Trex (TREX) SVP granted two 10,181-share equity awards

Rhea-AI Filing Summary

Fernandez Amy M. reported acquisition or exercise transactions in this Form 4 filing.

Trex Company reported that senior vice president, chief legal officer and secretary Amy M. Fernandez received two equity awards covering 10,181 shares of common stock each at $41.45 per share on February 24, 2026. One restricted stock unit award vests in three equal annual installments on March 1, 2027, March 1, 2028, and March 1, 2029. The second is a performance-based restricted stock unit award over the same schedule, with actual shares vesting each year ranging from 0% to 200% of the 10,181-share target based on company financial goals.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Fernandez Amy M.

Role SVP, CLO and Secretary

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	10,181	$41.45	$422K
Grant/Award	Common Stock	10,181	$41.45	$422K

Holdings After Transaction: Common Stock — 62,332 shares (Direct)

Footnotes (1)

1. This restricted stock unit award vests over a three-year period in three equal annual installments occurring March 1, 2027, March 1, 2028, and March 1, 2029. This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments occurring March 1, 2027, March 1, 2028, and March 1, 2029. The number of shares set forth above is the target number of shares. The number of shares that will actually vest each year will be based upon performance against certain financial goals for the Company and will range from 0% to 200% of the target number of shares.

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^*

Fernandez Amy M.

(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)
	SVP, CLO and Secretary

3. Date of Earliest Transaction (Month/Day/Year)
02/24/2026

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	02/24/2026		A(1)		10,181	A	$41.45	62,332	D
Common Stock	02/24/2026		A(2)		10,181	A	$41.45	72,513	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 vests over a three-year period in three equal annual installments occurring March 1, 2027, March 1, 2028, and March 1, 2029.

2. This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments occurring March 1, 2027, March 1, 2028, and March 1, 2029. The number of shares set forth above is the target number of shares. The number of shares that will actually vest each year will be based upon performance against certain financial goals for the Company and will range from 0% to 200% of the target number of shares.

	/s/ Amy M. Fernandez	02/25/2026
	** 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 insider transaction did Trex (TREX) report for Amy M. Fernandez?

Trex reported that Amy M. Fernandez received two equity awards, each covering 10,181 shares of common stock at $41.45 per share. Both grants are structured as restricted stock unit awards that vest over three years beginning March 1, 2027.

How do Amy M. Fernandez’s time-based restricted stock units at Trex vest?

The time-based restricted stock unit award vests in three equal annual installments on March 1, 2027, March 1, 2028, and March 1, 2029. Each installment represents one-third of the 10,181-share award, assuming continued satisfaction of the vesting conditions.

What are the terms of the performance-based restricted stock unit award at Trex?

The performance-based restricted stock unit award has a target of 10,181 shares and vests over three years on the same March 1 dates in 2027, 2028, and 2029. Actual shares vesting each year depend on company financial goals, ranging from 0% to 200% of target.

At what price were the Trex equity awards to Amy M. Fernandez valued?

Both equity awards to Amy M. Fernandez reference a price of $41.45 per share for Trex common stock. This price is used in the Form 4 disclosure for the 10,181-share awards but does not change the vesting schedules or performance conditions described.

What role does Amy M. Fernandez hold at Trex Company (TREX)?

Amy M. Fernandez is reported as a senior vice president, chief legal officer and secretary of Trex Company. The Form 4 shows she acquired two restricted stock unit awards tied to Trex common stock as part of her equity-based compensation on February 24, 2026.