Schonfeld Strategic Advisors LLC - Sep 30, 2025 SCHEDULE 13G Report for Mersana Therapeutics, Inc. Common Stock, par value $0.0001 per share (MRSN)

Filing Manager: Schonfeld Strategic Advisors LLC
Reporting Manager: Schonfeld Strategic Advisors LLC
Security: Mersana Therapeutics, Inc. Common Stock, par value $0.0001 per share
Symbol: MRSN
Shares outstanding: 4.99M shares
Disclosed Ownership: 274K shares
Ownership: 5.48%
Form type: SCHEDULE 13G
Date filed: 11/14/2025, 04:15 PM
Date of event: Sep 30, 2025
Previous filing: Aug 14, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Schonfeld Strategic Advisors LLC	5.48%	274K	274K	0	/s/ Hung Luc	Hung Luc, Chief Compliance Officer