GRAIL INC (GRAL) Institutional Ownership Changes & 13F Activity

GRAIL INC (GRAL) 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, Arbiter Partners Capital Management, and Polen Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-30,10055,200$2,852,736
Q1 2026Arbiter Partners Capital ManagementSell-1,0001,034,597$53,467,973
Q4 2025Renaissance Technologies LLCSell-17,80085,300$7,300,827
Q4 2025Polen Capital ManagementSell-3,14713,526$1,157,690
Q4 2025Arbiter Partners Capital ManagementSell-3001,035,597$88,636,747
Q3 2025Renaissance Technologies LLCSell-50,400103,100$6,096,303
Q3 2025Polen Capital ManagementSell-5,26516,673$985,874
Q3 2025Arbiter Partners Capital ManagementSell-2,0011,035,897$61,252,590
Q2 2025Renaissance Technologies LLCBuy92,696153,500$7,892,970
Q2 2025Polen Capital ManagementBuy21,93821,938$1,128,052
Q2 2025Arbiter Partners Capital ManagementBuy12,8561,037,898$53,368,715
Q1 2025Arbiter Partners Capital ManagementBuy194,4001,025,042$26,179,573
Q4 2024Arbiter Partners Capital ManagementBuy561,534830,642$14,826,959
Q3 2024Arbiter Partners Capital ManagementBuy129,108269,108$3,702,926
Q2 2024Arbiter Partners Capital ManagementBuy140,000140,000$2,151,800
Q2 2024Renaissance Technologies LLCBuy60,80460,804$934,557

Frequently asked questions about GRAL activity

  • Which institutional owners are buying GRAL?

    Institutional owners buying GRAL 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 GRAL activity?

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

  • Is institutional interest in GRAL increasing?

    Institutional interest in GRAL 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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