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  4. [Form 4] TREX CO INC Insider Trading Activity

Trex Co Inc (TREX) grants director Gerald Volas 2,831 RSUs

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Volas Gerald reported acquisition or exercise transactions in this Form 4 filing.

Trex Co Inc reported that director Gerald Volas received a grant of 2,831 shares of common stock as a restricted stock unit award on 2026-07-29, at a reported value of $42.39 per share. Following this equity award, he directly holds 44,405 shares of Trex common stock, with the RSUs vesting on the first anniversary of the grant.

Positive

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Negative

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Insider Volas Gerald
Role Director
Type Security Shares Price Value
Grant/Award Common Stock F1 2,831 $42.39 $120K
Holdings After Transaction: Common Stock — 44,405 shares (Direct)
Footnotes (1)
  1. F1. This restricted stock unit award will vest on the first anniversary of the grant.
RSU shares granted 2,831 shares Restricted stock unit award to director Gerald Volas on 2026-07-29
Reported value per share $42.39 per share Per-share amount reported for the 2,831-share RSU grant
Shares owned after grant 44,405 shares Total direct Trex common stock holdings of Gerald Volas following the award
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.
Grant, award, or other acquisition regulatory
"transaction_code_description: Grant, award, or other acquisition"
Common Stock financial
"security_title: Common Stock reported as the underlying security"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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

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Form 4 Insider Transactions: What Each Field Means →

FAQ

What did Trex (TREX) report about director Gerald Volas in this Form 4?
Trex reported that director Gerald Volas received a grant of 2,831 shares of common stock as a restricted stock unit award. The award was reported at $42.39 per share and increases his direct holdings to 44,405 shares after the grant.

How many Trex (TREX) shares were granted to Gerald Volas and at what value?
Gerald Volas was granted 2,831 shares of Trex common stock as a restricted stock unit award. The filing reports a value of $42.39 per share for this grant, reflecting the award’s per-share amount on the 2026-07-29 grant date.

When do the Trex (TREX) restricted stock units granted to Gerald Volas vest?
The restricted stock unit award to Gerald Volas will vest on the first anniversary of the grant. This means the 2,831 RSUs granted on 2026-07-29 are scheduled to become fully vested one year after that grant date, subject to applicable conditions.

What is Gerald Volas’s total Trex (TREX) common stock holding after this grant?
After the award, Gerald Volas directly holds 44,405 shares of Trex common stock. This post-transaction figure includes the impact of the 2,831-share restricted stock unit grant reported in the Form 4 filed for the transaction dated 2026-07-29.

Was the Trex (TREX) stock award to Gerald Volas under a Rule 10b5-1 trading plan?
The Form 4 indicates the Rule 10b5-1 checkbox was not selected for this transaction. The filing therefore does not state that the 2,831-share restricted stock unit award to director Gerald Volas was granted pursuant to a Rule 10b5-1 trading plan.
SEC Form 4
FORM 4UNITED 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*
Volas Gerald
(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)
XDirector10% 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)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock07/29/2026A(1)2,831A$42.3944,405D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 attorney07/30/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR