[Form 4] Trex Company, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Trex Company, Inc. (TREX) – Form 4 insider filing: Director Gerald Volas reported the receipt of 1,812 shares of common stock on 30 Jul 2025. The transaction is coded “A,” indicating an equity award/grant rather than an open-market purchase. The award is structured as restricted stock units that vest on the first anniversary of the grant. A reference price of $66.23 implies a notional value of roughly $120 k. After the grant, Volas’ direct beneficial ownership rises to 41,574 shares. No derivative securities were involved, and there are no dispositions reported. The filing was signed on 31 Jul 2025.

While the grant modestly increases insider ownership and helps align incentives, it is part of routine director compensation and therefore carries limited signaling power compared with voluntary, open-market purchases.

Insights

Securities Analyst

TL;DR: Routine RSU grant; minor positive, limited market impact.

The 1,812-share RSU award adds less than ~$0.12 M in equity to Director Volas and lifts his stake to 41,574 shares. Because the transaction is compensation-related (code A) rather than a discretionary buy, it provides only a weak confidence signal. The size is immaterial versus Trex’s market capitalization, so I view the overall impact on valuation or trading dynamics as neutral.

Corporate Governance Expert

TL;DR: Standard board equity grant strengthens alignment, no governance red flags.

The RSU grant follows typical board-compensation practice and vests in one year, promoting director focus on long-term share performance. No accelerated vesting, option repricing, or unusual terms are disclosed. Therefore, from a governance standpoint the filing is clean and non-controversial, but likewise not especially informative for investors.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Volas Gerald

(Last) (First) (Middle)

C/O TREX COMPANY, INC.

2500 TREX WAY

(Street)

WINCHESTER VA 22601

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TREX CO INC [ TREX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
07/30/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/30/2025		A(1)		1,812	A	$66.23	41,574	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This restricted stock unit award will vest on the first anniversary of the grant.

	/s/ Amy M. Fernandez by power of attorney	07/31/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider activity did Trex (TREX) report?

Director Gerald Volas received 1,812 RSUs on 30 Jul 2025, reported on Form 4.

Was the transaction an open-market buy?

No. It was coded "A"—a stock award/grant, not a market purchase.

What is the reference price and value of the RSU grant?

The filing lists $66.23 per share, valuing the grant at roughly $120 k.

How many shares does Gerald Volas own after the transaction?

His direct beneficial ownership rises to 41,574 shares.

When will the RSUs vest?

The award will vest one year after the 30 Jul 2025 grant date.

When was the Form 4 signed and filed?

It was signed on 31 Jul 2025 and subsequently filed with the SEC.