TREX CO INC - Director's Dealing 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2013-04-04

Reporting Person: KAPLAN RONALD W (Director, President and CEO)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-04-04	Common Stock	S	100	$46.12	Disposed	111779	Direct
2013-04-04	Common Stock	S	112	$46.22	Disposed	111667	Direct
2013-04-04	Common Stock	S	4463	$46.50	Disposed	107204	Direct
2013-04-04	Common Stock	S	200	$46.55	Disposed	107004	Direct
2013-04-04	Common Stock	S	200	$46.56	Disposed	106804	Direct
2013-04-04	Common Stock	S	300	$46.58	Disposed	106504	Direct
2013-04-04	Common Stock	S	100	$46.60	Disposed	106404	Direct
2013-04-04	Common Stock	S	100	$46.61	Disposed	106304	Direct
2013-04-04	Common Stock	S	200	$46.79	Disposed	106104	Direct
2013-04-04	Common Stock	S	300	$46.63	Disposed	105804	Direct
2013-04-04	Common Stock	S	500	$46.81	Disposed	105304	Direct
2013-04-04	Common Stock	S	100	$46.80	Disposed	105204	Direct
2013-04-04	Common Stock	S	100	$46.82	Disposed	105104	Direct

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 20, 2013.