GATX CORP — Director's Dealing 2005

Feb 4, 2005

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2004-12-31

Reporting Person: MUCKIAN WILLIAM M (Vice President-Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-12-31	Common Stock - 401(k)	A	45.55	$29.56	Acquired	4231.18	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1061.30	Direct

Footnotes

F1: Includes 32.0242 shares acquired through the Employee Stock Purchase Plan.

F2: These shares were acquired during the fiscal year (1/1 - 12/31) pursuant to the GATX 401(k) plan.

F3: The price of the stock is based on the closing price on 12/31