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.
13F holders, Q4 2021
Institutional positions in IO Biotech, Inc. as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 20
- +20 vs. Q3 2021
- Shares held
- 15.0M
- +15.0M vs. Q3 2021
- Total value
- $92.6M
- +$92.6M vs. Q3 2021
- New holders
- 20
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q3 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IOBT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 12 | $199.0K |
| Q4 2025 | 22 | $4.78M |
| Q3 2025 | 21 | $3.59M |
| Q2 2025 | 26 | $25.3M |
| Q1 2025 | 22 | $20.8M |
| Q4 2024 | 27 | $18.2M |
| Q3 2024 | 20 | $24.8M |
| Q2 2024 | 20 | $30.7M |
| Q1 2024 | 18 | $47.4M |
| Q4 2023 | 18 | $55.3M |
| Q3 2023 | 19 | $41.7M |
| Q2 2023 | 15 | $24.0M |
| Q1 2023 | 17 | $26.1M |
| Q4 2022 | 17 | $32.8M |
| Q3 2022 | 21 | $41.6M |
| Q2 2022 | 18 | $72.2M |
| Q1 2022 | 19 | $76.9M |
| Q4 2021 | 20 | $92.6M |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2021
Shares, value and share of portfolio for each institution holding IO Biotech, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tower Research Capital LLC (TRC) | 1,572 | $10.0K | 0.00% | +1,572 | New |
| Morgan Stanley | 8,958 | $57.0K | 0.00% | +8,958 | New |
| Bank of America Corp | 10,000 | $64.0K | 0.00% | +10,000 | New |
| Stifel Financial Corp | 10,000 | $64.0K | 0.00% | +10,000 | New |
| Geode Capital Management, LLC | 11,173 | $73.0K | 0.00% | +11,173 | New |
| Virtu Financial LLC | 12,665 | $83.0K | 0.01% | +12,665 | New |
| Citadel Advisors LLC | 13,060 | $86.0K | 0.00% | +13,060 | New |
| Squarepoint Ops LLC | 14,966 | $98.0K | 0.00% | +14,966 | New |
| Norges Bank | 25,000 | $164.0K | 0.00% | +25,000 | New |
| Caas Capital Management LP | 50,479 | $323.0K | 0.03% | +50,479 | New |
| Millennium Management LLC | 77,963 | $512.0K | 0.00% | +77,963 | New |
| Vanguard Group Inc | 205,200 | $1.31M | 0.00% | +205,200 | New |
| Soleus Capital Management, L.P. | 672,734 | $4.30M | 0.58% | +672,734 | New |
| Samsara BioCapital, LLC | 1,120,437 | $7.17M | 1.43% | +1,120,437 | New |
| PFM Health Sciences, LP | 1,362,144 | $7.74M | 0.27% | +1,362,144 | New |
| Capital World Investors | 1,235,000 | $8.11M | 0.00% | +1,235,000 | New |
| Avoro Capital Advisors LLC | 2,055,883 | $10.2M | 0.17% | +2,055,883 | New |
| Ra Capital Management, L.P. | 1,857,755 | $11.9M | 0.21% | +1,857,755 | New |
| Vivo Capital, LLC | 3,015,545 | $19.3M | 1.16% | +3,015,545 | New |
| Novo Holdings A/S | 3,277,932 | $21.0M | 0.99% | +3,277,932 | New |