HCM IV Acquisition(HACQU) - Prospectus

As filed with the Securities and Exchange Commission on November 6, 2025 Registration No. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________________ FORM S-1 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 _________________________ HCM IV Acquisition Corp. (Exact name of registrant as specified in its charter) _________________________ | Cayman Islands | 6770 | 98-1883478 | | --- | --- | --- | | (State or other jurisdiction of | (Primary Standard Industrial | (I.R.S. ...