EcoR1 Capital, LLC Q2 2018 Filing

Filed August 14, 2018

Portfolio Value

$1.1T

Holdings

33

Report Date

Q2 2018

Filing Type

13F-HR

All Holdings (33 positions)

#StockSharesValue% PortfolioType
1
FGENEURFIBROGEN INC
2,017,250$126.3B12.02%
2
IRWDIRONWOOD PHARMACEUTICALS INC
6,250,073$119.5B11.38%
3
ASMBASSEMBLY BIOSCIENCES INC
2,943,164$115.4B10.99%
4
ASNDASCENDIS PHARMA A S
1,464,067$97.4B9.27%
5
KURAKURA ONCOLOGY INC
3,904,675$71.1B6.77%
6
MDGLMADRIGAL PHARMACEUTICALS INC
199,500$55.8B5.31%
7
CELGENE CORP
585,000$46.5B4.42%Call
8
SRRKSCHOLAR ROCK HLDG CORP
2,671,161$41.7B3.97%
9
DICERNA PHARMACEUTICALS INC
2,961,147$36.3B3.45%
10
MGNXMACROGENICS INC
1,450,606$30.0B2.85%
11
ASNDASCENDIS PHARMA A S
447,000$29.7B2.83%Call
12
RCUSARCUS BIOSCIENCES INC
2,236,387$27.4B2.61%
13
UNITY BIOTECHNOLOGY INC
1,680,644$25.3B2.41%
14
KZRKEZAR LIFE SCIENCES INC
1,272,198$22.0B2.10%
15
FIBROGEN INC
350,000$21.9B2.09%Call
16
GBYSANGAMO THERAPEUTICS INC
1,509,671$21.4B2.04%
17
MAGENTA THERAPEUTICS INC
1,538,088$20.8B1.98%
18
GILDGILEAD SCIENCES INC
292,600$20.7B1.97%Call
19
IMMUNE DESIGN CORP
4,437,600$20.2B1.92%
20
WVEWAVE LIFE SCIENCES LTD
412,871$15.8B1.50%
21
SURFUSDSURFACE ONCOLOGY INC
890,808$14.5B1.38%
22
CLDNEUREIGER BIOPHARMACEUTICALS INC
1,039,500$12.7B1.21%
23
IRWDIRONWOOD PHARMACEUTICALS INC
577,600$11.0B1.05%Call
24
ACHILLION PHARMACEUTICALS INC
3,887,407$11.0B1.05%
25
KADMON HLDGS INC
2,500,000$10.0B0.95%
26
ASSEMBLY BIOSCIENCES INC
148,100$5.8B0.55%Call
27
DBV TECHNOLOGIES S A
298,100$5.8B0.55%
28
CRVSCORVUS PHARMACEUTICALS INC
450,400$4.9B0.47%
29
AQUINOX PHARMACEUTICALS INC
1,150,000$3.0B0.29%
30
ONCONOVA THERAPEUTICS INC
7,500,000$3.0B0.29%
31
ERYP1EURERYTECH PHARMA
153,964$1.7B0.17%
32
APTINYX INC
41,037$992.0M0.09%
33
INFIQINFINITY PHARMACEUTICALS INC
412,000$787.0M0.07%