Trex Company, Inc.
MX ˙ BMV ˙ US89531P1057
SecurityMX:TREX1 / Trex Company, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership48,224 shares
Latest Disclosed Value $ 1,756
Amalgamated Bank reports 0.11% decrease in ownership of TREX1 / Trex Company, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 48,224 shares of Trex Company, Inc. (MX:TREX1) valued at $1,756 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 48,275 shares of Trex Company, Inc.. This represents a change in shares of -0.11% during the quarter.

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)
2026-05-08 2026-03-31 13F TREX COM 89531P105 48,224 -51 -0.11 2 0.00 0.0134
2026-02-05 2025-12-31 13F TREX COM 89531P105 48,275 -656 -1.34 2 -50.00 0.0122
2025-10-29 2025-09-30 13F TREX COM 89531P105 48,931 -25 -0.05 3 0.00 0.0181
2025-08-04 2025-06-30 13F TREX COM 89531P105 48,956 -1,886 -3.71 3 0.00 0.0205
2025-04-25 2025-03-31 13F TREX COM 89531P105 50,842 -1,711 -3.26 3 -33.33 0.0253
2025-02-04 2024-12-31 13F TREX COM 89531P105 52,553 -837 -1.57 4 0.00 0.0298
2024-10-30 2024-09-30 13F TREX COM 89531P105 53,390 -2,920 -5.19 4 -25.00 0.0293
2024-08-12 2024-06-30 13F TREX COM 89531P105 56,310 -4,105 -6.79 4 -33.33 0.0356
2024-04-23 2024-03-31 13F TREX COM 89531P105 60,415 -19,334 -24.24 6 0.00 0.0515
2024-02-06 2023-12-31 13F TREX COM 89531P105 79,749 1,138 1.45 7 50.00 0.0527
2023-11-08 2023-09-30 13F TREX COM 89531P105 78,611 315 0.40 5 -20.00 0.0413
2023-08-11 2023-06-30 13F TREX COM 89531P105 78,296 -2,694 -3.33 5 66.67 0.0415
2023-05-02 2023-03-31 13F TREX COM 89531P105 80,990 -4,018 -4.73 4 0.00 0.0336
2023-02-10 2022-12-31 13F TREX COM 89531P105 85,008 720 0.85 4 -99.92 0.0321
2022-11-09 2022-09-30 13F TREX COM 89531P105 84,288 -362 -0.43 3,704 -19.60 0.0358
2022-08-15 2022-06-30 13F TREX COM 89531P105 84,650 -1,491 -1.73 4,607 -18.14 0.0429
2022-08-25 2022-03-31 13F/A-1 TREX COM 89531P105 86,141 -208 -0.24 5,628 -51.73 0.0437
2022-06-30 2022-03-31 13F TREX COM 89531P105 86,141 -208 5,628 0.0447
2022-02-15 2021-12-31 13F/A-1 TREX COM 89531P105 86,349 1,987 2.36 11,660 35.60 0.0861
2022-02-15 2021-12-31 13F TREX COM 89531P105 86,349 1,987 11,660 0.0861
2021-10-29 2021-09-30 13F TREX COM 89531P105 84,362 -8,683 -9.33 8,599 -9.58 0.0726
2021-08-16 2021-06-30 13F TREX COM 89531P105 93,045 70,640 315.29 9,510 363.68 0.0762
2021-05-13 2021-03-31 13F TREX COM 89531P105 22,405 -1,998 -8.19 2,051 0.39 0.0769
2021-02-12 2020-12-31 13F TREX COM 89531P105 24,403 71 0.29 2,043 17.28 0.0774
2020-10-30 2020-09-30 13F TREX COM 89531P105 24,332 11,821 94.48 1,742 7.07 0.0757
2020-08-10 2020-06-30 13F TREX COM 89531P105 12,511 1,502 13.64 1,627 84.47 0.0753
2020-05-13 2020-03-31 13F TREX COM 89531P105 11,009 -346 -3.05 882 -13.61 0.0216
2020-02-13 2019-12-31 13F TREX COM 89531P105 11,355 439 4.02 1,021 2.82 0.0188
2019-11-13 2019-09-30 13F TREX COM 89531P105 10,916 -167 -1.51 993 24.91 0.0209
2019-08-14 2019-06-30 13F TREX COM 89531P105 11,083 1,571 16.52 795 35.90 0.0186
2019-05-15 2019-03-31 13F TREX COM 89531P105 9,512 261 2.82 585 6.56 0.0142
2019-02-15 2018-12-31 13F TREX COM 89531P105 9,251 5,171 126.74 549 74.84 0.0156
2018-11-14 2018-09-30 13F TREX COM 89531P105 4,080 -5,566 -57.70 314 -48.01 0.0078
2018-07-18 2018-06-30 13F TREX COM 89531P105 9,646 5,401 127.23 604 30.74 0.0148
2018-05-22 2018-03-31 13F TREX COM 89531P105 4,245 -80 -1.85 462 -1.49 0.0123
2018-02-13 2017-12-31 13F TREX COM 89531P105 4,325 265 6.53 469 28.14 0.0127
2017-11-09 2017-09-30 13F TREX COM 89531P105 4,060 -30 -0.73 366 32.13 0.0114
2017-08-10 2017-06-30 13F TREX COM 89531P105 4,090 192 4.93 277 2.59 0.0091
2017-05-12 2017-03-31 13F TREX COM 89531P105 3,898 -7 -0.18 270 7.57 0.0134
2017-02-14 2016-12-31 13F TREX COM 89531P105 3,905 3,905 251 0.0113
2016-11-15 2016-09-30 13F/A-1 TREX COM 89531P105 0 -3,406 -100.00 0 -100.00
2016-08-16 2016-06-30 13F TREX COM 89531P105 3,406 3,406 205 0.0119
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.