GATX CORP — Director's Dealing 2006

Dec 4, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2006-11-30

Reporting Person: Scott S Yvonne (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-11-30	Common Stock	M	3000	$33.4688	Acquired	8589	Direct
2006-11-30	Common Stock	M	2500	$21.85	Acquired	11089	Direct
2006-11-30	Common Stock	M	1125	$24.365	Acquired	12214	Direct
2006-11-30	Common Stock	S	6625	$45.7843	Disposed	5589	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-11-30	1997 NQ Stock Option (Right to Buy)	$33.4688	M	3000	Disposed	2007-10-24	Common Stock (3000)	Direct
2006-11-30	2003 NQ Stock Option (Right to Buy)	$21.85	M	2500	Disposed	2013-08-01	Common Stock (2500)	Direct
2006-11-30	2004 NQ Stock Option (Right to Buy)	$24.365	M	1125	Disposed	2011-08-06	Common Stock (1125)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	2825.805	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.

F2: 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.

F3: 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.