EcoR1 Capital

Latest statistics and disclosures from EcoR1 Capital's latest quarterly 13F-HR filing:

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Positions held by EcoR1 Capital consolidated in one spreadsheet with up to 7 years of data

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Portfolio Holdings for EcoR1 Capital

Companies in the EcoR1 Capital portfolio as of the September 2021 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Prothena Corp SHS (PRTA) 28.0 $804M 11M 71.23
Morphic Hldg (MORF) 7.8 $224M 4.0M 56.64
Anaptysbio Inc Common (ANAB) 7.1 $204M 7.5M 27.12
Arcus Biosciences Incorporated (RCUS) 6.2 $179M +53% 5.1M 34.87
Xencor (XNCR) 5.6 $160M 4.9M 32.66
Nuvation Bio Com Cl A (NUVB) 4.7 $136M 14M 9.94
Alector (ALEC) 4.0 $114M +17% 5.0M 22.82
Mirati Therapeutics (MRTX) 2.9 $82M 464k 176.91
Galapagos Nv Spon Adr (GLPG) 2.9 $82M NEW 1.6M 52.61
Shattuck Labs (STTK) 2.6 $76M +11% 3.7M 20.38
Oric Pharmaceuticals (ORIC) 2.5 $73M +12% 3.5M 20.91
Kura Oncology (KURA) 2.4 $70M 3.7M 18.73
Avidity Biosciences Ord (RNA) 2.4 $68M +31% 2.8M 24.63
Gritstone Oncology Ord (GRTS) 2.1 $60M +62% 5.6M 10.80

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Relay Therapeutics (RLAY) 1.5 $44M -69% 1.4M 31.53
Iteos Therapeutics (ITOS) 1.2 $35M +25% 1.3M 27.00
Nurix Therapeutics (NRIX) 1.2 $34M -42% 1.1M 29.96
Janux Therapeutics (JANX) 1.1 $31M 1.4M 21.63
Design Therapeutics (DSGN) 1.0 $27M +47% 1.9M 14.69
Blueprint Medicines Call Option (BPMC) 0.9 $26M NEW 250k 103.73
Protagonist Therapeutics (PTGX) 0.9 $26M NEW 1.4M 17.72
Dicerna Pharmaceuticals (DRNA) 0.9 $25M NEW 1.2M 20.16
Akouos (AKUS) 0.8 $23M 2.0M 11.61
Solid Biosciences (SLDB) 0.8 $22M 9.2M 2.39
Edgewise Therapeutics (EWTX) 0.7 $21M +4% 1.3M 16.60
Ovid Therapeutics (OVID) 0.7 $20M 6.1M 3.36
Tango Therapeutics Com Added 0.6 $17M NEW 1.3M 12.93
Bluebird Bio (BLUE) 0.5 $15M NEW 803k 19.11
Erasca Com Added 0.5 $15M NEW 700k 21.22
Centessa Pharmaceuticals Sponsored Ads (CNTA) 0.4 $13M 755k 16.70
Silverback Therapeutics (SBTX) 0.4 $12M -54% 1.2M 9.98
Odonate Therapeutics Ord (ODT) 0.4 $11M +348% 3.7M 2.91
Corvus Pharmaceuticals (CRVS) 0.4 $10M -41% 2.1M 4.84
Immunovant (IMVT) 0.3 $9.9M NEW 1.1M 8.69
Nuvation Bio *w Exp 07/07/202 (NUVB.WS) 0.3 $9.6M 963k 9.94
C4 Therapeutics Com Stk (CCCC) 0.3 $8.9M 200k 44.68
Kronos Bio (KRON) 0.3 $8.1M 387k 20.96
Neoleukin Therapeutics (NLTX) 0.2 $6.2M -63% 861k 7.23
Frazier Lifesciences Acqu SHS (FLAC) 0.2 $5.8M +193% 588k 9.82
Ac Immune Sa SHS (ACIU) 0.2 $5.0M -71% 751k 6.71
Ngm Biopharmaceuticals Call Option (NGM) 0.2 $5.0M +70% 245k 20.41
Cyclerion Therapeutics (CYCN) 0.2 $4.9M 1.6M 3.07
Jiya Acquisition Corp Com Cl A (JYAC) 0.2 $4.9M 500k 9.75
Verve Therapeutics (VERV) 0.2 $4.7M 100k 47.00
Kinnate Biopharma (KNTE) 0.1 $4.0M +600% 175k 23.02
Health Sciences Acq Corp 2 Ord SHS (HSAQ) 0.1 $4.0M 400k 9.89
Fs Development Corp Ii Com Cl A (FSII) 0.1 $3.7M +147% 371k 9.95
Dyne Therapeutics (DYN) 0.1 $3.6M 215k 16.60
Igm Biosciences (IGMS) 0.1 $2.5M 38k 65.76
Forma Therapeutics Hldgs SHS (FMTX) 0.1 $2.1M -14% 90k 23.19
Bcls Acquisition Corp Com Cl A (BLSA) 0.1 $2.0M 200k 9.96
Helix Acquisition Corp Com Cl A (HLXA) 0.1 $2.0M 200k 9.95
5 01 Acquisition Corp Com Cl A (FVAM) 0.1 $2.0M 200k 9.82
Eucrates Biomedical Acqu Cor SHS (EUCR) 0.1 $2.0M 200k 9.78
Bolt Biotherapeutics (BOLT) 0.1 $1.8M 150k 12.32
Caribou Biosciences Com Added 0.1 $1.8M NEW 75k 23.87
Arya Sciences Acqu Corp Iv Cl A (ARYD) 0.1 $1.5M 150k 10.05
Pmv Pharmaceuticals (PMVP) 0.1 $1.5M 50k 29.80
Bioatla (BCAB) 0.1 $1.5M 50k 29.44
Repare Therapeutics Ord (RPTX) 0.0 $1.3M 50k 25.72
Meiragtx Holdings (MGTX) 0.0 $1.2M 95k 13.18
Voyager Therapeutics (VYGR) 0.0 $1.2M NEW 446k 2.63
Caremax *w Exp 06/08/202 (CMAXW) 0.0 $986k 100k 9.86
Turmeric Acquisition Corp Cl A (TMPM) 0.0 $979k 100k 9.79
Frazier Lifesciences Acqu *w Exp 11/30/202 (FLACW) 0.0 $655k 67k 9.83
Eucrates Biomedical Acqu Cor *w Exp 10/23/202 (EUCRW) 0.0 $652k 67k 9.78
Omega Alpha Spac Cl A (OMEG) 0.0 $487k 50k 9.74
Surrozen *w Exp 10/28/2025 0.0 $471k NEW 67k 7.07
Turmeric Acquisition Corp *w Exp 10/08/202 (TMPMW) 0.0 $326k 33k 9.78
Scholar Rock Hldg Corp (SRRK) 0.0 $271k NEW 8.2k 33.02
Alpine Immune Sciences (ALPN) 0.0 $75k -98% 7.0k 10.71

Past Filings by EcoR1 Capital

SEC 13F filings are viewable for EcoR1 Capital going back to 2014

View all past filings