[Form 3] TREX CO INC Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

TREX CO INC Form 3 discloses that Prithvi Gandhi, serving as Senior Vice President and Chief Financial Officer, filed an initial SEC beneficial ownership statement dated 10/06/2025. The filing reports no securities beneficially owned by the reporting person as of the event date. The form was executed by a power of attorney signature and confirms this is the initial statement for the reporting person.

Positive

• Initial Form 3 filed for the reporting officer, creating an ownership baseline
• Clear disclosure that no securities are beneficially owned eliminates ambiguity about current insider holdings

Negative

• Reporting officer holds no company equity, indicating no direct ownership alignment with shareholders as of 10/06/2025

Insights

Corporate Governance Analyst

Initial disclosure shows the CFO reports no ownership in company equity.

The filing is an initial Form 3 for Prithvi Gandhi as SVP and Chief Financial Officer, dated 10/06/2025, and explicitly states no securities are beneficially owned. For governance, an officer reporting zero holdings is a clear, auditable fact about insider alignment with shareholders.

This record creates a baseline ownership position to monitor future trades or grants; any subsequent Form 4 filings will show changes from this zero-ownership starting point within required reporting windows.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Gandhi Prithvi

(Last) (First) (Middle)

C/O TREX COMPANY, INC.

2500 TREX WAY

(Street)

WINCHESTER VA 22601

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/06/2025

3. Issuer Name and Ticker or Trading Symbol
TREX CO INC [ TREX ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Financial Officer

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Amy M. Fernandez by power of attorney	10/06/2025
	** 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 5 (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 does TREX's Form 3 filed 10/06/2025 disclose about Prithvi Gandhi's holdings?

The Form 3 states that Prithvi Gandhi, SVP and Chief Financial Officer, beneficially owns no securities as of 10/06/2025.

Is this Form 3 an initial filing for TREX officer Prithvi Gandhi?

Yes. The document is labeled an Initial Statement of Beneficial Ownership (Form 3) and indicates it is the initial statement for the reporting person.

How was the Form 3 signed for the TREX filing?

The form bears a signature executed by power of attorney and is dated 10/06/2025.

Does the Form 3 list any derivative or non-derivative securities for Gandhi?

No. The filing explicitly states no securities are beneficially owned, and both Non-Derivative and Derivative tables contain no holdings.

What is the reporting relationship of Prithvi Gandhi to TREX?

The filing identifies the reporting person as a company Officer with the title SVP, Chief Financial Officer.