GATX Corporation entered into Amendment No. 1 among the Company, the banks, financial institutions and other institutional lenders parties thereto, and Citibank, N.A., as administrative agent, to its existing Five Year Credit Agreement, dated as of May 21, 2024 (as amended, supplemented, or otherwise modified from time to time, the Credit Agreement), among the Company, Citibank, N.A. and BofA Securities Inc., as joint lead arrangers and joint book managers, the lenders party thereto, and Citibank, N.A., as administrative agent. Pursuant to the Amendment, (i) the termination date of the Credit Agreement has been extended from May 21, 2030 to May 21, 2031, (ii) the applicable margin for borrowings bearing interest based on either the Secured Overnight Financing Rate (SOFR) or alternative base rate (ABR) was decreased such that revolving loans are priced by reference to a grid based on the Company's public credit rating with the margins ranging from 80.5 basis points to 130 basis points (for borrowings bearing interest based on SOFR) and 0 basis points to 30 basis points (for borrowings bearing interest based on ABR) and (iii) the facility fee payable by the Company to the lenders under the Credit Agreement was decreased such that it is priced by reference to a grid based on the Company's public credit rating with the applicable percentage ranging from 7 basis points to 20 basis points.