Itaú Unibanco updates material fact disclosure portal
Itaú Unibanco Holding S.A. filed a Form 6-K to announce an administrative change in how it discloses material information.
Rhea-AI Filing Summary
Itaú Unibanco Holding S.A. filed a Form 6-K to announce an administrative change in how it discloses material information. The company has replaced its news portal webpage for publishing material acts and facts and will now use the portal at https://mzgroup.com.br/fatos-relevantes/ with free public access.
The company also resubmitted its Registration Form (“Formulário Cadastral”) and its Policy for the Disclosure of Material Acts or Facts on the same date so they reflect the updated news portal. Investor relations contact details remain available through the Itaú website.
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Key Figures
Effective date: May 08, 2026
CVM Resolution reference: No. 44/21
2 metrics
Effective date
May 08, 2026
Date of material fact notice and document resubmission
CVM Resolution reference
No. 44/21
Regulation governing disclosure of material acts and facts
Key Terms
Material Fact, CVM Resolution No. 44/21, Policy for the Disclosure of Material Acts or Facts
3 terms
Material Fact financial
"Material Fact Itaú Unibanco Holding S.A. (“Company”) informs its shareholders"
Information or an event that a reasonable investor would consider important when deciding to buy, sell or hold a security; it changes the expected value, risk, or outlook of an investment. Regulators treat material facts as disclosures that companies must share publicly because they can affect market prices, similar to a key ingredient in a recipe that determines the final taste. It matters to investors because material facts can change the basis for an investment decision and move trading activity and prices.
CVM Resolution No. 44/21 regulatory
"pursuant to Article 3, Paragraph 4, item II, of CVM Resolution No. 44/21"
Policy for the Disclosure of Material Acts or Facts regulatory
"its Policy for the Disclosure of Material Acts or Facts were resubmitted on this date"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did Itaú Unibanco (ITUB) announce in this Form 6-K?
Itaú Unibanco announced an update to the news portal it uses to disclose material acts and facts. The bank will now publish such disclosures via the MZ Group portal, aligning its official documents and policies with this new communication channel.
Which portal will Itaú Unibanco (ITUB) use for material fact disclosures?
The company will disclose material acts and facts through the portal https://mzgroup.com.br/fatos-relevantes/. This section is available for free access, providing shareholders and the market with centralized online access to official material information published by the bank.
How did Itaú Unibanco (ITUB) update its governance documents?
Itaú Unibanco resubmitted its Registration Form (“Formulário Cadastral”) and its Policy for the Disclosure of Material Acts or Facts. These documents were updated to reflect the change in the news portal used for public disclosure of material information required by regulation.
What regulation does Itaú Unibanco (ITUB) reference in this material fact?
The company cites Article 3, Paragraph 4, item II of CVM Resolution No. 44/21. This Brazilian securities regulation governs how listed companies must disclose material acts and facts to the market, guiding Itaú Unibanco’s communication practices and document updates.
How can investors contact Itaú Unibanco (ITUB) investor relations?
Investors can visit www.itau.com.br/investor-relations and follow Menu > Investor Services > Contact IR. This path offers a direct communication channel with the Investor Relations Officer for questions about disclosures, governance documents, or other investor-related information.
AI-generated analysis. How Rhea-AI works. Not financial advice.
| UNITED STATES | |||||||||||
| SECURITIES AND EXCHANGE COMMISSION | |||||||||||
| Washington, D.C. 20549 | |||||||||||
| FORM 6-K | |||||||||||
| Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 | |||||||||||
| For the month of May, 2026 | |||||||||||
| 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 (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 - Material Fact: News Portal Change | ||||||||||
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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 behalf by the undersigned, thereunto duly authorized. | ||||||||||||||
| Date: May 08, 2026. | ||||||||||||||
Itaú Unibanco Holding S.A. By: /s/ Gustavo Lopes Rodrigues Name: Gustavo Lopes Rodrigues Title: Investor Relations Officer. | ||||||||||||||
Material Fact Itaú Unibanco Holding S.A. (“Company”) informs its shareholders and the market in general, pursuant to Article 3, Paragraph 4, item II, of CVM Resolution No. 44/21, that it has replaced the news portal webpage used for the disclosure of its material acts and facts. The Company will henceforth carry out such disclosures through the portal https://mzgroup.com.br/fatos- relevantes/, in a section available for free access. The Company’s Registration Form (“Formulário Cadastral”) and its Policy for the Disclosure of Material Acts or Facts were resubmitted on this date, reflecting the update of the news portal used for disclosures. If you have any questions, please visit www.itau.com.br/investor-relations and follow the path: Menu > Investor Services > Contact IR. São Paulo (SP), May 08, 2026. Gustavo Lopes Rodrigues Investor Relations Officer