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 ($6.3m this quarter). Holder counts are more reliable. Shares outstanding: 108.8m as of 2023-04-24, 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 ≈ $48.72. Options: 11 managers hold calls ($21.2m notional), 11 hold puts ($15.4m).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 447 |
| Q4 2022 | 456 |
| Q1 2023 | 430 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $8.4m | $15.0m | 1.79 |
| Q4 2022 | $6.9m | $33.7m | 4.88 |
| Q1 2023 | $21.2m | $15.4m | 0.73 |
Biggest buyers
| Impax Asset Management Group plc | New | +1.1m |
| BlackRock Inc. | Added | +1.0m |
| ALLIANCEBERNSTEIN L.P. | Added | +969.7k |
| Artisan Partners Limited Partnership | Added | +877.1k |
| Liontrust Investment Partners LLP | Added | +675.9k |
| Point72 Asset Management, L.P. | Added | +424.0k |
| Balyasny Asset Management L.P. | Added | +295.0k |
| MACQUARIE GROUP LTD | Added | +250.9k |
| SEI INVESTMENTS CO | Added | +245.1k |
| Baird Financial Group, Inc. | Added | +212.8k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Sold out | -892.9k |
| BAMCO INC /NY/ | Reduced | -790.1k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -634.6k |
| AMERIPRISE FINANCIAL INC | Reduced | -532.7k |
| MARSHALL WACE, LLP | Reduced | -426.2k |
| GOLDMAN SACHS GROUP INC | Reduced | -358.0k |
| CITADEL ADVISORS LLC | Reduced | -338.4k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -313.8k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Reduced | -253.2k |
| Qube Research & Technologies Ltd | Reduced | -221.3k |
Biggest calls
| J. Goldman & Co LP | New | $13.0m267.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.3m68.4k shares |
| CITADEL ADVISORS LLC | Reduced | $1.6m32.7k shares |
| JANE STREET GROUP, LLC | Added | $1.3m25.9k shares |
| Walleye Trading LLC | Added | $978.3k20.1k shares |
| WOLVERINE TRADING, LLC | Added | $372.0k8.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $233.0k4.8k shares |
| Walleye Capital LLC | New | $180.1k3.7k shares |
| GROUP ONE TRADING LLC | Reduced | $121.7k2.5k shares |
| PEAK6 Investments LLC | New | $87.6k1.8k shares |
Biggest puts
| GOLDMAN SACHS GROUP INC | Added | $7.3m150.0k shares |
| Twin Tree Management, LP | New | $2.4m49.0k shares |
| CITADEL ADVISORS LLC | Reduced | $2.2m44.4k shares |
| JANE STREET GROUP, LLC | Reduced | $1.1m23.5k shares |
| SIMPLEX TRADING, LLC | Added | $593.0k12.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $584.0k12.0k shares |
| Walleye Trading LLC | Added | $496.4k10.2k shares |
| WOLVERINE TRADING, LLC | Reduced | $396.0k8.5k shares |
| GROUP ONE TRADING LLC | Added | $243.3k5.0k shares |
| Walleye Capital LLC | New | $87.6k1.8k 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)
Insider purchases and sales in Q1 2023
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 |
|---|---|---|---|---|---|
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 6 | $3.1m | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
None reported in Q1 2023.
Holders, Q1 2023
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.02% of their portfolio | 13.4m $653.2m | Added +1.0m |
| VANGUARD GROUP INC 0.01% of their portfolio | 10.3m $503.0m | Added +160.9k |
| WASATCH ADVISORS LP 1.83% of their portfolio | 6.0m $294.0m | Reduced -111.4k |
| Clearbridge Investments, LLC 0.21% of their portfolio | 4.6m $224.0m | Added +90.9k |
| ALLIANCEBERNSTEIN L.P. 0.08% of their portfolio | 4.0m $194.7m | Added +969.7k |
| STATE STREET CORP 0.01% of their portfolio | 3.5m $168.9m | Reduced -24.3k |
| MACQUARIE GROUP LTD 0.18% of their portfolio | 3.2m $154.2m | Added +250.9k |
| Artisan Partners Limited Partnership 0.23% of their portfolio | 2.8m $135.9m | Added +877.1k |
| BAMCO INC /NY/ 0.40% of their portfolio | 2.7m $132.5m | Reduced -790.1k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.44% of their portfolio | 2.6m $127.1m | Reduced -253.2k |
| Balyasny Asset Management L.P. 0.36% of their portfolio | 2.2m $109.4m | Added +295.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.9m $93.0m | Reduced -52.6k |
| Liontrust Investment Partners LLP 1.32% of their portfolio | 1.9m $90.4m | Added +675.9k |
| Conestoga Capital Advisors, LLC 1.48% of their portfolio | 1.8m $88.1m | Added +17.6k |
| AMERICAN CENTURY COMPANIES INC 0.05% of their portfolio | 1.3m $64.0m | Reduced -6.3k |
| Allspring Global Investments Holdings, LLC 0.11% of their portfolio | 1.3m $63.8m | Reduced -187.8k |
| GENEVA CAPITAL MANAGEMENT LLC 1.21% of their portfolio | 1.2m $59.5m | Added +18.5k |
| MORGAN STANLEY 0.01% of their portfolio | 1.2m $59.0m | Added +35.2k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.1m $53.6m | Added +63.8k |
| Impax Asset Management Group plc 0.22% of their portfolio | 1.1m $53.4m | New |
| Baird Financial Group, Inc. 0.13% of their portfolio | 1.1m $51.4m | Added +212.8k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.0m $48.9m | Reduced -74.8k |
| FEDERATED HERMES, INC. 0.11% of their portfolio | 916.5k $44.6m | Added +19.1k |
| NORGES BANK 0.01% of their portfolio | 896.8k $43.6m | Added +51.9k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.79% of their portfolio | 882.2k $42.9m | Added +234 |
| NORTHERN TRUST CORP 0.01% of their portfolio | 876.0k $42.6m | Added +12.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 823.5k $40.1m | Added +29.1k |
| D. E. Shaw & Co., Inc. 0.06% of their portfolio | 777.5k $37.8m | Reduced -57.3k |
| Stephens Investment Management Group LLC 0.61% of their portfolio | 747.9k $36.4m | Added +7.2k |
| LONDON CO OF VIRGINIA 0.21% of their portfolio | 741.8k $36.1m | Added +37.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 710.1k $34.6m | Added +6.2k |
| Epoch Investment Partners, Inc. 0.20% of their portfolio | 696.4k $33.9m | Reduced -15.5k |
| Montanaro Asset Management Ltd 5.21% of their portfolio | 690.0k $33.6m | Added +7.0k |
| Allianz Asset Management GmbH 0.07% of their portfolio | 686.0k $33.4m | Reduced -1.7k |
| Point72 Asset Management, L.P. 0.12% of their portfolio | 667.0k $32.5m | Added +424.0k |
| BLAIR WILLIAM & CO/IL 0.13% of their portfolio | 654.7k $31.9m | Added +31.1k |
| TD Asset Management Inc 0.04% of their portfolio | 629.6k $30.6m | Reduced -16.9k |
| SEI INVESTMENTS CO 0.05% of their portfolio | 606.5k $29.5m | Added +245.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 587.9k $28.6m | Added +34.4k |
| Handelsbanken Fonder AB 0.16% of their portfolio | 567.2k $27.6m | Added +200.0k |
| Capital Research Global Investors 0.01% of their portfolio | 535.6k $26.1m | Added +171.8k |
| Broad Bay Capital Management, LP 3.33% of their portfolio | 500.0k $24.3m | Added +100.0k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 467.9k $22.8m | Reduced -532.7k |
| Rathbones Group PLC 0.23% of their portfolio | 465.3k $22.6m | Reduced -15.8k |
| Aperture Investors, LLC 3.13% of their portfolio | 456.8k $22.2m | Reduced -9.4k |
| DISCIPLINED GROWTH INVESTORS INC /MN 0.55% of their portfolio | 437.0k $21.3m | Reduced -1.6k |
| TWO SIGMA ADVISERS, LP 0.05% of their portfolio | 406.6k $19.8m | Reduced -185.6k |
| Pembroke Management, LTD 2.08% of their portfolio | 391.1k $19.0m | Reduced -23.6k |
| Cerity Partners LLC 0.05% of their portfolio | 384.6k $18.7m | Reduced -11.9k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 367.9k $17.9m | Added +52.2k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 353.0k $17.2m | Added +8.8k |
| AGF MANAGEMENT LTD 0.11% of their portfolio | 342.3k $16.7m | Added +77.6k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 340.6k $16.6m | Unchanged |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 333.0k $16.2m | Reduced -338.4k |
| Erste Asset Management GmbH 0.30% of their portfolio | 331.3k $15.4m | Reduced -8.8k |
| TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio | 325.6k $15.8m | Reduced -634.6k |
| Invesco Ltd. 0.00% of their portfolio | 301.9k $14.7m | Added +12.2k |
| WCM INVESTMENT MANAGEMENT, LLC 0.05% of their portfolio | 297.6k $14.5m | Added +2.2k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 294.2k $14.3m | Reduced -25.2k |
| RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio | 280.8k $13.7m | Reduced -6.6k |
| NFJ INVESTMENT GROUP, LLC 0.36% of their portfolio | 279.5k $13.6m | Reduced -50.1k |
| Amundi 0.01% of their portfolio | 273.0k $13.0m | Added +107.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 269.6k $13.1m | Added +49.4k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.07% of their portfolio | 267.4k $13.0m | Added +87.6k |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 260.0k $12.7m | Reduced -3.0k |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.05% of their portfolio | 260.0k $12.7m | Added +18.5k |
| Aberdeen Group plc 0.03% of their portfolio | 257.2k $12.5m | Reduced -4.3k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.09% of their portfolio | 250.4k $12.2m | Added +48.4k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.12% of their portfolio | 246.3k $12.0m | Reduced -22.3k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 240.5k $11.7m | Added +3.3k |
| EAGLE ASSET MANAGEMENT INC 0.07% of their portfolio | 237.5k $11.6m | Added +16.3k |
| Summit Creek Advisors LLC 1.50% of their portfolio | 237.2k $11.5m | Added +1.8k |
| Swiss National Bank 0.01% of their portfolio | 236.8k $11.5m | Reduced -29.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 226.2k $11.0m | Added +31.5k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 220.7k $10.7m | Reduced -65.9k |
| California Public Employees Retirement System 0.01% of their portfolio | 219.6k $10.7m | Reduced -34.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 180.7k $8.8m | Reduced -1.3k |
| Legal & General Group Plc 0.00% of their portfolio | 173.3k $8.4m | Added +9.2k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.05% of their portfolio | 169.9k $8.3m | Reduced -1.6k |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 162.9k $7.9m | Reduced -221.3k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.16% of their portfolio | 162.7k $7.9m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 161.7k $7.9m | Added +4.4k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 161.6k $7.9m | Reduced -12.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 159.0k $7.7m | Reduced -358.0k |
| SVB WEALTH LLC 0.11% of their portfolio | 154.7k $7.5m | Reduced -20.0k |
| BARCLAYS PLC 0.01% of their portfolio | 147.2k $7.2m | Added +105.0k |
| Empower Advisory Group, LLC 0.03% of their portfolio | 146.7k $7.2m | First filing |
| Retirement Systems of Alabama 0.03% of their portfolio | 143.4k $7.0m | Reduced -1.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 137.6k $6.7m | Reduced -2.7k |
| Park State Asset Management 5.49% of their portfolio | 136.2k $6.6m | Added +9.9k |
| STRS OHIO 0.01% of their portfolio | 135.0k $6.6m | Added +55.0k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 127.6k $6.2m | Reduced -100 |
| Man Group plc 0.02% of their portfolio | 122.6k $6.0m | New |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 121.4k $5.9m | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 116.3k $5.7m | Reduced -92.9k |
| SOUTHERNSUN ASSET MANAGEMENT, LLC 0.64% of their portfolio | 114.9k $5.6m | Reduced -13.3k |
| Daiichi Life Insurance Co., Ltd. 0.12% of their portfolio | 112.9k $5.5m | Added +26.2k |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 109.4k $5.3m | Reduced -47.1k |
| B. Metzler seel. Sohn & Co. AG 0.08% of their portfolio | 108.2k $5.3m | Added +310 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.06% of their portfolio | 101.5k $4.9m | Reduced -1.9k |