TREX CO INC — Director's Dealing 2011

Mar 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2011-03-01

Reporting Person: ANDREWS WILLIAM F (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-03-01	Common Stock	M	372	$19.25	Acquired	372	Direct
2011-03-01	Common Stock	M	406	$17.45	Acquired	778	Direct
2011-03-01	Common Stock	M	383	$18.99	Acquired	1161	Direct
2011-03-01	Common Stock	S	1161	$30.54	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-03-01	Stock Options (Right to Buy)	$19.25	M	372	Disposed	2011-07-02	Common Stock (372)	Direct
2011-03-01	Stock Options (Right to Buy)	$17.45	M	406	Disposed	2011-10-01	Common Stock (406)	Direct
2011-03-01	Stock Options (Right to Buy)	$18.99	M	383	Disposed	2012-01-02	Common Stock (383)	Direct