Io BiotechIOBTQ
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 21 institutions reported holding Io Biotech Inc. (IOBTQ) in their 13F filings, down 5 from Q2 2025. 9 opened new positions and 14 sold out. The largest holders were Novo Holdings A/S ($912K), Ikarian Capital, LLC ($554K) and Millennium Management ($506K). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Io Biotech Inc.
- CUSIP
- 449778109
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $1.4M |
| Exits | 14 | $14.1M |
All 13F filers, Q2 2025 → Q3 2025: 4,568,698 shares bought and 12,855,530 shares sold, net −8,286,832 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 21 holders
| Novo Holdings A/S | 0.06% | Reduce -25.1% | 2,512,453 | $912K |
| Ikarian Capital, LLC | 0.11% | New | 1,525,893 | $554K |
| Millennium Management | 0.00% | New | 1,392,396 | $506K |
| Marshall Wace, LLP | 0.00% | Reduce -50.0% | 1,052,631 | $379K |
| Bank of America Corp. | 0.00% | Reduce -50.5% | 799,953 | $290K |
| Morgan Stanley | 0.00% | Add +2.3% | 668,402 | $243K |
| Boothbay Fund Management, LLC | 0.01% | New | 591,180 | $215K |
| Renaissance Technologies | 0.00% | Add +292.9% | 547,315 | $199K |
| Point72 Asset Management | 0.00% | New | 250,000 | $91K |
| XTX Topco Ltd | 0.00% | Add +514.0% | 179,207 | $65K |
| Quadrature Capital Ltd | 0.00% | New | 83,382 | $30K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 75,000 | $27K |
| Goldman Sachs Group Inc. | 0.00% | New | 66,564 | $24K |
| Virtu Financial LLC | 0.00% | New | 39,063 | $14K |
| Geode Capital Management, LLC | 0.00% | No change | 33,307 | $12K |
| NewEdge Advisors, LLC | 0.00% | Add +6.1% | 25,692 | $9K |
| Hilton Capital Management, LLC | 0.00% | New | 25,510 | $9K |
| PKS Advisory Services, LLC | 0.00% | New | 19,500 | $7K |
| UBS Group AG | 0.00% | Reduce -47.1% | 7,013 | $3K |
| Citigroup Inc. | 0.00% | Add +311.5% | 1,292 | $469 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -7.6% | 122 | $44 |
"% of holder's portfolio" is IOBTQ's weight in each manager's 13F, not the share of Io Biotech Inc. the manager owns.