TREX CO INC — Director's Dealing 2018

May 8, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2018-05-02

Reporting Person: Gupp William R. (Sr VP,Gen. Counsel & Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-02	Common Stock	A	5466	$105.03	Acquired	41475	Direct

Footnotes

F1: This restricted stock unit award will vest in accordance with the terms of a Retention Agreement, dated May 2, 2018, between Trex Company, Inc. and William R. Gupp; as further described in the Company's Quarterly Report on Form 10-Q for the quarterly period ended on March 31, 2018.