GRAIL INC (GRAL): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in GRAL · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
16
13F filers
Aggregate Value
$760.5M
Across holders
Last Price
$76.58
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity8 increased7 reduced3 exited
Full exits: CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC, TUDOR INVESTMENT CORP ET AL
Institutional Holders of GRAL
16 holders
ManagerTypeSharesMarket Value% of Total% of PortfolioActionQoQ ChangeQuarter
FARALLON CAPITAL MANAGEMENT LLC
CIK 0000909661
Hedge Fund4.16M$284.1M37.4%1.3%Added+$62.0MQ2 2026
BAKER BROS. ADVISORS LP
CIK 0001263508
Hedge Fund4.03M$275.0M36.2%1.4%Unchanged+$0Q2 2026
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
Institutional Manager2.18M$148.8M19.6%0.1%Added+$23.0MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund211K$14.2M1.9%0.0%Reduced+$13.5MQ2 2026
TCW GROUP INC
CIK 0000850401
Hedge Fund192K$13.1M1.7%0.1%Added+$41KQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund116K$7.9M1.0%0.0%Added+$3.2MQ2 2026
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager67K$4.6M0.6%0.0%Reduced$-3KQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund58K$3.9M0.5%0.0%Reduced$-11.6MQ2 2026
Verition Fund Management LLC
CIK 0001454027
Hedge Fund49K$3.3M0.4%0.0%AddedQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund27K$1.9M0.2%0.0%Reduced$-2.5MQ2 2026
FARALLON CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$284.1M· 37.4% of total· 1.3% port· 4.16M sh· +$62.0M QoQ· Q2 2026
BAKER BROS. ADVISORS LPUnchanged
Hedge Fund
$275.0M· 36.2% of total· 1.4% port· 4.03M sh· +$0 QoQ· Q2 2026
PRIMECAP MANAGEMENT CO/CA/Added
Institutional Manager
$148.8M· 19.6% of total· 0.1% port· 2.18M sh· +$23.0M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$14.2M· 1.9% of total· 0.0% port· 211K sh· +$13.5M QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$13.1M· 1.7% of total· 0.1% port· 192K sh· +$41K QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$7.9M· 1.0% of total· 0.0% port· 116K sh· +$3.2M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$4.6M· 0.6% of total· 0.0% port· 67K sh· $-3K QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$3.9M· 0.5% of total· 0.0% port· 58K sh· $-11.6M QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$3.3M· 0.4% of total· 0.0% port· 49K sh· QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$1.9M· 0.2% of total· 0.0% port· 27K sh· $-2.5M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$1.6M· 0.2% of total· 0.0% port· 24K sh· +$270K QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$628K· 0.1% of total· 0.0% port· 9K sh· $-3.1M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$523K· 0.1% of total· 0.0% port· 8K sh· $-2.4M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$423K· 0.1% of total· 0.0% port· 6K sh· $-3.7M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$368K· 0.0% of total· 0.0% port· 5K sh· QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$90K· 0.0% of total· 0.0% port· 1K sh· +$49K QoQ· Q2 2026
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