UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE
SECURITIES EXCHANGE ACT OF 1934
For the month of December, 2025
Commission File Number: 001-34476
BANCO SANTANDER (BRASIL) S.A.
(Exact name of registrant as specified in its charter)
Avenida Presidente Juscelino Kubitschek, 2041 and 2235
Bloco A – Vila Olimpia
São Paulo, SP 04543-011
Federative Republic of Brazil
(Address of principal executive office)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: Form 20-F ___X___ Form 40-F _______
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):
Yes _______ No ___X____
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):
Yes _______ No ___X____
Indicate by check mark whether by furnishing the information contained in this Form, the Registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:
Yes _______ No ___X____
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): N/A

[Free English Translation]
BANCO SANTANDER (BRASIL) S.A.
Public Company with Authorized Capital
Corporate Taxpayer´s Registry No. 90.400.888/0001-42
Company Registry No. 35.300.332.067
Minutes
of the Board of Directors Meeting held on December 12, 2025
DATE, TIME AND PLACE: On December 12,
2025, at 9:30 a.m., by conference call, the Board of Directors of Banco Santander (Brasil) S.A. (“Company” or “Santander”)
have met, with the attendance of all of its members.
CALL NOTICE AND ATTENDANCE: The call
was waived in view of the attendance of all members of the Board of Directors.
MEETING BOARD: Deborah Stern Vieitas,
Chairwoman. Bruno Garcia Rosa Carneiro, Secretary.
AGENDA: To resolve on the reelection
the Company's Ombudsman for a new term.
RESOLUTIONS: Made the necessary clarifications,
the attending members of the Board of Directors unanimously approved, in accordance with article 17, XX, of the Company’s Bylaws,
the appointment of Mrs. Adriana Cristina Papafilipakis Grazian, Brazilian, married, laywer, holder of Identity Card RG nº
9530186 SSP/SP, enrolled with the CPF/MF under nº 115.731.448-19, with office at Avenida Presidente Juscelino Kubitschek, 2041 –
CJ 281, Bloco A, Cond. W Torre JK, Vila Nova Conceição, CEP 04543-011, for the role of Ombudsman of the Company,
for a new term of 1 (one) year starting on the date hereof.
The appointment
of Mrs. Adriana Cristina Papafilipakis Grazian was favourably recommended by the Nomination
and Governance Committee, according to the meeting held on December 10, 2025.
ADJOURNMENT:
There being no further matters to be resolved, the Meeting was finalized, and these minutes have been prepared and send to be electronically
signed by the attendees. Board: Deborah Stern Vieitas, Chairwoman. Bruno Garcia Rosa Carneiro, Secretary. Signatures: Mrs. Deborah Stern
Vieitas – Chairwoman; Mr. Javier Maldonado Trinchant – Vice Chairman; and Messrs. Cristiana Almeida Pipponzi; Cristina San
Jose Brosa; Deborah Patricia Wright, Ede Ilson Viani, José de Paiva Ferreira, Mario Roberto Opice Leão, Nitin Prabhu, Pedro
Augusto de Melo and Vanessa de Souza Lobato Barbosa – Directors. São Paulo, December 12, 2025.
I certify that this is a true transcript of the
minutes recorded in the Minutes of the Board of Directors Meetings Book of the Company.
Bruno Garcia Rosa Carneiro
Secretary
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.
Date: December 15, 2025
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Banco Santander (Brasil) S.A. |
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By: |
/S/ Reginaldo Antonio Ribeiro
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Reginaldo Antonio Ribeiro Officer without specific designation
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By: |
/S/ Gustavo Alejo Viviani
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Gustavo Alejo Viviani Vice - President Executive Officer
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