Annual report
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D. C. 20549 FORM 10 - K ( Mark One ) [ X ] Annual report pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the fiscal year ended May 31 , 2021 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 : 000-22893 . AEHR TEST SYSTEMS ( Exact name of registrant as specified in its charter ) CALIFORNIA ( State or other jurisdiction of incorporation or organization ) Title of each class Common Stock , par value $ 0.01 per share 400 KATO TERRACE , FREMONT , CA ( Address of principal executive offices ) Trading Symbol ( s ) Registrant's telephone number , including area code : ( 510 ) 623-9400 Securities registered pursuant to Section 12 ( b ) of the Act : AEHR 94-2424084 ( IRS Employer Identification Number ) 94539 ( Zip Code ) Securities registered pursuant to Section 12 ( g ) of the Act : None Name of each exchange on which registered Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes [ ] No [ X ] Yes [ X ] No [ ] The NASDAQ Capital Market Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Securities Act . Yes [ ] No [ X ] 1 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 ) .