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IO Biotech Ownership | Who Owns IO Biotech?

OverviewForecastFinancialsChart

IO Biotech Ownership Summary

IO Biotech is owned by 27.60% institutional investors, 0.36% insiders, and 72.04% retail investors. Vivo capital is the largest institutional shareholder, holding 9.37% of IOBT shares. HBM Healthcare Investments AG Ord is the top mutual fund, with 5.99% of its assets in IO Biotech shares.

IOBT Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockIO Biotech27.60%0.36%72.04%
SectorHealthcare Stocks 488.17%11.08%-399.26%
IndustryBiotech Stocks 307.00%11.11%-218.12%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vivo capital6.17M9.37%$8.58M
Novo3.35M5.09%$4.66M
Marshall wace, llp2.11M3.20%$2.93M
Morgan stanley1.97M2.99%$2.31M
Pfm health sciences, lp1.97M2.99%$2.74M
Bank of america corp /de/1.65M2.51%$1.93M
Alyeska investment group987.65K1.50%$1.16M
Pivotal bioventure partners investment advisor864.20K1.31%$1.20M
Landscape capital management442.20K0.67%$406.82K
Soleus capital management192.67K0.29%$267.81K

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Vivo capital6.17M0.88%$8.58M
Pivotal bioventure partners investment advisor864.20K0.74%$1.20M
Novo3.35M0.33%$4.66M
Pfm health sciences, lp1.97M0.24%$2.74M
Sectoral asset management117.69K0.11%$163.59K
Landscape capital management442.20K0.04%$406.82K
Soleus capital management192.67K0.02%$267.81K
Alyeska investment group987.65K0.01%$1.16M
Bridgeway capital management174.00K0.00%$160.08K
Marshall wace, llp2.11M0.00%$2.93M

Top Buyers

HolderShares% AssetsChange
Landscape capital management442.20K0.04%442.20K
Royal bank of canada60.00K-60.00K
Citadel advisors86.89K-28.27K
Newedge advisors24.22K0.00%24.22K
Jane street group23.72K-23.72K

Top Sellers

HolderShares% AssetsChange
Samsara biocapital---3.64M
Armistice capital---1.54M
Logos global management lp---493.83K
Pfm health sciences, lp1.97M0.24%-369.03K
Fmr---314.60K

New Positions

HolderShares% AssetsChangeValue
Landscape capital management442.20K0.04%442.20K$406.82K
Royal bank of canada60.00K-60.00K$55.00K
Newedge advisors24.22K0.00%24.22K$33.66K
Jane street group23.72K-23.72K$25.85K
Raymond james financial1.00K-1.00K$1.39K

Sold Out

HolderChange
Citigroup-5.00
Advisor group-230.00
Redwood wealth management group-4.17K
Hrt financial lp-12.69K
Virtu financial-17.95K

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20252623.81%18,182,707-4.64%273.29%11175.00%8-
Mar 31, 20251-96.15%23,717-99.88%-0.00%1-92.31%--100.00%
Dec 31, 202412-36.84%9,874,693-58.14%141.17%7-12.50%--100.00%
Sep 30, 202418-10.00%23,573,928-9.96%352.27%716.67%2-50.00%
Jun 30, 20242011.11%26,183,049-4.24%391.01%620.00%4-20.00%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
HBM Healthcare Investments AG Ord3.94M5.99%-
MEDICAL BioHealth EUR Acc679.10K1.03%7.40K
Fidelity Select Biotechnology314.60K0.48%-
Protea Sectoral Biotech Opps IF USD Acc91.44K0.14%-
Bridgeway Ultra-Small Company Market75.00K0.11%-
Fidelity Nasdaq Composite Index33.31K0.05%-

Recent Insider Transactions

DateNameRoleActivityValue
May 30, 2025Hunter Heidi-Buy$20.88K
Dec 23, 2024Ahmad Qasim Iftikhar Chief Medical OfficerBuy$26.55K
Dec 23, 2024Zocca Mai-Britt Chief Executive OfficerBuy$10.12K
Dec 23, 2024Sullivan Amy Chief Financial OfficerBuy$8.48K
Dec 23, 2024Smith Devin Whittemore General CounselBuy$9.72K

Insider Transactions Trends

DateBuySell
2025 Q21-
2024 Q44-
2024 Q3-2
2024 Q2-1
2024 Q1-1

IOBT Ownership FAQ

Who Owns IO Biotech?

IO Biotech shareholders are primarily institutional investors at 27.60%, followed by 0.36% insiders and 72.04% retail investors. The average institutional ownership in IO Biotech's industry, Biotech Stocks , is 307.00%, which IO Biotech falls below.

Who owns the most shares of IO Biotech?

IO Biotech’s largest shareholders are Vivo capital (6.17M shares, 9.37%), Novo (3.35M shares, 5.09%), and Marshall wace, llp (2.11M shares, 3.20%). Together, they hold 17.66% of IO Biotech’s total shares outstanding.

Does Blackrock own IO Biotech?

BlackRock is not among the top 10 institutional shareholders of IO Biotech.

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

Vivo capital is IO Biotech’s biggest shareholder by percentage of total assets invested, with 0.88% of its assets in 6.17M IO Biotech shares, valued at 8.58M$.

Who is the top mutual fund holder of IO Biotech shares?

HBM Healthcare Investments AG Ord is the top mutual fund holder of IO Biotech shares, with 5.99% of its total shares outstanding invested in 3.94M IO Biotech shares.

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