X0202 4 2006-05-16 0 0000866121 ALLIANT TECHSYSTEMS INC ATK 0001188448 PATINEAU PAULA J ALLIANT TECHSYSTEMS INC. 5050 LINCOLN DRIVE EDINA MN 55436-1097 0 1 0 0 Sr VP HR and Admin Services Common Stock 2006-05-16 4 M 0 6750 25.0556 A 13943 D Common Stock 2006-05-16 4 M 0 11250 27.389 A 25193 D Common Stock 2006-05-16 4 S 0 100 81.20 D 25093 D Common Stock 2006-05-16 4 S 0 700 81.18 D 24393 D Common Stock 2006-05-16 4 S 0 300 81.17 D 24093 D Common Stock 2006-05-16 4 S 0 900 81.16 D 23193 D Common Stock 2006-05-16 4 S 0 2900 81.15 D 20293 D Common Stock 2006-05-16 4 S 0 3000 81.14 D 17293 D Common Stock 2006-05-16 4 S 0 1300 81.13 D 15993 D Common Stock 2006-05-16 4 S 0 2500 81.12 D 13493 D Common Stock 2006-05-16 4 S 0 1300 81.11 D 12193 D Common Stock 2006-05-16 4 S 0 2100 81.10 D 10093 D Common Stock 2006-05-16 4 S 0 1400 81.09 D 8693 D Common Stock 2006-05-16 4 S 0 400 81.08 D 8293 D Common Stock 2006-05-16 4 S 0 400 81.07 D 7893 D Common Stock 2006-05-16 4 S 0 700 81.06 D 7193 D Common Stock 2536 I By 401(k) Plan Employee Stock Option (right to buy) 25.0556 2006-05-16 4 M 0 6750 0 D 2009-05-14 Common Stock 6750 0 D Employee Stock Option (right to buy) 27.389 2006-05-16 4 M 0 11250 0 D 2011-01-23 Common Stock 11250 0 D The amount reported includes 2,187 shares held in the Issuer's Employee Stock Purchase Plan as of March 31, 2006. Based on a plan statement dated March 31, 2006. Options became exercisable in three equal annual installments beginning 05/14/2000. Options became exercisable in three equal annual installments beginning 01/23/2002. /s/Paula J. Patineau 2006-05-18