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 |
|---|---|---|---|---|---|
| SBI Securities Co., Ltd. | 122 | $74 | 0.00% | 00.0% | Unchanged |
| Scientech Research LLC | 11,255 | $6.85K | 0.00% | +11,255 | New |
| XTX Topco Ltd | 15,864 | $9.66K | 0.00% | −163,343−91.1% | Reduced |
| Virtu Financial LLC | 19,078 | $12.0K | 0.00% | −19,985−51.2% | Reduced |
| PKS Advisory Services, LLC | 20,000 | $12.2K | 0.00% | +500+2.6% | Added |
| ADAR1 Capital Management, LLC | 24,964 | $15.2K | 0.00% | +24,964 | New |
| Hilton Capital Management, LLC | 25,510 | $15.5K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 33,307 | $20.3K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 43,578 | $26.5K | 0.00% | +36,565+521.4% | Added |
| Two Sigma Securities, LLC | 44,757 | $27.3K | 0.00% | +44,757 | New |
| Bridgeway Capital Management, LLC | 75,000 | $45.7K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 111,447 | $67.9K | 0.00% | +110,155+8,525.9% | Added |
| Millennium Management LLC | 138,716 | $84.5K | 0.00% | −1,253,680−90.0% | Reduced |
| Renaissance Technologies LLC | 207,601 | $126.4K | 0.00% | −339,714−62.1% | Reduced |
| Marshall Wace, LLP | 429,338 | $261.9K | 0.00% | −623,293−59.2% | Reduced |
| Dauntless Investment Group, LLC | 451,641 | $275.0K | 1.01% | +451,641 | New |
| Boothbay Fund Management, LLC | 451,852 | $275.1K | 0.01% | −139,328−23.6% | Reduced |
| Beacon Pointe Advisors, LLC | 506,000 | $308.1K | 0.00% | +506,000 | New |
| Morgan Stanley | 539,182 | $328.3K | 0.00% | −129,220−19.3% | Reduced |
| Bank of America Corp | 799,953 | $486.4K | 0.00% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 1,386,565 | $844.3K | 0.11% | −139,328−9.1% | Reduced |
| Novo Holdings A/S | 2,512,453 | $1.53M | 0.12% | 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 |