TREX CO INC — Director's Dealing 2012

Nov 7, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2012-11-05

Reporting Person: ANDREWS WILLIAM F (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-05	Common Stock	M	231	$35.30	Acquired	13469	Direct
2012-11-05	Common Stock	M	258	$32.28	Acquired	13727	Direct
2012-11-05	Common Stock	S	231	$38.89	Disposed	13496	Direct
2012-11-05	Common Stock	S	258	$38.54	Disposed	13238	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-05	Stock Options (Right to Buy)	$35.30	M	231	Disposed	2013-01-02	Common Stock (231)	Direct
2012-11-05	Stock Options (Right to Buy)	$32.28	M	258	Disposed	2013-04-01	Common Stock (258)	Direct

Footnotes

F1: Stock Options are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 5, 2012.

F2: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 5, 2012.