X0202 3 2004-10-20 0 0000866121 ALLIANT TECHSYSTEMS INC ATK 0001305457 Ross Keith D ALLIANT TECHSYSTEMS 5050 LINCOLN DRIVE EDINA MN 55436-1097 0 1 0 0 Sr VP Gen Counsel & Secy Common Stock 4072.4113 D Common Stock 314.102 I By 401(k) Employee Stock Option (right to buy) 47.7467 2012-01-22 Common Stock 3000 D Employee Stock Option (right to buy) 59.12 2013-01-21 Common Stock 5000 D Employee Stock Option (right to buy) 57.43 2007-01-20 2011-01-20 Common Stock 4000 D Phantom Stock Common Stock 72.2101 D Includes 3,000 shares which are subject to certain restrictions (including possible forfeiture) applicable to restricted stock grants under the Issuer's 1990 Equity Incentive Plan and 63.4113 shares held in the Issuer's Employee Stock Purchase Plan as of 09/30/2004. 1-for-1. Options became exercisable in three equal installments beginning 01/22/2003. Options became exercisable in three equal installments beginning 01/21/2004. The Phantom Stock Units are payable in cash following the reporting person's termination of employment or such other date specified by the reporting person. However, the reporting person may elect to transfer funds into other investment accounts within the Nonqualified Deferred Compensation Plan from time to time. /s/Keith D. Ross 2004-10-20