Company:  TRIMAS CORP (TRS)
Form Type:  4
Filing Date:  3/5/2012 
CIK:  0000842633 
Address:  39400 WOODWARD AVENUE, SUITE 130 
City, State, Zip:  BLOOMFIELD HILLS, Michigan 48304 
Telephone:  (248) 631-5400 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$32.40  
Change: 
-0.07 (-0.22%)  
Trade Time: 
May 17  
Market Cap: 
$1.29B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES