BIOMARIN PHARMACEUTICAL INC (BMRN) Stock Institutional Trading Activity


BIOMARIN PHARMACEUTICAL INC (BMRN) 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 Viking Global Investors, Renaissance Technologies LLC, Dodge & Cox Stock Fund, Sequoia Financial Advisors, 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
Q4 2023Third PointBuy385,000385,000$37,121,700
Q4 2023Parnassus Endeavor FundSell-489,1811,849,348$178,314,134
Q4 2023Viking Global InvestorsBuy673,9984,889,454$471,441,155
Q4 2023Torray FundBuy44614,668$1,414,289
Q3 2023Dodge & Cox Stock FundSell-136,80014,153,503$1,252,301,945
Q3 2023Renaissance Technologies LLCSell-150,867581,771$51,475
Q3 2023Viking Global InvestorsBuy58,6714,215,456$372,983,547
Q3 2023Torray FundBuy3,24114,222$1,258,363
Q2 2023Dodge & Cox Stock FundSell-39,01014,290,303$1,238,683,464
Q2 2023Renaissance Technologies LLCSell-48,433732,638$63,505
Q2 2023Viking Global InvestorsBuy1,988,1684,156,785$360,310,124
Q2 2023Torray FundBuy10410,981$951,833
Q1 2023Dodge & Cox Stock FundSell-54,35014,329,313$1,393,382,396
Q1 2023Renaissance Technologies LLCBuy150,800781,071$75,951
Q1 2023Viking Global InvestorsSell-3,105,0032,168,617$210,876,317
Q1 2023Torray FundBuy4310,877$1,057,679
Q4 2022Dodge & Cox Stock FundSell-390,30014,383,663$1,488,565,284
Q4 2022Renaissance Technologies LLCSell-114,200630,271$65,227
Q4 2022Parnassus Endeavor FundSell-227,5512,338,529$242,014,366
Q4 2022Viking Global InvestorsBuy174,4565,273,620$545,766,934
Q4 2022Torray FundSell-46610,834$1,121,211
Q3 2022Dodge & Cox Stock FundSell-233,10014,773,963$1,252,389
Q3 2022Renaissance Technologies LLCBuy9,708744,471$63,109
Q3 2022Parnassus Endeavor FundSell-215,3402,566,080$217,527
Q3 2022Viking Global InvestorsBuy46,5715,099,164$432,256
Q3 2022Torray FundSell-26911,300$958
Q2 2022ARK InvestSell-1062,228$167
Q2 2022Dodge & Cox Stock FundSell-27,93615,007,063$1,243,635
Q2 2022Renaissance Technologies LLCBuy243,592734,763$60,890
Q2 2022Parnassus Endeavor FundBuy55,4902,781,420$230,496

Frequently asked questions about BMRN activity

  • Which institutional owners are buying BMRN?

    Institutional owners buying BMRN 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 BMRN activity?

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

  • Is institutional interest in BMRN increasing?

    Institutional interest in BMRN 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.