noticetoshareholders

Notice to Shareholders Payment of Interest on Capital (IoC) ITAÚ UNIBANCO HOLDING S.A. (“Company”) hereby informs its shareholders that it has updated the gross amount of the monthly Interest on Equity for fiscal year 2026 disclosed in the Shareholders’ Notice of December 9, 2025. This adjustment results from the Supplementary Law No. 224/2025, effective as of January 1, 2026, which changed the Withholding Income Tax (“IRRF”) rate on IoC from 15% to 17.5%. The Company further informs that the net amount of BRL 0.015 per share1 will remain unchanged for the monthly IoC payments related to 2026 fiscal year. Consequently, the gross amount is now BRL 0.018182 per share, except for corporate shareholders that have proved exempt or immune from taxation, as provided by law. The schedule for monthly IoC payments remains unchanged, as detailed below: Base period Base date (last trading day at B3) Credit to specific account2 Payment January 12/30/2025 01/29/2026 02/02/2026 February 01/30/2026 02/26/2026 03/02/2026 March 02/27/2026 03/30/2026 04/01/2026 April 03/31/2026 04/29/2026 05/04/2026 May 04/30/2026 05/28/2026 06/01/2026 June 05/29/2026 06/29/2026 07/01/2026 July 06/30/2026 07/30/2026 08/03/2026 August 07/31/2026 08/28/2026 09/01/2026 September 08/31/2026 09/29/2026 10/01/2026 October 09/30/2026 10/29/2026 11/03/2026 November 10/30/2026 11/27/2026 12/01/2026 December 11/30/2026 12/17/2026 01/04/2027 For further information, please visit www.itau.com.br/investor-relations as follows: Menu > Investor Services > Contact IR. São Paulo (SP), January 26, 2026. Gustavo Lopes Rodrigues Investor Relations Officer 1 The amounts paid per share as interest on capital are the same for common (ITUB3) and preferred (ITUB4) shares. 2 The date of the credit to specific account is used to calculate VAT (PIS, COFINS, Corporate Income Tax and Social Contribution Tax).