TREX CO INC — Director's Dealing 2021

Nov 12, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2021-11-10

Reporting Person: Zambanini Adam Dante (President, Trex Residential Pr)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-11-10	Common Stock	M	4342	$17.52	Acquired	170973	Direct
2021-11-10	Common Stock	D	598	$127.26	Disposed	170375	Direct
2021-11-10	Common Stock	F	1689	$127.26	Disposed	168686	Direct
2021-11-11	Common Stock	S	2055	$127.89	Disposed	166631	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-11-10	Stock Appreciation Right	$17.52	M	4342	Disposed	2027-02-15	Common Stock (4342)	Direct

Footnotes

F1: Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 17, 2021.

F2: 1,689 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover the payment of taxes currently due on previously granted restricted shares.

F3: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on May 17, 2021.