Fortress Biotech, Inc. - 02 Jan 2026 Form 4 Insider Report for MUSTANG BIO, INC. (MBIO)

Role: 10%+ Owner
Signature: /s/ Samuel Berry, Attorney-in-Fact
Issuer symbol: MBIO
Transactions as of: 02 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 05 Jan 2026, 16:30:31 UTC
Previous filing: 01 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Fortress Biotech, Inc.	10%+ Owner	1111 KANE CONCOURSE SUITE 301, BAY HARBOR ISLANDS	/s/ Samuel Berry, Attorney-in-Fact	05 Jan 2026	0001429260

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MBIO	COMMON STOCK, PAR VALUE $0.0001	Award	$0	+278,385	+108%	$0.000000	536,577	02 Jan 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Reporting Person is entitled to an annual dividend on its Class A Preferred Stock equal to 2.5% of the Issuer's fully diluted outstanding capitalization on December 31. 278,385 shares were granted by the Issuer to the Reporting person for the 2025 annual dividend.