Cartesian Growth Corp III Unit(CGCTU) - Prospectus(update)

As filed with the Securities and Exchange Commission on April 10, 2025. Registration No. 333-284565 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 CARTESIAN GROWTH CORPORATION III (Exact name of registrant as specified in its charter) Cayman Islands 6770 N/A (State or other jurisdiction of incorporation or organization) (Address, including zip code, and telephone number, including area code, of regis ...