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
Q3 2020Cantillon Capital ManagementSell-38,1932,622,712$194,972
Q2 2020Renaissance Technologies LLCSell-317,20024,290$1,434
Q2 2020Cantillon Capital ManagementBuy17,5432,660,905$157,127
Q1 2020Cantillon Capital ManagementSell-7,7392,643,362$118,343
Q4 2019First Eagle U.S. ValueBuy21,800341,300$17,096
Q4 2019Cantillon Capital ManagementBuy510,4232,651,101$132,793
Q3 2019First Eagle U.S. ValueBuy319,500319,500$15,036
Q3 2019Cantillon Capital ManagementBuy2,140,6782,140,678$100,740
Q2 2019Renaissance Technologies LLCSell-93,398341,490$12,744
Q1 2019Renaissance Technologies LLCSell-822,810434,888$15,521
Q4 2018Renaissance Technologies LLCSell-397,9021,257,698$35,083
Q3 2018Renaissance Technologies LLCSell-270,6901,655,600$47,930
Q1 2018Renaissance Technologies LLCBuy166,8351,926,290$67,035
Q4 2017Renaissance Technologies LLCBuy41,3651,759,455$53,575
Q3 2017Renaissance Technologies LLCBuy379,1001,718,090$49,567
Q2 2017Renaissance Technologies LLCBuy409,2001,338,990$29,391
Q1 2017Renaissance Technologies LLCSell-93,600929,790$21,757
Q4 2016Renaissance Technologies LLCBuy358,7001,023,390$18,319
Q3 2016Renaissance Technologies LLCBuy442,790664,690$11,579
Q2 2016Renaissance Technologies LLCBuy72,210221,900$3,211
Q1 2016Renaissance Technologies LLCBuy149,690149,690$2,039
Q3 2015Olstein Capital ManagementSell-270,000196,000$2,585
Q2 2015Olstein Capital ManagementSell-27,000466,000$6,790
Q1 2015Olstein Capital ManagementSell-10,000493,000$6,749
Q4 2014Olstein Capital ManagementBuy31,000503,000$6,645
Q3 2014Olstein Capital ManagementSell-67,000472,000$5,428
Q2 2014Olstein Capital ManagementSell-78,600539,000$7,409
Q1 2014Olstein Capital ManagementSell-55,400617,600$7,479
Q4 2013Olstein Capital ManagementSell-65,000673,000$7,800
Q3 2013Olstein Capital ManagementBuy28,000738,000$7,498

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.