GRAIL Ownership | Who Owns GRAIL?


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GRAIL Ownership Summary


GRAIL is owned by 94.29% institutional investors, 5.02% insiders, and 0.69% retail investors. Farallon capital management is the largest institutional shareholder, holding 10.24% of GRAL shares. PRIMECAP Odyssey Aggressive Growth is the top mutual fund, with 3.68% of its assets in GRAIL shares.

GRAL Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockGRAIL94.29%5.02%0.69%
SectorHealthcare Stocks 244.59%12.11%-156.70%
IndustryDiagnostics & Research Stocks86.12%9.74%4.14%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Farallon capital management4.16M10.24%$284.11M
Baker bros. advisors lp4.03M9.91%$275.03M
Blackrock funding, inc. /de3.58M8.80%$244.21M
State street2.39M5.87%$162.86M
Vanguard group1.98M5.48%$169.54M
Primecap management co/ca/2.18M5.36%$148.84M
Sessa capital im2.04M5.01%$139.10M
Deep track capital, lp1.83M4.51%$125.27M
Vanguard capital management1.64M4.04%$112.04M
Morgan stanley1.46M3.60%$99.82M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Arbiter partners capital management1.03M37.18%$70.61M
One fin capital management lp380.00K7.39%$22.47M
Wim investment management106.40K2.38%$7.26M
Kingdon capital management340.00K2.38%$23.21M
Sessa capital im2.04M2.33%$139.10M
Deep track capital, lp1.83M1.82%$125.27M
Slow capital217.26K1.73%$14.83M
Casdin capital480.00K1.64%$32.77M
Baker bros. advisors lp4.03M1.38%$275.03M
Farallon capital management4.16M1.31%$284.11M

Top Buyers

HolderShares% AssetsChange
Farallon capital management4.16M1.31%907.90K
Jefferies financial group657.50K0.23%657.50K
Blackrock funding, inc. /de3.58M0.00%608.54K
State street2.39M0.00%493.62K
Kingdon capital management340.00K2.38%340.00K

Top Sellers

HolderShares% AssetsChange
Crcm lp---1.07M
Wealthquest---714.46K
Alyeska investment group105.00K0.02%-540.46K
Ra capital management---428.27K
Capstone investment advisors---369.80K

New Positions

HolderShares% AssetsChangeValue
Jefferies financial group657.50K0.23%657.50K$33.98M
Kingdon capital management340.00K2.38%340.00K$23.21M
Sixth street partners management company300.63K0.00%300.63K$20.52M
Macquarie management85.09K0.01%85.09K$5.81M
Nordea investment management ab35.09K0.00%35.09K$2.35M

Sold Out

HolderChange
Private trust co na-1.00
Global trust asset management-1.00
Hollencrest capital management-1.00
Hhm wealth advisors-1.00
Eagle bay advisors-1.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20263880.78%38,319,2698.93%941.03%17924.31%100-15.97%
Mar 31, 2026375-14.58%34,189,86213.96%831.22%139-42.08%11616.00%
Dec 31, 2025154-57.69%4,153,352-83.27%110.23%77-44.20%35-69.03%
Sep 30, 2025157-56.75%4,532,304-82.73%120.23%49-72.93%46-40.26%
Jun 30, 202535712.26%26,085,8255.46%741.43%17727.34%78-4.88%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
PRIMECAP Odyssey Aggressive Growth1.58M3.68%269.60K
State Street® SPDR® S&P® Biotech ETF1.40M3.13%3.22K
Vanguard Total Stock Mkt Idx Inv1.23M2.86%65.73K
Vanguard Morn Total Stk Mkt Idx Investor1.23M2.86%65.73K
Vanguard MStar Total Stk Mkt Idx Invest1.23M2.76%4.82K
iShares Russell 2000 ETF1.05M2.36%-18.72K
iShares Russell 2000 Value ETF383.46K0.86%-
Vanguard Institutional Extnd Mkt Idx Tr374.94K0.84%646.00
Fidelity Small Cap Index350.61K0.82%2.81K
iShares Biotechnology ETF290.76K0.65%-885.00

Recent Insider Transactions


DateNameRoleActivityValue
Aug 27, 2026Ofman Joshua J. Chief Executive OfficerSell$425.10K
Aug 27, 2026Freidin Aaron Chief Financial OfficerSell$671.58K
Jun 04, 2026Partridge Andrew John Chief Growth OfficerSell$91.07K
Apr 08, 2026Freidin Aaron Chief Financial OfficerSell$2.29M
Apr 08, 2026RAGUSA ROBERT P Chief Executive OfficerSell$6.16M

Insider Transactions Trends


DateBuySell
2026 Q3--
2026 Q2-4
2026 Q1-15
2025 Q4-13
2025 Q3-6

GRAL Ownership FAQ


Who Owns GRAIL?

GRAIL shareholders are primarily institutional investors at 94.29%, followed by 5.02% insiders and 0.69% retail investors. The average institutional ownership in GRAIL's industry, Diagnostics & Research Stocks, is 86.12%, which GRAIL exceeds.

Who owns the most shares of GRAIL?

GRAIL’s largest shareholders are Farallon capital management (4.16M shares, 10.24%), Baker bros. advisors lp (4.03M shares, 9.91%), and Blackrock funding, inc. /de (3.58M shares, 8.80%). Together, they hold 28.95% of GRAIL’s total shares outstanding.

Does Blackrock own GRAIL?

BlackRock is not among the top 10 institutional shareholders of GRAIL.

Who is GRAIL’s biggest shareholder by percentage of total assets invested?

Arbiter partners capital management is GRAIL’s biggest shareholder by percentage of total assets invested, with 37.18% of its assets in 1.03M GRAIL shares, valued at 70.61M$.

Who is the top mutual fund holder of GRAIL shares?

PRIMECAP Odyssey Aggressive Growth is the top mutual fund holder of GRAIL shares, with 3.68% of its total shares outstanding invested in 1.58M GRAIL shares.

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