TREX CO INC — Director's Dealing 2021

May 13, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2021-05-12

Reporting Person: FAIRBANKS BRYAN HORIX (President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-12	Common Stock	S	1202	$99.38	Disposed	73349	Direct
2021-05-12	Common Stock	S	600	$100.88	Disposed	72749	Direct
2021-05-12	Common Stock	S	1400	$101.79	Disposed	71349	Direct
2021-05-12	Common Stock	S	1500	$102.58	Disposed	69849	Direct
2021-05-12	Common Stock	S	200	$103.83	Disposed	69649	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 November 4, 2020.

F2: The price reported in column 4 is a weighted average price These shares were sold in multiple transactions at prices ranging from $99.0800 to $99.9500, inclusive.

F3: The price reported in column 4 is a weighted average price. These shares ere sold in multiple transactions at prices ranging from $100.2300 to $101.2000, inclusive.

F4: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.3100 to $102.2900, inclusive.

F5: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.3100 to $102.9900, inclusive.

F6: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.7400 to $103.9200, inclusive.