BIOGEN INC. - 21 Jul 2025 SCHEDULE 13D/A Report for Sage Therapeutics, Inc. Common Stock, par value $0.0001 per share (SAGE)

Filing Manager: BIOGEN INC.
Reporting Manager: Biogen Inc.
Security: Sage Therapeutics, Inc. Common Stock, par value $0.0001 per share
Symbol: SAGE
Shares outstanding: 62,414,730 shares
Disclosed Ownership: 6,241,473 shares
Ownership: 10%
Form type: SCHEDULE 13D/A
Filing time: 21 Jul 2025, 21:18:50 UTC
Date of event: 21 Jul 2025
Previous filing: 10 Jan 2025
Next filing: 30 Jul 2025
SEC: View on sec.gov

Reporting Managers (2)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Biogen Inc.	10%	6,241,473	0	6,241,473	/s/ Michael Dambach	Michael Dambach / Treasurer	0000875045
Biogen MA Inc.	10%	6,241,473	0	6,241,473	/s/ Michael Dambach	Michael Dambach / Treasurer