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 July, 2026
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 July 31, 2026
DATE, TIME AND PLACE: On July 31, 2026,
at 2:30 p.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,
Chairman. Bruno Garcia Rosa Carneiro, Secretary.
AGENDA: To resolve on: (i) the
exoneration of Mr. Nitin Prabhu from the position of coordinator of the Company’s Innovation and Technology Committee; (ii)
the election of Mr. Daniel Barriuso Rojo to the position of coordinator of the Company’s Innovation and Technology Committee; and
(iii) the ratification of the composition of the Company’s Innovation and Technology Committee.
RESOLUTIONS: After due clarification,
the present members of the Board of Directors, unanimously, APPROVED the election of the following members to the Advisory Committees
to the Board of Directors, pursuant to Article 17, XXI and XXIX, of the Company’s Bylaws:
(i)
the exoneration of Mr. Nitin Prabhu, an American citizen, married, company officer, holder of U.S. passport No. A37166580, from
the position of coordinator of the Company’s Innovation and Technology Committee;
(ii)
the election of the new coordinator
of the Innovation and Technology Committee, for a term valid until the assumption of office by the elected members to compose the respective
committee, at the first Board of Directors Meeting to be held after the 2027 Annual Shareholders’ Meeting, namely Mr. Daniel
Barriuso Rojo, Spanish citizen, married, computer engineer, holder of Spanish passport No. PAN468531; and
(iii) the ratification of the composition
of the Company’s Innovation and Technology Committee, all with a term valid until the first Meeting of the Board of Directors
to be held after the 2027 Ordinary Shareholders Meeting, namely: Daniel Barriuso Rojo, Spanish citizen, married, computer engineer,
holder of Spanish passport No. PAN468531, as Coordinator; Messrs. Deborah Stern Vieitas, Brazilian, single, public administrator
and journalist, holder of identity card RG no. 3.839.280-X SSP/SP, registered with the CPF/MF under no. Ede Ilson Viani, Brazilian,
married, accountant, holder of identity card RG no. 17.488.375 SSP/SP, registered with the CPF/MF under no. Eduardo Alvarez Garrido,
Spanish, married, administrator, holder of identity card RNM no. V346153M – CGPI/DIREX/PF and registered with the CPF/MF under
no. 228.866.408-83; Gilberto Duarte de Abreu Filho, Brazilian, married, engineer, holder of identity card RG no. 22.884.756-4
SSP/SP and registered with the CPF/MF under no. 252.311.448-86; Guilherme Horn, Brazilian, married, administrator, holder of identity
card RG no. 2031812-0 SSP/SP and registered with the CPF/MF under no. 924.866.147-53; and Marco Jose Miguel Bressan, Italian,
married, computer scientist, holder of the Italian passport YB4359162, as Members; all with business addresses at Avenida Presidente
Juscelino Kubitschek, No. 2041, Unit 281, Block A, Cond. Wtorre JK, Vila Nova Conceição, São Paulo/SP, Zip Code
04543-011.
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[Free English Translation]
ADJOURNMENT:
There being no further matters to be resolved, the Meeting was finalized, and these minutes have been prepared and sent to be electronically
signed by the attendees. Board: Deborah Stern Vieitas, Chairwoman. Bruno Carneiro, Secretary. Signatures: Mrs. Deborah Stern Vieitas –
Chairwoman; Mr. Javier Maldonado Trinchant – Vice Chairman; and Messrs. Antonio Carlos Quintella; Cristiana Almeida Pipponzi; Cristina
San Jose Brosa; Deborah Patricia Wright, Ede Ilson Viani, Pedro Augusto de Melo and Vanessa de Souza Lobato Barbosa – Directors.
São Paulo, July 31, 2026.
.
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 Carneiro
Secretary
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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: July 31, 2026
Banco Santander (Brasil) S.A.
By:
/S/ Reginaldo Antonio Ribeiro
Reginaldo Antonio Ribeiro
Officer without specific designation
By:
/S/ Carlos Ignacio Muñiz Gonzalez Blanch
Carlos Ignacio Muñiz Gonzalez Blanch
Vice – President Executive Officer