ITUB 6-K
Itau Unibanco Holding S.A. (ITUB)
| UNITED STATES | ||
|---|---|---|
| SECURITIES AND EXCHANGE COMMISSION | ||
| Washington, D.C. 20549 | ||
| FORM 6-K | ||
| Report of Foreign Issuer<br>Pursuant to Rule 13a-16 or 15d-16<br>of the Securities Exchange Act of 1934 | ||
| For the month of November, 2025 | ||
| Comission File Number: 001-15276 | ||
| Itaú Unibanco Holding S.A. | ||
| (Exact name of registrant as specified in its charter) | ||
| Itaú Unibanco Holding S.A. | ||
| (Translation of Registrant’s Name into English) | ||
| Praça Alfredo Egydio de Souza Aranha, 100 - Torre Conceição | ||
| CEP 04344-902 São Paulo, SP, Brazil<br>(Address of principal executive office) | ||
| Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. | ||
| Form 20-F ☒ | 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 ☒ | |
| 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 ☒ | |
| Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. | ||
| Yes ☐ | No ☒ | |
| If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): | ||
| 82– __________________ |
EXHIBIT INDEX
| 99.1 | ITAÚ UNIBANCO - ANNOUNCEMENT TO THE MARKET - TIER 2 SUBORDINATED FINANCIAL BILLS |
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| Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its |
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| behalf by the undersigned, thereunto duly authorized. |
| Date: November 11, 2025. |
| Itaú Unibanco Holding S.A.<br><br>By: /s/ Gustavo Lopes Rodrigues<br><br>Name: Gustavo Lopes Rodrigues<br><br>Title: Investor Relations Officer. |
comunicadoaomercado_letr
Announcement to the Market Tier 2 Subordinated Financial Bills Itaú Unibanco Holding S.A. (“Company”) informs its shareholders and the market that, on November 13th, 16th, 18th, 19th, 24th and December 2nd, 20251, it will exercise the option to repurchase all of its Tier 2 Subordinated Financial Bills (“Financial Bills”), indexed to the DI rate, issued by the Company in the period between November 12th and December 2nd, 2020 and with maturities in November and December 2030, respectively, totaling R$3.6 billion. The estimated impact of the repurchase of Financial Bills on the Company’s Tier 2 capital ratio is approximately 20 basis points2. São Paulo (SP), November 11, 2025. Gustavo Lopes Rodrigues Investor Relations Officer 1 Or on the following business day. 2 Calculated on the capital base as of September 30, 2025.