Trex Co Inc (NYSE: TREX) director granted 1,101-share stock unit award

Rhea-AI Filing Summary

Tasi Irene reported acquisition or exercise transactions in this Form 4 filing.

Trex Co Inc director Irene Tasi received a grant of 1101 shares of common stock in the form of a restricted stock unit award on 2026-07-29 at a grant-date value of $42.39 per share. The award will vest on the first anniversary of the grant, and her direct holdings increased to 2357 shares.

Insider Trade Summary

Net Buyer: 1,101 shares

Net Buy 1 txn

Insider Tasi Irene

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	1,101	$42.39	$47K

Holdings After Transaction: Common Stock — 2,357 shares (Direct)

Footnotes (1)

1. F1. This restricted stock unit award will vest on the first anniversary of the grant.

Key Figures

Shares awarded: 1101.0000 shares Grant-date value per share: $42.3900 per share Shares owned after transaction: 2357.0000 shares +1 more

4 metrics

Shares awarded 1101.0000 shares Restricted stock unit grant on 2026-07-29

Grant-date value per share $42.3900 per share Value reported for the 1101-share award

Shares owned after transaction 2357.0000 shares Direct holdings after the award acquisition

Number of acquisition transactions 1 One non-derivative grant, award, or other acquisition reported

Key Terms

restricted stock unit award, non-derivative, Grant, award, or other acquisition

3 terms

restricted stock unit award financial

"This restricted stock unit award will vest on the first anniversary"

A restricted stock unit award is a promise by a company to give an employee a specified number of company shares at a future date if certain conditions are met, such as staying with the company or hitting performance goals. For investors, these awards matter because they can increase the total number of shares outstanding when converted, diluting existing holders, and they align employees’ incentives with shareholders’ interests much like giving a rising bonus that becomes real only after conditions are satisfied.

non-derivative financial

"The transaction is classified as a non-derivative common stock entry"

Grant, award, or other acquisition financial

"Transaction code description is Grant, award, or other acquisition"

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/30/2026 - 07:59 PM Accepted by SEC EDGAR 07/30/2026 - 07:59 PM Learn about SEC filing dates

FAQ

What insider transaction did Trex (TREX) report for director Irene Tasi?

Trex reported that director Irene Tasi received a grant of 1101 shares of common stock via a restricted stock unit award on 2026-07-29. The transaction is coded as a grant, award, or other acquisition of non-derivative common stock.

How many Trex (TREX) shares were granted to Irene Tasi and at what value?

Irene Tasi was granted 1101 shares of Trex common stock with a reported grant-date value of $42.39 per share. This reflects a restricted stock unit award rather than an open-market purchase or sale of shares.

What is the vesting schedule for Irene Tasi’s Trex (TREX) restricted stock unit award?

The filing states that this restricted stock unit award will vest on the first anniversary of the grant. That means the 1101 underlying common shares are scheduled to vest one year after the 2026-07-29 grant date, subject to the award’s terms.

What are Irene Tasi’s Trex (TREX) holdings after this Form 4 transaction?

Following the reported grant, Irene Tasi’s direct ownership increased to 2357 Trex common shares. This total reflects her direct holdings as reported after the restricted stock unit award acquisition recorded on 2026-07-29.

Was the Irene Tasi Trex (TREX) grant reported under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not marked, and the transaction is described as a grant, award, or other acquisition. The data does not characterize it as executed under a pre-arranged trading plan.

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^*

Tasi Irene

(Last) (First) (Middle)

C/O TREX COMPANY, INC.

2500 TREX WAY

(Street)

WINCHESTER VIRGINIA 22601

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/29/2026

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

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

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

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	07/29/2026		A(1)		1,101	A	$42.39	2,357	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	07/30/2026
	** 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.
* Form 4: SEC 1474 (03-26)