REGENERON PHARMACEUTICALS (REGN) Institutional Ownership Changes & 13F Activity

REGENERON PHARMACEUTICALS (REGN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Dodge & Cox Stock Fund, Renaissance Technologies LLC, Longleaf Partners, Sound Shore Management, and Parnassus Endeavor Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2021Hancock Classic ValueSell-73904$571
Q4 2021Sequoia Financial AdvisorsSell-18402$254
Q3 2021Polen Capital ManagementSell-2,000,6492,155$1,304
Q3 2021ARK InvestSell-284,901428,147$259,106
Q3 2021Renaissance Technologies LLCBuy36,110101,262$61,282
Q3 2021Hancock Classic ValueSell-137977$591
Q2 2021ARK InvestSell-505,922713,048$398,266
Q2 2021Hancock Classic ValueSell-1411,114$622
Q1 2021Renaissance Technologies LLCSell-839,80065,152$30,826
Q1 2021ARK InvestBuy767,1521,218,970$576,743
Q1 2021Hancock Classic ValueBuy1,2551,255$594
Q4 2020ARK InvestBuy451,729451,818$218,278
Q4 2020Renaissance Technologies LLCSell-167,410904,952$437,191
Q4 2020Polen Capital ManagementBuy65,1472,002,804$967,575
Q4 2020Sequoia Financial AdvisorsSell-37420$203
Q3 2020Renaissance Technologies LLCBuy182,2621,072,362$600,287
Q3 2020Polen Capital ManagementBuy93,1231,937,657$1,084,662
Q3 2020Sequoia Financial AdvisorsBuy457457$256
Q2 2020Renaissance Technologies LLCBuy402,738890,100$555,111
Q2 2020Polen Capital ManagementBuy123,5321,844,534$1,150,343
Q2 2020Sequoia Financial AdvisorsSell-5190$347
Q1 2020Renaissance Technologies LLCBuy198,962487,362$237,974
Q1 2020Polen Capital ManagementBuy44,7081,721,002$840,348
Q1 2020Sequoia Financial AdvisorsSell-40519$253
Q4 2019Parnassus Endeavor FundSell-480,000145,000$54,445
Q4 2019Renaissance Technologies LLCSell-110,418288,400$108,288
Q4 2019ARK InvestSell-39,98489$33
Q4 2019Polen Capital ManagementBuy34,0841,676,294$629,415
Q3 2019Renaissance Technologies LLCBuy60,856398,818$110,632
Q3 2019Polen Capital ManagementBuy57,0971,642,210$455,549

Frequently asked questions about REGN activity

  • Which institutional owners are buying REGN?

    Institutional owners buying REGN 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 REGN activity?

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

  • Is institutional interest in REGN increasing?

    Institutional interest in REGN 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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