IOBT — Io Biotech Inc Institutional Holders · Q1 2026
Who owns Io Biotech Inc (IOBT)? 24 institutions reported holding $199,038 in SEC 13F filings for Q1 2026 (period ended 2026-03-31). Largest holders: Ikarian Capital, LLC ($81,391), Boothbay Fund Management, LLC ($26,524), Gsa Capital Partners LLP ($20,000).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Ikarian Capital, LLC | $81,391 | 1.4M | Hold |
| 2 | BOOTHBAY FUND MANAGEMENT, LLC | $26,524 | 451,852 | Hold |
| 3 | GSA CAPITAL PARTNERS LLP | $20,000 | 348,352 | New |
| 4 | MARSHALL WACE, LLP | $18,077 | 301,291 | Trimmed |
| 5 | XTX Topco Ltd | $15,602 | 265,792 | Added |
| 6 | MORGAN STANLEY | $12,105 | 206,215 | Trimmed |
| 7 | MILLENNIUM MANAGEMENT LLC | $11,397 | 194,158 | Added |
| 8 | CITIGROUP INC | $4,255 | 72,495 | Trimmed |
| 9 | JANE STREET GROUP, LLC | $3,403 | 57,974 | New |
| 10 | Beacon Pointe Advisors, LLC | $2,501 | 42,600 | Trimmed |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $1,955 | 33,307 | Hold |
| 12 | UBS Group AG | $1,828 | 30,980 | Trimmed |
| 13 | RENAISSANCE TECHNOLOGIES LLC | $0 | 0 | Exited |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
| 15 | NOVO HOLDINGS A/S | $0 | 0 | Exited |
| 16 | TWO SIGMA SECURITIES, LLC | $0 | 0 | Exited |
| 17 | Virtu Financial LLC | $0 | 0 | Exited |
| 18 | Hilton Capital Management, LLC | $0 | 0 | Exited |
| 19 | Scientech Research LLC | $0 | 0 | Exited |
| 20 | Dauntless Investment Group, LLC | $0 | 0 | Exited |
| 21 | BANK OF AMERICA CORP /DE/ | $0 | 0 | Exited |
| 22 | PKS Advisory Services, LLC | $0 | 0 | Exited |
| 23 | SBI Securities Co., Ltd. | $0 | 0 | Exited |
| 24 | ADAR1 Capital Management, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31