TREX CO INC — Director's Dealing 2014

Jul 9, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2014-07-07

Reporting Person: MERLOTTI FRANK H JR (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-07-07	Common Stock	M	692	$12.35	Acquired	5490	Direct
2014-07-07	Common Stock	M	1334	$12.085	Acquired	6824	Direct
2014-07-07	Common Stock	M	2446	$9.025	Acquired	9270	Direct
2014-07-07	Common Stock	D	1584	$29.54	Disposed	7686	Direct
2014-07-08	Common Stock	S	1190	$29.3101	Disposed	6496	Direct
2014-07-08	Common Stock	S	100	$28.41	Disposed	6396	Direct
2014-07-08	Common Stock	S	100	$28.4125	Disposed	6296	Direct
2014-07-08	Common Stock	S	398	$28.49	Disposed	5898	Direct
2014-07-08	Common Stock	S	200	$28.51	Disposed	5698	Direct
2014-07-08	Common Stock	S	34	$28.555	Disposed	5664	Direct
2014-07-08	Common Stock	S	66	$28.66	Disposed	5598	Direct
2014-07-08	Common Stock	S	100	$28.79	Disposed	5498	Direct
2014-07-08	Common Stock	S	100	$28.80	Disposed	5398	Direct
2014-07-08	Common Stock	S	100	$28.92	Disposed	5298	Direct
2014-07-08	Common Stock	S	100	$28.94	Disposed	5198	Direct
2014-07-08	Common Stock	S	100	$29.00	Disposed	5098	Direct
2014-07-08	Common Stock	S	100	$29.0025	Disposed	4998	Direct
2014-07-08	Common Stock	S	3	$29.06	Disposed	4995	Direct
2014-07-08	Common Stock	S	97	$29.065	Disposed	4898	Direct
2014-07-08	Common Stock	S	100	$29.09	Disposed	4798	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-07-07	Stock Appreciation Right	$12.35	M	692	Disposed	2016-07-20	Common Stock (692)	Direct
2014-07-07	Stock Appreciation Right	$12.085	M	1334	Disposed	2016-02-08	Common Stock (1334)	Direct
2014-07-07	Stock Appreciation Right	$9.025	M	2446	Disposed	2017-07-18	Common Stock (2446)	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 25, 2014.

F2: On May 7, 2014, the Company effectuated a two-for-one stock split to common shareholders of record on April 7, 2014. The amounts set forth in this Form 4 and all subsequent reports filed report the amounts adjusted to reflect the stock split.

F3: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Sales plan adopted by the reporting person on February 25, 2014.

F4: The stock appreciation right becomes exerciseable on the one-year anniversary of this grant.