EX-99.1

Exhibit 99.1

LOGO

Investor Relations 1Q21 results and conference calls The conference calls to discuss the results of the first quarter of 2021 are already scheduled. We will publish the results on our website on May 3rd, after the closing of the stock markets in Brazil and the United States. We invite you to participate in our conference calls, on May 4th, at the following times: Portuguese 09:00 AM (EDT) 10:00 AM (Brasilia time) (55-11) 3181-5113 (55-11) (3181-8565) Access code: Itau Unibanco Access the webcast Register in advance Add on the calendar English 10:30 AM (EDT) 11:30 AM (Brasilia time) (55-11) 3181-5113 (Brazil) (1-412) 717-9223 (USA glcbal toll) (1-844) 763-8273 (USA toll free) (44-20) 319-84884 (UK) Access code: Itau Unibanco Access the webcast Register in advance Add on the calendar Presentation Milton Maluhy Filho President Alexsandro Broedel Chief Financial Officer (CFO) Renato Lulia Jacob Group Head of Investor Relations and Market Intelligence The conference calls will also be archived in audio format on the same website. To access the audio replay of the conference calls, which will be available until May 10th, 2021, dial (55 11) 3193-1012 or (55 11) 2820-4012. Access codes: 8193390# (call in Portuguese) and 1735790# (call in English). On the morning of the conference calls, the slide presentations will be available for viewing and downloading. If you have any technical issues, please contact Choruscall customer service at suporte@ccall.com.br. Itau.com.br/investor-relations IR Service Information about Itau Unibancc’s results and strategies Bookkepping Services Consult your stock position or update your registration individuals investor relations relacoes.investidores@itau-unibanco.com.br (55 11) 2794-3547 institucional investor relations iir@itau-unibanco.com.br (working days from 9AM to 6PM) (55 11) 3003 9285 – Capital and metropolitan region 0800 720 9285 – Other location SAC 0800 728 0728 complaints, cancellations and general information, every day, 24 hours a day. Ombudsman 0800 570 0011 if you are not satisfied with the solutions presented, contact the Ombudsman on working days from 9AM to 6PM Hearing / Speech Impaired 0800 722 1722 every day, 24 hours a day.