6-K

UNITED STATESSECURITIES 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, 2023

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 2235Bloco A – Vila OlimpiaSão Paulo, SP 04543-011Federative 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

BANCO SANTANDER (BRASIL) S.A.

Public Company with Authorized Capital

Corporate Taxpayer ID (CNPJ/MF) No. 90.400.888/0001-42

Company Registration (NIRE) No. 35.300.332.067

Minutesof the Board of Directors Meeting held on December 26, 2023

DATE,TIME AND PLACE: On 12.26.2023, at 11h00 a.m., by teleconference, the Board of Directors of Banco Santander (Brasil) S.A. (“Company” or “Santander), met with the presence of all it’s members.

CALL NOTICE AND ATTENDANCE: The call notice was waived in view of the presence of all the member of the Board of Directors.

MEETING BOARD: Deborah Stern Vieitas, Chairman. Daniel Pareto, Secretary.

AGENDA: To resolve on the election of new Vice-President Executive Officer of the Company.

RESOLUTIONS: Made the necessary clarifications, the attending members of the Board of Directors unanimously Approved the election, for a complementary term of office, entering in force until the investiture of the elected people at the first Board of Directors’ Meeting being held after the 2025 Ordinary Shareholders’ Meeting, as a Vice-President Executive Officer, Mr. Franco Raul Rizza, Argentinian, married, banker, bearer of the Identity Card RNM nº. F9809392 CGPI/DIREX/PF, enrolled with the Individual Taxpayer Registry CPF/MF Nº. 719.445.771-73, with office at Avenida Presidente Juscelino Kubitschek, 2041 – CJ 281, Bloco A, Cond. W Torre JK, Vila Nova Conceição, CEP 04543-011, São Paulo/SP.

It remains recorded in the minute that: (i) the election approved above was recommended by the Company´s Nomination and Governance Committee; and (ii) the Officer just elected declare that he is not forbidden by law to perform the activities proper to his office and fulfill all the conditions set forth in Resolution CMN 4.970/2021, presenting the respective representations and authorizations required by the mentioned Resolution, and shall only take office of his respective office after authorization of their election by the Central Bank of Brazil.

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, President. Daniel Pareto, Secretary. Signatures: Mrs. Deborah Stern Vieitas – President; Mr. José Antonio Alvarez Alvarez – Vice President; and Messrs. Angel Santodomingo Martell, Cristiana Almeida Pipponzi, Deborah Patricia Wright, Ede Ilson Viani, José de Paiva Ferreira, José Garcia Cantera, Marília Artimonte Rocca, Mario Roberto Opice Leão and Pedro Augusto de Melo – Directors. São Paulo, December 26, 2023.

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.

Daniel Pareto

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 26, 2023