Table of Contents As filed with the U.S. Securities and Exchange Commission on January 22, 2026. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Spring Valley Acquisition Corp. IV (Exact Name of Registrant as Specified in its Charter) Cayman Islands 6770 N/A (State or Other Jurisdiction of (Primary Standard Industrial (IRS Employer Incorporation or Organization) Classification Code Number) Identifi ...