TREX CO INC — Director's Dealing 2015

Aug 13, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2015-08-11

Reporting Person: Zambanini Adam Dante (Vice President, Marketing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-08-11	Common Stock	M	3708	$13.10	Acquired	27935	Direct
2015-08-11	Common Stock	M	4284	$12.78	Acquired	32219	Direct
2015-08-11	Common Stock	D	2480	$41.67	Disposed	29739	Direct
2015-08-11	Common Stock	F	1863	$41.67	Disposed	27876	Direct
2015-08-12	Common Stock	S	3649	$40.89	Disposed	24227	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-08-11	Stock Appreciation Right	$13.10	M	3708	Disposed	2022-02-16	Common Stock (3708)	Direct
2015-08-11	Stock Appreciation Right	$12.78	M	4284	Disposed	2022-02-15	Common Stock (4284)	Direct

Footnotes

F1: Stock Appreciation Rights are being exercised pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on May 11, 2015.

F2: 1,863 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 SARs.

F3: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on May 11, 2015.