As filed with the U.S. Securities and Exchange Commission on January 7, 2025. Registration No. 333-281144 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ______________________ AMENDMENT NO. 4 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ______________________ Plum Acquisition Corp. IV (Exact Name of Registrant as Specified in its Charter) ______________________ | Cayman Islands | 6770 | 98-1795710 | | --- | --- | --- | | (State or Other Jurisdiction of | (Prim ...