GATX CORP — Director's Dealing 2005

Aug 16, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2005-08-12

Reporting Person: DAMMEYER RODNEY F (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-08-12	Common Stock	M	1000	$31.735	Acquired	10497.6454	Direct
2005-08-12	Common Stock	S	1000	$40.7107	Disposed	9497.6454	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-08-12	2002 NQ Stock Option (Right to Buy)	$31.735	M	1000	Disposed	2012-04-26	Common Stock (1000)	Direct

Footnotes

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