Fortress Biotech, Inc. - Sep 29, 2025 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: 6.47M shares
Disclosed Ownership: 259K shares
Ownership: 4%
Form type: SCHEDULE 13D/A
Date filed: 10/1/2025, 04:11 PM
Date of event: Sep 29, 2025
Previous filing: Apr 2, 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.	4%	259K	259K	0	/s/ Lindsay A. Rosenwald	Lindsay A. Rosenwald, M.D. / Chairman, President and Chief Executive Officer	0001429260