Company: MBIO
Filing Date: 2025-12-03
Form Type: DEF 14A
Source: 0001104659-25-118122
Chunk: 60

Company: MUSTANG BIO, INC.
Filing Date: 2025-12-03
Form: DEF 14A
Chunk 60
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 made by us under the Securities Act or the Exchange Act, except to the extent that we specifically incorporate such information by reference. Our Annual Report on Form 10-K for the year ended December 31, 2024, delivered to you together with this proxy statement, is hereby incorporated by reference.

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APPENDIX A AMENDMENT NO. 3 TO THE MUSTANG BIO, INC. 2019 EMPLOYEE STOCK PURCHASE PLAN This amendment (the “Amendment”) to the Mustang Bio, Inc. 2019 Employee Stock Purchase Plan, as amended (the “Plan”), is hereby adopted this __ day of December, 2025, by the Board of Directors (the “Board”) of Mustang Bio, Inc. (the “Company”). WITNESETH : WHEREAS , the Company adopted the Plan for the purposes set forth therein; and WHEREAS , pursuant to Section 21 of the Plan, the Board has the right to amend the Plan with respect to certain matters, provided that any material increase in the number of Shares available under the Plan shall be subject to stockholder approval; and WHEREAS , the Board has approved and authorized this Amendment to the Plan and has recommended that the stockholders of the Company approve this Amendment; NOW, THEREFORE, BE IT RESOLVED , that the Plan is hereby amended, subject to and effective as of the date of stockholder approval hereof, in the following particulars:

| 1. | Section 3 of the Plan is hereby amended by increasing the share references in such section from 9,333 to 259,333, so that such section reads in its entirety as follows: |

“3. Share Reserve. The maximum number of shares which may be issued under the Plan shall be 259,333 shares of Mustang’s authorized but unissued common stock, $0.0001 par value (the “Shares”). In the event that any Purchase Right for any reason expires or is canceled or terminated, the Shares allocable to the unexercised portion of such Purchase Right may again be subjected to a Purchase Right.”

| 2. | Section 7(b) is hereby amended by increasing the Purchase Right from 100 to 10,000 so that such section reads in its entirety as follows: |

“(b) 10,000 Shares.”

| 3. | Except as specifically set forth herein, the terms of the Plan shall be and remain unchanged, and the Plan as amended shall remain in full force