Company:  GATX CORP (GMT)
Form Type:  4
Filing Date:  5/3/2012 
CIK:  0000040211 
Address:  222 WEST ADAMS STREET 
City, State, Zip:  CHICAGO,  60606-5314 
Telephone:  (312) 621-6200 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$53.45  
Change: 
0.00 (0.00%)  
Trade Time: 
04:01 PM EST  
Market Cap: 
$2.50B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES