BlackRock, Inc. - Dec 31, 2024 SCHEDULE 13G/A Report for MERSANA THERAPEUTICS INC Common Stock (MRSN)

Filing Manager: BlackRock, Inc.
Reporting Manager: BlackRock, Inc.
Security: MERSANA THERAPEUTICS INC Common Stock
Symbol: MRSN
Shares outstanding: 115M shares
Disclosed Ownership: 9.21M shares
Ownership: 8%
Form type: SCHEDULE 13G/A
Date filed: 2/5/2025, 01:23 PM
Date of event: Dec 31, 2024
Next filing: Apr 17, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
BlackRock, Inc.	8%	9.21M	9.11M	0	Spencer Fleming	Managing Director