| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9.8% | $606,759,651 | 10,513,943 | BlackRock, Inc. | 31 Mar 2025 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 6.7% | $301,732,245 | 7,225,389 | Wellington Management Group LLP | 31 Dec 2025 | |||
| ALLIANCEBERNSTEIN L.P. | 6.1% | -18% | $271,585,241 | -$64,283,005 | 6,503,478 | -19% | AllianceBernstein L.P. | 31 Dec 2025 |
| WASATCH ADVISORS LP | 4.8% | -8% | $312,487,390 | -$24,328,408 | 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 31 Dec 2025, 424 institutional investors reported holding 103,811,334 shares of TREX CO INC - Common Stock (TREX). This represents 97% of the company’s total 106,614,393 outstanding shares.
The largest institutional shareholders of TREX CO INC - Common Stock (TREX) together control 69% 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. | 9.8% | 10,425,992 | +2.1% | 0.01% | $365,743,800 |
| VANGUARD GROUP INC | 9.2% | 9,820,336 | -1.4% | 0% | $344,497,388 |
| WELLINGTON MANAGEMENT GROUP LLP | 6.8% | 7,225,393 | +266% | 0.04% | $253,466,787 |
| ALLIANCEBERNSTEIN L.P. | 6.1% | 6,503,478 | -14% | 0.07% | $228,142,008 |
| AQR CAPITAL MANAGEMENT LLC | 3.7% | 3,895,534 | +144% | 0.07% | $136,655,333 |
| WASATCH ADVISORS LP | 3.4% | 3,601,463 | -30% | 0.75% | $126,339,322 |
| STATE STREET CORP | 3% | 3,162,654 | -0.7% | 0% | $110,945,902 |
| MORGAN STANLEY | 2.2% | 2,313,285 | +45% | 0% | $81,150,050 |
| Clearbridge Investments, LLC | 2% | 2,172,743 | -18% | 0.06% | $76,219,812 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 1,913,263 | +1.3% | 0% | $67,131,927 |
| CITADEL ADVISORS LLC | 1.8% | 1,901,418 | +639% | 0.05% | $66,701,743 |
| NORGES BANK | 1.7% | 1,793,154 | 0.01% | $62,903,842 | |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 1,786,701 | +6.7% | 0.01% | $62,680,123 |
| Impax Asset Management Group plc | 1.7% | 1,783,815 | -7.8% | 0.39% | $62,576,230 |
| D. E. Shaw & Co., Inc. | 1.7% | 1,765,060 | +3006% | 0.05% | $61,918,305 |
| Point72 Asset Management, L.P. | 1.6% | 1,662,342 | 0.09% | $58,314,957 | |
| BANK OF AMERICA CORP /DE/ | 1.4% | 1,544,503 | +0.69% | 0% | $54,181,164 |
| Freestone Grove Partners LP | 1.4% | 1,537,938 | 0.39% | $53,950,865 | |
| FEDERATED HERMES, INC. | 1.4% | 1,507,171 | +2.5% | 0.09% | $52,871,557 |
| AMERICAN CENTURY COMPANIES INC | 1.3% | 1,372,080 | -37% | 0.02% | $48,132,628 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 1.2% | 1,326,379 | +121% | 0.18% | $46,529,375 |
| FMR LLC | 1.2% | 1,284,867 | +4.7% | 0% | $45,073,139 |
| MILLENNIUM MANAGEMENT LLC | 1.1% | 1,207,545 | +9% | 0.03% | $42,360,679 |
| PRINCIPAL FINANCIAL GROUP INC | 1% | 1,098,189 | +32% | 0.02% | $38,524,471 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 0.94% | 1,007,236 | -2.7% | 0.68% | $35,333,839 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 103,811,334 | $3,642,767,663 | -$504,927,558 | $35.08 | 424 |
| 2025 Q3 | 110,317,157 | $5,697,887,843 | -$220,142,571 | $51.67 | 459 |
| 2025 Q2 | 114,230,433 | $6,211,132,783 | -$62,514,818 | $54.38 | 442 |
| 2025 Q1 | 115,181,189 | $6,690,240,826 | +$376,982,290 | $58.10 | 435 |
| 2024 Q4 | 108,121,671 | $7,463,320,232 | +$431,040,134 | $69.03 | 462 |
| 2024 Q3 | 102,105,923 | $6,808,734,022 | -$84,155,787 | $66.58 | 487 |
| 2024 Q2 | 103,111,157 | $7,642,367,707 | +$32,171,159 | $74.12 | 513 |
| 2024 Q1 | 102,219,854 | $10,191,908,054 | -$196,929,612 | $99.75 | 519 |
| 2023 Q4 | 104,408,912 | $8,643,613,149 | -$114,414,377 | $82.79 | 476 |
| 2023 Q3 | 106,364,210 | $6,554,267,150 | +$12,654,406 | $61.63 | 478 |
| 2023 Q2 | 105,817,586 | $6,936,913,068 | +$111,090,649 | $65.56 | 448 |
| 2023 Q1 | 104,556,067 | $5,087,642,661 | +$32,071,606 | $48.67 | 422 |
| 2022 Q4 | 104,426,556 | $4,423,747,894 | +$8,029,777 | $42.33 | 441 |
| 2022 Q3 | 104,831,178 | $4,607,338,738 | -$224,948,474 | $43.94 | 426 |
| 2022 Q2 | 109,621,445 | $5,969,101,953 | +$36,992,611 | $54.42 | 455 |
| 2022 Q1 | 109,032,482 | $7,133,486,053 | -$29,449,276 | $65.33 | 466 |
| 2021 Q4 | 106,754,930 | $14,408,856,298 | -$312,290,487 | $135.03 | 540 |
| 2021 Q3 | 108,413,844 | $11,053,011,350 | -$43,877,735 | $101.93 | 475 |
| 2021 Q2 | 108,840,613 | $11,124,726,378 | +$103,744,607 | $102.21 | 470 |
| 2021 Q1 | 109,950,432 | $10,069,507,892 | -$253,322,645 | $91.54 | 465 |
| 2020 Q4 | 113,569,506 | $9,512,205,461 | -$180,547,266 | $83.72 | 458 |
| 2020 Q3 | 115,438,848 | $8,263,474,776 | +$4,059,829,960 | $71.60 | 399 |
| 2020 Q2 | 58,470,342 | $7,604,435,951 | -$404,068,015 | $130.07 | 385 |
| 2020 Q1 | 61,764,435 | $4,946,478,655 | -$37,788,543 | $80.14 | 337 |
| 2019 Q4 | 61,558,910 | $5,535,397,188 | -$27,457,633 | $89.88 | 333 |
| 2019 Q3 | 61,689,117 | $5,609,307,122 | -$83,648,612 | $90.93 | 314 |
| 2019 Q2 | 62,939,859 | $4,511,111,661 | +$498,806,617 | $71.70 | 295 |
| 2019 Q1 | 57,243,042 | $3,522,634,833 | +$114,349,775 | $61.52 | 315 |
| 2018 Q4 | 55,421,034 | $3,289,974,531 | +$97,283,709 | $59.36 | 293 |
| 2018 Q3 | 53,185,248 | $4,092,842,938 | +$15,366 | $76.98 | 307 |
| 2018 Q2 | 53,274,640 | $3,335,166,005 | +$1,642,510,942 | $62.59 | 269 |
| 2018 Q1 | 26,550,195 | $2,885,918,990 | -$29,203,953 | $108.77 | 269 |
| 2017 Q4 | 26,845,342 | $2,910,052,788 | -$39,323,214 | $108.39 | 279 |
| 2017 Q3 | 26,573,702 | $2,390,334,422 | -$47,517,424 | $90.07 | 222 |
| 2017 Q2 | 27,209,615 | $1,841,166,097 | +$66,837,892 | $67.66 | 217 |
| 2017 Q1 | 27,248,941 | $1,890,859,023 | +$204,240,927 | $69.39 | 215 |
| 2016 Q4 | 27,786,858 | $1,789,632,273 | -$14,589,289 | $64.40 | 224 |
| 2016 Q3 | 27,950,572 | $1,640,712,280 | -$51,024,082 | $58.72 | 215 |
| 2016 Q2 | 28,955,392 | $1,300,560,793 | -$91,561,837 | $44.92 | 179 |
| 2016 Q1 | 31,210,180 | $1,495,351,122 | -$6,823,856 | $47.93 | 185 |
| 2015 Q4 | 31,816,505 | $1,210,358,511 | +$43,114,962 | $38.04 | 160 |
| 2015 Q3 | 30,762,147 | $1,025,291,609 | -$47,019,443 | $33.33 | 159 |
| 2015 Q2 | 31,166,466 | $1,540,533,549 | -$25,722,395 | $49.43 | 163 |
| 2015 Q1 | 31,386,569 | $1,707,558,905 | -$35,181,260 | $54.53 | 161 |
| 2014 Q4 | 32,352,016 | $1,377,648,493 | -$60,975,517 | $42.58 | 146 |
| 2014 Q3 | 33,853,415 | $1,170,312,703 | -$34,673,967 | $34.57 | 132 |
| 2014 Q2 | 35,086,086 | $1,010,974,807 | +$506,317,905 | $28.82 | 140 |
| 2014 Q1 | 16,377,637 | $1,198,662,465 | +$100,136,432 | $73.16 | 141 |