Exhibit 99.1 ITAÚ UNIBANCO HOLDING S.A. CNPJ. 60.872.504/0001-23 A Publicly Listed Company ANNUAL GENERAL STOCKHOLDERS’ MEETING Final summarized voting map Pursuant to CVM Instruction No. 481/09, Itaú Unibanco Holding S.A. ( Company ) discloses the final summarized voting map related to the consolidation of voting instructions given by underwriters and of voting instructions given directly by the Company for each item presented in the remote voting form, about the matters submitted for resolution at its Annual General Stockholders' Meeting held on April 24, 2019 at 11:00 a.m. 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, is presented below: Number of % over total Item Description Candidates Voting shares voting Take cognizance of the Management Report, the Report of the Independent Approve 4,574,887,973 99.9945 Auditors, the Opinion of the Fiscal Council, and the Summary of the Audit 1 Reject 21 0.0000 Committee Report, and examine, for resolution, the Financial Statements for the Abstain 251,604 0.0055 fiscal year ended December 31, 2018: Approve 4,574,286,228 99.9813 Resolve on the allocation of net income for the fiscal year as detailed in the General Stockholders’ Meeting Manual available at: 2 Reject 21 0.0000 https://www.itau.com.br/relacoes-com-investidores/ listgroup.aspx?idCanal=Sqjrl1eBRjH/MQgu2IlC3Q==&linguagem=en Abstain 853,349 0.0187 Approve 4,574,214,894 99.9798 Fix the number of members who will comprise the Board of Directors in eleven 3 Reject 71,355 0.0016 (11) as proposed by the controlling shareholders: Abstain 853,349 0.0187 Yes 2,160,728 14.8334 Do you want to request the adoption of the multiple vote process for the 4 election of the Board of Directors, pursuant to Article 141 of Law No. 6,404 of No 8,054,061 55.2910 1976? Abstain 4,351,898 29.8757 Approve 4,573,932,165 99.9736 Alfredo Egydio Setubal Reject 146,763 0.0032 Abstain 1,060,670 0.0232 Approve 4,574,033,378 99.9758 Ana Lúcia de Mattos Barretto Villela Reject 45,550 0.0010 Abstain 1,060,670 0.0232 Approve 4,574,078,828 99.9768 Fábio Colletti Barbosa (Independent Reject 100 0.0000 member) Abstain 1,060,670 0.0232 Approve 4,574,007,473 99.9753 Gustavo Jorge Laboissière Loyola Reject - - (Independent member) Abstain 1,132,125 0.0247 Approve 4,574,007,473 99.9753 João Moreira Salles Reject 100 0.0000 Election of the Board of Directors by candidate - Total members to be elected: Abstain 1,132,025 0.0247 11 Approve 4,574,038,928 99.9759 Nomination of candidates to the Board of Directors (the stockholder may 5 José Galló (Independent member) Reject 39,900 0.0009 nominate as many candidates as the number of vacancies to be fulfilled in the Abstain 1,060,770 0.0232 general election) Approve 4,574,007,473 99.9753 Marco Ambrogio Crespi Bonomi Reject - - (Independent member) Abstain 1,132,125 0.0247 Approve 4,574,078,828 99.9768 Pedro Luiz Bodin de Moraes Reject - - (Independent member) Abstain 1,060,770 0.0232 Approve 4,574,078,928 99.9768 Pedro Moreira Salles Reject - - Abstain 1,060,670 0.0232 Approve 4,570,891,328 99.9071 Ricardo Villela Marino Reject 3,187,600 0.0697 Abstain 1,060,670 0.0232 Approve 4,574,078,828 99.9768 Roberto Egydio Setubal Reject - - Abstain 1,060,770 0.0232 Yes 6,855,973 47.0661 If the multiple voting process is adopted, do you want to distribute the vote 6 No - - adopted as the same percentage to the candidates? Abstain 7,710,714 52.9339 Alfredo Egydio Setubal 562,670 8.5249 Ana Lúcia de Mattos Barretto Villela 571,879 8.6644 Fábio Colletti Barbosa (Independent 571,872 8.6643 member) Gustavo Jorge Laboissière Loyola 571,872 8.6643 (Independent member) View of all candidates for the assignment of the % (percentage) of votes to be João Moreira Salles 571,879 8.6644 7 attributed José Galló (Independent member) 571,872 8.6643 Marco Ambrogio Crespi Bonomi 571,879 8.6644 (Independent member) Pedro Luiz Bodin de Moraes 572,221 8.6696 (Independent member) Pedro Moreira Salles 572,221 8.6696 Ricardo Villela Marino 572,221 8.6696 Roberto Egydio Setubal 572,221 8.6696Exhibit 99.1 ITAÚ UNIBANCO HOLDING S.A. CNPJ. 60.872.504/0001-23 A Publicly Listed Company ANNUAL GENERAL STOCKHOLDERS’ MEETING Final summarized voting map Pursuant to CVM Instruction No. 481/09, Itaú Unibanco Holding S.A. ( Company ) discloses the final summarized voting map related to the consolidation of voting instructions given by underwriters and of voting instructions given directly by the Company for each item presented in the remote voting form, about the matters submitted for resolution at its Annual General Stockholders' Meeting held on April 24, 2019 at 11:00 a.m. 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, is presented below: Number of % over total Item Description Candidates Voting shares voting Take cognizance of the Management Report, the Report of the Independent Approve 4,574,887,973 99.9945 Auditors, the Opinion of the Fiscal Council, and the Summary of the Audit 1 Reject 21 0.0000 Committee Report, and examine, for resolution, the Financial Statements for the Abstain 251,604 0.0055 fiscal year ended December 31, 2018: Approve 4,574,286,228 99.9813 Resolve on the allocation of net income for the fiscal year as detailed in the General Stockholders’ Meeting Manual available at: 2 Reject 21 0.0000 https://www.itau.com.br/relacoes-com-investidores/ listgroup.aspx?idCanal=Sqjrl1eBRjH/MQgu2IlC3Q==&linguagem=en Abstain 853,349 0.0187 Approve 4,574,214,894 99.9798 Fix the number of members who will comprise the Board of Directors in eleven 3 Reject 71,355 0.0016 (11) as proposed by the controlling shareholders: Abstain 853,349 0.0187 Yes 2,160,728 14.8334 Do you want to request the adoption of the multiple vote process for the 4 election of the Board of Directors, pursuant to Article 141 of Law No. 6,404 of No 8,054,061 55.2910 1976? Abstain 4,351,898 29.8757 Approve 4,573,932,165 99.9736 Alfredo Egydio Setubal Reject 146,763 0.0032 Abstain 1,060,670 0.0232 Approve 4,574,033,378 99.9758 Ana Lúcia de Mattos Barretto Villela Reject 45,550 0.0010 Abstain 1,060,670 0.0232 Approve 4,574,078,828 99.9768 Fábio Colletti Barbosa (Independent Reject 100 0.0000 member) Abstain 1,060,670 0.0232 Approve 4,574,007,473 99.9753 Gustavo Jorge Laboissière Loyola Reject - - (Independent member) Abstain 1,132,125 0.0247 Approve 4,574,007,473 99.9753 João Moreira Salles Reject 100 0.0000 Election of the Board of Directors by candidate - Total members to be elected: Abstain 1,132,025 0.0247 11 Approve 4,574,038,928 99.9759 Nomination of candidates to the Board of Directors (the stockholder may 5 José Galló (Independent member) Reject 39,900 0.0009 nominate as many candidates as the number of vacancies to be fulfilled in the Abstain 1,060,770 0.0232 general election) Approve 4,574,007,473 99.9753 Marco Ambrogio Crespi Bonomi Reject - - (Independent member) Abstain 1,132,125 0.0247 Approve 4,574,078,828 99.9768 Pedro Luiz Bodin de Moraes Reject - - (Independent member) Abstain 1,060,770 0.0232 Approve 4,574,078,928 99.9768 Pedro Moreira Salles Reject - - Abstain 1,060,670 0.0232 Approve 4,570,891,328 99.9071 Ricardo Villela Marino Reject 3,187,600 0.0697 Abstain 1,060,670 0.0232 Approve 4,574,078,828 99.9768 Roberto Egydio Setubal Reject - - Abstain 1,060,770 0.0232 Yes 6,855,973 47.0661 If the multiple voting process is adopted, do you want to distribute the vote 6 No - - adopted as the same percentage to the candidates? Abstain 7,710,714 52.9339 Alfredo Egydio Setubal 562,670 8.5249 Ana Lúcia de Mattos Barretto Villela 571,879 8.6644 Fábio Colletti Barbosa (Independent 571,872 8.6643 member) Gustavo Jorge Laboissière Loyola 571,872 8.6643 (Independent member) View of all candidates for the assignment of the % (percentage) of votes to be João Moreira Salles 571,879 8.6644 7 attributed José Galló (Independent member) 571,872 8.6643 Marco Ambrogio Crespi Bonomi 571,879 8.6644 (Independent member) Pedro Luiz Bodin de Moraes 572,221 8.6696 (Independent member) Pedro Moreira Salles 572,221 8.6696 Ricardo Villela Marino 572,221 8.6696 Roberto Egydio Setubal 572,221 8.6696

Minority stockholders with voting rights requesting a separate election of a Yes 1,000 0.0094 member to the Board of Directors: 8 Do you want to request a separate election of a member to the Board of No 1,310,613 12.3174 Directors, in accordance with Article 141, paragraph 4, I, of Law No. 6,404 of Abstain 9,328,768 87.6733 1976? (*) Minority stockholders with voting rights requesting a separate election of a Yes 8,654,863 81.3398 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 9 No 1,179,743 11.0874 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 Abstain 805,775 7.5728 included in this remote voting form, run for election separately? (*) Preferred stockholders with no or restricted voting rights requesting a separate Yes 266,945,033 36.0851 election of a member to the Board of Directors: 10 Do you want to request a separate election of a member to the Board of No 97,715,380 13.2090 Directors, in accordance to Article 141, paragraph 4 II of Law No. 6,404 of 1976? Abstain 375,105,218 50.7060 (*) Preferred stockholders with no or restricted voting rights requesting a separate Yes 610,487,446 82.5244 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 11 No 123,938,871 16.7538 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 Abstain 5,339,314 0.7218 remote voting form, run for election separately? (*) Approve 4,574,260,767 99.9808 Alkimar Ribeiro Moura (effective) / Reject - - Election of the Fiscal Council by candidate - Total members to be elected: 2 João Costa (substitute) Nomination of candidates to the Fiscal Council (the stockholder may nominate Abstain 878,831 0.0192 12 as many candidates as the number of vacancies to be fulfilled in the general José Caruso Cruz Henriques Approve 4,574,260,767 99.9808 election) (effective) / Reinaldo Guerreiro Reject - - (substitute) Abstain 878,831 0.0192 Approve 1,328,226,469 94.2843 Separate election of the Fiscal Council - Preferred shares Eduardo Azevedo do Valle 13 Nomination of candidates to the Fiscal Council by stockholders holding (effective) / Debora Santille Reject 6,971,052 0.4948 preferred shares without voting or restricted voting rights (substitute) Abstain 73,549,201 5.2209 Approve 4,565,324,795 99.7855 Resolve on the amount allocated to the overall compensation of the members of 14 the Company’s Board of Officers and Board of Directors in the total amount of Reject 1,953,307 0.0427 R$380,000,000.00: Abstain 7,861,496 0.1718 Approve 4,574,286,249 99.9813 Resolve on the monthly individual compensation of R$15,000.00 to effective 15 Reject 100 0.0000 members and R$6,000.00 to alternate members of the Fiscal Council: Abstain 853,249 0.0186 (*) 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 24, 2019. ALEXSANDRO BROEDEL Group Executive Finance Director and Head of Investor RelationsMinority stockholders with voting rights requesting a separate election of a Yes 1,000 0.0094 member to the Board of Directors: 8 Do you want to request a separate election of a member to the Board of No 1,310,613 12.3174 Directors, in accordance with Article 141, paragraph 4, I, of Law No. 6,404 of Abstain 9,328,768 87.6733 1976? (*) Minority stockholders with voting rights requesting a separate election of a Yes 8,654,863 81.3398 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 9 No 1,179,743 11.0874 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 Abstain 805,775 7.5728 included in this remote voting form, run for election separately? (*) Preferred stockholders with no or restricted voting rights requesting a separate Yes 266,945,033 36.0851 election of a member to the Board of Directors: 10 Do you want to request a separate election of a member to the Board of No 97,715,380 13.2090 Directors, in accordance to Article 141, paragraph 4 II of Law No. 6,404 of 1976? Abstain 375,105,218 50.7060 (*) Preferred stockholders with no or restricted voting rights requesting a separate Yes 610,487,446 82.5244 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 11 No 123,938,871 16.7538 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 Abstain 5,339,314 0.7218 remote voting form, run for election separately? (*) Approve 4,574,260,767 99.9808 Alkimar Ribeiro Moura (effective) / Reject - - Election of the Fiscal Council by candidate - Total members to be elected: 2 João Costa (substitute) Nomination of candidates to the Fiscal Council (the stockholder may nominate Abstain 878,831 0.0192 12 as many candidates as the number of vacancies to be fulfilled in the general José Caruso Cruz Henriques Approve 4,574,260,767 99.9808 election) (effective) / Reinaldo Guerreiro Reject - - (substitute) Abstain 878,831 0.0192 Approve 1,328,226,469 94.2843 Separate election of the Fiscal Council - Preferred shares Eduardo Azevedo do Valle 13 Nomination of candidates to the Fiscal Council by stockholders holding (effective) / Debora Santille Reject 6,971,052 0.4948 preferred shares without voting or restricted voting rights (substitute) Abstain 73,549,201 5.2209 Approve 4,565,324,795 99.7855 Resolve on the amount allocated to the overall compensation of the members of 14 the Company’s Board of Officers and Board of Directors in the total amount of Reject 1,953,307 0.0427 R$380,000,000.00: Abstain 7,861,496 0.1718 Approve 4,574,286,249 99.9813 Resolve on the monthly individual compensation of R$15,000.00 to effective 15 Reject 100 0.0000 members and R$6,000.00 to alternate members of the Fiscal Council: Abstain 853,249 0.0186 (*) 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 24, 2019. ALEXSANDRO BROEDEL Group Executive Finance Director and Head of Investor Relations