Banco BTG Pactual S.A. (BOVESPA:BPAC11) and Banco Santander (Brasil) S.A. (BOVESPA:SANB4) are among firms in talks to acquire Julius Bär Gruppe AG (SWX:BAER) ?s Brazil unit, according to people familiar with the matter. XP Inc. (NasdaqGS:XP), the biggest brokerage in Brazil, and Banco Safra S.A. are also at the negotiating table, the people said, asking not to be identified because the matter is private.