GATX CORP — Director's Dealing 2006

Nov 17, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2006-11-15

Reporting Person: DUDDY GAIL L (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-11-15	Common Stock	M	5000	$39.7188	Acquired	18101	Direct
2006-11-15	Common Stock	M	5000	$39.4688	Acquired	23101	Direct
2006-11-15	Common Stock	S	10000	$46	Disposed	13101	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-11-15	1998 NQ Stock Option (Right to Buy)	$39.7188	M	5000	Disposed	2008-07-24	Common Stock (5000)	Direct
2006-11-15	1999 NQ Stock Option (Right to Buy)	$39.4688	M	5000	Disposed	2009-07-23	Common Stock (5000)	Direct

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.