X0206 3 2023-08-15 0 0000040211 GATX CORP GATX 0001989913 Hillesland Kevin 233 S. WACKER DR. CHICAGO IL 60606 false true false false SVP, Structured Finance Common Stock 7740.00 D 2018 NQ Stock Option (Right to Buy) 69.735 2019-01-25 2025-01-25 Common Stock 2200.00 D 2019 NQ Stock Option (Right to Buy) 71.525 2020-01-24 2026-01-24 Common Stock 2200.00 D 2020 NQ Stock Option (Right to Buy) 77.07 2021-01-31 2027-01-31 Common Stock 1900.00 D 2021 NQ Stock Option (Right to Buy) 91.36 2022-01-29 2028-01-29 Common Stock 1800.00 D 2022 NQ Stock Option (Right to Buy) 103.15 2023-01-28 2029-01-28 Common Stock 1700.00 D 2023 NQ Stock Option (Right to Buy) 113.28 2024-01-26 2030-01-26 Common Stock 2700.00 D 33.33% of Stock Option granted may be exercised commencing 1 year from the date of the grant, an additional 33.33% commencing 2 years from the date of the grant and the remaining 33.34% commencing 3 years from the date of the grant. Exhibit List: Exhibit 1 - Confirming Statement Lisa M. Ibarra, by Power of Attorney on behalf of Kevin Hillesland 2023-08-16