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 ($14.4m this quarter). Holder counts are more reliable. Shares outstanding: 107.1m as of 2024-10-14, 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 ≈ $66.69. Options: 12 managers hold calls ($28.9m notional), 10 hold puts ($11.7m).
Trends to Q3 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 219 | 206 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2023 | $85.7m | $71.6m | 0.84 |
| Q1 2024 | $31.9m | $45.9m | 1.44 |
| Q2 2024 | $36.4m | $43.5m | 1.20 |
| Q3 2024 | $28.9m | $11.7m | 0.40 |
Biggest buyers
| ALLIANCEBERNSTEIN L.P. | Added | +1.5m |
| WASATCH ADVISORS LP | Added | +1.0m |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +839.8k |
| JPMORGAN CHASE & CO | Added | +787.7k |
| D. E. Shaw & Co., Inc. | Added | +610.0k |
| Point72 Asset Management, L.P. | Added | +511.2k |
| Anomaly Capital Management, LP | New | +460.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Added | +435.1k |
| Polar Asset Management Partners Inc. | New | +309.4k |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Added | +299.4k |
Biggest sellers
| Artisan Partners Limited Partnership | Reduced | -2.3m |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Sold out | -1.9m |
| LORD, ABBETT & CO. LLC | Sold out | -733.5k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -408.7k |
| NORGES BANK | Reduced | -403.1k |
| Man Group plc | Reduced | -396.0k |
| BLAIR WILLIAM & CO/IL | Reduced | -378.9k |
| MACQUARIE GROUP LTD | Reduced | -349.4k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -278.6k |
| AMERIPRISE FINANCIAL INC | Reduced | -269.5k |
Biggest calls
| Walleye Capital LLC | Reduced | $10.7m160.7k shares |
| GOLDMAN SACHS GROUP INC | New | $6.7m100.0k shares |
| CITADEL ADVISORS LLC | Reduced | $6.2m93.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.2m33.7k shares |
| WOLVERINE TRADING, LLC | New | $943.7k13.9k shares |
| TORNO CAPITAL, LLC | Unchanged | $612.5k9.2k shares |
| Cubist Systematic Strategies, LLC | New | $585.9k8.8k shares |
| SIMPLEX TRADING, LLC | Reduced | $499.0k7.5k shares |
| JANE STREET GROUP, LLC | Reduced | $379.5k5.7k shares |
| Walleye Trading LLC | Reduced | $66.6k1.0k shares |
Biggest puts
| Parallax Volatility Advisers, L.P. | Unchanged | $4.2m62.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.9m43.3k shares |
| CITADEL ADVISORS LLC | Reduced | $2.0m30.6k shares |
| Cubist Systematic Strategies, LLC | New | $779.0k11.7k shares |
| WOLVERINE TRADING, LLC | New | $617.8k9.1k shares |
| JANE STREET GROUP, LLC | Reduced | $579.2k8.7k shares |
| Walleye Capital LLC | Reduced | $326.2k4.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $206.0k3.1k shares |
| Walleye Trading LLC | Reduced | $66.6k1.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 Q3 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 |
|---|---|---|---|---|---|
| Q4 2022 | 0 | — | 0 | — | — |
| 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 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-07-03 | Rudolph Jacob T. SVP, CHRO | Bought | $2.8k44 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, Q3 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 13.8m $916.8m | First filing |
| VANGUARD GROUP INC 0.01% of their portfolio | 10.2m $680.4m | Reduced -61.9k |
| ALLIANCEBERNSTEIN L.P. 0.16% of their portfolio | 7.0m $466.1m | Added +1.5m |
| WASATCH ADVISORS LP 1.33% of their portfolio | 4.1m $271.4m | Added +1.0m |
| Clearbridge Investments, LLC 0.21% of their portfolio | 3.9m $261.2m | Reduced -188.0k |
| STATE STREET CORP 0.01% of their portfolio | 3.2m $212.0m | Added +37.4k |
| BAMCO INC /NY/ 0.36% of their portfolio | 2.0m $134.9m | Reduced -244.7k |
| Conestoga Capital Advisors, LLC 1.76% of their portfolio | 2.0m $129.9m | Reduced -23.3k |
| MACQUARIE GROUP LTD 0.14% of their portfolio | 1.9m $128.4m | Reduced -349.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.9m $124.8m | Added +35.0k |
| AMERICAN CENTURY COMPANIES INC 0.07% of their portfolio | 1.8m $122.4m | Reduced -4.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.6m $106.2m | Added +787.7k |
| GENEVA CAPITAL MANAGEMENT LLC 1.77% of their portfolio | 1.6m $106.0m | Added +6.6k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.5m $100.1m | Added +279.4k |
| FMR LLC 0.01% of their portfolio | 1.3m $84.1m | Added +71.8k |
| Invesco Ltd. 0.02% of their portfolio | 1.2m $83.2m | Reduced -152.9k |
| TD Asset Management Inc 0.07% of their portfolio | 1.1m $76.5m | Reduced -220.6k |
| Balyasny Asset Management L.P. 0.19% of their portfolio | 1.1m $72.5m | Reduced -126.2k |
| Artisan Partners Limited Partnership 0.10% of their portfolio | 1.0m $69.9m | Reduced -2.3m |
| Point72 Asset Management, L.P. 0.24% of their portfolio | 1.0m $68.1m | Added +511.2k |
| Liontrust Investment Partners LLP 1.03% of their portfolio | 974.8k $72.2m | Unchanged |
| NORGES BANK 0.01% of their portfolio | 960.6k $64.0m | Reduced -403.1k |
| FEDERATED HERMES, INC. 0.13% of their portfolio | 902.5k $60.1m | Added +128.4k |
| MORGAN STANLEY 0.00% of their portfolio | 902.4k $60.1m | Added +195.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 902.1k $60.1m | Added +28.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.22% of their portfolio | 853.6k $56.8m | Added +839.8k |
| Impax Asset Management Group plc 0.22% of their portfolio | 822.4k $54.8m | Added +252.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 795.5k $53.0m | Reduced -23.5k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 792.9k $52.8m | Reduced -125.7k |
| Baird Financial Group, Inc. 0.10% of their portfolio | 776.5k $51.7m | Reduced -105.7k |
| BLAIR WILLIAM & CO/IL 0.15% of their portfolio | 765.2k $50.9m | Reduced -378.9k |
| D. E. Shaw & Co., Inc. 0.07% of their portfolio | 752.5k $50.1m | Added +610.0k |
| Stephens Investment Management Group LLC 0.68% of their portfolio | 748.1k $49.8m | Reduced -22.8k |
| CITADEL ADVISORS LLC 0.05% of their portfolio | 707.8k $47.1m | Added +36.6k |
| Capital Research Global Investors 0.01% of their portfolio | 705.3k $47.0m | Unchanged |
| Allianz Asset Management GmbH 0.07% of their portfolio | 687.1k $45.7m | Added +156.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 668.3k $44.5m | Reduced -15.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 664.5k $44.2m | Added +65.5k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.75% of their portfolio | 657.1k $43.7m | Added +346 |
| Epoch Investment Partners, Inc. 0.18% of their portfolio | 606.9k $40.4m | Reduced -211.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 556.1k $37.0m | Reduced -52.1k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.34% of their portfolio | 536.9k $35.7m | Added +299.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio | 529.1k $35.2m | Added +435.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.05% of their portfolio | 495.0k $33.0m | Added +232.2k |
| Anomaly Capital Management, LP 1.09% of their portfolio | 460.9k $30.7m | New |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 447.1k $29.8m | Reduced -72.1k |
| Aperture Investors, LLC 3.78% of their portfolio | 446.9k $29.8m | Added +118.3k |
| Cerity Partners LLC 0.07% of their portfolio | 441.5k $29.4m | Reduced -69.9k |
| LONDON CO OF VIRGINIA 0.15% of their portfolio | 428.7k $28.5m | Added +35.9k |
| DISCIPLINED GROWTH INVESTORS INC /MN 0.52% of their portfolio | 413.3k $27.5m | Added +1.7k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 410.5k $27.3m | Reduced -269.5k |
| FRED ALGER MANAGEMENT, LLC 0.13% of their portfolio | 404.1k $26.9m | Reduced -105.8k |
| Pembroke Management, LTD 3.16% of their portfolio | 371.8k $24.8m | Added +60.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 362.1k $24.1m | Reduced -81.0k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 354.8k $23.6m | Reduced -77.5k |
| DAVENPORT & Co LLC 0.13% of their portfolio | 339.5k $22.6m | Added +92.3k |
| Montanaro Asset Management Ltd 3.82% of their portfolio | 322.3k $21.5m | Added +17.3k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 321.8k $21.4m | Reduced -6.4k |
| Polar Asset Management Partners Inc. 0.49% of their portfolio | 309.4k $20.6m | New |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 301.7k $20.1m | Reduced -10.6k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 297.8k $19.8m | Added +2.2k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 280.2k $18.7m | Reduced -4.2k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 251.0k $16.7m | Added +44.8k |
| STIFEL FINANCIAL CORP 0.02% of their portfolio | 248.7k $16.6m | Reduced -7.5k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 242.6k $16.2m | Reduced -31.1k |
| AXA S.A. 0.05% of their portfolio | 241.1k $16.0m | New |
| Erste Asset Management GmbH 0.19% of their portfolio | 236.2k $16.0m | Reduced -8.1k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.02% of their portfolio | 234.9k $15.9m | Added +125.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 233.2k $15.5m | Reduced -29.4k |
| Amundi 0.01% of their portfolio | 229.5k $14.9m | Added +3.7k |
| Swiss National Bank 0.01% of their portfolio | 212.3k $14.1m | Reduced -1.4k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 211.2k $14.1m | Added +157.4k |
| COMERICA BANK 0.06% of their portfolio | 210.5k $14.0m | Reduced -6.6k |
| RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio | 210.1k $14.0m | Added +11.9k |
| WCM INVESTMENT MANAGEMENT, LLC 0.03% of their portfolio | 209.8k $14.2m | Added +2.1k |
| Summit Creek Advisors LLC 1.82% of their portfolio | 201.6k $13.4m | Reduced -12.2k |
| DekaBank Deutsche Girozentrale 0.02% of their portfolio | 200.0k $13.4m | Unchanged |
| Achmea Investment Management B.V. 0.21% of their portfolio | 193.2k $12.9m | Reduced -17.7k |
| California Public Employees Retirement System 0.01% of their portfolio | 188.5k $12.5m | Reduced -26.1k |
| Woodline Partners LP 0.11% of their portfolio | 188.4k $12.5m | New |
| Legal & General Group Plc 0.00% of their portfolio | 174.0k $11.6m | Reduced -1.6k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 171.9k $11.4m | Reduced -408.7k |
| TRILLIUM ASSET MANAGEMENT, LLC 0.26% of their portfolio | 161.4k $10.7m | Added +18.2k |
| Squarepoint Ops LLC 0.03% of their portfolio | 159.4k $10.6m | Reduced -39.5k |
| CAPITAL FUND MANAGEMENT S.A. 0.12% of their portfolio | 159.2k $10.6m | Added +108.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 156.8k $10.4m | Reduced -19.0k |
| Lombard Odier Asset Management (Europe) Ltd 0.47% of their portfolio | 154.8k $10.3m | Added +42.9k |
| BARCLAYS PLC 0.00% of their portfolio | 149.6k $10.0m | Added +12.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 149.6k $10.0m | Added +69.1k |
| PineStone Asset Management Inc. 0.09% of their portfolio | 139.4k $9.3m | Unchanged |
| J. Goldman & Co LP 0.40% of their portfolio | 138.7k $9.2m | New |
| Motley Fool Wealth Management, LLC 0.44% of their portfolio | 132.2k $8.8m | Added +58.3k |
| Retirement Systems of Alabama 0.03% of their portfolio | 132.1k $8.8m | Reduced -2.1k |
| Corebridge Financial, Inc. 0.05% of their portfolio | 129.8k $8.6m | Reduced -9.0k |
| GW&K Investment Management, LLC 0.07% of their portfolio | 126.8k $8.4m | New |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 120.2k $8.2m | Added +83.5k |
| Park State Asset Management 4.68% of their portfolio | 119.7k $8.0m | Added +925 |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 119.5k $8.0m | Reduced -5 |
| Fisher Asset Management, LLC 0.00% of their portfolio | 119.3k $7.9m | Added +21.6k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.14% of their portfolio | 116.7k $7.8m | Reduced -16.6k |