EcoR1 Capital as of March 31, 2019
Portfolio Holdings for EcoR1 Capital
EcoR1 Capital holds 41 positions in its portfolio as reported in the March 2019 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price |
|---|---|---|---|---|---|
| Argenx Se (ARGX) | 9.5 | $103M | 825k | 124.84 | |
| Kura Oncology (KURA) | 8.1 | $88M | 5.3M | 16.59 | |
| Mirati Therapeutics | 6.8 | $73M | 1.0M | 73.30 | |
| Crispr Therapeutics (CRSP) | 6.2 | $67M | 1.9M | 35.72 | |
| Xencor (XNCR) | 5.9 | $64M | 2.1M | 31.06 | |
| Spark Therapeutics | 5.5 | $60M | 529k | 113.88 | |
| Ironwood Pharmaceuticals (IRWD) | 5.5 | $60M | 4.4M | 13.53 | |
| Fibrogen | 5.0 | $54M | 1.0M | 54.35 | |
| Dicerna Pharmaceuticals | 4.5 | $49M | 3.3M | 14.65 | |
| Ascendis Pharma A S (ASND) | 3.9 | $43M | 361k | 117.70 | |
| Ascendis Pharma A S put | 3.9 | $42M | 360k | 117.70 | |
| Ultragenyx Pharmaceutical (RARE) | 3.2 | $35M | 498k | 69.36 | |
| Mirati Therapeutics | 2.4 | $26M | 349k | 73.30 | |
| Myokardia | 2.3 | $25M | 479k | 51.99 | |
| Fibrogen | 2.2 | $24M | 441k | 54.35 | |
| Assembly Biosciences | 2.1 | $23M | 1.2M | 19.69 | |
| Eiger Biopharmaceuticals | 2.1 | $22M | 1.6M | 13.98 | |
| Magenta Therapeutics | 1.9 | $21M | 1.3M | 16.47 | |
| Gossamer Bio (GOSS) | 1.5 | $17M | 772k | 21.67 | |
| Chiasma | 1.5 | $16M | 3.0M | 5.20 | |
| Kezar Life Sciences (KZR) | 1.4 | $15M | 857k | 17.74 | |
| Ironwood Pharmaceuticals Inc cl a | 1.4 | $15M | 1.1M | 13.53 | |
| Harpoon Therapeutics | 1.2 | $13M | 1.3M | 9.47 | |
| Arcus Biosciences Incorporated (RCUS) | 1.1 | $12M | 990k | 12.49 | |
| Mersana Therapeutics (MRSN) | 1.1 | $12M | 2.3M | 5.26 | |
| Rubius Therapeutics | 1.1 | $12M | 646k | 18.10 | |
| Rhythm Pharmaceuticals (RYTM) | 1.0 | $11M | 401k | 27.41 | |
| Surface Oncology | 1.0 | $11M | 2.3M | 4.77 | |
| Fibrogen (FGEN) | 0.8 | $9.2M | 168k | 54.35 | |
| Prothena (PRTA) | 0.8 | $8.8M | 727k | 12.13 | |
| Rocket Pharmaceuticals (RCKT) | 0.7 | $7.9M | 450k | 17.54 | |
| Arbutus Biopharma (ABUS) | 0.7 | $7.8M | 2.2M | 3.58 | |
| Aduro Biotech | 0.7 | $7.7M | 1.9M | 3.98 | |
| Unity Biotechnology | 0.7 | $7.4M | 907k | 8.11 | |
| Scholar Rock Hldg Corp (SRRK) | 0.6 | $6.4M | 339k | 18.79 | |
| Aquinox Pharmaceuticals | 0.6 | $6.1M | 2.3M | 2.70 | |
| Curis | 0.6 | $5.9M | 3.0M | 1.99 | |
| Vericel (VCEL) | 0.2 | $2.3M | 131k | 17.51 | |
| Zai Lab (ZLAB) | 0.2 | $2.3M | 79k | 29.51 | |
| Sienna Biopharmaceuticals (SNNAQ) | 0.2 | $1.9M | 800k | 2.32 | |
| Arvinas Ord (ARVN) | 0.1 | $738k | 50k | 14.76 |
