VANGUARD GROUP INC - 31 Mar 2025 SCHEDULE 13G/A Report for Mersana Therapeutics Inc Common Stock (MRSN)

Filing Manager
VANGUARD GROUP INC
Reporting Manager
The Vanguard Group
Symbol
MRSN
Shares outstanding
124,669,152 shares
Disclosed Ownership
8,377,767 shares
Ownership
6.72%
Form type
SCHEDULE 13G/A
Filing time
30 Apr 2025, 11:23:39 UTC
Date of event
31 Mar 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
The Vanguard Group 6.72% 8,377,767 0 69,658 Ashley Grim Head of Global Fund Administration