GATX CORP — Director's Dealing 2011

May 11, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2011-05-10

Reporting Person: Lawler Mary Katherine (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-10	Common Stock	S	400	$42.14	Disposed	2855	Direct
2011-05-10	Common Stock	S	745	$42.1315	Disposed	2110	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	448.193	Indirect