TREX CO INC — Director's Dealing 2017

Nov 15, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2017-11-14

Reporting Person: MERLOTTI FRANK H JR (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-11-14	Common Stock	M	2321	$7.43	Acquired	12640	Direct
2017-11-14	Common Stock	D	163	$106.30	Disposed	12477	Direct
2017-11-15	Common Stock	S	100	$105.01	Disposed	12377	Direct
2017-11-15	Common Stock	S	100	$105.20	Disposed	12277	Direct
2017-11-15	Common Stock	S	100	$105.22	Disposed	12177	Direct
2017-11-15	Common Stock	S	100	$105.28	Disposed	12077	Direct
2017-11-15	Common Stock	S	100	$105.33	Disposed	11977	Direct
2017-11-15	Common Stock	S	100	$105.37	Disposed	11877	Direct
2017-11-15	Common Stock	S	100	$105.38	Disposed	11777	Direct
2017-11-15	Common Stock	S	100	$105.46	Disposed	11677	Direct
2017-11-15	Common Stock	S	400	$105.48	Disposed	11277	Direct
2017-11-15	Common Stock	S	100	$105.50	Disposed	11177	Direct
2017-11-15	Common Stock	S	258	$105.65	Disposed	10919	Direct
2017-11-15	Common Stock	S	200	$105.73	Disposed	10719	Direct
2017-11-15	Common Stock	S	99	$105.76	Disposed	10620	Direct
2017-11-15	Common Stock	S	100	$105.77	Disposed	10520	Direct
2017-11-15	Common Stock	S	100	$105.79	Disposed	10420	Direct
2017-11-15	Common Stock	S	1	$105.80	Disposed	10419	Direct
2017-11-15	Common Stock	S	99	$105.82	Disposed	10320	Direct
2017-11-15	Common Stock	S	1	$105.85	Disposed	10319	Direct
2017-11-15	Common Stock	G	283	—	Disposed	10036	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-11-14	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.

F3: Represents in-kind charitable gift of common stock.