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 ($5.7m this quarter). Holder counts are more reliable. Shares outstanding: 109.7m as of 2022-10-17, 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 ≈ $43.97. Options: 13 managers hold calls ($8.4m notional), 14 hold puts ($15.0m).
Biggest calls
| CITADEL ADVISORS LLC | — | $3.6m82.9k shares |
| JANE STREET GROUP, LLC | — | $1.4m32.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $905.0k20.6k shares |
| TWO SIGMA SECURITIES, LLC | — | $659.0k15.0k shares |
| CAPITAL FUND MANAGEMENT S.A. | — | $571.2k13.0k shares |
| SIMPLEX TRADING, LLC | — | $298.0k6.8k shares |
| PEAK6 Investments LLC | — | $250.0k5.7k shares |
| WOLVERINE TRADING, LLC | — | $218.0k4.9k shares |
| TUDOR INVESTMENT CORP ET AL | — | $212.0k4.8k shares |
| Walleye Trading LLC | — | $110.0k2.5k shares |
Biggest puts
| CITADEL ADVISORS LLC | — | $4.5m102.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $2.9m65.8k shares |
| JANE STREET GROUP, LLC | — | $1.6m37.1k shares |
| SIMPLEX TRADING, LLC | — | $1.6m37.0k shares |
| GOLDMAN SACHS GROUP INC | — | $1.4m31.8k shares |
| PEAK6 Investments LLC | — | $1.2m28.2k shares |
| WOLVERINE TRADING, LLC | — | $675.0k15.2k shares |
| Cubist Systematic Strategies, LLC | — | $400.0k9.1k shares |
| TWO SIGMA SECURITIES, LLC | — | $294.0k6.7k shares |
| GROUP ONE TRADING LLC | — | $277.0k6.3k 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 2022
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 2020 | 0 | — | 0 | — | — |
| Q1 2021 | 0 | — | 0 | — | — |
| 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 | — | — |
None reported in Q3 2022.
Holders, Q3 2022
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.02% of their portfolio | 10.9m $480.9m | — |
| VANGUARD GROUP INC 0.01% of their portfolio | 10.1m $443.2m | — |
| ALLIANCEBERNSTEIN L.P. 0.15% of their portfolio | 7.2m $314.5m | — |
| WASATCH ADVISORS LP 1.67% of their portfolio | 5.5m $240.1m | — |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.04% of their portfolio | 5.1m $222.3m | — |
| Clearbridge Investments, LLC 0.20% of their portfolio | 4.5m $198.5m | — |
| STATE STREET CORP 0.01% of their portfolio | 3.5m $151.8m | — |
| BAMCO INC /NY/ 0.49% of their portfolio | 3.4m $151.4m | — |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.52% of their portfolio | 3.0m $131.8m | — |
| MACQUARIE GROUP LTD 0.16% of their portfolio | 2.9m $126.8m | — |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.9m $85.5m | — |
| Artisan Partners Limited Partnership 0.15% of their portfolio | 1.9m $84.6m | — |
| Conestoga Capital Advisors, LLC 1.54% of their portfolio | 1.8m $78.7m | — |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 1.5m $65.6m | — |
| Balyasny Asset Management L.P. 0.24% of their portfolio | 1.4m $62.8m | — |
| GENEVA CAPITAL MANAGEMENT LLC 1.23% of their portfolio | 1.2m $53.3m | — |
| TWO SIGMA INVESTMENTS, LP 0.16% of their portfolio | 1.1m $47.2m | — |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.1m $46.4m | — |
| FEDERATED HERMES, INC. 0.13% of their portfolio | 995.4k $43.7m | — |
| EVENTIDE ASSET MANAGEMENT, LLC 0.86% of their portfolio | 990.0k $43.5m | — |
| NORGES BANK 0.01% of their portfolio | 896.8k $39.4m | — |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 894.5k $39.3m | — |
| MORGAN STANLEY 0.01% of their portfolio | 888.0k $39.0m | — |
| NORTHERN TRUST CORP 0.01% of their portfolio | 866.0k $38.1m | — |
| BLAIR WILLIAM & CO/IL 0.17% of their portfolio | 862.4k $37.9m | — |
| Handelsbanken Fonder AB 0.24% of their portfolio | 814.0k $35.8m | — |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 790.9k $34.8m | — |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 742.8k $32.6m | — |
| Stephens Investment Management Group LLC 0.62% of their portfolio | 742.5k $32.6m | — |
| Montanaro Asset Management Ltd 4.90% of their portfolio | 728.0k $32.0m | — |
| Allianz Asset Management GmbH 0.07% of their portfolio | 688.8k $30.3m | — |
| Baird Financial Group, Inc. 0.09% of their portfolio | 685.4k $30.1m | — |
| Allspring Global Investments Holdings, LLC 0.05% of their portfolio | 683.6k $30.0m | — |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 649.0k $28.5m | — |
| TWO SIGMA ADVISERS, LP 0.07% of their portfolio | 585.9k $25.7m | — |
| Aberdeen Group plc 0.08% of their portfolio | 579.5k $25.5m | — |
| MARSHALL WACE, LLP 0.06% of their portfolio | 550.0k $24.2m | — |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 519.3k $22.8m | — |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 480.0k $21.1m | — |
| SEI INVESTMENTS CO 0.04% of their portfolio | 457.4k $20.1m | — |
| DISCIPLINED GROWTH INVESTORS INC /MN 0.53% of their portfolio | 438.4k $19.3m | — |
| Rathbones Group PLC 0.23% of their portfolio | 433.1k $19.0m | — |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 430.7k $18.9m | — |
| STIFEL FINANCIAL CORP 0.03% of their portfolio | 427.3k $18.8m | — |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 425.7k $18.7m | — |
| Pembroke Management, LTD 2.05% of their portfolio | 419.5k $18.4m | — |
| Broad Bay Capital Management, LP 3.10% of their portfolio | 400.0k $17.6m | — |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 365.9k $16.1m | — |
| NFJ INVESTMENT GROUP, LLC 0.39% of their portfolio | 337.8k $14.8m | — |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 334.1k $14.7m | — |
| Maryland Capital Management 1.17% of their portfolio | 320.5k $14.1m | — |
| Erste Asset Management GmbH 0.31% of their portfolio | 310.4k $13.8m | — |
| Invesco Ltd. 0.00% of their portfolio | 302.0k $13.3m | — |
| Candriam S.C.A. 0.09% of their portfolio | 293.3k $12.9m | — |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 1.58% of their portfolio | 275.4k $12.1m | — |
| RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio | 270.8k $11.9m | — |
| Swiss National Bank 0.01% of their portfolio | 268.4k $11.8m | — |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 267.1k $11.7m | — |
| Aperture Investors, LLC 1.85% of their portfolio | 256.3k $11.3m | — |
| California Public Employees Retirement System 0.01% of their portfolio | 253.4k $11.1m | — |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.13% of their portfolio | 248.8k $10.9m | — |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 246.0k $10.8m | — |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.05% of their portfolio | 244.9k $10.8m | — |
| Man Group plc 0.05% of their portfolio | 242.6k $10.7m | — |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 240.5k $10.6m | — |
| Summit Creek Advisors LLC 1.42% of their portfolio | 234.8k $10.3m | — |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.02% of their portfolio | 226.9k $10.0m | — |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 224.1k $9.8m | — |
| Schonfeld Strategic Advisors LLC 0.08% of their portfolio | 216.3k $9.5m | — |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 216.2k $9.5m | — |
| Cubist Systematic Strategies, LLC 0.07% of their portfolio | 203.7k $9.0m | — |
| Qube Research & Technologies Ltd 0.06% of their portfolio | 198.2k $8.7m | — |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.05% of their portfolio | 195.8k $8.6m | — |
| EATON VANCE MANAGEMENT 0.01% of their portfolio | 193.8k $8.5m | — |
| SVB WEALTH LLC 0.12% of their portfolio | 190.7k $8.4m | — |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 190.1k $8.4m | — |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 186.3k $8.2m | — |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 182.3k $8.0m | — |
| COMERICA BANK 0.07% of their portfolio | 180.1k $8.1m | — |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 179.1k $7.9m | — |
| AMERICAN INTERNATIONAL GROUP, INC. 0.06% of their portfolio | 174.6k $7.7m | — |
| Legal & General Group Plc 0.00% of their portfolio | 173.6k $7.6m | — |
| LPL Financial LLC 0.01% of their portfolio | 170.6k $7.5m | — |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 168.7k $7.4m | — |
| AGF Investments America Inc. 2.62% of their portfolio | 161.5k $7.1m | — |
| DF DENT & CO INC 0.10% of their portfolio | 153.8k $6.8m | — |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 148.3k $6.5m | — |
| Retirement Systems of Alabama 0.03% of their portfolio | 144.4k $6.3m | — |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 141.2k $6.2m | — |
| Edgestream Partners, L.P. 0.48% of their portfolio | 140.0k $6.2m | — |
| Epoch Investment Partners, Inc. 0.04% of their portfolio | 132.9k $5.8m | — |
| Amundi 0.00% of their portfolio | 132.2k $6.3m | — |
| AGF INVESTMENTS INC. 0.05% of their portfolio | 131.3k $5.8m | — |
| TD Asset Management Inc 0.01% of their portfolio | 128.4k $5.7m | — |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 127.7k $5.6m | — |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 126.7k $5.6m | — |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 125.9k $5.5m | — |
| AXA S.A. 0.01% of their portfolio | 124.7k $5.5m | — |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 120.1k $5.3m | — |
| Ashfield Capital Partners, LLC 0.44% of their portfolio | 118.5k $5.2m | — |