| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Affinity Asset Advisors, LLC | $5.9M | 3.1M | ▲+51% Added · +1.1M sh | Q1 2026 | |
| 2 | Frazier Life Sciences Management, L.P. | $3.7M | 2.0M | —Held | Q1 2026 | |
| 3 | EcoR1 Capital, LLC | $3.0M | 1.6M | ▼−29% Reduced · −645K sh | Q1 2026 | |
| 4 | MILLENNIUM MANAGEMENT LLC | $2.9M | 1.5M | ▲New +1.5M sh | Q1 2026 | |
| 5 | Logos Global Management LP | $2.5M | 1.3M | ▼−35% Reduced · −700K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $2.1M | 1.1M | ▲New +1.1M sh | Q1 2026 | |
| 7 | BALYASNY ASSET MANAGEMENT L.P. | $1.9M | 1.0M | ▼−7.8% Reduced · −85K sh | Q1 2026 | |
| 8 | Ikarian Capital, LLC | $1.8M | 957K | —Held | Q1 2026 | |
| 9 | CITADEL ADVISORS LLC | $1.8M | 956K | ▲New +956K sh | Q1 2026 | |
| 10 | MARSHALL WACE, LLP | $1.2M | 621K | ▲+412% Added · +499K sh | Q1 2026 | |
| 11 | ADAR1 Capital Management, LLC | $893K | 470K | ▲+16% Added · +64K sh | Q1 2026 | |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $784K | 413K | ▲New +413K sh | Q1 2026 | |
| 13 | TWO SIGMA INVESTMENTS, LP | $777K | 409K | ▼−10% Reduced · −47K sh | Q1 2026 | |
| 14 | Walleye Capital LLC | $738K | 389K | ▲+96% Added · +190K sh | Q1 2026 | |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | $737K | 388K | ▲+74% Added · +165K sh | Q1 2026 | |
| 16 | BANK OF AMERICA CORP /DE/ | $552K | 290K | ▲+151% Added · +175K sh | Q1 2026 | |
| 17 | BOOTHBAY FUND MANAGEMENT, LLC | $483K | 254K | —Held | Q1 2026 | |
| 18 | VANGUARD FIDUCIARY TRUST CO | $390K | 205K | ▲New +205K sh | Q1 2026 | |
| 19 | GOLDMAN SACHS GROUP INC | $380K | 200K | ▲New +200K sh | Q1 2026 | |
| 20 | DAFNA Capital Management LLC | $368K | 194K | ▲New +194K sh | Q1 2026 | |
| 21 | STATE STREET CORP | $268K | 141K | ▲+94% Added · +68K sh | Q1 2026 | |
| 22 | BlackRock, Inc. | $249K | 131K | ▲+207% Added · +88K sh | Q1 2026 | |
| 23 | NORTHERN TRUST CORP | $147K | 77K | ▲+92% Added · +37K sh | Q1 2026 | |
| 24 | XTX Topco Ltd | $119K | 62K | ▲+69% Added · +25K sh | Q1 2026 | |
| 25 | MORGAN STANLEY | $59K | 31K | ▲+12% Added · +3K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Company | Co-held by | Combined value |
|---|---|---|
| REVOLUTION MEDICINES INCRVMD | 10 funds | $347.1M |
| JAZZ PHARMACEUTICALS PLCJAZZ | 9 funds | $611.6M |
| ERASCA INCERAS | 9 funds | $603.3M |
| ABIVAX SA-ADRABVX | 9 funds | $206.1M |
| BIOGEN INCBIIB | 9 funds | $112.6M |
| OLEMA PHARMACEUTICALS INCOLMA | 9 funds | $66.7M |
| UNIQURE NVQURE | 9 funds | $12.2M |
| NVIDIA CORPNVDA | 8 funds | $5.6B |
| AMAZON.COM INCAMZN | 8 funds | $3.5B |
| APPLE INCAAPL | 8 funds | $2.9B |
| SS SPDR S&P 500 ETF TRUST-USSPY | 8 funds | $2.2B |
| MICROSOFT CORPMSFT | 8 funds | $1.8B |
Ranked by how many of IBIO's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 26, 2026 | Banjak Marc | Chief Legal Officer | Buy (P) | 13K | $21K |
| Mar 26, 2026 | Banjak Marc | Chief Legal Officer | Buy (P) | 1K | $3K |
| Mar 19, 2026 | Brenner Martin | See Remarks, Director | Buy (P) | 12K | $25K |
| Mar 19, 2026 | Duran Felipe | Chief Financial Officer | Buy (P) | 25K | $50K |
| Jan 10, 2025 | Sender Gary | Director | Buy (P) | 9K | $25K |
| Jan 10, 2025 | Parada Antonio Bernardino Guimaraes | Director | Buy (P) | 184K | $500K |
| Jan 10, 2025 | Clark William D | Director | Buy (P) | 2K | $5K |
| Jan 10, 2025 | Arkowitz David | Director | Buy (P) | 18K | $50K |
| Jan 10, 2025 | Banjak Marc | Chief Legal Officer | Buy (P) | 9K | $25K |
| Jan 10, 2025 | Brenner Martin | See Remarks, Director | Buy (P) | 9K | $25K |
| Jan 10, 2025 | Duran Felipe | Chief Financial Officer | Buy (P) | 9K | $25K |
| Nov 1, 2023 | Brenner Martin | See Remarks | Sell (S) | 5K | $1K |
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/IBIO/capital-change-brief"
Use Arkolith's capital_change_brief for IBIO. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for IBIO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.