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EcoR1 Capital, LLC

All holdings · as of Dec 31, 2025

28 positions

CompanyClassValueShares% of portfolio
ZYMEWORKS INC.$604.81M22,970,38827.6%
AnaptysBio, Inc.$382.03M7,880,09417.4%
Jazz Pharmaceuticals PLC$290.10M1,706,46913.2%
Crinetics Pharmaceuticals, Inc.$199.61M4,288,1209.1%
CENTESSA PHARMACEUTICALS PLC$77.91M3,115,0003.6%
CRISPR THERAPEUTICS AG$72.85M1,389,2763.3%
MBX Biosciences, Inc.MBXCommon Stock$66.98M2,123,6043.1%
Immunome Inc.$61.34M2,855,5902.8%
Oric Pharmaceuticals, Inc.$55.04M6,728,1162.5%
GALAPAGOS NV$54.51M1,667,1192.5%
Xencor Inc$49.77M3,251,1122.3%
BridgeBio Oncology Therapeutics, Inc.BBOTCommon Stock$35.35M2,823,1261.6%
Eton Pharmaceuticals, Inc.$34.34M2,030,5441.6%
CG Oncology, Inc.$32.05M772,0001.5%
Zenas BioPharma, Inc.ZBIOCommon Stock$28.67M789,5001.3%
Neurogene Inc.NGNECommon Stock$26.19M1,271,3421.2%
Structure Therapeutics Inc.GPCRADR$23.26M334,3801.1%
VAXCYTE, INC.$20.76M450,0000.9%
Aquestive Therapeutics, Inc.AQSTCommon Stock$16.96M2,625,0000.8%
Voyager Therapeutics, Inc.$15.73M4,002,8470.7%
Atara Biotherapeutics, Inc.ATRACommon Stock$10.37M573,1830.5%
MANNKIND CORP$9.41M1,660,0000.4%
NUVATION BIO INC$8.63M963,3330.4%
Evolus, Inc.$4.49M675,0000.2%
iBio, Inc.IBIOCommon Stock$4.30M2,228,0000.2%
Mereo BioPharma Group plcMREOADR$3.27M7,856,4660.1%
Camp4 Therapeutics Corp$1.99M325,0000.1%
SURROZEN INC$100.4K4,4440.0%
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