GATX CORP — Director's Dealing 2007

May 17, 2007

SEC Form 4/A — Form 4/A

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2007-05-09

Reporting Person: DUDDY GAIL L (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-05-09	Common Stock	S	1833	$50.5	Disposed	14275	Direct

Footnotes

F1: Form 4 filed on May 10, 2007 erroneously reported the number of shares sold as 1,083 shares.