GATX CORP — Director's Dealing 2005

Aug 13, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2005-08-11

Reporting Person: Earl James F (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-08-11	Common Stock	M	2000	$23.7813	Acquired	20085.59	Direct
2005-08-11	Common Stock	M	4000	$23.9375	Acquired	24085.59	Direct
2005-08-11	Common Stock	M	4000	$33.4688	Acquired	28085.59	Direct
2005-08-11	Common Stock	M	3500	$30.4688	Acquired	31585.59	Direct
2005-08-11	Common Stock	S	13500	$39.8546	Disposed	18085.59	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-08-11	1995 NQ Stock Option (Right to Buy)	$23.7813	M	2000	Disposed	2005-10-27	Common Stock (2000)	Direct
2005-08-11	1996 NQ Stock Option (Right to Buy)	$23.9375	M	4000	Disposed	2006-10-25	Common Stock (4000)	Direct
2005-08-11	1997 NQ Stock Option (Right to Buy)	$33.4688	M	4000	Disposed	2007-10-24	Common Stock (4000)	Direct
2005-08-11	2000 NQ Stock Option (Right to Buy)	$30.4688	M	3500	Disposed	2010-03-10	Common Stock (3500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	6235.53	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.

F4: 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.