TREX COMPANY INC (TREX) Institutional Ownership Changes & 13F Activity

TREX COMPANY INC (TREX) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Disciplined Growth Investors, Renaissance Technologies LLC, Mairs & Power Growth Fund, Alapocas Investment Partners, and Sequoia Financial Advisors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2019Polen Capital ManagementBuy1,22716,164$1,159
Q2 2019Disciplined Growth InvestorsBuy921665,082$47,686
Q1 2019Disciplined Growth InvestorsBuy1,713664,161$40,859
Q1 2019Polen Capital ManagementBuy94714,937$919
Q4 2018Renaissance Technologies LLCSell-137,900157,300$9,337
Q4 2018Disciplined Growth InvestorsSell-54,316662,448$39,323
Q4 2018Polen Capital ManagementBuy4,47613,990$830
Q3 2018Renaissance Technologies LLCBuy276,100295,200$22,724
Q3 2018Disciplined Growth InvestorsSell-17,128716,764$55,176
Q3 2018Polen Capital ManagementBuy7939,514$732
Q2 2018Disciplined Growth InvestorsBuy365,780733,892$45,934
Q2 2018Polen Capital ManagementBuy4,8338,721$546
Q1 2018Disciplined Growth InvestorsSell-1,727368,112$40,040
Q1 2018Polen Capital ManagementBuy1,1583,888$423
Q4 2017Renaissance Technologies LLCSell-26,70019,100$2,070
Q4 2017Disciplined Growth InvestorsSell-5,278369,839$40,087
Q4 2017Polen Capital ManagementBuy2,7302,730$296
Q3 2017Disciplined Growth InvestorsSell-19,125375,117$33,787
Q3 2017Renaissance Technologies LLCBuy13,60045,800$4,125
Q2 2017Renaissance Technologies LLCSell-81,20032,200$2,179
Q2 2017Disciplined Growth InvestorsSell-317394,242$26,674
Q1 2017Renaissance Technologies LLCSell-32,200113,400$7,869
Q1 2017Disciplined Growth InvestorsSell-5,850394,559$27,378
Q4 2016Disciplined Growth InvestorsBuy31,117400,409$25,786
Q4 2016Renaissance Technologies LLCSell-5,400145,600$9,377
Q3 2016Renaissance Technologies LLCBuy108,900151,000$8,867
Q3 2016Disciplined Growth InvestorsSell-5,725369,292$21,685
Q2 2016Renaissance Technologies LLCSell-53,90042,100$1,891
Q2 2016Disciplined Growth InvestorsSell-4,275375,017$16,846
Q1 2016Renaissance Technologies LLCBuy18,80096,000$4,601

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.

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