GATX CORP — Director's Dealing 2010

Nov 29, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2010-11-24

Reporting Person: MUCKIAN WILLIAM M (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-24	Common Stock	M	4900	$24.365	Acquired	14387	Direct
2010-11-24	Common Stock	S	2269	$33.3	Disposed	12118	Direct
2010-11-24	Common Stock	S	931	$33.31	Disposed	11187	Direct
2010-11-24	Common Stock	S	775	$33.32	Disposed	10412	Direct
2010-11-24	Common Stock	S	400	$33.33	Disposed	10012	Direct
2010-11-24	Common Stock	S	100	$33.34	Disposed	9912	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-24	2004 NQ Stock Option (Right to Buy)	$24.365	M	4900	Disposed	2011-08-06	Common Stock (4900)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	5222.677	Indirect

Footnotes

F1: 50% of option granted may be exercised commencing 1 year from the date of the grant, an additional 25% commencing 2 years from the date of the grant and the remaining 25% commencing 3 years from the date of the grant.