TREX COMPANY INC (TREX) Stock Institutional Trading Activity


TREX COMPANY INC (TREX) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Disciplined Growth Investors, Mairs & Power Growth Fund, Alapocas Investment Partners, and Sequoia Financial Advisors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2021Alapocas Investment PartnersBuy81,50581,505$11,006
Q4 2021Renaissance Technologies LLCSell-10,300153,400$20,714
Q4 2021Disciplined Growth InvestorsSell-8,915436,682$58,965
Q3 2021Polen Capital ManagementBuy1,06232,176$3,280
Q3 2021Renaissance Technologies LLCBuy137,300163,700$16,686
Q3 2021Disciplined Growth InvestorsSell-175,087445,597$45,420
Q2 2021Polen Capital ManagementSell-37,09531,114$3,180
Q2 2021Disciplined Growth InvestorsBuy51,467620,684$63,440
Q1 2021Polen Capital ManagementSell-36,19668,209$6,244
Q1 2021Disciplined Growth InvestorsSell-74,785569,217$52,106
Q4 2020Polen Capital ManagementBuy19,282104,405$8,741
Q4 2020Disciplined Growth InvestorsSell-34,824644,002$53,916
Q3 2020Polen Capital ManagementBuy49,56085,123$6,095
Q3 2020Disciplined Growth InvestorsBuy336,622678,826$48,604
Q2 2020Polen Capital ManagementBuy4,05835,563$4,626
Q2 2020Disciplined Growth InvestorsSell-203,587342,204$44,510
Q1 2020Polen Capital ManagementBuy12,64831,505$2,525
Q1 2020Disciplined Growth InvestorsSell-108,877545,791$43,740
Q4 2019Polen Capital ManagementBuy2,54918,857$1,695
Q4 2019Renaissance Technologies LLCSell-130,90026,400$2,373
Q4 2019Disciplined Growth InvestorsSell-8,644654,668$58,842
Q3 2019Polen Capital ManagementBuy14416,308$1,483
Q3 2019Disciplined Growth InvestorsSell-1,770663,312$60,315
Q2 2019Polen Capital ManagementBuy1,22716,164$1,159
Q2 2019Disciplined Growth InvestorsBuy921665,082$47,686
Q1 2019Polen Capital ManagementBuy94714,937$919
Q1 2019Disciplined Growth InvestorsBuy1,713664,161$40,859
Q4 2018Polen Capital ManagementBuy4,47613,990$830
Q4 2018Renaissance Technologies LLCSell-137,900157,300$9,337
Q4 2018Disciplined Growth InvestorsSell-54,316662,448$39,323

Frequently asked questions about TREX activity

  • Which institutional owners are buying TREX?

    Institutional owners buying TREX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in TREX activity?

    "Buy" means an investor increased their reported position in TREX compared to the prior reporting period. This reflects growing exposure to TREX COMPANY INC (TREX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in TREX increasing?

    Institutional interest in TREX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.