ATEA PHARMACEUTICALS INC (AVIR) Institutional Ownership Changes & 13F Activity

ATEA PHARMACEUTICALS INC (AVIR) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC and Viking Global Investors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-22,1001,166,400$6,275,232
Q4 2025Renaissance Technologies LLCSell-39,4001,188,500$4,242,945
Q3 2025Renaissance Technologies LLCSell-6,2001,227,900$3,560,910
Q2 2025Renaissance Technologies LLCSell-44,3001,234,100$4,442,760
Q1 2025Renaissance Technologies LLCBuy61,8001,278,400$3,822,416
Q4 2024Renaissance Technologies LLCBuy9,5001,216,600$4,075,610
Q3 2024Renaissance Technologies LLCBuy65,6001,207,100$4,043,785
Q2 2024Renaissance Technologies LLCBuy18,1001,141,500$3,778,365
Q1 2024Renaissance Technologies LLCSell-372,9031,123,400$4,539
Q4 2023Renaissance Technologies LLCBuy141,7621,496,303$4,564
Q3 2023Renaissance Technologies LLCSell-8,8411,354,541$4,064
Q2 2023Renaissance Technologies LLCBuy635,6821,363,382$5,099
Q1 2023Renaissance Technologies LLCBuy107,100727,700$2,438
Q4 2022Renaissance Technologies LLCBuy23,200620,600$2,985
Q3 2022Renaissance Technologies LLCSell-65,600597,400$3,399
Q2 2022Renaissance Technologies LLCSell-502,000663,000$4,707
Q1 2022Renaissance Technologies LLCBuy544,2001,165,000$8,411
Q4 2021Renaissance Technologies LLCBuy598,200620,800$5,550
Q3 2021Viking Global InvestorsBuy1,655,0871,655,087$58,027
Q3 2021Renaissance Technologies LLCBuy22,60022,600$792

Frequently asked questions about AVIR activity

  • Which institutional owners are buying AVIR?

    Institutional owners buying AVIR 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 AVIR activity?

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

  • Is institutional interest in AVIR increasing?

    Institutional interest in AVIR 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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