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
Q2 2022Viking Global InvestorsBuy1,300,2005,052,593$418,708
Q2 2022Torray FundSell-66811,569$959
Q1 2022ARK InvestBuy1,3742,334$180
Q1 2022Dodge & Cox Stock FundBuy209,95015,034,999$1,159,198
Q1 2022Renaissance Technologies LLCSell-159,889491,171$37,869
Q1 2022Viking Global InvestorsBuy882,4463,752,393$289,310
Q4 2021Torray FundSell-4,16612,237$1,081
Q4 2021Dodge & Cox Stock FundBuy6,46714,825,049$1,309,793
Q4 2021Parnassus Endeavor FundBuy41,0562,725,930$240,836
Q4 2021Renaissance Technologies LLCBuy269,589651,060$57,521
Q4 2021Viking Global InvestorsBuy1,416,3222,869,947$253,560
Q3 2021Torray FundBuy20416,403$1,268
Q3 2021Dodge & Cox Stock FundBuy716,48514,818,582$1,145,328
Q3 2021Renaissance Technologies LLCBuy91,500381,471$29,484
Q2 2021Torray FundBuy14216,199$1,352
Q2 2021Dodge & Cox Stock FundBuy2,247,78914,102,097$1,176,679
Q2 2021Renaissance Technologies LLCSell-75,600289,971$24,195
Q1 2021Torray FundSell-50,07016,057$1,212
Q1 2021Dodge & Cox Stock FundBuy2,057,38411,854,308$895,119
Q1 2021Parnassus Endeavor FundBuy1,165,9232,684,874$202,735
Q1 2021Renaissance Technologies LLCBuy346,471365,571$27,604
Q4 2020Torray FundSell-2,26366,127$5,799
Q4 2020Dodge & Cox Stock FundBuy2,076,7019,796,924$859,092
Q4 2020Parnassus Endeavor FundBuy1,331,8821,518,951$133,197
Q3 2020Torray FundBuy14,32068,390$5,203
Q3 2020Dodge & Cox Stock FundBuy4,104,4837,720,223$587,355
Q3 2020Parnassus Endeavor FundBuy97,349187,069$14,232
Q2 2020Torray FundSell-6,47254,070$6,669
Q2 2020Dodge & Cox Stock FundSell-326,7683,615,740$445,965
Q2 2020Parnassus Endeavor FundBuy89,72089,720$11,066

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.