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: Lawler Mary Katherine (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-02	Common Stock	M	6933	$16.685	Acquired	7597	Direct
2011-05-02	Common Stock	F	4042	$42.62	Disposed	3555	Direct
2011-05-03	Common Stock	S	200	$42.52	Disposed	3355	Direct
2011-05-03	Common Stock	S	100	$42.53	Disposed	3255	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-02	Stock-Settled Stock Appreciation Right	$16.685	M	6933	Disposed	2016-03-04	Common Stock (6933)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	448.15	Indirect