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EcoR1 Capital, LLC

Q4 2025 Holdings

Filed 2026-02-17 | 30 holdings | $2.2B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Zymeworks Inc(ZYME)COM98985Y108$604.8M22,970,38827.4%
Anaptysbio Inc(ANAB)COM032724106$382.0M7,880,09417.3%
Jazz Pharmaceuticals PLC(JAZZ)SHS USDG50871105$290.1M1,706,46913.2%
Crinetics Pharmaceuticals in(CRNX)COM22663K107$199.6M4,288,1209.1%
Centessa Pharmaceuticals PLC(CNTA)SPONSORED ADS152309100$77.9M3,115,0003.5%
Crispr Therapeutics AG(CRSP)NAMEN AKTH17182108$72.9M1,389,2763.3%
MBX Biosciences Inc(MBX)COM55287L101$67.0M2,123,6043.0%
Immunome Inc(IMNM)COM45257U108$61.3M2,855,5902.8%
Oric Pharmaceuticals Inc(ORIC)COM68622P109$55.0M6,728,1162.5%
Galapagos NV(GLPG)SPON ADR36315X101$54.5M1,667,1192.5%
Xencor Inc(XNCR)COM98401F105$49.8M3,251,1122.3%
Bridgebio Oncology Therapeut(BBOT)COM NEW107924102$35.3M2,823,1261.6%
Eton Pharmaceuticals Inc(ETON)COM29772L108$34.3M2,030,5441.6%
CG Oncology Inc(CGON)COM156944100$32.1M772,0001.5%
Zenas Biopharma Inc(ZBIO)COM98937L105$28.7M789,5001.3%
Neurogene Inc(NGNE)COM64135M105$26.2M1,271,3421.2%
Structure Therapeutics Inc(GPCR)SPONSORED ADS86366E106$23.3M334,3801.1%
Vaxcyte Inc(PCVX)COM92243G108$20.8M450,0000.9%
Aquestive Therapeutics Inc(AQST)COM03843E104$17.0M2,625,0000.8%
Voyager Therapeutics Inc(VYGR)COM92915B106$15.7M4,002,8470.7%
CG Oncology Inc(CGON)CallCOM156944100$12.2M292,8000.6%
Atara Biotherapeutics Inc(ATRA)COM NEW046513206$10.4M573,1830.5%
Mannkind Corp(MNKD)COM NEW56400P706$9.4M1,660,0000.4%
Nuvation BIO Inc(NUVB/WS)*W EXP 02/10/20267080N119$8.6M963,3330.4%
Evolus Inc(EOLS)COM30052C107$4.5M675,0000.2%
Ibio Inc(IBIO)COM NEW451033708$4.3M2,228,0000.2%
Mereo Biopharma Group PLC(MREO)SPON ADS589492107$3.3M7,856,4660.1%
Camp4 Therapeutics Corp(CAMP)COM13463J101$2.0M325,0000.1%
Xencor Inc(XNCR)CallCOM98401F105$1.0M67,5000.0%
Surrozen Inc(SRZNW)*W EXP 08/01/20386889P117$100.4K4,4440.0%