Related Party Transaction between Itaú Unibanco Holding S.A. and Porto Seguro

Itaú Unibanco Holding S.A. has entered into an Operating Agreement with Porto Seguro S.A., Porto Seguro Seguros Del Uruguay S/A, and Azul Companhia de Seguros Gerais for the promotion and sale of insurance through Itaú Unibanco's channels. The agreement, which involves a monthly remuneration exceeding BRL 50 million, is considered by the company's management to be in compliance with commutative conditions and aligned with the strategic premises of both conglomerates. This transaction is recurring and is expected to amount to approximately BRL 441 million in remuneration for the fiscal year 2026. The company's management confirms that there was no participation from the counterparty in the decision-making process for this transaction.