| Sym | Company | Class | Ownership | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|---|
| ZYME | Zymeworks Inc. | Common Stock | 25.4% | $217M | $10.3M | 17.7M | +4.99% | EcoR1 Capital, LLC | Apr 4, 2025 |
| PRTA | Prothena Corporation plc | Ordinary Shares | 21.5% | $161M | 11.6M | EcoR1 Capital, LLC | Dec 31, 2024 | ||
| MRSN | Mersana Therapeutics, Inc. | Common Stock | 9.99% | $5.21M | 11.6M | EcoR1 Capital, LLC | Dec 19, 2024 | ||
| TNGX | Tango Therapeutics, Inc. | Common Stock | 9.9% | $19.8M | 10.6M | EcoR1 Capital, LLC | Dec 31, 2024 | ||
| ALVR | Allovir, Inc. | Common Stock | 8.1% | $3.89M | 409K | EcoR1 Capital, LLC | Dec 31, 2024 | ||
| ETON | Eton Pharmaceuticals, Inc. | Common Stock | 7.7% | $30.1M | 1.98M | EcoR1 Capital, LLC | Dec 31, 2024 | ||
| QURE | uniQure N.V. | Ordinary Shares, par value(euro)0.05 per share | 7.5% | $45.4M | 3.63M | EcoR1 Capital, LLC | Dec 10, 2024 | ||
| AVIR | Atea Pharmaceuticals, Inc. | Common Stock | 4% | $11.3M | 3.34M | EcoR1 Capital, LLC | Dec 31, 2024 | ||
| HOOK | HOOKIPA Pharma Inc. | Common Stock | 4% | $486K | 389K | EcoR1 Capital, LLC | Dec 31, 2024 | ||
| AADI | Aadi Bioscience, Inc. | Common Stock | 1.4% | $684K | 345K | EcoR1 Capital, LLC | Dec 31, 2024 |
| Sym | Target | Class | Ownership | Change | Current Shares | Change | Value | Reporting name | Form | Report Period | Date Filed |
|---|