Trex SVP granted time-based and performance RSUs

Rudolph Jacob T. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Rudolph Jacob T. reported acquisition or exercise transactions in this Form 4 filing.

Trex Company senior vice president and chief human resources officer Jacob T. Rudolph received two equity awards of common stock on February 24, 2026. Each award covers 6,321 restricted stock units valued at $41.45 per share.

One award vests over three years in equal installments on March 1, 2027, March 1, 2028, and March 1, 2029. The second award is performance-based with the same three-year schedule, but the actual shares vesting each year can range from 0% to 200% of the 6,321 target units, depending on Trex’s financial goals. Rudolph holds the shares directly, and his ownership increases as these awards are granted.

Insider Trade Summary

Grant/Award: 12,642 shares

Grant/Award 2 txns

Insider Rudolph Jacob T.

Role SVP, CHRO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	6,321	$41.45	$262K
Grant/Award	Common Stock	6,321	$41.45	$262K

Holdings After Transaction: Common Stock — 40,294 shares (Direct)

Footnotes (2)

1. F1. 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. F2. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Trex (TREX) report for Jacob T. Rudolph?

Trex reported that SVP and CHRO Jacob T. Rudolph received two grants of 6,321 restricted stock units each. Both equity awards are in common stock at a reference value of $41.45 per share and increase his direct ownership stake over time as they vest.

How do Jacob T. Rudolph’s time-based RSUs at Trex (TREX) vest?

Rudolph’s time-based restricted stock unit award of 6,321 units vests in three equal annual installments. Vesting occurs on March 1, 2027, March 1, 2028, and March 1, 2029, aligning his compensation with Trex’s multi-year performance and retention goals.

How are Jacob T. Rudolph’s performance-based RSUs at Trex (TREX) structured?

The performance-based award covers a target of 6,321 restricted stock units, vesting over three years on the same March 1 dates in 2027, 2028, and 2029. Actual shares vesting each year depend on company financial goals and can range from 0% to 200% of target.

What determines the number of Trex (TREX) performance RSUs that will vest for Jacob T. Rudolph?

The vesting amount for Rudolph’s performance-based restricted stock units is tied to Trex’s financial performance. Each year’s vesting can be anywhere from 0% to 200% of the 6,321 target units, based on achievement of specified company financial goals.

Are Jacob T. Rudolph’s new Trex (TREX) equity awards open-market share purchases?

No, the transactions are classified as grants or awards, not open-market purchases. The Form 4 identifies both as acquisition-type transactions coded “A,” meaning they are equity compensation awards of common stock rather than shares Rudolph bought in the market.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/25/2026 - 09:07 PM Learn about SEC filing dates

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^*

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)
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)		6,321	A	$41.45	33,973	D
Common Stock	02/24/2026		A(2)		6,321	A	$41.45	40,294	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 by power of attorney	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.
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