As filed with the U.S. Securities and Exchange Commission on December 19, 2025. Registration No. 333-291966 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _______________________________ AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 _______________________________ Art Technology Acquisition Corp. (Exact name of registrant as specified in its charter) _______________________________ Cayman Islands 6770 98-1881297 (State or other jurisdiction of i ...

As filed with the U.S. Securities and Exchange Commission on December 5, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 _______________________________ Art Technology Acquisition Corp. _______________________________ Approximate date of commencement of proposed sale to the public: As soon as practicable after the effective date of this registration statement. If any of the securities being r ...