account_balance
Investment manager · 13F filer · SEC CIK 1587114
EcoR1 Capital, LLC
Reported value$2.02Bas of Jun 30, 2026
Positions31 9 new, 7 sold out
Top 10 weight88.0%ZYME alone is 30%
FiledAug 1445 days after quarter end
Portfolio · as of Jun 30, 2026
Where the money is
New or addedTrimmedHeld
ZYMEZymeworks Inc
29.8%
ANABAnaptysbio Inc
26.4%
AKTSAktis Oncology Inc
7.7%
CGONCg Oncology Inc
5.3%Added +36%
ETONEton Pharmaceuticals Inc
3.9%
CRSPCrispr Therapeutics AG
3.8%
ORICOric Pharmaceuticals Inc
3.6%
TRAXFirst Tracks Biotherapeutics
3.2%New
LKFT2.5%NGNENeurogene Inc
2.0%
STOK1.2%FULC1.2%ZYMEZymeworks Inc
29.8%
ANABAnaptysbio Inc
26.4%
AKTSAktis Oncology Inc
7.7%
CGON5.3%ETON3.9%CRSP3.8%ORIC3.6%TRAX3.2%LKFTNGNEFULCBoxes show the top 12 stocks, sized against each other. The bar above shows how much of the fund they are. 13F only covers US-listed stocks, so foreign holdings and short positions are missing.
Show the top 12 as a list
ZYME Zymeworks Inc 29.8% HeldANAB Anaptysbio Inc 26.4% HeldAKTS Aktis Oncology Inc 7.7% HeldCGON Cg Oncology Inc 5.3% Added +36%ETON Eton Pharmaceuticals Inc 3.9% HeldCRSP Crispr Therapeutics AG 3.8% HeldORIC Oric Pharmaceuticals Inc 3.6% HeldTRAX First Tracks Biotherapeutics 3.2% NewLKFT Lakefront Biotherapeutics NV 2.5% HeldNGNE Neurogene Inc 2.0% HeldSTOK Stoke Therapeutics Inc 1.2% Added +635%FULC Fulcrum Therapeutics Inc 1.2% New
What changed