GATX CORP — Director's Dealing 2006

Oct 26, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2006-10-24

Reporting Person: KENNEY BRIAN A (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-10-24	Common Stock	M	6000	$23.9375	Acquired	43832.27	Direct
2006-10-24	Common Stock	F	4090	$43.59	Disposed	39742.27	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-10-24	1996 NQ Stock Option (Right to Buy)	$23.9375	M	6000	Disposed	2006-10-25	Common Stock (6000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	5729.752	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: Mr. Kenney paid the exercise price of his options by tendering 3,294 shares of GATX Corporation common stock which he had held for at least six months. Mr. Kenney likewise satisfied a portion of his tax withholding obligations by having 796 shares of GATX common stock withheld upon the exercise of his options.