EcoR1 Capital as of Sept. 30, 2025
Portfolio Holdings for EcoR1 Capital
EcoR1 Capital holds 30 positions in its portfolio as reported in the September 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price |
|---|---|---|---|---|---|
| Zymeworks Del (ZYME) | 18.8 | $392M | 23M | 17.08 | |
| Anaptysbio Inc Common (ANAB) | 11.6 | $241M | 7.9M | 30.62 | |
| Uniqure Nv SHS (QURE) | 11.2 | $233M | 4.0M | 58.37 | |
| Jazz Pharmaceuticals Shs Usd (JAZZ) | 10.8 | $225M | 1.7M | 131.80 | |
| Crinetics Pharmaceuticals In (CRNX) | 8.6 | $179M | 4.3M | 41.65 | |
| Crispr Therapeutics Namen Akt (CRSP) | 4.3 | $90M | 1.4M | 64.81 | |
| Tango Therapeutics (TNGX) | 4.3 | $89M | 11M | 8.40 | |
| Oric Pharmaceuticals (ORIC) | 3.9 | $81M | 6.7M | 12.00 | |
| Apellis Pharmaceuticals (APLS) | 3.7 | $78M | 3.4M | 22.63 | |
| Xencor (XNCR) | 3.5 | $72M | 6.1M | 11.73 | |
| Galapagos Nv Spon Adr (GLPG) | 2.8 | $58M | 1.7M | 34.64 | |
| Immunome (IMNM) | 2.3 | $48M | 4.1M | 11.71 | |
| Eton Pharmaceuticals (ETON) | 2.1 | $44M | 2.0M | 21.73 | |
| Mbx Biosciences (MBX) | 1.8 | $37M | 2.1M | 17.50 | |
| Madrigal Pharmaceuticals (MDGL) | 1.7 | $34M | 75k | 458.66 | |
| Avidity Biosciences Ord (RNA) | 1.6 | $33M | 765k | 43.57 | |
| Bridgebio Oncology Therapeut Com New Added | 1.6 | $33M | 2.8M | 11.58 | |
| Neurogene (NGNE) | 1.1 | $22M | 1.3M | 17.33 | |
| Alkermes SHS (ALKS) | 0.7 | $15M | 500k | 30.00 | |
| Aquestive Therapeutics (AQST) | 0.7 | $15M | 2.6M | 5.59 | |
| Mestera (MTSR) | 0.7 | $14M | 272k | 52.33 | |
| Centessa Pharmaceuticals Sponsored Ads (CNTA) | 0.6 | $13M | 550k | 24.25 | |
| Prime Medicine (PRME) | 0.4 | $8.6M | 1.5M | 5.54 | |
| Atara Biotherapeutics Com New (ATRA) | 0.4 | $8.2M | 573k | 14.33 | |
| Kura Oncology (KURA) | 0.4 | $7.7M | 873k | 8.85 | |
| Pepgen (PEPG) | 0.2 | $3.7M | 800k | 4.62 | |
| Nuvation Bio *w Exp 02/10/202 (NUVB.WS) | 0.2 | $3.6M | 963k | 3.70 | |
| Voyager Therapeutics (VYGR) | 0.2 | $3.1M | 670k | 4.67 | |
| Compass Pathways Sponsored Ads (CMPS) | 0.1 | $1.5M | 265k | 5.73 | |
| Surrozen *w Exp 08/01/203 (SRZNW) | 0.0 | $859k | 67k | 12.89 |
