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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1040470	Aehr Test Systems	AEHR	Instruments For Meas & Testing Of Electricity & Elec Signals (3825)	942424084

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1197808	M Mario Rosati	Aehr Test Systems 400 Kato Terrace Fremont CA 94539		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2018-10-02	10,000	$0.89	13,701	No	4	M	Direct
Common Stock	Disposition	2018-10-02	10,000	$2.18	3,701	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2018-10-02	10,000	$0.00	10,000	$0.89

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2011-11-25	2018-10-25	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	151,016	Indirect	By Trust
Common Stock	23,468	Indirect	By Trust
Common Stock	22,500	Indirect	See Footnote
Common Stock	27,000	Indirect	By Managed Account

Footnotes

Shares held by Mario M. Rosati, Trustee of the Mario M. Rosati Trust U/D/T dated January 5, 1990.
Shares held by Mario M. Rosati and Danelle Storm Rosati, Trustees of the Rosati Family Trust U/D/T dated May 23, 1997.
Shares held by WS Investment Company, LLC (2001A), for which Mr. Rosati is a general partner.
One twelfth (1/12) of the total number of shares became exercisable on this date and an additional one twelfth (1/12) of the total number of shares became exercisable each month thereafter.