GATX CORP — Director's Dealing 2006

Mar 14, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2006-03-10

Reporting Person: MUCKIAN WILLIAM M (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-03-10	Stock-Settled Stock Appreciation Right	$38.625	A	4000	Acquired	2013-03-10	Common Stock (4000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5558	Direct
Common Stock 401(k)	4545.756	Indirect

Footnotes

F1: 50% of Stock-Settled Stock Appreciation Right 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.