Company:  ALLIANT TECHSYSTEMS INC (ATK)
Form Type:  4
Filing Date:  3/8/2012 
CIK:  0000866121 
Address:  7480 FLYING CLOUD DRIVE 
City, State, Zip:  MINNEAPOLIS, Minnesota 55344-3720 
Telephone:  (952) 351-3000 
Fiscal Year:  03/31 
Last Trade
Last Trade: 
$76.30  
Change: 
-1.25 (-1.61%)  
Trade Time: 
May 22  
Market Cap: 
$2.47B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES