X0202 4 2008-05-30 0000918027 HI SHEAR TECHNOLOGY CORP HSR 0000926793 TRAHAN GEOGRE W 24225 GARNIER ST. TORRANCE, CA 90505 1 1 1 0 President & CEO Common Stock 2008-05-30 4 S 0 327 11.62 D 2479454 D Common Stock 2008-06-02 4 S 0 545 11.7957 D 2478909 D Common Stock 2008-06-03 4 S 0 491 11.5677 D 2478418 D Common Stock 2008-06-04 4 S 0 2073 12.6458 D 2476345 D Common Stock 2008-06-05 4 S 0 2127 12.326 D 2474218 D Common Stock sale pursuant to a 10b5-1 program. /s/ George W. Trahan 2008-06-05