As filed with the Securities and Exchange Commission on December 17, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Nukkleus Inc. (Exact name of registrant as specified in its charter) Delaware 6770 38-3912845 (State or jurisdiction of (Primary Standard Industrial (I.R.S. Employer incorporation or organization) Classification Code Number) Identification Number) 575 Fifth Ave., 14th Floor New ...