Form 4 Filing for Leonardo Mendes Cabral

This filing details a transaction by Leonardo Mendes Cabral, an officer of Banco Santander (Brasil) S.A., involving 20,000 units of SANB11. The transaction occurred on September 24, 2026, with a price of $5.68 per unit. Following this transaction, Mr. Cabral holds 112,571 units. The reported price is equivalent to R$29.44 per share, converted using an exchange rate of R$5.1789 per U.S.$1.00 as of the transaction date. The filing is made on Form 4 and signed by Mr. Cabral on September 28, 2026.