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6-K 1 bsbr20251204_6k.htm 6-K

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 Publicly-held Company with Authorized Capital

BANCO SANTANDER (BRASIL) S.A.

CNPJ nº 90.400.888/0001-42

NIRE 35.300.332.067

NOTICE TO THE MARKET

BANCO SANTANDER (BRASIL) S.A. (“Santander Brasil” or “Company”) hereby informs its shareholders and the market in general that it has carried out the issuance of financial bills with a subordination clause (“Financial Bills”), the proceeds of which will be used to compose the Company’s Tier II Reference Equity (PR), in the total amount of BRL 2,362,800,000.00 (two billion three hundred sixty-two million eight hundred thousand Brazilian reais), in negotiations with private investors. The Financial Bills have a maturity term of 10 (ten) years, with a repurchase option starting in 2030, in accordance with the applicable regulation.

The Financial Bills are authorized to compose the Tier II Capital of the Company’s Reference Equity, with an impact on its Tier II capitalization ratio, pursuant to BCB Resolution No. 122, dated August 2, 2021.

São Paulo, December 04, 2025.

Gustavo Alejo Viviani

Investor Relations Officer

BANCO SANTANDER (BRASIL) S.A.

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 4, 2025

Banco Santander (Brasil) S.A.

By:	/S/ Reginaldo Antonio Ribeiro
	Reginaldo Antonio Ribeiro Officer without specific designation



By:	/S/ Gustavo Alejo Viviani
	Gustavo Alejo Viviani Vice - President Executive Officer