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, Q2 2026
Institutional positions in IO Biotech, Inc. as of Jun 30, 2026. 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
IOBT is no longer listed, and 13F filings after Q1 2026 list far fewer holders. See Q1 2026
- Institutional holders
- 0
- −12 vs. Q1 2026
- Shares held
- 0
- −3.39M (−100.0%) vs. Q1 2026
- Total value
- $0
- −$199.0K (−100.0%) vs. Q1 2026
- New holders
- 0
- 0 more added
- Sold out
- 12
- 0 more reduced
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding IO Biotech, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −1,386,565−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −451,852−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −348,352−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −301,291−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −265,792−100.0% | Sold out |
| Morgan Stanley | 0 | $0 | 0.00% | −206,215−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −194,158−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −72,495−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −57,974−100.0% | Sold out |
| Beacon Pointe Advisors, LLC | 0 | $0 | 0.00% | −42,600−100.0% | Sold out |
| Geode Capital Management, LLC | 0 | $0 | 0.00% | −33,307−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −30,980−100.0% | Sold out |