GATX CORP — Director's Dealing 2011

May 4, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2011-05-02

Reporting Person: Arvia Anne L (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-02	Common Stock	A	488.2682	$42.175	Acquired	6184.2876	Direct

Footnotes

F1: Includes 43.6920 shares acquired pursuant to a dividend reinvestment feature of the GATX Directors' Phantom Stock Plan ("Phantom Stock Plan").

F2: Includes that portion of the quarterly payment of the annual directors' fee (444.5762 shares) credited to an account established for each director under the GATX Directors' Phantom Stock Plan ("Phantom Stock Plan") which in each case will be settled in common stock upon the expiration of the director's service on the Board.