TREX CO INC - COMMON STOCK (TREX) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / COMMON STOCK
Symbol
TREX on NYSE
Shares outstanding
105,818,714
Price per share
$35.08
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
110,316,743
Total reported value
$5,697,867,278
% of total 13F portfolios
0.01%
Share change
-4,045,841
Value change
-$224,571,992
Number of holders
457
Price from insider filings
$35.08
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of TREX CO INC - COMMON STOCK (TREX) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 9.8% $578,477,144 10,513,943 BlackRock, Inc. 31 Mar 2025
ALLIANCEBERNSTEIN L.P. 7.5% -26% $442,516,066 -$152,763,250 8,042,822 -26% AllianceBernstein L.P. 31 Mar 2025
WASATCH ADVISORS LP 4.8% -8% $329,133,332 -$25,624,362 5,185,652 -7.2% WASATCH ADVISORS LP 30 Jun 2025
PRICE T ROWE ASSOCIATES INC /MD/ 0.7% -87% $38,273,571 -$338,982,223 740,731 -90% T. Rowe Price Associates, Inc. 30 Sep 2025

As of 30 Sep 2025, 457 institutional investors reported holding 110,316,743 shares of TREX CO INC - COMMON STOCK (TREX). This represents 104% of the company’s total 105,818,714 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of TREX CO INC - COMMON STOCK (TREX) together control 68% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 9.7% 10,215,598 -16% 0.01% $527,839,948
VANGUARD GROUP INC 9.4% 9,959,834 -0.94% 0.01% $514,624,623
ALLIANCEBERNSTEIN L.P. 7.1% 7,543,925 +1.9% 0.12% $389,794,605
WASATCH ADVISORS LP 4.9% 5,165,437 -0.39% 1.4% $266,898,130
STATE STREET CORP 3% 3,185,053 -0.94% 0.01% $164,571,689
Clearbridge Investments, LLC 2.5% 2,636,366 -11% 0.1% $136,221,017
NEUBERGER BERMAN GROUP LLC 2.4% 2,549,652 +39% 0.1% $131,740,519
Anomaly Capital Management, LP 2.2% 2,307,739 +17% 3.5% $119,240,874
AMERICAN CENTURY COMPANIES INC 2.1% 2,191,472 +2.5% 0.06% $113,233,437
WELLINGTON MANAGEMENT GROUP LLP 1.9% 1,974,096 +87% 0.02% $102,001,540
Impax Asset Management Group plc 1.8% 1,934,581 +93% 0.58% $99,354,073
Conestoga Capital Advisors, LLC 1.8% 1,894,949 -5.1% 1.6% $97,912,015
Madison Asset Management, LLC 1.8% 1,893,081 +1.2% 1.1% $97,815,488
GEODE CAPITAL MANAGEMENT, LLC 1.8% 1,888,371 +2% 0.01% $97,590,786
GENEVA CAPITAL MANAGEMENT LLC 1.6% 1,723,945 +0.08% 1.5% $89,076,253
DIMENSIONAL FUND ADVISORS LP 1.6% 1,674,288 +2.4% 0.02% $86,506,669
MACQUARIE GROUP LTD 1.6% 1,652,402 +5.6% 0.1% $85,380,000
MORGAN STANLEY 1.5% 1,600,231 +3.9% 0.01% $82,684,011
AQR CAPITAL MANAGEMENT LLC 1.5% 1,598,001 +17552% 0.05% $81,498,051
BAMCO INC /NY/ 1.5% 1,589,735 +0.71% 0.22% $82,141,607
BANK OF AMERICA CORP /DE/ 1.4% 1,533,885 +18% 0.01% $79,255,839
FEDERATED HERMES, INC. 1.4% 1,469,878 +91% 0.13% $75,948,596
Liontrust Investment Partners LLP 1.3% 1,332,051 -5.2% 1% $68,827,075
FMR LLC 1.2% 1,227,540 +0.1% 0% $63,427,006
MILLENNIUM MANAGEMENT LLC 1% 1,108,332 +26% 0.05% $57,267,514

Institutional Holders of TREX CO INC - COMMON STOCK (TREX) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,519,687 $53,795,903 -$16,153,892 $35.08 42
2025 Q3 110,316,743 $5,697,867,278 -$224,571,992 $51.67 457
2025 Q2 114,230,433 $6,211,132,783 -$62,514,808 $54.38 442
2025 Q1 115,147,541 $6,688,285,500 +$376,982,561 $58.10 434
2024 Q4 108,084,309 $7,460,704,365 +$496,671,188 $69.03 459
2024 Q3 101,111,853 $6,742,548,802 -$159,388,840 $66.58 485
2024 Q2 103,088,390 $7,640,679,978 +$135,899,751 $74.12 513
2024 Q1 100,435,357 $10,014,056,768 -$269,873,434 $99.75 516
2023 Q4 704,449 $58,606,880 +$11,565,733 $82.79 4
2023 Q3 103,586,427 $6,382,712,042 -$25,568,295 $61.63 468
2023 Q2 104,550,799 $6,854,046,850 +$70,833,790 $65.56 440
2023 Q1 104,053,137 $5,063,871,587 +$36,005,633 $48.67 412
2022 Q4 103,157,238 $4,369,888,124 -$658,540 $42.33 431
2022 Q3 98,775,851 $4,341,140,428 -$182,360,519 $43.94 412
2022 Q2 108,129,705 $5,873,228,957 +$72,892,234 $54.42 443
2022 Q1 108,233,350 $7,079,910,488 +$35,660,071 $65.33 458
2021 Q4 106,555,519 $14,380,003,803 -$303,593,173 $135.03 537
2021 Q3 108,320,124 $11,044,772,312 -$45,699,217 $101.93 472
2021 Q2 108,756,614 $11,119,193,178 +$104,600,680 $102.21 467
2021 Q1 109,763,303 $10,052,251,519 -$256,161,545 $91.54 461
2020 Q4 113,429,514 $9,500,602,053 -$182,194,016 $83.72 452
2020 Q3 113,689,016 $8,136,782,410 +$3,991,954,613 $71.60 389
2020 Q2 58,178,215 $7,566,525,920 -$409,301,608 $130.07 378
2020 Q1 61,040,734 $4,888,356,555 -$69,519,555 $80.14 332
2019 Q4 61,277,076 $5,510,063,920 -$24,309,805 $89.88 330
2019 Q3 60,716,684 $5,520,883,778 -$87,724,418 $90.93 311
2019 Q2 62,251,242 $4,461,702,541 +$505,374,367 $71.70 290
2019 Q1 57,027,606 $3,509,380,646 +$104,899,020 $61.52 313
2018 Q4 55,155,385 $3,274,196,659 +$99,329,793 $59.36 289
2018 Q3 53,179,674 $4,092,413,938 +$27,597 $76.98 306
2018 Q2 53,268,656 $3,334,699,369 +$1,658,431,240 $62.59 267
2018 Q1 26,535,317 $2,884,300,990 -$29,031,978 $108.77 268
2017 Q4 26,828,574 $2,908,170,853 -$40,615,187 $108.39 277
2017 Q3 26,571,154 $2,390,105,422 -$47,570,640 $90.07 220
2017 Q2 27,036,144 $1,829,430,097 +$69,379,027 $67.66 216
2017 Q1 26,600,036 $1,845,830,023 +$203,446,643 $69.39 211
2016 Q4 27,786,431 $1,789,604,273 -$14,602,214 $64.40 223
2016 Q3 27,950,332 $1,640,698,280 -$53,739,885 $58.72 213
2016 Q2 28,934,369 $1,299,615,793 -$92,262,986 $44.92 176
2016 Q1 30,801,573 $1,475,777,122 -$6,490,696 $47.93 181
2015 Q4 31,789,918 $1,209,347,511 +$43,251,198 $38.04 157
2015 Q3 30,369,203 $1,012,194,609 -$47,314,167 $33.33 158
2015 Q2 28,327,525 $1,400,205,549 -$21,477,032 $49.43 162
2015 Q1 28,767,306 $1,564,733,905 -$24,692,786 $54.53 160
2014 Q4 29,641,923 $1,262,252,493 -$61,590,697 $42.58 144
2014 Q3 33,849,972 $1,170,193,703 -$31,192,473 $34.57 134
2014 Q2 34,961,819 $1,007,393,807 +$505,497,721 $28.82 140
2014 Q1 16,377,637 $1,198,662,465 +$85,792,440 $73.16 142