TABLE OF CONTENTS As filed with the Securities and Exchange Commission on February 7, 2025. Registration No. 333-283020 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Amendment No. 5 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ARTIUS II ACQUISITION INC. Cayman Islands 6770 98-1802901 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 3 Columbus Circle, Suite 1609 New York, NY 10019 (212) 309-7668 (Address, includi ...