X0306 4 2017-07-11 0 0001040470 AEHR TEST SYSTEMS AEHR 0001243930 BUCK CARL N C/O AEHR TEST SYSTEMS 400 KATO TERRACE FREMONT CA 94539 0 1 0 0 VP OF MARKETING Common Stock 2017-07-11 4 A 0 3750 0 A 114198 I By Trust Incentive Stock Option (right to buy) 3.93 2017-07-11 4 A 0 11250 0 A 2017-08-11 2024-07-11 Common Stock 11250 11250 D One-sixteenth (1/16) of the total number of shares subject to the restricted stock unit awards shall become exercisable 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. One forty-eighth (1/48) of the total number of shares became exercisable on this date and an additional one forty-eighth (1/48) of the total number of shares became exercisable each month thereafter. Carl N. Buck 2017-07-13