X0508 4 2025-02-04 false 0000040211 GATX CORP GATX 0001750272 Zmudka Robert 233 S. WACKER DR. CHICAGO IL 60606 false true false false Sr. VP & Chief Comm. Off. false Common Stock 2025-02-04 4 M false 4800.00 91.36 A 12293.00 D Common Stock 2025-02-04 4 S false 2800.00 163.5631 D 9493.00 D Common Stock 2025-02-04 4 S false 2000.00 164.2094 D 7493.00 D Common Stock 401(k) 408.00 I 401(k) 2021 NQ Stock Option (Right to Buy) 91.36 2025-02-04 4 M false 4800.00 0.00 D 2022-01-29 2028-01-29 Common Stock 4800.00 0.00 D Represents the weighted average sale price. The highest price at which shares were sold was $163.9214 and the lowest price at which shares were sold was $162.9300. Information regarding the number of shares sold at each separate price will be made available from the reporting person upon request by the SEC, the issuer or its shareholders. Represents the weighted average sale price. The highest price at which shares were sold was $164.4500 and the lowest price at which shares were sold was $163.9389. Information regarding the number of shares sold at each separate price will be made available from the reporting person upon request by the SEC, the issuer or its shareholders. Lisa M. Ibarra, by Power of Attorney on behalf of Robert Zmudka 2025-02-06