EcoR1 Capital, LLC Q2 2017 Filing
Filed August 14, 2017
Portfolio Value
$563.2B
Holdings
36
Report Date
Q2 2017
Filing Type
13F-HR
All Holdings (36 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | —ALEXION PHARMACEUTICALS, INC | 569,500 | $78.2B | 13.89% | Call |
| 2 | IRWDIRONWOOD PHARMACEUTICALS INC | 3,753,635 | $70.9B | 12.58% | |
| 3 | ASMBASSEMBLY BIOSCIENCES INC | 2,943,164 | $60.8B | 10.79% | |
| 4 | FGENEURFIBROGEN INC | 1,585,457 | $51.2B | 9.09% | |
| 5 | GLPGGALAPAGOS NV SPON ADR | 578,505 | $44.3B | 7.86% | |
| 6 | ASNDASCENDIS PHARMA A S | 1,482,600 | $41.2B | 7.31% | |
| 7 | GILDGILEAD SCIENCES INC | 500,000 | $38.0B | 6.75% | Call |
| 8 | GBYSANGAMO BIOSCIENCES INC | 2,568,119 | $22.6B | 4.01% | |
| 9 | KURAKURA ONCOLOGY INC COM | 2,033,622 | $18.9B | 3.36% | |
| 10 | —TOCAGEN INC | 1,502,373 | $18.1B | 3.21% | |
| 11 | CTMXCYTOMX THERAPEUTICS INC | 794,969 | $12.3B | 2.19% | |
| 12 | EDITEDITAS MEDICINE INC COM | 717,107 | $12.0B | 2.14% | |
| 13 | —CASCADIAN THERAPEUTICS INC | 3,000,000 | $11.1B | 1.98% | |
| 14 | CRVSCORVUS PHARMACEUTICALS INC | 805,000 | $9.7B | 1.73% | |
| 15 | VRTXVERTEX PHARMACEUTICALS INC | 60,000 | $9.1B | 1.62% | Call |
| 16 | FATEFATE THERAPEUTICS INC | 2,537,026 | $8.2B | 1.46% | |
| 17 | —ATYR PHARMA INC | 2,292,659 | $7.8B | 1.38% | |
| 18 | —OVASCIENCE INC | 3,512,332 | $5.5B | 0.97% | |
| 19 | ACRSACLARIS THERAPEUTICS INC | 185,472 | $5.0B | 0.89% | |
| 20 | —KINDRED BIOSCIENCES INC | 544,880 | $4.7B | 0.83% | |
| 21 | TTPHEURTETRAPHASE PHARMACEUTICALS INC | 633,400 | $4.5B | 0.80% | |
| 22 | EDITEDITAS MEDICINE INC COM | 255,000 | $4.3B | 0.77% | Call |
| 23 | —REGULUS THERAPEUTICS INC | 3,709,144 | $3.7B | 0.65% | |
| 24 | —ACHILLION PHARMACEUTICALS INC | 742,835 | $3.4B | 0.61% | |
| 25 | —NABRIVA THERAPEUTICS | 264,773 | $2.8B | 0.49% | |
| 26 | —DICERNA PHARMACEUTICALS INC | 767,992 | $2.4B | 0.43% | |
| 27 | ADVMCHFADVERUM BIOTECHNOLOGIES INC | 874,447 | $2.2B | 0.39% | |
| 28 | NERVGBPMINERVA NEUROSCIENCES INC | 223,802 | $2.0B | 0.35% | |
| 29 | —BIOHAVEN PHARMACEUTICAL HLDG CO LTD | 70,000 | $1.8B | 0.31% | |
| 30 | AGIOAGIOS PHARMACEUTICALS INC | 23,300 | $1.2B | 0.21% | |
| 31 | CCXIEURCHEMOCENTRYX INC | 118,000 | $1.1B | 0.20% | |
| 32 | BMYBRISTOL MYERS SQUIBB CO | 17,060 | $951.0M | 0.17% | |
| 33 | CLVSEURCLOVIS ONCOLOGY INC | 10,000 | $936.0M | 0.17% | |
| 34 | ALNYALNYLAM PHARMACEUTICALS INC | 10,425 | $831.0M | 0.15% | |
| 35 | SGENEURSEATTLE GENETICS INC | 15,000 | $776.0M | 0.14% | |
| 36 | —ARATANA THERAPEUTICS INC | 100,000 | $723.0M | 0.13% |