TREX CO INC — Director's Dealing 2017

Aug 16, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2017-08-15

Reporting Person: MERLOTTI FRANK H JR (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-08-15	Common Stock	M	2321	$7.43	Acquired	12640	Direct
2017-08-15	Common Stock	D	228	$75.77	Disposed	12412	Direct
2017-08-16	Common Stock	S	100	$75.33	Disposed	12312	Direct
2017-08-16	Common Stock	S	300	$75.49	Disposed	12012	Direct
2017-08-16	Common Stock	S	100	$75.4901	Disposed	11912	Direct
2017-08-16	Common Stock	S	100	$75.5001	Disposed	11812	Direct
2017-08-16	Common Stock	S	100	$75.64	Disposed	11712	Direct
2017-08-16	Common Stock	S	100	$75.77	Disposed	11612	Direct
2017-08-16	Common Stock	S	100	$75.78	Disposed	11512	Direct
2017-08-16	Common Stock	S	500	$75.80	Disposed	11012	Direct
2017-08-16	Common Stock	S	99	$75.81	Disposed	10913	Direct
2017-08-16	Common Stock	S	300	$75.82	Disposed	10613	Direct
2017-08-16	Common Stock	S	101	$75.85	Disposed	10512	Direct
2017-08-16	Common Stock	S	193	$75.89	Disposed	10319	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-08-15	Stock Appreciation Right	$7.43	M	2321	Disposed	2019-07-21	Common Stock (2321)	Direct

Footnotes

F1: Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 Exercise plan adopted by the reporting person on February 22, 2017.

F2: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Sales plan adopted by the reporting person on February 22, 2017.