TREX CO INC — Director's Dealing 2012

Mar 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2012-03-01

Reporting Person: ROBINSON PATRICIA B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-01	Common Stock	M	313	$23.66	Acquired	1022	Direct
2012-03-01	Common Stock	M	240	$20.81	Acquired	1262	Direct
2012-03-01	Common Stock	S	200	$27.51	Disposed	1062	Direct
2012-03-01	Common Stock	S	200	$27.52	Disposed	862	Direct
2012-03-01	Common Stock	S	100	$27.44	Disposed	762	Direct
2012-03-01	Common Stock	S	53	$27.43	Disposed	709	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-03-01	Stock Options (Right to Buy)	$23.66	M	313	Disposed	2012-04-01	Common Stock (313)	Direct
2012-03-01	Stock Options (Right to Buy)	$20.81	M	240	Disposed	2012-07-01	Common Stock (240)	Direct