Institutional Ownership
Ibio Inc
CUSIP 451033708COM NEWIBIOQ1 2026
13D / 13G Filings
29
Schedule 13D/13G on record
Beneficial Filers
19
Distinct reporting persons
Largest Stake
13.0%
Max % of class reported
Institutional Holders
49
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
29 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Adar1 Capital Management, LLC | 13G/A | 13.0% | 1.35M | SEC |
| 2 | Feb 17, 2026 | Logos Global Management LP | 13G/A | 4.6% | — | SEC |
| 3 | Feb 17, 2026 | Lynx1 Capital Management LP | 13G/A | — | 49 | SEC |
| 4 | Jan 29, 2026 | Affinity Asset Advisors, LLC | 13G/A | 10.0% | 2.40M | SEC |
| 5 | Jan 22, 2026 | Integrated Core Strategies (Us) LLC | 13G | 5.2% | 1.24M | SEC |
| 6 | Dec 19, 2025 | Logos Global Management LP | 13G | 8.9% | — | SEC |
| 7 | Dec 17, 2025 | Ecor1 Capital, LLC | 13G | 9.9% | — | SEC |
| 8 | Dec 16, 2025 | Frazier Life Sciences Public Fund, L.P. | 13G | 8.7% | 1.95M | SEC |
| 9 | Dec 3, 2025 | Affinity Asset Advisors, LLC | 13G/A | 10.0% | 2.18M | SEC |
| 10 | Nov 14, 2025 | Ikarian Capital, LLC | 13G/A | 11.0% | 1.15M | SEC |
19 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Ibio Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Affinity Asset Advisors, LLC | 3.11M | $5.90M |
| 2 | Frazier Life Sciences Management, L.P. | 1.95M | $3.71M |
| 3 | Ecor1 Capital, LLC | 1.58M | $3.01M |
| 4 | Millennium Management LLC | 1.55M | $2.94M |
| 5 | Logos Global Management LP | 1.30M | $2.47M |
| 6 | Balyasny Asset Management L.P. | 1.01M | $1.92M |
| 7 | Ikarian Capital, LLC | 957.1K | $1.82M |
| 8 | Citadel Advisors LLC | 956.4K | $1.82M |
| 9 | Sio Capital Management, LLC | 904.3K | $1.72M |
| 10 | Marshall Wace, LLP | 620.6K | $1.18M |