Trex (TREX) SVP equity grant and tax share surrender detailed

Rhea-AI Filing Summary

Trex Company executive Jacob T. Rudolph, SVP and CHRO, reported multiple stock transactions involving company common shares. He received a grant or award acquisition of 1,250 shares of common stock at $41.42 per share, increasing his direct holdings at that point to 41,544 shares.

The filing also records a 663-share "other" transaction representing the net difference between target performance-based shares and actual vested shares based on company performance, and identifies a separate block of performance-based restricted units that did not vest because performance conditions were not met. In addition, 2,850 shares were surrendered at $41.42 per share to cover taxes due on previously granted restricted stock units under the company’s 2023 Stock Incentive Plan, leaving Rudolph with 38,031 directly owned shares after these transactions.

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

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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^*

Rudolph Jacob T.

(Last) (First) (Middle)

2500 TREX WAY

C/O TREX COMPANY, INC.

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

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	03/01/2026		A(1)		1,250	A	$41.42	41,544	D
Common Stock	03/01/2026		J(2)		663	D	$41.42	40,881	D
Common Stock	03/01/2026		F(3)		2,850	D	$41.42	38,031	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. Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance of the Company.

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

3. 2,850 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.

	/s/ Amy M. Fernandez by power of attorney	03/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider stock transactions did Trex (TREX) executive Jacob T. Rudolph report?

Jacob T. Rudolph reported a 1,250-share stock grant at $41.42, a 663-share performance-based adjustment, and the surrender of 2,850 shares for taxes. After these Trex common stock transactions, his directly owned balance stood at 38,031 shares.

Was there any open-market buying or selling in Jacob T. Rudolph’s Trex Form 4 filing?

The Form 4 shows grants, adjustments, and tax-related share surrender, not open-market trades. It includes a 1,250-share grant, a 663-share performance-based adjustment, and 2,850 shares surrendered to pay taxes on previously granted restricted stock units.

How many Trex shares did Jacob T. Rudolph surrender for taxes in this filing?

Rudolph surrendered 2,850 Trex common shares to cover taxes due on earlier restricted stock unit awards. The shares were delivered under the company’s 2023 Stock Incentive Plan at a price of $41.42 per share, as permitted by that plan.

What performance-based equity outcomes are described in Jacob T. Rudolph’s Trex Form 4?

The filing explains that 663 shares reflect the net difference between target performance-based shares and actual vested shares, based on Trex’s performance. It also notes a target number of performance-based restricted units that did not vest because the performance condition was not satisfied.

How many Trex shares does Jacob T. Rudolph own directly after these reported transactions?

After the reported grant, performance-based adjustment, and tax-share surrender, Rudolph directly owns 38,031 Trex common shares. This closing balance reflects all Form 4 non-derivative transactions on the stated date at the reported per-share price of $41.42.