Company:  GATX CORP (GMT)
Form Type:  10-Q
Filing Date:  5/1/2012 
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: 
$51.90  
Change: 
-0.30 (-0.58%)  
Trade Time: 
May 23  
Market Cap: 
$2.43B
Description of Business
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  FORM 10-Q
    PART I - FINANCIAL INFORMATION
      Item 1. Financial Statements
        BALANCE SHEET
        CASH FLOW
        INCOME STATEMENT
      Item 2. Management's Discussion and Analysis of Financial ...
      FINANCIAL STATEMENTS
        BALANCE SHEET
      Item 3. Quantitative and Qualitative Disclosures about ...
      Item 4. Controls and Procedures
    PART II - OTHER INFORMATION
      Item 1. Legal Proceedings
      Item 1A. Risk Factors
      Item 6. Exhibits
    SIGNATURE
    EXHIBIT INDEX
  EXHIBIT 10.1
  EXHIBIT 31.(A)
    Certification of Principal Executive Officer
  EXHIBIT 31.(B)
    Certification of Principal Financial Officer
  EXHIBIT 32
    CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350