# EDGAR Filing Document

**Accession Number:** 0001069878
**File Stem:** 0000814133-23-000004
**Filing Date:** 2023-2
**Character Count:** 3854
**Document Hash:** d933e42b9fbdb9eed26d3b0557b0b2b7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000814133-23-000004.hdr.sgml**: 20230208

**ACCESSION NUMBER**: 0000814133-23-000004

**CONFORMED SUBMISSION TYPE**: SC 13G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230208

**DATE AS OF CHANGE**: 20230208

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TREX CO INC
- **CENTRAL INDEX KEY:** 0001069878
- **STANDARD INDUSTRIAL CLASSIFICATION:** LUMBER & WOOD PRODUCTS (NO FURNITURE) [2400]
- **IRS NUMBER:** 541910453
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-56187
- **FILM NUMBER:** 23597983

**BUSINESS ADDRESS:**
- **STREET 1:** 160 EXETER DRIVE
- **CITY:** WINCHESTER
- **STATE:** VA
- **ZIP:** 22603-8605
- **BUSINESS PHONE:** 5405426300

**MAIL ADDRESS:**
- **STREET 1:** 160 EXETER DRIVE
- **CITY:** WINCHESTER
- **STATE:** VA
- **ZIP:** 22603-8605
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WASATCH ADVISORS INC
- **CENTRAL INDEX KEY:** 0000814133
- **IRS NUMBER:** 870319391
- **STATE OF INCORPORATION:** UT
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G

**BUSINESS ADDRESS:**
- **STREET 1:** 505 WAKARA WAY
- **STREET 2:** 3RD FLOOR
- **CITY:** SALT LAKE CITY
- **STATE:** UT
- **ZIP:** 84108
- **BUSINESS PHONE:** 8015330777

**MAIL ADDRESS:**
- **STREET 1:** 505 WAKARA WAY
- **STREET 2:** 3RD FLOOR
- **CITY:** SALT LAKE CITY
- **STATE:** UT
- **ZIP:** 84108

```

SCHEDULE 13G
Amendment No.
Name of Issuer: Trex Company, Inc.
Title of Class of Securities: Common Stock
CUSIP Number: 89531P105
Item 1: Reporting Person: Wasatch Advisors LP 87-0319391
Item 2: Check Box If Member of Group: Not Applicable
Item 3: SEC Use
Item 4: Place of Organization: Utah
Items 5-8: Number of Shares Owned With:
Item 5: Sole Voting Power: 6,151,337
Item 6: Shared Voting Power: 0
Item 7: Sole Dispositive Power: 6,151,337
Item 8: Shared Dispositive Power: 0
Item 9: Aggregate Amount Owned: 6,151,337
Item 10: Check Box If Aggregate Amount Excludes Certain Shares: N/A
Item 11: Percent of Class Owned: 5.6%
Item 12: Type of Reporting Person: IA

Item 1(a): Name of Issuer: Trex Company, Inc.
Item l(b): Address of Issuer:
160 Exeter Dr. Winchester, VA 22603
Item 2(a): Name of Person Filing: Wasatch Advisors LP
Item 2(b): Address: 505 Wakara Way, Salt Lake City, UT 84108
Item 2(c): Citizenship: Not Applicable
Item 2(d): Title of Class of Securities: Common Stock
Item 2(e): CUSIP Number: 89531P105
Item 3(e): Investment Adviser registered under section 203 of the Investment
Advisers Act of 1940
Item 4(a): 	Amount Owned: 6,151,337
Item 4(b): 	Percent of Class Owned: 5.6%
Item 4(c)(i): Sole Voting Power: 6,151,337
Item 4(c)(ii): Shared Voting Power: 0
Item 4(c)(iii): Sole Dispositive Power: 6,151,337
Item 4(c)(iv): Shared Dispositive Power: 0
Item 5: Check Box If Ownership Is 5% or Less of Class: [ ]
Item 6. Ownership of More Than 5% on Behalf of Another Person: N/A
Item 7: Identification of Subsidiary: Not Applicable
Item 8: Identification of Members of Group: Not Applicable
Item 9: Notice of Dissolution of Group: Not Applicable
Item 10: Certification:
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect
of changing or influencing the control of the issuer of such securities and
were not acquired in connection with or as a participant in any transaction
having such purpose or effect.

SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct as of December 31, 2022.
Date: 02/08/23
Signature: /s/JB Taylor
Name/Title: JB Taylor/CEO

```