As filed with the Securities and Exchange Commission on August 29, 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 ___________________________________ PROFUSA, INC. (Exact name of registrant as specified in its charter) ___________________________________ | Delaware | 3841 | 26-4589529 | | --- | --- | --- | | | (Primary Standard Industrial | (I.R.S. Employer | | | Classification Code ...