EcoR1 Capital as of March 31, 2015
Portfolio Holdings for EcoR1 Capital
EcoR1 Capital holds 22 positions in its portfolio as reported in the March 2015 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price |
|---|---|---|---|---|---|
| Atara Biotherapeutics (ATRA) | 14.5 | $42M | 1.0M | 41.57 | |
| Epizyme | 10.4 | $30M | 1.6M | 18.78 | |
| Receptos | 8.7 | $25M | 151k | 164.89 | |
| ARRAY BIOPHARMA SR CONV NT 3.000% Due 06/01/2020 Note (Principal) | 7.7 | $22M | 18M | 1.26 | |
| Assembly Biosciences | 7.3 | $21M | 1.6M | 13.24 | |
| Clovis Oncology Put Option | 6.5 | $19M | 2.5k | 7423.20 | |
| Clovis Oncology | 6.3 | $18M | 243k | 74.23 | |
| Kite Pharma | 5.7 | $16M | 281k | 57.68 | |
| Flex Pharma | 5.5 | $16M | 806k | 19.60 | |
| Ironwood Pharmaceuticals Cl A Com Cl A (IRWD) | 5.1 | $15M | 905k | 16.00 | |
| Fibrogen (FGEN) | 4.4 | $13M | 400k | 31.38 | |
| Retrophin | 3.4 | $9.8M | 410k | 23.96 | |
| Kindred Biosciences | 2.0 | $5.9M | 821k | 7.14 | |
| Genvec | 2.0 | $5.9M | 2.0M | 2.95 | |
| Sage Therapeutics (SAGE) | 2.0 | $5.6M | 113k | 50.23 | |
| Array BioPharma Call Option | 1.9 | $5.4M | 7.4k | 737.14 | |
| Calithera Biosciences | 1.7 | $4.9M | 296k | 16.42 | |
| Forward Pharma A/s Sponsored Adr | 1.6 | $4.5M | 159k | 28.32 | |
| Xenon Pharmaceuticals (XENE) | 1.3 | $3.7M | 221k | 16.87 | |
| Flexion Therapeutics | 1.3 | $3.7M | 163k | 22.52 | |
| Targacept | 0.6 | $1.8M | 620k | 2.97 | |
| Epizyme Inc call Call Option | 0.1 | $282k | 150.00 | 1880.00 |
