IR
Superintel
OverviewMarketsWatchlist
© 2026 IR SuperintelMethodologyContact

EcoR1 Capital, LLC

Q1 2026 Holdings

Filed 2026-05-15 | 30 holdings | $2.4B | 13F-HR | View on SEC ↗ · Holdings Table ↗

Sign in to see sub-manager breakdown

IssuerClassCUSIPValue ↓Shares% Portfolio
Zymeworks Inc(ZYME)COM98985Y108$575.2M22,970,38824.4%
Anaptysbio Inc(ANAB)COM032724106$437.0M7,880,09418.5%
Jazz Pharmaceuticals PLC(JAZZ)SHS USDG50871105$322.6M1,706,46913.7%
Centessa Pharmaceuticals PLC(CNTA)SPONSORED ADS152309100$238.3M6,000,00010.1%
Crinetics Pharmaceuticals in(CRNX)COM22663K107$155.7M4,288,1206.6%
Aktis Oncology Inc(AKTS)COM ADDED01021M104$86.3M4,824,4693.7%
Oric Pharmaceuticals Inc(ORIC)COM68622P109$85.2M6,728,1163.6%
CG Oncology Inc(CGON)COM156944100$74.6M1,102,0003.2%
Crispr Therapeutics AG(CRSP)NAMEN AKTH17182108$66.1M1,389,2762.8%
Eton Pharmaceuticals Inc(ETON)COM29772L108$53.6M2,171,9382.3%
Galapagos NV(GLPG)SPON ADR36315X101$50.0M1,667,1192.1%
Xencor Inc(XNCR)COM98401F105$26.3M2,183,0001.1%
Neurogene Inc(NGNE)COM64135M105$25.6M1,271,3421.1%
Bridgebio Oncology Therapeut(BBOT)COM NEW107924102$25.3M2,823,1261.1%
MBX Biosciences Inc(MBX)COM55287L101$23.2M777,0001.0%
Relay Therapeutics Inc(RLAY)COM75943R102$19.0M1,904,7620.8%
Centessa Pharmaceuticals PLC(CNTA)CallSPONSORED ADS152309100$16.3M410,8000.7%
Zenas Biopharma Inc(ZBIO)COM98937L105$15.4M789,5000.7%
Erasca Inc(ERAS)COM29479A108$14.6M900,0000.6%
Eikon Therapeutics Inc(EIKN)COM ADDED282564103$7.8M732,6060.3%
Replimune Group Inc(REPL)COM76029N106$7.7M1,000,0000.3%
Zura BIO LTD(ZURA)CLASS A ORD SHSG9TY5A101$7.0M1,179,7150.3%
Phathom Pharmaceuticals Inc(PHAT)COM71722W107$6.9M625,0000.3%
Mereo Biopharma Group PLC(MREO)SPON ADS589492107$4.4M13,368,8550.2%
Stoke Therapeutics Inc(STOK)COM86150R107$3.3M100,0000.1%
Prelude Therapeutics Inc(PRLD)COM74065P101$3.2M947,0490.1%
Ibio Inc(IBIO)COM NEW451033708$3.0M1,583,0000.1%
Helix Acquisition Corp III USDCL A ORD SHS ADDEDG4444S107$2.0M200,0000.1%
Atara Biotherapeutics Inc(ATRA)COM NEW046513206$471.1K99,5930.0%
Surrozen Inc(SRZNW)*W EXP 08/01/20386889P117$129.5K4,4440.0%