Archimedes Tech SPAC Partners III(ARCIU) - Prospectus(update)

Table of Contents As filed with the U.S. Securities and Exchange Commission on January 20, 2026. Registration No. 333-292419 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 2 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Archimedes Tech SPAC Partners III Co. (Exact name of registrant as specified in its charter) Cayman Islands 6770 N/A (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Nu ...