ENTEGRIS INC (ENTG) Stock Institutional Trading Activity


ENTEGRIS INC (ENTG) 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 Lone Pine Capital, Mairs & Power Growth Fund, Cantillon Capital Management, Durable Capital Partners, and Torray Fund. 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
Q2 2023Mairs & Power Growth FundBuy27,6381,125,182$124,692,669
Q2 2023Cantillon Capital ManagementBuy184,4693,088,950$342,317,439
Q1 2023Torray FundBuy6613,138$1,077,447
Q1 2023Renaissance Technologies LLCSell-104,8004,510$370
Q1 2023Mairs & Power Growth FundBuy104,1361,097,544$90,009,583
Q1 2023Cantillon Capital ManagementSell-51,7332,904,481$238,196,486
Q4 2022Torray FundSell-15,79513,072$857,392
Q4 2022Renaissance Technologies LLCBuy45,440109,310$7,170
Q4 2022Mairs & Power Growth FundBuy180,353993,408$65,157,644
Q4 2022Cantillon Capital ManagementBuy399,5702,956,214$193,898,076
Q3 2022Renaissance Technologies LLCBuy6,68063,870$5,302
Q3 2022Mairs & Power Growth FundBuy76,402813,055$67,500
Q3 2022Cantillon Capital ManagementBuy472,9222,556,644$212,253
Q2 2022Torray FundSell-81528,867$2,660
Q2 2022ARK InvestSell-621,308$145
Q2 2022Renaissance Technologies LLCSell-39,66057,190$5,269
Q2 2022Mairs & Power Growth FundBuy204,733736,653$67,868
Q2 2022Cantillon Capital ManagementSell-1,9292,083,722$191,974
Q1 2022Torray FundSell-1,64829,682$3,896
Q1 2022ARK InvestBuy1,3701,370$180
Q1 2022Mairs & Power Growth FundBuy310,340531,920$69,820
Q1 2022Cantillon Capital ManagementBuy56,3912,085,651$273,763
Q4 2021Torray FundBuy31,33031,330$4,342
Q4 2021Mairs & Power Growth FundBuy221,580221,580$30,707
Q4 2021Cantillon Capital ManagementSell-152,3132,029,260$281,215
Q3 2021Cantillon Capital ManagementSell-32,3222,181,573$274,660
Q2 2021Cantillon Capital ManagementSell-23,5532,213,895$272,243
Q1 2021Cantillon Capital ManagementSell-372,3522,237,448$250,146
Q4 2020Cantillon Capital ManagementSell-12,9122,609,800$250,802
Q3 2020Renaissance Technologies LLCBuy72,56096,850$7,200

Frequently asked questions about ENTG activity

  • Which institutional owners are buying ENTG?

    Institutional owners buying ENTG 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 ENTG activity?

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

  • Is institutional interest in ENTG increasing?

    Institutional interest in ENTG 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.