X0202 4 2007-05-01 0 0000026537 ARGON ST, Inc. STST 0001305064 Murdock Thomas E 12701 FAIR LAKES CIRCLE FAIRFAX VA 22033 1 1 1 0 Vice President Common Stock 2007-05-01 4 S 0 4038 D 468500 I Trust Common Stock 1893000 D Average price $26.8456 per share The sales were made pursuant to a 10b5-1 trading plan entered ino by Mr. Murdock on March 12, 2007. The shares were disposed of in multiple transactions on May 1, 2007 as follows: SHARES @ PRICE 138 @ 27.40 100 @ 27.35 200 @ 27.31 36 @ 27.24 300 @ 27.23 100 @ 27.21 64 @ 27.20 200 @ 27.18 300 @ 27.10 100 @ 27.08 200 @ 27.01 100 @ 26.94 200 @ 26.87 200 @ 26.77 100 @ 26.71 300 @ 26.63 300 @ 26.61 200 @ 26.58 100 @ 26.56 100 @ 26.46 400 @ 26.37 200 @ 26.36 100 @ 26.34 4,038 @ 26.8456 /S/ Thomas E. Murdock 2007-05-02