Trex (TREX) CEO receives stock award and surrenders shares for taxes

Rhea-AI Filing Summary

Trex Company President and CEO Bryan Horix Fairbanks reported multiple equity-compensation-related transactions in common stock. He acquired 9,609 shares at $41.42 per share as a grant or award and recorded a 5,678-share adjustment tied to performance-based awards. He also surrendered 23,127 shares, as allowed under the 2023 Stock Incentive Plan, to cover taxes due on previously granted restricted stock units, leaving 167,044 shares held directly.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider FAIRBANKS BRYAN HORIX

Role President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	9,609	$41.42	$398K
Other	Common Stock	5,678	$41.42	$235K
Tax Withholding	Common Stock	23,127	$41.42	$958K

Holdings After Transaction: Common Stock — 195,849 shares (Direct)

Footnotes (1)

1. Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance of the Company. Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied. 23,127 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.

Form 4 Insider Transactions: What Each Field Means →

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^*

FAIRBANKS BRYAN HORIX

(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)

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

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)		9,609	A	$41.42	195,849	D
Common Stock	03/01/2026		J(2)		5,678	D	$41.42	190,171	D
Common Stock	03/01/2026		F(3)		23,127	D	$41.42	167,044	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. 23,127 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.
* 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 did Trex (TREX) CEO Bryan Fairbanks report in this Form 4?

Trex President and CEO Bryan Fairbanks reported equity-compensation-related stock activity, including a share grant, a performance-based share adjustment, and a tax-withholding share surrender. These transactions changed his directly held Trex common stock balance to 167,044 shares.

How many Trex shares were granted to the CEO in this filing?

The CEO acquired 9,609 Trex common shares as a grant or award at a reported price of $41.42 per share. This reflects equity compensation rather than an open-market purchase, increasing his directly held share position reported in the filing.

What is the 5,678-share transaction reported by Trex (TREX) CEO?

The 5,678-share transaction is classified as an “other acquisition or disposition” and reflects the net difference between target performance-based shares and actual vested shares, based on the company’s performance, as described in the accompanying Form 4 footnote.

Why did the Trex CEO surrender 23,127 shares in this Form 4?

The CEO surrendered 23,127 Trex shares to cover taxes due on previously granted restricted stock units. The filing states this is permitted under Trex’s 2023 Stock Incentive Plan and represents a tax-withholding disposition rather than an open-market sale.

What is the CEO’s Trex share ownership after these transactions?

After the reported grant, performance-based adjustment, and tax-share surrender, the CEO’s directly held Trex common stock position is 167,044 shares. This post-transaction balance is explicitly stated in the Form 4 for the final tax-withholding transaction.

Were any of the Trex CEO’s transactions open-market buys or sells?

None of the reported Trex transactions are coded as open-market buys or sells. They are classified as a grant or award acquisition, a performance-based share adjustment, and a tax-withholding disposition under the company’s stock incentive plan, according to the Form 4.