Company: MBIO
Filing Date: 2025-12-03
Form Type: DEF 14A
Source: 0001104659-25-118122
Chunk: 2

Company: MUSTANG BIO, INC.
Filing Date: 2025-12-03
Form: DEF 14A
Chunk 2
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000 shares; and |

| 5. | The transaction of any other business that may properly come before the Annual Meeting or any adjournment of the Annual Meeting. |

Only those stockholders of record as of the close of business on November 18, 2025, are entitled to vote at the Annual Meeting or any postponements or adjournments thereof. A complete list of stockholders entitled to vote at the Annual Meeting will be available for your inspection 10 days preceding our Annual Meeting, at our offices located at 95 Sawyer Road, Suite 110, Waltham, Massachusetts 02453, between the hours of 10:00 a.m. and 5:00 p.m., ET, each business day, or if we determine that a physical in-person inspection is not practicable, such list of stockholders may be made available electronically, upon request. You or your proxyholder may participate and vote by visiting www.virtualshareholdermeeting.com/MBIO2025 and using your 16-digit control number. Please note the technical requirements for virtual attendance at the Annual Meeting, as described in the enclosed Proxy Statement under the heading “Questions and Answers.” On January 15, 2025, we filed an amendment (the “Reverse Split Amendment”) to our Amended and Restated Certificate of Incorporation (our “Certificate of Incorporation”) with the Secretary of State of the State of Delaware to effect a 1-for-50 reverse stock split of our common stock (the “Reverse Stock Split”). As a result of the Reverse Stock Split, every 50 shares of common stock outstanding immediately prior to effectiveness of the Reverse Stock Split were combined and converted into one share of common stock without any change in the par value per share. The Reverse Stock Split became effective on January 15, 2025. No fractional shares were issued in connection with the Reverse Stock Split. Stockholders who would have otherwise been entitled to a fraction of one share of common stock as a result of the Reverse Stock Split instead received a proportional cash payment. All share and per share information in this proxy statement has been retroactively adjusted to give effect to the Reverse Stock Split, unless otherwise indicated.

IMPORTANT NOTICE REGARDING AVAILABILITY OF PROXY MATERIALS. THIS PROXY STATEMENT AND THE ENCLOSED PROXY CARD ARE BEING MAILED TO OUR STOCKHOLDERS ON OR ABOUT DECEMBER 3, 2025. In accordance with the rules of the Securities and Exchange Commission (the “SEC”), we are advising our