X0609 4 2026-07-01 0001040470 AEHR TEST SYSTEMS AEHR 0001364097 Erickson Gayn false C/O AEHR TEST SYSTEMS 400 KATO TERRACE FREMONT CA 94539 true true President and CEO false Common Stock 2026-07-01 4 A false 35886 0 A 220546 D Common Stock 2026-07-01 4 A false 11899 0 A 232445 D Common Stock 2026-07-01 4 F false 22925 84.425 D 209520 D Common Stock 2026-07-02 4 F false 3091 69.96 D 206429 D Common Stock 197723 I By Trust Represents shares of common stock issued upon vesting of performance-based RSU. The amount reported includes shares subject to unvested restricted stock units and unvested restricted shares. One-sixteenth (1/16) of the total number of shares subject to the restricted stock unit awards shall vest at the end of each three full calendar months following the date of this action, provided that such recipient is still employed by the corporation on such dates. Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. /s/Chris Siu, Attorney-in-Fact 2026-07-02