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IOBT Insider Trading

Insider Ownership Percentage: 2.30%
Insider Buying (Last 12 Months): $20,850.00
Insider Selling (Last 12 Months): $0.00

IO Biotech Insider Trading History Chart

This chart shows the insider buying and selling history at IO Biotech by year and by quarter.

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IO Biotech Share Price & Price History

Current Price: $0.05
Price Change: +0.30 (1.20%)
As of 04/7/2026 01:00 AM ET

This chart shows the closing price history over time for IOBT up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

IO Biotech Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/30/2025Heidi HunterDirectorBuy15,000$1.39$20,850.0015,000View SEC Filing Icon  
12/23/2024Amy SullivanCFOBuy10,250$0.83$8,507.5084,632View SEC Filing Icon  
12/23/2024Mai-Britt ZoccaCEOBuy12,500$0.81$10,125.0049,891View SEC Filing Icon  
7/25/2024Holdings A/S NovoMajor ShareholderSell51,522$1.33$68,524.264,377,927View SEC Filing Icon  
5/10/2024Holdings A/S NovoMajor ShareholderSell658,809$1.22$803,746.984,429,449View SEC Filing Icon  
2/9/2024Holdings A/S NovoMajor ShareholderSell658,809$1.50$988,213.505,088,258View SEC Filing Icon  
11/21/2023Brian BurkavageCAOBuy5,000$0.99$4,950.006,500View SEC Filing Icon  
8/9/2023Vivo Capital Ix, LlcMajor ShareholderBuy3,157,894$1.90$5,999,998.603,157,894View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for IO Biotech (NASDAQ:IOBT)

54.76% of IO Biotech stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at IOBT by year and by quarter.

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IO Biotech Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/18/2026Beacon Pointe Advisors LLC506,000$0.31M0.0%N/A0.703%Search for SEC Filing on Google Icon
2/18/2026Ikarian Capital LLC1,386,565$0.84M0.1%-9.1%1.927%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC138,716$84K0.0%-90.0%0.193%Search for SEC Filing on Google Icon
2/18/2026Boothbay Fund Management LLC451,852$0.28M0.0%-23.6%0.628%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP429,338$0.26M0.0%-59.2%0.597%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC207,601$0.13M0.0%-62.1%0.289%Search for SEC Filing on Google Icon
11/17/2025Novo Holdings A S2,512,453$0.91M0.1%-25.1%3.814%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC1,392,396$0.51M0.0%N/A2.114%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE799,953$0.29M0.0%-50.5%1.214%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC591,180$0.22M0.0%N/A0.897%Search for SEC Filing on Google Icon
8/19/2025Marex Group plc45,000$63K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE1,615,074$2.25M0.0%-2.2%0.000%Search for SEC Filing on Google Icon
8/14/2025NewEdge Advisors LLC24,217$34K0.0%N/A0.037%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd29,189$41K0.0%-42.2%0.000%Search for SEC Filing on Google Icon
5/21/2025Acadian Asset Management LLC30,858$33K0.0%-49.1%0.047%Search for SEC Filing on Google Icon
5/19/2025Jane Street Group LLC23,717$26K0.0%N/A0.036%Search for SEC Filing on Google Icon
5/15/2025Landscape Capital Management L.L.C.400,234$0.44M0.0%-9.5%0.608%Search for SEC Filing on Google Icon
5/8/2025XTX Topco Ltd50,486$55K0.0%+80.0%0.077%Search for SEC Filing on Google Icon
5/7/2025Dauntless Investment Group LLC681,446$0.74M0.9%-8.9%1.034%Search for SEC Filing on Google Icon
2/17/2025Bridgeway Capital Management LLC174,000$0.16M0.0%-12.8%0.264%Search for SEC Filing on Google Icon
2/17/2025Citadel Advisors LLC270,504$0.25M0.0%N/A0.411%Search for SEC Filing on Google Icon
2/14/2025Dauntless Investment Group LLC747,646$0.69M0.7%N/A1.135%Search for SEC Filing on Google Icon
2/13/2025XTX Topco Ltd28,040$26K0.0%N/A0.043%Search for SEC Filing on Google Icon
2/13/2025Renaissance Technologies LLC118,800$0.11M0.0%+22.5%0.180%Search for SEC Filing on Google Icon
2/12/2025Landscape Capital Management L.L.C.442,196$0.41M0.0%N/A0.671%Search for SEC Filing on Google Icon
1/30/2025Vontobel Holding Ltd.32,667$30K0.0%N/A0.050%Search for SEC Filing on Google Icon
10/24/2024Novo Holdings A S3,354,449$3.52M0.2%-24.3%5.092%Search for SEC Filing on Google Icon
8/20/2024Novo Holdings A S4,429,449$5.18M0.3%-12.9%6.723%Search for SEC Filing on Google Icon
8/15/2024Armistice Capital LLC1,545,000$1.81M0.0%-10.4%2.345%Search for SEC Filing on Google Icon
8/12/2024XTX Topco Ltd26,555$31K0.0%+67.4%0.040%Search for SEC Filing on Google Icon
8/9/2024Renaissance Technologies LLC180,800$0.21M0.0%+8.1%0.274%Search for SEC Filing on Google Icon
2/15/2024PFM Health Sciences LP2,341,107$4.40M0.3%+73.0%3.554%Search for SEC Filing on Google Icon
2/13/2024Stonepine Capital Management LLC1,666,037$3.13M1.4%-15.7%2.529%Search for SEC Filing on Google Icon
2/13/2024Armistice Capital LLC1,924,000$3.62M0.0%-10.4%2.920%Search for SEC Filing on Google Icon
11/15/2023Armistice Capital LLC2,148,000$3.03M0.0%N/A3.260%Search for SEC Filing on Google Icon
11/14/2023Stonepine Capital Management LLC1,975,308$2.79M0.9%N/A2.998%Search for SEC Filing on Google Icon
11/14/2023Pivotal bioVenture Partners Investment Advisor LLC864,197$1.22M0.5%N/A1.312%Search for SEC Filing on Google Icon
11/8/2023Vivo Capital LLC6,173,439$8.71M1.1%+104.7%9.371%Search for SEC Filing on Google Icon
7/25/2023Summit Trail Advisors LLC43,744$86K0.0%N/A0.152%Search for SEC Filing on Google Icon
2/14/2023RA Capital Management L.P.1,127,260$2.59M0.1%-39.3%3.911%Search for SEC Filing on Google Icon
11/14/2022Psagot Value Holdings Ltd. Israel40,846$0.11M0.0%N/A0.142%Search for SEC Filing on Google Icon
11/2/2022Victory Capital Management Inc.43,741$0.12M0.0%N/A0.152%Search for SEC Filing on Google Icon
2/15/2022Samsara BioCapital LLC1,120,437$7.17M1.4%N/A3.888%Search for SEC Filing on Google Icon
2/15/2022Capital World Investors1,235,000$8.11M0.0%N/A4.286%Search for SEC Filing on Google Icon
2/14/2022Soleus Capital Management L.P.672,734$4.31M0.4%N/A2.335%Search for SEC Filing on Google Icon
2/14/2022Novo Holdings A S3,277,932$20.98M1.0%N/A11.376%Search for SEC Filing on Google Icon
Data available starting January 2016

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IO Biotech logo
IO Biotech, Inc., a clinical-stage biopharmaceutical company, develops immune-modulating therapeutic cancer vaccines based on the T-win technology platform. The company's lead product candidate, IO102-IO103, which is designed to target immunosuppressive mechanisms mediated by Indoleamine 2,3-dehydrogenase (IDO), and programmed death-ligand (PD-L1) that is in phase 3 clinical trial to treat melanoma, as well as in phase 2 clinical trial to treat lung, head and neck, bladder, and melanoma cancer. It also develops IO112, a product candidate that contains a single Arginase 1-derived peptide designed to target T cells that recognize epitopes derived from Arginase 1 for the treatment of cancers. The company was incorporated in 2014 and is based in Copenhagen, Denmark.
Read More on IO Biotech

Today's Range

Now: $0.05
Low: $0.05
High: $0.05

50 Day Range

MA: $0.24
Low: $0.03
High: $0.38

52 Week Range

Now: $0.05
Low: $0.03
High: $2.79

Volume

N/A

Average Volume

9,043,608 shs

Market Capitalization

$3.45 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.88

Who are the company insiders with the largest holdings of IO Biotech?

IO Biotech's top insider investors include:
  1. Holdings A/S Novo (Major Shareholder)
  2. Vivo Capital Ix, Llc (Major Shareholder)
  3. Amy Sullivan (CFO)
  4. Mai-Britt Zocca (CEO)
  5. Heidi Hunter (Director)
  6. Brian Burkavage (CAO)
Learn More about top insider investors at IO Biotech.