TREX CO INC — Director's Dealing 2018

Feb 26, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2018-02-22

Reporting Person: Cline James E (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-22	Common Stock	M	9286	$12.78	Acquired	68736	Direct
2018-02-22	Common Stock	D	1117	$106.27	Disposed	67619	Direct
2018-02-22	Common Stock	S	300	$102.9167	Disposed	67319	Direct
2018-02-22	Common Stock	S	1500	$104.3233	Disposed	65819	Direct
2018-02-22	Common Stock	S	1800	$105.2956	Disposed	64019	Direct
2018-02-22	Common Stock	S	5300	$106.5217	Disposed	58719	Direct
2018-02-22	Common Stock	S	3187	$107.5529	Disposed	55532	Direct
2018-02-22	Common Stock	S	413	$108.3812	Disposed	55119	Direct
2018-02-22	Common Stock	S	500	$111.852	Disposed	54619	Direct
2018-02-22	Common Stock	S	500	$115.42	Disposed	54119	Direct
2018-02-23	Common Stock	S	7300	$105.9987	Disposed	46819	Direct
2018-02-23	Common Stock	S	869	$106.99	Disposed	45950	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-02-22	Stock Appreciation Right	$12.78	M	9286	Disposed	2022-02-15	Common Stock (9286)	Direct

Footnotes

F1: Stock Appreciation Rights are being exercised pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 24, 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 August 24, 2017.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.56 to $103.24, 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 (3) to this Form 4.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $103.88, to $104.75, inclusive.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $105.01 to $105.85, inclusive.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $$106.01 to $106.99, inclusive.

F7: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $107.01 to $108, inclusive.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $108.05 to $109.02, inclusive.

F9: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $111.20 to $112.97, inclusive.

F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $105.90 to $106.26, inclusive.