Marcelo Kalim is co-founder and major shareholder of C6 Bank, one of the largest native digital banks in the country and one of the fastest growing in the world, with 25 million accounts in four years of operation. In 2021, JPMorgan acquired 40% of C6. Kalim was a major shareholder of BTG Pactual, the largest investment bank in Latin America, where he remained for two decades (first as Pactual), rising to CFO, co-CEO and chairman of the board.