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89bio Ownership | Who Owns 89bio?

OverviewForecastRevenueFinancialsChart

89bio Ownership Summary

89bio is owned by 102.08% institutional investors, 0.54% insiders. Janus henderson group is the largest institutional shareholder, holding 15.42% of ETNB shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.17% of its assets in 89bio shares.

ETNB Ownership Benchmark

TypeName% Inst% Insiders% Retail
Stock89bio102.08%0.54%-2.62%
SectorHealthcare Stocks 488.17%11.08%-399.26%
IndustryBiotech Stocks 306.59%11.10%-217.69%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Janus henderson group16.51M15.42%$129.18M
Ra capital management19.89M12.60%$195.32M
Suvretta capital management14.21M9.00%$139.54M
Blackrock7.02M7.03%$56.19M
Blackrock funding, inc. /de10.57M6.69%$103.79M
Deep track capital, lp9.50M6.02%$93.29M
Vanguard group5.69M5.32%$44.51M
Avoro capital advisors6.75M4.28%$66.28M
State street2.95M2.75%$23.03M
Pictet asset management sa4.04M2.56%$39.63M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
University of wisconsin foundation1.15M12.67%$11.33M
Suvretta capital management14.21M4.21%$139.54M
Silverarc capital management2.04M3.69%$20.00M
Ra capital management19.89M3.29%$195.32M
Deep track capital, lp9.50M2.99%$93.29M
Superstring capital management lp212.38K2.47%$2.09M
Orchard capital management198.12K2.15%$1.95M
Redmile group1.55M1.61%$15.17M
Exome asset management233.43K1.45%$2.29M
Adar1 capital management875.98K1.32%$8.60M

Top Buyers

HolderShares% AssetsChange
Holocene advisors, lp3.07M0.07%3.07M
Point72 asset management2.27M0.04%2.27M
Adage capital partners gp1.97M0.03%1.97M
Assenagon asset management2.17M0.03%1.74M
Janus henderson group16.51M0.07%1.36M

Top Sellers

HolderShares% AssetsChange
Bvf inc/il---4.33M
Logos global management lp---2.50M
Beck bode---1.82M
Frazier life sciences management---1.00M
Exoduspoint capital management, lp---871.40K

New Positions

HolderShares% AssetsChangeValue
Holocene advisors, lp3.07M0.07%3.07M$30.10M
Point72 asset management2.27M0.04%2.27M$22.33M
Bnp paribas arbitrage, snc351.33K0.00%351.33K$2.75M
Dimensional fund advisors lp342.23K0.00%342.23K$2.68M
Jennison associates234.19K0.00%234.19K$2.30M

Sold Out

HolderChange
Lindbrook capital-5.00
Nelson, van denburg & campbell wealth management group-12.00
Parallel advisors-25.00
Riggs asset managment-31.00
Coldstream capital management-45.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2025198-0.50%161,166,1854.43%1020.92%109-23.78%5754.05%
Mar 31, 202525-84.57%46,598,870-61.57%310.25%19-81.37%4-89.19%
Dec 31, 20241606.67%120,266,53715.09%1121.18%10120.24%38-2.56%
Sep 30, 2024150-104,499,4301.78%970.92%84-1.18%39-7.14%
Jun 30, 2024150-6.25%102,669,4105.08%1020.99%85-9.57%42-16.00%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv4.70M3.17%-104.88K
iShares Russell 2000 ETF2.94M2.01%-55.76K
Janus Henderson Global Life Sciences2.92M2.00%-50.20K
Janus Henderson Global Life Sciences D2.92M1.97%-28.64K
Pictet Biotech2.04M1.94%2.04M
Vanguard US Total Market Shares ETF2.65M1.81%-
Polar Capital Biotech S Inc2.48M1.67%-
Janus Global Life Science AUSD2.41M1.65%-4.33K
Janus Henderson US SMID Cap Growth MA2.35M1.61%2.35M
Janus Henderson US SMID Cap Growth2.35M1.61%-27.66K

Recent Insider Transactions

DateNameRoleActivityValue
Jul 15, 2025Le-Nguyen Quoc See RemarksSell$115.28K
Apr 15, 2025Le-Nguyen Quoc See RemarksSell$91.21K
Jan 30, 2025RA CAPITAL MANAGEMENT, L.P. Buy$50.00M
Jan 22, 2025McWherter Charles-Buy$67.10K
Jan 21, 2025McWherter Charles-Buy$32.75K

Insider Transactions Trends

DateBuySell
2025 Q3-1
2025 Q2-1
2025 Q131
2024 Q441
2024 Q3--

ETNB Ownership FAQ

Who Owns 89bio?

89bio shareholders are primarily institutional investors at 102.08%, followed by 0.54% insiders and -2.62% retail investors. The average institutional ownership in 89bio's industry, Biotech Stocks , is 306.59%, which 89bio falls below.

Who owns the most shares of 89bio?

89bio’s largest shareholders are Janus henderson group (16.51M shares, 15.42%), Ra capital management (19.89M shares, 12.60%), and Suvretta capital management (14.21M shares, 9.00%). Together, they hold 37.02% of 89bio’s total shares outstanding.

Does Blackrock own 89bio?

Yes, BlackRock owns 7.03% of 89bio, totaling 7.02M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 56.19M$. In the last quarter, BlackRock increased its holdings by 377.59K shares, a 5.69% change.

Who is 89bio’s biggest shareholder by percentage of total assets invested?

University of wisconsin foundation is 89bio’s biggest shareholder by percentage of total assets invested, with 12.67% of its assets in 1.15M 89bio shares, valued at 11.33M$.

Who is the top mutual fund holder of 89bio shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of 89bio shares, with 3.17% of its total shares outstanding invested in 4.7M 89bio shares.

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