Classification Code Number) As filed with the Securities and Exchange Commission on September 25, 2025 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 NLS PHARMACEUTICS LTD. (Exact name of registrant as specified in its charter) | Switzerland | 3841 | Not Applicable | | --- | --- | --- | | (State or other jurisdiction of | (Primary Standard Industrial | (I.R.S. Employer | incorporation or organizatio ...