IO Biotech, Inc.
IOBTDelisted Jun 8, 2026- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001865494
IO Biotech, Inc. was delisted on Jun 8, 2026; its insiders filed their last Form 4 on Jun 6, 2025; 12 institutions reported holding it in 13F filings for Q1 2026, worth $199.0K in total; no superinvestor held it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by IO Biotech, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for IO Biotech, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Smith David V | Director | – | Jun 6, 2025 | 0 |
| Glaub Kathleen Sereda | Director | – | Jun 6, 2025 | 0 |
| Collins Helen Louise | Director | – | Jun 6, 2025 | 0 |
| Hirth Peter | Director | – | Jun 6, 2025 | 0 |
| Elling Christian E | Director | 13,950,686Indirect | Jun 6, 2025 | 0 |
| Hunter Heidi | Director | 15,000 | Jun 6, 2025 | 0 |
| Smith Devin Whittemore | General Counsel | 16,938 | Apr 4, 2025 | 0 |
| Burkavage Brian | Chief Accounting Officer | 11,500 | Apr 4, 2025 | 0 |
| Sullivan Amy | Chief Financial Officer | 84,632 | Apr 4, 2025 | 0 |
| Zocca Mai-Britt | Chief Executive Officer | 49,891 | Apr 4, 2025 | 0 |
| Ahmad Qasim Iftikhar | Chief Medical Officer | 31,350 | Apr 4, 2025 | 0 |
| Novo Holdings A/S | 10% Owner | 4,354,449 | Jul 26, 2024 | 0 |
| Lundbeckfond Invest A/S | Director, 10% Owner | 13,950,686 | Aug 11, 2023 | 0 |
| Vivo Opportunity, LLC | 10% Owner | 3,157,894Indirect | Aug 10, 2023 | 0 |
| Vivo Capital Fund IX, L.P. | 10% Owner | 3,157,894Indirect | Aug 10, 2023 | 0 |
| Vivo Capital IX, LLC | 10% Owner | 3,157,894Indirect | Aug 10, 2023 | 0 |
| Vivo Opportunity Fund Holdings, L.P. | 10% Owner | 3,157,894Indirect | Aug 10, 2023 | 0 |
| Nielsen Jack | Director | 3,015,545Indirect | Jun 13, 2023 | 0 |
| Ehrnrooth Eva | Chief Medical Officer | – | Mar 22, 2023 | 0 |
| Al-Hajj Muhammad | Chief Scientific Officer | – | Mar 22, 2023 | 0 |
| HBM Healthcare Investments (Cayman) Ltd. | 10% Owner | 2,690,545 | Nov 12, 2021 | 0 |
| Andersson Claus A. | Director | 1,791,490Indirect | Nov 12, 2021 | 0 |
| Malier Vanessa | Director | 430,477Indirect | Nov 12, 2021 | 0 |
| Vendola Keith A. | Chief Financial Officer | – | Nov 8, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 2, 2025 (view filing) | May 30 | 3 days | Hunter HeidiDirector | PPurchase | +15.0K | $1.39 | +$20.9K | New position15.0K after | |
| Dec 26, 2024 (view filing) | Dec 23 | 3 days | Ahmad Qasim IftikharChief Medical Officer | PPurchase | +31.4K | $0.85 | +$26.6K | New position31.4K after | |
| Dec 23, 2024 (view filing) | Dec 23 | Same day | Zocca Mai-BrittChief Executive Officer | PPurchase | +12.5K | $0.81 | +$10.1K | +33.4%49.9K after | |
| Dec 23, 2024 (view filing) | Dec 23 | Same day | Sullivan AmyChief Financial Officer | PPurchase | +10.3K | $0.83 | +$8.51K | +13.8%84.6K after | |
| Dec 23, 2024 (view filing) | Dec 23 | Same day | Smith Devin WhittemoreGeneral Counsel | PPurchase | +12.0K | $0.81 | +$9.72K | +243.0%16.9K after | |
| Jul 26, 2024 (view filing) | Jul 25-26 | 1 day | Novo Holdings A/S10% Owner | SSale | −75.0K | $1.32 | −$99.3K | −1.7%4.35M after | 2 lots |
| May 14, 2024 (view filing) | May 10 | 4 days | Novo Holdings A/S10% Owner | SSale | −658.8K | $1.22 | −$803.7K | −12.9%4.43M after | |
| Feb 13, 2024 (view filing) | Feb 9 | 4 days | Novo Holdings A/S10% Owner | SSale | −658.8K | $1.50 | −$988.2K | −11.5%5.09M after | |
| Nov 24, 2023 (view filing) | Nov 21-22 | 3 days | Burkavage BrianChief Accounting Officer | PPurchase | +10.0K | $1.02 | +$10.2K | +666.7%11.5K after | 2 lots |
| Aug 11, 2023 (view filing) | Aug 9 | 2 days | Novo Holdings A/S10% Owner | PPurchase | +2.47M | $2.03 | +$5.01M | +76.2%5.71M after | |
| Aug 11, 2023 (view filing) | Aug 9 | 2 days | Novo Holdings A/S10% Owner | PPurchase | +2.47M | $2.03 | +$5.01M | –2.47M after | Derivative |
| Aug 10, 2023 (view filing)9:03 AM ET | Aug 9 | 1 day | Vivo Opportunity, LLC and 3 others10% Owner | PPurchase | +3.16M | $1.90 | +$6.00M | New position3.16M after | |
| Aug 10, 2023 (view filing)9:03 AM ET | Aug 9 | 1 day | Vivo Opportunity, LLC and 3 others10% Owner | PPurchase | +3.16M | $0.125 | +$394.7K | –3.16M after | Derivative |
| Mar 20, 2023 (view filing) | Mar 17 | 3 days | Sullivan AmyChief Financial Officer | PPurchase | +25.0K | $2.32 | +$58.0K | New position25.0K after | |
| Nov 12, 2021 (view filing)4:16 PM ET | Nov 9 | 3 days | Vivo Capital Fund IX, L.P. and 1 other10% Owner | PPurchase | +650.0K | $14.00 | +$9.10M | +27.5%3.02M after | Duplicate filing |
| Nov 12, 2021 (view filing) | Nov 9 | 3 days | Andersson Claus A.Director | PPurchase | +75.0K | $14.00 | +$1.05M | +4.4%1.79M after | |
| Nov 12, 2021 (view filing) | Nov 9 | 3 days | Malier VanessaDirector | PPurchase | +325.0K | $14.00 | +$4.55M | +308.1%430.5K after | 2 lots |
| Nov 12, 2021 (view filing) | Nov 9 | 3 days | Lundbeckfond Invest A/S10% Owner | PPurchase | +2.14M | $14.00 | +$30.0M | +54.9%6.05M after | |
| Nov 12, 2021 (view filing) | Nov 9 | 3 days | Nielsen JackDirector | PPurchase | +650.0K | $14.00 | +$9.10M | +27.5%3.02M after | |
| Nov 12, 2021 (view filing) | Nov 9 | 3 days | HBM Healthcare Investments (Cayman) Ltd.10% Owner | PPurchase | +325.0K | $14.00 | +$4.55M | +13.7%2.69M after | |
| Nov 10, 2021 (view filing) | Nov 9 | 1 day | Novo Holdings A/S10% Owner | PPurchase | +325.0K | $14.00 | +$4.55M | +11.0%3.28M after |