TREX CO INC TREX
COM · Common Stock · CUSIP 89531P105 · ISIN US89531P1057
American building materials company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($10.3m this quarter). Holder counts are more reliable. Shares outstanding: 107.2m as of 2025-02-10, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $69.03. Options: 13 managers hold calls ($10.6m notional), 11 hold puts ($11.9m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 447 |
| Q4 2022 | 456 |
| Q1 2023 | 430 |
| Q2 2023 | 458 |
| Q3 2023 | 483 |
| Q4 2023 | 484 |
| Q1 2024 | 529 |
| Q2 2024 | 522 |
| Q3 2024 | 495 |
| Q4 2024 | 466 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 196 | 218 |
| Q2 2023 | 232 | 198 |
| Q3 2023 | 244 | 220 |
| Q4 2023 | 223 | 233 |
| Q1 2024 | 236 | 244 |
| Q2 2024 | 247 | 256 |
| Q3 2024 | 225 | 265 |
| Q4 2024 | 193 | 264 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $31.9m | $45.9m | 1.44 |
| Q2 2024 | $36.4m | $43.5m | 1.20 |
| Q3 2024 | $28.9m | $11.7m | 0.40 |
| Q4 2024 | $10.6m | $11.9m | 1.12 |
Biggest buyers
| ALLIANCEBERNSTEIN L.P. | Added | +3.8m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +2.6m |
| AustralianSuper Pty Ltd | New | +1.6m |
| Anomaly Capital Management, LP | Added | +1.1m |
| Balyasny Asset Management L.P. | Added | +940.0k |
| Point72 Asset Management, L.P. | Added | +893.7k |
| Liontrust Investment Partners LLP | Added | +602.0k |
| UBS Group AG | Added | +560.9k |
| WASATCH ADVISORS LP | Added | +523.1k |
| NEUBERGER BERMAN GROUP LLC | Added | +470.0k |
Biggest sellers
| JPMORGAN CHASE & CO | Reduced | -1.3m |
| BlackRock, Inc. | Reduced | -991.7k |
| FMR LLC | Reduced | -858.1k |
| EVENTIDE ASSET MANAGEMENT, LLC | Sold out | -657.1k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -651.2k |
| Clearbridge Investments, LLC | Reduced | -576.5k |
| Artisan Partners Limited Partnership | Reduced | -571.6k |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -495.0k |
| Qube Research & Technologies Ltd | Sold out | -447.1k |
| D. E. Shaw & Co., Inc. | Reduced | -379.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.1m44.9k shares |
| GOLDMAN SACHS GROUP INC | Reduced | $2.1m30.1k shares |
| CITADEL ADVISORS LLC | Reduced | $1.4m19.6k shares |
| Twin Tree Management, LP | New | $1.2m18.1k shares |
| Cubist Systematic Strategies, LLC | Added | $786.9k11.4k shares |
| Walleye Capital LLC | Reduced | $642.0k9.3k shares |
| Walleye Trading LLC | Added | $517.7k7.5k shares |
| WOLVERINE TRADING, LLC | Reduced | $408.5k5.9k shares |
| JANE STREET GROUP, LLC | Reduced | $317.5k4.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $124.0k1.8k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.6m52.2k shares |
| GOLDMAN SACHS GROUP INC | New | $2.5m35.6k shares |
| CITADEL ADVISORS LLC | Reduced | $1.7m24.3k shares |
| Cubist Systematic Strategies, LLC | Added | $1.1m16.1k shares |
| WOLVERINE TRADING, LLC | Added | $768.5k11.1k shares |
| Walleye Trading LLC | Added | $724.8k10.5k shares |
| Walleye Capital LLC | Added | $655.8k9.5k shares |
| JANE STREET GROUP, LLC | Reduced | $552.2k8.0k shares |
| CSS LLC/IL | New | $276.1k4.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $69.0k1.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-24 | 9.8% |
| WELLINGTON MANAGEMENT GROUP LLP 13G · institution -0.9 pts · filed 2026-08-13 | 9.5% |
| MILLENNIUM MANAGEMENT LLC 13G · passive investor new · filed 2026-08-07 | 5.5% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.4% |
Fell to 5% or below in the last year: ALLIANCEBERNSTEIN L.P. (0.2%, 2026-09-04), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC), PRICE T ROWE ASSOCIATES INC /MD/ (0.7%, 2025-11-14)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 1 | $591.4k | — |
| Q2 2024 | 1 | $2.5k | 1 | $1.5m | — |
| Q3 2024 | 1 | $2.8k | 0 | — | — |
| Q4 2024 | 1 | $2.4k | 1 | $107.1k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-11-25 | Rudolph Jacob T. SVP, CHRO | Sold | $107.1k1.4k shares |
| 2024-10-03 | Rudolph Jacob T. SVP, CHRO | Bought | $2.4k43 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 12.8m $882.1m | Reduced -991.7k |
| ALLIANCEBERNSTEIN L.P. 0.25% of their portfolio | 10.8m $746.9m | Added +3.8m |
| VANGUARD GROUP INC 0.01% of their portfolio | 10.2m $703.9m | Reduced -21.7k |
| WASATCH ADVISORS LP 1.57% of their portfolio | 4.6m $317.5m | Added +523.1k |
| Clearbridge Investments, LLC 0.19% of their portfolio | 3.3m $231.0m | Reduced -576.5k |
| STATE STREET CORP 0.01% of their portfolio | 3.3m $227.4m | Added +110.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 3.1m $216.4m | Added +2.6m |
| BAMCO INC /NY/ 0.38% of their portfolio | 2.2m $148.6m | Added +126.4k |
| Balyasny Asset Management L.P. 0.33% of their portfolio | 2.0m $140.1m | Added +940.0k |
| Conestoga Capital Advisors, LLC 1.80% of their portfolio | 2.0m $135.8m | Added +17.4k |
| Point72 Asset Management, L.P. 0.36% of their portfolio | 1.9m $132.3m | Added +893.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.9m $128.1m | Reduced -17.9k |
| MACQUARIE GROUP LTD 0.14% of their portfolio | 1.7m $120.2m | Reduced -186.8k |
| AustralianSuper Pty Ltd 0.52% of their portfolio | 1.6m $110.4m | New |
| GENEVA CAPITAL MANAGEMENT LLC 1.91% of their portfolio | 1.6m $109.9m | Reduced -337 |
| Liontrust Investment Partners LLP 1.58% of their portfolio | 1.6m $108.8m | Added +602.0k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 1.5m $106.3m | Added +36.8k |
| Anomaly Capital Management, LP 3.09% of their portfolio | 1.5m $104.4m | Added +1.1m |
| MORGAN STANLEY 0.01% of their portfolio | 1.3m $90.6m | Added +409.6k |
| FEDERATED HERMES, INC. 0.19% of their portfolio | 1.3m $86.3m | Added +347.5k |
| AMERICAN CENTURY COMPANIES INC 0.05% of their portfolio | 1.2m $82.0m | Reduced -651.2k |
| Invesco Ltd. 0.01% of their portfolio | 1.1m $77.5m | Reduced -126.5k |
| TD Asset Management Inc 0.06% of their portfolio | 975.8k $67.4m | Reduced -151.4k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 954.8k $65.9m | Added +159.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 926.6k $64.0m | Added +24.6k |
| Impax Asset Management Group plc 0.28% of their portfolio | 907.1k $62.6m | Added +84.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.22% of their portfolio | 886.1k $61.2m | Added +32.5k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 871.3k $60.1m | Added +163.6k |
| NORGES BANK 0.01% of their portfolio | 783.5k $54.1m | Reduced -177.1k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 779.6k $53.8m | Reduced -13.4k |
| Stephens Investment Management Group LLC 0.69% of their portfolio | 742.9k $51.3m | Reduced -5.2k |
| Capital Research Global Investors 0.01% of their portfolio | 705.3k $48.7m | Unchanged |
| Baird Financial Group, Inc. 0.09% of their portfolio | 676.3k $46.7m | Reduced -100.2k |
| Allianz Asset Management GmbH 0.07% of their portfolio | 669.0k $46.2m | Reduced -18.1k |
| UBS Group AG 0.01% of their portfolio | 666.5k $46.0m | Added +560.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 640.9k $44.2m | Reduced -27.4k |
| BLAIR WILLIAM & CO/IL 0.13% of their portfolio | 632.7k $43.7m | Reduced -132.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.04% of their portfolio | 599.0k $41.3m | Added +69.8k |
| NEUBERGER BERMAN GROUP LLC 0.03% of their portfolio | 562.0k $38.8m | Added +470.0k |
| Epoch Investment Partners, Inc. 0.19% of their portfolio | 553.6k $38.2m | Reduced -53.3k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.34% of their portfolio | 518.8k $35.8m | Reduced -18.1k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 484.7k $33.5m | Added +233.7k |
| Artisan Partners Limited Partnership 0.05% of their portfolio | 477.9k $33.0m | Reduced -571.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 457.8k $31.6m | Reduced -206.7k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 435.6k $30.1m | Added +202.4k |
| LONDON CO OF VIRGINIA 0.16% of their portfolio | 424.3k $29.3m | Reduced -4.4k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 424.0k $29.3m | Added +13.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio | 424.0k $29.3m | New |
| SEI INVESTMENTS CO 0.04% of their portfolio | 421.5k $29.1m | Added +66.7k |
| FMR LLC 0.00% of their portfolio | 404.9k $27.9m | Reduced -858.1k |
| DAVENPORT & Co LLC 0.16% of their portfolio | 397.7k $27.5m | Added +58.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 383.3k $26.5m | Added +211.4k |
| DISCIPLINED GROWTH INVESTORS INC /MN 0.50% of their portfolio | 379.2k $26.2m | Reduced -34.1k |
| Aperture Investors, LLC 3.37% of their portfolio | 378.2k $26.1m | Reduced -68.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 374.0k $25.8m | Added +11.8k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 372.6k $25.7m | Reduced -379.9k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 368.8k $25.5m | Added +88.6k |
| Pembroke Management, LTD 3.17% of their portfolio | 368.5k $25.4m | Reduced -3.3k |
| Cerity Partners LLC 0.05% of their portfolio | 343.0k $23.7m | Reduced -98.5k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 329.0k $22.7m | Added +7.2k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 327.2k $22.6m | Added +25.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 319.4k $22.0m | Added +108.1k |
| FRED ALGER MANAGEMENT, LLC 0.10% of their portfolio | 318.7k $22.0m | Reduced -85.4k |
| Montanaro Asset Management Ltd 4.50% of their portfolio | 315.9k $21.8m | Reduced -6.4k |
| Woodline Partners LP 0.15% of their portfolio | 312.5k $21.6m | Added +124.1k |
| AXA S.A. 0.06% of their portfolio | 286.7k $19.8m | Added +45.6k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 283.4k $19.6m | Reduced -14.4k |
| Amundi 0.01% of their portfolio | 259.1k $17.1m | Added +29.6k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 256.1k $17.7m | First filing |
| Lombard Odier Asset Management (Europe) Ltd 1.13% of their portfolio | 253.6k $17.5m | Added +98.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 253.3k $17.5m | Reduced -1.3m |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.02% of their portfolio | 237.3k $16.4m | Added +2.4k |
| Erste Asset Management GmbH 0.19% of their portfolio | 226.2k $15.9m | Reduced -10.0k |
| STIFEL FINANCIAL CORP 0.02% of their portfolio | 224.5k $15.5m | Reduced -24.2k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 218.5k $15.1m | Added +99.2k |
| Swiss National Bank 0.01% of their portfolio | 213.8k $14.8m | Added +1.5k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 209.9k $14.5m | Added +111.1k |
| COMERICA BANK 0.06% of their portfolio | 209.6k $14.5m | Reduced -850 |
| TRILLIUM ASSET MANAGEMENT, LLC 0.37% of their portfolio | 207.5k $14.3m | Added +46.0k |
| DekaBank Deutsche Girozentrale 0.03% of their portfolio | 200.0k $13.9m | Unchanged |
| Achmea Investment Management B.V. 0.20% of their portfolio | 177.8k $12.3m | Reduced -15.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 176.7k $12.2m | Reduced -65.9k |
| Legal & General Group Plc 0.00% of their portfolio | 173.5k $12.0m | Reduced -469 |
| California Public Employees Retirement System 0.01% of their portfolio | 173.5k $12.0m | Reduced -15.0k |
| Polar Asset Management Partners Inc. 0.18% of their portfolio | 173.3k $12.0m | Reduced -136.1k |
| PineStone Asset Management Inc. 0.11% of their portfolio | 162.6k $11.2m | Added +23.2k |
| AMERICAN CAPITAL MANAGEMENT INC 0.41% of their portfolio | 160.3k $11.1m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 159.6k $11.0m | Added +2.8k |
| Summit Creek Advisors LLC 1.32% of their portfolio | 145.2k $10.0m | Reduced -56.4k |
| Retirement Systems of Alabama 0.03% of their portfolio | 130.3k $9.0m | Reduced -1.8k |
| Motley Fool Wealth Management, LLC 0.46% of their portfolio | 128.4k $8.9m | Reduced -3.8k |
| LPL Financial LLC 0.00% of their portfolio | 127.5k $8.8m | Added +28.2k |
| GW&K Investment Management, LLC 0.07% of their portfolio | 126.7k $8.7m | Reduced -114 |
| Corebridge Financial, Inc. 0.05% of their portfolio | 122.5k $8.5m | Reduced -7.4k |
| Park State Asset Management 4.59% of their portfolio | 118.2k $8.2m | Reduced -1.4k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.02% of their portfolio | 115.7k $8.0m | Unchanged |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 115.5k $8.0m | Reduced -400 |
| Empower Advisory Group, LLC 0.03% of their portfolio | 113.8k $7.9m | Added +7.4k |
| CAPITAL FUND MANAGEMENT S.A. 0.08% of their portfolio | 113.5k $7.8m | Reduced -45.6k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 110.7k $7.6m | Added +29.0k |