EcoR1 Capital, LLC Q2 2020 Filing

Filed August 14, 2020

Portfolio Value

$1.4T

Holdings

48

Report Date

Q2 2020

Filing Type

13F-HR

All Holdings (48 positions)

#StockSharesValue% PortfolioType
1
XNCRXENCOR INC
4,547,072$147.3B10.88%
2
PRTAPROTHENA CORP PLC
9,426,640$98.6B7.28%
3
ORICORIC PHARMACEUTICALS INC
2,642,218$89.1B6.58%
4
MORFMORPHIC HLDG INC
2,837,973$76.8B5.67%
5
KURAKURA ONCOLOGY INC
4,608,529$75.1B5.55%
6
ASMBASSEMBLY BIOSCIENCES INC
3,153,797$73.5B5.43%
7
DICERNA PHARMACEUTICALS INC
2,721,993$69.1B5.11%
8
ANABANAPTYSBIO INC
3,075,014$68.7B5.07%
9
RNAAVIDITY BIOSCIENCES INC
2,103,950$59.5B4.39%
10
NEOLEUKIN THERAPEUTICS INC
3,536,684$58.7B4.34%
11
RCUSARCUS BIOSCIENCES INC
1,810,000$44.8B3.31%
12
AKOUOS INC
1,975,984$44.5B3.28%
13
GONGERON CORP
19,230,769$41.9B3.10%
14
MRTXEURMIRATI THERAPEUTICS INC
357,849$40.9B3.02%
15
RAREULTRAGENYX PHARMACEUTICAL IN
519,119$40.6B3.00%
16
CONSTELLATION PHARMCETICLS I
1,237,885$37.2B2.75%Call
17
SURFUSDSURFACE ONCOLOGY INC
5,033,861$33.0B2.44%
18
BCELATRECA INC
1,489,185$31.7B2.34%
19
APPLIED MOLECULAR TRANS INC
1,150,000$28.9B2.14%
20
FATEFATE THERAPEUTICS INC
619,855$21.3B1.57%
21
DNLIDENALI THERAPEUTICS INC
733,561$17.7B1.31%
22
BMY-RBRISTOL-MYERS SQUIBB CO
4,748,300$17.0B1.26%
23
CYCLERION THERAPEUTICS INC
2,742,276$16.2B1.20%
24
FULCFULCRUM THERAPEUTICS INC
882,353$16.1B1.19%
25
CRNXCRINETICS PHARMACEUTICALS IN
859,802$15.1B1.11%
26
STROSUTRO BIOPHARMA INC
1,828,492$14.2B1.05%
27
RLMDRELMADA THERAPEUTICS INC
200,000$8.9B0.66%
28
KROSKEROS THERAPEUTICS INC
220,216$8.3B0.61%
29
GLYCEURGLYCOMIMETICS INC
1,889,000$7.1B0.52%
30
ACADACADIA PHARMACEUTICALS INC
135,413$6.6B0.48%
31
EVELO BIOSCIENCES INC
1,250,000$6.1B0.45%
32
PREVAIL THERAPEUTICS INC
367,218$5.5B0.40%
33
IRWDIRONWOOD PHARMACEUTICALS INC
500,000$5.2B0.38%Call
34
EXICURE INC
1,673,301$4.1B0.30%
35
YB4PSAVARA INC
1,432,664$3.6B0.26%
36
MAGENTA THERAPEUTICS INC
450,000$3.4B0.25%
37
LIFESCI ACQUISITION CORP
300,000$3.3B0.24%
38
ACRSACLARIS THERAPEUTICS INC
1,531,312$2.5B0.18%
39
RPRXROYALTY PHARMA PLC
50,000$2.4B0.18%
40
FIVE PRIME THERAPEUTICS INC
379,945$2.3B0.17%
41
CRVSCORVUS PHARMACEUTICALS INC
737,612$2.0B0.15%
42
RPTXREPARE THERAPEUTICS INC
50,000$1.6B0.11%
43
ICPTUSDINTERCEPT PHARMACEUTICALS IN
25,300$1.2B0.09%Call
44
MGTXMEIRAGTX HLDGS PLC
94,819$1.2B0.09%
45
XOMAXOMA CORP DEL
50,809$1.0B0.07%
46
KLDOKALEIDO BIOSCIENCES INC
31,374$233.0M0.02%
47
EQEQUILLIUM INC
59,014$174.0M0.01%
48
PLRXPLIANT THERAPEUTICS INC
1,300$42.0M0.00%