreement or any other RPA Transaction Document which, in each case under this clause (b), remains uncured after the expiration of any applicable notice or cure period expressly provided therein, if any.

Final Discharge Date” means the later of (a) Payment in Full and (b) the RPA End Date; provided, that, in each case, all Guaranteed Obligations then due and payable have been paid in full in cash, other than indemnification, reimbursement, expense and other contingent obligations not then due and payable, and subject to reinstatement pursuant to Section 6.01.

GSK Agreement” has the meaning set forth in the Note Purchase Agreement; provided, that, when used with respect to the Royalty Purchase Agreement, “GSK Agreement” means the GSK License Agreement as defined therein and, in each case, shall include any New Arrangement.

GSK Development Payment” means the amounts owed by Issuer to GSK pursuant to Section 4.1(a)(ii) of the GSK Agreement with respect to GSK’s [***] related to the development of Tebipenem Pivoxil Hydrobromide, which amounts are estimated to be USD $[***].

Guarantee” has the meaning set forth in Section 2.01.

Guaranteed Obligations” has the meaning set forth in Section 2.02.

Guaranteed Obligations Cap” means, with respect to Guaranteed Obligations, an amount equal to the sum of (i) $105.0 million dollars, plus (ii) accrued and unpaid interest on the Notes, plus (iii) costs, expenses and collection and enforcement costs payable by the Guarantor under Section 6.12(c), plus (iv) the fair market value (as determined by a mutually agreeable neutral third party) of the Purchased Proceeds as of the time any payment of Guaranteed Obligations is due and owing hereunder; provided that the foregoing amount shall not exceed (x) $[***] minus (y) all payments (other than payments pursuant Section 2.02(d)(ii)) received by the NPA Representative, the RPA Representative or the Purchasers under this Agreement the other Covered Documents; provided, further that, notwithstanding anything to the contrary, the foregoing cap (or the calculation thereof) shall not apply to the amount of any GSK Proceeds or Purchased Proceeds the NPA Representative or any other NPA Secured Party or the RPA Representative or any other RPA Secured Party was entitled to receive under the Note Documents or the RPA Documents that have been misdirected, misappropriated, converted or the amount of which was intentionally misapplied or miscalculated.

Guarantor” has the meaning set forth in the preamble hereto.

Holdings” has the meaning set forth in the recitals hereto.

Holdings Contribution Agreement” has the meaning set forth in the recitals hereto.

Indemnified Liabilities” means, collectively, Indemnified Liabilities as defined in the Note Purchase Agreement and Losses for which a Purchaser Indemnified Party may be entitled to indemnification under the Royalty Purchase Agreement.

Indemnitee” and “Indemnitees” mean, individually or collectively as the context requires, the Agent, each Note Purchaser, each Note Secured Party, the RPA Representative, each RPA Purchaser, each RPA Secured Party and each of their respective Affiliates, partners, directors, officers, employees, agents, trustees, administrators, managers, advisors, counsel, sub-advisors and representatives.

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Insolvency Event” has the meaning set forth in the Note Purchase Agreement.

Issuer” has the meaning set forth in the recitals hereto.

Issuer Contribution Agreement” has the meaning set forth in the recitals hereto.

Maximum Lawful Rate” has the meaning set forth in the Note Purchase Agreement.

Meiji Milestone Payment” has the meaning set forth in the Royalty Purchase Agreement

NPA Representative” means HCR SPERO SPV, LLC, together with its successors and assigns, in its capacity as purchaser representative under the Note Purchase Agreement.

Note Documents” has the meaning set forth in the Note Purchase Agreement.

Note Obligations” means the “Obligations” as defined in the Note Purchase Agreement.

Note Purchase Agreement” has the meaning set forth in the recitals hereto.

Note Purchasers” and “Note Purchaser” mean the Purchasers from time to time party to the Note Purchase Agreement, collectively or individually as the context requires.

Note Secured Parties” and “Note Secured Party” mean the NPA Secured Party, for the benefit of the Note Purchasers, each as defined in the Security Agreement, collectively or individually as the context requires.

Obligations” means, collectively, the Note Obligations and the RPA Obligations.

Obligor” has the meaning set forth in Section 2.01.

Party” and “Parties” mean the Guarantor and the Agent, individually and collectively.

Payment in Full” means, with respect to the Note Obligations, “Payment in Full” as defined in the Note Purchase Agreement.

Permitted Royalty Monetization” has the meaning set forth in the Note Purchase Agreement or the Royalty Purchase Agreement, as applicable.

Post-Petition Interest” has the meaning set forth in Section 5.01(b)(ii).

Purchasers” and “Purchaser” mean, collectively or individually as the context requires, the Note Purchasers, the RPA Purchasers or both.

Royalty Purchase Agreement” has the meaning set forth in the recitals hereto.

RPA End Date” means the expiration of the Payment Term under the Royalty Purchase Agreement.

RPA Obligations” means the “Obligations” as defined in the Royalty Purchase Agreement which, for the avoidance out doubt, shall include the Losses (as defined in the Royalty Purchase Agreement and after giving effect to Section 9.4(d) thereof).

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RPA Purchasers” and “RPA Purchaser” have the meanings set forth in the recitals hereto, collectively or individually as the context requires.

RPA Representative” means HCR SPERO SPV, LLC, together with its successors and assigns, in its capacity as Purchaser Representative under the Royalty Purchase Agreement.

RPA Secured Parties” and “RPA Secured Party” mean the RPA Secured Party, for the benefit of the Royalty Purchasers, as defined in the Security Agreement, collectively or individually as the context requires.

RPA Transaction Documents” means the Transaction Documents as defined in the Royalty Purchase Agreement.

Secured Parties” and “Secured Party” mean, collectively or individually as the context requires, the Note Secured Parties, the RPA Secured Parties or both.

Subordinated Obligations” has the meaning set forth in Section 5.01(b).

Taxes” means all present and future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments or similar fees or other charges imposed by any governmental entity, including any related interest, additions to tax or penalties applicable thereto.

Transaction Documents,” when used without an express reference to the Royalty Purchase Agreement, means the Note Documents and the RPA Transaction Documents, as the context requires.

Transferred Assets” means, collectively, all of the assets of Holdings and Issuer.

ARTICLE II

Nature and Scope of Guaranty

Section 2.01 Guarantee of Obligations. The Guarantor hereby irrevocably, absolutely and unconditionally guarantees (the “Guarantee”) as a primary obligor and not merely as a surety, the due and punctual payment in full, in cash, of the Guaranteed Obligations as and when the same shall be due and payable, whether such Guaranteed Obligations are now existing or hereafter incurred, and whether at the stated maturity, by acceleration, upon one or more dates set for repayment or prepayment or otherwise. If Issuer, Holdings or any other Person now or hereafter liable for amounts due under the Note Obligations, RPA Obligations or the Guaranteed Obligations (each such other Person, an “Obligor”) fails to pay or cause to be paid any Guaranteed Obligation as and when the same shall be due and payable, whether at the stated maturity, by acceleration, upon one or more dates set for repayment or prepayment or otherwise, the Guarantor agrees to pay the amount of such unpaid Guaranteed Obligations to the Agent.

Section 2.02 Definition of Guaranteed Obligations. As used herein, the term “Guaranteed Obligations” means all of the following, subject, in each case, to Section 2.02(d):

(a)
any and all actual liabilities, obligations, losses, damages, fines, penalties, claims, costs, expenses, Taxes, actions (whether threatened or existing), judgments, suits (whether threatened or existing) and disbursements of any kind or nature whatsoever (including the out-of-pocket fees and disbursements of counsel, experts, consultants and other professionals), and any missing, delayed, diminished or misdirected GSK Proceeds, Purchased Proceeds or other amounts that the Agent, any Note Secured Party or any RPA Secured Party was entitled to receive, whether

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based on any federal, state or foreign laws, statutes, rules or regulations (including securities and commercial laws, statutes, rules or regulations), on common law or equitable causes or on contract or otherwise, in each case excluding special, indirect, consequential, punitive or any other damages not constituting actual damages, and in each case to the extent resulting from, or arising out of or in connection with any of the following:
(i)
fraud, malfeasance, gross negligence, willful misconduct or intentional misrepresentation or omission by any Designated Party resulting from, or arising out of or in connection with the Designated Transactions;
(ii)
the misappropriation or conversion, or intentional misapplication or miscalculation, by or on behalf of any Designated Party of (A) any GSK Proceeds and/or any component parts thereof, proceeds of insurance and/or Purchased Proceeds and/or any component parts thereof, (B) collections or other amounts derived from the operation, Commercialization or use of the Collateral, including in connection with a failure to deposit (or cause to be deposited) any and all such amounts into the Collection Account in accordance with the applicable Transaction Documents or (C) any other amounts otherwise payable to the Agent, any Note Secured Party or any RPA Secured Party under the Note Documents or the RPA Transaction Documents;
(iii)
the commission of a criminal act by any Designated Party related to the Designated Transactions;
(iv)
knowing, intentional or grossly negligent destruction, cancellation, abandonment, failure to maintain or waste of any of the Transferred Assets (including, without limitation, the IP Rights and all rights of any Designated Party under and with respect to the GSK Agreement (or New Arrangement), the Contribution Agreements and any Material Contract) by a Designated Party;
(v)
a breach in any material respect of any representation, warranty or covenant by any Designated Party in any Covered Document that is not cured within the relevant cure period set forth in any such Covered Document;
(vi)
the failure by Issuer to (A) discharge (at Issuer’s expense) Taxes due and owing by Issuer or Liens affecting any of the Collateral that have not been paid in violation of any Note Document or RPA Transaction Document or that jeopardize the Agent’s Lien priority in the Collateral; (B) make any other payment for the administration, servicing, maintenance, preservation or protection of the Collateral, in violation of any Note Document or RPA Transaction Document or (C) make any other payment to GSK or any Material Contract Counterparty (unless at the direction of the Indemnitee) that, if not paid, may result in a breach of the GSK Agreement or the applicable Material Contract, but excluding any payments in respect of any GSK Royalty Reductions (as defined in the GSK Agreement) payable by Issuer pursuant to Section 6.5 of the GSK Agreement;
(vii)
the failure by Company to maintain any insurance coverage required to be maintained pursuant to Section 8.08 of the Note Purchase Agreement or Section 10.8 of the GSK Agreement;

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(viii)
(A) any amendment of Holdings Organizational Documents or Issuer Organizational Documents other than as expressly permitted under the terms of the Note Purchase Agreement or Royalty Purchase Agreement, as applicable, or (B) the occurrence of a Change of Control without the prior written consent of the Agent;
(ix)
incurrence of Indebtedness by Issuer or Holdings other than to the extent permitted by the Note Purchase Agreement and the other Note Documents;
(x)
upon the (A) occurrence of any Servicer Termination Event with respect to the Servicer or (B) termination, cancellation or rescission of the Issuer Contribution Agreement, any (I) intentional, bad faith or grossly negligent failure of Issuer to appoint a successor servicer or replace the Issuer Contribution Agreement with a successor servicer or an agreement, as applicable, that is acceptable to the Agent in its sole discretion, (II) failure of Issuer or Guarantor (as outgoing Servicer) to use commercially reasonable efforts to transfer or cause the transfer of the servicing obligations under the Issuer Contribution Agreement to such successor servicer (including by providing information and assistance as may be reasonably required therefor), or (III) failure of Issuer or Guarantor (as outgoing Servicer) to reasonably cooperate with the Agent in connection with any such appointment, transfer or replacement made or requested by the Agent, in each case in accordance with the Note Purchase Agreement or applicable Note Document;
(xi)
(A) Issuer failing to be treated for U.S. federal or any applicable state and local income tax purpose as a disregarded entity owned by a U.S. Person or (B) Included Payments (as defined in the Note Purchase Agreement) or GSK Proceeds (as defined in the Royalty Purchase Agreement) becoming subject to withholding Tax as a result of the Issuer or the Guarantor failing to qualify for benefits under the income tax treaty between the United States and the United Kingdom; provided that this clause (B) shall not apply to any withholding Tax resulting from a determination by any applicable taxing authority that, solely as a result of the transactions occurring pursuant to the Transaction Documents, the Issuer is no longer the beneficial owner of the Included Payments; and provided further that any “Guaranteed Obligations” under this clause (B) of this subsection (xi) shall be limited to amounts that constitute Covered Taxes (as defined in the Note Purchase Agreement) or Indemnified Taxes (as defined in the Royalty Purchase Agreement) and, in each case, any related costs and expenses;
(xii)
the voluntary or consensual Disposition (including via investment), or commitment to Dispose, of a direct or indirect interest in Issuer or Holdings, in contravention of the Note Purchase Agreement, any other Note Document or the GSK Agreement;
(xiii)
GSK, or any other counterparty to a Covered Material Contract (as defined in the Issuer Contribution Agreement, exercises a Non-Permitted Set-Off against any GSK Proceeds, Purchased Proceeds or other funds payable to Issuer under the GSK Agreement or other applicable Covered Material Contract, in each case due to any payment obligation or other liability of GSK or such other Covered Material Contract counterparty by the Guarantor (whether or not in its capacity as Servicer);

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(xiv)
the failure by Issuer, Servicer or any other Designated Party to take any action necessary to defend, prosecute or otherwise maintain (with respect to Issuer, in the manner required by Section 8.12 of the Note Purchase Agreement, and with respect to Servicer, in the manner required by Section 4.01(j) of the Issuer Contribution Agreement) the Licensed Product, Intellectual Property and/or IP Rights of Issuer to the extent necessary for Issuer to continue performance under the GSK Agreement in the ordinary course of business in any material respect;
(xv)
the voluntary or consensual grant of, or the commitment to grant, a Lien (other than a Permitted Lien) on any Collateral in violation of the Note Purchase Agreement or any other Note Document or RPA Transaction Document by any Designated Party;
(b)
(i) all obligations of Issuer to prepare, execute, deliver and file or record any Collateral Document or comply with Sections 8.16 and 8.18 of the Note Purchase Agreement (or any analogous provision under the RPA Transaction Documents) and, to the extent of available amounts then on deposit in the Collection Account, to pay all costs associated therewith, including without limitation all taxes, costs and/or expenses related to the preparation, execution or delivery of such Collateral Documents to the proper Governmental Entity for recordation, any attorneys’ fees or fees for other professionals to the extent actually incurred in connection with the foregoing; and (ii) the payment of, or reimbursement to the Agent and/or Purchasers for, liabilities, obligations, losses, damages, fines, penalties, claims, costs, expenses and disbursements of any kind or nature whatsoever (including the reasonable fees and disbursements of counsel, experts, consultants and other professionals for the Agent), whether direct or actual (and, for the avoidance of doubt, any missing, delayed, diminished or misdirected GSK Proceeds, Purchased Proceeds or other amounts that the Agent, any Note Secured Party or any RPA Secured Party was entitled to receive shall be deemed direct damages and not special, indirect or consequential damages), resulting from, or arising out of or in connection with any failure of Issuer to prepare, execute, deliver and file any Collateral Document as and when required under the Note Purchase Agreement or to comply with Sections 8.16 and 8.18 of the Note Purchase Agreement (or any analogous provision under the RPA Transaction Documents), or any failure for the Agent to have, for the benefit of the Secured Parties, a valid and enforceable first priority, perfected lien on the Collateral; and
(c)
the entire amount of the Obligations plus all costs, expenses and collection and enforcement costs payable by the Guarantor under Section 6.12(c), without any requirement that the Agent or any Secured Party prove actual damages, upon the occurrence of any of the following events:
(i)
any of Issuer or Holdings filing a voluntary petition or instituting any other proceeding, in each case, seeking to adjudicate it as insolvent, or seeking liquidation, examinership, dissolution, winding-up, reorganization, restructuring, compromise, rearrangement, arrangement, adjustment, protection, moratorium, relief, stay of proceedings of creditors generally (or any class of creditors), or composition of it or its debts or any other relief, under any applicable Bankruptcy Law or at common law or in equity;

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(ii)
any petition is filed, application made or other proceeding instituted against or in respect of Issuer or Holdings (other than any petition that is filed, application made or other proceeding initially instituted by the Agent or its Affiliates):
(A)
seeking to adjudicate it as insolvent;
(B)
seeking liquidation, examinership, dissolution, winding-up, reorganization, restructuring, compromise, rearrangement, arrangement, adjustment, protection, moratorium, relief, stay of proceedings of creditors generally (or any class of creditors), or composition of Issuer or Holdings or their respective assets or any other relief under any Law, now or hereafter in effect relating to bankruptcy, winding-up, insolvency, reorganization, receivership, plans of arrangement or relief or protection of debtors or at common law or in equity; or
(C)
seeking the entry of an order for relief or the appointment of, or the taking of possession by, a receiver, interim receiver, examiner, receiver/manager, sequestrator, conservator, custodian, administrator, trustee, liquidator, voluntary administrator, receiver and manager or other similar official for it or any substantial part of its property,

if, in each case, any Designated Party consents to, colludes in or joins in such filing (other than participating in such filing for the sole purpose of maintaining standing to seek release or relief from such proceeding);

(iii)
any Designated Party filing an answer consenting to or otherwise acquiescing in or joining in (other than for the sole purpose of maintaining standing to seek release or relief from such proceeding) any proceeding seeking to adjudicate Issuer or Holdings as insolvent, seeking any liquidation, examinership, dissolution, winding-up, reorganization, restructuring, compromise, rearrangement, arrangement, adjustment, protection, moratorium, relief, stay of proceedings of creditors generally (or any class of creditors), or composition of Issuer or Holdings or their respective debts or any other relief under any Law, now or hereafter in effect relating to bankruptcy, winding-up, insolvency, reorganization, receivership, plans of arrangement or relief or protection of debtors or at common law or in equity or seeking the entry of an order for relief or the appointment of, or the taking of possession by, a receiver, examiner, interim receiver, receiver/manager, sequestrator, conservator, custodian, administrator, trustee, liquidator, voluntary administrator, receiver and manager or other similar official for Issuer or Holdings or any substantial part of Issuer’s or Holdings’ property;
(iv)
any Designated Party consenting to or colluding in or joining in (other than for the sole purposes of maintaining standing to seek release or relief from such proceeding) or participating in an application for, or seeking the entry of an order for relief or the appointment of, or the taking of possession by, a receiver, examiner, interim receiver, receiver/manager, sequestrator, conservator, custodian, administrator, trustee, liquidator, voluntary administrator, receiver and manager or other similar official (whether temporary or permanent) with respect to Issuer or Holdings, any Collateral or other substantial part of their respective property (or any portion of any of the foregoing) under any applicable Bankruptcy Law or at common law or in equity;

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(v)
Issuer or Holdings making an assignment for the benefit of creditors or making a proposal of such an assignment (or filing a Notice of its intention to do so), or admitting in any legal proceeding its insolvency or inability to pay its debts as they become due unless such statements are compelled and required by Law and otherwise true and correct, or declaring any general moratorium on its Indebtedness, or proposing a compromise or arrangement between it and any class of its creditors;
(vi)
any Designated Party seeking (or consenting to any) substantive consolidation of Issuer or Holdings, in a proceeding under Bankruptcy Laws, with any other Person;
(vii)
any Designated Party, (A) alleges, asserts or otherwise pursues any claim, affirmative defense, counterclaim, cause of action, setoff or other right that it may have against the Agent or any Note Secured Party or RPA Secured Party relating to such Person’s exercise or enforcement of its rights and remedies against any Collateral, under the Note Documents, RPA Transaction Documents or Applicable Law; provided, however, no Designated Party shall be prohibited from, in good faith, asserting rights expressly set forth under the Transaction Documents in any proceeding initiated by the Agent or Purchasers, or (B) causes, conspires, colludes with, acts in concert with or solicits any other Person in doing or attempting to do any of the acts described in subclause (A) of this clause (vii);
(viii)
any Designated Party, (A) takes any action, with intent or by gross negligence or willful omission, to directly or indirectly delay, oppose, avoid, contest, impede, obstruct, hinder, enjoin or otherwise interfere or frustrate in any manner with the Agent’s or any other Secured Party’s exercise or enforcement of its rights and remedies against any Collateral, under the Note Documents, RPA Transaction Documents or Applicable Law or (B) causes, conspires, colludes with, acts in concert with or solicits any other Person in doing or attempting to do any of the acts described in subclause (A) of this clause (viii);
(ix)
any breach by Issuer or Holdings of any covenant set forth in Section 9.01 of the Note Purchase Agreement (or analogous provision under the RPA Transaction Documents) that results in the substantive consolidation of Issuer or Holdings with any other Person; provided, however, that the Guarantor will not have any liability related to any covenant of Issuer or Holdings to maintain its solvency due to this clause (ix);
(x)
any Designated Party shall assert any claim (except for compulsory counterclaims), defense, set-off or offset against the Agent or any other Secured Party that such Designated Party expressly waived or agreed not to assert pursuant to the Note Documents or RPA Transaction Documents;
(xi)
in any judicial proceeding, any Designated Party makes application to a court to declare that (A) all or any portion of the Lien granted or purported to be granted to the Agent for the benefit of the Secured Parties under the Note Documents or RPA Transaction Documents or the obligation of Issuer to pay principal, interest or any other amounts on or in respect of the Notes under the Note Purchase Agreement or Purchased Proceeds under the Royalty Purchase Agreement as specified therein be rescinded, set aside or determined to be void or unenforceable or (B) any of the terms of the Note Documents or RPA Transaction Documents be modified without the consent of the Agent or the

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consent of any Person whose consent is required by the terms of such Note Document or RPA Transaction Document;
(xii)
any Designated Party takes any action, corporate, limited liability company or otherwise, including, an affirmative vote by the board of directors (or equivalent management or oversight body) of such Designated Party, to commence any Insolvency Proceeding or to approve, effect, consent to or authorize any of the actions described in clauses (i) through (xi) above, or otherwise acts in furtherance thereof; or
(xiii)
any other event or circumstance occurs which, under applicable Bankruptcy Laws, has an equivalent effect to any of the events or circumstances referred to in clauses (i) through (xii) above.
(d)
Notwithstanding anything to the contrary contained in this Agreement or any other Covered Document:
(i)
Any Guaranteed Obligations arising pursuant to the occurrence of any event or circumstance set forth in the preceding clauses (a), (b) or (c) of this Section 2.02 plus any and all indemnity, reimbursement or any other payment obligation of the Guarantor under the Contribution Agreements and Section 6.12 hereof shall not exceed the Guaranteed Obligations Cap.
(ii)
Guarantor acknowledges and agrees (A) it is directly obligated to pay all (1) Maintenance Expenses, (2) fees, costs and expenses in respect of the insurance required to be maintained under the Covered Documents, (3) the GSK Development Payment as and when due and payable to GSK in accordance with the terms of the GSK Agreement and (4) the closing fees, costs and expenses incurred by the NPA Secured Parties and RPA Secured Parties (including the reasonable fees and expenses of outside counsel) on or prior to the Closing Date in connection with the negotiation and documentation of the Transaction Documents in an amount not to exceed $[***] (of which $[***] has previously been deposited and paid prior to the Closing Date) and (B) cause to be paid (which shall, for accounting purposes, be treated as an equity contribution to the capital of Holdings and, as applicable, a subsequent equity contribution by Holdings to the capital of Issuer), on behalf of Issuer and Holdings, all Maintenance Expenses and Collection Account Fees; it being further understood that the Guarantor will cause Issuer to maintain at all times for this purpose an unrestricted cash balance of at least (x) prior to the New Account Bank Trigger Date, $[***] and (y) from and after the New Account Bank Trigger Date, $[***] (or such lesser amount as Purchaser Representative may agree in its sole discretion), in each case of the foregoing, such direct obligations of the Guarantor are not subject to (or count towards) the Guaranteed Obligations Cap.
(iii)
Guarantor acknowledges and agrees that the Secured Parties’ actual liabilities, obligations, losses, damages, fines, penalties, claims, costs and expenses will include the GSK Proceeds and proceeds thereof that any such Secured Party was entitled to receive or would have been entitled to receive absent the occurrence of any of the events or circumstances set forth in the preceding clauses (a), (b) or (c) of this Section 2.02, and the Secured Parties shall be entitled to make claims for all such missing, delayed or diminished payments in respect of the GSK Proceeds and proceeds thereof as liabilities, obligations, losses, damages, fines, penalties, claims, costs and expenses hereunder, and such missing, delayed or diminished payments in respect of the GSK Proceeds and

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proceeds thereof shall not be deemed consequential, punitive, special, indirect or incidental damages.
(e)
For the avoidance of doubt, if the occurrence of any event described in this Section 2.02 also constitutes, causes or contributes to a Default, Event of Default, Prepayment Trigger (as defined in the Note Purchase Agreement), acceleration or other exercise of remedies under the Note Purchase Agreement, the Royalty Purchase Agreement, the Security Agreement or any other Transaction Document, the Agent and the Secured Parties shall retain all rights and remedies thereunder and under Applicable Law with respect to the Note Parties, including acceleration, foreclosure against the Collateral and foreclosure against any pledged Equity Interests; provided, that nothing in this Section 2.02(d) shall require the Agent or any Secured Party to pursue remedies against Issuer, Holdings, the Collateral, any pledged Equity Interests or any other Person before enforcing the Guarantor’s obligations under this Agreement.

Section 2.03 Nature of Guarantee. This Agreement is an irrevocable, absolute, continuing guarantee of payment and performance when due (whether or not any bankruptcy, insolvency, receivership or similar proceeding shall have stayed the accrual or collection of any of the Guaranteed Obligations or operated as a discharge thereof) and not a guarantee of collection. This Agreement may not be revoked by the Guarantor and shall continue to be effective with respect to any Guaranteed Obligations arising or created after any attempted revocation by the Guarantor. This Agreement may be enforced by the Agent, and, to the extent permitted by the Transaction Documents, any Secured Party and any subsequent holder of any Obligations (or any part thereof or interest therein) and shall not be discharged by the assignment and assumption or negotiation of all or part of any Note or any rights to Purchased Proceeds.

Section 2.04 Guaranteed Obligations Not Reduced by Set-off. The Guaranteed Obligations, and the liabilities and obligations of the Guarantor hereunder, shall not be reduced, discharged or released because or by reason of any existing or future set-off, offset, claim or defense of any other Designated Party, or any other Person, against the Agent or any Secured Party or against payment of the Guaranteed Obligations, whether such set-off, offset, claim or defense arises in connection with the Guaranteed Obligations (or the transactions creating the Guaranteed Obligations) or otherwise.

Section 2.05 Payment by the Guarantor. If all or any part of the Guaranteed Obligations shall not be punctually paid when due, the Guarantor shall, within [***] after written demand therefor by the Agent, and without presentment, protest, notice of protest, notice of acceleration or intention to accelerate the maturity, or any other notice whatsoever, pay in Dollars, the amount then due from the Guarantor on the Guaranteed Obligations to the Agent at the Agent’s address as set forth herein. Such demand(s) may be made at any time coincident with or after the time for payment of all or part of the Guaranteed Obligations, and may be made from time to time with respect to the same or different items of Guaranteed Obligations. Such demand shall be deemed made, given and received in accordance with the notice provisions hereof.

Section 2.06 No Duty to Pursue Others. It shall not be necessary for the Agent or any Note Purchaser or RPA Purchaser (and the Guarantor hereby waives any rights which the Guarantor may have to require the Agent or any Note Purchaser or RPA Purchaser), in order to enforce the obligations of the Guarantor hereunder, first to (a) institute suit or exhaust its remedies against any Obligor or any other Person, (b) institute suit or exhaust its remedies with respect to any Guaranteed Obligation or any Person, (c) enforce the Agent’s rights against any collateral which shall ever have been given to secure any Guaranteed Obligation, (d) enforce the Agent’s or any Note Purchaser’s or RPA Purchaser’s rights against any other guarantor of the Guaranteed Obligations, (e) join any Obligor in any action seeking to enforce this Agreement, (f) exhaust any remedies available to the Agent or any Note Purchaser or RPA Purchaser against any collateral which shall ever have been given to secure the Note Obligations, RPA Obligations or Guaranteed Obligations, or (g) resort to any other means of obtaining payment of the Guaranteed

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Obligations. None of the Agent, the Note Purchasers, the RPA Purchasers or their respective Indemnitees shall be required to mitigate damages or take any other action to reduce, collect or enforce the Guaranteed Obligations.

Section 2.07 Waivers. The Guarantor acknowledges the provisions of the Transaction Documents, and (without limiting, for avoidance of doubt, the provisions of Section 6.09 of this Agreement) hereby waives, to the extent permitted by Applicable Law, notice of (a) any loans or advances made to Issuer or the purchase of any note or instrument issued by Issuer, (b) acceptance of this Agreement, (c) any modification or amendment of, or a grant by the Agent, any Purchaser or any Indemnitee of the Agent or any Purchaser of any waiver or consent under, the Note Purchase Agreement, the Royalty Purchase Agreement or any of the other Transaction Documents or any increase in the Guaranteed Obligations resulting from any such modification, amendment, waiver or consent, (d) any extension of the Scheduled Maturity Date or any other extension of the time when the payment or performance of any covenant or obligation under the Note Purchase Agreement, the Royalty Purchase Agreement or any other Transaction Document is due and any increase in the Guaranteed Obligations resulting from any such extension, (e) the occurrence of any Prepayment Trigger, Event of Default or any event that, with or without notice or the passage of time, would constitute a Prepayment Trigger or Event of Default, (f) the execution and delivery by Issuer or any other Person and any Purchaser of any other loan or credit agreement or of Issuer’s or any other Person’s execution and delivery of any promissory notes or other documents arising under the Transaction Documents or in connection with the Collateral, (g) any Purchaser’s transfer or disposition of the Guaranteed Obligations, or any part thereof in accordance with the Note Purchase Agreement or Royalty Purchase Agreement, (h) the occurrence of any Default or Event of Default, (i) any sale or foreclosure (or posting or advertising for sale or foreclosure) of any Collateral under the Transaction Documents, (j) protest, proof of non-payment or default by any Obligor or others liable for amounts due under the Obligations or the Guaranteed Obligations, (k) any taking, exchange, substitution, release, impairment, or non-perfection of any Collateral, or any settlement, compromise, waiver or release of any party (including Issuer), with respect to the Guaranteed Obligations, or any taking, release, impairment, amendment, waiver or other modification of any guarantee, for the Guaranteed Obligations, (l) the failure of any Purchaser to take any steps to perfect and maintain any security interest in, or to preserve any rights to, any security or collateral for the Obligations, (m) any event or circumstance described in one or more of Section 3.01 through Section 3.13 of this Agreement, (n) any election by, or on behalf of, any one or more of the Purchasers, in any proceeding instituted under Bankruptcy Laws, of the application of Section 1111(b)(2) of the Bankruptcy Code or any other applicable federal, state, provincial, municipal, local or foreign law relating to similar matters and (o) any other action at any time taken or omitted by the Agent or any Purchaser, and, generally, all demands and notices of every kind in connection with this Agreement or the Transaction Documents other than notices expressly provided for in this Agreement or the other Transaction Documents.

Section 2.08 Construction. The provisions of Section 1.02 of the Note Purchase Agreement and Section 1.2 of the Royalty Purchase Agreement are incorporated herein by reference and made a part hereof, mutatis mutandis; provided, that, in the event of any inconsistency, the Note Purchase Agreement shall control with respect to the Note Obligations and the Royalty Purchase Agreement shall control with respect to the RPA Obligations, except to the extent this Agreement expressly provides otherwise.

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ARTiCLE III

Events and Circumstances Not Reducing or Discharging Guarantor’s Obligations

The Guarantor hereby consents and agrees that the Guarantor’s obligations under this Agreement shall not be released, diminished, impaired, reduced or adversely affected by any one or more of the following events or circumstances, and waives, to the extent permitted by Applicable Law, any common law, equitable, statutory or other rights (including without limitation rights to notice other than those specifically provided for in this Agreement) which the Guarantor might otherwise have as a result of or in connection with any one or more of the following events or circumstances:

Section 3.01 Modifications. Any renewal, extension, increase, modification, alteration or rearrangement of all or any part of the Note Obligations, RPA Obligations or Guaranteed Obligations (including as a result of the joinder or release of one or more Persons as Issuer under the Note Purchase Agreement), the Note Purchase Agreement, the other Note Documents, the RPA Transaction Documents, or any other document, instrument, contract or understanding between any Designated Party and the Agent, or any other parties, pertaining to the Guaranteed Obligations.

Section 3.02 Adjustment. Any adjustment, waiver, indulgence, forbearance or compromise that might be granted or given by the Agent or any Purchaser to any Designated Party or Obligor.

Section 3.03 Condition of any Designated Party. The insolvency, bankruptcy, arrangement, adjustment, composition, liquidation, disability, dissolution or lack of power of any Designated Party or Obligor; or any dissolution of any Designated Party or Obligor, or any Disposition of any or all of the assets of any Designated Party or Obligor, or any changes in the shareholders, partners or members of any Designated Party or Obligor; or any reorganization of any Designated Party or Obligor.

Section 3.04 Invalidity of Guaranteed Obligations. The invalidity, illegality or unenforceability of all or any part of the Obligations or Guaranteed Obligations, or any document or agreement executed in connection with the Guaranteed Obligations, for any reason whatsoever, including without limitation the fact that (a) the Guaranteed Obligations, or any part thereof, exceeds the Maximum Lawful Rate, (b) the act of creating the Guaranteed Obligations or any part thereof is ultra vires, (c) the directors, managers, officers, employees, contractors, subcontractors (of any tier), partners, managers, trustees, advisors, attorneys or controlled Persons executing the Note Purchase Agreement or the other Note Documents acted in excess of their authority with respect to the circumstances giving rise to such Guaranteed Obligations, (d) the Guaranteed Obligations violate applicable usury laws, (e) any other Obligor has valid defenses, claims, set-offs or offsets (whether at law, in equity or by agreement) which render the Guaranteed Obligations wholly or partially uncollectible from such Obligor other than payment or performance of such Guaranteed Obligations, (f) the creation, performance or repayment of the Guaranteed Obligations (or the execution, delivery and performance of any document or instrument representing part of the Guaranteed Obligations or executed in connection with the Guaranteed Obligations, or given to secure the repayment of the Guaranteed Obligations) is illegal, uncollectible or unenforceable, or (g) the Note Purchase Agreement or any of the other Note Documents have been forged or otherwise are irregular or not genuine or authentic, it being agreed that the Guarantor shall remain liable hereon regardless of whether any other Obligor or any other Person be found not liable on the Guaranteed Obligations or any part thereof for any reason (other than payment or performance of such Guaranteed Obligations).

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Section 3.05 Release of Obligors. Any full or partial release of the liability of any other Obligor on the Guaranteed Obligations, or any part thereof, or of any co-guarantors, or any other Person now or hereafter liable, whether directly or indirectly, jointly, severally, or jointly and severally, to pay, perform, guarantee or assure the payment of the Guaranteed Obligations, or any part thereof, it being recognized, acknowledged and agreed by the Guarantor that the Guarantor may be required to pay the Guaranteed Obligations in full without assistance or support of any other Person, and the Guarantor has not been induced to enter into this Agreement on the basis of a contemplation, belief, understanding or agreement that other Persons will be liable to pay or perform the Guaranteed Obligations, or that the Agent will look to other Persons to pay or perform the Guaranteed Obligations.

Section 3.06 Other Collateral. The taking or accepting of any other security, collateral or guarantee, or other assurance of payment, for all or any part of the Obligations or Guaranteed Obligations.

Section 3.07 Release of Collateral. Any release, surrender, exchange, subordination, deterioration, cancellations, abandonments, failure to maintain, waste, loss or impairment (including without limitation negligent, willful, unreasonable or unjustifiable impairment) of any collateral, property or security at any time existing in connection with, or assuring or securing payment of, all or any part of the Guaranteed Obligations and the Obligations.

Section 3.08 Care and Diligence. The failure of the Agent or any other Person to exercise diligence or reasonable care in the preservation, protection, enforcement, sale or other handling or treatment of all or any part of any collateral, property or security, including but not limited to any neglect, delay, omission, failure or refusal of the Agent (a) to take or prosecute any action for the collection of any of the Guaranteed Obligations, (b) to foreclose, or initiate any action to foreclose, or, once commenced, prosecute to completion any action to foreclose upon any security therefor, or (c) to take or prosecute any action in connection with any instrument or agreement evidencing or securing all or any part of the Guaranteed Obligations.

Section 3.09 Unenforceability. The fact that any collateral, security, security interest or Lien contemplated or intended to be given, created or granted as security for the repayment of the Obligations or Guaranteed Obligations, or any part thereof, shall not be properly perfected or created, or shall prove to be unenforceable or subordinate to any other security interest or Lien, it being recognized and agreed by the Guarantor that the Guarantor is not entering into this Agreement in reliance on, or in contemplation of the benefits of, the validity, enforceability, collectability or value of any of the collateral for the Obligations or the Guaranteed Obligations.

Section 3.10 Offset. Any existing or future right of set-off, offset, claim or defense of any Designated Party or other Person against the Agent, the Note Purchasers, the RPA Purchasers or any other Person, or against payment of the Note Obligations, RPA Obligations or Guaranteed Obligations, whether such right of Set-off, offset, claim or defense arises in connection with the Note Obligations, RPA Obligations or Guaranteed Obligations (or the transactions creating the Note Obligations, RPA Obligations or Guaranteed Obligations) or otherwise, other than the payment in full in cash of the Guaranteed Obligations.

Section 3.11 Merger. The reorganization, merger or consolidation of any Designated Party or Obligor into or with any other Person.

Section 3.12 Preference. Any payment by any Designated Party or Obligor to the Agent or any Purchaser that is held to constitute a preference under Bankruptcy Laws, or for any reason the Agent or any Purchaser is required to refund such payment or pay such amount to any Designated Party or Obligor or someone else.

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Section 3.13 Other Actions Taken or Omitted. Any other action taken or omitted to be taken with respect to the Note Documents, the RPA Transaction Documents, the GSK Agreement, the Guaranteed Obligations or the security and collateral therefor, whether or not such action or omission prejudices the Guarantor or increases the likelihood that the Guarantor will be required to pay the Guaranteed Obligations pursuant to the terms hereof; it is the unambiguous and unequivocal intention of the Guarantor that the Guarantor shall be obligated to pay the Guaranteed Obligations when required hereunder, notwithstanding any occurrence, circumstance, event, action, or omission whatsoever, whether contemplated or not contemplated, and whether or not otherwise or particularly described herein, which obligation shall, be deemed satisfied only upon the full and final payment and satisfaction of the Guaranteed Obligations.

Section 3.14 Absence of Notice. The absence of notice by the Agent or any Purchaser to the Guarantor of any event or circumstance described in the preceding Section 3.01 through Section 3.13.

ARTICLE IV

Representations, Warranties and Covenants

Section 4.01 Representations and Warranties. The Guarantor hereby represents and warrants to the Agent and the Purchasers on the date hereof that (i) all representations and warranties relating to it contained in Covered Documents are true and correct as of the date when made and (ii) further that, as of the date hereof:

(a)
Organization; Requisite Power and Authority. The Guarantor is a corporation duly organized, validly existing and in good standing under the laws of (i) the State of Delaware and (ii) each other jurisdiction in which such qualification or good standing is required by Applicable Law, except where the failure to be so qualified or in good standing could not reasonably be expected to have a Material Adverse Effect or adversely affect the timing, amount or duration of the GSK Proceeds or Purchased Proceeds or the Agent’s, any Note Secured Party’s or any RPA Secured Party’s rights with respect thereto. The Guarantor has all requisite power and authority, and all licenses, permits, franchises, authorizations, consents and approvals of all Governmental Entity, required to own its property and conduct its business as now conducted and as proposed to be conducted in connection with the transactions contemplated hereby and by the Covered Documents. The Guarantor is not in liquidation or bankruptcy and has not become subject to any Insolvency Event.
(b)
No Conflict. The execution and delivery by the Guarantor of each Transaction Document to which the Guarantor is party, the Guarantee of the Guaranteed Obligations, the performance by the Guarantor of the obligations contemplated hereby or thereby, or the consummation of the transactions contemplated hereby or thereby will not: (i) contravene, conflict with, result in a breach, violation, cancellation or termination of, constitute a default (with or without Notice or lapse of time, or both) under, require prepayment under, give any Person the right to exercise any remedy (including termination, cancellation or acceleration) or obtain any additional rights under, or accelerate the maturity or performance of or payment under, in any respect, (A) any Applicable Law or any judgment, order, writ, decree, permit or license of any Governmental Entity to which the Guarantor or any of the Guarantor’s assets or properties may be subject or bound, (B) any term or provision of any contract, agreement, indenture, lease, license, mortgage, deed of trust, commitment, obligation or instrument to which the Guarantor is a party or by which the Guarantor or any of the Guarantor’s assets or properties is bound or committed or (C) any term or provision of any of the Guarantor’s Organizational Documents, except in the case of clauses (A) or (B) where any such event could not reasonably be expected to result in a (1) Material Adverse Effect or (2) an adverse effect, in any respect, on timing, amount or duration of the

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payments (including GSK Proceeds and/or any component parts thereof and Purchased Proceeds and/or any component parts thereof) payable to Issuer under the GSK Agreement or any agreement between or among Issuer, Holdings or the Guarantor (including in its capacity as the Servicer) or the right of the Agent, for the ratable benefit of the Secured Parties, to receive payments based on the GSK Proceeds (and/or any component parts of GSK Proceeds) or Purchased Proceeds (and/or any component parts thereof); or (ii) result in or require the creation or imposition of any Lien on any of its properties or assets (other than pursuant to the Transaction Documents). The Guarantor is in compliance with the terms and provisions of its Organizational Documents.
(c)
Due Authorization; Enforceability. The Guarantor has all requisite power and authority to execute, deliver, and perform its obligations under this Agreement and the other Transaction Documents to which it is party, to Guarantee the Guaranteed Obligations, to transfer the Collateral as set forth in the Issuer Contribution Agreement and to consummate any transactions contemplated hereby and thereby (including the Transactions). The execution and delivery of this Agreement and of each other Transaction Document to which the Guarantor is party and the performance by the Guarantor of its obligations hereunder and thereunder have been duly authorized in accordance with the Guarantor’s Organizational Documents. Each of the Transaction Documents to which the Guarantor is party has been duly executed and delivered by the Guarantor. Each of the Transaction Documents to which the Guarantor is party constitutes the legal, valid and binding obligation of the Guarantor, enforceable against the Guarantor in accordance with its respective terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or similar Applicable Laws affecting creditors’ rights generally, general equitable principles and principles of public policy.
(d)
Governmental and Third Party Consents. The execution and delivery by the Guarantor of the Transaction Documents to which the Guarantor is party, the Guarantee of the Guaranteed Obligations, the performance by the Guarantor of its obligations hereunder or thereunder and the consummation of any of the transactions contemplated hereunder and thereunder do not require any consent, approval, license, order, authorization or declaration from, Notice to, action or registration by or filing with any Governmental Entity or any other Person, except for those previously obtained or being provided on the date hereof and in full force and effect.
(e)
Adverse Proceedings. There is no action, suit, arbitration, proceeding, claim, citation, summons, subpoena, investigation or other proceeding (whether civil, criminal, administrative, regulatory, investigative or informal, and including by or before a Governmental Entity) pending or threatened by or against the Guarantor or its Affiliates, at law or in equity, that challenges or seeks to prevent or delay the consummation of any of the transactions contemplated by any Transaction Document to which the Guarantor is a party or challenges or seeks to suspend the continued performance under the GSK Agreement.
(f)
Solvency. Both immediately before and immediately after giving effect to the Transactions on the Closing Date and the application of proceeds therefrom, (i) the Guarantor is Solvent and (ii) the Guarantor is not subject to any Insolvency Event. The Guarantor has (i) not entered into the transaction contemplated by this Agreement or the other Transaction Documents to which it is a party with the actual intent to hinder, delay or defraud any creditor and (ii) received reasonably equivalent value in exchange for its obligations under this Agreement and the other Transaction Documents to which it is a party. After giving effect to this Agreement and the Transactions, the Guarantor is Solvent. No step has been taken by the Guarantor or any other Person to make the Guarantor subject to an Insolvency Event. The Guarantor has not previously been subject to an Insolvency Event. The Guarantor does not intend to incur, nor does it believe that it

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has incurred, debts beyond its ability to pay such debts as they mature. The Guarantor is not contemplating either the filing of a petition by it under any state or federal bankruptcy or insolvency laws or the liquidation of all or a major portion of its assets or property, and (to its Knowledge) no Person is contemplating the filing of any such petition against it.
(g)
Subsidiaries. 100% of the issued and outstanding Equity Interests of (i) Issuer is directly owned (both beneficially and of record) by Holdings (after giving effect to the Holdings Contribution Agreement) and (ii) Holdings is directly owned (both beneficially and of record) by the Guarantor. The issued and outstanding Equity Interests of Holdings and Issuer have been duly and validly authorized and issued in accordance with each of Issuer Organizational Documents and Holdings Organizational Documents. The Guarantor will receive, direct or indirect benefit from the Guarantor’s execution and delivery of this Agreement.
(h)
Independent Decision. The Guarantor is familiar with, and has independently reviewed books and records regarding, the financial condition of each of Issuer and Holdings and is familiar with the value of any and all collateral intended to be created as security for the payment of the Guaranteed Obligations; provided, however, that the Guarantor is not relying on such financial condition or collateral as an inducement to enter into this Agreement. The Guarantor has and will continue to have independent means of obtaining information concerning Issuer’s affairs, financial conditions and business.
(i)
No Representation by Other Parties. None of the Agent, the Purchasers or any other Person has made any representation, warranty or statement to the Guarantor in order to induce the Guarantor to execute this Agreement.
(j)
Investment Company Act. The Guarantor is not required to register as an “investment company” under the Investment Company Act of 1940.
(k)
Taxes. The Guarantor has timely filed (or caused to be filed) all Tax returns and reports required by Applicable Law to have been filed by it and has paid all Taxes required to have been paid by it (including in its capacity as a withholding agent), except any such Taxes that are being contested in good faith by appropriate proceedings, diligently conducted, and for which adequate reserves in accordance with GAAP or where any such failure to file or pay could not reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect. None of the payments received (or to be received) by the Issuer or the Guarantor in respect of the Included Payments has been, or under current Law will be, subject to any withholding Tax or Other Tax, and except for claiming benefits as a qualified resident under the income tax treaty between the United States and United Kingdom, neither the Guarantor nor the Issuer was ever required or requested to establish any entitlement to treaty benefits in order to avoid or minimize any such withholdings or deductions. Payments to the Parent and the Guarantor have qualified for benefits under the income tax treaty between the United States and the United Kingdom.
(l)
Sanctions; Anti-Corruption Laws.
(i)
None of the Guarantor, Holdings or Issuer nor, to the Knowledge of the Guarantor, any directors, officers, employers, agents, Affiliates or Representatives thereof, is an individual or an entity that is, or is owned or controlled by one or more individuals or entities that are (A) currently the subject or target of any Sanctions, (B) included on OFAC’s List of Specially Designated Nationals, HMT’s Consolidated List of Financial Sanctions Targets, or any similar list enforced by any other relevant Sanctions authority or (C) located, organized or resident in a Designated Jurisdiction. Each of the Guarantor,

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Holdings or Issuer has conducted its business in compliance with all applicable Sanctions and has instituted and maintained policies and procedures designed to promote and achieve compliance with such Sanctions.
(ii)
None of the Guarantor, Holdings or Issuer, nor, to the Knowledge of the Guarantor, any of their respective agents, Affiliates and Representatives, has failed to conduct its business in compliance with Anti-Corruption Laws, and each has instituted and maintained policies and procedures reasonably designed to promote and achieve compliance with such Laws. None of the Guarantor, Holdings or Issuer nor any director, officer, or employee nor, to the Knowledge of such party, any agent, Affiliate or Representative thereof has, directly or indirectly, made, offered, promised or authorized any payment or provision of anything of value to or for the benefit of any “foreign official” (as such term is defined in the FCPA) for the purpose of influencing any official act or decision or securing any improper advantage.
(iii)
To the extent applicable, each of the Guarantor, Holdings and Issuer are in compliance with the requirements of the Patriot Act.

Without prejudice to the survival of any agreement of the Guarantor under any other provision of this Agreement or (if applicable) any other Covered Document, all representations and warranties made by the Guarantor herein shall survive the execution and delivery of this Agreement and continue in effect until the Final Discharge Date.

Section 4.02 Covenants. The Guarantor covenants and agrees that, until the Final Discharge Date:

(a)
Notices. The Guarantor shall furnish, or shall cause Issuer or Holdings, as applicable, to furnish, to the Agent:
(i)
within [***] after receipt by the Guarantor, Issuer, Holdings or any Company Party of (i) (x) notice of the commencement by any Third Party of, or (y) written notice from any Third Party threatening to commence, in either case any action, suit, arbitration proceeding, claim, demand, investigation or other proceeding relating to this Agreement, any other Transaction Document, the GSK Agreement, the Meiji License Agreement, any transaction contemplated hereby or thereby, the GSK Proceeds, the Purchased Proceeds or the proceeds thereof (in any case other than any notice contemplated in Section 3.2(a) or Section 6.2(d) of the Royalty Purchase Agreement), or (ii) any other written correspondence relating to the foregoing, that, in each case of the foregoing, could reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds to be used to repay the Notes or the Purchased Proceeds and/or any component part thereof under the GSK Agreement, the Guarantor shall (A) notify the Agent in writing of the receipt of such notice or correspondence and (B) provide the Agent with a written summary of all material details thereof or, if such notice is in writing, furnish the Agent with a copy thereof and any materials reasonably related thereto;

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(ii)
within [***] after receipt by the Guarantor, Issuer, Holdings or any Company Party of any material written notice, certificate, offer, proposal, correspondence, report or other communication from GSK or Meiji relating to the GSK Agreement, the Meiji License Agreement, the IP Rights, the GSK Proceeds, the Purchased Proceeds or proceeds thereof or any Licensed Product in the Territory (in any case, other than any notice contemplated by Section 3.2(a), Section 6.2(a) or Section 6.2(d) of the Royalty Purchase Agreement, the Guarantor shall (A) notify the Agent in writing of the receipt thereof and provide the Agent with a written summary of all material details thereof and (B) to the extent not prohibited by obligations of confidentiality contained in the GSK Agreement and the Meiji License Agreement, furnish the Agent with a copy thereof;
(iii)
promptly (and in any event within [***]) after obtaining a Responsible Officer of the Guarantor obtaining Knowledge of any of the following, written notice to the Agent and Purchasers of:
(A)
the occurrence of any Insolvency Event or Bankruptcy Event in respect of the Guarantor, Issuer, Holdings or any of their respective Subsidiaries;
(B)
any material breach or default by any Company Party of or under any material covenant, agreement or other provision of any Transaction Document not remedied on or before the [***] after such breach;
(C)
any Company Party, GSK, Meiji or any other Third Party receiving any notice of audit or regulatory action by Regulatory Agency (other than routine inquiries) in the Territory relating to any of the Licensed Products or the Purchased Proceeds or proceeds thereof that could not reasonably be expected to have an adverse effect, in any material respect, including on the timing, amount or duration of, the GSK Proceeds to be used to repay the Notes or the Purchased Proceeds;
(D)
any representation or warranty made by the Guarantor, Issuer, Holdings or any Company Party in this Agreement or any other Transaction Document (or in any certificate delivered by any such Person to the Agent pursuant to this Agreement or any other Transaction Document) shall prove to be untrue, inaccurate or incomplete in any material respect on the date as of which made, and, if the consequences of the failure of such representation or warranty to be true and correct can be cured, such failure continues for a period of [***] after a Responsible Officer has Knowledge thereof without such cure;
(E)
the occurrence or existence of any change, effect, event, occurrence, state of facts, development or condition that has had, or would reasonably be expected to have, a Material Adverse Effect;
(F)
GSK has failed to prepare, execute, deliver or file any agreements, documents or instruments that are necessary to secure and maintain any Regulatory Authorizations for the relevant Licensed Product

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(except where GSK’s failure to do so would not reasonably be expected to result in a Material Adverse Effect);
(G)
GSK has withdrawn or abandoned, or failed to take any action necessary to prevent the withdrawal or abandonment of, any Regulatory Authorization for the relevant Licensed Product once obtained (except where such withdrawal or abandonment would not reasonably be expected to result in a Material Adverse Effect); or
(H)
GSK has consented to the withdrawal or abandonment of any Regulatory Authorization for the relevant Licensed Product (except where such withdrawal or abandonment would not reasonably be expected to result in a Material Adverse Effect).
(iv)
Ensure that the Issuer, on a quarterly basis, provides the information required by, and otherwise complies with, Section 6.2(d) of the Royalty Purchase Agreement and Section 8.03(c) of the Note Purchase Agreement;
(v)
promptly (and in any event within [***]) after becoming aware that any Tax may be required to be withheld with respect to any payment under the GSK Agreement, the Meiji License Agreement, any Transaction Document or otherwise to the Agent, the Note Purchasers or the RPA Purchasers;
(vi)
promptly (and in any event within [***]) notify the Agent and each of the Note Purchasers and the RPA Purchasers of any matter that has resulted or could reasonably be expected to result in a Material Adverse Effect or which has resulted in a default by the Guarantor, Issuer, Holdings or any Company Party of its covenants under the Note Documents or any RPA Transaction Documents;
(vii)
promptly (and in any event within [***]) notify the Agent after (i) the Guarantor, Issuer, Holdings, any Company Party or any of their respective Subsidiaries enters into a new Material Contract or amends, supplements or otherwise modifies an existing Material Contract and provide the Agent with a true, correct and complete copy of such new Material Contract or such amendment, supplement or modification or (ii) an existing Material Contract is terminated;
(viii)
Promptly (and in any event within [***]) notify the Agent after a Senior Officer has Knowledge of any act of Infringement of any Intellectual Property listed on Schedule 5.19(a) of the Royalty Purchase Agreement which could reasonably be expected to materially impair GSK’s ability to generate revenue from the Licensed Products which gives rise to GSK’s obligation to pay the Purchased Proceeds in accordance with the terms of the GSK Agreement.
(ix)
Each notice pursuant to the foregoing clauses of this Section 4.02 be accompanied by a statement of a Responsible Officer of the Guarantor (or its subsidiaries) setting forth details of the occurrence referred to therein and stating what action the applicable Company Party has taken and proposes to take with respect thereto. Each such notice shall describe with particularity any and all provisions of this Agreement and any other Transaction Document that have been breached.

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(b)
Maintenance of Existence. The Guarantor shall at all times (i) preserve, renew and maintain in full force and effect its legal existence under the Laws of the jurisdiction of its organization, (ii) preserve, renew and maintain in full force and effect its good standing under the Laws of the jurisdiction of its organization and (iii) use Commercially Reasonable and Diligent Efforts to maintain all rights, privileges, permits, licenses and franchises necessary or desirable in the normal conduct of its business, except to the extent that the failure to do so could not reasonably be expected to have a Material Adverse Effect.
(c)
Compliance with Laws.
(i)
Comply with the requirements of all Laws, including Healthcare Laws, and all orders, writs, injunctions and decrees applicable to it or to its business or property, except in such instances in which (A) such requirement of Law or order, writ, injunction or decree is being contested in good faith by appropriate proceedings diligently conducted, or (B) the failure to comply therewith could not reasonably be expected to have a Material Adverse Effect.
(ii)
The Guarantor will comply with all applicable Sanctions, Anti-Corruption Laws and Anti-Terrorism and AML Laws applicable to it and its business activities. The Guarantor shall maintain in effect and enforce policies and procedures designed to ensure compliance by the Guarantor, Holdings and Issuer and their respective directors, officers, employees and agents with Anti-Terrorism and AML Laws, Anti-Corruption Laws and Sanctions.
(d)
Negative Covenants. The Guarantor will not, and the Guarantor will not cause or permit Issuer or Holdings to:
(i)
take any action that would, directly or indirectly, cause Issuer or Holdings to cease to be a special purpose entity in accordance with the applicable terms and provisions of the Transaction Documents;
(ii)
other than in connection a transaction permitted by the proviso to clause (a) of the definition of “Change of Control”, sell, convey, assign, transfer, lease, sublease, license, sublicense or otherwise dispose of, or otherwise permit, consent or agree to any of the foregoing, in one transaction or a series of transactions, all or any part of (A) the Equity Interests in Issuer or Holdings or (B) Issuer’s or Holdings’ business, assets or property of any kind whatsoever, whether tangible or intangible, whether now owned or hereafter acquired, other than (i) pursuant to a New Arrangement, (ii) pursuant to the Note Documents, (iii) pursuant to any Permitted Royalty Monetization, or (iv) with the prior written consent of the Agent in its sole discretion;
(iii)
create, permit or suffer to exist any Lien on (A) all or any part of Issuer’s or Holdings’ assets or property of any kind whatsoever or (B) all or any part of the Equity Interests in Issuer or Holdings, in each case except for Permitted Liens;
(iv)
(A) accept or cause to be made, directly or indirectly, any payment on the Subordinated Obligations from Holdings or Issuer or (B) accept or cause to be made, directly or indirectly, any Restricted Payment from Holdings or Issuer, in each case other than (x) distributions after Payment in Full, (y) distributions of the proceeds of a Permitted Royalty Monetization after Payment in Full, or (z) with the prior written consent of the Agent in its sole discretion; or

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(v)
(A) enter into any Modification of the Issuer Contribution Agreement (including any waiver of a Servicer Termination Event) or (B) permit, consent or otherwise agree to any modification, amendment, waiver, termination, cancellation or rescission of the Issuer Contribution Agreement or the Holdings Contribution Agreement that, in each case, that would reasonably be expected to be materially adverse to the Agent, any Note Secured Party or any RPA Secured Party, the GSK Proceeds, the Purchased Proceeds or the Collateral, in each case, without the prior written consent of the Agent.

ARTICLE V

Agreement to Pay, Subrogation and Subordination

Section 5.01 Subordination of All Guarantor Claims.

(a)
Upon payment by the Guarantor of any sums to the Agent or such Purchaser as provided herein, all of the Guarantor’s rights of subrogation, exoneration, contribution, reimbursement, indemnity or otherwise arising therefrom against Issuer, any other Obligor or any other Person with respect to such sum shall be subordinate and junior in right of payment to the prior Payment in Full as and when the same are due. If any payment shall be paid to the Guarantor in violation of the immediately preceding sentence on account of such subrogation, exoneration, contribution, reimbursement, indemnity or other right such amount shall be held in trust for the benefit of the Purchasers, segregated from other funds of the Guarantor, and promptly paid or delivered to the Agent in the same form as so received (with any necessary endorsement or assignment) to be credited against the payment of the Obligations, whether due or to become due, in accordance with the terms of the Note Documents or to be held as Collateral for any Obligations.
(b)
Until the occurrence of the Final Discharge Date, the Guarantor hereby subordinates any and all obligations owed to the Guarantor by Issuer, Holdings or by any Obligor (the “Subordinated Obligations”, which shall exclude, for the avoidance of doubt after Payment in Full, any right of the Guarantor or any Monetization Counterparty under a Permitted Royalty Monetization to receive the proceeds of the Excluded GSK Proceeds) to the Obligations to the extent provided below:
(i)
The Guarantor shall not accept, demand or take any action to collect any payment on the Subordinated Obligations without the prior written consent of the Agent until Payment in Full,
(ii)
The Guarantor agrees that the Agent and the Purchasers shall be entitled to receive full payment (in cash) of all Obligations (including interest accruing during the pendency of any proceeding under Bankruptcy Laws, regardless of whether allowed or allowable in such proceeding (“Post-Petition Interest”)) in any proceeding under Bankruptcy Laws against any Obligor before the Guarantor receives any payment on account of any Subordinated Obligations.
(iii)
The Guarantor shall collect, enforce and receive payments on the Subordinated Obligations as trustee for the Agent and the Purchasers and deliver such payments to the Agent on account of the Obligations (including Post-Petition Interest), together with any necessary endorsements or other instruments of transfer, without reducing or affecting the liability of the Guarantor under this Agreement in any respect.

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(iv)
The Agent is authorized and empowered (but not obligated), in its discretion, (A) to require the Guarantor (I) to collect and enforce and to submit claims in respect of, Subordinated Obligations and (II) to pay any amounts received on such obligations to the Agent for application to the Obligations (including Post-Petition Interest) and (B) if the Guarantor fails within [***] following written notice to take actions which it is required to take under subclause (A) above, to take such actions in the name of the Guarantor.

Section 5.02 Payments Held in Trust. In the event that the Guarantor receives any funds, payment, claim or distribution in contravention of the other provisions of this Agreement, the Guarantor shall hold such funds, payments, claims or distributions in trust for the Agent, and agrees that it shall have absolutely no dominion over such funds, payments, claims or distributions so received except to pay them promptly to the Agent, and the Guarantor covenants promptly to pay the same to the Agent.

Section 5.03 Liens Subordinate. The Guarantor agrees that any liens, security interests, judgment liens, charges or other encumbrances which may exist upon any other Designated Party’s assets securing payment of the Subordinated Obligations shall be and remain inferior and subordinate to any liens, security interests, judgment liens, charges or other encumbrances upon such other Designated Party’s assets securing payment of the Guaranteed Obligations and the Obligations, regardless of whether such encumbrances in favor of the Guarantor or the Agent presently exist or are hereafter created or attach. Without the prior written consent of the Agent, the Guarantor shall not (a) exercise or enforce any creditor’s right it may have against any other Designated Party, or (b) foreclose, repossess, sequester or otherwise take steps or institute any action or proceedings (judicial or otherwise, including without limitation the commencement of, or joinder in, any proceeding under the Bankruptcy Laws) to enforce any liens, mortgages, deeds of trust, deeds to secure debt, security interests, collateral rights, judgments or other encumbrances on assets of any other Designated Party held by the Guarantor.

Section 5.04 Maximum Liability and Contribution Rights.

(a)
Notwithstanding anything contained herein to the contrary, the Guaranteed Obligations of the Guarantor shall at all times be limited to the maximum amount as will result in the Guaranteed Obligations of the Guarantor not constituting a fraudulent transfer or conveyance for purposes of Bankruptcy Laws to the extent applicable to this Agreement and the Guaranteed Obligations. In determining the limitations, if any, on the amount of the Guarantor’s obligations hereunder pursuant to the preceding sentence, it is the intention of the parties hereto that any rights of subrogation, indemnification or contribution which the Guarantor may have under this Agreement, any other agreement or Applicable Law, shall be taken into account.
(b)
If any payment shall be required to be made to the Agent or any Purchaser under this Agreement, the Guarantor hereby unconditionally and irrevocably agrees to pay such amount directly to the Agent for application to the Guaranteed Obligations in accordance with the applicable Transaction Documents; provided, that, if and to the extent the Agent determines that a contribution to Issuer is necessary or advisable to maximize the aggregate amount paid to the Purchasers under or in connection with the Note Documents or RPA Transaction Documents, the Guarantor shall make such contribution as directed by the Agent.

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ARTICLE VI

Miscellaneous

Section 6.01 Reinstatement. This Agreement shall remain in full force and effect and continue to be effective should any petition be filed by or against the Guarantor for liquidation or reorganization, should the Guarantor become insolvent or make an assignment for the benefit of creditors or should a receiver or trustee be appointed for all or any significant part of the Guarantor’s assets, and shall continue to be effective or be reinstated, as the case may be, if at any time payment and performance of the Guaranteed Obligations, or any part thereof, is, pursuant to Applicable Law, rescinded or reduced in amount, or must otherwise be restored or returned by any obligee of the Guaranteed Obligations, whether as a “voidable preference”, “fraudulent conveyance”, or otherwise (including pursuant to any settlement entered into by the Agent or any Purchaser in its discretion and whether as the result of such payment being subsequently invalidated, declared to be fraudulent or preferential, set aside or otherwise), all as though such payment or performance had not been made. In the event that any payment, or any part thereof, is rescinded, reduced, restored or returned, the Obligations shall be reinstated and deemed reduced only by such amount paid and not so rescinded, reduced, restored or returned.

Section 6.02 Benefit of Agreement. The terms and provisions of this Agreement shall be binding upon and inure to the benefit of the Guarantor, the Agent and the other Secured Parties and their respective successors and permitted assigns, except that the Guarantor shall not have the right to assign its rights or delegate its obligations under this Agreement or any interest herein, without the prior written consent of the Agent. No sales of participations, assignments, transfers, or other dispositions of any agreement governing the Obligations or any portion thereof or interest therein shall in any manner impair the Guarantee of the Guaranteed Obligations provided to the Agent, for the benefit of the Secured Parties, hereunder.

Section 6.03 Survival. Without prejudice to the survival of any other agreement of the Guarantor under this Agreement or any other Transaction Document, the agreements and obligations of the Guarantor contained in Article III, Section 6.01, Section 6.08, Section 6.12, Section 6.15 and Section 6.16, and the representations and warranties of the Guarantor contained in this Agreement, shall survive execution and delivery of this Agreement, termination of this Agreement and the other Transaction Documents, the occurrence of the Final Discharge Date.

Section 6.04 Taxes. The provisions of Article 5 of the Note Purchase Agreement shall be applicable to all payments made under this Agreement in respect of Note Obligations, mutatis mutandis, and the provisions of Section 5.12 of the Royalty Purchase Agreement shall be applicable to all payments made under this Agreement in respect of RPA Obligations, mutatis mutandis.

Section 6.05 Headings. The title of and section headings in this Agreement are for convenience of reference only, and shall not govern the interpretation of any of the terms and provisions of this Agreement.

Section 6.06 Termination and Release. This Agreement and the Guarantee of the Guaranteed Obligations provided hereby shall continue in full force and effect until the Final Discharge Date, subject to reinstatement pursuant to Section 6.01. In connection with any termination pursuant to this Section 6.06, the Agent shall execute and deliver to the Guarantor, at the Guarantor’s sole expense, all documents that the Guarantor shall reasonably request to evidence such termination or release and shall perform such other actions reasonably requested by the Guarantor to effect such release. Any execution and delivery of documents pursuant to this Section 6.06 shall be without recourse to or warranty by the Agent or any other Secured Party.

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Section 6.07 Entire Agreement. This Agreement embodies the entire agreement and understanding between the Guarantor and the Agent relating to the Guaranteed Obligations and supersedes all prior agreements and understandings among the Guarantor and the Agent relating to the Guaranteed Obligations.

Section 6.08 Governing Law; Jurisdiction; Venue; Service of Process; Waivers.

(a)
THIS Agreement shall be governed by and construed and interpreted in accordance with the Laws of the State of New York without regard to the conflicts of Laws principles thereof to the extent that such principles would require or permit the application of the Laws of a jurisdiction other than the State of New York.
(b)
EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING, CLAIM OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT, ANY NOTE DOCUMENT, ANY RPA TRANSACTION DOCUMENT OR THE TRANSACTIONS CONTEMPLATED UNDER ANY OF THE FOREGOING (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT, ANY NOTE DOCUMENT OR ANY RPA TRANSACTION DOCUMENT. EACH PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF THE OTHER PARTY HERETO HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT THE OTHER PARTY HERETO WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTY HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS Section 6.08.
(c)
Each of the Guarantor and the Agent irrevocably submits to the exclusive jurisdiction of (a) the courts of the State of New York located in New York County, New York and (b) the U.S. District Court for the Southern District of New York for the purposes of any suit, action or other proceeding arising out of, relating to or in connection with this Agreement or any transaction contemplated hereby. Each party hereto agrees to commence any action, suit or other proceeding arising out of, relating to or in connection with this Agreement or any transaction contemplated hereby in the U.S. District Court for the Southern District of New York or if such suit, action or other proceeding may not be brought in such court for jurisdictional reasons, in the courts of the State of New York located in New York County, New York. Each party hereto irrevocably and unconditionally waives any objection to the laying of venue of any action, suit or other proceeding arising out of, relating to or in connection with this Agreement or any transaction contemplated hereby in (i) the courts of the State of New York located in New York County, New York or (ii) the U.S. District Court for the Southern District of New York, and hereby further irrevocably and unconditionally waives, and shall not assert by way of motion, defense, or otherwise, in any such suit, action or proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper, or that this Agreement and the transactions contemplated hereby and thereby may not be enforced in or by any of the above-named courts.

26


 

(d)
Nothing contained in this Section 6.08 shall affect the right of the Agent to serve process in any other manner permitted by Applicable Law or commence legal proceedings or otherwise proceed against the Guarantor in any other jurisdiction.
(e)
To the extent that the Guarantor has or hereafter may be entitled to claim or may acquire, for itself or any of its assets, any immunity from suit, jurisdiction of any court or from any legal process (whether through service or Notice, attachment prior to judgment, attachment in aid of execution, or otherwise) with respect to itself or any of its property, the Guarantor hereby irrevocably waives such immunity in respect of its obligations hereunder and under any other Note Document or RPA Transaction Document to which it is a party to the fullest extent permitted by law.

Section 6.09 Waivers, Amendments and Remedies. No delay or omission of the Agent or any other Secured Party to exercise any right or remedy granted under this Agreement shall impair such right or remedy or be construed to be a waiver of any Default or Event of Default or an acquiescence therein, and any single or partial exercise of any such right or remedy shall not preclude any other or further exercise thereof or the exercise of any other right or remedy. Subject to Section 13.05 of the Note Purchase Agreement and any analogous consent requirements under the RPA Transaction Documents, no waiver, amendment or other variation of the terms, conditions or provisions of this Agreement whatsoever shall be valid unless in writing signed by the Agent and the Guarantor, and then only to the extent in such writing specifically set forth. All rights and remedies contained in this Agreement or afforded by Law shall be cumulative and all shall be available to the Agent and the other Secured Parties until this Agreement shall have terminated pursuant to Section 6.06.

Section 6.10 Severability. If any term or provision of this Agreement is held to be invalid, illegal or unenforceable by a court, arbitrator or Governmental Entity of competent jurisdiction, such invalidity, illegality or unenforceability shall not affect any other term or provision of this Agreement, which shall remain in full force and effect, and the parties hereto shall replace such term or provision with a new term or provision permitted by Applicable Law and having an economic effect as close as possible to the invalid, illegal or unenforceable term or provision. The holding of a term or provision to be invalid, illegal or unenforceable in a jurisdiction shall not have any effect on the application of such term or provision in any other jurisdiction.

Section 6.11 Counterparts. This Agreement and any other Notice, including Notice required to be in writing, may be in the form of an Electronic Record and may be executed using Electronic Signatures. This Agreement may be executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. Copies of executed counterparts transmitted by email with PDF attachment shall be considered original executed counterparts.

Section 6.12 Indemnification; Payment of Expenses.

(a)
Subject in all cases to Section 2.02(d), the Guarantor agrees to defend (subject to Indemnitees’ selection of counsel), indemnify, pay and hold harmless each Indemnitee from and against any and all Indemnified Liabilities, in all cases, arising, in whole or in part, out of or relating to any claim, notice, suit or proceeding commenced or threatened in writing (including, without limitation, by electronic means) by any Person (including any Governmental Entity) other than the Guarantor, Issuer, Holdings, any Company Party or any of their respective Affiliates; provided that the Guarantor shall not have any obligation to any Indemnitee hereunder with respect to any Indemnified Liabilities to the extent such Indemnified Liabilities arise from (i) the gross negligence or willful misconduct of an Indemnitee, (ii) a breach by an Indemnitee of any Covered Document,

27


 

(iii) any claim, action, suit, inquiry, litigation, investigation or proceeding that does not involve an act or omission of the Guarantor, Issuer, Holdings, any Company Party or any of their respective Affiliates and that is brought by an Indemnitee against any other Indemnitee or (iv) any reduction in the value of the GSK Proceeds (including the timing, amount and duration thereof) not directly arising from an Event of Default. To the extent that the undertakings to defend, indemnify, pay and hold harmless set forth in this Section 6.12 may be unenforceable in whole or in part because they violate any Law or public policy, the Guarantor shall contribute the maximum portion that they are permitted to pay and satisfy under Applicable Law to the payment and satisfaction of all Indemnified Liabilities incurred by Indemnitees or any of them. This Section 6.12 shall not apply with respect to Taxes other than Taxes that represent losses, claims, damages or similar amounts arising from any non-Tax claim.
(b)
To the extent permitted by Applicable Law, no party hereto shall assert, and each party hereto hereby waives, any claim against each other party hereto and such party’s Affiliates, directors, employees, attorneys or agents, on any theory of liability, for special, indirect, consequential or punitive damages (as opposed to direct or actual damages) (whether or not the claim therefor is based on contract, tort or duty imposed by any applicable legal requirement) arising out of, in connection with, as a result of, or in any way related to, this Agreement, any Note Document, any RPA Transaction Document or any agreement or instrument contemplated hereby or thereby or referred to herein or therein, the transactions contemplated hereby or thereby, the Notes, the Purchased Proceeds, the GSK Proceeds or the use of proceeds of any of the foregoing or any act or omission or event occurring in connection therewith, and each party hereto hereby waives, releases and agrees not to sue upon any such claim or any such damages, whether or not accrued and whether or not known or suspected to exist in its favor; provided, that missing, delayed, diminished or misdirected GSK Proceeds, Purchased Proceeds or other amounts that the Agent, any Note Secured Party or any RPA Secured Party was entitled to receive shall be deemed direct damages and not special, indirect or consequential damages.
(c)
Subject in all cases to Section 2.02(d), the Guarantor shall pay, promptly following written demand therefor, all reasonable and documented out-of-pocket fees, costs and expenses incurred by the Agent or any Secured Party in connection with the enforcement or protection of its rights in connection with this Agreement, including all such out-of-pocket expenses incurred after the commencement by or against any Designated Party of any proceeding under any Debtor Relief Laws naming such Person as the debtor in such proceeding, regardless of whether such interest and fees are allowed claims in such proceeding.

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Section 6.13 Notices. All Notices and other communications under this Agreement to a party hereto shall be in writing and shall be sent by email with PDF attachment, internationally recognized overnight delivery service or personal delivery to the following address of such party, or to such other address as shall be designated from time to time by such party in accordance with this Section 6.13:

 

(i)

In the case of the Guarantor:

Spero Therapeutics, Inc.

675 Massachusetts Avenue

14th Floor

Cambridge, MA 02139

Attention: Esther Rajavelu

Email: [***]

 

with a copy to:

WilmerHale

60 State Street

Boston, MA 02109

Attention: George W. Shuster Jr.; Nathan J. Moore

Email: george.shuster@wilmerhale.com; nathan.moore@wilmerhale.com

 

 

(ii)

In the case of the Agent:

c/o HCRX Investments HoldCo, L.P.

300 Atlantic Street, Suite 600

Stamford, CT 06901

Attention: [***]

Email: [***]

 

with a copy (which shall not constitute notice) to:

 

c/o HCRX Investments HoldCo, L.P.

300 Atlantic Street, Suite 600

Stamford, CT 06901

Attention: Chief Legal Officer

Email: [***]

 

with a copy (which shall not constitute notice) to:

 

Sidley Austin, LLP

2323 Cedar Springs Rd.

Dallas, Texas 75205

Attention: [***]

Email: [***];

 

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Section 6.14 Rights and Remedies. If the Guarantor becomes liable for any indebtedness owing by any other Obligor to the Agent or any Purchaser, by endorsement or otherwise, other than under this Agreement, such liability shall not be in any manner impaired or affected hereby and the rights of the Agent hereunder shall be cumulative of any and all other rights that Agent may ever have against the Guarantor. The exercise by the Agent of any right or remedy hereunder or under any other instrument, or at law or in equity, shall not preclude the concurrent or subsequent exercise of any other right or remedy including any rights or remedies available under Applicable Law.

Section 6.15 Right of Set-off. Each payment by the Guarantor under this Agreement shall be made without set-off, deduction, defense, recoupment or counterclaim. Subject in all cases to Section 2.02(d), if an Event of Default shall have occurred and be continuing or any payment is due under this Agreement and is not paid within [***] after demand therefor, with the consent of the Agent, each Note Purchaser, each RPA Purchaser and each of their respective Affiliates is hereby authorized at any time and from time to time, to the fullest extent permitted by law, without notice to the Guarantor (any such notice being expressly waived by the Guarantor), to set off and appropriate and apply any and all deposits (general or special, time or demand, provisional or final, in whatever currency) at any time held and other obligations (in whatever currency) at any time owing by such Note Purchaser, RPA Purchaser or any such Affiliate to or for the credit or the account of the Guarantor against any and all of the obligations of the Guarantor now or hereafter existing under this Agreement or (if applicable) any other Note Document or RPA Transaction Document to such Note Purchaser, RPA Purchaser or its Affiliates whether direct or indirect, absolute or contingent, matured or unmatured, and irrespective of whether or not such Note Purchaser, RPA Purchaser or Affiliate shall have made any demand under this Agreement or any other Note Document or RPA Transaction Document and although such obligations of the Guarantor are owed to a branch, office or Affiliate of such Note Purchaser or RPA Purchaser different from the branch, office or Affiliate holding such deposit or obligated on such indebtedness. The rights of each Note Purchaser, each RPA Purchaser and each of their respective Affiliates under this Section 6.15 are in addition to other rights and remedies (including other rights of set-off) that such Note Purchaser, RPA Purchaser or Affiliate may have. Each Note Purchaser and each RPA Purchaser shall notify the Guarantor and the Agent promptly after any such set-off and appropriation and application; provided, that the failure to give such notice shall not affect the validity of such set-off and appropriation and application.

Section 6.16 Continuing Guarantee. This Agreement is a continuing Guarantee that shall remain in full force and effect until the Final Discharge Date, subject to Section 6.01.

Section 6.17 Time of the Essence. Time shall be of the essence of each and every provision in this Agreement of which time is an element. In no event shall this Section 6.17 be construed to limit the effect of Section 6.09.

Section 6.18 Limited Liability. No recourse under any obligation, covenant or agreement of any party hereto shall be had against any incorporator, stockholder, officer, director, member, manager, partner, trustee, beneficiary, employee or agent of such party or any of its Affiliates (solely by virtue of such capacity) by the enforcement of any assessment or by any legal or equitable proceeding, by virtue of any statute or otherwise; it being expressly agreed and understood that this Agreement is solely a corporate obligation of such party, and that no personal liability whatever shall attach to or be incurred by any incorporator, stockholder, officer, director, member, manager, partner, trustee, beneficiary, employee or agent of any party or any of its Affiliates (solely by virtue of such capacity) or any of them under or by reason of any of the obligations, covenants or agreements of such party contained in this Agreement, or implied therefrom, and that any and all personal liability for breaches by any party of any of such obligations, covenants or agreements, either at common law or at equity, or by statute, rule or regulation, of every such incorporator, stockholder, officer, director, member, manager, partner, trustee, beneficiary, employee or agent is hereby expressly waived as a condition of and in consideration for the execution of

30


 

this Agreement; provided, that the foregoing shall not relieve any such Person from any liability it might otherwise have as a result of fraudulent actions taken or fraudulent omissions made by them. For the avoidance of doubt, to the extent that any Designated Party is a member, manager, partner, trustee, beneficiary or agent of any other Designated Party, nothing in this paragraph shall limit such Designated Party’s obligations under any Transaction Document to which it is a party.

[SIGNATURE PAGES FOLLOW]

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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the date first written above by their respective officers thereunto duly authorized.

 

THE GUARANTOR:

 

 

SPERO THERAPEUTICS, INC.,
a Delaware corporation

 

 

 

 

By:

/s/ Esther Rajavelu

Name:

Esther Rajavelu

Title:

Chief Executive Officer and Chief Financial Officer

 

Signature Page to

Limited Recourse Guaranty


 

 

AGENT (ON BEHALF OF NOTE PURCHASERS):

 

 

 

 

HCR SPERO SPV, LLC

 

 

 

 

 

 

 

 

By:

/s/ Clarke B. Futch

Name:

Clarke B. Futch

Title:

Authorized Signatory

 

 

 

 

 

 

 

 

AGENT (ON BEHALF OF RPA PURCHASERS):

 

 

 

 

HCR SPERO SPV, LLC

 

 

 

 

 

 

 

 

By:

/s/ Clarke B. Futch

Name:

Clarke B. Futch

Title:

Authorized Signatory

 

Signature Page to

Limited Recourse Guaranty


Exhibit 10.8

EXECUTIVE EMPLOYMENT AGREEMENT

This Executive Employment Agreement (this “Agreement”) is effective as of this 3rd day of August 2026 (the “Effective Date”) by and between Spero Therapeutics, Inc., a Delaware corporation (“Company”), and Debra Jeske Zack, MD, PhD (“Executive”).

WHEREAS, Executive and Company desire to set forth the terms and conditions for the employment of the Executive by the Company to assure the harmonious performance of the affairs of Company as well as to enter into a Proprietary Information and Inventions Assignment Agreement (the “Restrictive Covenant Agreement”).

NOW, THEREFORE, in consideration of the mutual promises, terms, provisions, and conditions contained herein, Company and Executive hereby agree as follows:

1.
Roles and Duties. Subject to the terms and conditions of this Agreement, Company shall employ Executive as its Chief Medical Officer (“CMO”), reporting to Company’s Chief Executive Officer (“CEO”). The Executive shall have such duties and responsibilities as are reasonably determined by the CEO and are consistent with the duties customarily performed by a CMO of a similarly situated company in the United States. Executive accepts such employment upon the terms and conditions set forth herein, and agrees to perform such duties and discharge such responsibilities to the best of Executive’s ability. During Executive’s employment, Executive shall devote all of Executive’s business time and energies to the business and affairs of Company. Notwithstanding the foregoing, nothing herein shall preclude Executive from (i) performing services for such other companies as Company may designate or permit; (ii) serving, with the prior written consent of the Board, which consent shall not be unreasonably withheld, as a member of the boards of directors or advisory boards (or their equivalents in the case of a non-corporate entity) of non-competing businesses or charitable, educational or civic organizations; (iii) engaging in charitable activities and community affairs; and (iv) managing Executive's personal investments and affairs; provided, however, that the activities set out in clauses (i), (ii), (iii) and (iv) shall be limited by Executive so as not to materially interfere, individually or in the aggregate, with the performance of Executive’s duties and responsibilities hereunder.
2.
Term of Employment.
(a)
Term. Subject to the terms hereof, Executive’s employment hereunder shall commence on August 3, 2026 (the “Start Date”) and continue until terminated hereunder by either party (such term of employment referred to herein as the “Term”).
(b)
Termination. Notwithstanding anything else contained in this Agreement, Executive’s employment hereunder shall terminate upon the earliest to occur of the following:
(i)
Death. Immediately upon Executive’s death;
(ii)
Termination by Company.

 


 

(A)
If because of Executive’s Disability (as defined below in Section 2(c)), written notice by Company to Executive that Executive’s

employment is being terminated as a result of Executive’s Disability, which termination shall be effective on the date of such notice or such later date as specified in writing by Company;

(B)
If for Cause (as defined below in Section 2(d)), written notice by Company to Executive that Executive’s employment is being terminated for Cause, which termination shall be effective on the date of such notice or such later date as specified in writing by Company, provided that if prior to the effective date of such termination Executive has cured the circumstances giving rise to the Cause (if capable of being cured as provided in Section 2(d)), then such termination shall not be effective; or
(C)
If by Company for reasons other than under Sections 2(b)(ii)(A) or (B), written notice by Company to Executive that Executive’s employment is being terminated, which termination shall be effective thirty (30) days after the date of such notice, provided however, that Company may provide Executive with 30 days’ pay at Executive’s base salary in lieu of such notice.
(iii)
Termination by Executive.
(A)
If for Good Reason (as defined below in Section 2(e)), written notice by Executive to Company that Executive is terminating Executive’s employment for Good Reason and that sets forth the factual basis supporting the alleged Good Reason, which termination shall be effective thirty (30) days after the date of such notice; provided that if prior to the effective date of such termination Company has cured the circumstances giving rise to the Good Reason if capable of being cured as provided in Section 2(e), then such termination shall not be effective; or
(B)
If without Good Reason, written notice by Executive to Company that Executive is terminating Executive’s employment, which termination shall be effective no fewer than sixty (60) days after the date of such notice unless waived, in whole or in part, by Company in its discretion.

Notwithstanding anything in this Section 2(b), Company may at any point, under the conditions set forth in Section 2(b)(ii)(B), terminate Executive’s employment for Cause prior to the effective date of any other termination contemplated hereunder; provided that if prior to the effective date of such for-Cause termination Executive has cured the circumstances giving rise to the Cause (if capable of being cured as provided in Section 2(d)), then such termination shall not be effective.

(c)
Definition of “Disability”. For purposes of this Agreement, “Disability” shall mean, unless otherwise prohibited by applicable law, Executive’s incapacity or inability to perform Executive’s duties and responsibilities as contemplated herein with or without a reasonable accommodation by reason of a medically determinable mental or physical impairment for one hundred twenty (120) days or more within any one (1) year period (cumulative or consecutive), which impairment can reasonably be expected to result in death or can be expected to last for a continuous

2


 

period of not less than six (6) months. The determination that Executive is disabled hereunder, if disputed by the parties, shall be resolved by a physician reasonably satisfactory to Executive and Company, at Company’s expense, and the determination of such physician shall be final and binding upon both Executive and Company to the extent permitted by applicable law. Executive hereby consents to such examination and consultation by a physician. Company shall keep all information it receives as a result of such inquiry and determination confidential consistent with applicable law and shall not use it for any purpose other than in connection with exercising its rights under this Agreement.
(d)
Definition of “Cause”. As used herein, “Cause” shall mean: (i) Executive’s conviction of (A) a felony or (B) any misdemeanor involving moral turpitude, deceit, dishonesty or fraud; (ii) Executive’s willful failure or refusal to comply with lawful directions of the CEO, which failure or refusal continues for more than thirty (30) days after written notice is given to Executive by the CEO, which notice sets forth in reasonable detail the nature of such failure or refusal; (iii) willful and material breach by Executive of a written Company policy applicable to Executive or Executive’s covenants and/or obligations under this Agreement or the material breach of the Restrictive Covenant Agreement; and/or (iv) material misconduct by Executive that seriously discredits or damages Company or any of its affiliates. Except in the case of (ii) above, it is not necessary that the Company’s finding of Cause occur prior to Executive’s termination of service. If Company determines, subsequent to Executive’s termination of service, that prior to Executive’s termination Executive engaged in conduct which would constitute “Cause,” (other than pursuant to (ii) above) then Executive shall have no right to any benefit or compensation under this Agreement.
(e)
Definition of “Good Reason”. As used herein, “Good Reason” shall mean:

(i) relocation of Executive’s principal business location to a location more than thirty (30) miles from Executive’s then-current business location unless such relocated business location is closer to Executive’s residence; (ii) a material diminution in Executive’s duties, authority or responsibilities; (iii) a material reduction in Executive’s Base Salary; or (iv) willful and material breach by Company of its covenants and/or obligations under this Agreement; provided that, in each of the foregoing clauses (i) through (iv) (A) Executive provides Company with written notice that Executive intends to terminate Executive’s employment hereunder for one of the grounds set forth in this Section 2(e) within thirty (30) days of such ground first occurring, (B) if such ground is capable of being cured, Company has failed to cure such ground within a period of thirty (30) days from the date of such written notice, and (C) Executive terminates by written notice Executive’s employment within sixty-five (65) days from the date that Executive provides the notice contemplated by clause (A) of this Section 2(e). For purposes of clarification, the above-listed conditions shall apply separately to each occurrence of Good Reason, and failure to adhere to such conditions in the event of Good Reason shall not disqualify Executive from asserting Good Reason for any subsequent occurrence of Good Reason. In addition, Executive may terminate Executive’s employment for Good Reason within one (1) year following a Change of Control (as defined below) if, after the Change of Control, Executive is not an executive of the parent company, provided that Executive’s roles, responsibilities and scope of authority within the subsidiary are not comparable to Executive’s roles, responsibilities and scope of authority with Company prior to the Change of Control. For purposes of this Agreement, “Good Reason” shall be interpreted in a manner, and limited to the extent necessary and reasonably feasible, so that it shall not cause adverse tax consequences for either party with respect to Section 409A (“Section 409A”) of the Internal Revenue Code of 1986, as amended (the “Code”) and any successor statute, regulation and guidance thereto.

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3.
Compensation.
(a)
Base Salary. Commencing on the Start Date, Company shall pay Executive a base salary (the “Base Salary”) at the annual rate of Five Hundred Thousand Dollars ($500,000.00). The Base Salary shall be payable in substantially equal periodic installments in accordance with Company’s payroll practices as in effect from time to time. Company shall deduct from each such installment all amounts required to be deducted or withheld under applicable law or under any employee benefit plan in which Executive participates. Company shall, on an annual basis, review the Base Salary, which maybe adjusted upward (but not downward) at Company’s discretion.
(b)
Annual Performance Bonus. Executive shall be eligible to receive an annual discretionary cash bonus (prorated for fiscal year 2026 based on Executive’s start date) (the “Annual Performance Bonus”), with the target amount of such Annual Performance Bonus equal to Forty Percent (40%) of Executive’s Base Salary in the year to which the Annual Performance Bonus relates; provided that the actual amount of the Annual Performance Bonus may be greater or less than such target amount. The amount of the Annual Performance Bonus shall be determined by the Board or an appropriate committee thereof in its sole discretion, and any such Annual Performance Bonus shall be paid to Executive no later than March 15th of the calendar year immediately following the calendar year to which it relates. Except as provided in Section 4, Executive must be employed by Company on the last day of the applicable fiscal year to which the Annual Performance Bonus relates in order to be eligible for such Annual Performance Bonus. Company shall deduct from the Annual Performance Bonus all amounts required to be deducted or withheld under applicable law or under any employee benefit plan in which Executive participates.
(c)
Equity. As a material inducement to the Executive joining the Company, on the Start Date, the Company shall award Executive, subject to approval by the Board or an authorized delegate thereof, equity awards with an aggregate value of $500,000, consisting of stock options and restricted stock units as follows: (i) a stock option to purchase a number of shares of the Company’s common stock having an aggregate value equal to $250,000, determined by dividing (A) $250,000 by (B) the Black-Scholes value of the stock options using the 20-day trailing average of Spero’s stock price at the grant date (Start Date), based on the Company’s historically used Black-Scholes model (rounded down to the nearest whole share) (the “Option”) and multiplying this by 2 (representing a 2:1 option to RSU ratio); and (ii) a number of restricted stock units having an aggregate value of $250,000 determined by dividing (C) $250,000 by (B) the 20-day trailing average of Spero’s stock price at the grant date (Start Date), rounded down to the nearest whole share (the “RSU” and together with the Option, the “Awards”). For example, if Spero’s 20-day trailing stock price average was $2.50, the grants would be calculated as follows: stock option value of $250,000, divided by the price of $2.50, multiplied by 2, would equal 200,000 stock options. For restricted stock units, the calculation would be $250,000, divided by the price of $2.50, and equal to 100,000 restricted stock units. The Awards shall be subject to the terms and conditions of the applicable Company equity plan and the applicable equity agreements between the Executive and the Company entered into pursuant thereto. The Awards are intended as inducement grants under Nasdaq Rule 5635(c)(4), to the extent applicable. The exercise price of the stock options subject to the Option shall be the closing price of the Company’s common stock on the Nasdaq Stock Market on the Start Date. The Option shall have a term of ten (10) years and vests over four (4) years, 25% on the first anniversary of the Start Date with the balance to vest in equal monthly installments over the following 36 months except as otherwise provided in the option agreement. The RSU will vest in four (4) equal annual installments beginning on the first anniversary of the Start Date except as otherwise provided in the RSU

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agreement. Commencing in fiscal year 2027, Executive shall be eligible to be considered for the grant of stock options and/or other equity-based awards commensurate with Executive’s position and responsibilities. The amount, terms and conditions of any stock option or other equity-based award shall be determined by the Board or an appropriate committee thereof in its discretion and set forth in the applicable equity plan and other documents governing the award.
(d)
Flexible Time Off. In addition to standard paid holidays, all Spero employees may take time off as needed and appropriate under the circumstances, including for vacation and personal time, consistent with the Company’s Flexible Time Off (FTO) Policy, which may be revised by Company in its discretion.
(e)
Fringe Benefits. Executive shall be entitled to participate in all benefit/welfare plans and fringe benefits provided to Company senior executives and subject to the terms of such plans and policies. Executive understands that, except when prohibited by applicable law, Company’s benefit plans and fringe benefits may be amended by Company from time to time in its sole discretion. The terms of any such benefits shall be governed by the applicable plan documents and Company policies in effect from time to time.
(f)
Reimbursement of Expenses. Company shall reimburse Executive for all ordinary and reasonable out-of-pocket business expenses incurred by Executive in furtherance of Company’s business in accordance with Company’s policies with respect thereto as in effect from time to time. Executive must submit any request for reimbursement no later than ninety (90) days following the date that such business expense is incurred. All reimbursements provided under this Agreement shall be made or provided in accordance with the requirements of Section 409A including, where applicable, the requirement that (i) any reimbursement is for expenses incurred during Executive’s lifetime (or during a shorter period of time specified in this Agreement); (ii) the amount of expenses eligible for reimbursement during a calendar year may not affect the expenses eligible for reimbursement in any other calendar year; (iii) the reimbursement of an eligible expense shall be made no later than the last day of the calendar year following the year in which the expense is incurred; and (iv) the right to reimbursement or in-kind benefits is not subject to liquidation or exchange for another benefit.
(g)
Indemnification. Executive shall be entitled to any indemnification with respect to Executive’s services provided hereunder pursuant to Delaware law, the terms and conditions of the Company’s certificate of incorporation and/or by-laws, and Company’s standard indemnification agreement for directors and officers as executed by Company and Executive. Executive shall be entitled to coverage under the Company’s Directors’ and Officers’ (“D&O”) insurance policies that it may hold now or in the future to the same extent and in the same manner (i.e., subject to the same terms and conditions) that the Company’s other executive officers are entitled to coverage under any of the Company’s D&O insurance policies that it may have.
(h)
Forfeiture/Clawback. All compensation shall be subject to any forfeiture or clawback policy established by Company generally for senior executives from time to time (to the extent permitted by applicable law) and any other such policy required by applicable law.
4.
Payments Upon Termination.

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(a)
Definition of Accrued Obligations. For purposes of this Agreement, “Accrued Obligations” means: (i) the portion of Executive’s Base Salary that has accrued prior to any termination of Executive’s employment with Company and has not yet been paid; (ii) any accrued but unused FTO pursuant to Company’s standard policy and practices (to the extent FTO accrues under the applicable written policy at that time); and (iii) the amount of any expenses properly incurred by Executive on behalf of Company prior to any such termination and not yet reimbursed subject to Company policy. Executive’s entitlement to any other compensation or benefit under any plan of Company shall be governed by and determined in accordance with the terms of such plans, except as otherwise specified in this Agreement.
(b)
Termination by Company for Cause. If Executive’s employment hereunder is terminated by Company for Cause, then Company shall pay the Accrued Obligations to Executive promptly on or following the effective date of such termination and shall have no further obligations with respect to any benefit or compensation under this Agreement to Executive hereunder.
(c)
Termination by Executive Without Good Reason. If Executive’s employment hereunder is terminated by Executive without Good Reason, then Company shall pay the Accrued Obligations and any accrued and unpaid Annual Performance Bonus for the prior fiscal year to Executive promptly following the effective date of such termination and consistent with applicable law, and shall have no further obligations with respect to any benefit or compensation under this Agreement to Executive hereunder.
(d)
Termination as a Result of Executive’s Disability or Death. If Executive’s employment hereunder terminates as a result of Executive’s Disability or death, promptly after such termination Company shall pay to Executive: (i) the Accrued Obligations; (ii) any accrued and unpaid Annual Performance Bonus for the prior fiscal year; and (iii) the Pro Rated Bonus (as defined below), and shall have no further obligations with respect to any benefit or compensation under this Agreement to Executive hereunder. As used in this Section 4, “Pro Rated Bonus” shall mean an amount in cash equal to the target of Annual Performance Bonus for which Executive would have been eligible with respect to the year in which termination of Executive’s employment occurs multiplied by a fraction, the numerator of which is the number of days during which Executive is employed by Company during the year of termination and the denominator of which is 365.
(e)
Termination by Company Without Cause or by Executive For Good Reason. In the event that Executive’s employment is terminated by action of Company other than for Cause, or Executive terminates Executive’s employment for Good Reason, then, in addition to the Accrued Obligations and any accrued and unpaid Annual Performance Bonus for the prior fiscal year, Executive shall receive the following, subject to the terms and conditions described in Section 4(g) (including Executive’s execution of the Release (as defined herein)):

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(i)
Severance Payments. Continuation of payments in an amount equal to Executive’s then-current Base Salary for a nine (9) month period, less all customary and required taxes and employment-related deductions, in accordance with Company’s normal payroll practices (provided such payments shall be made at least monthly), commencing on the first payroll date following the date on which the Release required by Section 4(g) becomes effective and non-revocable, but not after seventy (70) days following the effective date of termination from employment; provided, that if the 70th day falls in the calendar year following the year during which the termination or separation from service occurred, then the payments shall commence in such subsequent calendar year; provided further that if such payments commence in such subsequent year, the first such payment shall be a lump sum in an amount equal to the payments that would have come due since Employee’s separation from service.
(ii)
Pro Rata Bonus. Payment of the Pro-Rated Bonus, paid to Executive no later than March 15 of the calendar year next preceding the year of termination of employment, after deduction of all amounts required to be deducted or withheld under applicable law.
(iii)
Benefits Payments. Subject to Executive’s eligibility for and proper election of continued medical coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), Company shall contribute to the cost of Executive’s medical insurance premiums under COBRA to the same extent that such insurance continues to be provided to similarly situated executives at the time of Executive’s termination with the cost of the regular premium for such benefits shared in the same relative proportion by Company and Executive as in effect on the last day of employment (the “COBRA Payment”), until the earlier to occur of: (i) nine (9) months following Executive’s termination date, or (ii) the date Executive becomes eligible for medical benefits with another employer. Notwithstanding the foregoing, if Executive’s COBRA Payment would cause the applicable group health plan to be discriminatory and, therefore, result in adverse tax consequences to Executive, Company shall, in lieu of the COBRA Payment, provide Executive with an equivalent monthly cash payment, minus deduction of all amounts required to be deducted or withheld under applicable law, for any period of time Executive is eligible to receive the COBRA Payment. Executive shall bear full responsibility for applying for COBRA continuation coverage and Company shall have no obligation to provide Executive such coverage if Executive fails to elect COBRA benefits in a timely fashion.

Payment of the above-described severance payments and benefits is expressly conditioned on Executive’s execution without revocation of the Release and return of Company property under Section 6.

(f)
Termination by Company Without Cause or by Executive For Good Reason Following a Change of Control. In the event that a Change of Control (as defined below) occurs and within a period of one (1) year following the Change of Control, or ninety (90) days preceding the earlier to occur of a Change of Control or the execution of a definitive agreement the consummation of which would result in a Change of Control, Executive’s employment is terminated other than for Cause, or Executive terminates Executive’s employment for Good Reason, then, in addition to the

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Accrued Obligations and any accrued and unpaid Annual Performance Bonus for the prior fiscal year, Executive shall receive the following, subject to the terms and conditions described in Section 4(g) (including Executive’s execution of the Release):
(i)
Lump Sum Severance Payment. Payment of a lump sum amount equal to twelve (12) months of Executive’s then-current Base Salary plus the Pro-Rated Bonus, less all customary and required taxes and employment-related deductions, paid on the first payroll date following the date on which the Release required by Paragraph 4(g) becomes effective and non-revocable, but not after seventy (70) days following the effective date of termination from employment.
(ii)
Equity Acceleration. All of Executive’s unvested equity awards shall accelerate and vest immediately on the date of termination of Executive’s employment.
(iii)
Benefit Payments. Subject to Executive’s eligibility for and proper election of continued medical coverage under COBRA, Company shall contribute to the cost of Executive’s medical insurance premiums under COBRA to the same extent that such insurance continues to be provided to similarly situated executives at the time of Executive’s termination with the cost of the regular premium for such benefits shared in the same relative proportion by Company and Executive as in effect on the last day of employment, until the earlier to occur of: (i) twelve (12) months following Executive’s termination date, or (ii) the date Executive becomes eligible for medical benefits with another employer. Notwithstanding the foregoing, if Executive’s COBRA Payment would cause the applicable group health plan to be discriminatory and, therefore, result in adverse tax consequences to Executive, Company shall, in lieu of the COBRA Payment, provide Executive with an equivalent monthly cash payment, minus deduction of all amounts required to be deducted or withheld under applicable law, for any period of time Executive is eligible to receive the COBRA Payment. Executive shall bear full responsibility for applying for COBRA continuation coverage and Company shall have no obligation to provide Executive such coverage if Executive fails to elect COBRA benefits in a timely fashion.

Payment of the above-described severance payments and benefits are expressly conditioned on Executive’s execution without revocation of a separation agreement in a form provided by and acceptable to the Company as set forth in (g) below. In the event that Executive is eligible for the severance payments and benefits under this Section 4(f), Executive shall not be eligible for any of the severance payments and benefits as provided in Section 4(e).

As used herein, a “Change of Control” shall mean the occurrence of any of the following events: (i) Ownership. Any “Person” (as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as amended) becomes the “Beneficial Owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities of Company representing fifty percent (50%) or more of the total voting power represented by Company’s then outstanding voting securities (excluding for this purpose any such voting securities held by Company, or any affiliate, parent or subsidiary of Company, or by any employee benefit plan of Company) pursuant to a transaction or a series of related transactions; or (ii) Merger/Sale of Assets. (A) A merger or consolidation of Company whether or not approved by the Board, other than a merger or consolidation which would

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result in the voting securities of Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or the parent of such corporation) at least fifty percent (50%) of the total voting power represented by the voting securities of Company or such surviving entity or parent of such corporation, as the case may be, outstanding immediately after such merger or consolidation; (B) or Company’s stockholders approve an agreement for the sale or disposition by Company of all or substantially all of Company’s assets; or (iii) Change in Board Composition. A change in the composition of the Board, as a result of which fewer than a majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (A) are directors of Company as of the date of this Agreement, or (B) are elected, or nominated for election, to the Board with the affirmative votes of at least a majority of the Incumbent Directors, or by a committee of the Board made up of at least a majority of the Incumbent Directors, at the time of such election or nomination (but shall not include an individual whose election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors).

(g)
Execution of Separation and Release of Claims Agreement. Company shall not be obligated to pay Executive any of the severance payments or benefits described in this Section 4 unless and until Executive has executed (without revocation) a Separation and Release of Claims Agreement as described below in a form prepared by and acceptable to Company (the “Release”). The Release shall contain customary provisions, including without limitation, a general release of claims against Company and its affiliated entities and each of their officers, directors and employees, affirmation of the covenants set forth in the Restrictive Covenant Agreement, and covenants by Executive of cooperation and non-disparagement. The Release must be provided to Executive not later than fifteen (15) days following the effective date of termination of Executive’s employment by Company and executed by Executive and returned to Company within sixty (60) days after such effective date. If Executive fails or refuses to return the Release within such 60-day period, Executive’s severance payments and benefits to be paid hereunder shall be forfeited.
(h)
No Other Payments or Benefits Owing. Except as expressly set forth herein, the payments and benefits set forth in this Section 4: (a) shall be the sole amounts owing to Executive upon termination of Executive’s employment for the reasons set forth above, and Executive shall not be eligible for any other payments or other forms of compensation or benefits; (b) shall be the sole remedy, if any, available to Executive in the event that Executive brings any claim against Company relating to the termination of Executive’s employment under this Agreement; and (c) shall not be subject to set-off by Company or any obligation on the part of Executive to mitigate or to offset compensation earned by Executive in other pursuits after termination of employment, other than as specified herein with respect to medical benefits provided by another employer.
5.
Restrictive Covenant Agreement. Executive expressly acknowledges that: (a) there are proprietary aspects of the business of Company; (b) during the course of Executive’s employment, Company shall furnish, disclose or make available to Executive confidential and proprietary information; (c) such Confidential Information has been developed and shall be developed by Company through the expenditure of substantial time, effort and money; and (d) in the course of Executive’s employment, Executive shall be introduced to customers and others with important relationships to Company, and any and all “goodwill” created through such introductions belongs exclusively to Company, including, but not limited to, any goodwill created as a result of direct or indirect contacts or relationships between Executive and any customers of Company. In light of the foregoing acknowledgements, and as a condition of employment hereunder, Executive hereby affirms

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the Restrictive Covenant Agreement entered into on the date hereof as a binding obligation of the Executive, enforceable in accordance with its terms.
6.
Property and Records. Upon the termination of Executive’s employment hereunder for any reason or for no reason (voluntarily or involuntarily), or if Company otherwise requests, Executive shall: (a) return to Company all tangible business information and copies thereof (regardless how such Confidential Information or copies are maintained), and (b) deliver to Company any property of Company which may be in Executive’s possession, including, but not limited to, smart phones, laptops, cell phones (the foregoing, “electronic devices”), products, materials, memoranda, notes, records, reports or other documents or photocopies or electronic copies of the same. Executive may retain copies of any exclusively personal data contained in or on Company-owned electronic devices returned to Company pursuant to the foregoing. The foregoing notwithstanding, Executive understands and agrees that Company property belongs exclusively to Company, it should be used for Company business, and Executive has no reasonable expectation of privacy on any Company property or with respect to any information stored thereon.
7.
Cooperation. During and after Executive’s employment, Executive shall fully cooperate with Company to the extent reasonable in the defense or prosecution of any claims or actions now in existence or which may be brought in the future against or on behalf of Company (other than claims directly or indirectly against Executive) which relate to events or occurrences that transpired while Executive was employed by Company. Executive’s cooperation in connection with such claims or actions shall include, but not be limited to, being available to meet with counsel to prepare for discovery or trial and to act as a witness on behalf of Company at mutually convenient times. During and after Executive’s employment, Executive also shall fully cooperate with Company to the extent reasonable in connection with any investigation or review of any federal, state or local regulatory authority as any such investigation or review relates to events or occurrences that transpired while Executive was employed by Company. Company shall reimburse Executive for any reasonable out-of-pocket expenses incurred in connection with the Executive’s performance of obligations pursuant to this section, provided that they are approved in advance. For the avoidance of doubt, nothing herein shall require Executive to provide anything other than truthful information.
8.
Code Sections 409A and 280G.
(a)
In the event that the payments or benefits set forth in Section 4 of this Agreement constitute “non-qualified deferred compensation” subject to Section 409A, then the following conditions apply to such payments or benefits:
(i)
Any termination of Executive’s employment triggering payment of benefits under Section 4 must constitute a “separation from service” under Section 409A(a)(2)(A)(i) of the Code and Treas. Reg. §1.409A-1(h) before distribution of such benefits can commence. To the extent that the termination of Executive’s employment does not constitute a separation of service under Section 409A(a)(2)(A)(i) of the Code and Treas. Reg. §1.409A-1(h) (as the result of further services that are reasonably anticipated to be provided by Executive to Company at the time Executive’s employment terminates), any such payments under Section 4 that constitute deferred compensation under Section 409A shall be delayed until after the date of a subsequent event constituting a separation of service under Section 409A(a)(2)(A)(i) of the Code and Treas. Reg. §1.409A-1(h). For purposes of clarification, this Section 8(a) shall not

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cause any forfeiture of benefits on Executive’s part but shall only act as a delay until such time as a “separation from service” occurs.
(ii)
Notwithstanding any other provision with respect to the timing of payments under Section 4 if, at the time of Executive’s termination, Executive is deemed to be a “specified employee” of Company (within the meaning of Section 409A(a)(2)(B)(i) of the Code), then limited only to the extent necessary to comply with the requirements of Section 409A, any payments to which Executive may become entitled under Section 4 which are subject to Section 409A (and not otherwise exempt from its application) shall be withheld until the first (1st) business day of the seventh (7th) month following the termination of Executive’s employment, at which time Executive shall be paid an aggregate amount equal to the accumulated, but unpaid, payments otherwise due to Executive under the terms of Section 4.
(b)
It is intended that each installment of the payments and benefits provided under Section 4 of this Agreement shall be treated as a separate “payment” for purposes of Section 409A. Neither Company nor Executive shall have the right to accelerate or defer the delivery of any such payments or benefits except to the extent specifically permitted or required by Section 409A.
(c)
Notwithstanding any other provision of this Agreement to the contrary, this Agreement shall be interpreted and at all times administered in a manner that avoids the inclusion of compensation in income under Section 409A, or the payment of increased taxes, excise taxes or other penalties under Section 409A. The parties intend this Agreement to be in compliance with Section 409A. Executive acknowledges and agrees that Company does not guarantee the tax treatment or tax consequences associated with any payment or benefit arising under this Agreement, including but not limited to consequences related to Section 409A.
(d)
If any payment or benefit Executive would receive under this Agreement, when combined with any other payment or benefit Executive receives pursuant to a Change of Control (for purposes of this section, a “Payment”) would: (i) constitute a “parachute payment” within the meaning of Section 280G the Code; and (ii) but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then such Payment shall be either: (A) the full amount of such Payment; or (B) such lesser amount (with cash payments being reduced before stock option compensation) as would result in no portion of the Payment being subject to the Excise Tax, whichever of the foregoing amounts, taking into account the applicable federal, state and local employments taxes, income taxes, and the Excise Tax, results in Executive’s receipt, on an after-tax basis, of the greater amount of the Payment notwithstanding that all or some portion of the Payment may be subject to the Excise Tax. Notwithstanding the foregoing, if, prior to the closing of an initial public offering, any Payment can be exempt from the definition of “parachute payment” and the Excise Tax pursuant to the shareholder approval requirements described in Treas. Regs. § 1.280G-1, Q&A 6, the Company will, at the Executive’s election (and subject to the Executive signing an appropriate waiver) seek shareholder approval to exempt such Payment from the definition of “parachute payment” and the Excise Tax.

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9.
General.
(a)
Notices. Except as otherwise specifically provided herein, any notice required or permitted by this Agreement shall be in writing and shall be delivered as follows with notice deemed given as indicated: (i) by personal delivery when delivered personally; (ii) by overnight courier upon written verification of receipt; (iii) by electronic transmission upon acknowledgment of receipt of electronic transmission; or (iv) by certified or registered mail, return receipt requested, upon verification of receipt.
Notices to Executive shall be sent to the last known address in Company’s records or such other address as Executive may specify in writing.
Notices to Company shall be sent to:

Spero Therapeutics, Inc.

675 Massachusetts Ave., 14th Floor

Cambridge, MA 02139

Attn: CEO

(b)
Modifications and Amendments. The terms and provisions of this Agreement may be modified or amended only by written agreement executed by the parties hereto.
(c)
Waivers and Consents. The terms and provisions of this Agreement may be waived, or consent for the departure therefrom granted, only by a written document executed by the party entitled to the benefits of such terms or provisions. No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with respect to any other terms or provisions of this Agreement, whether or not similar. Each such waiver or consent shall be effective only in the specific instance and for the purpose for which it was given and shall not constitute a continuing waiver or consent.
(d)
Assignment. Company may assign its rights and obligations hereunder to any person or entity that succeeds to all or substantially all of Company’s business or that aspect of Company’s business in which Executive is principally involved. Executive may not assign Executive’s rights and obligations under this Agreement without the prior written consent of Company.
(e)
Headings and Captions. The headings and captions of the various subdivisions of this Agreement are for convenience of reference only and shall in no way modify or affect the meaning or construction of any of the terms or provisions hereof.
(f)
Entire Agreement. This Agreement, together with the other agreements specifically referenced herein, embodies the entire agreement and understanding between the parties hereto with respect to the subject matter hereof and supersedes all prior oral or written agreements and understandings relating to the subject matter hereof. No statement, representation, warranty, covenant or agreement of any kind not expressly set forth in this Agreement shall affect, or be used to interpret, change or restrict, the express terms and provisions of this Agreement. For the avoidance of doubt, as of the Effective Date, this Agreement fully supersedes and replaces any rights Executive

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may have under the Consulting Agreement dated September 15, 2025 between Company and Executive.
(g)
Counterparts. This Agreement may be executed in two or more counterparts, and by different parties hereto on separate counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. For all purposes a signature by fax shall be treated as an original.
(h)
Right to Consult with Counsel: Executive has the right to consult with counsel prior to entering into this Agreement.

[Signature Page to Follow]

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IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date first written above.

 

Debra Jeske Zack, MD, PhD

 

SPERO THERAPEUTICS, INC.

/s/ Debra Jeske Zack, MD, PhD

 

By:

/s/ Esther Rajavelu

 

 

 

 

Signature

 

Name: Esther Rajavelu

 

 

Title: Chief Executive Officer

 

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Exhibit 10.9

Termination Agreement

This Termination Agreement (“Agreement”) is entered into as of August 11, 2026 (the “Effective Date”) by and between:

EVEREST MEDICINES II LIMITED, a company incorporated under the laws of the Cayman Islands (“Everest”), with its registered office address at Vistra (Cayman) Limited, P.O. Box 31119, Grand Pavilion, Hibiscus Way, 802 West Bay Road, Grand Cayman, KY1-1205, Cayman Islands;

and

SPERO THERAPEUTICS, INC., a corporation organized under the laws of Delaware (“Spero”), with its principal place of business at 675 Massachusetts Avenue, 14th Floor, Cambridge, Massachusetts, 02139.

(Everest and Spero are each referred to herein as a “Party” and collectively as the “Parties”).

WHEREAS:

(A) Everest, Spero and its Affiliates entered into that certain License Agreement dated January 1, 2019 (the “Original License Agreement”), and the Amended and Restated License Agreement dated January 15, 2021 (the “A&R License Agreement”, collectively with the Original License Agreement, the “License Agreement”), the Material Transfer Agreement dated March 28, 2019 (the “MTA”) and the Pharmacovigilance Agreement dated June 30th, 2021, as amended by Amendment 1 to Pharmacovigilance Agreement dated as of March 11, 2022 (the “Pharmacovigilance Agreement”, collectively with the License Agreement and the MTA, the “Collaboration Agreements”), for the development and commercialization of the licensed compound SPR206 (the “Licensed Product”) within the Licensed Territory

(B) Spero has substantially ceased the development activities with respect to the License Product in its territory, and the Parties have mutually agreed to terminate the Collaboration Agreements and agree on terms regarding their respective rights and obligations relating to the subject matter as of the Effective Date, all as provided herein.

NOW THEREFORE, in consideration of the agreements and undertakings of the Parties set forth in this Agreement, and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, and intending to be legally bound, the Parties agree as follows.

1. Certain Defined Terms. Capitalized terms used herein and not otherwise defined shall have the meaning given to them in the Collaboration Agreements.

2. Termination of the Collaboration Agreements. The Parties hereby mutually agree that, the Collaboration Agreements are terminated pursuant to Section 12.2(a) of the A&R License Agreement, Section 6.1 of the MTA and Section 21 of the Pharmacovigilance Agreement, and shall have no further force or effect as of the Effective Date; provided, the provisions of the Collaboration Agreements that expressly survive termination, as set forth in the survival clauses of the Collaboration Agreements in Section 12.4 of the A&R License Agreement, Section 10.4 of the MTA and Section 18 of the Pharmacovigilance Agreement, shall continue in full force and effect in accordance with their terms.

3. No Outstanding Payments or Disputes. The Parties hereby acknowledge and confirm that, as of the Effective Date, to the Parties’ knowledge, there are no payments currently due and outstanding from either Party to the other Party related to or associated with the Collaboration Agreements. The Parties further acknowledge that as of the date hereof, there are no outstanding disputes, claims or controversies, nor any pending or threatened disputes between the Parties in connection with such Collaboration Agreements and Licensed Product.

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4. No Waiver. The Parties hereby acknowledge and agree that the Parties expressly reserve all rights and remedies available under the Collaboration Agreements and Applicable Law. This Agreement shall not be deemed a waiver of any such rights or remedies. The Parties hereby further agree that neither party shall be required or obligated to take any further action or undertake any responsibilities after the termination of Collaboration Agreements, except for the survival clauses as mentioned in Section 2 of this Agreement.

5. Entire Agreement. This Agreement contains the entire agreement between the Parties regarding the matters expressly specified herein, and to that extent supersedes all prior written and/ or oral agreements, communications, representations, and understandings. Neither Party is relying on any communications, representations, or understandings, other than those set forth in the four corners of this Agreement. The terms and conditions of this Agreement may not be altered, modified, changed or amended except by a written agreement executed by duly authorized representatives of both Spero and Everest.

 

6. Successors and Assigns. The Parties agree that their respective successors and assigns are entitled to the benefits of, and subject to the obligations created by, this Agreement.

7. Counterparts. The Parties agree that this Agreement may be executed by the Parties in counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. This Agreement may be executed by facsimile signatures or other electronic means and such signatures shall be deemed to bind each party as if they were original signatures, and that each Party had the opportunity to receive independent legal advice with respect to the advisability of executing this Agreement.

8. Authority To Execute Agreement. By signing below, each Party warrants and represents that the person signing this Agreement on its behalf has authority to bind that Party and that the Party's execution and performance of this Agreement has been authorized by all necessary corporate or other action.

9. No Admission of Liability. The Parties acknowledge that this Agreement was mutually agreed by the Parties, and nothing herein is or may be construed as an admission of fault or liability by either Party. This Agreement may not be offered as evidence in any proceeding except for enforcement of the terms hereof.

10. Further Assurances. Each Party shall perform (or procure the performance of) all further acts and things and execute and deliver (or procure the execution and delivery of) such further documents, as may be required by applicable law or under the Collaboration Agreements to implement and give effect to this Agreement. Each Party shall procure that each of its affiliates, successors and assigns, e.g. in a trust or whatever kind of other structure, respectively, complies with all obligations under this Agreement which are expressed to apply to any of its affiliates, successors and assigns.

11. Notices. Notices, demands and all other communications provided for or contemplated by this Agreement shall be in writing and shall be deemed to have been duly given when delivered either (i) personally, (ii) by overnight courier (e.g. FedEx, UPS), or (iii) by United States certified or registered mail, return receipt requested, postage prepaid, addressed as follows. Either party shall provide a timely notice to the party in case of any change of the address or contact information below.

 

To: Everest

 

EVEREST MEDICINES II LIMITED

 

36 Robinson Road, #20-01 City House, Singapore 068877

Copy to: 17F, AIA Financial Center, 866 Dongchangzhi Road

Hongkou District, Shanghai 200083 China

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Attn: Jason Brown / Legal Department

E-mail: jason.brown@everestmedicines.com / legal@everestmedicines.com

 

To: Spero

 

SPERO THERAPEUTICS, INC.

 

675 Massachusetts Avenue, 14th Floor

Cambridge, MA 02139

Attn: Legal Department

E-mail: Legal@sperotherapeutics.com

 

 

[Signagture Page Follows]

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IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed by their duly authorized representatives as of the date first written above.

 

EVEREST MEDICINES II LIMITED

 

By: /s/ Ian Wood
Name: Ian Wood
Title: President and CFO

 

SPERO THERAPEUTICS, INC.

 

By: /s/ Esther Rajavelu
Name: Esther Rajavelu
Title: Chief Executive Officer

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Exhibit 31.1

CERTIFICATIONS UNDER SECTION 302

I, Esther Rajavelu, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spero Therapeutics, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under my supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report my conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

 

Dated: August 12, 2026

/s/ Esther Rajavelu

 

Esther Rajavelu

 

President, Chief Executive Officer, Chief Financial Officer, Chief Business Officer and Treasurer

 

(Principal Executive, Financial and Accounting Officer)

 

 


 

Exhibit 32.1

CERTIFICATIONS UNDER SECTION 906

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Spero Therapeutics, Inc., a Delaware corporation (the “Company”), does hereby certify, to such officer’s knowledge, that:

The Quarterly Report for the quarter ended June 30, 2026 (the “Form 10-Q”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

 

Dated: August 12, 2026

/s/ Esther Rajavelu

 

Esther Rajavelu

 

President, Chief Executive Officer, Chief Financial Officer, Chief Business Officer and Treasurer

 

(Principal Executive, Financial and Accounting Officer)