TRINITY INDUSTRIES INC — Director's Dealing 2011

May 9, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TRINITY INDUSTRIES INC (NYSE/TRN)
CIK: 0000099780
Period of Report: 2011-05-05

Reporting Person: WALLACE TIMOTHY R (Director, Chairman, CEO & President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-05	Common Stock	S	57688	$33.00	Disposed	0	Indirect
2011-05-05	Common Stock	M	20550	$18.94	Acquired	1047793	Direct
2011-05-05	Common Stock	M	17700	$17.94	Acquired	1065493	Direct
2011-05-05	Common Stock	F	25780	$33.05	Disposed	1039713	Direct
2011-05-06	Common Stock	S	42507	$33.34	Disposed	997206	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-05	Employee Stock Option (right-to-buy)	$18.94	M	20550	Disposed	2014-05-10	Common Stock (20550)	Direct
2011-05-05	Employee Stock Option (right-to-buy)	$17.94	M	17700	Disposed	2015-05-09	Common Stock (17700)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1763	Indirect

Footnotes

F1: Option Term is Ten Years. Options vest over 5 years at twenty percent (20%) per year beginning on the first anniversary of the grant date.