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 2025
Institutional positions in IO Biotech, Inc. as of Dec 31, 2025. 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
- 22
- +1 vs. Q3 2025
- Shares held
- 7.85M
- −2.05M (−20.7%) vs. Q3 2025
- Total value
- $4.78M
- +$1.19M (+33.1%) vs. Q3 2025
- New holders
- 5
- 3 more added
- Sold out
- 4
- 8 more reduced
Compare with Q3 2025: 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 2025
Shares, value and share of portfolio for each institution holding IO Biotech, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Novo Holdings A/S | 2,512,453 | $1.53M | 0.12% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 1,386,565 | $844.3K | 0.11% | −139,328−9.1% | Reduced |
| Bank of America Corp | 799,953 | $486.4K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 539,182 | $328.3K | 0.00% | −129,220−19.3% | Reduced |
| Beacon Pointe Advisors, LLC | 506,000 | $308.1K | 0.00% | +506,000 | New |
| Boothbay Fund Management, LLC | 451,852 | $275.1K | 0.01% | −139,328−23.6% | Reduced |
| Dauntless Investment Group, LLC | 451,641 | $275.0K | 1.01% | +451,641 | New |
| Marshall Wace, LLP | 429,338 | $261.9K | 0.00% | −623,293−59.2% | Reduced |
| Renaissance Technologies LLC | 207,601 | $126.4K | 0.00% | −339,714−62.1% | Reduced |
| Millennium Management LLC | 138,716 | $84.5K | 0.00% | −1,253,680−90.0% | Reduced |
| Citigroup Inc | 111,447 | $67.9K | 0.00% | +110,155+8,525.9% | Added |
| Bridgeway Capital Management, LLC | 75,000 | $45.7K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 44,757 | $27.3K | 0.00% | +44,757 | New |
| UBS Group AG | 43,578 | $26.5K | 0.00% | +36,565+521.4% | Added |
| Geode Capital Management, LLC | 33,307 | $20.3K | 0.00% | 00.0% | Unchanged |
| Hilton Capital Management, LLC | 25,510 | $15.5K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 24,964 | $15.2K | 0.00% | +24,964 | New |
| PKS Advisory Services, LLC | 20,000 | $12.2K | 0.00% | +500+2.6% | Added |
| Virtu Financial LLC | 19,078 | $12.0K | 0.00% | −19,985−51.2% | Reduced |
| XTX Topco Ltd | 15,864 | $9.66K | 0.00% | −163,343−91.1% | Reduced |
| Scientech Research LLC | 11,255 | $6.85K | 0.00% | +11,255 | New |
| SBI Securities Co., Ltd. | 122 | $74 | 0.00% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −83,382−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −66,564−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −25,692−100.0% | Sold out |