EcoR1 Capital, LLC Quant / Systematic

Location: San Francisco, CA

CIK: 0001587114 · Show all filings

Period: Q2 2026 (← Previous)

Filing Date: Aug 14, 2026

Total Value: $2.057B (100.0% shares, 0.0% debt)

Holdings (33)

ZYME ZYMEWORKS INC 29.2%
Value $600M Shares 22,970,388 Est. Cost Unrealized
ANAB ANAPTYSBIO INC 25.9%
Value $532M Shares 7,880,094 Est. Cost Unrealized
AKTS AKTIS ONCOLOGY INC 7.6%
Value $155M Shares 4,824,469 Est. Cost Unrealized
CGON CG ONCOLOGY INC 5.2%
Value $106M Shares 1,494,300 Est. Cost Unrealized
ETON ETON PHARMACEUTICALS INC 3.8%
Value $78.62M Shares 2,171,938 Est. Cost Unrealized
CRSP CRISPR THERAPEUTICS AG 3.7%
Value $75.77M Shares 1,389,276 Est. Cost Unrealized
ORIC ORIC PHARMACEUTICALS INC 3.5%
Value $72.87M Shares 6,728,116 Est. Cost Unrealized
TRAX FIRST TRACKS BIOTHERAPEUTICS 3.1%
Value $63.87M Shares 3,174,519 Est. Cost Unrealized
GLPG LAKEFRONT BIOTHERAPEUTICS NV 2.4%
Value $49.98M Shares 1,667,119 Est. Cost Unrealized
NGNE NEUROGENE INC 1.9%
Value $39.98M Shares 1,271,342 Est. Cost Unrealized
CGON CG ONCOLOGY INC 1.9%
Value $39.89M Shares 561,500 Est. Cost Unrealized
STOK STOKE THERAPEUTICS INC 1.2%
Value $24.05M Shares 735,000 Est. Cost Unrealized
FULC FULCRUM THERAPEUTICS INC 1.2%
Value $23.97M Shares 6,549,866 Est. Cost Unrealized
LEGN LEGEND BIOTECH CORP 1.1%
Value $23.1M Shares 800,000 Est. Cost Unrealized
BBOT BRIDGEBIO ONCOLOGY THERAPEUT 1.0%
Value $21.51M Shares 2,823,126 Est. Cost Unrealized
MBX MBX BIOSCIENCES INC 1.0%
Value $21.45M Shares 388,500 Est. Cost Unrealized
ZBIO ZENAS BIOPHARMA INC 1.0%
Value $20.04M Shares 789,500 Est. Cost Unrealized
ATRA ATARA BIOTHERAPEUTICS INC 0.9%
Value $17.82M Shares 1,552,000 Est. Cost Unrealized
RLAY RELAY THERAPEUTICS INC 0.6%
Value $13.06M Shares 697,948 Est. Cost Unrealized
AURA AURA BIOSCIENCES INC 0.6%
Value $11.83M Shares 1,666,667 Est. Cost Unrealized
ODTX ODYSSEY THERAPEUTICS INC 0.5%
Value $10.39M Shares 555,555 Est. Cost Unrealized
EIKN EIKON THERAPEUTICS INC 0.5%
Value $9.561M Shares 732,606 Est. Cost Unrealized
PHVS PHARVARIS N V 0.4%
Value $8.126M Shares 235,000 Est. Cost Unrealized
ZURA ZURA BIO LTD 0.3%
Value $6.96M Shares 1,179,715 Est. Cost Unrealized
PHAT PHATHOM PHARMACEUTICALS INC 0.3%
Value $6.781M Shares 625,000 Est. Cost Unrealized
NRIX NURIX THERAPEUTICS INC 0.3%
Value $6.55M Shares 270,000 Est. Cost Unrealized
ERAS ERASCA INC 0.3%
Value $6.046M Shares 330,000 Est. Cost Unrealized
ELOX ELOXX PHARMACEUTICALS INC 0.3%
Value $5.552M Shares 400,000 Est. Cost Unrealized
AARD AARDVARK THERAPEUTICS INC 0.1%
Value $2.282M Shares 396,194 Est. Cost Unrealized
HLXC HELIX ACQUISITION CORP III USD 0.1%
Value $2.128M Shares 200,000 Est. Cost Unrealized
MREO MEREO BIOPHARMA GROUP PLC 0.0%
Value $318K Shares 1,000,000 Est. Cost Unrealized
SRZNW SURROZEN INC 0.0%
Value $115K Shares 4,444 Est. Cost Unrealized
AARD AARDVARK THERAPEUTICS INC 0.0%
Value $84,672 Shares 14,700 Est. Cost Unrealized