As filed with the U.S. Securities and Exchange Commission on March 24, 2026. Registration No. 333-294067 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 _____________________________________ KPET Ultra Paceline Corporation (Exact Name of Registrant as Specified in its Charter) _____________________________________ Cayman Islands 6770 98-1888520 (State or Other Jur ...

As filed with the U.S. Securities and Exchange Commission on March 5, 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 _____________________________________ KPET Ultra Paceline Corporation (Exact Name of Registrant as Specified in its Charter) _____________________________________ Cayman Islands 6770 98-1888520 (State or Other Jurisdiction of Incorporation ...