X0609 4 2026-09-24 0 0001471055 Banco Santander (Brasil) S.A. BSBR 0002122613 Ishii Michele Soares true AV PRESIDENTE JUSCELINO KUBITSCHEK, 2041 CJ 281, BLOCO A, COND. WTORRE JK SAO PAULO SAO PAULO D5 04543-011 BRAZIL 0 1 0 0 Officer w/o Specific Desig 0 UNIT - SANB11 2026-09-24 2026-09-24 4 S 0 800 5.67 D 13303 D Equivalent to R$29.36 per share. Amounts presented were converted into U.S. dollars at the exchange rate of R$ 5.1789 per U.S.$1.00 as reported by Brazilian Central Bank on September 24, 2026. /s/ Michele Soares Ishii 2026-09-28