GATX Sr VP & Treasurer Jennifer Van Aken Exercises Options, Sells Shares

What Happened
Jennifer Van Aken, Senior Vice President, Treasurer & Chief Risk Officer of GATX Corp (GATX), exercised 1,700 shares of a derivative (code M) at $77.07 on 2026-08-03 (cost $131,019) and sold 1,700 shares the same day in two open-market transactions for total proceeds of $307,200 (1,372 shares at a weighted $180.58 and 328 shares at a weighted $181.23). The sales and the exercise occurred on 2026-08-03.

Key Details

• Transaction date: 2026-08-03 (filed 2026-08-04; report appears timely)
• Exercise: 1,700 shares at $77.07 each; total exercise cost $131,019
• Sales: 1,372 shares at $180.58 (proceeds $247,758) and 328 shares at $181.23 (proceeds $59,442); combined proceeds $307,200
• Net proceeds before taxes/fees: approximately $176,181 (proceeds minus exercise cost)
• Footnotes: F1 and F2 note the reported sale prices are weighted averages; highest/lowest sale prices in the ranges are provided and share-by-share breakdown is available on request
• Shares owned after the transactions: not reported in the provided filing excerpt

Context
This was an exercise of derivative awards (option exercise, code M) followed by immediate open-market sales of the exercised shares — effectively a cashless exercise where all shares acquired were sold the same day. Such paired exercise-and-sell transactions are common for executives managing option vesting and tax obligations; the filing is factual and does not by itself indicate the insider’s view of the company.