EcoR1 Capital, LLC - 10%+ Owner at Mersana Therapeutics, Inc.

Insider Transactions and Holdings

Entity Type
Company
Role
10%+ Owner
Issuer Symbol
MRSN on Nasdaq
All Insider Reports
All Insider Reports

There are no Buy or Sell transactions made by EcoR1 Capital, LLC since 04 Feb 2025

Holdings reported by EcoR1 Capital, LLC for Mersana Therapeutics, Inc.

Security Num Shares Value Price $ Transaction Date Ownership Underlying Class Underlying Amount
Common Stock 11,328,000 $21,523,200 $1.90 19 Dec 2024 Indirect
Pre-Funded Warrants 8,036,688 19 Dec 2024 Indirect Common Stock

Transactions reported by EcoR1 Capital, LLC for Mersana Therapeutics, Inc.

Sym Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.