TREX Institutional Ownership & Shareholders
TREX COMPANY INC (TREX) is currently held by 463 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $5.46B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of TREX tracked by InsiderSet, reporting ownership valued at approximately $525.08M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $536.62M, representing an estimated gain of +2.20% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed TREX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Wellington Management Group Llp, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in TREX COMPANY INC (TREX).
This page ranks the largest institutional TREX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
463
Total Reported Value
$5.46B
Largest Holder
Blackrock, Inc.
Largest Position
$525.08M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
85
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 10,493,216 | $525,080,527 | $536,623,066 | +$11,542,539 | +2.20% | |
| Wellington Management Group Llp | 0.09% | 9,877,116 | $494,250,886 | $505,115,712 | +$10,864,826 | +2.20% | |
| Vanguard Capital Management Llc | 0.01% | 4,701,079 | $235,241,993 | $240,413,180 | +$5,171,187 | +2.20% | |
| Vanguard Portfolio Management Llc | 0.01% | 4,444,799 | $222,417,742 | $227,307,021 | +$4,889,279 | +2.20% | |
| Alliancebernstein L.P. | 0.07% | 6,039,140 | $219,945,479 | $308,841,620 | +$88,896,141 | +40.42% | |
| Millennium Management Llc | 0.13% | 3,773,886 | $188,845,255 | $192,996,530 | +$4,151,275 | +2.20% | |
| Aqr Capital Management Llc | 0.06% | 3,633,238 | $181,007,905 | $185,803,791 | +$4,795,886 | +2.65% | |
| American Century Companies Inc | 0.07% | 3,308,378 | $165,551,315 | $169,190,451 | +$3,639,136 | +2.20% | |
| State Street Corp | 0.00% | 3,247,388 | $162,499,296 | $166,071,422 | +$3,572,126 | +2.20% | |
| Wasatch Advisors Lp | 1.18% | 3,641,416 | $158,620,081 | $186,222,014 | +$27,601,933 | +17.40% | |
| Citadel Advisors Llc | 0.06% | 2,236,735 | $111,926,219 | $114,386,628 | +$2,460,409 | +2.20% | |
| Clearbridge Investments, Llc | 0.09% | 2,168,849 | $108,529,198 | $110,914,938 | +$2,385,740 | +2.20% | |
| Morgan Stanley | 0.01% | 2,113,486 | $105,758,886 | $108,083,674 | +$2,324,788 | +2.20% | |
| Geode Capital Management, Llc | 0.01% | 1,928,184 | $96,512,183 | $98,607,330 | +$2,095,147 | +2.17% | |
| Bank Of America Corp | 0.01% | 1,895,509 | $94,851,270 | $96,936,330 | +$2,085,060 | +2.20% | |
| Arrowstreet Capital, Limited Partnership | 0.04% | 1,766,003 | $88,370,790 | $90,313,393 | +$1,942,603 | +2.20% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,713,362 | $85,734,992 | $87,621,333 | +$1,886,341 | +2.20% | |
| Sg Americas Securities, Llc | 0.05% | 1,679,086 | $84,021,000 | $85,868,458 | +$1,847,458 | +2.20% | |
| Goldman Sachs Group Inc | 0.01% | 1,622,917 | $81,210,767 | $82,995,975 | +$1,785,208 | +2.20% | |
| Point72 Asset Management, L.P. | 0.12% | 1,520,782 | $76,099,931 | $77,772,791 | +$1,672,860 | +2.20% | |
| Westwood Holdings Group Inc | 0.57% | 1,504,036 | $75,261,961 | $76,916,401 | +$1,654,440 | +2.20% | |
| Two Sigma Investments, Lp | 0.05% | 1,331,721 | $66,639,319 | $68,104,212 | +$1,464,893 | +2.20% | |
| Federated Hermes, Inc. | 0.10% | 1,327,948 | $66,450,518 | $67,911,261 | +$1,460,743 | +2.20% | |
| Impax Asset Management Group Plc | 0.42% | 1,304,299 | $65,267,122 | $66,701,851 | +$1,434,729 | +2.20% | |
| Norges Bank | 0.01% | 1,258,986 | $62,999,659 | $64,384,544 | +$1,384,885 | +2.20% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,124,192 | $56,254,568 | $57,491,179 | +$1,236,611 | +2.20% | |
| Quantinno Capital Management Lp | 0.06% | 981,547 | $49,116,656 | $50,196,314 | +$1,079,658 | +2.20% | |
| Northern Trust Corp | 0.01% | 879,059 | $43,988,112 | $44,955,077 | +$966,965 | +2.20% | |
| Jacobs Levy Equity Management, Inc | 0.16% | 875,234 | $43,796,709 | $44,759,467 | +$962,758 | +2.20% | |
| Fmr Llc | 0.00% | 792,194 | $39,641,401 | $40,512,801 | +$871,400 | +2.20% | |
| Royce & Associates Lp | 0.30% | 741,113 | $37,085,295 | $37,900,519 | +$815,224 | +2.20% | |
| Freestone Grove Partners Lp | 0.24% | 723,354 | $36,196,634 | $36,992,324 | +$795,690 | +2.20% | |
| Grantham, Mayo, Van Otterloo & Co. Llc | 0.08% | 693,095 | $34,682,474 | $35,444,878 | +$762,404 | +2.20% | |
| Fort Washington Investment Advisors Inc | 0.17% | 754,311 | $32,857,787 | $38,575,465 | +$5,717,678 | +17.40% | |
| Vanguard Fiduciary Trust Co | 0.01% | 656,124 | $32,832,445 | $33,554,181 | +$721,736 | +2.20% | |
| Manufacturers Life Insurance Company, The | 0.02% | 639,438 | $31,997,478 | $32,700,859 | +$703,381 | +2.20% | |
| Bank Of New York Mellon Corp | 0.00% | 600,767 | $30,062,382 | $30,723,224 | +$660,842 | +2.20% | |
| Alyeska Investment Group, L.P. | 0.08% | 599,679 | $30,007,937 | $30,667,584 | +$659,647 | +2.20% | |
| Disciplined Growth Investors | Fred Martin | 0.50% | 592,096 | $29,628,484 | $30,279,789 | +$651,305 | +2.20% |
| Geneva Capital Management Llc | 0.67% | 588,319 | $29,439,481 | $30,086,634 | +$647,153 | +2.20% | |
| Hill City Capital, Lp | 0.64% | 550,000 | $27,522,000 | $28,127,000 | +$605,000 | +2.20% | |
| Sei Investments Co | 0.02% | 542,355 | $27,139,120 | $27,736,035 | +$596,915 | +2.20% | |
| Marshall Wace, Llp | 0.02% | 520,095 | $26,025,554 | $26,597,658 | +$572,104 | +2.20% | |
| Hook Mill Capital Partners, Lp | 2.41% | 518,584 | $25,949,943 | $26,520,386 | +$570,443 | +2.20% | |
| William Blair Investment Management, Llc | 0.08% | 511,527 | $25,596,811 | $26,159,491 | +$562,680 | +2.20% | |
| Heron Bay Capital Management | 2.09% | 460,237 | $23,030,259 | $23,536,520 | +$506,261 | +2.20% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 585,891 | $21,338,150 | $29,962,466 | +$8,624,316 | +40.42% | |
| Rivermont Capital Management Lp | 2.86% | 403,273 | $20,179,781 | $20,623,381 | +$443,600 | +2.20% | |
| Junto Capital Management Lp | 0.37% | 401,159 | $20,073,996 | $20,515,271 | +$441,275 | +2.20% | |
| Nomura Asset Management International Inc. | 0.03% | 398,428 | $19,937,000 | $20,375,608 | +$438,608 | +2.20% |
Frequently asked questions about TREX
Who are the largest institutional holders of TREX?
The largest institutional holders of TREX reported in the latest SEC Form 13F filings include Blackrock, Inc., Wellington Management Group Llp, Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and Alliancebernstein L.P.. InsiderSet ranks institutional holders by their latest reported TREX position.
What is TREX institutional ownership?
This page tracks TREX positions reported by institutional investment managers through SEC Form 13F. TREX COMPANY INC (TREX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own TREX?
InsiderSet currently tracks 463 institutional managers reporting TREX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of TREX shareholders.
How much TREX stock do institutions own?
Institutional investment managers disclosed approximately $5.46B in TREX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was TREX institutional ownership last updated?
The latest TREX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional TREX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its TREX position after the reporting date.
Are institutions buying or selling TREX?
Institutional buying and selling can be analyzed by comparing TREX positions across consecutive 13F reporting periods. InsiderSet's TREX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View TREX ownership changes.
How has TREX institutional ownership changed over time?
InsiderSet tracks TREX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.