TREX CO INC — Director's Dealing 2020

May 6, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2020-05-06

Reporting Person: Cline James E (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-06	Common Stock	S	800	$106.8706	Disposed	60016	Direct
2020-05-06	Common Stock	S	8400	$107.7967	Disposed	51616	Direct
2020-05-06	Common Stock	S	1200	$108.8467	Disposed	50416	Direct
2020-05-06	Common Stock	S	1700	$109.5309	Disposed	48716	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 11, 2019.

F2: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $106.30 to $107.29, inclusive.

F3: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.31 to $108.30, inclusive.

F4: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.34 to $109.27, inclusive.

F5: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.36 to $110.34, inclusive.