Initial Statement of Beneficial Ownership of Securities

This filing reports that Sergio Carbone, a director at BRBI BR Partners S.A. (BRBI), has initially acquired beneficial ownership of securities. The filing, dated March 31, 2026, pertains to the period ending March 18, 2026. Mr. Carbone, identified by CIK 0002124434, resides in Sao Paulo, Brazil. His relationship to the issuer is solely as a director, with no other ownership or officer roles indicated. The document specifies that there are no securities currently owned by the reporting owner.