Who owns TREX CO INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of TREX from SEC Form 13F filings across 470 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 470 institutions disclosed 111.7M shares of TREX CO INC worth $5.50B — about 109.2% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
470
13F holders
$5.50B
value, 2026 filers
109.2%
of shares outstanding (111.7M sh)
111
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of TREX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 10.5M | $525.1M | 0.0% | 10.3% | +1.3% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 9.9M | $494.3M | 0.1% | 9.7% | +18.2% |
| 3 | ALLIANCEBERNSTEIN L.P. | 6.0M | $219.9M | 0.1% | 5.9% | -6.1% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 4.7M | $235.2M | 0.0% | 4.6% | -1.0% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.4M | $222.4M | 0.0% | 4.3% | -0.9% |
| 6 | MILLENNIUM MANAGEMENT LLC | 3.8M | $188.8M | 0.1% | 3.7% | +659.2% |
| 7 | WASATCH ADVISORS LP | 3.8M | $188.0M | 1.2% | 3.7% | +6.2% |
| 8 | AQR CAPITAL MANAGEMENT LLC | 3.6M | $181.0M | 0.1% | 3.6% | -14.4% |
| 9 | AMERICAN CENTURY COMPANIES INC | 3.3M | $165.6M | 0.1% | 3.2% | +97.4% |
| 10 | STATE STREET CORP | 3.2M | $162.5M | 0.0% | 3.2% | -0.1% |
| 11 | CITADEL ADVISORS LLC | 2.2M | $111.9M | 0.0% | 2.2% | +66.8% |
| 12 | Clearbridge Investments, LLC | 2.2M | $108.5M | 0.1% | 2.1% | +2.3% |
| 13 | MORGAN STANLEY | 2.1M | $105.8M | 0.0% | 2.1% | -1.3% |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 1.9M | $96.5M | 0.0% | 1.9% | -2.4% |
| 15 | BANK OF AMERICA CORP /DE/ | 1.9M | $94.9M | 0.0% | 1.9% | -6.2% |
| 16 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.8M | $88.4M | 0.0% | 1.7% | +43.3% |
| 17 | DIMENSIONAL FUND ADVISORS LP | 1.7M | $85.7M | 0.0% | 1.7% | +0.8% |
| 18 | SG Americas Securities, LLC | 1.7M | $84.0M | 0.0% | 1.6% | +1278.7% |
| 19 | GOLDMAN SACHS GROUP INC | 1.6M | $81.2M | 0.0% | 1.6% | +58.4% |
| 20 | Point72 Asset Management, L.P. | 1.5M | $76.1M | 0.1% | 1.5% | +11.2% |
| 21 | WESTWOOD HOLDINGS GROUP INC | 1.5M | $75.3M | 0.6% | 1.5% | -14.0% |
| 22 | TWO SIGMA INVESTMENTS, LP | 1.3M | $66.6M | 0.0% | 1.3% | -8.9% |
| 23 | FEDERATED HERMES, INC. | 1.3M | $66.5M | 0.1% | 1.3% | -10.5% |
| 24 | Impax Asset Management Group plc | 1.3M | $65.3M | 0.4% | 1.3% | -26.2% |
| 25 | NORGES BANKNEW | 1.3M | $63.0M | 0.0% | 1.2% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.