TREX CO INC — Director's Dealing 2025

Aug 7, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2025-08-06

Reporting Person: Fernandez Amy M. (SVP, CLO and Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-08-06	Common Stock	G	78	—	Disposed	24491	Direct
2025-08-06	Common Stock	S	1538	$64.1817	Disposed	22953	Direct

Footnotes

F1: On August 7, 2025, the reporting person inadvertently filed a Form 4, reporting the same transactions set forth in this report, as an amendment to a prior Form 4, as opposed to an original Form 4. This Form 4 is being filed reporting the same transactions, solely to indicate that it is an original Form 4 and not an amendment.

F2: This transaction involved a gift by the reporting person to a charitable organization as described in Section 501(c)(3) of the Internal Revenue Code.

F3: The price reported in column 4 is a weighted average price These shares were sold in multiple transactions at prices ranging from $64.17 to $64.19, inclusive.