The Bank's related parties include, in addition to its subsidiaries, affiliates, and jointly-controlled entities, the key management personnel of the Bank and entities over which such key management personnel may exert significant influence.

Santander has a Related-Party Transactions Policy approved by the Board of Directors, designed to ensure that all transactions covered by the policy are conducted in the best interests of Banco Santander and its shareholders. This policy grants the Board of Directors the authority to approve certain transactions. Additionally, the established rules apply to all employees and administrators of Banco Santander and its subsidiaries.

Transactions and compensation for services involving related parties are conducted in the ordinary course of business and on arm's length terms, encompassing interest rates, terms, and guarantees, without entailing higher collection risks than usual or presenting any additional disadvantages.

a) Compensation of Key Management Personnel

For the period from January to December of 2025, management proposed a total remuneration for the administrators (Board of Directors and Executive Board) of up to R$600,000,000 (five hundred million reais), encompassing fixed, variable, and stock-based compensation. This proposal underwent consideration at the Ordinary General Meeting (OGM) held on April 25, 2025.

i) Long and short-term benefits

The Bank, in line with Banco Santander Spain and other subsidiaries globally within the Santander Group, maintains long-term compensation programs that are tied to the market performance of its share price, contingent upon the achievement of specified targets.

The table below presents the Salaries and Fees of the Board of Directors and Executive Management:

Additionally, in the fiscal year ended December 31, 2025, charges were collected on management remuneration in the amount of R$39,873 (2024 - R$43,124 and 2023 - R$40,863).

ii) Contract termination

The termination of the employment agreement with Administrators, due to non-compliance with obligations or at the initiative of the contracted party, does not confer any right to financial compensation, and their accrued benefits will be discontinued.

b) Credit operations

The Bank and its subsidiaries may carry out credit operations and other transactions with related parties, in accordance with applicable laws and regulations, in particular articles 6 and 7 of CMN Resolution No. 4,693/18 and article 34 of the "Brazilian Corporations Law", as well as in compliance with Santander's Policy on Transactions with Related Parties, published on the Investor Relations website.

Such transactions shall be concluded at market values, terms and rates in effect on the date of contracting, under conditions of commutativity, and shall involve, among others, the following related parties:

(1) their controlling shareholders, whether natural or legal persons, as defined in article 116 of the Brazilian Corporations Law;

(2) its directors and members of statutory or contractual bodies;

(3) with regard to the persons mentioned in items (i) and (ii), their spouse, partner and relatives, by blood or affinity, up to the second degree;

(4) natural persons with a qualified shareholding in its capital;

(5) legal entities with qualified equity participation in their capital;

(6) legal entities in whose capital, directly or indirectly, a Santander Financial Institution holds a qualified equity stake;

(7) legal entities in which a Santander Financial Institution has effective operational control or a preponderant influence in decision-making, regardless of shareholding; and

(8) legal entities that have a director or member of the Board of Directors in common with a Santander Financial Institution.

c) Ownership interest

The table below presents the direct equity interests (ordinary and preference shares) as of December 31, 2025, December 2024 and 2023.

d) Related-party transactions

The following table presents the transactions that occurred between the group's companies: