Mustang Bio, Inc. As filed with the Securities and Exchange Commission on December 11, 2023. Registration Statement No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 (Exact name of registrant as specified in its charter) (State or Other Jurisdiction of Incorporation or Organization) Delaware 2834 47-3828760 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 377 Planta ...