GATX CORP — Director's Dealing 2012

Mar 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GATX CORP (GMT)
CIK: 0000040211
Period of Report: 2012-02-28

Reporting Person: LYONS ROBERT C (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-28	Common Stock	M	4000	$31.735	Acquired	23085	Direct
2012-02-28	Common Stock	M	4000	$24.17	Acquired	27085	Direct
2012-02-28	Common Stock	M	7700	$32.645	Acquired	34785	Direct
2012-02-28	Common Stock	F	12357	$43.9	Disposed	22428	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-28	2002 NQ Stock Option (Right to Buy)	$31.735	M	4000	Disposed	2012-04-26	Common Stock (4000)	Direct
2012-02-28	2002 NQ Stock Option (Right to Buy)	$24.17	M	4000	Disposed	2012-07-26	Common Stock (4000)	Direct
2012-02-28	2005 NQ Stock Option (Right to Buy)	$32.645	M	7700	Disposed	2012-03-25	Common Stock (7700)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock 401(k)	2237.632	Indirect

Footnotes

F1: GATX Corporation's 401(k) plan is a unitized stock fund made up of company stock plus short term investments. Because the fund includes more than company stock, participants purchase units of the fund rather than company shares of stock. The number of units held by a participant may vary depending on the performance of the company stock, the overall stock market, and the amount of short term investments in the fund. Such a variance has caused the value of the units in the reporting person's 401(k) fund to be reduced without any actual disposition of shares.