Fortress Biotech, Inc. - 02 Jan 2026 SCHEDULE 13D/A Report for Mustang Bio, Inc. Common Stock, $0.0001 Par Value (MBIO)

Filing Manager: Fortress Biotech, Inc.
Reporting Manager: Fortress Biotech, Inc.
Security: Mustang Bio, Inc. Common Stock, $0.0001 Par Value
Symbol: MBIO
Shares outstanding: 6,715,538 shares
Disclosed Ownership: 537,243 shares
Ownership: 8%
Form type: SCHEDULE 13D/A
Filing time: 05 Jan 2026, 17:00:56 UTC
Date of event: 02 Jan 2026
Previous filing: 01 Oct 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Fortress Biotech, Inc.	8%	537,243	537,243	0	/s/ Lindsay A. Rosenwald	Lindsay A. Rosenwald, M.D. / Chairman, President and Chief Executive Officer	0001429260