Trex Company, Inc.
US ˙ NYSE ˙ US89531P1057

SecurityTREX / Trex Company, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership8,531 shares
Latest Disclosed Value $ 310,699
Quantbot Technologies LP reports 94.18% decrease in ownership of TREX / Trex Company, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 8,531 shares of Trex Company, Inc. (US:TREX) valued at $310,699 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 146,579 shares of Trex Company, Inc.. This represents a change in shares of -94.18% during the quarter. The current value of the position is $346,017 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F TREX COM 89531P105 8,531 -138,048 -94.18 311 -93.97 0.0127
2026-02-10 2025-12-31 13F TREX COM 89531P105 146,579 146,579 5,142 0.1710
2025-11-12 2025-09-30 13F TREX COM 89531P105 0 -10,023 -100.00 0 -100.00
2025-08-13 2025-06-30 13F TREX COM 89531P105 10,023 10,023 545 0.0140
2025-02-11 2024-12-31 13F TREX COM 89531P105 0 -49,151 -100.00 0 -100.00
2024-11-13 2024-09-30 13F TREX COM 89531P105 49,151 2,430 5.20 3,272 -5.49 0.1291
2024-08-09 2024-06-30 13F TREX COM 89531P105 46,721 26,451 130.49 3,463 71.30 0.1676
2024-05-06 2024-03-31 13F TREX COM 89531P105 20,270 -6,671 -24.76 2,022 -9.37 0.1139
2024-02-14 2023-12-31 13F TREX COM 89531P105 26,941 -36,935 -57.82 2,230 -43.34 0.1295
2023-11-07 2023-09-30 13F TREX COM 89531P105 63,876 28,746 81.83 3,937 70.91 0.2646
2023-08-08 2023-06-30 13F TREX COM 89531P105 35,130 18,500 111.24 2,303 184.67 0.1508
2023-05-12 2023-03-31 13F TREX COM 89531P105 16,630 -43,782 -72.47 809 -68.36 0.0573
2023-02-13 2022-12-31 13F TREX COM 89531P105 60,412 -4,316 -6.67 2,557 -10.09 0.1834
2022-11-07 2022-09-30 13F TREX COM 89531P105 64,728 53,770 490.69 2,844 377.18 0.2147
2022-08-09 2022-06-30 13F TREX COM 89531P105 10,958 -36,710 -77.01 596 -80.86 0.0548
2022-05-16 2022-03-31 13F TREX COM 89531P105 47,668 39,017 451.01 3,114 166.61 0.2716
2022-02-11 2021-12-31 13F TREX COM 89531P105 8,651 2,744 46.45 1,168 94.02 0.0947
2021-11-09 2021-09-30 13F TREX COM 89531P105 5,907 5,907 602 0.0440
2021-08-12 2021-06-30 13F TREX COM 89531P105 0 -98 -100.00 0 -100.00
2021-05-14 2021-03-31 13F TREX COM 89531P105 98 98 8 0.0008
2020-08-13 2020-06-30 13F TREX COM 89531P105 0 -549 -100.00 0 -100.00
2020-05-13 2020-03-31 13F TREX COM 89531P105 549 549 43 0.0280
2020-02-10 2019-12-31 13F TREX COM 89531P105 0 -547 -100.00 0 -100.00
2019-11-12 2019-09-30 13F TREX COM 89531P105 547 547 49 0.0048
2017-11-07 2017-09-30 13F TREX COM 89531P105 0 -942 -100.00 0 -100.00
2017-08-11 2017-06-30 13F TREX COM 89531P105 942 -877 -48.21 63 -50.00 0.0059
2017-05-10 2017-03-31 13F TREX COM 89531P105 1,819 -3,240 -64.04 126 -61.23 0.0132
2017-02-09 2016-12-31 13F TREX COM 89531P105 5,059 1,969 63.72 325 79.56 0.0360
2016-10-31 2016-09-30 13F TREX COM 89531P105 3,090 3,090 0.00 181 0.0201
2016-08-02 2016-06-30 13F TREX COM 89531P105 0 -4,565 -100.00 0 -100.00
2016-04-28 2016-03-31 13F TREX COM 89531P105 4,565 4,565 0.00 218 0.0349
2016-01-22 2015-12-31 13F TREX COM 89531P105 0 -6,442 -100.00 0 -100.00
2015-10-22 2015-09-30 13F TREX COM 89531P105 6,442 5,649 712.36 214 448.72 0.0373
2015-07-27 2015-06-30 13F TREX COM 89531P105 793 96 13.77 39 2.63 0.0070
2015-04-24 2015-03-31 13F TREX COM 89531P105 697 697 0.00 38 0.0094
2015-01-27 2014-12-31 13F TREX COM 89531P105 0 -104 -100.00 0 -100.00
2014-10-15 2014-09-30 13F TREX COM 89531P105 104 -14,244 -99.28 3 -99.27 0.0004
2014-07-08 2014-06-30 13F TREX COM 89531P105 14,348 14,348 413 0.0653
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.