FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
ROSATI MARIO M
  2. Issuer Name and Ticker or Trading Symbol
AEHR TEST SYSTEMS [AEHR]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
AEHR TEST SYSTEMS, 400 KATO TERRACE
3. Date of Earliest Transaction (Month/Day/Year)
01/18/2019
(Street)

FREMONT, CA 94539
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/18/2019   M   30,179 A $ 0.75 33,880 D  
Common Stock 01/18/2019   S   30,179 D $ 1.1298 3,701 D  
Common Stock               151,016 I By Trust (1)
Common Stock               23,468 I By Trust (2)
Common Stock               22,500 I See Footnote (3)
Common Stock               27,000 I By Managed Account

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) $ 0.75 01/18/2019   M     30,179 02/29/2012(4) 01/31/2019 Common Stock 30,179 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ROSATI MARIO M
AEHR TEST SYSTEMS
400 KATO TERRACE
FREMONT, CA 94539
  X      

Signatures

 Kenneth B. Spink, Attorney-in-fact   01/22/2019
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Shares held by Mario M. Rosati, Trustee of the Mario M. Rosati Trust U/D/T dated January 5, 1990.
(2) Shares held by Mario M. Rosati and Danelle Storm Rosati, Trustees of the Rosati Family Trust U/D/T dated May 23, 1997.
(3) Shares held by WS Investment Company, LLC (2001A), for which Mr. Rosati is a general partner.
(4) One sixth (1/6) of the total number of shares became exercisable on this date and an additional one sixth (1/6) of the total number of shares became exercisable each month thereafter.

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