EcoR1 Capital, LLC Q4 2017 Filing
Filed February 14, 2018
Portfolio Value
$888.1B
Holdings
30
Report Date
Q4 2017
Filing Type
13F-HR
All Holdings (30 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | ASMBASSEMBLY BIOSCIENCES INC | 2,943,164 | $133.2B | 15.00% | |
| 2 | FGENEURFIBROGEN INC | 2,047,737 | $97.1B | 10.93% | |
| 3 | —CELGENE CORPORATION | 875,000 | $91.3B | 10.28% | Call |
| 4 | IRWDIRONWOOD PHARMACEUTICALS INC | 5,885,583 | $88.2B | 9.93% | |
| 5 | ASNDASCENDIS PHARMA | 2,107,600 | $84.4B | 9.51% | |
| 6 | KURAKURA ONCOLOGY INC | 3,766,852 | $57.6B | 6.49% | |
| 7 | —DICERNA PHARMACEUTICALS INC | 4,836,547 | $43.7B | 4.92% | |
| 8 | ARRYEURARRAY BIOPHARMA INC | 2,882,712 | $36.9B | 4.15% | |
| 9 | WVEWAVE LIFE SCIENCES LTD | 936,163 | $32.9B | 3.70% | |
| 10 | —MYOKARDIA INC | 778,393 | $32.8B | 3.69% | |
| 11 | APLSAPELLIS PHARMACEUTICALS INC | 1,144,558 | $24.8B | 2.80% | |
| 12 | —SPARK THERAPEUTICS INC | 455,500 | $23.4B | 2.64% | Call |
| 13 | MGNXMACROGENICS INC | 1,140,794 | $21.7B | 2.44% | |
| 14 | RYTMRHYTHM PHARMACEUTICALS INC | 530,161 | $15.4B | 1.73% | |
| 15 | —IMMUNE DESIGN CORP | 3,562,600 | $13.9B | 1.56% | |
| 16 | —ATYR PHARMA INC | 3,917,972 | $13.7B | 1.54% | |
| 17 | —FIBROGEN INC | 285,400 | $13.5B | 1.52% | Call |
| 18 | GLPGGALAPAGOS NV (ADR) | 110,384 | $10.3B | 1.17% | |
| 19 | ONCBEIGENE LTD | 83,667 | $8.2B | 0.92% | |
| 20 | IRWDIRONWOOD PHARMACEUTICALS INC | 500,000 | $7.5B | 0.84% | Call |
| 21 | CRVSCORVUS PHARMACEUTICALS INC | 588,432 | $6.1B | 0.69% | |
| 22 | —ACHILLION PHARMACEUTICALS INC | 1,840,725 | $5.3B | 0.60% | |
| 23 | QUREUNIQURE NV | 263,900 | $5.2B | 0.58% | Call |
| 24 | —KINDRED BIOSCIENCES INC | 544,880 | $5.1B | 0.58% | |
| 25 | —CLEMENTIA PHARMACEUTICALS | 194,166 | $3.7B | 0.41% | |
| 26 | MDGLMADRIGAL PHARMACEUTICALS INC | 35,000 | $3.2B | 0.36% | |
| 27 | DNLIDENALI THERAPEUTICS INC | 200,000 | $3.1B | 0.35% | |
| 28 | XNCRXENCOR INC | 112,976 | $2.5B | 0.28% | |
| 29 | MRTXEURMIRATI THERAPEUTICS INC | 103,240 | $1.9B | 0.21% | |
| 30 | NTLAINTELLIA THERAPEUTICS INC | 75,000 | $1.4B | 0.16% | Call |