As filed with the Securities and Exchange Commission on July 23, 2024 Registration No. 333-280525 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 BioSig Technologies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 3845 26-4333375 (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification ...