Exhibit 99.1

ITAÚ UNIBANCO HOLDING S.A. CNPJ. 60.872.504/0001-23 A Publicly Listed Company ANNUAL AND EXTRAORDINARY GENERAL STOCKHOLDERS’ MEETINGConsolidated summarized remote voting map According to CVM Instruction Nº 481/09, Itaú Unibanco Holding S.A. ("Company") discloses the summarized voting map that consolidates the voting instructions received from the underwriter and the voting instructions directly received by the Company for each item presented in the remote voting form on the matters submitted for the resolution of the Annual and Extraordinary Stockholders’ Meeting to be held on April 28, 2020, at 11 a.m., at the Company’s head office in the city of São Paulo, State of São Paulo, at Praça Alfredo Egydio de Souza Aranha, 100, Torre Olavo Setubal, Piso Itaú Unibanco, Parque Jabaquara, CEP 04344-902: ItemDescription - ordinary agendaCandidatesVotingNumber of shares% over total voting 1 Take cognizance of the Management Report, the Report of the Independent Auditors, the Opinion of the Fiscal Council, and the Summary of the Audit Committee Report, and examine, for resolution, the Financial Statements for the fiscal year ended December 31, 2019: Approve 4,564,183,998 99.98254 Reject - - Abstain 797,042 0.01746 2 Resolve on the allocation of net income for the fiscal year as detailed in the General Stockholders’ Meeting Manual available at: https://www.itau.com.br/relacoes-com- investidores/listgroup.aspx?idCanal=Sqjrl1eBRjH/MQgu2IlC3Q==&linguagem=en Approve 4,564,517,448 99.98984 Reject - - Abstain 463,592 0.01016 3 Fix the number of members who will comprise the Board of Directors in twelve (12) as proposed by the controlling shareholders: Approve 4,563,721,626 99.97241 Reject 795,822 0.01743 Abstain 463,592 0.01016 4 Do you want to request the adoption of the multiple vote process for the election of the Board of Directors, pursuant to Article 141 of Law No. 6,404 of 1976? Yes 2,206,899 0.04834 No 4,544,809,070 99.55811 Abstain 17,965,071 0.39354 5 Election of the board of directors by candidate - Total members to be elected: 12 Nomination of candidates to the Board of Directors (the stockholder may nominate as many candidates as the number of vacancies to be fulfilled in the general election. The votes indicated in this field will be disregarded if the shareholder holding voting shares also fills in the fields present in the separate election of a member of the board of directors and the separate election covered by these fields occurs). Alfredo Egydio Setubal Approve 4,562,636,449 99.95879 Reject 1,880,999 0.04121 Abstain - - Ana Lúcia de Mattos Barretto Villela Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - Fábio Colletti Barbosa (Independent member) Approve 4,564,517,448 100.00000 Reject - - Abstain - - Frederico Trajano Inácio (Independent member) Approve 4,564,517,448 100.00000 Reject - - Abstain - - Gustavo Jorge Laboissière Loyola (Independent member) Approve 4,562,636,449 99.95879 Reject 1,880,999 0.04121 Abstain - - João Moreira Salles Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - José Galló (Independent member) Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - Marco Ambrogio Crespi Bonomi (Independent member) Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - Pedro Luiz Bodin de Moraes (Independent member) Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - Pedro Moreira Salles Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - Ricardo Villela Marino Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - - Roberto Egydio Setubal Approve 4,564,433,348 99.99816 Reject 84,100 0.00184 Abstain - -

6 If the multiple voting process is adopted, do you want to distribute the vote adopted as the same percentage to the candidates? [If the shareholder chooses to abstain and the election occurs through the multiple vote process, his/her vote must be counted as abstention in the respective resolution of the meeting.] Yes 4,546,520,874 99.59561 No - - Abstain 18,460,166 0.40439 7 View of all candidates for the assignment of the % (percentage) of votes to be attributed Alfredo Egydio Setubal 3,022,244 7.92833 Ana Lúcia de Mattos Barretto Villela 3,201,934 8.39971 Fábio Colletti Barbosa (Independent member) 3,243,984 8.51002 Frederico Trajano Inácio (Independent member) 3,243,984 8.51002 Gustavo Jorge Laboissière Loyola (Independent member) 3,018,700 7.91903 João Moreira Salles 3,198,390 8.39041 José Galló (Independent member) 3,198,390 8.39041 Marco Ambrogio Crespi Bonomi (Independent member) 3,198,390 8.39041 Pedro Luiz Bodin de Moraes (Independent member) 3,198,390 8.39041 Pedro Moreira Salles 3,198,390 8.39041 Ricardo Villela Marino 3,198,390 8.39041 Roberto Egydio Setubal 3,198,390 8.39041 8 Minority stockholders with voting rights requesting a separate election of a member to the Board of Directors: Do you want to request a separate election of a member to the Board of Directors, in accordance with Article 141, paragraph 4, I, of Law No. 6,404 of 1976? (the shareholder can only fill in this field if he/she is the uninterrupted holder of the shares with which he/she votes during the 3 months immediately prior to the general meeting) (*) Yes 15,009,548 0.32914 No 413,795 0.00907 Abstain 4,544,828,484 99.66179 9 Minority stockholders with voting rights requesting a separate election of a member to the Board of Directors: If neither stockholders with voting rights nor preferred stockholders with no or restricted voting rights meet the quorum, respectively, as required by items I and II of paragraph 4 of Article 141 of Law No. 6,404 of 1976, do you want your vote to be added to the votes of preferred shares to elect, to the Board of Directors, the candidate with the majority of votes among all those who, as included in this remote voting form, run for election separately? (*) Yes 15,009,548 0.32914 No 3,795 0.00008 Abstain 4,545,238,484 99.67078 10 Preferred stockholders with no or restricted voting rights requesting a separate election of a member to the Board of Directors: Do you want to request a separate election of a member to the Board of Directors, in accordance to Article 141, paragraph 4 II of Law No. 6,404 of 1976? (the shareholder can only fill in this field if he/she is the uninterrupted holder of the shares with which he/she votes during the 3 months immediately prior to the general meeting) (*) Yes 948,976,855 65.65933 No 266,981,773 18.47236 Abstain 229,345,268 15.86831 11 Preferred stockholders with no or restricted voting rights requesting a separate election of a member to the Board of Directors: If neither voting stockholders nor preferred stockholders with no or restricted voting rights meet the quorum, respectively, as required by items I and II of paragraph 4 of Article 141 of Law No. 6,404 of 1976, do you want your vote to be added to the votes of voting shares to elect, to the Board of Directors, the candidate with the majority of votes among all those who, as included in this remote voting form, run for election separately? (*) Yes 1,046,697,473 72.42058 No 230,501,817 15.94833 Abstain 168,104,606 11.63109 12 Election of the fiscal council by candidate - Total members to be elected: 2 Nomination of candidates to the Fiscal Council (the stockholder may nominate as many candidates as the number of vacancies to be fulfilled in the general election) Alkimar Ribeiro Moura (effective) / João Costa (alternate) Approve 4,564,517,448 99.98984 Reject - - Abstain 463,592 0.01016 José Caruso Cruz Henriques (effective) / Reinaldo Guerreiro (alternate) Approve 4,564,517,448 99.98984 Reject - - Abstain 463,592 0.01016 13 Separate election of the fiscal council - Preferred shares Nomination of candidates to the fiscal council by stockholders holding preferred shares without voting or restricted voting rights without voting or restricted voting rights Eduardo Azevedo do Valle (effective) / Rene Guimarães Andrich (alternate) Approve 1,453,656,733 95.54175 Reject 9,816,452 0.64519 Abstain 58,015,234 3.81306 14 Resolve on the amount allocated to the overall compensation of the members of the Company’s Board of Officers and Board of Directors in the total amount of R$380,000,000.00: Approve 4,563,637,526 99.97057 Reject 879,922 0.01928 Abstain 463,592 0.01016 15 Resolve on the monthly individual compensation of R$15,000.00 to effective members and R$6,000.00 to alternate members of the Fiscal Council: Approve 4,564,107,448 99.98086 Reject 410,000 0.00898 Abstain 463,592 0.01016 Item Description - extraordinary agenda Voting Number of shares % over Candidates voting 16 Amend the Bylaws in order to include items 5.3. and 5.3.1. to provide for the possibility of the Company take out civil liability insurance (D&O) or entering into an indemnity contract in favor of its directors and officers: Approve 4,548,984,675 99.63065 Reject 15,000,976 0.32855 Abstain 1,862,827 0.04080 17 Consolidate the Bylaws, with the amendments mentioned above: Approve 4,548,984,675 99.63065 Reject 15,000,976 0.32855 Abstain 1,862,827 0.04080 (*) This refers to the ownership interest held uninterruptedly over the period of three months, at least, immediately prior to the General Stockholders’ Meeting, as provided for in paragraph 6 of Article 141 of Law No. 6,404/76. São Paulo-SP, April 27, 2020. ALEXSANDRO BROEDEL Group Executive Finance Director and Head of Investor Relations