As filed with the Securities and Exchange Commission on July 31, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT Under THE SECURITIES ACT OF 1933 GREENIDGE GENERATION 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) Delaware 7374 86-1746728 (I.R.S. Employer Identification Number) 590 Plan ...