144 0001736207 XXXXXXXX LIVE 0001040470 AEHR TEST SYSTEMS 000-22893 400 KATO TERRACE FREMONT CA 94539 5106239400 RICHMOND DONALD P. II Officer Common Charles Schwab Corp.

3000 Schwab Way Westlake TX 76262

32762 2164585.00 31453254 04/09/2026 Nasdaq Common 07/13/2023 Employee Stock Purchase Plan Shares Issuer N 45789 07/13/2023 Pay Roll Deduction Common 04/25/2025 Stock Grant as part of an ESOP (Employee Stock Ownership Plan) Issuer N 17011 06/09/2025 Equity Compensation Y Client acquired 45,789 shares on various dates between 7/13/2023 thru 4/2/2026 as part of his Employee Stock Purchase Plan 04/09/2026 Donald P. Richmond II