# EDGAR Filing Document

**Accession Number:** 0001132597
**File Stem:** 0001132597-26-000128
**Filing Date:** 2026-4
**Character Count:** 8975
**Document Hash:** 771c6d868f5340b3f7bac59630e1b06e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001132597-26-000128.hdr.sgml**: 20260429

**ACCESSION NUMBER**: 0001132597-26-000128

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20260428

**FILED AS OF DATE**: 20260429

**DATE AS OF CHANGE**: 20260429

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Itau Unibanco Holding S.A.
- **CENTRAL INDEX KEY:** 0001132597
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **STATE OF INCORPORATION:** D5
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15276
- **FILM NUMBER:** 26914187

**BUSINESS ADDRESS:**
- **STREET 1:** PC. ALFREDO EGYDIO DE SOUZA ARANHA, 100
- **STREET 2:** TORRE AE, 3 ANDAR, CEP 04344-902
- **CITY:** SAO PAULO
- **STATE:** D5
- **ZIP:** 00000
- **BUSINESS PHONE:** 55-11-5019-1723

**MAIL ADDRESS:**
- **STREET 1:** PC. ALFREDO EGYDIO DE SOUZA ARANHA, 100
- **STREET 2:** TORRE AE, 3 ANDAR, CEP 04344-902
- **CITY:** SAO PAULO
- **STATE:** D5
- **ZIP:** 00000

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Itau Unibanco Banco Multiplo S.A.
- **DATE OF NAME CHANGE:** 20090226

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BANCO ITAU HOLDING FINANCEIRA S A
- **DATE OF NAME CHANGE:** 20030319

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BANCO ITAU SA
- **DATE OF NAME CHANGE:** 20010117

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| | |
|:---|:---|
| **UNITED STATES** | **UNITED STATES** |
| **SECURITIES AND EXCHANGE COMMISSION** | **SECURITIES AND EXCHANGE COMMISSION** |
| **Washington, D.C. 20549** | **Washington, D.C. 20549** |
| **FORM 6-K** | **FORM 6-K** |
| &nbsp;&nbsp;**Report of Foreign Issuer<br>Pursuant to Rule 13a-16 or 15d-16<br>of the Securities Exchange Act of 1934** | &nbsp;&nbsp;**Report of Foreign Issuer<br>Pursuant to Rule 13a-16 or 15d-16<br>of the Securities Exchange Act of 1934** |
| &nbsp;&nbsp;**Report of Foreign Issuer<br>Pursuant to Rule 13a-16 or 15d-16<br>of the Securities Exchange Act of 1934** | &nbsp;&nbsp;**Report of Foreign Issuer<br>Pursuant to Rule 13a-16 or 15d-16<br>of the Securities Exchange Act of 1934** |
| &nbsp;&nbsp;**Report of Foreign Issuer<br>Pursuant to Rule 13a-16 or 15d-16<br>of the Securities Exchange Act of 1934** | &nbsp;&nbsp;**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 April, 2026** | **For the month of April, 2026** |
| **Comission File Number: 001-15276** | **Comission File Number: 001-15276** |
| **Itaú Unibanco Holding S.A.** | **Itaú Unibanco Holding S.A.** |
| (Exact name of registrant as specified in its charter) | (Exact name of registrant as specified in its charter) |
| **Itaú Unibanco Holding S.A.** | **Itaú Unibanco Holding S.A.** |
| (Translation of Registrant's Name into English) | (Translation of Registrant's Name into English) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Praça Alfredo Egydio de Souza Aranha, 100 - Torre Conceição** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Praça Alfredo Egydio de Souza Aranha, 100 - Torre Conceição** |
| &nbsp;&nbsp;&nbsp;**CEP 04344-902 São Paulo, SP, Brazil<br>(Address of principal executive office)** | &nbsp;&nbsp;&nbsp;**CEP 04344-902 São Paulo, SP, Brazil<br>(Address of principal executive office)** |
| &nbsp;&nbsp;&nbsp;**CEP 04344-902 São Paulo, SP, Brazil<br>(Address of principal executive office)** | &nbsp;&nbsp;&nbsp;**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. | 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 ☒ | &nbsp;&nbsp;&nbsp;&nbsp; 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): | 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 ☐ | &nbsp;&nbsp;&nbsp;&nbsp;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): | 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 ☐ | &nbsp;&nbsp;&nbsp;&nbsp;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. | 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 ☐ | &nbsp;&nbsp;&nbsp;&nbsp;No ☒ |
| If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): | If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): |
| 82– __________________ | 82– __________________ |

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**EXHIBIT INDEX**

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| | |
|:---|:---|
| **99.1** | <u>[Final Summarized Voting Map - Extraordinary General Stockholders' Meeting of April 28, 2026](finalsummarizedvotingmap.htm)</u> |

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| |
|:---|
| &nbsp;&nbsp;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, thereunto duly authorized. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Date: April 28, 2026. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Itaú Unibanco Holding S.A.**<br>By: /s/ Gustavo Lopes Rodrigues<br>Name: Gustavo Lopes Rodrigues<br>Title: Investor Relations Officer. |

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## Exhibit 99.1

![](finalsummarizedvotingmap001.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;Extraordinary General Stockholders' Meeng Final Summarized Voting Map According to CVM Resolution No. 81/22, Itaú Unibanco Holding S.A. ("Company") discloses the final summarized voting map related to the consolidation of remote voting instructions and of the votes casted at the Extraordinary General Stockholders' Meeting ("Meeting"), held exclusively online, on April 28, 2026, at 11:10 a.m, as presented below. São Paulo - SP, April 28, 2026. Gustavo Lopes Rodrigues Investor Relations Officer

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![](finalsummarizedvotingmap002.jpg)

Item Description Voting Number of shares % over total voting Approve 5,184,044,233 100.00% Reject 2,156 0.00% Abstain 125,025 0.00% Approve 5,184,042,488 100.00% Reject 3,102 0.00% Abstain 125,824 0.00% Approve 5,184,041,930 100.00% 3 Reject 10,196 0.00% Abstain 119,288 0.00% Approve 5,184,043,513 100.00% 4 Reject 10,207 0.00% Abstain 117,694 0.00% Approve 5,184,042,312 100.00% 5 Reject 10,072 0.00% Abstain 119,030 0.00% Approve 5,184,050,399 100.00% 6 Reject 10,346 0.00% Abstain 110,669 0.00% Approve 5,184,036,820 100.00% Reject 14,118 0.00% Abstain 120,476 0.00% Approve 5,184,050,618 100.00% Reject 1,349 0.00% Abstain 119,447 0.00% Consolidate the Bylaws to reflect the amendments mentioned in the preceding items:8 Amend the wording of item 9.1 of Article 9 of the Bylaws to modify the maximum number of members of the Board of Officers, so that it is now composed of five (5) to sixty (60) members: 7 2 Ratify the appointment and engagement of PricewaterhouseCoopers Auditores Independentes Ltda. - PwC as the specialized firm responsible for preparing the Appraisal Report on the book net worth of Banco Itaucard S.A. to be merged into the Company: Resolve upon the Appraisal Report, based on the balance sheet of Banco Itaucard S.A. as of December 31, 2025: Resolve upon the merger of Banco Itaucard S.A. into the Company, with no increase in the Companys capital stock, in accordance with the Protocol and Justification: Authorize the Companys management members, as provided for in its Bylaws, to perform all acts and sign all documents required for the implementation and formalization of the approved resolutions: Amend the wording of Article 3, caput, of the Bylaws, to reflect the new composition of the subscribed and paid-in capital, as resolved by the Board of Directors on November 27, 2025 and December 18, 2025 regarding the cancellation of shares and capital increase within the limit of the authorized capital: Final Summarized Voting Map 1 Resolve upon the "Protocol and Justification" which establishes the terms and conditions for the merger of Banco Itaucard S.A. into the Company, with the base date of December 31, 2025:

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