Shareholders' Equity

12 Months Ended

Dec. 31, 2025

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

On January 25, 2019, our Board approved a $300 million share repurchase program (the "Prior Repurchase Program"), pursuant to which we were authorized to purchase shares of our common stock in the open market, in privately negotiated transactions, or otherwise, including pursuant to Rule 10b5-1 plans. During 2025, we repurchased 416,699 shares of common stock for $65.0 million under the Prior Repurchase Program, compared to 167,452 shares for $21.9 million in 2024 and 24,520 shares of common stock for $2.6 million in 2023.

On February 18, 2026, the Board terminated the Prior Repurchase Program and approved a new $300.0 million share repurchase program (the "New Repurchase Program"), pursuant to which we are authorized to purchase shares of our common stock in the open market, in privately negotiated transactions, or otherwise, including pursuant to Rule 10b5-1 plans. The New Repurchase Program does not have an expiration date, does not obligate the Company to repurchase any dollar amount or number of shares of common stock, and may be suspended or discontinued at any time. The timing of share repurchases will be dependent on market conditions and other factors.

In accordance with our certificate of incorporation,120 million shares of common stock are authorized, at a par value of $0.625 per share. As of December 31, 2025, 69.3 million shares were issued and 35.4 million shares were outstanding.

The following shares of common stock were reserved as of December 31, 2025 (in millions):

GATX Corporation 2004 Equity Incentive Compensation Plan	2.1
GATX Corporation 2012 Amended and Restated Incentive Award Plan	4.6
Total	6.7

Our certificate of incorporation also authorizes five million shares of preferred stock at a par value of $1.00 per share. We had no outstanding shares of preferred stock as of December 31, 2025 or December 31, 2024.