Insidervault
LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
Reporting ownerCIK 0001587114

EcoR1 Capital, LLC

14 transactions in 3 companies, from January 12, 2026 to May 7, 2026.

Transactions
143 companies
Bought · P
$44.7Mopen market
Sold · S
$65.0Mopen market
Net
−$20.3Mnet selling

By company

Where this insider traded.

CompanyTickerTradesBoughtSold
Aktis Oncology, Inc.AKTS12$40.0M—
Atara Biotherapeutics, Inc.ATRA1$4.7M—
First Tracks Biotherapeutics, Inc.TRAX1—$65.0M

All transactions

14 in total, newest filings first.

CompanyTickerInsiderDateCodeSharesPriceValue
Atara Biotherapeutics, Inc.ATRAEcoR1 Capital, LLC10%May 7P507,407$9.35$4.7M
First Tracks Biotherapeutics, Inc.TRAXEcoR1 Capital, LLC10%Apr 20S4,705,575$13.81$65.0M
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C86,222——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C965,190——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C102,500——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C2,397,500——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C488,891——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C997,299——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirDERIVJOINTJan 12C9,913,810——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirJOINTJan 12P144,443$18.00$2.6M
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirJOINTJan 12P2,077,779$18.00$37.4M
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirJOINTJan 12C128,506——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirJOINTJan 12C202,862——
Aktis Oncology, Inc.AKTSEcoR1 Capital, LLCDirJOINTJan 12C2,270,879——