TRINITY INDUSTRIES INC — Director's Dealing 2007

May 21, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TRINITY INDUSTRIES INC (NYSE/TRN)
CIK: 0000099780
Period of Report: 2007-05-17

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-05-17	Common Stock	M	30000	$35.33	Acquired	1015787	Direct
2007-05-17	Common Stock	M	57750	$26.21	Acquired	1073537	Direct
2007-05-17	Common Stock	M	20550	$18.94	Acquired	1094087	Direct
2007-05-17	Common Stock	M	8850	$17.94	Acquired	1102937	Direct
2007-05-17	Common Stock	F	85373	$46.48	Disposed	1017564	Direct
2007-05-18	Common Stock	M	30000	$35.33	Acquired	166594	Indirect
2007-05-18	Common Stock	M	22500	$26.21	Acquired	189094	Indirect
2007-05-18	Common Stock	S	87100	$46.39	Disposed	101994	Indirect
2007-05-21	Common Stock	S	32636	$46.48	Disposed	69358	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-05-17	Employee Stock Option (right to buy)	$35.33	M	30000	Disposed	2008-03-12	Common Stock (30000)	Direct
2007-05-17	Employee Stock Option (right to buy)	$26.21	M	57750	Disposed	2008-12-07	Common Stock (57750)	Direct
2007-05-17	Employee Stock Option (right to buy)	$18.94	M	20550	Disposed	2014-05-10	Common Stock (61650)	Direct
2007-05-17	Employee Stock Option (right to buy)	$17.94	M	8850	Disposed	2015-05-09	Common Stock (35400)	Direct
2007-05-18	Employee Stock Option (right to buy)	$35.33	M	30000	Disposed	2008-03-12	Common Stock (30000)	Indirect
2007-05-18	Employee Stock Option (right to buy)	$26.21	M	22500	Disposed	2008-12-07	Common Stock (22500)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1762	Indirect
Common Stock	57688	Indirect

Footnotes

F1: Option Term is Ten Years. Options vest over 4 years at twenty-five percent (25%) per year beginning on the first anniversary of the grant date.

F2: 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.