As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 5/10/24  Arvia Anne L                      4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/9/24  Arvia Anne L                      144                    1:4K   GATX Corp.                        Charles Schwab … Svcs/FA 
  5/2/24  Yovovich Paul G                   4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Sutherland David                  4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Stanley Adam L.                   4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Ream James B                      4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Holmes John McClain III           4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Bausch Shelley J                  4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Arvia Anne L                      4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
  5/2/24  Aigotti Diane                     4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Yovovich Paul G                   4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Sutherland David                  4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Stanley Adam L.                   4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Ream James B                      4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Holmes John McClain III           4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Bausch Shelley J                  4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Arvia Anne L                      4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  Aigotti Diane                     4          Director²   1:5K   GATX Corp.                        Solium Capital Inc.      
 4/30/24  GATX Corp.                        8-K:5       4/26/24   11:207K                                                            
 4/26/24  GATX Corp.                        10-Q        3/31/24   64:13M                                                             

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¹	Filing/Form Types:  -K
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	10-Q	Quarterly Report — Form 10-Q.
	144	Notice of a Proposed Sale of Securities by an Insider — Form 144 { The Filer is an Insider² of the Issuer }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.