63 institutions reported holding $36.9M of IBIO INC (IBIO) in SEC 13F filings for 2026-03-31. Largest institutional holders: Affinity Asset Advisors, LLC ($5.9M), Frazier Life Sciences Management, L.P. ($3.7M), EcoR1 Capital, LLC ($3.0M), MILLENNIUM MANAGEMENT LLC ($2.9M), Logos Global Management LP ($2.5M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Affinity Asset Advisors, LLC | $5.9M | 3.1M | Added |
| 2 | Frazier Life Sciences Management, L.P. | $3.7M | 2.0M | Hold |
| 3 | EcoR1 Capital, LLC | $3.0M | 1.6M | Trimmed |
| 4 | MILLENNIUM MANAGEMENT LLC | $2.9M | 1.5M | New |
| 5 | Logos Global Management LP | $2.5M | 1.3M | Trimmed |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $2.1M | 1.1M | New |
| 7 | Balyasny Asset Management L.P. | $1.9M | 1.0M | Trimmed |
| 8 | Ikarian Capital, LLC | $1.8M | 957,062 | Hold |
| 9 | CITADEL ADVISORS LLC | $1.8M | 956,429 | New |
| 10 | Sio Capital Management, LLC | $1.7M | 904,268 | Added |
| 11 | MARSHALL WACE, LLP | $1.2M | 620,602 | Added |
| 12 | ADAR1 Capital Management, LLC | $892,768 | 469,878 | Added |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $784,178 | 412,725 | New |
| 14 | TWO SIGMA INVESTMENTS, LP | $776,830 | 408,858 | Trimmed |
| 15 | Walleye Capital LLC | $738,253 | 388,554 | Added |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | $736,602 | 387,567 | Added |
| 17 | NOESIS CAPITAL MANGEMENT CORP | $591,850 | 311,500 | Added |
| 18 | BANK OF AMERICA CORP /DE/ | $551,785 | 290,413 | Added |
| 19 | BOOTHBAY FUND MANAGEMENT, LLC | $483,383 | 254,412 | Hold |
| 20 | SILVERARC CAPITAL MANAGEMENT, LLC | $429,400 | 226,000 | Added |
| 21 | VANGUARD FIDUCIARY TRUST CO | $389,529 | 205,015 | New |
| 22 | GOLDMAN SACHS GROUP INC | $380,403 | 200,212 | New |
| 23 | DAFNA Capital Management LLC | $367,912 | 193,638 | New |
| 24 | STATE STREET CORP | $268,278 | 141,199 | Added |
| 25 | BlackRock, Inc. | $249,309 | 131,215 | Added |
Source: SEC Form 13F filings · as of 2026-03-31