TREX CO INC — Director's Dealing 2013

Feb 22, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2013-02-20

Reporting Person: GRATZ JAY M (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-20	Common Stock	M	1123	$11.12	Acquired	2361	Direct
2013-02-20	Common Stock	M	1643	$8.52	Acquired	4004	Direct
2013-02-20	Common Stock	M	1656	$8.28	Acquired	5660	Direct
2013-02-20	Common Stock	M	999	$11.11	Acquired	6659	Direct
2013-02-20	Common Stock	M	5938	$10.61	Acquired	12597	Direct
2013-02-20	Common Stock	M	1165	$8.49	Acquired	13762	Direct
2013-02-20	Common Stock	M	696	$13.06	Acquired	14458	Direct
2013-02-20	Common Stock	M	3482	$14.86	Acquired	17940	Direct
2013-02-20	Common Stock	D	3881	$47.73	Disposed	14059	Direct
2013-02-21	Common Stock	S	12821	$45.3524	Disposed	1238	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-20	Stock Appreciation Right	$11.12	M	1123	Disposed	2017-10-01	Common Stock (1123)	Direct
2013-02-20	Stock Appreciation Right	$8.52	M	1643	Disposed	2018-01-02	Common Stock (1643)	Direct
2013-02-20	Stock Appreciation Right	$8.28	M	1656	Disposed	2018-04-01	Common Stock (1656)	Direct
2013-02-20	Stock Appreciation Right	$11.11	M	999	Disposed	2018-07-01	Common Stock (999)	Direct
2013-02-20	Stock Appreciation Right	$10.61	M	5938	Disposed	2018-07-22	Common Stock (5938)	Direct
2013-02-20	Stock Appreciation Right	$8.49	M	1165	Disposed	2019-04-01	Common Stock (1165)	Direct
2013-02-20	Stock Appreciation Right	$13.06	M	696	Disposed	2019-07-01	Common Stock (696)	Direct
2013-02-20	Stock Appreciation Right	$14.86	M	3482	Disposed	2019-07-21	Common Stock (3482)	Direct

Footnotes

F1: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $44.88 to $45.78, inclusive. The reporting person undertakes to provide the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4.