X0609 4 2026-09-03 false 0000040211 GATX CORP GATX 0001989421 Phillips Geoffrey false 233 S WACKER DRIVE CHICAGO IL 60606 false true false false Sr. VP, Operations false Common Stock 2026-09-03 4 G false 6472.00 0.00 D 1.00 D Common Stock 6472.00 I By Geoffrey D Phillips Living Trust U/A DTD 06/18/2021 On September 3, 2026, the reporting person transferred 6,472 shares of GATX common stock to the Geoffrey D Phillips Living Trust U/A DTD 06/18/2021 for no consideration. The reporting person is the trustee of the trust, and members of his immediate family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securities held by the trust. Lisa M. Ibarra, by Power of Attorney on behalf of Geoffrey Phillips 2026-09-04