TREX CO INC — Director's Dealing 2025

Mar 4, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2025-03-01

Reporting Person: Rudolph Jacob T. (SVP, CHRO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-01	Common Stock	J	772	$61.69	Disposed	30126	Direct
2025-03-01	Common Stock	A	1306	$61.69	Acquired	31432	Direct
2025-03-01	Common Stock	F	2458	$61.69	Disposed	28974	Direct

Footnotes

F1: Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied.

F2: Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance of the Company.

F3: 2,458 shares are being surrendered as allowed by the Company's 2023 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.