X0202 5 2006-09-30 0 0 0 0000026537 ARGON ST, Inc. STST 0001250606 IRVIN JOHN 1620 BLACKBURN HEIGHTS DRIVE SEWICKLEY PA 15143 1 0 0 0 common stock 2004-04-25 5 D 0 L 2000 18.32 D 27121 D common stock 2004-11-17 5 D 0 L 200 25.79 D 27121 D common stock 2005-01-03 5 D 0 L 600 33.00 D 27121 D common stock 2005-05-27 5 D 0 L 700 33.70 D 27121 D common stock 2005-07-29 5 D 0 L 1000 34.79 D 27121 D common stock 2005-10-21 5 D 0 L 1200 26.84 D 24621 D common stock 2005-12-29 5 D 0 L 1500 30.50 D 24621 D /s/ John Irvin 2006-01-11