TREX CO INC — Director's Dealing 2013

Nov 14, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2013-11-12

Reporting Person: Reese F Timothy (Sr. Vice President, Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-11-12	Common Stock	M	6175	$17.41	Acquired	48983	Direct
2013-11-12	Common Stock	D	1592	$67.53	Disposed	47391	Direct
2013-11-12	Common Stock	F	2187	$67.53	Disposed	45204	Direct
2013-11-14	Common Stock	S	2396	$69.30	Disposed	42808	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-11-12	Stock Appreciation Right	$17.41	M	6175	Disposed	2020-02-17	Common Stock (6175)	Direct

Footnotes

F1: 6,175 Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 SAR Exercise plan adopted by the reporting person on August 7, 2013.

F2: 2,187 shares are being surrendered as allowed by the Company's 2005 Stock Incentive Plan to cover the payment of taxes currently due on the exercise of stock appreciation rights.

F3: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 7, 2013.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.64 to $69.84, inclusive. The reporting person undertakes to provide Trex Company, Inc., any security holder of Trex Company, Inc., 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 ranges set forth in Footnote (4) to this Form 4.