The board of directors of GATX Corporation (NYSE:GATX) today declared a quarterly dividend of $0.66 per common share, payable September 30, 2026, to shareholders of record on September 15, 2026. This quarterly dividend is unchanged from the prior quarter.

COMPANY DESCRIPTION

At GATX Corporation (NYSE:GATX), we empower our customers to propel the world forward. GATX leases transportation assets including railcars, aircraft spare engines and tank containers to customers worldwide. Our mission is to provide innovative, unparalleled service that enables our customers to transport what matters safely and sustainably while championing the well-being of our employees and communities. Headquartered in Chicago, Illinois since its founding in 1898, GATX has paid a quarterly dividend, uninterrupted, since 1919.

AVAILABILITY OF INFORMATION ON GATX'S WEBSITE

Investors and others should note that GATX routinely announces material information to investors and the marketplace using SEC filings, press releases, public conference calls, webcasts and the GATX Investor Relations website. While not all of the information that the Company posts to the GATX Investor Relations website is of a material nature, some information could be deemed to be material. Accordingly, the Company encourages investors, the media and others interested in GATX to review the information that it shares on www.gatx.com under the "Investors" tab.

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FOR FURTHER INFORMATION CONTACT:

GATX Corporation

Shari Hellerman

Vice President

Investor Relations and Corporate Communications

312-621-4285

shari.hellerman@gatx.com