X0202 4 2007-02-12 0 0000866121 ALLIANT TECHSYSTEMS INC ATK 0001258118 WILSON THOMAS R ALLIANT TECHSYSTEMS INC. 5050 LINCOLN DRIVE EDINA MN 55436-1097 0 1 0 0 Sr VP Tidewater Opns Common Stock 2007-02-12 4 M 0 10000 57.43 A 14612 D Common Stock 2007-02-12 4 S 0 9340 87.50 D 5272 D Common Stock 2007-02-12 4 S 0 200 87.51 D 5072 D Common Stock 2007-02-12 4 S 0 2100 87.52 D 2972 D Common Stock 2007-02-12 4 S 0 100 87.53 D 2872 D Common Stock 440 I By 401(k) plan Employee Stock Option (right to buy) 57.43 2007-02-12 4 M 0 10000 0 D 2007-01-20 2011-01-20 Common Stock 10000 0 D The amount reported includes 2,000 shares subject to certain restrictions (including possible forfeiture) applicable to restricted stock awards under the Issuer's 1990 Equity Incentive Plan and 787 shares previously held in the Issuer's Employee Stock Purchase Plan. The Employee Stock Purchase Plan was discontinued June 30, 2006. Based on a plan statement as of December 31, 2006. /s/Thomas R. Wilson 2007-02-12