Schonfeld Strategic Advisors LLC - 30 Sep 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: 4,992,318 shares
Disclosed Ownership: 273,579 shares
Ownership: 5.5%
Form type: SCHEDULE 13G
Filing time: 14 Nov 2025, 16:15:33 UTC
Date of event: 30 Sep 2025
Previous filing: 14 Aug 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	5.5%	273,579	273,579	0	/s/ Hung Luc	Hung Luc, Chief Compliance Officer