REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 As filed with the Securities and Exchange Commission on February 3, 2025 Registration No. 333-282559 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 4 TO FORM S-1 SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Nevada 7374 14-1462255 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Num ...

As filed with the Securities and Exchange Commission on October 8, 2024 SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Nevada 7374 14-1462255 (I.R.S. Employer Identification Number) 325 Washington Avenue ...