Exhibit 99.1 MANAGEMENT REPORT – December 31, 2018 To our stockholders: We present the Management Report of ITAÚ UNIBANCO HOLDING S.A. and its subsidiaries (ITAÚ UNIBANCO HOLDING PRUDENTIAL) for the periods from January 1 to December 31, 2018 and 2017, which were prepared in accordance with BACEN Resolution No. 4,280 of October 31, 2013 and Circular Letter No. 3,701 of March 13, 2014, and fit for the specific purposes of this resolution. Net income and stockholder’ equity ITAÚ UNIBANCO HOLDING PRUDENTIAL net income totaled R$ 22,999 million for the year and net earnings per share were R$ 2.37. Consolidated stockholders' equity totaled R$ 144,131 million and the book value per share reached R$ 13.56. Assets and funds raised Assets totaled R$ 1,455,927 million and were substantially composed of R$ 552,344 million of Interbank Investments, Securities and Derivative Financial Instruments, and R$ 620,207 million of Loan, Lease and Other Credit Operations and the Foreign Exchange Portfolio. Circular letter No. 3,068/01 of BACEN ITAÚ UNIBANCO HOLDING PRUDENTIAL hereby represents that it has the financial capacity and the intention to hold to maturity securities classified under the line “held-to-maturity securities” in the balance sheet, amounting to R$ 35.7 billion, corresponding to only 14.1% of the total securities and derivative financial instruments held. Acknowledgements We thank our stockholders and clients for their support and trust, and our employees for their determination and commitment, which have been essential to reaching these positive results. São Paulo, February 22, 2019. Executive Board Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 1.1 Exhibit 99.1 MANAGEMENT REPORT – December 31, 2018 To our stockholders: We present the Management Report of ITAÚ UNIBANCO HOLDING S.A. and its subsidiaries (ITAÚ UNIBANCO HOLDING PRUDENTIAL) for the periods from January 1 to December 31, 2018 and 2017, which were prepared in accordance with BACEN Resolution No. 4,280 of October 31, 2013 and Circular Letter No. 3,701 of March 13, 2014, and fit for the specific purposes of this resolution. Net income and stockholder’ equity ITAÚ UNIBANCO HOLDING PRUDENTIAL net income totaled R$ 22,999 million for the year and net earnings per share were R$ 2.37. Consolidated stockholders' equity totaled R$ 144,131 million and the book value per share reached R$ 13.56. Assets and funds raised Assets totaled R$ 1,455,927 million and were substantially composed of R$ 552,344 million of Interbank Investments, Securities and Derivative Financial Instruments, and R$ 620,207 million of Loan, Lease and Other Credit Operations and the Foreign Exchange Portfolio. Circular letter No. 3,068/01 of BACEN ITAÚ UNIBANCO HOLDING PRUDENTIAL hereby represents that it has the financial capacity and the intention to hold to maturity securities classified under the line “held-to-maturity securities” in the balance sheet, amounting to R$ 35.7 billion, corresponding to only 14.1% of the total securities and derivative financial instruments held. Acknowledgements We thank our stockholders and clients for their support and trust, and our employees for their determination and commitment, which have been essential to reaching these positive results. São Paulo, February 22, 2019. Executive Board Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 1.1

ITAÚ UNIBANCO HOLDING S.A. BOARD OF DIRECTORS BOARD OF EXECUTIVE OFFICERS Co-Chairmen Chief Executive Officer Pedro Moreira Salles Candido Botelho Bracher Roberto Egydio Setubal Director Generals (3) Members Eduardo Mazzilli de Vassimon Alfredo Egydio Setubal Márcio de Andrade Schettini Amos Genish Ana Lúcia de Mattos Barretto Villela Executive Vice-Presidents Fábio Colletti Barbosa André Sapoznik (3) Gustavo Jorge Laboissière Loyola Caio Ibrahim David João Moreira Salles Claudia Politanski (2) José Galló Milton Maluhy Filho Marco Ambrogio Crespi Bonomi Pedro Luiz Bodin de Moraes Executive Officers (*) Ricardo Villela Marino Alexsandro Broedel Lopes Fernando Barçante Tostes Malta Leila Cristiane Barboza Braga de Melo Paulo Sergio Miron AUDIT COMMITTEE Chairman Officers (1) Gustavo Jorge Laboissière Loyola Adriano Cabral Volpini Álvaro Felipe Rizzi Rodrigues Andre Balestrin Cestare Members Emerson Macedo Bortoloto Antonio Carlos Barbosa de Oliveira Gilberto Frussa Antonio Francisco de Lima Neto José Virgilio Vita Neto Diego Fresco Gutierrez Renato Barbosa do Nascimento Maria Helena dos Santos Fernandes de Santana Rodrigo Luís Rosa Couto Rogério Paulo Calderón Peres Sergio Mychkis Goldstein Tatiana Grecco Tom Gouvêa Gerth FISCAL COUNCIL Chairman José Caruso Cruz Henriques Members Alkimar Ribeiro Moura Carlos Roberto de Albuquerque Sá (*) Accountant Group Executive Finance Director and Head of Investor Relations. (1) Arnaldo Alves dos Santos Elected at the ESM of 10/25/2018, approved by the BACEN of 11/30/2018. (2) CRC - 1SP - 210.058/O-3 Elected at the ESM of 11/29/2018, approved by the BACEN of 12/17/2018. (3) It was recorded that, on 01/03/2019, the Managing Vice-President Caio Ibrahim David, was relocated to the position of General Manager, replacing the General Manager Eduardo Mazzilli de Vassimon. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 2.1 ITAÚ UNIBANCO HOLDING S.A. BOARD OF DIRECTORS BOARD OF EXECUTIVE OFFICERS Co-Chairmen Chief Executive Officer Pedro Moreira Salles Candido Botelho Bracher Roberto Egydio Setubal Director Generals (3) Members Eduardo Mazzilli de Vassimon Alfredo Egydio Setubal Márcio de Andrade Schettini Amos Genish Ana Lúcia de Mattos Barretto Villela Executive Vice-Presidents Fábio Colletti Barbosa André Sapoznik (3) Gustavo Jorge Laboissière Loyola Caio Ibrahim David João Moreira Salles Claudia Politanski (2) José Galló Milton Maluhy Filho Marco Ambrogio Crespi Bonomi Pedro Luiz Bodin de Moraes Executive Officers (*) Ricardo Villela Marino Alexsandro Broedel Lopes Fernando Barçante Tostes Malta Leila Cristiane Barboza Braga de Melo Paulo Sergio Miron AUDIT COMMITTEE Chairman Officers (1) Gustavo Jorge Laboissière Loyola Adriano Cabral Volpini Álvaro Felipe Rizzi Rodrigues Andre Balestrin Cestare Members Emerson Macedo Bortoloto Antonio Carlos Barbosa de Oliveira Gilberto Frussa Antonio Francisco de Lima Neto José Virgilio Vita Neto Diego Fresco Gutierrez Renato Barbosa do Nascimento Maria Helena dos Santos Fernandes de Santana Rodrigo Luís Rosa Couto Rogério Paulo Calderón Peres Sergio Mychkis Goldstein Tatiana Grecco Tom Gouvêa Gerth FISCAL COUNCIL Chairman José Caruso Cruz Henriques Members Alkimar Ribeiro Moura Carlos Roberto de Albuquerque Sá (*) Accountant Group Executive Finance Director and Head of Investor Relations. (1) Arnaldo Alves dos Santos Elected at the ESM of 10/25/2018, approved by the BACEN of 11/30/2018. (2) CRC - 1SP - 210.058/O-3 Elected at the ESM of 11/29/2018, approved by the BACEN of 12/17/2018. (3) It was recorded that, on 01/03/2019, the Managing Vice-President Caio Ibrahim David, was relocated to the position of General Manager, replacing the General Manager Eduardo Mazzilli de Vassimon. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 2.1

ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Balance Sheet (Note 2a) (In thousands of Reais) Assets Note 12/31/2018 12/31/2017 Current assets 1,009,056,339 905,040,675 Cash 0 3 7,087,047 18,668,746 Interbank investments 3b and 4 298,547,796 2 63,948,625 Money market 0 2 72,820,965 2 35,913,038 Interbank deposits 0 25,726,831 2 8,035,587 Securities and derivative financial instruments 3c, 3d and 5 134,760,518 1 58,140,863 Own portfolio 0 7 8,470,729 9 5,184,743 Subject to repurchase commitments 0 3 5,361,175 33,401,902 0 2,757,506 1 1,297,748 Pledged in guarantee Deposited with the Central Bank 0 2 ,917,625 3 ,386,777 Securities under resale agreements with free movement 0 4 ,985,360 1,745,202 0 1 0,268,123 13,124,491 Derivative financial instruments Interbank accounts 0 132,204,680 132,523,704 Pending settlement 0 37,647,435 3 3,103,755 Central Bank deposits 0 94,148,242 98,836,941 National Housing System (SFH) 0 11,705 8 ,491 Correspondents 0 45,479 34,779 Interbank Onlending 3 51,819 539,738 Interbranch accounts 0 517,560 1 23,946 Loan, lease and other credit operations 6 272,101,799 245,050,747 Operations with credit granting characteristics 3e 289,101,872 261,105,909 3f ( 17,000,073) (16,055,162) (Allowance for loan losses) Other receivables - Sundry 9a 131,489,625 84,069,805 Other assets 3g 2,347,314 2,514,239 0 1 ,468,034 1 ,230,146 Assets held for sale (Valuation allowance) 0 ( 606,736) (512,698) Prepaid expenses 3g and 9c 1,486,016 1 ,796,791 Long-term receivables 391,788,232 3 73,528,568 Interbank investments 3b and 4 791,349 1 ,208,747 Money market 0 1 03,235 195,861 Interbank deposits 0 6 88,114 1 ,012,886 Securities and derivative financial instruments 3c, 3d and 5 1 18,244,004 101,354,690 Own portfolio 0 4 2,387,260 5 4,181,305 Subject to repurchase commitments 0 25,538,386 17,208,562 Pledged in guarantee 0 4 ,931,976 6 ,565,801 Deposited with the Central Bank 5 53,557 698,010 Securities under resale agreements with free movement 0 31,639,584 1 3,169,009 Derivative financial instruments 0 13,193,241 9 ,532,003 Interbank accounts 5 4,096 1 04,723 Pending settlement 4 9,809 - National Housing System (SFH) 4,287 1 04,723 Loan, lease and other credit operations 6 227,256,829 2 13,187,027 Operations with credit granting characteristics 3e 243,381,694 232,491,686 (Allowance for loan losses) 3f ( 16,124,865) (19,304,659) Other receivables - Sundry 9a 4 4,897,289 5 7,198,170 Other assets - Prepaid expenses 3g and 9c 5 44,665 475,211 Permanent assets 55,082,193 47,759,850 Investments 3h 35,069,221 24,447,576 0 3 4,778,751 24,143,884 Other investments 0 4 39,962 453,204 (Allowance for losses) (149,492) ( 149,512) Real estate in use 3i and 11a I 5 ,883,337 5 ,849,480 Real estate in use 0 3,313,371 3,280,754 Other fixed assets 0 1 3,906,709 1 2,906,455 (Accumulated depreciation) (11,336,743) (10,337,729) Intangible assets 3k and 11a I 1 4,129,635 17,462,794 Goodwill 3j and 11a I 413,101 669,521 Acquisition of rights to credit payroll 0 34,387,408 3 3,013,940 (Accumulated amortization) ( 20,670,874) (16,220,667) Total assets 1 ,455,926,764 1 ,326,329,093 The accompanying notes are an integral part of these financial statements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.1 ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Balance Sheet (Note 2a) (In thousands of Reais) Assets Note 12/31/2018 12/31/2017 Current assets 1,009,056,339 905,040,675 Cash 0 3 7,087,047 18,668,746 Interbank investments 3b and 4 298,547,796 2 63,948,625 Money market 0 2 72,820,965 2 35,913,038 Interbank deposits 0 25,726,831 2 8,035,587 Securities and derivative financial instruments 3c, 3d and 5 134,760,518 1 58,140,863 Own portfolio 0 7 8,470,729 9 5,184,743 Subject to repurchase commitments 0 3 5,361,175 33,401,902 0 2,757,506 1 1,297,748 Pledged in guarantee Deposited with the Central Bank 0 2 ,917,625 3 ,386,777 Securities under resale agreements with free movement 0 4 ,985,360 1,745,202 0 1 0,268,123 13,124,491 Derivative financial instruments Interbank accounts 0 132,204,680 132,523,704 Pending settlement 0 37,647,435 3 3,103,755 Central Bank deposits 0 94,148,242 98,836,941 National Housing System (SFH) 0 11,705 8 ,491 Correspondents 0 45,479 34,779 Interbank Onlending 3 51,819 539,738 Interbranch accounts 0 517,560 1 23,946 Loan, lease and other credit operations 6 272,101,799 245,050,747 Operations with credit granting characteristics 3e 289,101,872 261,105,909 3f ( 17,000,073) (16,055,162) (Allowance for loan losses) Other receivables - Sundry 9a 131,489,625 84,069,805 Other assets 3g 2,347,314 2,514,239 0 1 ,468,034 1 ,230,146 Assets held for sale (Valuation allowance) 0 ( 606,736) (512,698) Prepaid expenses 3g and 9c 1,486,016 1 ,796,791 Long-term receivables 391,788,232 3 73,528,568 Interbank investments 3b and 4 791,349 1 ,208,747 Money market 0 1 03,235 195,861 Interbank deposits 0 6 88,114 1 ,012,886 Securities and derivative financial instruments 3c, 3d and 5 1 18,244,004 101,354,690 Own portfolio 0 4 2,387,260 5 4,181,305 Subject to repurchase commitments 0 25,538,386 17,208,562 Pledged in guarantee 0 4 ,931,976 6 ,565,801 Deposited with the Central Bank 5 53,557 698,010 Securities under resale agreements with free movement 0 31,639,584 1 3,169,009 Derivative financial instruments 0 13,193,241 9 ,532,003 Interbank accounts 5 4,096 1 04,723 Pending settlement 4 9,809 - National Housing System (SFH) 4,287 1 04,723 Loan, lease and other credit operations 6 227,256,829 2 13,187,027 Operations with credit granting characteristics 3e 243,381,694 232,491,686 (Allowance for loan losses) 3f ( 16,124,865) (19,304,659) Other receivables - Sundry 9a 4 4,897,289 5 7,198,170 Other assets - Prepaid expenses 3g and 9c 5 44,665 475,211 Permanent assets 55,082,193 47,759,850 Investments 3h 35,069,221 24,447,576 0 3 4,778,751 24,143,884 Other investments 0 4 39,962 453,204 (Allowance for losses) (149,492) ( 149,512) Real estate in use 3i and 11a I 5 ,883,337 5 ,849,480 Real estate in use 0 3,313,371 3,280,754 Other fixed assets 0 1 3,906,709 1 2,906,455 (Accumulated depreciation) (11,336,743) (10,337,729) Intangible assets 3k and 11a I 1 4,129,635 17,462,794 Goodwill 3j and 11a I 413,101 669,521 Acquisition of rights to credit payroll 0 34,387,408 3 3,013,940 (Accumulated amortization) ( 20,670,874) (16,220,667) Total assets 1 ,455,926,764 1 ,326,329,093 The accompanying notes are an integral part of these financial statements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.1

ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Balance Sheet (Note 2a) (In thousands of Reais) Liabilities Note 12/31/2018 12/31/2017 Current liabilities 9 03,059,638 797,187,379 Deposits 3b and 7b 309,952,870 275,272,402 Demand deposits - 7 3,045,763 69,366,205 Savings deposits - 136,908,595 120,004,481 Interbank deposits - 2 ,468,700 1 ,664,631 Time deposits - 9 7,527,085 8 4,234,494 Other deposits 2,727 2,591 Deposits received under securities repurchase agreements 3b and 7c 2 84,521,147 253,593,450 Own portfolio - 75,490,180 83,713,143 Third-party portfolio - 181,694,343 158,000,043 Free portfolio - 27,336,624 11,880,264 Funds from acceptances and issuance of securities 3b and 7d 33,405,852 4 8,437,013 Real estate, mortgage, credit and similar notes - 2 5,189,429 3 4,842,544 Foreign Borrowing through securities - 6,266,935 11,831,551 Structured Operations Certificates 1,949,488 1,762,918 Interbank accounts - 41,253,290 3 4,116,644 Pending settlement - 4 0,832,886 3 3,761,289 Correspondents - 4 20,404 355,355 Interbranch accounts - 5,612,300 4 ,973,303 Third-party funds in transit - 5 ,602,746 4 ,951,760 Internal transfer of funds - 9 ,554 2 1,543 Borrowing and onlending 3b and 7e 47,977,147 3 8,709,225 Borrowing - 42,675,654 30,718,358 Onlending - 5,301,493 7 ,990,867 Derivative financial instruments 3d and 5f 10,013,437 1 3,102,103 Other liabilities - 170,323,595 128,983,239 Subordinated debt 7f 343,174 12,498,741 Sundry 9d 169,980,421 1 16,484,498 Long-term liabilities - 4 06,103,200 386,422,376 Deposits 3b and 7b 1 61,688,108 130,586,561 Interbank deposits - 205,827 5 17,143 Time deposits - 161,482,281 1 30,069,418 Deposits received under securities repurchase agreements 3b and 7c 59,102,276 7 2,205,449 Own portfolio - 6,805,939 27,557,492 Free portfolio - 5 2,296,337 4 4,647,957 Funds from acceptances and issuance of securities 3b and 7d 78,160,070 59,144,011 Real estate, mortgage, credit and similar notes - 4 1,524,348 2 6,474,085 Foreign Borrowing through securities - 35,786,905 30,045,568 Structured Operations Certificates 848,817 2,624,358 Borrowing and onlending 3b and 7e 1 9,970,018 24,731,795 Borrowing - 7,364,711 8,541,383 Onlending - 1 2,605,307 1 6,190,412 Derivative financial instruments 3d and 5f 17,471,428 1 3,350,513 Other liabilities - 69,711,300 86,404,047 Subordinated debt 7f 4 1,267,980 3 6,048,767 Debt instruments eligible as capital 7 ,701,570 4 ,148,367 Sundry 9d 20,741,750 46,206,913 Deferred income 3p 2 ,633,144 2,371,348 Capital - 9 7,148,000 9 7,148,000 Capital reserves - 1,923,056 1,733,611 Revenue reserves - 37,121,745 3 4,494,495 Asset valuation adjustment 3c, 3d and 12e (2,518,510) (2,227,851) (Treasury shares) - (1,819,690) (2 ,742,767) Total stockholders' equity of controlling shareholders 12 131,854,601 1 28,405,488 Non-controlling interests 12f 1 2,276,181 11,942,502 Total stockholders' equity 1 44,130,782 140,347,990 Total liabilities and stockholders' equity 1 ,455,926,764 1 ,326,329,093 The accompanying notes are an integral part of these financial statements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.2 ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Balance Sheet (Note 2a) (In thousands of Reais) Liabilities Note 12/31/2018 12/31/2017 Current liabilities 9 03,059,638 797,187,379 Deposits 3b and 7b 309,952,870 275,272,402 Demand deposits - 7 3,045,763 69,366,205 Savings deposits - 136,908,595 120,004,481 Interbank deposits - 2 ,468,700 1 ,664,631 Time deposits - 9 7,527,085 8 4,234,494 Other deposits 2,727 2,591 Deposits received under securities repurchase agreements 3b and 7c 2 84,521,147 253,593,450 Own portfolio - 75,490,180 83,713,143 Third-party portfolio - 181,694,343 158,000,043 Free portfolio - 27,336,624 11,880,264 Funds from acceptances and issuance of securities 3b and 7d 33,405,852 4 8,437,013 Real estate, mortgage, credit and similar notes - 2 5,189,429 3 4,842,544 Foreign Borrowing through securities - 6,266,935 11,831,551 Structured Operations Certificates 1,949,488 1,762,918 Interbank accounts - 41,253,290 3 4,116,644 Pending settlement - 4 0,832,886 3 3,761,289 Correspondents - 4 20,404 355,355 Interbranch accounts - 5,612,300 4 ,973,303 Third-party funds in transit - 5 ,602,746 4 ,951,760 Internal transfer of funds - 9 ,554 2 1,543 Borrowing and onlending 3b and 7e 47,977,147 3 8,709,225 Borrowing - 42,675,654 30,718,358 Onlending - 5,301,493 7 ,990,867 Derivative financial instruments 3d and 5f 10,013,437 1 3,102,103 Other liabilities - 170,323,595 128,983,239 Subordinated debt 7f 343,174 12,498,741 Sundry 9d 169,980,421 1 16,484,498 Long-term liabilities - 4 06,103,200 386,422,376 Deposits 3b and 7b 1 61,688,108 130,586,561 Interbank deposits - 205,827 5 17,143 Time deposits - 161,482,281 1 30,069,418 Deposits received under securities repurchase agreements 3b and 7c 59,102,276 7 2,205,449 Own portfolio - 6,805,939 27,557,492 Free portfolio - 5 2,296,337 4 4,647,957 Funds from acceptances and issuance of securities 3b and 7d 78,160,070 59,144,011 Real estate, mortgage, credit and similar notes - 4 1,524,348 2 6,474,085 Foreign Borrowing through securities - 35,786,905 30,045,568 Structured Operations Certificates 848,817 2,624,358 Borrowing and onlending 3b and 7e 1 9,970,018 24,731,795 Borrowing - 7,364,711 8,541,383 Onlending - 1 2,605,307 1 6,190,412 Derivative financial instruments 3d and 5f 17,471,428 1 3,350,513 Other liabilities - 69,711,300 86,404,047 Subordinated debt 7f 4 1,267,980 3 6,048,767 Debt instruments eligible as capital 7 ,701,570 4 ,148,367 Sundry 9d 20,741,750 46,206,913 Deferred income 3p 2 ,633,144 2,371,348 Capital - 9 7,148,000 9 7,148,000 Capital reserves - 1,923,056 1,733,611 Revenue reserves - 37,121,745 3 4,494,495 Asset valuation adjustment 3c, 3d and 12e (2,518,510) (2,227,851) (Treasury shares) - (1,819,690) (2 ,742,767) Total stockholders' equity of controlling shareholders 12 131,854,601 1 28,405,488 Non-controlling interests 12f 1 2,276,181 11,942,502 Total stockholders' equity 1 44,130,782 140,347,990 Total liabilities and stockholders' equity 1 ,455,926,764 1 ,326,329,093 The accompanying notes are an integral part of these financial statements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.2

ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Statement of Income (Note 2a) (In thousands of Reais) 2nd Half of 01/01 to 01/01 to Note 2018 12/31/2018 12/31/2017 Income from financial operations 63,011,159 125,721,049 130,995,148 Loan, lease and other credit operations - 3 7,291,512 74,664,202 74,720,440 Derivative financial instruments 21,330,149 4 2,427,963 4 8,391,356 Foreign exchange operations - 1 ,977,525 3,686,191 7 32,521 Compulsory deposits - 2 ,411,973 4 ,942,693 7,150,831 Expenses of financial operations - (32,033,384) (7 2,270,473) (6 8,282,558) Money market - (2 8,618,117) (6 1,824,438) (62,970,574) Borrowing and onlending 7e (3,415,267) (1 0,446,035) (5 ,311,984) Income from financial operations before loan and losses - 30,977,775 53,450,576 62,712,590 Result of allowance for loan losses 6 (4,524,914) (1 0,367,744) (1 5,048,252) Expenses for allowance for loan losses - (6,955,670) (14,501,245) (1 8,749,556) Income from recovery of credits written off as loss - 2,430,756 4 ,133,501 3 ,701,304 Gross income from financial operations - 26,452,861 43,082,832 47,664,338 Other operating revenues (expenses) - (9,112,005) (1 4,652,448) (1 8,650,982) Banking service fees 9e 12,675,677 24,819,640 23,500,673 Income from bank charges 9f 6,383,750 12,624,039 1 1,913,079 Personnel expenses 9g (11,715,780) (22,312,860) (21,118,708) Other administrative expenses 9h (10,281,981) (19,858,889) (1 8,535,961) Tax expenses 3o and 10a II (3 ,436,089) (6,153,116) (6,593,896) Equity in earnings of affiliates, jointly controlled entities and other investments 11a ll 2 ,261,751 6,563,138 3 ,603,253 Other operating revenues 1,341,486 1 ,783,498 8 9,879 Other operating expenses 9i (6 ,340,819) (12,117,898) (11,509,301) Operating income - 17,340,856 28,430,384 29,013,356 Non-operating income 180,498 197,600 (236,011) Income before taxes on income and profit sharing - 17,521,354 28,627,984 28,777,345 Income tax and social contribution 3o and 10a I (5,756,909) (5 ,094,004) (6 ,754,716) Due on operations for the period - 1 27,232 (3,417,587) (3 ,017,603) Related to temporary differences - (5 ,884,141) (1 ,676,417) (3 ,737,113) Profit sharing – Management Members - Statutory - (149,455) (2 50,664) (2 37,650) Non-controlling interests 12f (1 54,058) (283,925) 211,496 Net income 11,460,932 22,999,391 21,996,475 Weighted average of the number of outstanding shares 12a 9,718,162,444 9,755,865,045 Net income per share – R$ 2.37 2.25 Book value per share - R$ (outstanding at 12/31) 13.56 1 3.16 The accompanying notes are an integral part of these financial statements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.3 ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Statement of Income (Note 2a) (In thousands of Reais) 2nd Half of 01/01 to 01/01 to Note 2018 12/31/2018 12/31/2017 Income from financial operations 63,011,159 125,721,049 130,995,148 Loan, lease and other credit operations - 3 7,291,512 74,664,202 74,720,440 Derivative financial instruments 21,330,149 4 2,427,963 4 8,391,356 Foreign exchange operations - 1 ,977,525 3,686,191 7 32,521 Compulsory deposits - 2 ,411,973 4 ,942,693 7,150,831 Expenses of financial operations - (32,033,384) (7 2,270,473) (6 8,282,558) Money market - (2 8,618,117) (6 1,824,438) (62,970,574) Borrowing and onlending 7e (3,415,267) (1 0,446,035) (5 ,311,984) Income from financial operations before loan and losses - 30,977,775 53,450,576 62,712,590 Result of allowance for loan losses 6 (4,524,914) (1 0,367,744) (1 5,048,252) Expenses for allowance for loan losses - (6,955,670) (14,501,245) (1 8,749,556) Income from recovery of credits written off as loss - 2,430,756 4 ,133,501 3 ,701,304 Gross income from financial operations - 26,452,861 43,082,832 47,664,338 Other operating revenues (expenses) - (9,112,005) (1 4,652,448) (1 8,650,982) Banking service fees 9e 12,675,677 24,819,640 23,500,673 Income from bank charges 9f 6,383,750 12,624,039 1 1,913,079 Personnel expenses 9g (11,715,780) (22,312,860) (21,118,708) Other administrative expenses 9h (10,281,981) (19,858,889) (1 8,535,961) Tax expenses 3o and 10a II (3 ,436,089) (6,153,116) (6,593,896) Equity in earnings of affiliates, jointly controlled entities and other investments 11a ll 2 ,261,751 6,563,138 3 ,603,253 Other operating revenues 1,341,486 1 ,783,498 8 9,879 Other operating expenses 9i (6 ,340,819) (12,117,898) (11,509,301) Operating income - 17,340,856 28,430,384 29,013,356 Non-operating income 180,498 197,600 (236,011) Income before taxes on income and profit sharing - 17,521,354 28,627,984 28,777,345 Income tax and social contribution 3o and 10a I (5,756,909) (5 ,094,004) (6 ,754,716) Due on operations for the period - 1 27,232 (3,417,587) (3 ,017,603) Related to temporary differences - (5 ,884,141) (1 ,676,417) (3 ,737,113) Profit sharing – Management Members - Statutory - (149,455) (2 50,664) (2 37,650) Non-controlling interests 12f (1 54,058) (283,925) 211,496 Net income 11,460,932 22,999,391 21,996,475 Weighted average of the number of outstanding shares 12a 9,718,162,444 9,755,865,045 Net income per share – R$ 2.37 2.25 Book value per share - R$ (outstanding at 12/31) 13.56 1 3.16 The accompanying notes are an integral part of these financial statements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.3

ITAÚ UNIBANCO HOLDING S.A. Prudential Statement of Changes in Stockholders’ Equity (Note 12) (In thousands of Reais) Asset Capital Revenue valuation Retained (Treasury Capital Total reserves reserves adjustment earnings shares) (Note 7d) Balance at 07/01/2018 97,148,000 1 ,586,364 2 9,344,128 (3,533,478) - (1,977,732) 1 22,567,282 Result of delivery of treasure shares - 4 8,449 - - - 158,042 206,491 Recognition of stock-based payment plans - 2 88,243 - - - - 288,243 Unclaimed dividends 2,316 2,316 Asset valuation adjustments: Change in adjustment to market value - - - 1,393,753 - - 1 ,393,753 Remeasurements in liabilities of post-employment benefits - - - (162,487) - - (162,487) Foreign exchange variation on investments abroad / Hedge of net investment in foreign operations - - - ( 216,299) - - ( 216,299) Net income - - - - 1 1,460,933 - 1 1,460,933 Appropriations: Legal reserve - - 573,047 - (573,047) - - Statutory reserves - - ( 4,523,206) - 4 ,523,206 - - Dividends and interest on capital - - 1 1,727,777 - (15,413,408) - (3,685,631) Balance at 12/31/2018 97,148,000 1 ,923,056 3 7,121,746 (2,518,511) - (1,819,690) 131,854,601 Changes in the period - 336,692 7 ,777,618 1,014,967 - 158,042 9,287,319 Balance at 01/01/2017 97,148,000 1 ,589,343 2 4,487,354 ( 2,975,797) - ( 1,882,353) 1 18,366,547 Purchase of treasury shares - - - - - (3,089,464) ( 3,089,464) Cancellation of shares – Meeting of the Board of Directors at December 15, 2017 - - (1,178,252) - - 1,178,252 - Result of delivery of treasure shares - 6 3,593 - - - 1 ,050,798 1 ,114,391 Recognition of stock-based payment plans - 8 0,675 - - - - 8 0,675 Payment of interest on capital on 03/03/2017 – declared after 12/31/2016 - R$ 0.6591 per share - - ( 5,047,692) - - - ( 5,047,692) Financial guarantees provided - CMN Resolution nº 4,512 (Note 6c) - - - - (220,902) - (220,902) Asset valuation adjustments: Change in adjustment to market value - - - 6 97,395 - - 697,395 Remeasurements in liabilities of post-employment benefits - - - (11,231) - - ( 11,231) Foreign exchange variation on investments abroad / Hedge of net investment in foreign operations - - - 61,782 - - 61,782 Net income - - - - 21,996,475 - 21,996,475 Appropriations: Legal reserve - - 1 ,099,824 - ( 1,099,824) - - Statutory reserves - - 1,475,276 - ( 1,475,276) - - Dividends and interest on capital - - 13,657,985 - (19,200,473) - (5,542,488) Balance at 12/31/2017 9 7,148,000 1 ,733,611 3 4,494,495 ( 2,227,851) - ( 2,742,767) 1 28,405,488 Changes in the period - 1 44,268 1 0,007,141 747,946 - ( 860,414) 1 0,038,941 Balance at 01/01/2018 97,148,000 1 ,733,611 34,494,495 (2,227,851) - (2,742,767) 128,405,488 Purchase of treasury shares - - - - - ( 510,308) (510,308) Cancellation of Shares – Meeting of the Board of Directors at February 22, 2018 - - ( 534,421) - - 534,421 - Result of delivery of treasure shares - 4 21,740 - - - 898,964 1,320,704 Recognition of stock-based payment plans - (232,295) - - - - (232,295) Payment of interest on capital on 03/07/2018 – declared after 12/31/2017 - R$ 2.1126 per share - - (13,672,862) - - - ( 13,672,862) Unclaimed dividends - - - - 4 ,491 - 4 ,491 Asset valuation adjustments: Change in adjustment to market value - - - 3 9,673 - - 39,673 Remeasurements in liabilities of post-employment benefits - - - ( 165,788) - - (165,788) Foreign exchange variation on investments abroad / Hedge of net investment in foreign operations - - - (164,544) - - ( 164,544) Net income - - - - 2 2,999,391 - 2 2,999,391 Appropriations: Legal reserve - - 1 ,149,969 - (1,149,969) - - Statutory reserves - - 1,005,794 - ( 1,005,794) - - Dividends and interest on capital - - 14,678,770 - ( 20,848,119) - (6,169,349) Balance at 12/31/2018 9 7,148,000 1 ,923,056 37,121,745 (2,518,510) - (1,819,690) 1 31,854,601 Changes in the period - 1 89,445 2 ,627,250 (290,659) - 923,077 3 ,449,113 The accompanying notes are an integral part of these financial statements Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.4 ITAÚ UNIBANCO HOLDING S.A. Prudential Statement of Changes in Stockholders’ Equity (Note 12) (In thousands of Reais) Asset Capital Revenue valuation Retained (Treasury Capital Total reserves reserves adjustment earnings shares) (Note 7d) Balance at 07/01/2018 97,148,000 1 ,586,364 2 9,344,128 (3,533,478) - (1,977,732) 1 22,567,282 Result of delivery of treasure shares - 4 8,449 - - - 158,042 206,491 Recognition of stock-based payment plans - 2 88,243 - - - - 288,243 Unclaimed dividends 2,316 2,316 Asset valuation adjustments: Change in adjustment to market value - - - 1,393,753 - - 1 ,393,753 Remeasurements in liabilities of post-employment benefits - - - (162,487) - - (162,487) Foreign exchange variation on investments abroad / Hedge of net investment in foreign operations - - - ( 216,299) - - ( 216,299) Net income - - - - 1 1,460,933 - 1 1,460,933 Appropriations: Legal reserve - - 573,047 - (573,047) - - Statutory reserves - - ( 4,523,206) - 4 ,523,206 - - Dividends and interest on capital - - 1 1,727,777 - (15,413,408) - (3,685,631) Balance at 12/31/2018 97,148,000 1 ,923,056 3 7,121,746 (2,518,511) - (1,819,690) 131,854,601 Changes in the period - 336,692 7 ,777,618 1,014,967 - 158,042 9,287,319 Balance at 01/01/2017 97,148,000 1 ,589,343 2 4,487,354 ( 2,975,797) - ( 1,882,353) 1 18,366,547 Purchase of treasury shares - - - - - (3,089,464) ( 3,089,464) Cancellation of shares – Meeting of the Board of Directors at December 15, 2017 - - (1,178,252) - - 1,178,252 - Result of delivery of treasure shares - 6 3,593 - - - 1 ,050,798 1 ,114,391 Recognition of stock-based payment plans - 8 0,675 - - - - 8 0,675 Payment of interest on capital on 03/03/2017 – declared after 12/31/2016 - R$ 0.6591 per share - - ( 5,047,692) - - - ( 5,047,692) Financial guarantees provided - CMN Resolution nº 4,512 (Note 6c) - - - - (220,902) - (220,902) Asset valuation adjustments: Change in adjustment to market value - - - 6 97,395 - - 697,395 Remeasurements in liabilities of post-employment benefits - - - (11,231) - - ( 11,231) Foreign exchange variation on investments abroad / Hedge of net investment in foreign operations - - - 61,782 - - 61,782 Net income - - - - 21,996,475 - 21,996,475 Appropriations: Legal reserve - - 1 ,099,824 - ( 1,099,824) - - Statutory reserves - - 1,475,276 - ( 1,475,276) - - Dividends and interest on capital - - 13,657,985 - (19,200,473) - (5,542,488) Balance at 12/31/2017 9 7,148,000 1 ,733,611 3 4,494,495 ( 2,227,851) - ( 2,742,767) 1 28,405,488 Changes in the period - 1 44,268 1 0,007,141 747,946 - ( 860,414) 1 0,038,941 Balance at 01/01/2018 97,148,000 1 ,733,611 34,494,495 (2,227,851) - (2,742,767) 128,405,488 Purchase of treasury shares - - - - - ( 510,308) (510,308) Cancellation of Shares – Meeting of the Board of Directors at February 22, 2018 - - ( 534,421) - - 534,421 - Result of delivery of treasure shares - 4 21,740 - - - 898,964 1,320,704 Recognition of stock-based payment plans - (232,295) - - - - (232,295) Payment of interest on capital on 03/07/2018 – declared after 12/31/2017 - R$ 2.1126 per share - - (13,672,862) - - - ( 13,672,862) Unclaimed dividends - - - - 4 ,491 - 4 ,491 Asset valuation adjustments: Change in adjustment to market value - - - 3 9,673 - - 39,673 Remeasurements in liabilities of post-employment benefits - - - ( 165,788) - - (165,788) Foreign exchange variation on investments abroad / Hedge of net investment in foreign operations - - - (164,544) - - ( 164,544) Net income - - - - 2 2,999,391 - 2 2,999,391 Appropriations: Legal reserve - - 1 ,149,969 - (1,149,969) - - Statutory reserves - - 1,005,794 - ( 1,005,794) - - Dividends and interest on capital - - 14,678,770 - ( 20,848,119) - (6,169,349) Balance at 12/31/2018 9 7,148,000 1 ,923,056 37,121,745 (2,518,510) - (1,819,690) 1 31,854,601 Changes in the period - 1 89,445 2 ,627,250 (290,659) - 923,077 3 ,449,113 The accompanying notes are an integral part of these financial statements Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.4

ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Statement of Cash Flows (In thousands of Reais) 2nd Half of 01/01 to 01/01 to Note 2018 12/31/2018 12/31/2017 Adjusted net income 7 0,976,371 73,284,085 3 7,178,457 Net income 11,460,932 22,999,391 21,996,475 Adjustments to net income: 59,515,439 50,284,694 15,181,982 Granted options recognized and share-based payment – variable compensation 288,243 (97,705) 80,675 Adjustment to market value of securities and derivative financial instruments (assets/liabilities) 303,975 623,893 1,653,869 Effects of changes in exchange rates on cash and cash equivalents 44,268,211 26,884,590 (13,961,228) Allowance for loan losses 6c 6,955,670 14,501,245 18,749,556 Interest and foreign exchange expense related to operations with subordinated debt 1,422,867 8,758,417 4,713,628 Depreciation and amortization 3,158,307 6,146,713 5,669,828 Interest expense from provision for contingent and legal liabilities 8b 487,988 972,749 1,255,779 Provision for contingent and legal liabilities 8b 1,404,827 2,485,204 3,791,646 Interest income from escrow deposits 8b (95,820) (170,853) (327,439) Deferred taxes (excluding hedge tax effects) 6,422,439 9,688,293 5,434,532 Equity in earnings of affiliates, jointly controlled entities and other investments (2,261,751) (6,563,138) (3,603,253) Interest and foreign exchange income from available-for-sale securities (2,857,466) (11,833,918) (8,473,522) (1,033,042) (3,806,243) 635,125 Interest and foreign exchange income from held-to-maturity securities (Gain) loss from sale of available-for-sale financial assets 121,794 (198,821) (389,584) (Gain) loss from sale of investments, foreclosed assets and fixed assets (90,246) (18,931) 420,076 Non-controlling interests 12f 154,058 283,925 (211,496) Other 865,385 2,629,274 (256,210) Change in assets and liabilities (405,029) (10,304,153) (55,245,843) (Increase) decrease in assets (71,097,487) (91,985,702) (82,506,096) Interbank investments (26,936,835) (38,976,300) (10,549,962) Securities and derivative financial instruments (assets/liabilities) (1,345,412) 6,035,099 (32,966,852) Compulsory deposits with the Central Bank of Brazil (9,348,363) 4,688,699 (13,136,479) Interbank and interbranch accounts (assets/liabilities) 426,869 3,062,981 456,332 Loan, lease and other credit operations (22,550,812) (56,279,114) (20,900,779) Other receivables and other assets (11,342,934) (10,517,067) (5,408,356) (Decrease) increase in liabilities 70,692,458 81,681,549 27,260,253 Deposits 40,212,423 65,782,015 69,323,835 Deposits received under securities repurchase agreements 27,316,837 17,824,524 (42,770,570) Funds for issuance of securities (3,442,509) 3,984,898 13,013,635 Borrowing and onlending 6,074,685 4,506,145 (12,238,196) Other liabilities 1,398,410 (8,502,133) 2,759,769 Deferred income (26,130) 261,796 361,422 Payment of income tax and social contribution (841,258) (2,175,696) (3,189,642) Net cash provided by (used in) operating activities 70,571,342 62,979,932 (18,067,386) Interest on capital / dividends received from affiliated companies 180,949 607,381 1,007,938 Funds received from sale of available-for-sale securities 4,508,780 12,505,552 14,676,541 Funds received from redemption of held-to-maturity securities 3,147,664 14,650,234 3,566,408 Disposal of assets not for own use 222,437 283,611 (140,226) Disposal of investments 196,494 291,083 215,618 Purchase of Non-controlling interests 2c - - (244,557) Sale of fixed assets 55,202 102,399 98,046 Termination of intangible asset agreements 40,323 41,736 20,743 Purchase of available-for-sale securities 219,266 (7,701,471) (15,104,040) Purchase of held-to-maturity securities (1,929,953) (2,463,399) (405,504) Purchase of investments (6,463,924) (6,466,942) (778,614) Purchase of fixed assets 11a I (942,580) (1,441,961) (845,720) Disposal (Purchase) of intangible assets 11a II (731,495) (1,371,033) (1,795,819) Net cash provided by (used in) invesment activities (1,496,837) 9,037,190 270,814 Increase in subordinated debt 14,250 2,906,100 4,135,000 Decrease in subordinated debt (6,049,723) (15,047,668) (13,572,828) Non-controlling interests 12f (985,371) 188,976 922,800 Granting of stock options 206,491 1,186,114 1,114,391 Purchase of treasury shares 12a - (510,308) (3,089,464) Dividends and interest on capital paid to Non-controlling interests (59,466) (139,222) (337,192) Dividends and interest on capital paid (5,241,498) (20,092,750) (10,381,751) Net cash provided by (used in) financing activities (12,115,317) (31,508,758) (21,209,044) Net increase (decrease) in cash and cash equivalents 56,959,188 40,508,364 (39,005,616) Cash and cash equivalents at the beginning of the period 69,402,868 68,470,071 93,514,459 Effects of changes in exchange rates on cash and cash equivalents (44,268,211) (26,884,590) 13,961,228 Cash and cash equivalents at the end of the period 3a 82,093,845 82,093,845 68,470,071 Cash 37,087,047 18,668,746 Interbank deposits 3,294,168 15,325,985 Securities purchased under agreements to resell - Funded position 41,712,630 34,475,340 The accompanying notes are an integral part of these financial statements Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.5 ITAÚ UNIBANCO HOLDING S.A. Prudential Consolidated Statement of Cash Flows (In thousands of Reais) 2nd Half of 01/01 to 01/01 to Note 2018 12/31/2018 12/31/2017 Adjusted net income 7 0,976,371 73,284,085 3 7,178,457 Net income 11,460,932 22,999,391 21,996,475 Adjustments to net income: 59,515,439 50,284,694 15,181,982 Granted options recognized and share-based payment – variable compensation 288,243 (97,705) 80,675 Adjustment to market value of securities and derivative financial instruments (assets/liabilities) 303,975 623,893 1,653,869 Effects of changes in exchange rates on cash and cash equivalents 44,268,211 26,884,590 (13,961,228) Allowance for loan losses 6c 6,955,670 14,501,245 18,749,556 Interest and foreign exchange expense related to operations with subordinated debt 1,422,867 8,758,417 4,713,628 Depreciation and amortization 3,158,307 6,146,713 5,669,828 Interest expense from provision for contingent and legal liabilities 8b 487,988 972,749 1,255,779 Provision for contingent and legal liabilities 8b 1,404,827 2,485,204 3,791,646 Interest income from escrow deposits 8b (95,820) (170,853) (327,439) Deferred taxes (excluding hedge tax effects) 6,422,439 9,688,293 5,434,532 Equity in earnings of affiliates, jointly controlled entities and other investments (2,261,751) (6,563,138) (3,603,253) Interest and foreign exchange income from available-for-sale securities (2,857,466) (11,833,918) (8,473,522) (1,033,042) (3,806,243) 635,125 Interest and foreign exchange income from held-to-maturity securities (Gain) loss from sale of available-for-sale financial assets 121,794 (198,821) (389,584) (Gain) loss from sale of investments, foreclosed assets and fixed assets (90,246) (18,931) 420,076 Non-controlling interests 12f 154,058 283,925 (211,496) Other 865,385 2,629,274 (256,210) Change in assets and liabilities (405,029) (10,304,153) (55,245,843) (Increase) decrease in assets (71,097,487) (91,985,702) (82,506,096) Interbank investments (26,936,835) (38,976,300) (10,549,962) Securities and derivative financial instruments (assets/liabilities) (1,345,412) 6,035,099 (32,966,852) Compulsory deposits with the Central Bank of Brazil (9,348,363) 4,688,699 (13,136,479) Interbank and interbranch accounts (assets/liabilities) 426,869 3,062,981 456,332 Loan, lease and other credit operations (22,550,812) (56,279,114) (20,900,779) Other receivables and other assets (11,342,934) (10,517,067) (5,408,356) (Decrease) increase in liabilities 70,692,458 81,681,549 27,260,253 Deposits 40,212,423 65,782,015 69,323,835 Deposits received under securities repurchase agreements 27,316,837 17,824,524 (42,770,570) Funds for issuance of securities (3,442,509) 3,984,898 13,013,635 Borrowing and onlending 6,074,685 4,506,145 (12,238,196) Other liabilities 1,398,410 (8,502,133) 2,759,769 Deferred income (26,130) 261,796 361,422 Payment of income tax and social contribution (841,258) (2,175,696) (3,189,642) Net cash provided by (used in) operating activities 70,571,342 62,979,932 (18,067,386) Interest on capital / dividends received from affiliated companies 180,949 607,381 1,007,938 Funds received from sale of available-for-sale securities 4,508,780 12,505,552 14,676,541 Funds received from redemption of held-to-maturity securities 3,147,664 14,650,234 3,566,408 Disposal of assets not for own use 222,437 283,611 (140,226) Disposal of investments 196,494 291,083 215,618 Purchase of Non-controlling interests 2c - - (244,557) Sale of fixed assets 55,202 102,399 98,046 Termination of intangible asset agreements 40,323 41,736 20,743 Purchase of available-for-sale securities 219,266 (7,701,471) (15,104,040) Purchase of held-to-maturity securities (1,929,953) (2,463,399) (405,504) Purchase of investments (6,463,924) (6,466,942) (778,614) Purchase of fixed assets 11a I (942,580) (1,441,961) (845,720) Disposal (Purchase) of intangible assets 11a II (731,495) (1,371,033) (1,795,819) Net cash provided by (used in) invesment activities (1,496,837) 9,037,190 270,814 Increase in subordinated debt 14,250 2,906,100 4,135,000 Decrease in subordinated debt (6,049,723) (15,047,668) (13,572,828) Non-controlling interests 12f (985,371) 188,976 922,800 Granting of stock options 206,491 1,186,114 1,114,391 Purchase of treasury shares 12a - (510,308) (3,089,464) Dividends and interest on capital paid to Non-controlling interests (59,466) (139,222) (337,192) Dividends and interest on capital paid (5,241,498) (20,092,750) (10,381,751) Net cash provided by (used in) financing activities (12,115,317) (31,508,758) (21,209,044) Net increase (decrease) in cash and cash equivalents 56,959,188 40,508,364 (39,005,616) Cash and cash equivalents at the beginning of the period 69,402,868 68,470,071 93,514,459 Effects of changes in exchange rates on cash and cash equivalents (44,268,211) (26,884,590) 13,961,228 Cash and cash equivalents at the end of the period 3a 82,093,845 82,093,845 68,470,071 Cash 37,087,047 18,668,746 Interbank deposits 3,294,168 15,325,985 Securities purchased under agreements to resell - Funded position 41,712,630 34,475,340 The accompanying notes are an integral part of these financial statements Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 3.5

ITAÚ UNIBANCO HOLDING S.A. Notes to the Prudential Consolidated Financial Statements Exercise from January 1 to December 31, 2018 and 2017 (In thousands of Reais) Note 1 - Operations Itaú Unibanco Holding S.A. (ITAÚ UNIBANCO HOLDING) is a publicly-held company, organized and existing under the Laws of Brazil. The head office is located at Praça Alfredo Egydio de Souza Aranha, n° 100, in the city of São Paulo, state of São Paulo, Brazil. ITAÚ UNIBANCO HOLDING is present in 19 countries and offers a wide variety of financial products and services to individual and corporate customers, through its branches, subsidiaries and international affiliates. It operates in all modalities of banking activities, by means of its portfolios: commercial; investment; mortgage loans; loans, financing and investment; lease and foreign exchange transactions. ITAÚ UNIBANCO HOLDING is a holding company controlled by Itaú Unibanco Participações S.A. (“IUPAR”), a holding company which owns 51% of our common shares, and which is jointly controlled by (i) Itaúsa Investimentos Itaú S.A. (“Itaúsa”), a holding company controlled by members of the Egydio de Souza Aranha family, and (ii) Companhia E. Johnston de Participações (“E. Johnston”), a holding company controlled by the Moreira Salles family. Itaúsa also directly holds 38.7% of ITAÚ UNIBANCO HOLDING common shares. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.1 ITAÚ UNIBANCO HOLDING S.A. Notes to the Prudential Consolidated Financial Statements Exercise from January 1 to December 31, 2018 and 2017 (In thousands of Reais) Note 1 - Operations Itaú Unibanco Holding S.A. (ITAÚ UNIBANCO HOLDING) is a publicly-held company, organized and existing under the Laws of Brazil. The head office is located at Praça Alfredo Egydio de Souza Aranha, n° 100, in the city of São Paulo, state of São Paulo, Brazil. ITAÚ UNIBANCO HOLDING is present in 19 countries and offers a wide variety of financial products and services to individual and corporate customers, through its branches, subsidiaries and international affiliates. It operates in all modalities of banking activities, by means of its portfolios: commercial; investment; mortgage loans; loans, financing and investment; lease and foreign exchange transactions. ITAÚ UNIBANCO HOLDING is a holding company controlled by Itaú Unibanco Participações S.A. (“IUPAR”), a holding company which owns 51% of our common shares, and which is jointly controlled by (i) Itaúsa Investimentos Itaú S.A. (“Itaúsa”), a holding company controlled by members of the Egydio de Souza Aranha family, and (ii) Companhia E. Johnston de Participações (“E. Johnston”), a holding company controlled by the Moreira Salles family. Itaúsa also directly holds 38.7% of ITAÚ UNIBANCO HOLDING common shares. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.1

Note 2 – Presentation of the Consolidated Financial Statements a) Presentation The Consolidated Financial Statements of ITAÚ UNIBANCO HOLDING PRUDENTIAL have been prepared in accordance with CMN Resolution No. 4,280 of October 31, 2013 and BACEN Circular No. 3,701 of March 13, 2014, and they fit for the specific purposes of this resolution. The definitions and criteria for the valuation and recognition of assets, liabilities, income and expenses set forth in the regulation embodied in the Accounting Plan for National Financial System Institutions (COSIF) were applied. For entities not subject to the rules of COSIF, necessary adjustments were made to ensure that the valuation and recognition of assets, liabilities, income and expenses could properly reflected the required regulation. As set forth in the sole paragraph of article 7 of BACEN Circular No. 3,068, of November 8, 2001, securities classified as trading securities (Note 3c) are presented in the Prudential Consolidated Balance Sheet under Current Assets regardless of their maturity dates. Lease Operations are presented, at present value, in the Prudential Consolidated Balance Sheet, and the related income and expenses, which represent the financial result of these operations, are presented, grouped together, under loan, lease and other loan operations in the Statement of Income. Advances on exchange contracts are reclassified from Other Liabilities – Foreign exchange portfolio to Loan Operations. The foreign exchange result is represented by variation and difference in rates on the balance sheet accounts denominated in foreign currencies. ITAU UNIBANCO HOLDING PRUDENTIAL prepares its Consolidated Financial Statements, which are available on its Investor Relations website (www.itau.com.br/investor-relations). b) Consolidation The consolidated financial statements of ITAÚ UNIBANCO HOLDING PRUDENTIAL include the consolidation of entities located either in Brazil or abroad, over which it has direct or indirect control, except st for the insurance group which is not governed by item 6, article 1 of CMN Resolution No. 4,280, of October 31, 2013. Balances of result and balance sheet accounts, and consolidated intercompany transactions have been eliminated. Controlled entities are all entities to which ITAÚ UNIBANCO HOLDING PRUDENTIAL is exposed, or is entitled to variable returns of involvement with the entity and that can affect these returns through its power on the entity. Control assessment is conducted on a continuous basis. Controlled entities are consolidated from the date control is established to the date on which control ceases to exist. The consolidated financial statements are prepared using consistent accounting policies. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.2 Note 2 – Presentation of the Consolidated Financial Statements a) Presentation The Consolidated Financial Statements of ITAÚ UNIBANCO HOLDING PRUDENTIAL have been prepared in accordance with CMN Resolution No. 4,280 of October 31, 2013 and BACEN Circular No. 3,701 of March 13, 2014, and they fit for the specific purposes of this resolution. The definitions and criteria for the valuation and recognition of assets, liabilities, income and expenses set forth in the regulation embodied in the Accounting Plan for National Financial System Institutions (COSIF) were applied. For entities not subject to the rules of COSIF, necessary adjustments were made to ensure that the valuation and recognition of assets, liabilities, income and expenses could properly reflected the required regulation. As set forth in the sole paragraph of article 7 of BACEN Circular No. 3,068, of November 8, 2001, securities classified as trading securities (Note 3c) are presented in the Prudential Consolidated Balance Sheet under Current Assets regardless of their maturity dates. Lease Operations are presented, at present value, in the Prudential Consolidated Balance Sheet, and the related income and expenses, which represent the financial result of these operations, are presented, grouped together, under loan, lease and other loan operations in the Statement of Income. Advances on exchange contracts are reclassified from Other Liabilities – Foreign exchange portfolio to Loan Operations. The foreign exchange result is represented by variation and difference in rates on the balance sheet accounts denominated in foreign currencies. ITAU UNIBANCO HOLDING PRUDENTIAL prepares its Consolidated Financial Statements, which are available on its Investor Relations website (www.itau.com.br/investor-relations). b) Consolidation The consolidated financial statements of ITAÚ UNIBANCO HOLDING PRUDENTIAL include the consolidation of entities located either in Brazil or abroad, over which it has direct or indirect control, except st for the insurance group which is not governed by item 6, article 1 of CMN Resolution No. 4,280, of October 31, 2013. Balances of result and balance sheet accounts, and consolidated intercompany transactions have been eliminated. Controlled entities are all entities to which ITAÚ UNIBANCO HOLDING PRUDENTIAL is exposed, or is entitled to variable returns of involvement with the entity and that can affect these returns through its power on the entity. Control assessment is conducted on a continuous basis. Controlled entities are consolidated from the date control is established to the date on which control ceases to exist. The consolidated financial statements are prepared using consistent accounting policies. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.2

The Consolidated Financial Statements comprise ITAÚ UNIBANCO HOLDING PRUDENTIAL its direct and indirect subsidiaries. We present below the main subsidiaries which together represent over 95% of total consolidated assets: Interest % in total Interest % in voting Functional Country of Activity capital at capital at (*) Incorporation currency 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Domestic Brazil Financial Institution Banco Itaú BBA S.A. 100.00% 100.00% 100.00% 100.00% Banco Itaú Consignado S.A. Brazil Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaucard S.A. Brazil Financial Institution 100.00% 100.00% 100.00% 100.00% Brazil Financial Institution Banco Itauleasing S.A. 100.00% 100.00% 100.00% 100.00% Dibens Leasing S.A. - Arrendamento Mercantil Brazil Leasing 100.00% 100.00% 100.00% 100.00% Financeira Itaú CBD S.A. Crédito, Financiamento e Investimento 50.00% 50.00% 50.00% 50.00% Brazil Consumer Finance Credit Hipercard Banco Múltiplo S.A. 100.00% 100.00% 100.00% 100.00% Brazil Financial Institution Itaú Corretora de Valores S.A. 100.00% 100.00% 100.00% 100.00% Brazil Broker Itaú Unibanco S.A. 100.00% 100.00% 100.00% 100.00% Brazil Financial Institution Luizacred S.A. Sociedade de Crédito, Financiamento e Investimento 50.00% 50.00% 50.00% 50.00% Brazil Consumer Finance Credit Redecard S.A. 100.00% 100.00% 100.00% 100.00% Brazil Acquier Foreign Itaú Corpbanca Colombia S.A. (Note 2c) Colombian Peso Colombia Financial Institution 25.28% 23.90% 25.28% 23.90% Banco Itaú (Suisse) SA Swiss Franc Switzerland Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaú Argentina S.A. Argentine Peso Argentina Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaú Paraguay S.A. Guarani Paraguay Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaú Uruguay S.A. Uruguayan Peso Uruguay Financial Institution 100.00% 100.00% 100.00% 100.00% Itau Bank, Ltd. Real Cayman Islands Financial Institution 100.00% 100.00% 100.00% 100.00% Itaú BBA Colombia S.A. Corporación Financiera Colombian Peso Colombia Financial Institution 100.00% 100.00% 100.00% 100.00% Itau BBA International plc Dollar United Kingdom Financial Institution 100.00% 100.00% 100.00% 100.00% Itau BBA USA Securities Inc. Real United States Broker 100.00% 100.00% 100.00% 100.00% Chile Financial Institution 38.14% 36.06% 38.14% 36.06% Itaú CorpBanca (Note 2c) Chilean Peso (*) All foreign branches and subsidiaries of ITAÚ UNIBANCO HOLDING PRUDENTIAL have functional currency equal to that of the controlling entity, except for CorpBanca New York Branch, which functional currency is the dollar. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.3 The Consolidated Financial Statements comprise ITAÚ UNIBANCO HOLDING PRUDENTIAL its direct and indirect subsidiaries. We present below the main subsidiaries which together represent over 95% of total consolidated assets: Interest % in total Interest % in voting Functional Country of Activity capital at capital at (*) Incorporation currency 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Domestic Brazil Financial Institution Banco Itaú BBA S.A. 100.00% 100.00% 100.00% 100.00% Banco Itaú Consignado S.A. Brazil Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaucard S.A. Brazil Financial Institution 100.00% 100.00% 100.00% 100.00% Brazil Financial Institution Banco Itauleasing S.A. 100.00% 100.00% 100.00% 100.00% Dibens Leasing S.A. - Arrendamento Mercantil Brazil Leasing 100.00% 100.00% 100.00% 100.00% Financeira Itaú CBD S.A. Crédito, Financiamento e Investimento 50.00% 50.00% 50.00% 50.00% Brazil Consumer Finance Credit Hipercard Banco Múltiplo S.A. 100.00% 100.00% 100.00% 100.00% Brazil Financial Institution Itaú Corretora de Valores S.A. 100.00% 100.00% 100.00% 100.00% Brazil Broker Itaú Unibanco S.A. 100.00% 100.00% 100.00% 100.00% Brazil Financial Institution Luizacred S.A. Sociedade de Crédito, Financiamento e Investimento 50.00% 50.00% 50.00% 50.00% Brazil Consumer Finance Credit Redecard S.A. 100.00% 100.00% 100.00% 100.00% Brazil Acquier Foreign Itaú Corpbanca Colombia S.A. (Note 2c) Colombian Peso Colombia Financial Institution 25.28% 23.90% 25.28% 23.90% Banco Itaú (Suisse) SA Swiss Franc Switzerland Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaú Argentina S.A. Argentine Peso Argentina Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaú Paraguay S.A. Guarani Paraguay Financial Institution 100.00% 100.00% 100.00% 100.00% Banco Itaú Uruguay S.A. Uruguayan Peso Uruguay Financial Institution 100.00% 100.00% 100.00% 100.00% Itau Bank, Ltd. Real Cayman Islands Financial Institution 100.00% 100.00% 100.00% 100.00% Itaú BBA Colombia S.A. Corporación Financiera Colombian Peso Colombia Financial Institution 100.00% 100.00% 100.00% 100.00% Itau BBA International plc Dollar United Kingdom Financial Institution 100.00% 100.00% 100.00% 100.00% Itau BBA USA Securities Inc. Real United States Broker 100.00% 100.00% 100.00% 100.00% Chile Financial Institution 38.14% 36.06% 38.14% 36.06% Itaú CorpBanca (Note 2c) Chilean Peso (*) All foreign branches and subsidiaries of ITAÚ UNIBANCO HOLDING PRUDENTIAL have functional currency equal to that of the controlling entity, except for CorpBanca New York Branch, which functional currency is the dollar. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.3

c) Business development Itaú CorpBanca st The ITAÚ CORPBANCA is controlled as of April 1 , 2016 by ITAÚ UNIBANCO HOLDING PRUDENTIAL. On the same date, ITAU UNIBANCO HOLDING entered into a shareholders’ agreement with CORP GROUP, which sets forth, among others, the right of ITAÚ UNIBANCO HOLDING and CORP GROUP to appoint members for the Board of Directors of ITAÚ CORPBANCA in accordance to their interests in capital stock, and this group of shareholders will have the right to appoint the majority of members of the Board of Directors of ITAÚ CORPBANCA and ITAÚ UNIBANCO HOLDING will be entitled to appoint the majority of members elected by this block. ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its subsidiary ITB Holding Brasil Participações Ltda., indirectly acquired the following additional interests in the ITAU CORPBANCA’s capital: • On September 14, 2017 – 1,800,000,000 shares (0.35%) for the amount of R$ 55,6 million, then holding 36.06%; • On October 12, 2018 – 10,651,555,020 shares (2.08%) for the amount of R$ 362.9 million, then holding 38.14%. Acquisition of minority interest in XP Investimentos S.A. On May 11, 2017, ITAÚ UNIBANCO HOLDING, through its subsidiary ITAÚ UNIBANCO, entered into an agreement for purchase and sale of shares with XP Controle Participações S.A. (XP CONTROLE), G.A. Brasil IV Fundo de Investimento em Participações, Dyna III Fundo de Investimento em Participações, among other parties (SELLERS), for acquisition of 49.9% of total capital (of which 30.1% of common shares) of XP Investimentos S.A. (XP HOLDING), through capital contribution in the amount of R$ 600 and acquisition of shares issued by XP HOLDING held by the SELLERS in the amount of R$ 5,700, and such amounts were restated pursuant to contractual provision, totaling R$ 6,650 (FIRST ACQUISITION). A portion of this amount were withheld as a guarantee for possible future obligations of XP CONTROLE, for a 10-year period, and possible remaining balance will be paid to XP CONTROLE at the end of this term. In addition to the FIRST ACQUISITION, the agreement sets forth only one additional acquisition in 2022, subject to future BACEN’s approval. Should it be approved, it will enable ITAÚ UNIBANCO to hold up to 62.4% of XP HOLDING’s total capital (equivalent to 40.0% of common shares) based on a multiple of result (19 times) of XP HOLDING, therefore being clear that the control over XP Group will remain unchanged, with XP CONTROLE’s shareholders. ITAÚ UNIBANCO will act as minority partner. Effective acquisitions and financial settlements occurred on August 31, 2018, after the satisfaction of certain contractual conditions and obtainment of regulatory and government authorizations required. Citibank’s Retail Operations On October 08, 2016, ITAÚ UNIBANCO HOLDING PRUDENTIAL entered, by means of its subsidiaries Itaú Unibanco S.A. (ITAÚ UNIBANCO) and Itaú Corretora de Valores S.A., into a share purchase and sale agreement with Banco Citibank S.A. and with other companies of its conglomerate (CITIBANK) for the acquisition of the retail banking activities carried out by Citibank in Brazil, including loans, deposits, credit cards, branches, assets under management and insurance brokerage, as well as the equity investments held by CITIBANK in TECBAN – Tecnologia Bancária S.A. (representing 5.64% of its capital) and in CIBRASEC – Companhia Brasileira de Securitização (representing 3.60% of its capital), for R$ 627,795. The operation was structured in three phases: i. Acquisition of retail operations, cards and insurance brokerage on October 31, 2017; st ii. Acquisition of securities brokerage on December 1 , 2017; iii. Acquisition of ownership interest in TECBAN and CIBRASEC on December 26, 2017. The difference between the amount paid and net assets acquired resulted in the recognition of goodwill due to expected future profitability on the acquisition date of R$ 630,629. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.4 c) Business development Itaú CorpBanca st The ITAÚ CORPBANCA is controlled as of April 1 , 2016 by ITAÚ UNIBANCO HOLDING PRUDENTIAL. On the same date, ITAU UNIBANCO HOLDING entered into a shareholders’ agreement with CORP GROUP, which sets forth, among others, the right of ITAÚ UNIBANCO HOLDING and CORP GROUP to appoint members for the Board of Directors of ITAÚ CORPBANCA in accordance to their interests in capital stock, and this group of shareholders will have the right to appoint the majority of members of the Board of Directors of ITAÚ CORPBANCA and ITAÚ UNIBANCO HOLDING will be entitled to appoint the majority of members elected by this block. ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its subsidiary ITB Holding Brasil Participações Ltda., indirectly acquired the following additional interests in the ITAU CORPBANCA’s capital: • On September 14, 2017 – 1,800,000,000 shares (0.35%) for the amount of R$ 55,6 million, then holding 36.06%; • On October 12, 2018 – 10,651,555,020 shares (2.08%) for the amount of R$ 362.9 million, then holding 38.14%. Acquisition of minority interest in XP Investimentos S.A. On May 11, 2017, ITAÚ UNIBANCO HOLDING, through its subsidiary ITAÚ UNIBANCO, entered into an agreement for purchase and sale of shares with XP Controle Participações S.A. (XP CONTROLE), G.A. Brasil IV Fundo de Investimento em Participações, Dyna III Fundo de Investimento em Participações, among other parties (SELLERS), for acquisition of 49.9% of total capital (of which 30.1% of common shares) of XP Investimentos S.A. (XP HOLDING), through capital contribution in the amount of R$ 600 and acquisition of shares issued by XP HOLDING held by the SELLERS in the amount of R$ 5,700, and such amounts were restated pursuant to contractual provision, totaling R$ 6,650 (FIRST ACQUISITION). A portion of this amount were withheld as a guarantee for possible future obligations of XP CONTROLE, for a 10-year period, and possible remaining balance will be paid to XP CONTROLE at the end of this term. In addition to the FIRST ACQUISITION, the agreement sets forth only one additional acquisition in 2022, subject to future BACEN’s approval. Should it be approved, it will enable ITAÚ UNIBANCO to hold up to 62.4% of XP HOLDING’s total capital (equivalent to 40.0% of common shares) based on a multiple of result (19 times) of XP HOLDING, therefore being clear that the control over XP Group will remain unchanged, with XP CONTROLE’s shareholders. ITAÚ UNIBANCO will act as minority partner. Effective acquisitions and financial settlements occurred on August 31, 2018, after the satisfaction of certain contractual conditions and obtainment of regulatory and government authorizations required. Citibank’s Retail Operations On October 08, 2016, ITAÚ UNIBANCO HOLDING PRUDENTIAL entered, by means of its subsidiaries Itaú Unibanco S.A. (ITAÚ UNIBANCO) and Itaú Corretora de Valores S.A., into a share purchase and sale agreement with Banco Citibank S.A. and with other companies of its conglomerate (CITIBANK) for the acquisition of the retail banking activities carried out by Citibank in Brazil, including loans, deposits, credit cards, branches, assets under management and insurance brokerage, as well as the equity investments held by CITIBANK in TECBAN – Tecnologia Bancária S.A. (representing 5.64% of its capital) and in CIBRASEC – Companhia Brasileira de Securitização (representing 3.60% of its capital), for R$ 627,795. The operation was structured in three phases: i. Acquisition of retail operations, cards and insurance brokerage on October 31, 2017; st ii. Acquisition of securities brokerage on December 1 , 2017; iii. Acquisition of ownership interest in TECBAN and CIBRASEC on December 26, 2017. The difference between the amount paid and net assets acquired resulted in the recognition of goodwill due to expected future profitability on the acquisition date of R$ 630,629. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.4

Gestora de Inteligência de Crédito On January 21, 2016, ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its subsidiary ITAÚ UNIBANCO, executing a non-binding Memorandum of Understanding with Banco Bradesco S.A., Banco do Brasil S.A., Banco Santander S.A. and Caixa Econômica Federal, aiming at the creation of a credit intelligence bureau that will develop a databank with the purpose of aggregating, reconciling and addressing master file and credit data of individuals and legal entities. Gestora de Inteligência de Crédito S.A., located in the city of São Paulo, was organized as a corporation, and each of its shareholders will have a 20% interest in its capital. After compliance with conditions precedent and approval by proper regulatory authorities, the operation was consummated on June 14, 2017. Ownership interest acquired will be assessed under the equity method. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.5 Gestora de Inteligência de Crédito On January 21, 2016, ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its subsidiary ITAÚ UNIBANCO, executing a non-binding Memorandum of Understanding with Banco Bradesco S.A., Banco do Brasil S.A., Banco Santander S.A. and Caixa Econômica Federal, aiming at the creation of a credit intelligence bureau that will develop a databank with the purpose of aggregating, reconciling and addressing master file and credit data of individuals and legal entities. Gestora de Inteligência de Crédito S.A., located in the city of São Paulo, was organized as a corporation, and each of its shareholders will have a 20% interest in its capital. After compliance with conditions precedent and approval by proper regulatory authorities, the operation was consummated on June 14, 2017. Ownership interest acquired will be assessed under the equity method. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.5

Note 3 – Summary of the main accounting practices a) Cash and cash equivalents - is defined as cash and current accounts in banks, considered in the Consolidated Statement of Income in the heading Cash and cash equivalents, Interbank Deposits and Money market that have original maturities of up to 90 days or less. b) Interbank investments, Remunerated restricted credits – Brazilian Central Bank, Remunerated deposits, Deposits received under securities repurchase agreements, funds from acceptance and issuance of securities, Borrowing and onlending, Subordinated debt and Other receivables and payables – Operations with fixed remuneration and charges are accounted for at present value. Operations with post-fixed or floating remuneration and charges are accounted for at the adjusted principal amount. Operations subject to foreign exchange variation are accounted for at the corresponding amount in local currency. Liabilities are presented net of the transaction costs incurred, when relevant, calculated pro rate die. c) Securities - Recorded at the cost of acquisition restated by the index and/or effective interest rate and presented in the Balance Sheet, according to BACEN Circular No. 3,068, of November 8, 2001. Securities are classified into the following categories: · Trading securities – securities acquired to be actively and frequently traded, and adjusted to market value, with a counter-entry to the results for the period; · Available-for-sale securities – securities that can be negotiated but are not acquired to be actively and frequently traded, adjusted to their market value with a counter-entry to an account disclosed in stockholders’ equity; · Held-to-maturity securities – securities, except for non-redeemable shares, for which the bank has the financial condition and intends or is required to hold them in the portfolio up to their maturity, are recorded at cost of acquisition, or market value, whenever these are transferred from another category. The securities are adjusted using the accrual method through their maturity date, not being adjusted to market value. Gains and losses on available-for-sale securities, when realized, are recognized at the trade date in the statement of income, with a counter-entry to a specific stockholders’ equity account. Decreases in the market value of available-for-sale and held-to-maturity securities below their related costs, resulting from non-temporary reasons, are recorded in results as realized losses. d) Derivative financial instruments - these are classified on the date of their acquisition, according to management's intention of using them either as a hedge or not, according to BACEN Circular No. 3,082, of January 30, 2002. Transactions involving financial instruments, carried out upon the client’s request, for their own account, or which do not comply with the hedging criteria (mainly derivatives used to manage the overall risk exposure), are stated at market value, including realized and unrealized gains and losses, which are recorded directly in the Statement of Income. The derivatives that are used for protection against risk exposure or to modify the characteristics of financial assets and liabilities, which have changes in market value highly associated with those of the items being protected at the beginning and throughout the duration of the contract, and which are found effective to reduce the risk related to the exposure being protected, are classified as a hedge, in accordance with their nature: · Market Risk Hedge – financial assets and liabilities, as well as their related financial instruments, are accounted for at their market value plus realized and unrealized gains and losses, which are recorded directly in the Statement of Income. · Cash Flow Hedge - the effective amount of the hedge of financial assets and liabilities, as well as their related financial instruments, are accounted for at their market value plus realized and unrealized gains and losses, net of tax effects, when applicable, and recorded in a specific account in stockholders’ equity. The ineffective portion of the hedge is recorded directly in the Statement of Income. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.6 Note 3 – Summary of the main accounting practices a) Cash and cash equivalents - is defined as cash and current accounts in banks, considered in the Consolidated Statement of Income in the heading Cash and cash equivalents, Interbank Deposits and Money market that have original maturities of up to 90 days or less. b) Interbank investments, Remunerated restricted credits – Brazilian Central Bank, Remunerated deposits, Deposits received under securities repurchase agreements, funds from acceptance and issuance of securities, Borrowing and onlending, Subordinated debt and Other receivables and payables – Operations with fixed remuneration and charges are accounted for at present value. Operations with post-fixed or floating remuneration and charges are accounted for at the adjusted principal amount. Operations subject to foreign exchange variation are accounted for at the corresponding amount in local currency. Liabilities are presented net of the transaction costs incurred, when relevant, calculated pro rate die. c) Securities - Recorded at the cost of acquisition restated by the index and/or effective interest rate and presented in the Balance Sheet, according to BACEN Circular No. 3,068, of November 8, 2001. Securities are classified into the following categories: · Trading securities – securities acquired to be actively and frequently traded, and adjusted to market value, with a counter-entry to the results for the period; · Available-for-sale securities – securities that can be negotiated but are not acquired to be actively and frequently traded, adjusted to their market value with a counter-entry to an account disclosed in stockholders’ equity; · Held-to-maturity securities – securities, except for non-redeemable shares, for which the bank has the financial condition and intends or is required to hold them in the portfolio up to their maturity, are recorded at cost of acquisition, or market value, whenever these are transferred from another category. The securities are adjusted using the accrual method through their maturity date, not being adjusted to market value. Gains and losses on available-for-sale securities, when realized, are recognized at the trade date in the statement of income, with a counter-entry to a specific stockholders’ equity account. Decreases in the market value of available-for-sale and held-to-maturity securities below their related costs, resulting from non-temporary reasons, are recorded in results as realized losses. d) Derivative financial instruments - these are classified on the date of their acquisition, according to management's intention of using them either as a hedge or not, according to BACEN Circular No. 3,082, of January 30, 2002. Transactions involving financial instruments, carried out upon the client’s request, for their own account, or which do not comply with the hedging criteria (mainly derivatives used to manage the overall risk exposure), are stated at market value, including realized and unrealized gains and losses, which are recorded directly in the Statement of Income. The derivatives that are used for protection against risk exposure or to modify the characteristics of financial assets and liabilities, which have changes in market value highly associated with those of the items being protected at the beginning and throughout the duration of the contract, and which are found effective to reduce the risk related to the exposure being protected, are classified as a hedge, in accordance with their nature: · Market Risk Hedge – financial assets and liabilities, as well as their related financial instruments, are accounted for at their market value plus realized and unrealized gains and losses, which are recorded directly in the Statement of Income. · Cash Flow Hedge - the effective amount of the hedge of financial assets and liabilities, as well as their related financial instruments, are accounted for at their market value plus realized and unrealized gains and losses, net of tax effects, when applicable, and recorded in a specific account in stockholders’ equity. The ineffective portion of the hedge is recorded directly in the Statement of Income. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.6

· Net Investment Hedge of Foreign Operations - accounted for similarly to cash flow hedge, i.e. the portion of gains or losses on a hedging instrument that is determined to be an effective hedge is recognized in stockholders’ equity, and reclassified to income for the period in the event of the disposal of the foreign operation. The ineffective portion is recognized in income for the period. e) Loan, lease and other credit operations (operations with credit granting characteristics) – These transactions are recorded at present value and calculated pro rata die based on the variation of the contracted index and interest rate, and are recorded on basis until the 60th day overdue in financial companies, according to the estimates of receipt. After the 60th day, income is recognized upon the effective receipt of installments. Credit card operations include receivables arising from the purchases made by cardholders. Funds corresponding to these amounts to be paid to the accrediting organization are in liabilities, in the heading Interbank Accounts – Receipts and Payments Pending Settlement. f) Allowance for loan losses - the balance of the allowance for loan losses was recorded based on a credit risk analysis, at an amount considered sufficient to cover loan losses according to the rules determined by CMN Resolution No. 2,682 of December 21, 1999, which are: · Provisions are recorded from the date loans are granted, based on the client’s risk rating and on the periodic quality evaluation of clients and industries, and not only in the event of default; · Taking into account default exclusively, the write-off as losses occur after 360 days of credits have matured or after 540 days for operations that mature after a period of 36 months. The criterion adopted for recognition of a provision for Financial Guarantees pledged was based on the Expected Loss model. g) Other assets - They are comprised of Assets Held for Sale, relating to real estate vehicles and other assets available for sale (own and not in use, received as payment in kind or resulting from enforcement of guarantees). These assets are adjusted to market value by setting up a provision in accordance with standards in force and prepaid expenses, corresponding to disbursements, the benefit of which will occur in future periods. st From January 1 , 2015, ITAÚ UNIBANCO HOLDING PRUDENTIAL adopts the option provided for in BACEN Circular No. 3,693, of December 20, 2013, which establishes accounting procedures for the compensation of local correspondents in connection with credit origination. These compensation amounts st for local correspondents in connection with transactions originated after January 1 , 2017 will be fully recorded as expenses for the period. h) Investments - Include goodwill identified in the acquisition of affiliates and joint ventures, net of any accumulated impairment loss. They are initially recognized at acquisition cost and are subsequently accounted for under the equity method. · Affiliates: are those companies in which ITAÚ UNIBANCO HOLDING PRUDENTIAL has significant influence, but it does not hold control over them. · Joint Ventures: ITAÚ UNIBANCO HOLDING PRUDENTIAL defines joint venture when it is entitled to rights and obligations for related liabilities. i) Fixed assets - Are account for at their acquisition cost less accumulated depreciation and adjusted for impairment, as applicable. Depreciation is calculated under the straight-line method using rates based on the estimated useful lives of these assets. Such rates and other details are presented in Note 11a I. Residual values and useful lives of assets are reviewed and adjusted, if appropriate, at the end of each period. ITAÚ UNIBANCO HOLDING PRUDENTIAL reviews its assets in order to identify indications of impairment in their recoverable amounts. The recoverable amount of an asset is defined as the higher of its fair value less costs to sell and its value in use. For assessment purposes, assets are grouped at the lowest level for which independent cash flows can be identified (cash-generating units). Assessment may be made at an individual asset level when the fair value less its cost to sell may be reliably determined. j) Goodwill – corresponds to the amount paid in excess for the purchase of investments and is amortized based on expected future profitability or as realized. It is tested semiannually for impairment. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.7 · Net Investment Hedge of Foreign Operations - accounted for similarly to cash flow hedge, i.e. the portion of gains or losses on a hedging instrument that is determined to be an effective hedge is recognized in stockholders’ equity, and reclassified to income for the period in the event of the disposal of the foreign operation. The ineffective portion is recognized in income for the period. e) Loan, lease and other credit operations (operations with credit granting characteristics) – These transactions are recorded at present value and calculated pro rata die based on the variation of the contracted index and interest rate, and are recorded on basis until the 60th day overdue in financial companies, according to the estimates of receipt. After the 60th day, income is recognized upon the effective receipt of installments. Credit card operations include receivables arising from the purchases made by cardholders. Funds corresponding to these amounts to be paid to the accrediting organization are in liabilities, in the heading Interbank Accounts – Receipts and Payments Pending Settlement. f) Allowance for loan losses - the balance of the allowance for loan losses was recorded based on a credit risk analysis, at an amount considered sufficient to cover loan losses according to the rules determined by CMN Resolution No. 2,682 of December 21, 1999, which are: · Provisions are recorded from the date loans are granted, based on the client’s risk rating and on the periodic quality evaluation of clients and industries, and not only in the event of default; · Taking into account default exclusively, the write-off as losses occur after 360 days of credits have matured or after 540 days for operations that mature after a period of 36 months. The criterion adopted for recognition of a provision for Financial Guarantees pledged was based on the Expected Loss model. g) Other assets - They are comprised of Assets Held for Sale, relating to real estate vehicles and other assets available for sale (own and not in use, received as payment in kind or resulting from enforcement of guarantees). These assets are adjusted to market value by setting up a provision in accordance with standards in force and prepaid expenses, corresponding to disbursements, the benefit of which will occur in future periods. st From January 1 , 2015, ITAÚ UNIBANCO HOLDING PRUDENTIAL adopts the option provided for in BACEN Circular No. 3,693, of December 20, 2013, which establishes accounting procedures for the compensation of local correspondents in connection with credit origination. These compensation amounts st for local correspondents in connection with transactions originated after January 1 , 2017 will be fully recorded as expenses for the period. h) Investments - Include goodwill identified in the acquisition of affiliates and joint ventures, net of any accumulated impairment loss. They are initially recognized at acquisition cost and are subsequently accounted for under the equity method. · Affiliates: are those companies in which ITAÚ UNIBANCO HOLDING PRUDENTIAL has significant influence, but it does not hold control over them. · Joint Ventures: ITAÚ UNIBANCO HOLDING PRUDENTIAL defines joint venture when it is entitled to rights and obligations for related liabilities. i) Fixed assets - Are account for at their acquisition cost less accumulated depreciation and adjusted for impairment, as applicable. Depreciation is calculated under the straight-line method using rates based on the estimated useful lives of these assets. Such rates and other details are presented in Note 11a I. Residual values and useful lives of assets are reviewed and adjusted, if appropriate, at the end of each period. ITAÚ UNIBANCO HOLDING PRUDENTIAL reviews its assets in order to identify indications of impairment in their recoverable amounts. The recoverable amount of an asset is defined as the higher of its fair value less costs to sell and its value in use. For assessment purposes, assets are grouped at the lowest level for which independent cash flows can be identified (cash-generating units). Assessment may be made at an individual asset level when the fair value less its cost to sell may be reliably determined. j) Goodwill – corresponds to the amount paid in excess for the purchase of investments and is amortized based on expected future profitability or as realized. It is tested semiannually for impairment. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.7

k) Intangible assets – It is composed of: (i) Goodwill amount paid upon acquisition of the company, transferred to intangible assets due to merger of the acquired company’s equity into the acquirer company; (ii) Right-of- use, as well as rights on the acquisition of payrolls and association agreements, amortized according to agreement terms or as economic benefits flow to the company; and (iii) Software and client portfolio, amortized in terms from five to ten years. Intangible assets with definite useful lives are amortized under the straight-line method at their estimated useful lives and those with indefinite useful lives are tested on a half-yearly basis to identify possible impairment losses. l) Capital Transactions with Non-Controlling Stockholders - Changes in the interest in a subsidiary not giving rise to loss of control are accounted for as capital transactions, and any difference between the amount paid and the amount corresponding to the non-controlling stockholders is directly recognized in Consolidated Stockholders’ Equity. m) Contingent Assets and Liabilities and Legal Liabilities, Tax and Social Security - are potential rights and obligations arising from past events for which materialization depends on uncertain future events. They are measured using best estimates through the use of models and criteria which allow their appropriate measurement even if there is uncertainty as to their ultimate timing and amount, and the criteria are detailed in Note 8. These contingencies are evaluated based on Management’s best estimates, and are classified as: · Probable: in which liabilities are recognized in the consolidated balance sheet under Other Liabilities; · Possible: which are disclosed in the Consolidated Financial Statements, but no provision is recorded; · Remote: which require neither a provision nor disclosure. Contingent assets are not recognized in the Consolidated Statement of Income, except when Management of ITAÚ UNIBANCO HOLDING PRUDENTIAL understands that its realization is practically certain and, in general corresponds to lawsuits with favorable sentences in final and unappealable judgments and by the withdrawal of lawsuits as a result of a settlement payment that has been received as a result of an agreement to offset against an existing liability. The amount of escrow deposits is updated in compliance with current legislation. Contingencies guaranteed by indemnity clauses in privatization processes and with liquidity are only recognized upon judicial notification with the simultaneous recognition of receivables, without any effect on results. Legal Liabilities, Tax and Social Security Represented by amounts payable related to tax liabilities, the legality or constitutionality of which are subject to judicial defense, recognized in the full amount under discussion. n) Provision for Financial Guarantees Provided – Recognized based on the expected loss model, in an amount sufficient to cover any probable losses over the whole guarantee period. o) Income tax and social contribution – There are two components of the provision for income tax and social contribution: current and deferred. Current income tax expense approximates taxes to be paid or recovered for the applicable period. Deferred income tax and social contribution represented by deferred tax assets and liabilities are obtained based on the differences between the tax bases of assets and liabilities and the amounts reported in the financial statements at each year end. Deferred tax assets are only recognized when it is probable that future taxable income will be available for offsetting. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.8 k) Intangible assets – It is composed of: (i) Goodwill amount paid upon acquisition of the company, transferred to intangible assets due to merger of the acquired company’s equity into the acquirer company; (ii) Right-of- use, as well as rights on the acquisition of payrolls and association agreements, amortized according to agreement terms or as economic benefits flow to the company; and (iii) Software and client portfolio, amortized in terms from five to ten years. Intangible assets with definite useful lives are amortized under the straight-line method at their estimated useful lives and those with indefinite useful lives are tested on a half-yearly basis to identify possible impairment losses. l) Capital Transactions with Non-Controlling Stockholders - Changes in the interest in a subsidiary not giving rise to loss of control are accounted for as capital transactions, and any difference between the amount paid and the amount corresponding to the non-controlling stockholders is directly recognized in Consolidated Stockholders’ Equity. m) Contingent Assets and Liabilities and Legal Liabilities, Tax and Social Security - are potential rights and obligations arising from past events for which materialization depends on uncertain future events. They are measured using best estimates through the use of models and criteria which allow their appropriate measurement even if there is uncertainty as to their ultimate timing and amount, and the criteria are detailed in Note 8. These contingencies are evaluated based on Management’s best estimates, and are classified as: · Probable: in which liabilities are recognized in the consolidated balance sheet under Other Liabilities; · Possible: which are disclosed in the Consolidated Financial Statements, but no provision is recorded; · Remote: which require neither a provision nor disclosure. Contingent assets are not recognized in the Consolidated Statement of Income, except when Management of ITAÚ UNIBANCO HOLDING PRUDENTIAL understands that its realization is practically certain and, in general corresponds to lawsuits with favorable sentences in final and unappealable judgments and by the withdrawal of lawsuits as a result of a settlement payment that has been received as a result of an agreement to offset against an existing liability. The amount of escrow deposits is updated in compliance with current legislation. Contingencies guaranteed by indemnity clauses in privatization processes and with liquidity are only recognized upon judicial notification with the simultaneous recognition of receivables, without any effect on results. Legal Liabilities, Tax and Social Security Represented by amounts payable related to tax liabilities, the legality or constitutionality of which are subject to judicial defense, recognized in the full amount under discussion. n) Provision for Financial Guarantees Provided – Recognized based on the expected loss model, in an amount sufficient to cover any probable losses over the whole guarantee period. o) Income tax and social contribution – There are two components of the provision for income tax and social contribution: current and deferred. Current income tax expense approximates taxes to be paid or recovered for the applicable period. Deferred income tax and social contribution represented by deferred tax assets and liabilities are obtained based on the differences between the tax bases of assets and liabilities and the amounts reported in the financial statements at each year end. Deferred tax assets are only recognized when it is probable that future taxable income will be available for offsetting. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.8

The Income Tax and Social Contribution expense is recognized in the Consolidated Statement of Income under Income Tax and Social Contribution, except when it refers to items directly recognized in Stockholders’ Equity, such as: tax on market value measurement of available-for-sale financial assets, post- employment benefits and tax on cash flow hedges and hedge of net investment in foreign operations. Subsequently, these items are recognized in income together with the recognition of the gain/loss originally deferred. Changes in tax legislation and rates are recognized in the Consolidated statement of income under Income tax and social contribution in the period in which they are enacted. Interest and fines are recognized in the consolidated statement of income under General and administrative expenses. Tax rates, as well as their calculation bases, are detailed in Note 10. p) Deferred income – this refers to: (i) unexpired interest received in advance that is recognized in income as earned, and (ii) the negative goodwill on acquisition of investments arising from expected future losses, which has not been absorbed in the consolidation process. q) Post-employments benefits Pension plans - defined benefit plans The liability (or asset, as the case may be) recognized in the consolidated balance sheet with respect to the defined benefit plan corresponds to the present value of the defined benefit obligations on the balance sheet date less the fair value of the plan assets. The defined benefit obligation is annually calculated by an independent actuarial consulting company using the projected unit credit method. The present value of the defined benefit obligation is determined by discounting the estimated amount of future cash flows of benefit payments based on the Brazilian treasury long term securities denominated in Reais and with maturity periods similar to the term of the pension plan liabilities. Pension plans - defined contribution For defined contribution plans, contributions to plans made by ITAÚ UNIBANCO HOLDING PRUDENTIAL, through pension plan funds, are recognized as an expenses when due. Other post-employment benefit obligations These obligations are assessed annually by independent and qualified actuaries, and the costs expected from these benefits are accrued during the length of service and gains and losses arising from adjustments and changes in actuarial assumptions are debited from or credited to stockholders’ equity in Equity asset valuation adjustment in the period in which they occur. r) Foreign currency translation I - Functional and presentation currency The Consolidated Financial Statements of ITAÚ UNIBANCO HOLDING PRUDENTIAL are presented in Brazilian Reais, which is its functional and presentation currency. For each subsidiary and investment in associates and joint ventures, ITAÚ UNIBANCO HOLDING PRUDENTIAL defined the functional currency as the currency of the primary economic environment in which the entity operates. II - Foreign Currency Transactions Foreign currency transactions are translated using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses are recognized in the Consolidated Statement of Income, unless they are related to cash flow hedges, which are recognized in Stockholders' Equity. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.9 The Income Tax and Social Contribution expense is recognized in the Consolidated Statement of Income under Income Tax and Social Contribution, except when it refers to items directly recognized in Stockholders’ Equity, such as: tax on market value measurement of available-for-sale financial assets, post- employment benefits and tax on cash flow hedges and hedge of net investment in foreign operations. Subsequently, these items are recognized in income together with the recognition of the gain/loss originally deferred. Changes in tax legislation and rates are recognized in the Consolidated statement of income under Income tax and social contribution in the period in which they are enacted. Interest and fines are recognized in the consolidated statement of income under General and administrative expenses. Tax rates, as well as their calculation bases, are detailed in Note 10. p) Deferred income – this refers to: (i) unexpired interest received in advance that is recognized in income as earned, and (ii) the negative goodwill on acquisition of investments arising from expected future losses, which has not been absorbed in the consolidation process. q) Post-employments benefits Pension plans - defined benefit plans The liability (or asset, as the case may be) recognized in the consolidated balance sheet with respect to the defined benefit plan corresponds to the present value of the defined benefit obligations on the balance sheet date less the fair value of the plan assets. The defined benefit obligation is annually calculated by an independent actuarial consulting company using the projected unit credit method. The present value of the defined benefit obligation is determined by discounting the estimated amount of future cash flows of benefit payments based on the Brazilian treasury long term securities denominated in Reais and with maturity periods similar to the term of the pension plan liabilities. Pension plans - defined contribution For defined contribution plans, contributions to plans made by ITAÚ UNIBANCO HOLDING PRUDENTIAL, through pension plan funds, are recognized as an expenses when due. Other post-employment benefit obligations These obligations are assessed annually by independent and qualified actuaries, and the costs expected from these benefits are accrued during the length of service and gains and losses arising from adjustments and changes in actuarial assumptions are debited from or credited to stockholders’ equity in Equity asset valuation adjustment in the period in which they occur. r) Foreign currency translation I - Functional and presentation currency The Consolidated Financial Statements of ITAÚ UNIBANCO HOLDING PRUDENTIAL are presented in Brazilian Reais, which is its functional and presentation currency. For each subsidiary and investment in associates and joint ventures, ITAÚ UNIBANCO HOLDING PRUDENTIAL defined the functional currency as the currency of the primary economic environment in which the entity operates. II - Foreign Currency Transactions Foreign currency transactions are translated using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses are recognized in the Consolidated Statement of Income, unless they are related to cash flow hedges, which are recognized in Stockholders' Equity. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.9

Note 4 - Interbank investments 12/31/2018 12/31/2017 0 - 30 31 - 180 181 - 365 Over 365 Total % Total % Money market 57,768,116 215,052,849 - 103,235 272,924,200 91.2 236,108,899 89.0 (*) Funded position 7,074,055 40,365,437 - 92,937 47,532,429 15.9 39,657,380 14.9 Financed position 48,336,496 130,907,178 - 10,298 179,253,972 59.9 158,903,808 59.9 With free movement 14,977,760 15,055,843 - - 30,033,603 10.0 57,175,126 21.6 Without free movement 33,358,736 115,851,335 - 10,298 149,220,369 49.9 101,728,682 38.3 Short position 2,357,565 43,780,234 - - 46,137,799 15.4 37,547,711 14.2 Interbank deposits 26,414,945 8.8 29,048,473 11.0 19,179,385 4,813,780 1,733,666 688,114 Total 76,947,501 219,866,629 1,733,666 791,349 299,339,145 100.0 265,157,372 100.0 % per maturity term 25.7 73.4 0.6 0.3 100.0 Total at 12/31/2017 57,433,904 203,632,280 2,882,441 1,208,747 265,157,372 % per maturity term 21.7 76.7 1.1 0.5 100.0 (1) Includes R$ 5,119,614 (R$ 3,663,907 at 12/31/2017) related to money market with free movement, in which securities are restricted to guarantee transactions at the B3 S.A. - Brasil, Bolsa, Balcão (B3) and the Central Bank of Brazil (BACEN); (2) Includes a securities valuation allowance in the amount of R$ (4,855) (R$ (4,148) at 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.10 Note 4 - Interbank investments 12/31/2018 12/31/2017 0 - 30 31 - 180 181 - 365 Over 365 Total % Total % Money market 57,768,116 215,052,849 - 103,235 272,924,200 91.2 236,108,899 89.0 (*) Funded position 7,074,055 40,365,437 - 92,937 47,532,429 15.9 39,657,380 14.9 Financed position 48,336,496 130,907,178 - 10,298 179,253,972 59.9 158,903,808 59.9 With free movement 14,977,760 15,055,843 - - 30,033,603 10.0 57,175,126 21.6 Without free movement 33,358,736 115,851,335 - 10,298 149,220,369 49.9 101,728,682 38.3 Short position 2,357,565 43,780,234 - - 46,137,799 15.4 37,547,711 14.2 Interbank deposits 26,414,945 8.8 29,048,473 11.0 19,179,385 4,813,780 1,733,666 688,114 Total 76,947,501 219,866,629 1,733,666 791,349 299,339,145 100.0 265,157,372 100.0 % per maturity term 25.7 73.4 0.6 0.3 100.0 Total at 12/31/2017 57,433,904 203,632,280 2,882,441 1,208,747 265,157,372 % per maturity term 21.7 76.7 1.1 0.5 100.0 (1) Includes R$ 5,119,614 (R$ 3,663,907 at 12/31/2017) related to money market with free movement, in which securities are restricted to guarantee transactions at the B3 S.A. - Brasil, Bolsa, Balcão (B3) and the Central Bank of Brazil (BACEN); (2) Includes a securities valuation allowance in the amount of R$ (4,855) (R$ (4,148) at 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.10

Note 5 – Securities and derivative financial instruments (assets and liabilities) See below the composition by Securities and Derivatives type, maturity and portfolio already adjusted to their respective market values. a) Summary per maturity 12/31/2018 12/31/2017 Adjustment to market value reflected in: Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value Stockholders’ Results equity Government securities - domestic 139,140,797 1,194,551 741,205 141,076,553 55.8 1,562,979 806,461 5,825,453 3,792,373 18,274,654 110,814,633 151,601,415 Financial treasury bills 24,241,740 732 4 24,242,476 9.6 - 705,861 - - 1,541,724 21,994,891 40,878,693 National treasury bills 30,064,534 341,558 82,514 30,488,606 12.1 1,013,940 - 278,933 991,220 12,135,223 16,069,290 45,524,956 National treasury notes 49,851,028 776,420 642,112 51,269,560 20.2 543,634 100,523 5,193,137 130,346 4,070,473 41,231,447 38,159,792 National treasury/securitization 175,521 (228) 27,845 203,138 0.1 - 77 - 160 79 202,822 219,653 Brazilian external debt bonds 34,807,974 76,069 ( 11,270) 34,872,773 13.8 5,405 - 353,383 2,670,647 527,155 31,316,183 26,818,321 Government securities - abroad 27,168,566 7,849 (143,877) 27,032,538 10.6 2,126,829 1,799,564 3,795,213 5,328,375 5,815,785 8,166,772 28,644,825 Germany 22,456 - 13 22,469 0.0 - - - - 22,469 - - Argentina 1,112,124 7,815 218 1,120,157 0.4 1,010,226 23,177 5,785 - 26,256 54,713 1,465,788 Chile 7,795,125 114 6,121 7,801,360 3.1 68,842 139 7,768 51,757 1,778,674 5,894,180 9,642,530 Colombia 6,054,197 339 14,107 6,068,643 2.4 57,465 166,389 1,056,265 2,023,173 1,260,767 1,504,584 5,886,838 Korea 1,384,861 - - 1,384,861 0.5 - - - - 1,384,861 - 1,943,924 Denmark - - - - 0.0 - - - - - - 1,950,784 Spain 2,411,100 - - 2,411,100 1.0 - - 316,592 1,018,565 1,075,943 - 2,937,144 United States 2,770,331 ( 35) ( 15,604) 2,754,692 1.1 699,122 863,721 335,396 404,749 - 451,704 1,666,081 France 891,007 - ( 200) 890,807 0.4 - - 556,381 334,426 - - - Italy 114,887 - 375 115,262 0.0 - - - 115,262 - - - Mexico 2,377,862 ( 379) ( 73,649) 2,303,834 0.9 150,192 497,456 734,765 802,022 - 119,399 549,236 Paraguay 1,601,954 ( 57) ( 70,972) 1,530,925 0.6 136,202 172,899 521,829 509,026 161,870 29,099 1,802,670 Uruguay 628,911 37 ( 4,282) 624,666 0.2 4,780 73,952 260,432 69,395 104,912 111,195 797,890 Other 3,751 15 ( 4) 3,762 0.0 - 1,831 - - 33 1,898 1,940 61,699,843 ( 212,593) (53,183) 61,434,067 24.4 9,761,806 1,418,791 5,174,554 2,945,700 7,371,107 34,762,109 56,592,819 Corporate securities Shares 5,111,459 (169,838) 108,559 5,050,180 2.0 5,050,180 - - - - - 3,116,878 Rural product note 4,089,009 - 105,988 4,194,997 1.7 199,782 198,543 340,164 299,969 429,731 2,726,808 2,828,420 Bank deposit certificates 1,166,685 (82) 132 1,166,735 0.5 809,505 255,124 53,865 48,241 - - 689,001 Securitized real estate loans 11,065,915 (385) 20,396 11,085,926 4.4 - - 444,894 - 258,813 10,382,219 14,668,434 Fund quotas 3,144,436 ( 45,827) - 3,098,609 1.2 3,098,609 - - - - - 2,751,802 Credit rights 224,586 - - 224,586 0.1 224,586 - - - - - 196,944 Fixed income 853,645 ( 29,671) - 823,974 0.3 823,974 - - - - - 840,009 Variable income 2,066,205 (16,156) - 2,050,049 0.8 2,050,049 - - - - - 1,714,849 Debentures 27,585,401 9,670 (267,394) 27,327,677 10.8 164,112 168,988 1,981,060 995,380 5,011,484 19,006,653 21,679,213 Eurobonds and others 6,742,864 ( 6,890) (25,841) 6,710,133 2.7 342,820 579,949 2,160,068 576,869 1,448,010 1,602,417 6,011,004 Financial bills 294,905 ( 376) ( 78) 294,451 0.1 35,773 84,377 8,330 56,051 70,137 39,783 648,539 Promissory notes 1,066,870 - 2,759 1,069,629 0.4 - 25,139 94,871 538,748 144,305 266,566 3,243,933 Other 1,432,299 1,135 2,296 1,435,730 0.6 61,025 106,671 91,302 430,442 8,627 737,663 955,595 Subtotal - securities 228,009,206 989,807 544,145 229,543,158 90.8 13,451,614 4,024,816 14,795,220 12,066,448 31,461,546 153,743,514 236,839,059 Trading securities 98,068,717 989,807 - 99,058,524 39.2 9,444,941 930,135 6,395,843 2,133,308 11,706,831 68,447,466 110,717,706 Available-for-sale securities 94,241,464 - 544,145 94,785,609 37.5 3,889,587 2,992,952 7,728,095 8,269,201 15,628,038 56,277,736 94,063,659 (*) 35,699,025 - - 35,699,025 14.1 117,086 101,729 671,282 1,663,939 4,126,677 29,018,312 32,057,694 Held-to-maturity securities Derivative financial instruments 15,260,867 8,200,497 - 23,461,364 9.2 3,925,941 2,250,788 1,779,049 2,312,345 4,073,764 9,119,477 22,656,494 Total securities and derivative financial instruments (assets) 243,270,073 9,190,304 544,145 253,004,522 100.0 17,377,555 6,275,604 16,574,269 14,378,793 35,535,310 162,862,991 259,495,553 Derivative financial instruments (liabilities) (18,826,670) (8,658,195) - (27,484,865) 100.0 ( 3,122,172) (2,252,565) ( 1,816,674) (2,822,026) (5,675,075) ( 11,796,353) ( 26,452,616) (*) Unrecorded adjustment to market value in the amount of R$ 264,761 (R$ 596,043) at 12/31/2017) according to Note 5e. During the period ended December 31, 2018, ITAÚ UNIBANCO HOLDING CONSOLIDATED recognized R$ (1,216,210) (R$ (1,063,411) at 12/31/2017) of impairment losses, of which R$ (946,741) (R$ (787,833) at 12/31/2017) of available-for-sale financial assets and R$ (269,469) (R$ (275,578) at 12/31/2017) of held-to-maturity assets. The Securities and Derivative Financial Instruments totaled R$ 314,910 ( R$ (982,287) at 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.11 Note 5 – Securities and derivative financial instruments (assets and liabilities) See below the composition by Securities and Derivatives type, maturity and portfolio already adjusted to their respective market values. a) Summary per maturity 12/31/2018 12/31/2017 Adjustment to market value reflected in: Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value Stockholders’ Results equity Government securities - domestic 139,140,797 1,194,551 741,205 141,076,553 55.8 1,562,979 806,461 5,825,453 3,792,373 18,274,654 110,814,633 151,601,415 Financial treasury bills 24,241,740 732 4 24,242,476 9.6 - 705,861 - - 1,541,724 21,994,891 40,878,693 National treasury bills 30,064,534 341,558 82,514 30,488,606 12.1 1,013,940 - 278,933 991,220 12,135,223 16,069,290 45,524,956 National treasury notes 49,851,028 776,420 642,112 51,269,560 20.2 543,634 100,523 5,193,137 130,346 4,070,473 41,231,447 38,159,792 National treasury/securitization 175,521 (228) 27,845 203,138 0.1 - 77 - 160 79 202,822 219,653 Brazilian external debt bonds 34,807,974 76,069 ( 11,270) 34,872,773 13.8 5,405 - 353,383 2,670,647 527,155 31,316,183 26,818,321 Government securities - abroad 27,168,566 7,849 (143,877) 27,032,538 10.6 2,126,829 1,799,564 3,795,213 5,328,375 5,815,785 8,166,772 28,644,825 Germany 22,456 - 13 22,469 0.0 - - - - 22,469 - - Argentina 1,112,124 7,815 218 1,120,157 0.4 1,010,226 23,177 5,785 - 26,256 54,713 1,465,788 Chile 7,795,125 114 6,121 7,801,360 3.1 68,842 139 7,768 51,757 1,778,674 5,894,180 9,642,530 Colombia 6,054,197 339 14,107 6,068,643 2.4 57,465 166,389 1,056,265 2,023,173 1,260,767 1,504,584 5,886,838 Korea 1,384,861 - - 1,384,861 0.5 - - - - 1,384,861 - 1,943,924 Denmark - - - - 0.0 - - - - - - 1,950,784 Spain 2,411,100 - - 2,411,100 1.0 - - 316,592 1,018,565 1,075,943 - 2,937,144 United States 2,770,331 ( 35) ( 15,604) 2,754,692 1.1 699,122 863,721 335,396 404,749 - 451,704 1,666,081 France 891,007 - ( 200) 890,807 0.4 - - 556,381 334,426 - - - Italy 114,887 - 375 115,262 0.0 - - - 115,262 - - - Mexico 2,377,862 ( 379) ( 73,649) 2,303,834 0.9 150,192 497,456 734,765 802,022 - 119,399 549,236 Paraguay 1,601,954 ( 57) ( 70,972) 1,530,925 0.6 136,202 172,899 521,829 509,026 161,870 29,099 1,802,670 Uruguay 628,911 37 ( 4,282) 624,666 0.2 4,780 73,952 260,432 69,395 104,912 111,195 797,890 Other 3,751 15 ( 4) 3,762 0.0 - 1,831 - - 33 1,898 1,940 61,699,843 ( 212,593) (53,183) 61,434,067 24.4 9,761,806 1,418,791 5,174,554 2,945,700 7,371,107 34,762,109 56,592,819 Corporate securities Shares 5,111,459 (169,838) 108,559 5,050,180 2.0 5,050,180 - - - - - 3,116,878 Rural product note 4,089,009 - 105,988 4,194,997 1.7 199,782 198,543 340,164 299,969 429,731 2,726,808 2,828,420 Bank deposit certificates 1,166,685 (82) 132 1,166,735 0.5 809,505 255,124 53,865 48,241 - - 689,001 Securitized real estate loans 11,065,915 (385) 20,396 11,085,926 4.4 - - 444,894 - 258,813 10,382,219 14,668,434 Fund quotas 3,144,436 ( 45,827) - 3,098,609 1.2 3,098,609 - - - - - 2,751,802 Credit rights 224,586 - - 224,586 0.1 224,586 - - - - - 196,944 Fixed income 853,645 ( 29,671) - 823,974 0.3 823,974 - - - - - 840,009 Variable income 2,066,205 (16,156) - 2,050,049 0.8 2,050,049 - - - - - 1,714,849 Debentures 27,585,401 9,670 (267,394) 27,327,677 10.8 164,112 168,988 1,981,060 995,380 5,011,484 19,006,653 21,679,213 Eurobonds and others 6,742,864 ( 6,890) (25,841) 6,710,133 2.7 342,820 579,949 2,160,068 576,869 1,448,010 1,602,417 6,011,004 Financial bills 294,905 ( 376) ( 78) 294,451 0.1 35,773 84,377 8,330 56,051 70,137 39,783 648,539 Promissory notes 1,066,870 - 2,759 1,069,629 0.4 - 25,139 94,871 538,748 144,305 266,566 3,243,933 Other 1,432,299 1,135 2,296 1,435,730 0.6 61,025 106,671 91,302 430,442 8,627 737,663 955,595 Subtotal - securities 228,009,206 989,807 544,145 229,543,158 90.8 13,451,614 4,024,816 14,795,220 12,066,448 31,461,546 153,743,514 236,839,059 Trading securities 98,068,717 989,807 - 99,058,524 39.2 9,444,941 930,135 6,395,843 2,133,308 11,706,831 68,447,466 110,717,706 Available-for-sale securities 94,241,464 - 544,145 94,785,609 37.5 3,889,587 2,992,952 7,728,095 8,269,201 15,628,038 56,277,736 94,063,659 (*) 35,699,025 - - 35,699,025 14.1 117,086 101,729 671,282 1,663,939 4,126,677 29,018,312 32,057,694 Held-to-maturity securities Derivative financial instruments 15,260,867 8,200,497 - 23,461,364 9.2 3,925,941 2,250,788 1,779,049 2,312,345 4,073,764 9,119,477 22,656,494 Total securities and derivative financial instruments (assets) 243,270,073 9,190,304 544,145 253,004,522 100.0 17,377,555 6,275,604 16,574,269 14,378,793 35,535,310 162,862,991 259,495,553 Derivative financial instruments (liabilities) (18,826,670) (8,658,195) - (27,484,865) 100.0 ( 3,122,172) (2,252,565) ( 1,816,674) (2,822,026) (5,675,075) ( 11,796,353) ( 26,452,616) (*) Unrecorded adjustment to market value in the amount of R$ 264,761 (R$ 596,043) at 12/31/2017) according to Note 5e. During the period ended December 31, 2018, ITAÚ UNIBANCO HOLDING CONSOLIDATED recognized R$ (1,216,210) (R$ (1,063,411) at 12/31/2017) of impairment losses, of which R$ (946,741) (R$ (787,833) at 12/31/2017) of available-for-sale financial assets and R$ (269,469) (R$ (275,578) at 12/31/2017) of held-to-maturity assets. The Securities and Derivative Financial Instruments totaled R$ 314,910 ( R$ (982,287) at 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.11

b) Summary by portfolio 12/31/2018 Restricted to Derivative Own portfolio financial Total Repurchase Pledged Free portfolio Central Bank agreements guarantees (*) instruments Government securities - domestic 51,000,621 51,696,453 32,810,623 2,097,674 3,471,182 - 141,076,553 Financial treasury bills 23,273,395 6,513 - 902,427 60,141 - 24,242,476 National treasury bills 9,139,112 21,344,066 - 5,428 - - 30,488,606 National treasury notes 16,544,205 30,345,874 - 968,440 3,411,041 - 51,269,560 National treasury/securitization 203,138 - - - - 203,138 Brazilian external debt bonds 1,840,771 - 32,810,623 221,379 - 34,872,773 Government securities - abroad 21,723,277 135,988 3,577,393 1,595,880 - - 27,032,538 Germany 22,469 22,469 Argentina 1,081,281 - - 38,876 - - 1,120,157 Chile 7,689,503 83,692 - 28,165 - - 7,801,360 Colombia 2,347,195 - 3,577,393 144,055 - - 6,068,643 1,384,861 - - - - - 1,384,861 Korea Spain 1,482,055 - - 929,045 - - 2,411,100 United States 2,310,697 - - 443,995 - - 2,754,692 890,807 - - - - - 890,807 France Italy 115,262 - - - - - 115,262 Mexico 2,303,834 - - - - - 2,303,834 1,468,151 52,296 - 10,478 - - 1,530,925 Paraguay Uruguay 623,400 - - 1,266 - - 624,666 Other 3,762 - - - - - 3,762 48,134,091 9,067,120 236,928 3,995,928 - - 61,434,067 Corporate securities Shares 5,050,180 - - - - - 5,050,180 Rural product note 4,194,997 - - - - - 4,194,997 1,166,177 - - 558 - - 1,166,735 Bank deposit certificates Securitized real estate loans 11,085,926 - - - 11,085,926 Fund quotas 3,033,668 - - 64,941 - - 3,098,609 Credit rights 224,586 - - - - 224,586 Fixed income 759,033 - - 64,941 - - 823,974 Variable income 2,050,049 - - - - 2,050,049 Debentures 14,350,842 9,067,120 - 3,909,715 - - 27,327,677 Eurobonds and other 6,452,491 - 236,928 20,714 - - 6,710,133 Financial bills 294,451 - - - - 294,451 Promissory notes 1,069,629 - - - - - 1,069,629 Other 1,435,730 - - - - - 1,435,730 Subtotal - securities 120,857,989 60,899,561 36,624,944 7,689,482 3,471,182 - 229,543,158 Trading securities 59,384,963 34,115,569 939,376 1,700,991 2,917,625 - 99,058,524 50,761,674 20,899,260 16,582,627 5,988,491 553,557 - 94,785,609 Available-for-sale securities Held-to-maturity securities 10,711,352 5,884,732 19,102,941 - - - 35,699,025 Derivative financial instruments - - - - - 23,461,364 23,461,364 120,857,989 60,899,561 36,624,944 7,689,482 3,471,182 23,461,364 253,004,522 Total securities and derivative financial instruments (assets) Total securities and derivative financial instruments (assets) – 12/31/2017 149,366,048 50,610,464 14,914,211 17,863,549 4,084,787 22,656,494 259,495,553 (*) Represent securities deposited with Contingent Liabilities (Note 8b), Stock Exchanges and the Clearing House for the Custody and Financial Settlement of Securities. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.12 b) Summary by portfolio 12/31/2018 Restricted to Derivative Own portfolio financial Total Repurchase Pledged Free portfolio Central Bank agreements guarantees (*) instruments Government securities - domestic 51,000,621 51,696,453 32,810,623 2,097,674 3,471,182 - 141,076,553 Financial treasury bills 23,273,395 6,513 - 902,427 60,141 - 24,242,476 National treasury bills 9,139,112 21,344,066 - 5,428 - - 30,488,606 National treasury notes 16,544,205 30,345,874 - 968,440 3,411,041 - 51,269,560 National treasury/securitization 203,138 - - - - 203,138 Brazilian external debt bonds 1,840,771 - 32,810,623 221,379 - 34,872,773 Government securities - abroad 21,723,277 135,988 3,577,393 1,595,880 - - 27,032,538 Germany 22,469 22,469 Argentina 1,081,281 - - 38,876 - - 1,120,157 Chile 7,689,503 83,692 - 28,165 - - 7,801,360 Colombia 2,347,195 - 3,577,393 144,055 - - 6,068,643 1,384,861 - - - - - 1,384,861 Korea Spain 1,482,055 - - 929,045 - - 2,411,100 United States 2,310,697 - - 443,995 - - 2,754,692 890,807 - - - - - 890,807 France Italy 115,262 - - - - - 115,262 Mexico 2,303,834 - - - - - 2,303,834 1,468,151 52,296 - 10,478 - - 1,530,925 Paraguay Uruguay 623,400 - - 1,266 - - 624,666 Other 3,762 - - - - - 3,762 48,134,091 9,067,120 236,928 3,995,928 - - 61,434,067 Corporate securities Shares 5,050,180 - - - - - 5,050,180 Rural product note 4,194,997 - - - - - 4,194,997 1,166,177 - - 558 - - 1,166,735 Bank deposit certificates Securitized real estate loans 11,085,926 - - - 11,085,926 Fund quotas 3,033,668 - - 64,941 - - 3,098,609 Credit rights 224,586 - - - - 224,586 Fixed income 759,033 - - 64,941 - - 823,974 Variable income 2,050,049 - - - - 2,050,049 Debentures 14,350,842 9,067,120 - 3,909,715 - - 27,327,677 Eurobonds and other 6,452,491 - 236,928 20,714 - - 6,710,133 Financial bills 294,451 - - - - 294,451 Promissory notes 1,069,629 - - - - - 1,069,629 Other 1,435,730 - - - - - 1,435,730 Subtotal - securities 120,857,989 60,899,561 36,624,944 7,689,482 3,471,182 - 229,543,158 Trading securities 59,384,963 34,115,569 939,376 1,700,991 2,917,625 - 99,058,524 50,761,674 20,899,260 16,582,627 5,988,491 553,557 - 94,785,609 Available-for-sale securities Held-to-maturity securities 10,711,352 5,884,732 19,102,941 - - - 35,699,025 Derivative financial instruments - - - - - 23,461,364 23,461,364 120,857,989 60,899,561 36,624,944 7,689,482 3,471,182 23,461,364 253,004,522 Total securities and derivative financial instruments (assets) Total securities and derivative financial instruments (assets) – 12/31/2017 149,366,048 50,610,464 14,914,211 17,863,549 4,084,787 22,656,494 259,495,553 (*) Represent securities deposited with Contingent Liabilities (Note 8b), Stock Exchanges and the Clearing House for the Custody and Financial Settlement of Securities. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.12

c) Trading securities See below the composition of the portfolio of trading securities by type, stated at cost and market value and by maturity term. 12/31/2018 12/31/2017 Adjustment to Market Over 720 Market Cost market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 value days value (in results) Government securities - domestic 87,298,353 1,194,551 88,492,904 89.4 1,562,979 806,461 5,654,827 1,866,832 11,351,013 67,250,792 100,197,186 Financial treasury bills 24,021,830 732 24,022,562 24.3 - 705,861 - - 1,322,640 21,994,061 40,323,802 National treasury bills 23,454,791 341,558 23,796,349 24.0 1,013,940 - 278,933 984,862 5,475,441 16,043,173 26,823,972 National treasury notes 37,112,325 776,420 37,888,745 38.3 543,634 100,523 5,101,690 130,346 4,040,859 27,971,693 28,092,330 National treasury/securitization 641 (228) 413 0.0 - 77 - 160 79 97 652 Brazilian external debt bonds 2,708,766 76,069 2,784,835 2.8 5,405 - 274,204 751,464 511,994 1,241,768 4,956,430 Government securities - abroad 1,792,845 7,849 1,800,694 1.7 1,039,768 120,524 100,226 177,363 122,594 240,219 3,901,579 Argentina 1,112,114 7,815 1,119,929 1.1 1,009,998 23,177 5,785 - 26,256 54,713 1,465,788 Chile 147,669 114 147,783 0.1 25,880 139 7,768 15,190 64,924 33,882 41,362 Colombia 207,286 339 207,625 0.2 - 70,117 46,854 31,413 31,414 27,827 2,092,693 United States 116,800 (35) 116,765 0.1 - - - 116,765 - - 99,523 Mexico 119,802 (379) 119,423 0.1 - - - 24 - 119,399 5,276 Paraguay 1,267 (57) 1,210 0.0 - - - - - 1,210 2,591 Uruguay 84,417 37 84,454 0.1 3,890 25,260 39,819 13,971 - 1,514 192,609 Other 3,490 15 3,505 0.0 - 1,831 - - - 1,674 1,737 Corporate securities 8,977,519 (212,593) 8,764,926 8.9 6,842,194 3,150 640,790 89,113 233,224 956,455 6,618,941 Shares 4,116,929 ( 169,838) 3,947,091 4.0 3,947,091 - - - - - 2,437,579 Bank deposit certificates 114,025 (82) 113,943 0.1 99,107 - 10,574 4,262 - - 1,347 Securitized real estate loans 14,437 ( 385) 14,052 0.0 - - - - - 14,052 65,173 Fund quotas 2,840,298 (45,827) 2,794,471 2.8 2,794,471 - - - - - 2,475,754 Credit rights 224,586 - 224,586 0.2 224,586 - - - - - 196,944 Fixed income 549,507 ( 29,671) 519,836 0.5 519,836 - - - - - 563,961 Variable income 2,066,205 ( 16,156) 2,050,049 2.1 2,050,049 - - - - - 1,714,849 Debentures 477,876 9,670 487,546 0.5 - 576 8,716 1,197 7,254 469,803 934,063 Eurobonds and other 1,205,653 (6,890) 1,198,763 1.2 121 - 612,832 55,194 147,206 383,410 628,302 Financial bills 149,426 ( 376) 149,050 0.2 - 2,574 8,330 28,226 70,137 39,783 29,063 Other 58,875 1,135 60,010 0.1 1,404 - 338 234 8,627 49,407 47,660 Total 98,068,717 989,807 99,058,524 100.0 9,444,941 930,135 6,395,843 2,133,308 11,706,831 68,447,466 110,717,706 % per maturity term 9.5 0.9 6.5 2.2 11.8 69.1 Total – 12/31/2017 110,297,987 419,719 110,717,706 100.0 10,556,951 2,737,605 4,009,846 12,439,223 10,457,978 70,516,103 % per maturity term 9.5 2.5 3.6 11.2 9.4 63.8 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.13 c) Trading securities See below the composition of the portfolio of trading securities by type, stated at cost and market value and by maturity term. 12/31/2018 12/31/2017 Adjustment to Market Over 720 Market Cost market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 value days value (in results) Government securities - domestic 87,298,353 1,194,551 88,492,904 89.4 1,562,979 806,461 5,654,827 1,866,832 11,351,013 67,250,792 100,197,186 Financial treasury bills 24,021,830 732 24,022,562 24.3 - 705,861 - - 1,322,640 21,994,061 40,323,802 National treasury bills 23,454,791 341,558 23,796,349 24.0 1,013,940 - 278,933 984,862 5,475,441 16,043,173 26,823,972 National treasury notes 37,112,325 776,420 37,888,745 38.3 543,634 100,523 5,101,690 130,346 4,040,859 27,971,693 28,092,330 National treasury/securitization 641 (228) 413 0.0 - 77 - 160 79 97 652 Brazilian external debt bonds 2,708,766 76,069 2,784,835 2.8 5,405 - 274,204 751,464 511,994 1,241,768 4,956,430 Government securities - abroad 1,792,845 7,849 1,800,694 1.7 1,039,768 120,524 100,226 177,363 122,594 240,219 3,901,579 Argentina 1,112,114 7,815 1,119,929 1.1 1,009,998 23,177 5,785 - 26,256 54,713 1,465,788 Chile 147,669 114 147,783 0.1 25,880 139 7,768 15,190 64,924 33,882 41,362 Colombia 207,286 339 207,625 0.2 - 70,117 46,854 31,413 31,414 27,827 2,092,693 United States 116,800 (35) 116,765 0.1 - - - 116,765 - - 99,523 Mexico 119,802 (379) 119,423 0.1 - - - 24 - 119,399 5,276 Paraguay 1,267 (57) 1,210 0.0 - - - - - 1,210 2,591 Uruguay 84,417 37 84,454 0.1 3,890 25,260 39,819 13,971 - 1,514 192,609 Other 3,490 15 3,505 0.0 - 1,831 - - - 1,674 1,737 Corporate securities 8,977,519 (212,593) 8,764,926 8.9 6,842,194 3,150 640,790 89,113 233,224 956,455 6,618,941 Shares 4,116,929 ( 169,838) 3,947,091 4.0 3,947,091 - - - - - 2,437,579 Bank deposit certificates 114,025 (82) 113,943 0.1 99,107 - 10,574 4,262 - - 1,347 Securitized real estate loans 14,437 ( 385) 14,052 0.0 - - - - - 14,052 65,173 Fund quotas 2,840,298 (45,827) 2,794,471 2.8 2,794,471 - - - - - 2,475,754 Credit rights 224,586 - 224,586 0.2 224,586 - - - - - 196,944 Fixed income 549,507 ( 29,671) 519,836 0.5 519,836 - - - - - 563,961 Variable income 2,066,205 ( 16,156) 2,050,049 2.1 2,050,049 - - - - - 1,714,849 Debentures 477,876 9,670 487,546 0.5 - 576 8,716 1,197 7,254 469,803 934,063 Eurobonds and other 1,205,653 (6,890) 1,198,763 1.2 121 - 612,832 55,194 147,206 383,410 628,302 Financial bills 149,426 ( 376) 149,050 0.2 - 2,574 8,330 28,226 70,137 39,783 29,063 Other 58,875 1,135 60,010 0.1 1,404 - 338 234 8,627 49,407 47,660 Total 98,068,717 989,807 99,058,524 100.0 9,444,941 930,135 6,395,843 2,133,308 11,706,831 68,447,466 110,717,706 % per maturity term 9.5 0.9 6.5 2.2 11.8 69.1 Total – 12/31/2017 110,297,987 419,719 110,717,706 100.0 10,556,951 2,737,605 4,009,846 12,439,223 10,457,978 70,516,103 % per maturity term 9.5 2.5 3.6 11.2 9.4 63.8 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.13

d) Available-for-sale securities See below the composition of the portfolio of available-for-sale securities by type, stated at cost and market value and by maturity term. 12/31/2018 12/31/2017 Adjustments to market value (in Over 720 Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Market value stockholders' days equity) 26,853,416 741,205 27,594,621 29.1 - - 170,626 854,939 3,055,810 23,513,246 33,174,250 Government securities - domestic Financial treasury bills 219,910 4 219,914 0.2 - - - - 219,084 830 554,891 National treasury bills 2,741,912 82,514 2,824,426 3.0 - - - 6,358 2,791,951 26,117 9,543,875 National treasury notes 10,721,803 642,112 11,363,915 12.0 - - 91,447 - 29,614 11,242,854 10,067,462 174,880 27,845 202,725 0.2 - - - - - 202,725 219,001 National treasury/securitization Brazilian external debt bonds 12,994,911 ( 11,270) 12,983,641 13.7 - - 79,179 848,581 15,161 12,040,720 12,789,021 Government securities - abroad 25,004,642 ( 143,877) 24,860,765 26.2 1,029,596 1,679,040 3,559,563 4,987,883 5,693,158 7,911,525 24,282,855 Germany 22,456 13 22,469 0.0 - - - - 22,469 - - Argentina 10 218 228 0.0 228 - - - - - - Chile 7,647,456 6,121 7,653,577 8.1 42,962 - - 36,567 1,713,750 5,860,298 9,601,168 Colombia 5,490,893 14,107 5,505,000 5.8 - 96,272 873,987 1,828,631 1,229,353 1,476,757 3,346,542 1,384,861 - 1,384,861 1.5 - - - - 1,384,861 - 1,943,924 Korea Denmark - - - 0.0 - - - - - - 1,950,784 Spain 2,411,100 - 2,411,100 2.5 - - 316,592 1,018,565 1,075,943 - 2,937,144 United States 2,653,531 (15,604) 2,637,927 2.8 699,122 863,721 335,396 287,984 - 451,704 1,566,558 891,007 ( 200) 890,807 0.9 - - 556,381 334,426 - - - France Italy 114,887 375 115,262 0.1 - - - 115,262 - - - Mexico 2,258,060 ( 73,649) 2,184,411 2.3 150,192 497,456 734,765 801,998 - - 543,960 1,600,687 ( 70,972) 1,529,715 1.6 136,202 172,899 521,829 509,026 161,870 27,889 1,800,079 Paraguay Uruguay 529,466 (4,282) 525,184 0.6 890 48,692 220,613 55,424 104,912 94,653 592,518 Other 228 ( 4) 224 0.0 - - - - - 224 178 Corporate securities 42,383,406 ( 53,183) 42,330,223 44.7 2,859,991 1,313,912 3,997,906 2,426,379 6,879,070 24,852,965 36,606,554 994,530 108,559 1,103,089 1.2 1,103,089 - - - - - 679,299 Shares Rural product note 4,089,009 105,988 4,194,997 4.4 199,782 198,543 340,164 299,969 429,731 2,726,808 2,828,420 Bank deposit certificate 1,052,660 132 1,052,792 1.1 710,398 255,124 43,291 43,979 - - 687,649 Securitized real estate loans 1,398,792 20,396 1,419,188 1.5 - - - - - 1,419,188 1,761,450 304,138 - 304,138 0.3 304,138 - - - - - 276,048 Fund quotas - Fixed income Debentures 27,107,525 ( 267,394) 26,840,131 28.4 164,112 168,412 1,972,344 994,183 5,004,230 18,536,850 20,745,150 Eurobonds and other 5,534,909 (25,841) 5,509,068 5.8 342,699 579,949 1,547,236 521,675 1,300,804 1,216,705 5,373,724 Financial bills 145,479 (78) 145,401 0.2 35,773 81,803 - 27,825 - - 619,476 Promissory notes 1,066,870 2,759 1,069,629 1.1 - 25,139 94,871 538,748 144,305 266,566 3,243,933 Other 689,494 2,296 691,790 0.7 - 4,942 - - - 686,848 391,405 Total 94,241,464 544,145 94,785,609 100.0 3,889,587 2,992,952 7,728,095 8,269,201 15,628,038 56,277,736 94,063,659 4.1 3.2 8.2 8.7 16.5 59.4 % per maturity term 93,867,043 196,616 94,063,659 100.0 3,058,267 4,901,165 4,054,486 11,988,771 12,739,638 57,321,332 Total – 12/31/2017 % per maturity term 3.3 5.2 4.3 12.7 13.5 61.0 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.14 d) Available-for-sale securities See below the composition of the portfolio of available-for-sale securities by type, stated at cost and market value and by maturity term. 12/31/2018 12/31/2017 Adjustments to market value (in Over 720 Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Market value stockholders' days equity) 26,853,416 741,205 27,594,621 29.1 - - 170,626 854,939 3,055,810 23,513,246 33,174,250 Government securities - domestic Financial treasury bills 219,910 4 219,914 0.2 - - - - 219,084 830 554,891 National treasury bills 2,741,912 82,514 2,824,426 3.0 - - - 6,358 2,791,951 26,117 9,543,875 National treasury notes 10,721,803 642,112 11,363,915 12.0 - - 91,447 - 29,614 11,242,854 10,067,462 174,880 27,845 202,725 0.2 - - - - - 202,725 219,001 National treasury/securitization Brazilian external debt bonds 12,994,911 ( 11,270) 12,983,641 13.7 - - 79,179 848,581 15,161 12,040,720 12,789,021 Government securities - abroad 25,004,642 ( 143,877) 24,860,765 26.2 1,029,596 1,679,040 3,559,563 4,987,883 5,693,158 7,911,525 24,282,855 Germany 22,456 13 22,469 0.0 - - - - 22,469 - - Argentina 10 218 228 0.0 228 - - - - - - Chile 7,647,456 6,121 7,653,577 8.1 42,962 - - 36,567 1,713,750 5,860,298 9,601,168 Colombia 5,490,893 14,107 5,505,000 5.8 - 96,272 873,987 1,828,631 1,229,353 1,476,757 3,346,542 1,384,861 - 1,384,861 1.5 - - - - 1,384,861 - 1,943,924 Korea Denmark - - - 0.0 - - - - - - 1,950,784 Spain 2,411,100 - 2,411,100 2.5 - - 316,592 1,018,565 1,075,943 - 2,937,144 United States 2,653,531 (15,604) 2,637,927 2.8 699,122 863,721 335,396 287,984 - 451,704 1,566,558 891,007 ( 200) 890,807 0.9 - - 556,381 334,426 - - - France Italy 114,887 375 115,262 0.1 - - - 115,262 - - - Mexico 2,258,060 ( 73,649) 2,184,411 2.3 150,192 497,456 734,765 801,998 - - 543,960 1,600,687 ( 70,972) 1,529,715 1.6 136,202 172,899 521,829 509,026 161,870 27,889 1,800,079 Paraguay Uruguay 529,466 (4,282) 525,184 0.6 890 48,692 220,613 55,424 104,912 94,653 592,518 Other 228 ( 4) 224 0.0 - - - - - 224 178 Corporate securities 42,383,406 ( 53,183) 42,330,223 44.7 2,859,991 1,313,912 3,997,906 2,426,379 6,879,070 24,852,965 36,606,554 994,530 108,559 1,103,089 1.2 1,103,089 - - - - - 679,299 Shares Rural product note 4,089,009 105,988 4,194,997 4.4 199,782 198,543 340,164 299,969 429,731 2,726,808 2,828,420 Bank deposit certificate 1,052,660 132 1,052,792 1.1 710,398 255,124 43,291 43,979 - - 687,649 Securitized real estate loans 1,398,792 20,396 1,419,188 1.5 - - - - - 1,419,188 1,761,450 304,138 - 304,138 0.3 304,138 - - - - - 276,048 Fund quotas - Fixed income Debentures 27,107,525 ( 267,394) 26,840,131 28.4 164,112 168,412 1,972,344 994,183 5,004,230 18,536,850 20,745,150 Eurobonds and other 5,534,909 (25,841) 5,509,068 5.8 342,699 579,949 1,547,236 521,675 1,300,804 1,216,705 5,373,724 Financial bills 145,479 (78) 145,401 0.2 35,773 81,803 - 27,825 - - 619,476 Promissory notes 1,066,870 2,759 1,069,629 1.1 - 25,139 94,871 538,748 144,305 266,566 3,243,933 Other 689,494 2,296 691,790 0.7 - 4,942 - - - 686,848 391,405 Total 94,241,464 544,145 94,785,609 100.0 3,889,587 2,992,952 7,728,095 8,269,201 15,628,038 56,277,736 94,063,659 4.1 3.2 8.2 8.7 16.5 59.4 % per maturity term 93,867,043 196,616 94,063,659 100.0 3,058,267 4,901,165 4,054,486 11,988,771 12,739,638 57,321,332 Total – 12/31/2017 % per maturity term 3.3 5.2 4.3 12.7 13.5 61.0 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.14

e) Held-to-maturity securities See below the composition of the portfolio of held-to-maturity securities by type, stated at cost and by maturity term. Included in the carrying value at December 31, 2018, not considered in results, is an impairment loss of R$ 357,221 (R$ 399,407 at 12/31/2017). 12/31/2018 12/31/2017 Carrying Carrying value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value Market value value Government securities - domestic 24,989,028 70.0 - - - 1,070,602 3,867,831 20,050,595 25,185,443 18,229,979 18,540,285 National treasury bills 3,867,831 10.8 - - - - 3,867,831 - 3,952,265 9,157,109 9,157,562 Brazilian external debt bonds 2,016,900 5.6 - - - - - 2,016,900 2,183,666 - - Other 19,104,297 - - - - 1,070,602 - 18,033,695 19,049,512 9,072,870 9,382,723 Government securities - abroad 371,079 1.0 57,465 - 135,424 163,129 33 15,028 370,110 460,391 459,242 Colombia 356,018 1.0 57,465 - 135,424 163,129 - - 349,105 447,603 439,664 Uruguay 15,028 - - - - - - 15,028 21,004 12,763 19,577 Other 33 - - - - - 33 - 1 25 1 Corporate securities 10,338,918 29.0 59,621 101,729 535,858 430,208 258,813 8,952,689 10,408,232 13,367,324 13,654,210 Bank deposit certificate - - - - - - - - - 5 5 Securitized real estate loans 9,652,686 27.0 - - 444,894 - 258,813 8,948,979 9,722,000 12,841,811 13,128,697 Eurobonds and other 2,302 - - - - - - 2,302 2,302 8,978 8,978 Other 683,930 1.9 59,621 101,729 90,964 430,208 - 1,408 683,930 516,530 516,530 (1) Total 35,699,025 100.0 117,086 101,729 671,282 1,663,939 4,126,677 29,018,312 35,963,785 32,057,694 32,653,737 % per maturity term 0.3 0.3 1.9 4.7 11.6 81.3 Total – 12/31/2017 32,057,694 100.0 9,456,680 38,129 296,586 504,582 1,479,744 20,281,973 32,653,737 % per maturity term 29.5 0.1 0.9 1.6 4.6 63.3 (1) In order to reflect the current risk management strategy, in the period ended 12/31/2018, ITAÚ UNIBANCO HOLDING PRUDENTIAL changed the classification of Government Securities – Brazil, being R$ 3,707,489 for Available-for-Trading Securities and R$ 8,678,270 for Available-for-Sale Securities. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.15 e) Held-to-maturity securities See below the composition of the portfolio of held-to-maturity securities by type, stated at cost and by maturity term. Included in the carrying value at December 31, 2018, not considered in results, is an impairment loss of R$ 357,221 (R$ 399,407 at 12/31/2017). 12/31/2018 12/31/2017 Carrying Carrying value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value Market value value Government securities - domestic 24,989,028 70.0 - - - 1,070,602 3,867,831 20,050,595 25,185,443 18,229,979 18,540,285 National treasury bills 3,867,831 10.8 - - - - 3,867,831 - 3,952,265 9,157,109 9,157,562 Brazilian external debt bonds 2,016,900 5.6 - - - - - 2,016,900 2,183,666 - - Other 19,104,297 - - - - 1,070,602 - 18,033,695 19,049,512 9,072,870 9,382,723 Government securities - abroad 371,079 1.0 57,465 - 135,424 163,129 33 15,028 370,110 460,391 459,242 Colombia 356,018 1.0 57,465 - 135,424 163,129 - - 349,105 447,603 439,664 Uruguay 15,028 - - - - - - 15,028 21,004 12,763 19,577 Other 33 - - - - - 33 - 1 25 1 Corporate securities 10,338,918 29.0 59,621 101,729 535,858 430,208 258,813 8,952,689 10,408,232 13,367,324 13,654,210 Bank deposit certificate - - - - - - - - - 5 5 Securitized real estate loans 9,652,686 27.0 - - 444,894 - 258,813 8,948,979 9,722,000 12,841,811 13,128,697 Eurobonds and other 2,302 - - - - - - 2,302 2,302 8,978 8,978 Other 683,930 1.9 59,621 101,729 90,964 430,208 - 1,408 683,930 516,530 516,530 (1) Total 35,699,025 100.0 117,086 101,729 671,282 1,663,939 4,126,677 29,018,312 35,963,785 32,057,694 32,653,737 % per maturity term 0.3 0.3 1.9 4.7 11.6 81.3 Total – 12/31/2017 32,057,694 100.0 9,456,680 38,129 296,586 504,582 1,479,744 20,281,973 32,653,737 % per maturity term 29.5 0.1 0.9 1.6 4.6 63.3 (1) In order to reflect the current risk management strategy, in the period ended 12/31/2018, ITAÚ UNIBANCO HOLDING PRUDENTIAL changed the classification of Government Securities – Brazil, being R$ 3,707,489 for Available-for-Trading Securities and R$ 8,678,270 for Available-for-Sale Securities. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.15

f) Derivative financial Instruments ITAÚ UNIBANCO HOLDING PRUDENTIAL enters into derivative financial instruments with various counterparties to manage its overall exposures and to assist its customers in managing their own exposures. Futures – Interest rate and foreign currency futures contracts are commitments to buy or sell a financial instrument at a future date, at a contracted price or yield and may be settled in cash or through delivery. The notional amount represents the face value of the underlying instrument. Commodity futures contracts or financial instruments are commitments to buy or sell commodities (mainly gold, coffee and orange juice), at a future date, at a contracted price, which are settled in cash. The notional amount represents the quantity of such commodities multiplied by the future price at the contract date. Daily cash settlements of price movements are made for all instruments. Forwards – Interest forward contracts are agreements to exchange payments on a specified future date, based on a market change in interest rates from trade date to contract settlement date. Foreign exchange forward contracts represent agreements to exchange the currency of one country for the currency of another country at an agreed price, at an agreed settlement date. Financial instrument forward contracts are commitments to buy or sell a financial instrument on a future date at a contracted price and are settled in cash. Swaps – Interest rate and foreign exchange swap contracts are commitments to settle in cash at a future date or dates, based on differentials between specified financial indices (either two different interest rates in a single currency or two different rates each in a different currency), as applied to a notional principal amount. Swap contracts presented in Other in the table below correspond substantially to inflation rate swap contracts. Options – Option contracts give the purchaser, for a fee, the right, but not the obligation, to buy or sell within a limited time a financial instrument including a flow of interest, foreign currencies, commodities, or financial instruments at a contracted price that may also be settled in cash, based on differentials between specific indices. Credit Derivatives – Credit derivatives are financial instruments with value relating to the credit risk associated to the debt issued by a third party (the reference entity), which permits that one party (the purchaser of the hedge) transfers the risk to the counterparty (the seller of the hedge). The seller of the hedge should make payments as set forth in the contract when the reference entity undergoes a credit event, such as bankruptcy, default or debt restructuring. The seller of the hedge receives a premium for the hedge, but, on the other hand, assumes the risk that the underlying asset referenced in the contract undergoes a credit event, and the seller would have to make the payment to the purchaser of the hedge, which could be the notional amount of the credit derivative. The total value of margins pledged in guarantee by ITAÚ UNIBANCO HOLDING PRUDENTIAL was R$ 10,048,165 (R$ 13,385,336 at 12/31/2017) and was basically comprised of government securities. Further information on internal controls and parameters used to management risks, may be accessed in Note 17 - Risk, Capital Management and Fixed Assets Limits. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.16 f) Derivative financial Instruments ITAÚ UNIBANCO HOLDING PRUDENTIAL enters into derivative financial instruments with various counterparties to manage its overall exposures and to assist its customers in managing their own exposures. Futures – Interest rate and foreign currency futures contracts are commitments to buy or sell a financial instrument at a future date, at a contracted price or yield and may be settled in cash or through delivery. The notional amount represents the face value of the underlying instrument. Commodity futures contracts or financial instruments are commitments to buy or sell commodities (mainly gold, coffee and orange juice), at a future date, at a contracted price, which are settled in cash. The notional amount represents the quantity of such commodities multiplied by the future price at the contract date. Daily cash settlements of price movements are made for all instruments. Forwards – Interest forward contracts are agreements to exchange payments on a specified future date, based on a market change in interest rates from trade date to contract settlement date. Foreign exchange forward contracts represent agreements to exchange the currency of one country for the currency of another country at an agreed price, at an agreed settlement date. Financial instrument forward contracts are commitments to buy or sell a financial instrument on a future date at a contracted price and are settled in cash. Swaps – Interest rate and foreign exchange swap contracts are commitments to settle in cash at a future date or dates, based on differentials between specified financial indices (either two different interest rates in a single currency or two different rates each in a different currency), as applied to a notional principal amount. Swap contracts presented in Other in the table below correspond substantially to inflation rate swap contracts. Options – Option contracts give the purchaser, for a fee, the right, but not the obligation, to buy or sell within a limited time a financial instrument including a flow of interest, foreign currencies, commodities, or financial instruments at a contracted price that may also be settled in cash, based on differentials between specific indices. Credit Derivatives – Credit derivatives are financial instruments with value relating to the credit risk associated to the debt issued by a third party (the reference entity), which permits that one party (the purchaser of the hedge) transfers the risk to the counterparty (the seller of the hedge). The seller of the hedge should make payments as set forth in the contract when the reference entity undergoes a credit event, such as bankruptcy, default or debt restructuring. The seller of the hedge receives a premium for the hedge, but, on the other hand, assumes the risk that the underlying asset referenced in the contract undergoes a credit event, and the seller would have to make the payment to the purchaser of the hedge, which could be the notional amount of the credit derivative. The total value of margins pledged in guarantee by ITAÚ UNIBANCO HOLDING PRUDENTIAL was R$ 10,048,165 (R$ 13,385,336 at 12/31/2017) and was basically comprised of government securities. Further information on internal controls and parameters used to management risks, may be accessed in Note 17 - Risk, Capital Management and Fixed Assets Limits. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.16

I - Derivatives summary See below the composition of the Derivative Financial Instruments portfolio (assets and liabilities) by type of instrument, stated at cost, market value, and maturity term. 12/31/2018 12/31/2017 Adjustments to market value (in Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value results / stockholders' equity) Asset Futures - - - 0.0 - - - - - - 157,714 Swaps - adjustment receivable 6,263,152 6,785,502 13,048,654 55.6 704,904 187,354 245,328 699,680 2,880,461 8,330,927 9,185,764 Option premiums 3,741,014 550,516 4,291,530 18.3 1,158,927 402,646 609,661 871,167 975,434 273,695 3,337,397 Forwards (onshore) 1,742,807 1,823 1,744,630 7.4 838,442 681,993 142,672 81,309 214 - 6,694,617 Credit derivatives (86,375) 205,223 118,848 0.5 - 460 1,080 4,764 9,033 103,511 137,653 NDF - Non Deliverable Forward 3,377,930 333,917 3,711,847 15.9 1,013,813 968,015 771,908 653,412 178,086 126,613 2,949,671 Target flow of swap 6,889 37,081 43,970 0.2 448 266 7,302 - 12,300 23,654 68,131 Other derivative financial instruments 215,450 286,435 501,885 2.1 209,407 10,054 1,098 2,013 18,236 261,077 125,547 Total 15,260,867 8,200,497 23,461,364 100.0 3,925,941 2,250,788 1,779,049 2,312,345 4,073,764 9,119,477 22,656,494 % per maturity term 16.7 9.6 7.6 9.9 17.3 38.9 15,990,903 6,665,591 22,656,494 100.0 7,799,326 1,614,997 1,353,763 2,356,405 2,770,116 6,761,887 Total – 12/31/2017 % per maturity term 34.4 7.1 6.0 10.4 12.2 29.9 12/31/2018 12/31/2017 Adjustments to market value (in Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value results / stockholders' equity) Liabilities Swaps - difference payable ( 11,450,208) (7,903,433) ( 19,353,641) 70.4 ( 922,612) (978,592) (605,502) (1,417,153) (4,686,689) ( 10,743,093) ( 13,688,246) Option premiums (3,414,944) (510,339) ( 3,925,283) 14.3 ( 879,802) ( 499,876) ( 603,670) (831,113) ( 822,673) ( 288,149) ( 2,790,726) Forwards (onshore) (428,958) 249 (428,709) 1.6 (428,709) - - - - - ( 5,965,107) Credit derivatives (156,752) 16,905 (139,847) 0.5 - ( 10) ( 148) ( 1,643) ( 3,694) ( 134,352) ( 58,113) NDF - Non Deliverable Forward ( 3,278,651) ( 105,108) ( 3,383,759) 12.3 (888,833) ( 771,762) ( 583,199) ( 552,134) ( 150,490) (437,341) ( 3,744,759) Target flow of swap - Companies ( 78,137) (84,328) (162,465) 0.6 - - ( 15,597) - - ( 146,868) (121,878) Other derivative financial instruments (19,020) ( 72,141) ( 91,161) 0.3 (2,216) ( 2,325) (8,558) (19,983) ( 11,529) ( 46,550) ( 83,787) (18,826,670) (8,658,195) (27,484,865) 100.0 (3,122,172) (2,252,565) (1,816,674) (2,822,026) (5,675,075) (11,796,353) (26,452,616) Total % per maturity term 11.4 8.2 6.6 10.3 20.6 42.9 Total – 12/31/2017 (20,523,308) (5,929,308) (26,452,616) 100.0 (7,286,502) (1,114,011) (1,374,000) (3,327,590) (4,889,109) (8,461,404) % per maturity term 27.5 4.2 5.2 12.6 18.5 32.0 The result of derivative financial instruments in the period totals R$ (702,842) ( R$ 2,272,934 em 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.17 I - Derivatives summary See below the composition of the Derivative Financial Instruments portfolio (assets and liabilities) by type of instrument, stated at cost, market value, and maturity term. 12/31/2018 12/31/2017 Adjustments to market value (in Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value results / stockholders' equity) Asset Futures - - - 0.0 - - - - - - 157,714 Swaps - adjustment receivable 6,263,152 6,785,502 13,048,654 55.6 704,904 187,354 245,328 699,680 2,880,461 8,330,927 9,185,764 Option premiums 3,741,014 550,516 4,291,530 18.3 1,158,927 402,646 609,661 871,167 975,434 273,695 3,337,397 Forwards (onshore) 1,742,807 1,823 1,744,630 7.4 838,442 681,993 142,672 81,309 214 - 6,694,617 Credit derivatives (86,375) 205,223 118,848 0.5 - 460 1,080 4,764 9,033 103,511 137,653 NDF - Non Deliverable Forward 3,377,930 333,917 3,711,847 15.9 1,013,813 968,015 771,908 653,412 178,086 126,613 2,949,671 Target flow of swap 6,889 37,081 43,970 0.2 448 266 7,302 - 12,300 23,654 68,131 Other derivative financial instruments 215,450 286,435 501,885 2.1 209,407 10,054 1,098 2,013 18,236 261,077 125,547 Total 15,260,867 8,200,497 23,461,364 100.0 3,925,941 2,250,788 1,779,049 2,312,345 4,073,764 9,119,477 22,656,494 % per maturity term 16.7 9.6 7.6 9.9 17.3 38.9 15,990,903 6,665,591 22,656,494 100.0 7,799,326 1,614,997 1,353,763 2,356,405 2,770,116 6,761,887 Total – 12/31/2017 % per maturity term 34.4 7.1 6.0 10.4 12.2 29.9 12/31/2018 12/31/2017 Adjustments to market value (in Cost Market value % 0 - 30 31 - 90 91 - 180 181 - 365 366 - 720 Over 720 days Market value results / stockholders' equity) Liabilities Swaps - difference payable ( 11,450,208) (7,903,433) ( 19,353,641) 70.4 ( 922,612) (978,592) (605,502) (1,417,153) (4,686,689) ( 10,743,093) ( 13,688,246) Option premiums (3,414,944) (510,339) ( 3,925,283) 14.3 ( 879,802) ( 499,876) ( 603,670) (831,113) ( 822,673) ( 288,149) ( 2,790,726) Forwards (onshore) (428,958) 249 (428,709) 1.6 (428,709) - - - - - ( 5,965,107) Credit derivatives (156,752) 16,905 (139,847) 0.5 - ( 10) ( 148) ( 1,643) ( 3,694) ( 134,352) ( 58,113) NDF - Non Deliverable Forward ( 3,278,651) ( 105,108) ( 3,383,759) 12.3 (888,833) ( 771,762) ( 583,199) ( 552,134) ( 150,490) (437,341) ( 3,744,759) Target flow of swap - Companies ( 78,137) (84,328) (162,465) 0.6 - - ( 15,597) - - ( 146,868) (121,878) Other derivative financial instruments (19,020) ( 72,141) ( 91,161) 0.3 (2,216) ( 2,325) (8,558) (19,983) ( 11,529) ( 46,550) ( 83,787) (18,826,670) (8,658,195) (27,484,865) 100.0 (3,122,172) (2,252,565) (1,816,674) (2,822,026) (5,675,075) (11,796,353) (26,452,616) Total % per maturity term 11.4 8.2 6.6 10.3 20.6 42.9 Total – 12/31/2017 (20,523,308) (5,929,308) (26,452,616) 100.0 (7,286,502) (1,114,011) (1,374,000) (3,327,590) (4,889,109) (8,461,404) % per maturity term 27.5 4.2 5.2 12.6 18.5 32.0 The result of derivative financial instruments in the period totals R$ (702,842) ( R$ 2,272,934 em 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.17

II - Derivatives by index and Risk Fator Balance sheet account Adjustment to market Memorandum account / Market value receivable / (received) value (in results / Notional amount (payable) paid stockholders' equity) 12/31/2018 12/31/2017 12/31/2018 12/31/2018 12/31/2018 12/31/2017 Futures contracts 585,374,881 607,500,661 - - - 157,714 267,801,004 322,997,408 - - - 157,714 Purchase commitments Shares 13,472,947 18,066,967 - - - 334 Commodities 193,613 146,587 - - - 143 Interest 243,144,673 276,269,549 - - - 3,570 Foreign currency 10,989,771 28,514,305 - - - 153,667 Commitments to sell 317,573,877 284,503,253 - - - - Shares 13,964,779 11,218,348 - - - - Commodities 154,714 167,727 - - - - Interest 264,987,517 246,471,624 - - - - Foreign currency 38,466,867 26,645,554 - - - - Swap contracts ( 5,187,056) ( 1,117,931) (6,304,987) ( 4,502,482) Asset position 939,510,190 837,299,060 6,263,152 6,785,502 13,048,654 9,185,764 Shares - 350,414 - - - 824 Commodities 6,000 - 171 188 359 - Interest 925,381,182 825,810,480 5,123,813 6,379,504 11,503,317 8,247,818 Foreign currency 14,123,008 11,138,166 1,139,168 405,810 1,544,978 937,122 Liability position 939,510,190 837,299,061 ( 11,450,208) (7,903,433) ( 19,353,641) ( 13,688,246) Shares 75,605 1,087,689 ( 4,755) 1,447 ( 3,308) ( 4,449) Commodities 619,968 - - (597) (597) - Interest 913,745,892 814,141,029 (9,409,848) ( 7,973,078) (17,382,926) (13,075,898) Foreign currency 25,068,725 22,070,343 (2,035,605) 68,795 ( 1,966,810) ( 607,899) 1,263,866,521 1,847,573,186 326,070 40,177 366,247 546,671 Option contracts 152,840,894 245,495,975 1,933,355 (30,320) 1,903,035 1,648,025 Purchase commitments - long Shares 9,873,111 8,636,715 300,898 178,501 479,399 1,016,486 Commodities 320,603 366,995 9,867 (2,767) 7,100 29,298 Interest 100,338,155 204,667,052 169,448 ( 97,994) 71,454 155,279 Foreign currency 42,309,025 31,825,213 1,453,142 (108,060) 1,345,082 446,962 Commitments to sell - long position 495,278,860 736,619,261 1,807,659 580,836 2,388,495 1,689,372 Shares 10,801,593 8,753,337 394,315 500,050 894,365 391,766 Commodities 278,490 269,075 10,867 1,524 12,391 3,591 Interest 441,673,130 703,700,934 427,210 460,018 887,228 765,494 Foreign currency 42,525,647 23,895,915 975,267 (380,756) 594,511 528,521 Purchase commitments - short 116,005,277 88,688,150 ( 1,560,813) 153,755 (1,407,058) ( 1,234,071) Shares 9,716,476 9,159,058 ( 183,972) (97,929) ( 281,901) (655,143) Commodities 316,886 278,051 ( 9,056) 6,176 ( 2,880) (20,097) Interest 69,934,131 51,475,685 (143,534) 95,217 ( 48,317) ( 86,555) Foreign currency 36,037,784 27,775,356 ( 1,224,251) 150,291 ( 1,073,960) ( 472,276) Commitments to sell - short position 499,741,490 776,769,800 ( 1,854,131) ( 664,094) ( 2,518,225) ( 1,556,655) Shares 8,898,497 10,240,744 (245,800) (503,112) ( 748,912) ( 294,176) Commodities 192,190 222,029 ( 6,290) ( 1,831) ( 8,121) (4,360) Interest 448,029,476 742,472,476 ( 527,826) ( 497,092) (1,024,918) ( 813,112) Foreign currency 42,621,327 23,834,551 ( 1,074,215) 337,941 ( 736,274) ( 445,007) 2,332,540 9,929,081 1,313,849 2,072 1,315,921 729,510 Forward contracts Purchases receivable 405,925 1,628,929 405,777 (224) 405,553 1,644,308 Shares 26,454 24 26,454 ( 251) 26,203 25 Interest 379,471 1,628,905 379,323 27 379,350 1,644,283 Purchases payable - - ( 381,490) - (381,490) ( 1,644,259) Shares - - ( 2,167) - (2,167) (24) Interest - - ( 379,323) - ( 379,323) (1,644,235) Sales receivable 1,307,190 737,424 1,337,030 2,047 1,339,077 5,050,309 Shares 1,307,190 737,424 1,291,733 2,047 1,293,780 730,408 Interest - - 45,297 - 45,297 4,319,901 Sales deliverable 619,425 7,562,728 ( 47,468) 249 (47,219) (4,320,848) Shares 2,171 50 (2,171) 3 (2,168) ( 49) Interest 44,916 4,301,865 (45,297) 246 (45,051) (4,320,540) Foreign currency 572,338 3,260,813 - - - (259) Credit derivatives 8,323,578 10,110,254 (243,127) 222,128 (20,999) 79,540 Asset position 3,824,799 5,831,392 (86,375) 205,223 118,848 137,653 Shares 1,576,176 1,954,946 (43,729) 134,250 90,521 91,739 Interest 2,248,623 3,876,446 (42,646) 70,973 28,327 45,914 Liability position 4,498,779 4,278,862 (156,752) 16,905 (139,847) (58,113) Shares 1,316,231 768,776 ( 55,323) ( 13,988) ( 69,311) ( 16,716) Interest 3,182,548 3,510,086 (101,429) 30,893 (70,536) ( 41,397) NDF - Non Deliverable Forward 225,355,054 252,627,585 99,279 228,809 328,088 (795,088) Asset position 122,494,982 119,312,353 3,377,930 333,917 3,711,847 2,949,671 Commodities 167,144 80,956 16,149 1,267 17,416 6,208 Foreign currency 122,327,838 119,231,397 3,361,781 332,650 3,694,431 2,943,463 Liability position 102,860,072 133,315,232 (3,278,651) (105,108) (3,383,759) (3,744,759) Commodities 96,028 174,535 ( 5,541) 863 ( 4,678) ( 13,755) Foreign currency 102,764,044 133,140,697 (3,273,110) (105,971) ( 3,379,081) ( 3,731,004) Target flow of swap 1,333,282 954,781 (71,248) (47,247) (118,495) (53,747) Asset position 114,532 513,781 6,889 37,081 43,970 68,131 Interest 114,532 - 1,731 20,855 22,586 - Foreign currency - 513,781 5,158 16,226 21,384 68,131 Liability position 1,218,750 441,000 (78,137) (84,328) (162,465) (121,878) Interest 1,218,750 441,000 (16,697) ( 6,682) ( 23,379) ( 121,878) Foreign currency - - ( 61,440) ( 77,646) (139,086) - Other derivative financial instruments 5,502,654 4,675,373 196,430 214,294 410,724 41,760 Asset position 4,425,622 2,693,917 215,450 286,435 501,885 125,547 Shares 346,718 416,305 2,218 9,693 11,911 28,674 Interest 4,073,906 2,151,352 213,363 64,623 277,986 94,060 Foreign currency 4,998 126,260 ( 131) 212,119 211,988 2,813 1,077,032 1,981,456 (19,020) (72,141) (91,161) (83,787) Liability position Shares 910,848 1,621,567 ( 15,806) (42,050) (57,856) ( 77,834) Interest 158,434 330,282 (2,230) (20,377) (22,607) (4,293) Foreign currency 7,750 29,607 (984) (9,714) ( 10,698) (1,660) Assets 15,260,867 8,200,497 23,461,364 22,656,494 Liabilities ( 18,826,670) (8,658,195) (27,484,865) (26,452,616) Total (3,565,803) ( 457,698) (4,023,501) ( 3,796,122) Derivative contracts mature as follows (in days): Memorandum account/notional amount 0 - 30 31 - 180 181 - 365 Over 365 12/31/2018 12/31/2017 Futures 217,179,611 193,636,109 33,968,992 140,590,169 585,374,881 607,500,661 Swaps 70,403,289 96,912,983 96,089,578 676,104,340 939,510,190 837,299,060 Options 595,516,594 130,782,234 329,833,524 207,734,169 1,263,866,521 1,847,573,186 Forwards (onshore) 1,411,885 835,204 85,221 230 2,332,540 9,929,081 Credit derivatives - 1,187,897 679,551 6,456,130 8,323,578 10,110,254 NDF - Non Deliverable Forward 76,031,612 102,024,246 30,211,957 17,087,239 225,355,054 252,627,585 Target flow of swap - 114,532 - 1,218,750 1,333,282 954,781 Other derivative financial instruments 12,496 416,899 371,113 4,702,146 5,502,654 4,675,373 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.18 II - Derivatives by index and Risk Fator Balance sheet account Adjustment to market Memorandum account / Market value receivable / (received) value (in results / Notional amount (payable) paid stockholders' equity) 12/31/2018 12/31/2017 12/31/2018 12/31/2018 12/31/2018 12/31/2017 Futures contracts 585,374,881 607,500,661 - - - 157,714 267,801,004 322,997,408 - - - 157,714 Purchase commitments Shares 13,472,947 18,066,967 - - - 334 Commodities 193,613 146,587 - - - 143 Interest 243,144,673 276,269,549 - - - 3,570 Foreign currency 10,989,771 28,514,305 - - - 153,667 Commitments to sell 317,573,877 284,503,253 - - - - Shares 13,964,779 11,218,348 - - - - Commodities 154,714 167,727 - - - - Interest 264,987,517 246,471,624 - - - - Foreign currency 38,466,867 26,645,554 - - - - Swap contracts ( 5,187,056) ( 1,117,931) (6,304,987) ( 4,502,482) Asset position 939,510,190 837,299,060 6,263,152 6,785,502 13,048,654 9,185,764 Shares - 350,414 - - - 824 Commodities 6,000 - 171 188 359 - Interest 925,381,182 825,810,480 5,123,813 6,379,504 11,503,317 8,247,818 Foreign currency 14,123,008 11,138,166 1,139,168 405,810 1,544,978 937,122 Liability position 939,510,190 837,299,061 ( 11,450,208) (7,903,433) ( 19,353,641) ( 13,688,246) Shares 75,605 1,087,689 ( 4,755) 1,447 ( 3,308) ( 4,449) Commodities 619,968 - - (597) (597) - Interest 913,745,892 814,141,029 (9,409,848) ( 7,973,078) (17,382,926) (13,075,898) Foreign currency 25,068,725 22,070,343 (2,035,605) 68,795 ( 1,966,810) ( 607,899) 1,263,866,521 1,847,573,186 326,070 40,177 366,247 546,671 Option contracts 152,840,894 245,495,975 1,933,355 (30,320) 1,903,035 1,648,025 Purchase commitments - long Shares 9,873,111 8,636,715 300,898 178,501 479,399 1,016,486 Commodities 320,603 366,995 9,867 (2,767) 7,100 29,298 Interest 100,338,155 204,667,052 169,448 ( 97,994) 71,454 155,279 Foreign currency 42,309,025 31,825,213 1,453,142 (108,060) 1,345,082 446,962 Commitments to sell - long position 495,278,860 736,619,261 1,807,659 580,836 2,388,495 1,689,372 Shares 10,801,593 8,753,337 394,315 500,050 894,365 391,766 Commodities 278,490 269,075 10,867 1,524 12,391 3,591 Interest 441,673,130 703,700,934 427,210 460,018 887,228 765,494 Foreign currency 42,525,647 23,895,915 975,267 (380,756) 594,511 528,521 Purchase commitments - short 116,005,277 88,688,150 ( 1,560,813) 153,755 (1,407,058) ( 1,234,071) Shares 9,716,476 9,159,058 ( 183,972) (97,929) ( 281,901) (655,143) Commodities 316,886 278,051 ( 9,056) 6,176 ( 2,880) (20,097) Interest 69,934,131 51,475,685 (143,534) 95,217 ( 48,317) ( 86,555) Foreign currency 36,037,784 27,775,356 ( 1,224,251) 150,291 ( 1,073,960) ( 472,276) Commitments to sell - short position 499,741,490 776,769,800 ( 1,854,131) ( 664,094) ( 2,518,225) ( 1,556,655) Shares 8,898,497 10,240,744 (245,800) (503,112) ( 748,912) ( 294,176) Commodities 192,190 222,029 ( 6,290) ( 1,831) ( 8,121) (4,360) Interest 448,029,476 742,472,476 ( 527,826) ( 497,092) (1,024,918) ( 813,112) Foreign currency 42,621,327 23,834,551 ( 1,074,215) 337,941 ( 736,274) ( 445,007) 2,332,540 9,929,081 1,313,849 2,072 1,315,921 729,510 Forward contracts Purchases receivable 405,925 1,628,929 405,777 (224) 405,553 1,644,308 Shares 26,454 24 26,454 ( 251) 26,203 25 Interest 379,471 1,628,905 379,323 27 379,350 1,644,283 Purchases payable - - ( 381,490) - (381,490) ( 1,644,259) Shares - - ( 2,167) - (2,167) (24) Interest - - ( 379,323) - ( 379,323) (1,644,235) Sales receivable 1,307,190 737,424 1,337,030 2,047 1,339,077 5,050,309 Shares 1,307,190 737,424 1,291,733 2,047 1,293,780 730,408 Interest - - 45,297 - 45,297 4,319,901 Sales deliverable 619,425 7,562,728 ( 47,468) 249 (47,219) (4,320,848) Shares 2,171 50 (2,171) 3 (2,168) ( 49) Interest 44,916 4,301,865 (45,297) 246 (45,051) (4,320,540) Foreign currency 572,338 3,260,813 - - - (259) Credit derivatives 8,323,578 10,110,254 (243,127) 222,128 (20,999) 79,540 Asset position 3,824,799 5,831,392 (86,375) 205,223 118,848 137,653 Shares 1,576,176 1,954,946 (43,729) 134,250 90,521 91,739 Interest 2,248,623 3,876,446 (42,646) 70,973 28,327 45,914 Liability position 4,498,779 4,278,862 (156,752) 16,905 (139,847) (58,113) Shares 1,316,231 768,776 ( 55,323) ( 13,988) ( 69,311) ( 16,716) Interest 3,182,548 3,510,086 (101,429) 30,893 (70,536) ( 41,397) NDF - Non Deliverable Forward 225,355,054 252,627,585 99,279 228,809 328,088 (795,088) Asset position 122,494,982 119,312,353 3,377,930 333,917 3,711,847 2,949,671 Commodities 167,144 80,956 16,149 1,267 17,416 6,208 Foreign currency 122,327,838 119,231,397 3,361,781 332,650 3,694,431 2,943,463 Liability position 102,860,072 133,315,232 (3,278,651) (105,108) (3,383,759) (3,744,759) Commodities 96,028 174,535 ( 5,541) 863 ( 4,678) ( 13,755) Foreign currency 102,764,044 133,140,697 (3,273,110) (105,971) ( 3,379,081) ( 3,731,004) Target flow of swap 1,333,282 954,781 (71,248) (47,247) (118,495) (53,747) Asset position 114,532 513,781 6,889 37,081 43,970 68,131 Interest 114,532 - 1,731 20,855 22,586 - Foreign currency - 513,781 5,158 16,226 21,384 68,131 Liability position 1,218,750 441,000 (78,137) (84,328) (162,465) (121,878) Interest 1,218,750 441,000 (16,697) ( 6,682) ( 23,379) ( 121,878) Foreign currency - - ( 61,440) ( 77,646) (139,086) - Other derivative financial instruments 5,502,654 4,675,373 196,430 214,294 410,724 41,760 Asset position 4,425,622 2,693,917 215,450 286,435 501,885 125,547 Shares 346,718 416,305 2,218 9,693 11,911 28,674 Interest 4,073,906 2,151,352 213,363 64,623 277,986 94,060 Foreign currency 4,998 126,260 ( 131) 212,119 211,988 2,813 1,077,032 1,981,456 (19,020) (72,141) (91,161) (83,787) Liability position Shares 910,848 1,621,567 ( 15,806) (42,050) (57,856) ( 77,834) Interest 158,434 330,282 (2,230) (20,377) (22,607) (4,293) Foreign currency 7,750 29,607 (984) (9,714) ( 10,698) (1,660) Assets 15,260,867 8,200,497 23,461,364 22,656,494 Liabilities ( 18,826,670) (8,658,195) (27,484,865) (26,452,616) Total (3,565,803) ( 457,698) (4,023,501) ( 3,796,122) Derivative contracts mature as follows (in days): Memorandum account/notional amount 0 - 30 31 - 180 181 - 365 Over 365 12/31/2018 12/31/2017 Futures 217,179,611 193,636,109 33,968,992 140,590,169 585,374,881 607,500,661 Swaps 70,403,289 96,912,983 96,089,578 676,104,340 939,510,190 837,299,060 Options 595,516,594 130,782,234 329,833,524 207,734,169 1,263,866,521 1,847,573,186 Forwards (onshore) 1,411,885 835,204 85,221 230 2,332,540 9,929,081 Credit derivatives - 1,187,897 679,551 6,456,130 8,323,578 10,110,254 NDF - Non Deliverable Forward 76,031,612 102,024,246 30,211,957 17,087,239 225,355,054 252,627,585 Target flow of swap - 114,532 - 1,218,750 1,333,282 954,781 Other derivative financial instruments 12,496 416,899 371,113 4,702,146 5,502,654 4,675,373 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.18

III - Derivatives by notional amount See below the composition of the Derivative Financial Instruments portfolio by type of instrument, stated at their notional amounts, per trading location (organized or over-the-counter market) and counterparties. 12/31/2018 NDF - Non Other derivative Forwards Target flow of Futures Swaps Options Credit derivatives Deliverable financial (onshore) swap Forward instruments B3 480,291,719 20,209,499 1,106,428,635 1,903,814 - 47,627,586 - - Overt-the-counter market 105,083,162 919,300,691 157,437,886 428,726 8,323,578 177,727,468 1,333,282 5,502,654 Financial institutions 104,297,286 702,846,976 110,859,755 - 7,741,583 103,172,758 - 3,601,359 Companies 785,876 150,639,473 46,126,905 428,726 581,995 73,811,020 1,333,282 1,901,295 Individuals - 65,814,242 451,226 - - 743,690 - - Total 585,374,881 939,510,190 1,263,866,521 2,332,540 8,323,578 225,355,054 1,333,282 5,502,654 Total – 12/31/2017 607,500,661 837,299,060 1,847,573,186 9,929,081 10,110,254 252,627,585 954,781 4,675,373 IV - Credit derivatives See below the composition of the Credit Derivatives (assets and liabilities) portfolio stated at their notional amounts, and their effect on calculation of Required Referential Equity. 12/31/2018 12/31/2017 Notional amount of credit Notional amount of credit Notional amount of Notional amount of protection purchased with Net position protection purchased with Net position credit protection sold credit protection sold identical underlying amount identical underlying amount Credit swaps (6,852,704) 1,470,874 (5,381,830) (6,416,313) 3,693,941 (2,722,372) Total (6,852,704) 1,470,874 (5,381,830) (6,416,313) 3,693,941 (2,722,372) The effect on the reference equity (Note 17) was R$ 46,316 (R$ 46,396 at 12/31/2017). During the period, there was no occurrence of a credit event as defined in the agreements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.19 III - Derivatives by notional amount See below the composition of the Derivative Financial Instruments portfolio by type of instrument, stated at their notional amounts, per trading location (organized or over-the-counter market) and counterparties. 12/31/2018 NDF - Non Other derivative Forwards Target flow of Futures Swaps Options Credit derivatives Deliverable financial (onshore) swap Forward instruments B3 480,291,719 20,209,499 1,106,428,635 1,903,814 - 47,627,586 - - Overt-the-counter market 105,083,162 919,300,691 157,437,886 428,726 8,323,578 177,727,468 1,333,282 5,502,654 Financial institutions 104,297,286 702,846,976 110,859,755 - 7,741,583 103,172,758 - 3,601,359 Companies 785,876 150,639,473 46,126,905 428,726 581,995 73,811,020 1,333,282 1,901,295 Individuals - 65,814,242 451,226 - - 743,690 - - Total 585,374,881 939,510,190 1,263,866,521 2,332,540 8,323,578 225,355,054 1,333,282 5,502,654 Total – 12/31/2017 607,500,661 837,299,060 1,847,573,186 9,929,081 10,110,254 252,627,585 954,781 4,675,373 IV - Credit derivatives See below the composition of the Credit Derivatives (assets and liabilities) portfolio stated at their notional amounts, and their effect on calculation of Required Referential Equity. 12/31/2018 12/31/2017 Notional amount of credit Notional amount of credit Notional amount of Notional amount of protection purchased with Net position protection purchased with Net position credit protection sold credit protection sold identical underlying amount identical underlying amount Credit swaps (6,852,704) 1,470,874 (5,381,830) (6,416,313) 3,693,941 (2,722,372) Total (6,852,704) 1,470,874 (5,381,830) (6,416,313) 3,693,941 (2,722,372) The effect on the reference equity (Note 17) was R$ 46,316 (R$ 46,396 at 12/31/2017). During the period, there was no occurrence of a credit event as defined in the agreements. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.19

V - Hedge accounting I) Cash flow - the purpose of this hedge of ITAÚ UNIBANCO PRUDENTIAL is to hedge cash flows of interest receipt and payment (CDB / Syndicated Loans / Assets Transactions / Funding and agreements to resell) and exposures to future exchange rate (anticipated transactions and unrecognized firm commitments) related to its variable interest rate risk (CDI / LIBOR/UF*/TPM*/Selic), and foreign exchange rate risk, making the cash flow constant (fixed rate) and regardless of the variations of DI CETIP Over, LIBOR/ UF*/ TPM* / Selic and foreign exchange rate. LIBOR/ UF*/ TPM* / Selic and foreign exchange rate*UF (Chilean Unit of Account) / TPM (Monetary Policy Rate). 12/31/2018 Hedge Instruments Strategies Book value Variation in the amounts Variation in the amounts Cash flow hedge recognized in Nominal Value used to calculate hedge reserve Stockholders’ Equity (*) ineffectiveness Assets Liabilities Interest rate risk Hedge of deposits and securities purchased under agreements to resell - 32,114,131 (1,818,903) (3,254,137) 33,425,154 (1,833,872) Hedge of assets transactions 7,866,056 - 136,073 136,073 8,003,039 136,073 Hedge of asset-backed securities under repurchase agreements 36,667,834 - 353,457 353,457 38,013,034 359,421 Hedge of UF - denominated assets 13,247,370 - 26,432 26,432 13,220,938 22,598 Hedge of funding - 3,200,348 77,941 85,667 3,104,801 81,695 Hedge of loan operations 274,094 - 5,726 5,726 268,368 7,234 Foreign exchange risk Hedge of highly probable forecast transactions 71,156 - 5,251 5,251 71,156 5,251 Variable costs risks Hedge of highly probable forecast transactions 18,792,559 - (113,036) (113,036) 18,792,558 (113,036) Total 76,919,069 35,314,479 (1,327,059) (2,754,567) 114,899,048 (1,334,636) 12/31/2017 Hedge Item Hedge Instruments Book value Strategies Variation in the amounts Variation in the amounts Cash flow hedge recognized in Nominal Value used to calculate hedge reserve Stockholders’ Equity (*) ineffectiveness Assets Liabilities Interest rate risk Hedge of deposits and securities purchased under agreements to resell - 70,663,298 (3,595,979) (3,595,979) 69,253,139 (3,598,114) Hedge of assets transactions 23,489,527 - 429,349 429,349 23,919,178 429,355 Hedge of asset-backed securities under repurchase agreements 31,099,006 - 672,321 672,321 31,855,096 674,696 Hedge of UF - denominated assets 15,227,170 - (28,191) (28,191) 15,227,170 (22,093) Hedge of funding - 6,444,407 (16,344) (16,344) 6,444,407 (15,668) Hedge of loan operations 1,123,646 - 13,693 13,693 1,123,646 13,909 Foreign exchange risk Hedge of highly probable forecast transactions 218,879 - (4,718) (4,718) 232,167 (4,718) Total 71,158,228 77,107,705 (2,529,869) (2,529,869) 148,054,803 (2,522,633) (*) Recorded under heading Asset Valuation Adjustments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.20 V - Hedge accounting I) Cash flow - the purpose of this hedge of ITAÚ UNIBANCO PRUDENTIAL is to hedge cash flows of interest receipt and payment (CDB / Syndicated Loans / Assets Transactions / Funding and agreements to resell) and exposures to future exchange rate (anticipated transactions and unrecognized firm commitments) related to its variable interest rate risk (CDI / LIBOR/UF*/TPM*/Selic), and foreign exchange rate risk, making the cash flow constant (fixed rate) and regardless of the variations of DI CETIP Over, LIBOR/ UF*/ TPM* / Selic and foreign exchange rate. LIBOR/ UF*/ TPM* / Selic and foreign exchange rate*UF (Chilean Unit of Account) / TPM (Monetary Policy Rate). 12/31/2018 Hedge Instruments Strategies Book value Variation in the amounts Variation in the amounts Cash flow hedge recognized in Nominal Value used to calculate hedge reserve Stockholders’ Equity (*) ineffectiveness Assets Liabilities Interest rate risk Hedge of deposits and securities purchased under agreements to resell - 32,114,131 (1,818,903) (3,254,137) 33,425,154 (1,833,872) Hedge of assets transactions 7,866,056 - 136,073 136,073 8,003,039 136,073 Hedge of asset-backed securities under repurchase agreements 36,667,834 - 353,457 353,457 38,013,034 359,421 Hedge of UF - denominated assets 13,247,370 - 26,432 26,432 13,220,938 22,598 Hedge of funding - 3,200,348 77,941 85,667 3,104,801 81,695 Hedge of loan operations 274,094 - 5,726 5,726 268,368 7,234 Foreign exchange risk Hedge of highly probable forecast transactions 71,156 - 5,251 5,251 71,156 5,251 Variable costs risks Hedge of highly probable forecast transactions 18,792,559 - (113,036) (113,036) 18,792,558 (113,036) Total 76,919,069 35,314,479 (1,327,059) (2,754,567) 114,899,048 (1,334,636) 12/31/2017 Hedge Item Hedge Instruments Book value Strategies Variation in the amounts Variation in the amounts Cash flow hedge recognized in Nominal Value used to calculate hedge reserve Stockholders’ Equity (*) ineffectiveness Assets Liabilities Interest rate risk Hedge of deposits and securities purchased under agreements to resell - 70,663,298 (3,595,979) (3,595,979) 69,253,139 (3,598,114) Hedge of assets transactions 23,489,527 - 429,349 429,349 23,919,178 429,355 Hedge of asset-backed securities under repurchase agreements 31,099,006 - 672,321 672,321 31,855,096 674,696 Hedge of UF - denominated assets 15,227,170 - (28,191) (28,191) 15,227,170 (22,093) Hedge of funding - 6,444,407 (16,344) (16,344) 6,444,407 (15,668) Hedge of loan operations 1,123,646 - 13,693 13,693 1,123,646 13,909 Foreign exchange risk Hedge of highly probable forecast transactions 218,879 - (4,718) (4,718) 232,167 (4,718) Total 71,158,228 77,107,705 (2,529,869) (2,529,869) 148,054,803 (2,522,633) (*) Recorded under heading Asset Valuation Adjustments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.20

12/31/2018 Variation in the (1) Variation in value Hedge Amount reclassified Book value amounts Hedge Instruments recognized in ineffectiveness from Cash flow Nominal Value used to calculate Stockholders’ recognized in hedge reserve into hedge (2) Assets Liabilities income income Equity ineffectiveness (3) Interest rate risk Interest rate futures 79,441,227 255,949 20,541 (1,338,378) (1,329,373) (9,005) - Interest rate Swap 16,594,107 3,023,106 13,519,138 111,527 110,099 1,428 - (4) Foreign exchange risk DDI Future 18,798,252 53,939 - (112,536) (112,536) - - Option 65,462 9,083 - 4,751 4,751 - - Total 114,899,048 3,342,077 13,539,679 (1,334,636) (1,327,059) (7,577) 12/31/2017 Variation in the Hedge (1) Variation in value Amount reclassified Book value amounts ineffectiveness Hedge Instruments recognized in from Cash flow Nominal Value used to calculate recognized in Stockholders’ hedge reserve into hedge income (2) Assets Liabilities Equity income ineffectiveness (3) Interest rate risk Interest rate futures 125,027,413 13,151 31,957 (2,494,063) (2,494,309) 245 - Interest rate Swap 22,795,223 36,002 15,668 (23,852) (30,842) 6,991 - (4) Foreign exchange risk Option 232,167 4,718 - (4,718) (4,718) - - Total 148,054,803 53,871 47,625 (2,522,633) (2,529,869) 7,236 - (1) Recorded under heading Derivative financial instruments. (2) Recorded under heading Asset Valuation Adjustments. (3) DI Future negotiated on B3 and interest rate swap negotiated on Chicago Mercantile Exchange. (4) DDI Futures contracts and Dollar Purchase Options negotiated on B3. The gains or losses related to the accounting hedge of cash flows that ITAÚ UNIBANCO HOLDING CONSOLIDATED expect to recognize in results in the following 12 months, totaling R$ (1,760,220) (R$ (1,907,845) at 12/31/2017). In the period ended 12/31/2018 was recognized amount of R$ (570,298) in result. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.21 12/31/2018 Variation in the (1) Variation in value Hedge Amount reclassified Book value amounts Hedge Instruments recognized in ineffectiveness from Cash flow Nominal Value used to calculate Stockholders’ recognized in hedge reserve into hedge (2) Assets Liabilities income income Equity ineffectiveness (3) Interest rate risk Interest rate futures 79,441,227 255,949 20,541 (1,338,378) (1,329,373) (9,005) - Interest rate Swap 16,594,107 3,023,106 13,519,138 111,527 110,099 1,428 - (4) Foreign exchange risk DDI Future 18,798,252 53,939 - (112,536) (112,536) - - Option 65,462 9,083 - 4,751 4,751 - - Total 114,899,048 3,342,077 13,539,679 (1,334,636) (1,327,059) (7,577) 12/31/2017 Variation in the Hedge (1) Variation in value Amount reclassified Book value amounts ineffectiveness Hedge Instruments recognized in from Cash flow Nominal Value used to calculate recognized in Stockholders’ hedge reserve into hedge income (2) Assets Liabilities Equity income ineffectiveness (3) Interest rate risk Interest rate futures 125,027,413 13,151 31,957 (2,494,063) (2,494,309) 245 - Interest rate Swap 22,795,223 36,002 15,668 (23,852) (30,842) 6,991 - (4) Foreign exchange risk Option 232,167 4,718 - (4,718) (4,718) - - Total 148,054,803 53,871 47,625 (2,522,633) (2,529,869) 7,236 - (1) Recorded under heading Derivative financial instruments. (2) Recorded under heading Asset Valuation Adjustments. (3) DI Future negotiated on B3 and interest rate swap negotiated on Chicago Mercantile Exchange. (4) DDI Futures contracts and Dollar Purchase Options negotiated on B3. The gains or losses related to the accounting hedge of cash flows that ITAÚ UNIBANCO HOLDING CONSOLIDATED expect to recognize in results in the following 12 months, totaling R$ (1,760,220) (R$ (1,907,845) at 12/31/2017). In the period ended 12/31/2018 was recognized amount of R$ (570,298) in result. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.21

II) Market risk – The hedging strategies against market risk of ITAÚ UNIBANCO PRUDENTIAL consist of hedge of exposure to variation in market risk, in interest receipts, which are attributable to changes in interest rates related to recognized assets and liabilities. 12/31/2018 Hedged Item Hedge Instruments Variation in the Book value Fair value adjustments Strategies Variation in value amounts recognized in used to calculate Nominal Value (*) hedge income Assets Liabilities Assets Liabilities ineffectiveness Interest rate risk Hedge of loan operations 7,065,865 - 7,119,014 - 53,148 7,065,865 (54,339) Hedge of funding - 9,123,952 - 9,080,691 (43,261) 9,123,952 43,260 Hedge of available-for-sale securities 9,386,420 - 9,672,283 - 285,864 9,456,528 (274,994) Total 16,452,285 9,123,952 16,791,297 9,080,691 295,751 25,646,345 (286,073) 12/31/2017 Hedged Item Hedge Instruments Variation in the Book value Fair value adjustments Strategies Variation in value amounts used to calculate Nominal Value recognized in (*) hedge income Assets Liabilities Assets Liabilities ineffectiveness Interest rate risk Hedge of loan operations 5,976,642 - 5,926,947 - (49,695) 5,976,642 51,950 Hedge of funding - 12,156,582 - 12,264,173 107,591 12,156,582 (113,877) Hedge of syndicated loan - 794,221 - 793,885 (336) 794,221 435 Hedge of available-for-sale securities 482,415 - 449,681 - (32,734) 482,415 34,418 Total 6,459,057 12,950,803 6,376,628 13,058,058 24,826 19,409,860 (27,074) (*) Recorded under heading Results from Securities and Derivative Financial Instruments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.22 II) Market risk – The hedging strategies against market risk of ITAÚ UNIBANCO PRUDENTIAL consist of hedge of exposure to variation in market risk, in interest receipts, which are attributable to changes in interest rates related to recognized assets and liabilities. 12/31/2018 Hedged Item Hedge Instruments Variation in the Book value Fair value adjustments Strategies Variation in value amounts recognized in used to calculate Nominal Value (*) hedge income Assets Liabilities Assets Liabilities ineffectiveness Interest rate risk Hedge of loan operations 7,065,865 - 7,119,014 - 53,148 7,065,865 (54,339) Hedge of funding - 9,123,952 - 9,080,691 (43,261) 9,123,952 43,260 Hedge of available-for-sale securities 9,386,420 - 9,672,283 - 285,864 9,456,528 (274,994) Total 16,452,285 9,123,952 16,791,297 9,080,691 295,751 25,646,345 (286,073) 12/31/2017 Hedged Item Hedge Instruments Variation in the Book value Fair value adjustments Strategies Variation in value amounts used to calculate Nominal Value recognized in (*) hedge income Assets Liabilities Assets Liabilities ineffectiveness Interest rate risk Hedge of loan operations 5,976,642 - 5,926,947 - (49,695) 5,976,642 51,950 Hedge of funding - 12,156,582 - 12,264,173 107,591 12,156,582 (113,877) Hedge of syndicated loan - 794,221 - 793,885 (336) 794,221 435 Hedge of available-for-sale securities 482,415 - 449,681 - (32,734) 482,415 34,418 Total 6,459,057 12,950,803 6,376,628 13,058,058 24,826 19,409,860 (27,074) (*) Recorded under heading Results from Securities and Derivative Financial Instruments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.22

12/31/2018 (*) Variation in fair Hedge Book value Hedge Instruments value used to ineffectiveness Nominal Value calculate hedge recognized in Assets Liabilities ineffectiveness income Interest rate risk Interest rate swap 20,691,541 85,680 145,311 (59,631) 9,694 Others Derivatives 4,954,804 - 5,181,246 (226,442) (16) Total 25,646,345 85,680 5,326,557 (286,073) 9,678 12/31/2017 (*) Variation in fair Hedge Book value Hedge Instruments value used to ineffectiveness Nominal Value calculate hedge recognized in Assets Liabilities ineffectiveness income Interest rate risk Interest rate swap 19,409,860 86,368 113,443 (27,074) (2,248) Total 19,409,860 86,368 113,443 (27,074) (2,248) (*) Recorded under heading Derivative financial instruments. To protect against market risk variation upon receipt and payment of interest, ITAÚ UNIBANCO HOLDING PRUDENTIAL uses interest rate swap contracts. Hedge items refer to prefixed assets and liabilities denominated in Chilean Unit of Account – CLF, fixed rate and denominated in Euros and dollars, issued by subsidiaries in Chile, London and Colombia, respectively. Receipts (payments) of interest flows are expected to occur and will affect the statement of income in monthly periods. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.23 12/31/2018 (*) Variation in fair Hedge Book value Hedge Instruments value used to ineffectiveness Nominal Value calculate hedge recognized in Assets Liabilities ineffectiveness income Interest rate risk Interest rate swap 20,691,541 85,680 145,311 (59,631) 9,694 Others Derivatives 4,954,804 - 5,181,246 (226,442) (16) Total 25,646,345 85,680 5,326,557 (286,073) 9,678 12/31/2017 (*) Variation in fair Hedge Book value Hedge Instruments value used to ineffectiveness Nominal Value calculate hedge recognized in Assets Liabilities ineffectiveness income Interest rate risk Interest rate swap 19,409,860 86,368 113,443 (27,074) (2,248) Total 19,409,860 86,368 113,443 (27,074) (2,248) (*) Recorded under heading Derivative financial instruments. To protect against market risk variation upon receipt and payment of interest, ITAÚ UNIBANCO HOLDING PRUDENTIAL uses interest rate swap contracts. Hedge items refer to prefixed assets and liabilities denominated in Chilean Unit of Account – CLF, fixed rate and denominated in Euros and dollars, issued by subsidiaries in Chile, London and Colombia, respectively. Receipts (payments) of interest flows are expected to occur and will affect the statement of income in monthly periods. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.23

III) Hedge of net investment in foreign operations – ITAÚ UNIBANCO PRUDENTIAL's strategy of net investments in foreign operations consist of a hedge of the exposure in foreign currency arising from the functional currency of foreign operations, compared to the functional currency of the head office. 12/31/2018 Hedged item Hedge Instruments Variation in the Book value Variation in value Strategies amounts recognized in Foreign currency Nominal Value used to calculate Stockholders’ convertion reserve hedge Equity (*) Assets Liabilities ineffectiveness Foreign exchange risk Hedge of net investment in foreign operations - 14,820,034 (3,064,444) (3,064,444) 12,549,847 (3,190,943) Total - 14,820,034 (3,064,444) (3,064,444) 12,549,847 (3,190,943) 12/31/2017 Hedged item Hedge Instruments Variation in the Book value Variation in value Strategies Nominal amounts recognized in Foreign currency Value used to calculate Stockholders’ convertion reserve hedge Assets Liabilities Equity (*) ineffectiveness Foreign exchange risk Hedge of net investment in foreign operations - 13,074,449 (1,375,790) (1,375,790) 10,562,047 (1,502,289) Total - 13,074,449 (1,375,790) (1,375,790) 10,562,047 (1,502,289) (*) Recorded under heading Asset Valuation Adjustments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.24 III) Hedge of net investment in foreign operations – ITAÚ UNIBANCO PRUDENTIAL's strategy of net investments in foreign operations consist of a hedge of the exposure in foreign currency arising from the functional currency of foreign operations, compared to the functional currency of the head office. 12/31/2018 Hedged item Hedge Instruments Variation in the Book value Variation in value Strategies amounts recognized in Foreign currency Nominal Value used to calculate Stockholders’ convertion reserve hedge Equity (*) Assets Liabilities ineffectiveness Foreign exchange risk Hedge of net investment in foreign operations - 14,820,034 (3,064,444) (3,064,444) 12,549,847 (3,190,943) Total - 14,820,034 (3,064,444) (3,064,444) 12,549,847 (3,190,943) 12/31/2017 Hedged item Hedge Instruments Variation in the Book value Variation in value Strategies Nominal amounts recognized in Foreign currency Value used to calculate Stockholders’ convertion reserve hedge Assets Liabilities Equity (*) ineffectiveness Foreign exchange risk Hedge of net investment in foreign operations - 13,074,449 (1,375,790) (1,375,790) 10,562,047 (1,502,289) Total - 13,074,449 (1,375,790) (1,375,790) 10,562,047 (1,502,289) (*) Recorded under heading Asset Valuation Adjustments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.24

12/31/2018 Variation in the Variation in the (1) Hedge Amount reclassified Book value amount Nominal amounts Hedge Instruments ineffectiveness from foreign recognized in Value used to calculate recognized in currency Stockholders’ hedge income convertion reserve Assets Liabilities (2) ineffectiveness Equity (3) Interest rate risk DDI Future 27,990,005 - 112,983 (4,087,302) (3,996,140) (91,162) - Forward (1,470,385) 1,059,165 - 55,244 64,742 (9,498) - NDF - Non Deliverable Forward (13,166,308) 253,969 - 746,396 772,235 (25,839) - Financial Assets (803,465) 803,465 - 94,719 94,719 - - Total 12,549,847 2,116,599 112,983 (3,190,943) (3,064,444) (126,499) - 12/31/2017 Variation in the Variation in the (1) Hedge Amount reclassified Book value amount Nominal amounts Hedge Instruments ineffectiveness from foreign recognized in Value used to calculate recognized in currency Stockholders’ hedge income convertion reserve Assets Liabilities (2) ineffectiveness Equity (3) Interest rate risk DDI Future 23,641,449 48,622 - (421,840) (330,678) (91,162) - Forward (1,065,031) 1,050,035 - (69,837) (60,339) (9,498) - NDF - Non Deliverable Forward (11,473,807) - 356,654 (927,176) (901,337) (25,839) - Financial Assets (540,564) 540,564 - (83,436) (83,436) - - Total 10,562,047 1,639,221 356,654 (1,502,289) (1,375,790) (126,499) - (1) Recorded under heading Derivative financial instruments. (2) Recorded under heading Asset Valuation Adjustments. (3) DDI Future negotiated on B3 and Financial Assets and Forward contracts or NDF contracts entered into by our subsidiaries abroad. Receipts (payments) of interest flows are expected to occur and will affect the statement of income upon the total or partial disposal of investments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.25 12/31/2018 Variation in the Variation in the (1) Hedge Amount reclassified Book value amount Nominal amounts Hedge Instruments ineffectiveness from foreign recognized in Value used to calculate recognized in currency Stockholders’ hedge income convertion reserve Assets Liabilities (2) ineffectiveness Equity (3) Interest rate risk DDI Future 27,990,005 - 112,983 (4,087,302) (3,996,140) (91,162) - Forward (1,470,385) 1,059,165 - 55,244 64,742 (9,498) - NDF - Non Deliverable Forward (13,166,308) 253,969 - 746,396 772,235 (25,839) - Financial Assets (803,465) 803,465 - 94,719 94,719 - - Total 12,549,847 2,116,599 112,983 (3,190,943) (3,064,444) (126,499) - 12/31/2017 Variation in the Variation in the (1) Hedge Amount reclassified Book value amount Nominal amounts Hedge Instruments ineffectiveness from foreign recognized in Value used to calculate recognized in currency Stockholders’ hedge income convertion reserve Assets Liabilities (2) ineffectiveness Equity (3) Interest rate risk DDI Future 23,641,449 48,622 - (421,840) (330,678) (91,162) - Forward (1,065,031) 1,050,035 - (69,837) (60,339) (9,498) - NDF - Non Deliverable Forward (11,473,807) - 356,654 (927,176) (901,337) (25,839) - Financial Assets (540,564) 540,564 - (83,436) (83,436) - - Total 10,562,047 1,639,221 356,654 (1,502,289) (1,375,790) (126,499) - (1) Recorded under heading Derivative financial instruments. (2) Recorded under heading Asset Valuation Adjustments. (3) DDI Future negotiated on B3 and Financial Assets and Forward contracts or NDF contracts entered into by our subsidiaries abroad. Receipts (payments) of interest flows are expected to occur and will affect the statement of income upon the total or partial disposal of investments. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.25

IV) We present below the maturity terms of cash flow hedge, market risk hedge strategies and Hedge of net investiment in foreign operations: 12/31/2018 Strategies 0-1 year 1-2 years 2-3 years 3-4 years 4-5 years 5-10 years Over 10 years Total Hedge of deposits and securities purchased under agreements to resell 14,366,844 5,401,361 3,894,329 - 5,896,661 3,865,959 - 33,425,154 Hedge of highly probable anticipated transactions 71,156 18,792,558 - - - - - 18,863,714 Hedge of assets transactions 6,345,876 - 1,657,163 - - - - 8,003,039 Hedge of assets denominated in UF 12,240,520 924,722 55,696 - - - - 13,220,938 Hedge of funding (Cash flow) 2,873,893 - - - - 230,908 - 3,104,801 Hedge of loan operations (Cash flow) - 27,955 162,139 78,274 - - - 268,368 Hedge of loan operations (Market risk) 293,174 1,416,276 1,793,289 1,379,196 375,026 821,215 987,689 7,065,865 Hedge of funding (Market risk) 1,590,017 297,400 154,120 391,370 377,489 3,970,927 2,342,629 9,123,952 Hedge of available-for-sale securities 4,242,147 172,726 2,481,738 72,171 876,857 1,206,657 404,232 9,456,528 Asset-backed securities under repurchase agreements 26,943,094 5,837,628 1,517,428 - 3,714,884 - - 38,013,034 (*) Hedge of net investment in foreign operations 12,549,847 - - - - - - 12,549,847 Total 81,516,568 32,870,626 11,715,902 1,921,011 11,240,917 10,095,666 3,734,550 153,095,240 12/31/2017 Strategies 0-1 year 1-2 years 2-3 years 3-4 years 4-5 years 5-10 years Over 10 years Total Hedge of deposits and securities purchased under agreements to resell 35,973,635 12,229,910 6,985,466 12,403,273 - 1,660,855 - 69,253,139 Hedge of highly probable anticipated transactions 162,309 69,858 - - - - - 232,167 Hedge of assets transactions 16,725,587 5,940,862 - 1,252,729 - - - 23,919,178 Hedge of assets denominated in UF 12,352,296 2,822,005 - 52,869 - - - 15,227,170 Hedge of funding (Cash flow) 1,645,816 748,636 1,026,886 884,262 525,283 1,613,524 - 6,444,407 Hedge of loan operations (Cash flow) - - 26,910 156,078 75,348 865,310 - 1,123,646 Hedge of loan operations (Market risk) 268,321 143,027 628,188 1,501,716 1,334,664 642,213 1,458,513 5,976,642 Hedge of syndicated loan (Market risk) 794,221 - - - - - - 794,221 Hedge of funding (Market risk) 2,399,309 3,669,286 799,462 217,004 347,472 2,099,107 2,624,942 12,156,582 Hedge of available-for-sale securities - - 222,909 - - 259,506 - 482,415 Asset-backed securities under repurchase agreements 250,600 25,208,848 3,956,763 1,349,092 - 1,089,793 - 31,855,096 (*) 10,562,047 - - - - - - 10,562,047 Hedge of net investment in foreign operations Total 81,134,141 50,832,432 13,646,584 17,817,023 2,282,767 8,230,308 4,083,455 178,026,710 (*) Classified as current, since instruments are frequently renewed. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.26 IV) We present below the maturity terms of cash flow hedge, market risk hedge strategies and Hedge of net investiment in foreign operations: 12/31/2018 Strategies 0-1 year 1-2 years 2-3 years 3-4 years 4-5 years 5-10 years Over 10 years Total Hedge of deposits and securities purchased under agreements to resell 14,366,844 5,401,361 3,894,329 - 5,896,661 3,865,959 - 33,425,154 Hedge of highly probable anticipated transactions 71,156 18,792,558 - - - - - 18,863,714 Hedge of assets transactions 6,345,876 - 1,657,163 - - - - 8,003,039 Hedge of assets denominated in UF 12,240,520 924,722 55,696 - - - - 13,220,938 Hedge of funding (Cash flow) 2,873,893 - - - - 230,908 - 3,104,801 Hedge of loan operations (Cash flow) - 27,955 162,139 78,274 - - - 268,368 Hedge of loan operations (Market risk) 293,174 1,416,276 1,793,289 1,379,196 375,026 821,215 987,689 7,065,865 Hedge of funding (Market risk) 1,590,017 297,400 154,120 391,370 377,489 3,970,927 2,342,629 9,123,952 Hedge of available-for-sale securities 4,242,147 172,726 2,481,738 72,171 876,857 1,206,657 404,232 9,456,528 Asset-backed securities under repurchase agreements 26,943,094 5,837,628 1,517,428 - 3,714,884 - - 38,013,034 (*) Hedge of net investment in foreign operations 12,549,847 - - - - - - 12,549,847 Total 81,516,568 32,870,626 11,715,902 1,921,011 11,240,917 10,095,666 3,734,550 153,095,240 12/31/2017 Strategies 0-1 year 1-2 years 2-3 years 3-4 years 4-5 years 5-10 years Over 10 years Total Hedge of deposits and securities purchased under agreements to resell 35,973,635 12,229,910 6,985,466 12,403,273 - 1,660,855 - 69,253,139 Hedge of highly probable anticipated transactions 162,309 69,858 - - - - - 232,167 Hedge of assets transactions 16,725,587 5,940,862 - 1,252,729 - - - 23,919,178 Hedge of assets denominated in UF 12,352,296 2,822,005 - 52,869 - - - 15,227,170 Hedge of funding (Cash flow) 1,645,816 748,636 1,026,886 884,262 525,283 1,613,524 - 6,444,407 Hedge of loan operations (Cash flow) - - 26,910 156,078 75,348 865,310 - 1,123,646 Hedge of loan operations (Market risk) 268,321 143,027 628,188 1,501,716 1,334,664 642,213 1,458,513 5,976,642 Hedge of syndicated loan (Market risk) 794,221 - - - - - - 794,221 Hedge of funding (Market risk) 2,399,309 3,669,286 799,462 217,004 347,472 2,099,107 2,624,942 12,156,582 Hedge of available-for-sale securities - - 222,909 - - 259,506 - 482,415 Asset-backed securities under repurchase agreements 250,600 25,208,848 3,956,763 1,349,092 - 1,089,793 - 31,855,096 (*) 10,562,047 - - - - - - 10,562,047 Hedge of net investment in foreign operations Total 81,134,141 50,832,432 13,646,584 17,817,023 2,282,767 8,230,308 4,083,455 178,026,710 (*) Classified as current, since instruments are frequently renewed. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.26

g) Sensitivity analysis (trading and banking portfolios) In compliance with CVM Instruction No. 475, ITAÚ UNIBANCO HOLDING PRUDENTIAL carried out a sensitivity analysis by market risk factors considered relevant to which it was exposed. The biggest losses arising, by risk factor, in each scenario, were stated with impact on result, net of tax effects, by providing a vision of the ITAÚ UNIBANCO HOLDING PRUDENTIAL exposure under exceptional scenarios. The sensitivity analyses of the non-trading and the trading portfolio shown in this report are an evaluation of a static position of the portfolio exposure and, therefore, do not consider the management’s quick response capacity (treasury and control areas), which triggers risk mitigating measures, whenever a situation of high loss or risk is identified by minimizing the sensitivity towards significant losses. In addition, we point out that the presented results do not necessarily translate into accounting results, because the study's sole purpose is to disclose the exposure to risks and the respective protective actions, taking into account the fair value of financial instruments, irrespective of the accounting practices adopted by the ITAÚ UNIBANCO HOLDING PRUDENTIAL. Trading portfolio Exposures 12/31/2018 (*) Scenarios Risk factors Risk of variation in: I II III Interest Rate Fixed Income Interest Rates in reais (193) (18,277) (56,547) Foreign Exchange Linked Foreign Exchange Linked Interest Rates 30 (8,951) (31,199) Foreign Exchange Rates Prices of Foreign Currencies (5,011) (185,534) (451,602) (494) (19,537) (41,174) Price Index Linked Interest of Inflation coupon TR TR Linked Interest Rates - - (1) 540 (23,026) 45,451 Equities Prices of Equities Other Exposures that do not fall under the definitions above (1) (2,542) (8,098) TOTAL (5,129) (257,867) (543,170) (*) Amounts net of tax effects. 12/31/2018 (*) Trading and Banking portfolios Exposures Scenarios Risk factors Risk of variation in: I II III (7,890) (1,288,888) (2,549,552) Interest Rate Fixed Income Interest Rates in reais (1,595) (245,169) (477,881) Foreign Exchange Linked Foreign Exchange Linked Interest Rates (5,253) (197,489) (473,899) Foreign Exchange Rates Prices of Foreign Currencies (2,650) (228,519) (418,378) Price Index Linked Interest of Inflation coupon 207 (31,924) (66,204) TR TR Linked Interest Rates Equities Prices of Equities 2,801 (79,546) (67,589) Other Exposures that do not fall under the definitions above 63 6,282 11,175 TOTAL (14,317) (2,065,253) (4,042,328) (*) Amounts net of tax effects. The following scenarios are used to measure the sensitivity: · Scenario I: Addition of 1 base point to the fixed interest rate, currency coupon, inflation , and interest rate index, and 1 percentage point in currency and share prices; · Scenario II: Shocks of 25 percent in interest fixed rates, currency coupon, inflation, interest rate indexes and currency and share prices, both for growth and fall, considering the largest resulting losses per risk factor; · Scenario III: Shocks of 50 percent in interest fixed rates, currency coupon, inflation, interest rate indexes and currency and share prices, both for growth and fall, considering the largest resulting losses per risk factor. Derivative financial instruments engaged by ITAÚ UNIBANCO HOLDING PRUDENTIAL are shown in the item Derivative financial instruments in this note. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.27 g) Sensitivity analysis (trading and banking portfolios) In compliance with CVM Instruction No. 475, ITAÚ UNIBANCO HOLDING PRUDENTIAL carried out a sensitivity analysis by market risk factors considered relevant to which it was exposed. The biggest losses arising, by risk factor, in each scenario, were stated with impact on result, net of tax effects, by providing a vision of the ITAÚ UNIBANCO HOLDING PRUDENTIAL exposure under exceptional scenarios. The sensitivity analyses of the non-trading and the trading portfolio shown in this report are an evaluation of a static position of the portfolio exposure and, therefore, do not consider the management’s quick response capacity (treasury and control areas), which triggers risk mitigating measures, whenever a situation of high loss or risk is identified by minimizing the sensitivity towards significant losses. In addition, we point out that the presented results do not necessarily translate into accounting results, because the study's sole purpose is to disclose the exposure to risks and the respective protective actions, taking into account the fair value of financial instruments, irrespective of the accounting practices adopted by the ITAÚ UNIBANCO HOLDING PRUDENTIAL. Trading portfolio Exposures 12/31/2018 (*) Scenarios Risk factors Risk of variation in: I II III Interest Rate Fixed Income Interest Rates in reais (193) (18,277) (56,547) Foreign Exchange Linked Foreign Exchange Linked Interest Rates 30 (8,951) (31,199) Foreign Exchange Rates Prices of Foreign Currencies (5,011) (185,534) (451,602) (494) (19,537) (41,174) Price Index Linked Interest of Inflation coupon TR TR Linked Interest Rates - - (1) 540 (23,026) 45,451 Equities Prices of Equities Other Exposures that do not fall under the definitions above (1) (2,542) (8,098) TOTAL (5,129) (257,867) (543,170) (*) Amounts net of tax effects. 12/31/2018 (*) Trading and Banking portfolios Exposures Scenarios Risk factors Risk of variation in: I II III (7,890) (1,288,888) (2,549,552) Interest Rate Fixed Income Interest Rates in reais (1,595) (245,169) (477,881) Foreign Exchange Linked Foreign Exchange Linked Interest Rates (5,253) (197,489) (473,899) Foreign Exchange Rates Prices of Foreign Currencies (2,650) (228,519) (418,378) Price Index Linked Interest of Inflation coupon 207 (31,924) (66,204) TR TR Linked Interest Rates Equities Prices of Equities 2,801 (79,546) (67,589) Other Exposures that do not fall under the definitions above 63 6,282 11,175 TOTAL (14,317) (2,065,253) (4,042,328) (*) Amounts net of tax effects. The following scenarios are used to measure the sensitivity: · Scenario I: Addition of 1 base point to the fixed interest rate, currency coupon, inflation , and interest rate index, and 1 percentage point in currency and share prices; · Scenario II: Shocks of 25 percent in interest fixed rates, currency coupon, inflation, interest rate indexes and currency and share prices, both for growth and fall, considering the largest resulting losses per risk factor; · Scenario III: Shocks of 50 percent in interest fixed rates, currency coupon, inflation, interest rate indexes and currency and share prices, both for growth and fall, considering the largest resulting losses per risk factor. Derivative financial instruments engaged by ITAÚ UNIBANCO HOLDING PRUDENTIAL are shown in the item Derivative financial instruments in this note. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.27

Note 6 - Loan, lease and other credit operations a) Composition of the portfolio with credit granting characteristics I – By type of operations and risk level 12/31/2018 12/31/2017 Risk levels AA A B C D E F G H Total Total Loan operations 224,121,979 1 08,717,199 4 9,491,397 18,295,963 8 ,801,536 4 ,742,726 4 ,255,670 5 ,568,357 11,132,605 4 35,127,432 4 07,642,734 Loans and discounted trade receivables 9 3,068,015 88,539,328 3 6,647,432 1 5,120,818 7 ,483,218 3 ,573,051 3,025,695 3 ,526,229 9 ,184,723 2 60,168,509 2 42,986,501 Financing 5 6,784,075 1 3,372,767 1 0,322,388 2,111,362 728,766 823,252 5 64,987 1 ,745,227 1,194,759 8 7,647,583 8 0,855,445 Farming and agribusiness financing 7 ,461,534 8 62,905 4 32,869 71,057 7 9,980 5 4,080 490 1,163 25,402 8 ,989,480 8,710,216 Real estate financing 66,808,355 5,942,199 2 ,088,708 992,726 5 09,572 292,343 664,498 295,738 7 27,721 7 8,321,860 7 5,090,572 Lease operations 1,627,447 4 ,068,573 1,116,042 2 91,831 114,802 4 9,040 1 36,356 36,550 1 11,878 7,552,519 7,725,869 Credit card operations 2 86,979 7 1,984,550 3 ,210,021 2 ,624,404 1 ,155,578 6 51,936 6 23,505 502,367 3 ,145,185 8 4,184,525 72,851,205 (1) Advance on exchange contracts 2,489,773 625,940 480,243 84,089 84,891 8 ,972 33,168 1 6,119 32,493 3,855,688 4 ,181,813 (2) Other sundry receivables 6 ,950 472,130 247 32,346 1,488 131 990,865 5,373 253,872 1,763,402 1 ,195,974 Total operations with credit granting characteristics 228,533,128 1 85,868,392 54,297,950 2 1,328,633 10,158,295 5 ,452,805 6 ,039,564 6 ,128,766 1 4,676,033 5 32,483,566 493,597,595 (3) - - - - - - - - - 66,223,843 70,661,924 Financial Guarantees Provided Total with Financial Guarantees Provided 228,533,128 1 85,868,392 5 4,297,950 21,328,633 10,158,295 5 ,452,805 6 ,039,564 6,128,766 14,676,033 5 98,707,409 5 64,259,519 Total – 12/31/2017 2 12,093,918 1 73,646,014 4 2,848,737 1 9,648,177 10,798,550 7 ,016,025 7,164,796 6 ,117,644 1 4,263,734 493,597,595 (1) Includes Advances on exchange contracts and Income receivable from advances granted, reclassified from Liabilities – Foreign exchange portfolio / Other receivables (Note 2a); (2) Includes Securities and credits receivable, Debtors for purchase of assets and Financial Guarantees Provided; (3) Recorded in Memorandum Accounts. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.28 Note 6 - Loan, lease and other credit operations a) Composition of the portfolio with credit granting characteristics I – By type of operations and risk level 12/31/2018 12/31/2017 Risk levels AA A B C D E F G H Total Total Loan operations 224,121,979 1 08,717,199 4 9,491,397 18,295,963 8 ,801,536 4 ,742,726 4 ,255,670 5 ,568,357 11,132,605 4 35,127,432 4 07,642,734 Loans and discounted trade receivables 9 3,068,015 88,539,328 3 6,647,432 1 5,120,818 7 ,483,218 3 ,573,051 3,025,695 3 ,526,229 9 ,184,723 2 60,168,509 2 42,986,501 Financing 5 6,784,075 1 3,372,767 1 0,322,388 2,111,362 728,766 823,252 5 64,987 1 ,745,227 1,194,759 8 7,647,583 8 0,855,445 Farming and agribusiness financing 7 ,461,534 8 62,905 4 32,869 71,057 7 9,980 5 4,080 490 1,163 25,402 8 ,989,480 8,710,216 Real estate financing 66,808,355 5,942,199 2 ,088,708 992,726 5 09,572 292,343 664,498 295,738 7 27,721 7 8,321,860 7 5,090,572 Lease operations 1,627,447 4 ,068,573 1,116,042 2 91,831 114,802 4 9,040 1 36,356 36,550 1 11,878 7,552,519 7,725,869 Credit card operations 2 86,979 7 1,984,550 3 ,210,021 2 ,624,404 1 ,155,578 6 51,936 6 23,505 502,367 3 ,145,185 8 4,184,525 72,851,205 (1) Advance on exchange contracts 2,489,773 625,940 480,243 84,089 84,891 8 ,972 33,168 1 6,119 32,493 3,855,688 4 ,181,813 (2) Other sundry receivables 6 ,950 472,130 247 32,346 1,488 131 990,865 5,373 253,872 1,763,402 1 ,195,974 Total operations with credit granting characteristics 228,533,128 1 85,868,392 54,297,950 2 1,328,633 10,158,295 5 ,452,805 6 ,039,564 6 ,128,766 1 4,676,033 5 32,483,566 493,597,595 (3) - - - - - - - - - 66,223,843 70,661,924 Financial Guarantees Provided Total with Financial Guarantees Provided 228,533,128 1 85,868,392 5 4,297,950 21,328,633 10,158,295 5 ,452,805 6 ,039,564 6,128,766 14,676,033 5 98,707,409 5 64,259,519 Total – 12/31/2017 2 12,093,918 1 73,646,014 4 2,848,737 1 9,648,177 10,798,550 7 ,016,025 7,164,796 6 ,117,644 1 4,263,734 493,597,595 (1) Includes Advances on exchange contracts and Income receivable from advances granted, reclassified from Liabilities – Foreign exchange portfolio / Other receivables (Note 2a); (2) Includes Securities and credits receivable, Debtors for purchase of assets and Financial Guarantees Provided; (3) Recorded in Memorandum Accounts. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.28

II – By maturity and risk level 12/31/2018 12/31/2017 AA A B C D E F G H Total Total (1) (2) Overdue Operations Falling due installments - - 1,763,849 1 ,653,618 1,330,256 1,017,472 1,427,989 1,470,430 3,619,416 12,283,030 12,918,075 01 to 30 - - 57,478 67,884 5 5,151 4 4,998 42,804 1 70,421 1 73,255 611,991 466,490 31 to 60 - - 50,566 61,371 48,988 38,706 37,734 4 4,744 152,157 434,266 4 22,061 61 to 90 - - 4 5,178 5 2,973 4 4,009 3 4,446 32,436 3 1,105 132,907 3 73,054 417,285 91 to 180 - - 1 27,491 150,501 1 26,489 96,268 101,306 102,822 395,292 1,100,169 1 ,123,273 181 to 365 - - 2 45,641 246,796 219,898 176,656 1 86,770 185,652 709,677 1 ,971,090 2,138,790 Over 365 - - 1,237,495 1,074,093 8 35,721 6 26,398 1 ,026,939 935,686 2,056,128 7,792,460 8,350,176 Overdue installments - - 783,151 1 ,018,016 1 ,061,561 9 81,605 1,111,193 1 ,215,382 7,199,229 13,370,137 1 3,670,354 01 to 14 - - 8 ,398 3 6,956 27,211 2 1,954 20,524 1 8,433 125,931 2 59,407 2 89,657 15 to 30 - - 5 44,692 9 4,580 9 2,997 71,715 4 8,243 45,007 1 51,877 1 ,049,111 1,306,511 31 to 60 - - 230,061 738,957 168,862 1 14,843 1 17,172 90,854 5 10,922 1 ,971,671 2 ,342,149 61 to 90 - - - 115,995 661,879 142,779 162,394 119,408 848,873 2 ,051,328 2 ,097,179 91 to 180 - - - 3 1,528 1 10,612 579,130 7 20,401 853,573 1 ,082,750 3 ,377,994 3,272,856 181 to 365 - - - - - 5 1,184 42,459 8 8,107 4,079,060 4,260,810 4,181,837 Over 365 - - - - - - - - 399,816 399,816 180,165 Subtotal (a) - - 2 ,547,000 2 ,671,634 2,391,817 1,999,077 2 ,539,182 2,685,812 10,818,645 2 5,653,167 2 6,588,429 Specific allowance (b) - - (25,470) (80,149) (239,182) ( 599,723) ( 1,269,591) (1,880,068) ( 10,818,645) (14,912,828) (14,747,910) Subtotal - 12/31/2017 - - 2 ,934,155 2,802,406 2 ,406,460 2,260,828 3 ,457,195 2,467,937 1 0,259,448 26,588,429 Non-overdue operations Falling due installments 2 27,629,961 184,438,235 51,206,193 1 8,471,401 7 ,635,460 3,404,214 3 ,430,880 3 ,421,412 3,749,322 503,387,078 463,057,416 01 to 30 17,364,506 4 1,577,971 8 ,597,001 3,264,549 1 ,106,487 328,926 302,208 262,166 461,886 7 3,265,700 6 7,223,622 31 to 60 19,108,090 1 9,524,197 3 ,548,865 1 ,217,942 606,224 1 67,771 1 17,236 2 12,155 241,054 4 4,743,534 37,244,318 61 to 90 9 ,345,111 12,019,515 2 ,339,765 773,385 318,722 1 12,944 1 08,218 46,348 159,550 25,223,558 21,625,598 91 to 180 25,420,746 24,806,779 6,009,637 2 ,052,223 6 23,420 358,280 2 39,334 354,802 5 88,339 6 0,453,560 51,682,524 181 to 365 2 6,133,369 25,033,883 7,479,285 2,734,450 976,660 421,230 441,991 3 68,710 521,914 64,111,492 61,139,844 Over 365 130,258,139 61,475,890 23,231,640 8,428,852 4 ,003,947 2,015,063 2 ,221,893 2,177,231 1,776,579 2 35,589,234 224,141,510 Overdue up to 14 days 903,167 1,430,157 5 44,757 1 85,598 131,018 4 9,514 69,502 21,542 1 08,066 3 ,443,321 3,951,750 Subtotal (c) 2 28,533,128 185,868,392 5 1,750,950 1 8,656,999 7 ,766,478 3,453,728 3,500,382 3 ,442,954 3 ,857,388 506,830,399 4 67,009,166 Generic allowance (d) - ( 929,342) (517,510) (559,710) ( 776,648) (1,036,118) ( 1,750,191) (2,410,068) ( 3,857,388) (11,836,975) (12,451,399) Subtotal - 12/31/2017 2 12,093,918 1 73,646,014 3 9,914,582 16,845,771 8 ,392,090 4 ,755,197 3 ,707,601 3,649,707 4,004,286 4 67,009,166 Portfolio total (a + c) 2 28,533,128 1 85,868,392 54,297,950 21,328,633 1 0,158,295 5 ,452,805 6,039,564 6,128,766 1 4,676,033 532,483,566 4 93,597,595 Existing allowance - ( 929,342) ( 542,980) ( 639,859) (1,015,830) ( 3,153,781) (6,038,961) ( 6,128,153) (14,676,033) (34,260,632) ( 37,309,465) Minimum required (b + d) - (929,342) (542,980) ( 639,859) (1,015,830) (1,635,842) (3,019,782) ( 4,290,136) (14,676,033) ( 26,749,803) ( 27,199,309) Additional - - - - - ( 1,517,939) ( 3,019,179) (1,838,017) - ( 7,510,829) (10,110,156) (3) Financial Guarantees - - - - - - - - - ( 1,135,694) ( 1,949,644) (4) Additional - - - - - (1,517,939) (3,019,179) (1,838,017) - (6,375,135) ( 8,160,512) Portfolio total at 12/31/2017 2 12,093,918 1 73,646,014 42,848,737 1 9,648,177 1 0,798,550 7 ,016,025 7,164,796 6 ,117,644 14,263,734 493,597,595 Existing allowance at 12/31/2017 - (868,230) (428,488) (589,445) ( 1,079,855) (4,848,956) (7,164,080) ( 6,117,033) ( 14,263,734) (37,309,465) Minimum required - (868,230) (428,488) (589,445) (1,079,855) ( 2,104,808) ( 3,582,398) (4,282,351) (14,263,734) (27,199,309) Additional - - - - - ( 2,744,148) (3,581,682) (1,834,682) - ( 10,110,156) (3) Financial Guarantees - - - - - - - - - ( 1,949,644) (4) Additional - - - - - (2,744,148) ( 3,581,682) ( 1,834,682) - (8,160,512) (1) Operations with overdue installments for more than 14 days or under control of administrators or in companies in the process of declaring bankruptcy; (2) The balance of non-accrual operations amounts to R$ 19,184,803 (R$ 19,104,845 at 12/31/2017); (3) Provision for financial guarantees provided, recorded in Other liabilities - Sundry, in the Consolidated Balance Sheet; (4) Related to expected and potential loss. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.29 II – By maturity and risk level 12/31/2018 12/31/2017 AA A B C D E F G H Total Total (1) (2) Overdue Operations Falling due installments - - 1,763,849 1 ,653,618 1,330,256 1,017,472 1,427,989 1,470,430 3,619,416 12,283,030 12,918,075 01 to 30 - - 57,478 67,884 5 5,151 4 4,998 42,804 1 70,421 1 73,255 611,991 466,490 31 to 60 - - 50,566 61,371 48,988 38,706 37,734 4 4,744 152,157 434,266 4 22,061 61 to 90 - - 4 5,178 5 2,973 4 4,009 3 4,446 32,436 3 1,105 132,907 3 73,054 417,285 91 to 180 - - 1 27,491 150,501 1 26,489 96,268 101,306 102,822 395,292 1,100,169 1 ,123,273 181 to 365 - - 2 45,641 246,796 219,898 176,656 1 86,770 185,652 709,677 1 ,971,090 2,138,790 Over 365 - - 1,237,495 1,074,093 8 35,721 6 26,398 1 ,026,939 935,686 2,056,128 7,792,460 8,350,176 Overdue installments - - 783,151 1 ,018,016 1 ,061,561 9 81,605 1,111,193 1 ,215,382 7,199,229 13,370,137 1 3,670,354 01 to 14 - - 8 ,398 3 6,956 27,211 2 1,954 20,524 1 8,433 125,931 2 59,407 2 89,657 15 to 30 - - 5 44,692 9 4,580 9 2,997 71,715 4 8,243 45,007 1 51,877 1 ,049,111 1,306,511 31 to 60 - - 230,061 738,957 168,862 1 14,843 1 17,172 90,854 5 10,922 1 ,971,671 2 ,342,149 61 to 90 - - - 115,995 661,879 142,779 162,394 119,408 848,873 2 ,051,328 2 ,097,179 91 to 180 - - - 3 1,528 1 10,612 579,130 7 20,401 853,573 1 ,082,750 3 ,377,994 3,272,856 181 to 365 - - - - - 5 1,184 42,459 8 8,107 4,079,060 4,260,810 4,181,837 Over 365 - - - - - - - - 399,816 399,816 180,165 Subtotal (a) - - 2 ,547,000 2 ,671,634 2,391,817 1,999,077 2 ,539,182 2,685,812 10,818,645 2 5,653,167 2 6,588,429 Specific allowance (b) - - (25,470) (80,149) (239,182) ( 599,723) ( 1,269,591) (1,880,068) ( 10,818,645) (14,912,828) (14,747,910) Subtotal - 12/31/2017 - - 2 ,934,155 2,802,406 2 ,406,460 2,260,828 3 ,457,195 2,467,937 1 0,259,448 26,588,429 Non-overdue operations Falling due installments 2 27,629,961 184,438,235 51,206,193 1 8,471,401 7 ,635,460 3,404,214 3 ,430,880 3 ,421,412 3,749,322 503,387,078 463,057,416 01 to 30 17,364,506 4 1,577,971 8 ,597,001 3,264,549 1 ,106,487 328,926 302,208 262,166 461,886 7 3,265,700 6 7,223,622 31 to 60 19,108,090 1 9,524,197 3 ,548,865 1 ,217,942 606,224 1 67,771 1 17,236 2 12,155 241,054 4 4,743,534 37,244,318 61 to 90 9 ,345,111 12,019,515 2 ,339,765 773,385 318,722 1 12,944 1 08,218 46,348 159,550 25,223,558 21,625,598 91 to 180 25,420,746 24,806,779 6,009,637 2 ,052,223 6 23,420 358,280 2 39,334 354,802 5 88,339 6 0,453,560 51,682,524 181 to 365 2 6,133,369 25,033,883 7,479,285 2,734,450 976,660 421,230 441,991 3 68,710 521,914 64,111,492 61,139,844 Over 365 130,258,139 61,475,890 23,231,640 8,428,852 4 ,003,947 2,015,063 2 ,221,893 2,177,231 1,776,579 2 35,589,234 224,141,510 Overdue up to 14 days 903,167 1,430,157 5 44,757 1 85,598 131,018 4 9,514 69,502 21,542 1 08,066 3 ,443,321 3,951,750 Subtotal (c) 2 28,533,128 185,868,392 5 1,750,950 1 8,656,999 7 ,766,478 3,453,728 3,500,382 3 ,442,954 3 ,857,388 506,830,399 4 67,009,166 Generic allowance (d) - ( 929,342) (517,510) (559,710) ( 776,648) (1,036,118) ( 1,750,191) (2,410,068) ( 3,857,388) (11,836,975) (12,451,399) Subtotal - 12/31/2017 2 12,093,918 1 73,646,014 3 9,914,582 16,845,771 8 ,392,090 4 ,755,197 3 ,707,601 3,649,707 4,004,286 4 67,009,166 Portfolio total (a + c) 2 28,533,128 1 85,868,392 54,297,950 21,328,633 1 0,158,295 5 ,452,805 6,039,564 6,128,766 1 4,676,033 532,483,566 4 93,597,595 Existing allowance - ( 929,342) ( 542,980) ( 639,859) (1,015,830) ( 3,153,781) (6,038,961) ( 6,128,153) (14,676,033) (34,260,632) ( 37,309,465) Minimum required (b + d) - (929,342) (542,980) ( 639,859) (1,015,830) (1,635,842) (3,019,782) ( 4,290,136) (14,676,033) ( 26,749,803) ( 27,199,309) Additional - - - - - ( 1,517,939) ( 3,019,179) (1,838,017) - ( 7,510,829) (10,110,156) (3) Financial Guarantees - - - - - - - - - ( 1,135,694) ( 1,949,644) (4) Additional - - - - - (1,517,939) (3,019,179) (1,838,017) - (6,375,135) ( 8,160,512) Portfolio total at 12/31/2017 2 12,093,918 1 73,646,014 42,848,737 1 9,648,177 1 0,798,550 7 ,016,025 7,164,796 6 ,117,644 14,263,734 493,597,595 Existing allowance at 12/31/2017 - (868,230) (428,488) (589,445) ( 1,079,855) (4,848,956) (7,164,080) ( 6,117,033) ( 14,263,734) (37,309,465) Minimum required - (868,230) (428,488) (589,445) (1,079,855) ( 2,104,808) ( 3,582,398) (4,282,351) (14,263,734) (27,199,309) Additional - - - - - ( 2,744,148) (3,581,682) (1,834,682) - ( 10,110,156) (3) Financial Guarantees - - - - - - - - - ( 1,949,644) (4) Additional - - - - - (2,744,148) ( 3,581,682) ( 1,834,682) - (8,160,512) (1) Operations with overdue installments for more than 14 days or under control of administrators or in companies in the process of declaring bankruptcy; (2) The balance of non-accrual operations amounts to R$ 19,184,803 (R$ 19,104,845 at 12/31/2017); (3) Provision for financial guarantees provided, recorded in Other liabilities - Sundry, in the Consolidated Balance Sheet; (4) Related to expected and potential loss. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.29

III – By business sector 12/31/2018 % 12/31/2017 % Public Sector 2,510,631 0.5% 2,366,262 0.5% Private sector 529,972,935 99.5% 491,231,333 99.5% Companies 260,340,145 48.9% 247,102,807 50.0% Individuals 269,632,790 50.6% 244,128,526 49.5% Grand total 532,483,566 100.0% 493,597,595 100.0% IV - Financial guarantees provided by type 12/31/2018 12/31/2017 Type of guarantees Portfolio Provision Portfolio Provision Endorsements or sureties pledged in legal and administrative tax proceedings 33,898,145 (453,250) 36,157,228 (901,225) Sundry bank guarantees 20,602,855 (5 38,071) 24,872,713 (855,078) Other financial guarantees provided 6,850,411 (89,838) 4,647,823 (123,071) Tied to the distribution of marketable securities via a Public Offering 40,000 (5 3) 291,600 (52) Restricted to bids, auctions, service provision or execution of works 3,175,398 (1 5,744) 3,931,528 (63,613) Restricted to international trade of goods 1,148,559 (32,182) 613,924 (5,773) Restricted to supply of goods 508,475 (6 ,556) 147,108 (832) Total 66,223,843 (1,135,694) 70,661,924 (1,949,644) b) Credit concentration 12/31/2018 12/31/2017 (*) Loan, lease and other credit operations % of % of Risk Risk total total Largest debtor 5,192,544 0.9 4,079,032 0.7 10 largest debtors 31,564,115 5.3 28,957,637 5.1 20 largest debtors 47,429,746 7.9 46,312,823 8.2 50 largest debtors 73,355,064 12.3 74,764,354 13.3 100 largest debtors 98,671,905 16.5 101,141,728 17.9 (*) The amounts include financial guarantees provided. 12/31/2018 12/31/2017 Loan, lease and other credit operations and securities of (*) companies and financial institutions % of % of Risk Risk total total Largest debtor 7,675,413 1.1 7,667,580 1.2 10 largest debtors 43,959,326 6.4 39,982,381 6.2 20 largest debtors 68,262,446 10.0 64,826,981 10.1 50 largest debtors 108,644,813 15.9 108,820,520 16.9 100 largest debtors 143,268,771 21.0 144,293,248 22.4 (*) The amounts include financial guarantees provided. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.30 III – By business sector 12/31/2018 % 12/31/2017 % Public Sector 2,510,631 0.5% 2,366,262 0.5% Private sector 529,972,935 99.5% 491,231,333 99.5% Companies 260,340,145 48.9% 247,102,807 50.0% Individuals 269,632,790 50.6% 244,128,526 49.5% Grand total 532,483,566 100.0% 493,597,595 100.0% IV - Financial guarantees provided by type 12/31/2018 12/31/2017 Type of guarantees Portfolio Provision Portfolio Provision Endorsements or sureties pledged in legal and administrative tax proceedings 33,898,145 (453,250) 36,157,228 (901,225) Sundry bank guarantees 20,602,855 (5 38,071) 24,872,713 (855,078) Other financial guarantees provided 6,850,411 (89,838) 4,647,823 (123,071) Tied to the distribution of marketable securities via a Public Offering 40,000 (5 3) 291,600 (52) Restricted to bids, auctions, service provision or execution of works 3,175,398 (1 5,744) 3,931,528 (63,613) Restricted to international trade of goods 1,148,559 (32,182) 613,924 (5,773) Restricted to supply of goods 508,475 (6 ,556) 147,108 (832) Total 66,223,843 (1,135,694) 70,661,924 (1,949,644) b) Credit concentration 12/31/2018 12/31/2017 (*) Loan, lease and other credit operations % of % of Risk Risk total total Largest debtor 5,192,544 0.9 4,079,032 0.7 10 largest debtors 31,564,115 5.3 28,957,637 5.1 20 largest debtors 47,429,746 7.9 46,312,823 8.2 50 largest debtors 73,355,064 12.3 74,764,354 13.3 100 largest debtors 98,671,905 16.5 101,141,728 17.9 (*) The amounts include financial guarantees provided. 12/31/2018 12/31/2017 Loan, lease and other credit operations and securities of (*) companies and financial institutions % of % of Risk Risk total total Largest debtor 7,675,413 1.1 7,667,580 1.2 10 largest debtors 43,959,326 6.4 39,982,381 6.2 20 largest debtors 68,262,446 10.0 64,826,981 10.1 50 largest debtors 108,644,813 15.9 108,820,520 16.9 100 largest debtors 143,268,771 21.0 144,293,248 22.4 (*) The amounts include financial guarantees provided. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.30

c) Changes in allowance for loan losses 01/01 to 01/01 to 12/31/2018 12/31/2017 Opening balance (37,309,465) (37,431,102) Adjustments arising from the first-time adoption of Resolution nº. 4,512/16. - (401,640) Balance arising from the acquisition of Citibank operations - (665,725) Net increase for the period (14,501,245) (18,749,556) (17,100,572) (19,480,689) Required by Resolution nº. 2,682/99 Required by Resolution nº. 4,512/16 813,950 (102,559) Additional allowance 1,785,377 833,692 Others - 6,707 Write-Off 17,977,470 19,957,074 Exchange variation (427,392) (25,223) (1) Closing balance (34,260,632) (37,309,465) (26,749,803) (27,199,309) Required by Resolution nº. 2,682/99 (2) Specific (14,912,828) (14,747,910) (3) Generic (11,836,975) (12,451,399) Additional allowance (7,510,829) (10,110,156) (4) For Financial Guarantees Provided required by Resolution nº. 4,512/16 (1,135,694) (1,949,644) (6,375,135) (8,160,512) Additional (1) The allowance for loan losses related to the lease portfolio amounts to: R$ (272,083) (R$ (378,974) at 12/31/2017); (2) Operations with overdue installments for more than 14 days or under responsibility of administrators or companies in the process of declaring bankruptcy; (3) For operations not covered in the previous item due to the classification of the client or operation; (4) Provision for financial guarantees provided, recorded in Other liabilities - Sundry, in the Consolidated Balance Sheet. At 12/31/2018, the balance of the allowance in relation to the loan portfolio is equivalent to 6.4% (7.6% at 12/31/2017). d) Renegotiated loan operations 12/31/2018 12/31/2017 Allowance for Allowance for (1) (1) % % Portfolio Portfolio Loan Losses Loan Losses Amended Credit Agreements 2 7,325,739 (11,319,920) 41.4% 26,401,485 (1 0,807,411) 40.9% (2) (10,672,733) 2,704,840 25.3% (9,147,755) 2 ,122,979 23.2% (-) Renegotiated loans overdue up to 30 days (2) 16,653,006 (8,615,080) 51.7% 17,253,730 (8,684,432) 50.3% Renegotiated loans overdue over 30 days (1) The amounts related the Lease Portfolio are: R$ 112,194 (R$ 126,819 at 12/31/2017); (2) Delays determined upon renegotiation. e) Restricted operations on assets See below the information related to the restricted operations on assets, in accordance with CMN Resolution No. 2,921, of January 17, 2002. 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Over 365 Income Income 0 - 30 31 - 180 Total Total days (expenses) (expenses) Restricted operations on assets Loan operations 69,426 1,259,097 8,402,632 9,731,155 6,127,671 1,216,915 258,431 Liabilities - restricted operations on assets 54,066 86,325 9,603,576 9,743,967 6,075,346 (1,220,730) (258,451) Foreign borrowing through securities (3,815) (20) Net revenue from restricted operations At 12/31/2018 and 12/31/2017 there were no balances in default. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.31 c) Changes in allowance for loan losses 01/01 to 01/01 to 12/31/2018 12/31/2017 Opening balance (37,309,465) (37,431,102) Adjustments arising from the first-time adoption of Resolution nº. 4,512/16. - (401,640) Balance arising from the acquisition of Citibank operations - (665,725) Net increase for the period (14,501,245) (18,749,556) (17,100,572) (19,480,689) Required by Resolution nº. 2,682/99 Required by Resolution nº. 4,512/16 813,950 (102,559) Additional allowance 1,785,377 833,692 Others - 6,707 Write-Off 17,977,470 19,957,074 Exchange variation (427,392) (25,223) (1) Closing balance (34,260,632) (37,309,465) (26,749,803) (27,199,309) Required by Resolution nº. 2,682/99 (2) Specific (14,912,828) (14,747,910) (3) Generic (11,836,975) (12,451,399) Additional allowance (7,510,829) (10,110,156) (4) For Financial Guarantees Provided required by Resolution nº. 4,512/16 (1,135,694) (1,949,644) (6,375,135) (8,160,512) Additional (1) The allowance for loan losses related to the lease portfolio amounts to: R$ (272,083) (R$ (378,974) at 12/31/2017); (2) Operations with overdue installments for more than 14 days or under responsibility of administrators or companies in the process of declaring bankruptcy; (3) For operations not covered in the previous item due to the classification of the client or operation; (4) Provision for financial guarantees provided, recorded in Other liabilities - Sundry, in the Consolidated Balance Sheet. At 12/31/2018, the balance of the allowance in relation to the loan portfolio is equivalent to 6.4% (7.6% at 12/31/2017). d) Renegotiated loan operations 12/31/2018 12/31/2017 Allowance for Allowance for (1) (1) % % Portfolio Portfolio Loan Losses Loan Losses Amended Credit Agreements 2 7,325,739 (11,319,920) 41.4% 26,401,485 (1 0,807,411) 40.9% (2) (10,672,733) 2,704,840 25.3% (9,147,755) 2 ,122,979 23.2% (-) Renegotiated loans overdue up to 30 days (2) 16,653,006 (8,615,080) 51.7% 17,253,730 (8,684,432) 50.3% Renegotiated loans overdue over 30 days (1) The amounts related the Lease Portfolio are: R$ 112,194 (R$ 126,819 at 12/31/2017); (2) Delays determined upon renegotiation. e) Restricted operations on assets See below the information related to the restricted operations on assets, in accordance with CMN Resolution No. 2,921, of January 17, 2002. 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Over 365 Income Income 0 - 30 31 - 180 Total Total days (expenses) (expenses) Restricted operations on assets Loan operations 69,426 1,259,097 8,402,632 9,731,155 6,127,671 1,216,915 258,431 Liabilities - restricted operations on assets 54,066 86,325 9,603,576 9,743,967 6,075,346 (1,220,730) (258,451) Foreign borrowing through securities (3,815) (20) Net revenue from restricted operations At 12/31/2018 and 12/31/2017 there were no balances in default. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.31

f) Operations of sale or transfers and acquisitions of financial assets ITAÚ UNIBANCO HOLDING PRUDENTIAL carried out operations of sale or transfer of financial assets in which there was retention of credit risks of financial assets transferred through co-obligation covenants. Thus, such credits continued recorded in the Consolidated Balance Sheet and are represented as follows: 12/31/2018 12/31/2017 (1) (1) Assets Assets Liabilities Liabilities Nature of operation Book value Fair value Book value Fair value Book value Fair value Book value Fair value Mortgage Loan 1,863,170 1,842,268 1,861,300 1,840,398 2,362,540 2,303,414 2,354,221 2,295,095 Working capital 2,139,753 2,139,753 2,128,077 2,128,077 2,650,606 2,650,606 2,570,017 2,570,017 (2) Other - - 3,718 3,718 - - 6,477 6,477 Total 4,002,923 3,982,021 3,993,095 3,972,193 5,013,146 4,954,020 4,930,715 4,871,589 (1) Under Other sundry liabilities. (2) Assignment of operations that had already been written down to losses. Operations of transfers of financial assets with no retention of risks and benefits generated impact on the result of R$ 372,209 in the period from January 1 to December 31, 2018 (R$ 392,851 from January 1 to December 31, 2017), net of the Allowance for Loan Losses. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.32 f) Operations of sale or transfers and acquisitions of financial assets ITAÚ UNIBANCO HOLDING PRUDENTIAL carried out operations of sale or transfer of financial assets in which there was retention of credit risks of financial assets transferred through co-obligation covenants. Thus, such credits continued recorded in the Consolidated Balance Sheet and are represented as follows: 12/31/2018 12/31/2017 (1) (1) Assets Assets Liabilities Liabilities Nature of operation Book value Fair value Book value Fair value Book value Fair value Book value Fair value Mortgage Loan 1,863,170 1,842,268 1,861,300 1,840,398 2,362,540 2,303,414 2,354,221 2,295,095 Working capital 2,139,753 2,139,753 2,128,077 2,128,077 2,650,606 2,650,606 2,570,017 2,570,017 (2) Other - - 3,718 3,718 - - 6,477 6,477 Total 4,002,923 3,982,021 3,993,095 3,972,193 5,013,146 4,954,020 4,930,715 4,871,589 (1) Under Other sundry liabilities. (2) Assignment of operations that had already been written down to losses. Operations of transfers of financial assets with no retention of risks and benefits generated impact on the result of R$ 372,209 in the period from January 1 to December 31, 2018 (R$ 392,851 from January 1 to December 31, 2017), net of the Allowance for Loan Losses. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.32

Note 7 – Funding, borrowing and onlending a) Summary 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Deposits 249,586,984 37,542,095 22,823,791 161,688,108 471,640,978 405,858,963 Deposits received under securities repurchase agreements 267,052,713 9,712,898 7,755,536 59,102,276 343,623,423 325,798,899 Funds from acceptance and issuance of securities 2,283,036 18,713,095 12,409,721 78,160,070 111,565,922 107,581,024 Borrowing and onlending 5,461,676 18,481,012 24,034,459 19,970,018 67,947,165 63,441,020 Subordinated debt 2,095 317,874 23,205 48,969,550 49,312,724 52,695,875 Total 524,386,504 84,766,974 67,046,712 367,890,022 1,044,090,212 955,375,781 % per maturity term 50.2 8.1 6.5 35.2 100.0 Total – 12/31/2017 449,920,249 102,080,562 76,510,020 326,864,950 955,375,781 % per maturity term 47.1 10.7 8.0 34.2 100.0 b) Deposits 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Interest-bearing deposits 176,538,494 37,542,095 22,823,791 161,688,108 398,592,488 336,490,167 Time deposits 37,949,806 36,896,641 22,680,638 161,482,281 259,009,366 214,303,912 Interbanks 136,908,595 - - - 136,908,595 120,004,481 Savings accounts 1,680,093 645,454 143,153 205,827 2,674,527 2,181,774 Non-interest bearing deposits 73,048,490 - - - 73,048,490 69,368,796 Demand deposits 73,045,763 - - - 73,045,763 69,366,205 Other deposits 2,727 - - - 2,727 2,591 Total 249,586,984 37,542,095 22,823,791 161,688,108 471,640,978 405,858,963 % per maturity term 52.9 8.0 4.8 34.3 100.0 217,388,961 34,639,386 23,244,055 130,586,561 405,858,963 Total – 12/31/2017 % per maturity term 53.6 8.5 5.7 32.2 100.0 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.33 Note 7 – Funding, borrowing and onlending a) Summary 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Deposits 249,586,984 37,542,095 22,823,791 161,688,108 471,640,978 405,858,963 Deposits received under securities repurchase agreements 267,052,713 9,712,898 7,755,536 59,102,276 343,623,423 325,798,899 Funds from acceptance and issuance of securities 2,283,036 18,713,095 12,409,721 78,160,070 111,565,922 107,581,024 Borrowing and onlending 5,461,676 18,481,012 24,034,459 19,970,018 67,947,165 63,441,020 Subordinated debt 2,095 317,874 23,205 48,969,550 49,312,724 52,695,875 Total 524,386,504 84,766,974 67,046,712 367,890,022 1,044,090,212 955,375,781 % per maturity term 50.2 8.1 6.5 35.2 100.0 Total – 12/31/2017 449,920,249 102,080,562 76,510,020 326,864,950 955,375,781 % per maturity term 47.1 10.7 8.0 34.2 100.0 b) Deposits 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Interest-bearing deposits 176,538,494 37,542,095 22,823,791 161,688,108 398,592,488 336,490,167 Time deposits 37,949,806 36,896,641 22,680,638 161,482,281 259,009,366 214,303,912 Interbanks 136,908,595 - - - 136,908,595 120,004,481 Savings accounts 1,680,093 645,454 143,153 205,827 2,674,527 2,181,774 Non-interest bearing deposits 73,048,490 - - - 73,048,490 69,368,796 Demand deposits 73,045,763 - - - 73,045,763 69,366,205 Other deposits 2,727 - - - 2,727 2,591 Total 249,586,984 37,542,095 22,823,791 161,688,108 471,640,978 405,858,963 % per maturity term 52.9 8.0 4.8 34.3 100.0 217,388,961 34,639,386 23,244,055 130,586,561 405,858,963 Total – 12/31/2017 % per maturity term 53.6 8.5 5.7 32.2 100.0 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.33

c) Deposits received under securities repurchase agreements 12/31/2018 12/31/2017 0 - 30 31 - 180 181 - 365 Over 365 days Total Total Own portfolio 61,869,626 8,277,484 5,343,070 6,805,939 82,296,119 111,270,635 50,933,652 - - 4,441 50,938,093 43,619,045 Government securities Corporate Securities 9,050,801 - - - 9,050,801 6,564,059 Own issue 1,831,272 8,180,139 5,144,551 6,646,670 21,802,632 60,694,143 Foreign 53,901 97,345 198,519 154,828 504,593 393,388 Third-party portfolio 181,694,343 - - - 181,694,343 158,000,043 23,488,744 1,435,414 2,412,466 52,296,337 79,632,961 56,528,221 Free portfolio 267,052,713 9,712,898 7,755,536 59,102,276 343,623,423 325,798,899 Total % per maturity term 77.7 2.8 2.3 17.2 Total – 12/31/2017 219,592,385 16,826,525 17,174,540 72,205,449 325,798,899 % per maturity term 67.3 5.2 5.3 22.2 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.34 c) Deposits received under securities repurchase agreements 12/31/2018 12/31/2017 0 - 30 31 - 180 181 - 365 Over 365 days Total Total Own portfolio 61,869,626 8,277,484 5,343,070 6,805,939 82,296,119 111,270,635 50,933,652 - - 4,441 50,938,093 43,619,045 Government securities Corporate Securities 9,050,801 - - - 9,050,801 6,564,059 Own issue 1,831,272 8,180,139 5,144,551 6,646,670 21,802,632 60,694,143 Foreign 53,901 97,345 198,519 154,828 504,593 393,388 Third-party portfolio 181,694,343 - - - 181,694,343 158,000,043 23,488,744 1,435,414 2,412,466 52,296,337 79,632,961 56,528,221 Free portfolio 267,052,713 9,712,898 7,755,536 59,102,276 343,623,423 325,798,899 Total % per maturity term 77.7 2.8 2.3 17.2 Total – 12/31/2017 219,592,385 16,826,525 17,174,540 72,205,449 325,798,899 % per maturity term 67.3 5.2 5.3 22.2 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.34

d) Funds from acceptance and issuance of securities 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Real estate, mortgage, credit and similar notes 1,966,705 15,388,302 7,834,422 41,524,348 66,713,777 61,316,629 Financial bills 2 41,492 5,052,676 3,844,174 28,788,960 37,927,302 27,691,724 Real state credit bills 5 38,691 5,761,077 1 65,480 3,081,241 9 ,546,489 1 8,524,790 Agribusiness credit bills 1 ,186,522 4 ,574,549 3,824,768 8 ,427,251 18,013,090 1 5,100,115 Guaranteed real state notes - - - 1,226,896 1 ,226,896 - Foreign securities 292,325 1,438,874 4,535,736 35,786,905 42,053,840 41,877,119 Brazil risk note programme - 2 77,791 234,886 3,333,516 3 ,846,193 5 ,956,513 Structure note issued 3 6,956 625,913 9 87,891 3 ,431,162 5,081,922 5 ,673,094 Bonds 1 77,553 517,328 3,091,646 2 1,429,526 2 5,216,053 24,581,832 Fixed rate notes - - - 4,985,374 4,985,374 3,119,319 Eurobonds 1 9,346 - 103 1 1,439 30,888 9 ,819 Mortgage notes 13,034 15,004 27,488 228,851 284,377 346,213 Other 45,436 2,838 1 93,722 2 ,367,037 2 ,609,033 2,190,329 (*) 24,006 1 ,885,919 39,563 848,817 2 ,798,305 4,387,276 Structured Operations Certificates Total 2 ,283,036 1 8,713,095 1 2,409,721 78,160,070 1 11,565,922 1 07,581,024 % per maturity term 2.0 16.8 11.1 70.1 100.0 Total – 12/31/2017 6,819,995 23,229,503 18,387,515 59,144,011 1 07,581,024 % per maturity term 6.3 21.6 17.1 55.0 100.0 (*) As of 12/31/2018, the market value of the funding from Structured Operations Certificates issued is R$ 2,902,392 (R$ 4,605,105 at 12/31/2017). Guaranteed Real Estate Notes Guaranteed Real Estate Notes (LIGs) are registered credit securities, transferrable and free trade, guaranteed by asset portfolio of the issuer itself, submitted to the fiduciary system. The “Instrument of LIG Issue”, which details the conditions of LIG transactions, is available on the website www.itau.com.br/relacoes-com- investidores, section Menu / Relatórios / Letra Imobiliária Garantida (LIG). I – Breakdown of Asset Portfolio The credit portfolio linked to LIGs corresponds to 0.01% of ITAÚ UNIBANCO HOLDING PRUDENTIAL’s total assets. Its composition is presented in the table below. Further details are available in the Statement of Asset Portfolio – SAP, in section Menu / Relatórios / Letra Imobiliária Garantida (LIG). 12/31/2018 Real state loans 1,204,299 Government securities - Brazil 229,471 Total asset portfolio 1,433,770 Liabilities for issue of LIGs 1,226,896 Remuneration of the Fiduciary Agent 128 II - Requirements of asset portfolio 12/31/2018 Breakdown 84.0% Sufficiency Notional amount 116.8% Present value under stress 114.4% Weighted average term Of the asset portfolio 37.4 monthly Of outstandings LIGs 36 monthly Liquidity Net assets 229,471 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.35 d) Funds from acceptance and issuance of securities 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Real estate, mortgage, credit and similar notes 1,966,705 15,388,302 7,834,422 41,524,348 66,713,777 61,316,629 Financial bills 2 41,492 5,052,676 3,844,174 28,788,960 37,927,302 27,691,724 Real state credit bills 5 38,691 5,761,077 1 65,480 3,081,241 9 ,546,489 1 8,524,790 Agribusiness credit bills 1 ,186,522 4 ,574,549 3,824,768 8 ,427,251 18,013,090 1 5,100,115 Guaranteed real state notes - - - 1,226,896 1 ,226,896 - Foreign securities 292,325 1,438,874 4,535,736 35,786,905 42,053,840 41,877,119 Brazil risk note programme - 2 77,791 234,886 3,333,516 3 ,846,193 5 ,956,513 Structure note issued 3 6,956 625,913 9 87,891 3 ,431,162 5,081,922 5 ,673,094 Bonds 1 77,553 517,328 3,091,646 2 1,429,526 2 5,216,053 24,581,832 Fixed rate notes - - - 4,985,374 4,985,374 3,119,319 Eurobonds 1 9,346 - 103 1 1,439 30,888 9 ,819 Mortgage notes 13,034 15,004 27,488 228,851 284,377 346,213 Other 45,436 2,838 1 93,722 2 ,367,037 2 ,609,033 2,190,329 (*) 24,006 1 ,885,919 39,563 848,817 2 ,798,305 4,387,276 Structured Operations Certificates Total 2 ,283,036 1 8,713,095 1 2,409,721 78,160,070 1 11,565,922 1 07,581,024 % per maturity term 2.0 16.8 11.1 70.1 100.0 Total – 12/31/2017 6,819,995 23,229,503 18,387,515 59,144,011 1 07,581,024 % per maturity term 6.3 21.6 17.1 55.0 100.0 (*) As of 12/31/2018, the market value of the funding from Structured Operations Certificates issued is R$ 2,902,392 (R$ 4,605,105 at 12/31/2017). Guaranteed Real Estate Notes Guaranteed Real Estate Notes (LIGs) are registered credit securities, transferrable and free trade, guaranteed by asset portfolio of the issuer itself, submitted to the fiduciary system. The “Instrument of LIG Issue”, which details the conditions of LIG transactions, is available on the website www.itau.com.br/relacoes-com- investidores, section Menu / Relatórios / Letra Imobiliária Garantida (LIG). I – Breakdown of Asset Portfolio The credit portfolio linked to LIGs corresponds to 0.01% of ITAÚ UNIBANCO HOLDING PRUDENTIAL’s total assets. Its composition is presented in the table below. Further details are available in the Statement of Asset Portfolio – SAP, in section Menu / Relatórios / Letra Imobiliária Garantida (LIG). 12/31/2018 Real state loans 1,204,299 Government securities - Brazil 229,471 Total asset portfolio 1,433,770 Liabilities for issue of LIGs 1,226,896 Remuneration of the Fiduciary Agent 128 II - Requirements of asset portfolio 12/31/2018 Breakdown 84.0% Sufficiency Notional amount 116.8% Present value under stress 114.4% Weighted average term Of the asset portfolio 37.4 monthly Of outstandings LIGs 36 monthly Liquidity Net assets 229,471 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.35

e) Borrowing and onlending 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Borrowing 4,917,805 16,392,697 21,365,152 7,364,711 50,040,365 39,259,741 Domestic 2,782,252 1,663 2,783,915 2,266,668 (*) Foreign 2,135,553 16,392,697 21,365,152 7,363,048 47,256,450 36,993,073 Onlending - Domestic – official institutions 543,871 2,088,315 2,669,307 12,605,307 17,906,800 24,181,279 BNDES 231,315 790,338 1,104,340 5,981,082 8,107,075 11,446,518 FINAME 308,841 1,238,393 1,482,974 6,087,579 9,117,787 12,155,272 Other 3,715 59,584 81,993 536,646 681,938 579,489 Total 5,461,676 18,481,012 24,034,459 19,970,018 67,947,165 63,441,020 % per maturity term 8.0 27.2 3 5.4 29.4 1 00.0 Total – 12/31/2017 4,804,260 17,194,632 16,710,333 24,731,795 63,441,020 % per maturity term 7.6 27.1 2 6.3 3 9.0 1 00.0 (*) Foreign borrowing are basically represented by foreign exchange transactions related to export pre-financing and import financing. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.36 e) Borrowing and onlending 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 days Total Total Borrowing 4,917,805 16,392,697 21,365,152 7,364,711 50,040,365 39,259,741 Domestic 2,782,252 1,663 2,783,915 2,266,668 (*) Foreign 2,135,553 16,392,697 21,365,152 7,363,048 47,256,450 36,993,073 Onlending - Domestic – official institutions 543,871 2,088,315 2,669,307 12,605,307 17,906,800 24,181,279 BNDES 231,315 790,338 1,104,340 5,981,082 8,107,075 11,446,518 FINAME 308,841 1,238,393 1,482,974 6,087,579 9,117,787 12,155,272 Other 3,715 59,584 81,993 536,646 681,938 579,489 Total 5,461,676 18,481,012 24,034,459 19,970,018 67,947,165 63,441,020 % per maturity term 8.0 27.2 3 5.4 29.4 1 00.0 Total – 12/31/2017 4,804,260 17,194,632 16,710,333 24,731,795 63,441,020 % per maturity term 7.6 27.1 2 6.3 3 9.0 1 00.0 (*) Foreign borrowing are basically represented by foreign exchange transactions related to export pre-financing and import financing. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.36

f) Subordinated debt, including perpetual ones 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 Total Total Financial treasury bills 2,095 193,903 23,205 4,683,267 days 4,902,470 16,828,658 Euronotes - - - 30,711,083 30,711,083 26,119,121 Bonds - 123,971 - 5,886,849 6,010,820 5,613,791 Debt instruments eligible as capital - - - 7,701,570 7,701,570 4,148,367 (-) Transaction costs incurred (Note 3b) - - - (13,219) (13,219) ( 14,062) Grand total 2,095 317,874 23,205 48,969,550 49,312,724 52,695,875 % per maturity term 0.0 0.7 0.0 99.3 100.0 1,314,648 10,190,516 993,577 40,197,134 52,695,875 Total – 12/31/2017 % per maturity term 2.5 19.3 1.9 76.3 100.0 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.37 f) Subordinated debt, including perpetual ones 12/31/2018 12/31/2017 0-30 31-180 181-365 Over 365 Total Total Financial treasury bills 2,095 193,903 23,205 4,683,267 days 4,902,470 16,828,658 Euronotes - - - 30,711,083 30,711,083 26,119,121 Bonds - 123,971 - 5,886,849 6,010,820 5,613,791 Debt instruments eligible as capital - - - 7,701,570 7,701,570 4,148,367 (-) Transaction costs incurred (Note 3b) - - - (13,219) (13,219) ( 14,062) Grand total 2,095 317,874 23,205 48,969,550 49,312,724 52,695,875 % per maturity term 0.0 0.7 0.0 99.3 100.0 1,314,648 10,190,516 993,577 40,197,134 52,695,875 Total – 12/31/2017 % per maturity term 2.5 19.3 1.9 76.3 100.0 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.37

Description Principal amount Name of security / currency Issue Maturity Return p.a. Account balance (original currency) Subordinated financial bills - BRL 2,000 2011 2019 109% to 109.7% of CDI 4,262 1,000 2012 2019 110% of CDI 2,095 12,000 11.96% 26,223 100,500 IPCA + 4.7% to 6.3% 186,623 1,000 2012 2020 111% of CDI 2,109 20,000 IPCA + 6% to 6.17% 44,471 6,000 2011 2021 109.25% to 110.5% of CDI 13,154 2,306,500 2012 2022 IPCA + 5.15% to 5.83% 4,594,783 20,000 IGPM + 4.63% 28,750 Total 4,902,470 (*) Subordinated euronotes - USD 1,000,000 2010 2020 6.2% 3,919,980 1,000,000 2021 5.75% 3,987,836 750,000 2011 2021 5.75% to 6.2% 2,916,997 550,000 2012 2021 6.2% 2,131,140 2,625,000 2022 5.5% to 5.65% 10,354,357 1,870,000 2023 5.13% 7,270,345 20,000 2017 6.12% 78,210 10,000 2018 6.5% 38,999 Subordinated bonds - CLP Total 30,697,864 11,048,394 2008 2022 7.4% to 7.99% 104,016 32,720,912 2033 3.5% to 4.5% 220,670 110,390,929 2033 4.8% 913,337 98,151,772 2009 2035 4.8% 830,740 2,000 2019 10.8% 2,583 94,500 2019 IPC + 2% 121,387 11,311,860 2010 2032 4.4% 80,482 24,928,312 2035 3.9% 185,181 125,191,110 2036 4.4% 881,154 87,087,720 2038 3.9% 641,783 68,060,124 2040 4.1% 494,124 33,935,580 2042 4.4% 240,928 104,000 2013 2023 IPC + 2% 125,505 146,000 2028 IPC + 2% 176,215 510,107 2014 2024 LIB 678,889 47,307,480 2034 3.8% 313,826 Total 6,010,820 Debt instruments eligible as capital - USD 1,230,000 2017 Perpetual 6.12% 4,818,811 740,000 2018 Perpetual 6.5% 2,882,759 Total 7,701,570 Total 49,312,724 (*) Referential Equity at December 31, 2018 has subordinate debts approved by BACEN prior to CMN Resolution 4,192, of March 1, 2013, in the amount of R$ 35,205,796. Perpetual subordinate notes / Supplementary Capital (AT1), issued on December 12, 2017 and March 19, 2018, were approved by BACEN, increasing by 0.97 p.p. the Tier I Capital index of ITAÚ UNIBANCO HOLDING CONSOLIDATED. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.38 Description Principal amount Name of security / currency Issue Maturity Return p.a. Account balance (original currency) Subordinated financial bills - BRL 2,000 2011 2019 109% to 109.7% of CDI 4,262 1,000 2012 2019 110% of CDI 2,095 12,000 11.96% 26,223 100,500 IPCA + 4.7% to 6.3% 186,623 1,000 2012 2020 111% of CDI 2,109 20,000 IPCA + 6% to 6.17% 44,471 6,000 2011 2021 109.25% to 110.5% of CDI 13,154 2,306,500 2012 2022 IPCA + 5.15% to 5.83% 4,594,783 20,000 IGPM + 4.63% 28,750 Total 4,902,470 (*) Subordinated euronotes - USD 1,000,000 2010 2020 6.2% 3,919,980 1,000,000 2021 5.75% 3,987,836 750,000 2011 2021 5.75% to 6.2% 2,916,997 550,000 2012 2021 6.2% 2,131,140 2,625,000 2022 5.5% to 5.65% 10,354,357 1,870,000 2023 5.13% 7,270,345 20,000 2017 6.12% 78,210 10,000 2018 6.5% 38,999 Subordinated bonds - CLP Total 30,697,864 11,048,394 2008 2022 7.4% to 7.99% 104,016 32,720,912 2033 3.5% to 4.5% 220,670 110,390,929 2033 4.8% 913,337 98,151,772 2009 2035 4.8% 830,740 2,000 2019 10.8% 2,583 94,500 2019 IPC + 2% 121,387 11,311,860 2010 2032 4.4% 80,482 24,928,312 2035 3.9% 185,181 125,191,110 2036 4.4% 881,154 87,087,720 2038 3.9% 641,783 68,060,124 2040 4.1% 494,124 33,935,580 2042 4.4% 240,928 104,000 2013 2023 IPC + 2% 125,505 146,000 2028 IPC + 2% 176,215 510,107 2014 2024 LIB 678,889 47,307,480 2034 3.8% 313,826 Total 6,010,820 Debt instruments eligible as capital - USD 1,230,000 2017 Perpetual 6.12% 4,818,811 740,000 2018 Perpetual 6.5% 2,882,759 Total 7,701,570 Total 49,312,724 (*) Referential Equity at December 31, 2018 has subordinate debts approved by BACEN prior to CMN Resolution 4,192, of March 1, 2013, in the amount of R$ 35,205,796. Perpetual subordinate notes / Supplementary Capital (AT1), issued on December 12, 2017 and March 19, 2018, were approved by BACEN, increasing by 0.97 p.p. the Tier I Capital index of ITAÚ UNIBANCO HOLDING CONSOLIDATED. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.38

Note 8 – Contingent assets and liabilities and legal liabilities – tax and social security ITAÚ UNIBANCO HOLDING PRUDENTIAL, as a result of the ordinary course of its business, may be a party to legal lawsuits of labor, civil and tax nature. The contingencies related to these lawsuits are classified as follows: a) Contingent Assets: There are no contingent assets recorded. b) Provisions and contingencies: The criteria to quantify of provisions for contingencies are adequate in relation to the specific characteristics of civil, labor and tax lawsuits portfolios, as well as other risks, taking into consideration the opinion of its legal advisors, the nature of the lawsuits, the similarity with previous lawsuits and the prevailing previous court decisions. A provision is recognized whenever the loss is classified as probable. Legal liabilities arise from lawsuits filed to discuss the legality and unconstitutionality of the legislation in force, being subject to an accounting provision, regardless of the probability of loss. I- Civil lawsuits: In general, provisions for contingencies arise from claims related to the revision of contracts and compensation for damages and pain and suffering and the lawsuits are classified as follows: Collective lawsuits: Related to claims of a similar nature and with individual amounts that are not considered significant. Provisions are determined on a monthly basis and the expected amount of losses is accrued according to statistical references that take into account the nature of the lawsuit and the characteristics of the court (Small Claims Court or Regular Court). Contingencies and provisions are adjusted to reflect the amounts deposited as guarantee for their execution when realized. Individual lawsuits: Related to claims with unusual characteristics or involving significant amounts. These are periodically calculated based on the calculation of the amount claimed. The amounts considered as probable losses are recorded as provisions. ITAÚ UNIBANCO HOLDING PRUDENTIAL, despite having complied with the rules in force at the time, is a defendant in lawsuits filed by individuals referring to collection of inflation adjustments to savings accounts resulting from economic plants implemented in the decades of 1980 and 1990, as well as in collective lawsuits filed by: (i) consumer protection associations; and (ii) the Public Attorney’s Office, on behalf of the savings accounts holders. ITAÚ UNIBANCO HOLDING PRUDENTIAL recognizes provisions upon receipt of summons, as well as at the time individuals demand the enforcement of the decision rendered by the Judiciary power, using the same criteria adopted to determine provisions for individual lawsuits. The Federal Supreme Court (STF) has issued some decisions favorable to savings account holders, but it has not established its understanding with respect to the constitutionality of the economic plans and their applicability to savings accounts. Currently, the appeals involving these matters are suspended, as determined by the STF, until it pronounces a final decision. In December 2017, through mediation of the Federal Attorney’s Office (AGU) and supervision of the BACEN, savers (represented by two civil associations, FEBRAPO and IDEC) and FEBRABAN entered into an instrument of agreement aiming at resolving lawsuits related to economic plans, and ITAÚ UNIBANCO HOLDING PRUDENTIAL has already adhered to its terms. Said agreement was approved on March 1, 2018, by the Plenary Session of the Federal Supreme Court (STF) and, savers may adhere to their terms for a 24- month period, counted as from May 22, 2018 with the subsequent conclusion of lawsuits. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.39 Note 8 – Contingent assets and liabilities and legal liabilities – tax and social security ITAÚ UNIBANCO HOLDING PRUDENTIAL, as a result of the ordinary course of its business, may be a party to legal lawsuits of labor, civil and tax nature. The contingencies related to these lawsuits are classified as follows: a) Contingent Assets: There are no contingent assets recorded. b) Provisions and contingencies: The criteria to quantify of provisions for contingencies are adequate in relation to the specific characteristics of civil, labor and tax lawsuits portfolios, as well as other risks, taking into consideration the opinion of its legal advisors, the nature of the lawsuits, the similarity with previous lawsuits and the prevailing previous court decisions. A provision is recognized whenever the loss is classified as probable. Legal liabilities arise from lawsuits filed to discuss the legality and unconstitutionality of the legislation in force, being subject to an accounting provision, regardless of the probability of loss. I- Civil lawsuits: In general, provisions for contingencies arise from claims related to the revision of contracts and compensation for damages and pain and suffering and the lawsuits are classified as follows: Collective lawsuits: Related to claims of a similar nature and with individual amounts that are not considered significant. Provisions are determined on a monthly basis and the expected amount of losses is accrued according to statistical references that take into account the nature of the lawsuit and the characteristics of the court (Small Claims Court or Regular Court). Contingencies and provisions are adjusted to reflect the amounts deposited as guarantee for their execution when realized. Individual lawsuits: Related to claims with unusual characteristics or involving significant amounts. These are periodically calculated based on the calculation of the amount claimed. The amounts considered as probable losses are recorded as provisions. ITAÚ UNIBANCO HOLDING PRUDENTIAL, despite having complied with the rules in force at the time, is a defendant in lawsuits filed by individuals referring to collection of inflation adjustments to savings accounts resulting from economic plants implemented in the decades of 1980 and 1990, as well as in collective lawsuits filed by: (i) consumer protection associations; and (ii) the Public Attorney’s Office, on behalf of the savings accounts holders. ITAÚ UNIBANCO HOLDING PRUDENTIAL recognizes provisions upon receipt of summons, as well as at the time individuals demand the enforcement of the decision rendered by the Judiciary power, using the same criteria adopted to determine provisions for individual lawsuits. The Federal Supreme Court (STF) has issued some decisions favorable to savings account holders, but it has not established its understanding with respect to the constitutionality of the economic plans and their applicability to savings accounts. Currently, the appeals involving these matters are suspended, as determined by the STF, until it pronounces a final decision. In December 2017, through mediation of the Federal Attorney’s Office (AGU) and supervision of the BACEN, savers (represented by two civil associations, FEBRAPO and IDEC) and FEBRABAN entered into an instrument of agreement aiming at resolving lawsuits related to economic plans, and ITAÚ UNIBANCO HOLDING PRUDENTIAL has already adhered to its terms. Said agreement was approved on March 1, 2018, by the Plenary Session of the Federal Supreme Court (STF) and, savers may adhere to their terms for a 24- month period, counted as from May 22, 2018 with the subsequent conclusion of lawsuits. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.39

II- Labor claims Provisions for Contingencies arise from lawsuits in which labor rights provided for in labor legislation specific to the related profession are discussed, such as: overtime, salary equalization, reinstatement, transfer allowance, pension plan supplement, among others, are discussed. These lawsuits are classified as follows: Collective lawsuits: related to claims considered similar and with individual amounts that are not considered relevant. The expected amount of loss is determined and accrued on a monthly basis in accordance with a statistical share pricing model and is reassessed taking into account the court rulings. Provisions for contingencies are adjusted to the amounts deposited as guarantee for their execution when realized. Individual lawsuits: related to claims with unusual characteristics or involving significant amounts. These are periodically calculated based on the calculation of the amount claimed. Probability of loss which, in turn, is estimated in accordance with the actual and legal characteristics related to that lawsuit. III- Other Risks These are quantified and accrued mainly based on the evaluation of rural credit transactions with joint liability and FCVS (salary variations compensation fund) credits assigned to Banco Nacional. Below are the changes in civil, labor and other Risks provisions: 01/01 to 01/01 to 12/31/2018 12/31/2017 Civil Labor Total Total Other Opening balance 5,207,796 7,120,080 149,863 12,477,739 12,330,545 Balance arising from the acquisition of Citibank operations (Note 2c) - - - - 322,227 (-) Guaranteed Provisions by indemnity clauses (Note 3m) (243,032) ( 993,271) - (1,236,303) ( 1,316,548) Subtotal 4,964,764 6,126,809 149,863 11,241,436 11,336,224 Monetary restatement / charges 134,531 499,375 - 633,906 687,980 Changes in the period reflected in results (Notes 9g and 9i) 319,783 1,975,952 422,497 2,718,232 3,649,264 (*) 773,147 2,136,150 424,054 3,333,351 4,522,935 Increase Reversal ( 453,364) ( 160,198) ( 1,557) (615,119) ( 873,671) Payment ( 1,289,350) ( 2,853,359) - (4,142,709) ( 4,432,032) Subtotal 4,129,727 5,748,777 572,360 10,450,864 11,241,436 (+) Guaranteed Provisions by indemnity clauses (Note 3m) 226,179 952,833 - 1,179,012 1,236,303 Closing balance 4,355,909 6,701,611 572,360 11,629,879 12,477,739 Closing balance at 12/31/2017 5,207,796 7,120,080 149,863 12,477,739 Escrow deposits at 12/31/2018 1,533,440 2,234,238 - 3,767,678 Escrow deposits at 12/31/2017 1,421,788 2,119,609 - 3,541,397 (*) Civil provisions include the provision for economic plans amounting to R$ (184,254) (R$ 184,448 from 01/01 to 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.40 II- Labor claims Provisions for Contingencies arise from lawsuits in which labor rights provided for in labor legislation specific to the related profession are discussed, such as: overtime, salary equalization, reinstatement, transfer allowance, pension plan supplement, among others, are discussed. These lawsuits are classified as follows: Collective lawsuits: related to claims considered similar and with individual amounts that are not considered relevant. The expected amount of loss is determined and accrued on a monthly basis in accordance with a statistical share pricing model and is reassessed taking into account the court rulings. Provisions for contingencies are adjusted to the amounts deposited as guarantee for their execution when realized. Individual lawsuits: related to claims with unusual characteristics or involving significant amounts. These are periodically calculated based on the calculation of the amount claimed. Probability of loss which, in turn, is estimated in accordance with the actual and legal characteristics related to that lawsuit. III- Other Risks These are quantified and accrued mainly based on the evaluation of rural credit transactions with joint liability and FCVS (salary variations compensation fund) credits assigned to Banco Nacional. Below are the changes in civil, labor and other Risks provisions: 01/01 to 01/01 to 12/31/2018 12/31/2017 Civil Labor Total Total Other Opening balance 5,207,796 7,120,080 149,863 12,477,739 12,330,545 Balance arising from the acquisition of Citibank operations (Note 2c) - - - - 322,227 (-) Guaranteed Provisions by indemnity clauses (Note 3m) (243,032) ( 993,271) - (1,236,303) ( 1,316,548) Subtotal 4,964,764 6,126,809 149,863 11,241,436 11,336,224 Monetary restatement / charges 134,531 499,375 - 633,906 687,980 Changes in the period reflected in results (Notes 9g and 9i) 319,783 1,975,952 422,497 2,718,232 3,649,264 (*) 773,147 2,136,150 424,054 3,333,351 4,522,935 Increase Reversal ( 453,364) ( 160,198) ( 1,557) (615,119) ( 873,671) Payment ( 1,289,350) ( 2,853,359) - (4,142,709) ( 4,432,032) Subtotal 4,129,727 5,748,777 572,360 10,450,864 11,241,436 (+) Guaranteed Provisions by indemnity clauses (Note 3m) 226,179 952,833 - 1,179,012 1,236,303 Closing balance 4,355,909 6,701,611 572,360 11,629,879 12,477,739 Closing balance at 12/31/2017 5,207,796 7,120,080 149,863 12,477,739 Escrow deposits at 12/31/2018 1,533,440 2,234,238 - 3,767,678 Escrow deposits at 12/31/2017 1,421,788 2,119,609 - 3,541,397 (*) Civil provisions include the provision for economic plans amounting to R$ (184,254) (R$ 184,448 from 01/01 to 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.40

IV- Tax and social security lawsuits Tax provisions correspond to the principal amount of taxes involved in tax, administrative or judicial challenges, subject to tax assessment notices, plus interest and, when applicable, fines and charges. The table below shows the changes in the provisions: 01/01 to 01/01 to 12/31/2018 12/31/2017 Legal Tax lawsuits Total Total obligation Opening balance 4,019,985 2,162,238 6,182,223 7,273,545 (-) Provisions guaranteed by indemnity clauses (Note 3m) - (66,190) (66,190) (63,343) Subtotal 4,019,985 2,096,048 6,116,033 7,210,202 Monetary restatement / charges 125,714 213,129 338,843 567,799 Changes in the period reflected in results 62,701 (295,729) (233,028) 142,382 Increase 178,756 177,258 356,014 433,041 Reversal (116,055) (472,987) (589,042) (290,659) Payment (183,679) (61,131) (244,810) (1,804,349) Subtotal 4,024,721 1,952,317 5,977,038 6,116,034 (+) Provisions guaranteed by indemnity clauses (Note 4m) - 68,177 68,177 66,189 Closing balance (Note 10c) 4,024,721 2,020,494 6,045,215 6,182,223 Closing balance at 12/31/2017 (Note 10c) 4,019,985 2,162,238 6,182,223 01/01 to 01/01 to 12/31/2018 12/31/2017 Escrow deposits Legal Contingencies Total Total obligation Opening balance 4,094,877 616,154 4,711,031 4,400,689 Appropriation of income 141,791 29,062 170,853 327,439 Changes in the period (77,365) 97,663 20,298 (17,097) Deposited 114,109 125,836 239,945 114,819 Withdrawals (35,632) (8,162) (43,794) (96,026) Reversals to income (155,842) (20,011) (175,853) (35,890) Closing balance 4,159,303 742,879 4,902,182 4,711,031 Closing balance at 12/31/2017 4,094,877 616,154 4,711,031 The main discussions related to Tax and Lawsuits and Legal Obligations are described below: · CSLL – Isonomy – R$ 1,333,401: the company is discussing the lack of constitutional support for the increase, established by Law nº 11,727/08, of the CSLL rate for financial and insurance companies from 9% to 15%. The balance of the deposit in court totals R$ 1,316,919; · PIS and COFINS – Calculation basis – R$ 618,522: the company is challenging the levy of PIS and COFINS on revenue, which should be understood as revenue from the sales of assets and services. The balance of the deposit in court totals R$ 612,155; · INSS – Non-compensatory amounts – R$ 639,613: the non-levy of social security contribution on amounts paid as profit sharing is defended. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.41 IV- Tax and social security lawsuits Tax provisions correspond to the principal amount of taxes involved in tax, administrative or judicial challenges, subject to tax assessment notices, plus interest and, when applicable, fines and charges. The table below shows the changes in the provisions: 01/01 to 01/01 to 12/31/2018 12/31/2017 Legal Tax lawsuits Total Total obligation Opening balance 4,019,985 2,162,238 6,182,223 7,273,545 (-) Provisions guaranteed by indemnity clauses (Note 3m) - (66,190) (66,190) (63,343) Subtotal 4,019,985 2,096,048 6,116,033 7,210,202 Monetary restatement / charges 125,714 213,129 338,843 567,799 Changes in the period reflected in results 62,701 (295,729) (233,028) 142,382 Increase 178,756 177,258 356,014 433,041 Reversal (116,055) (472,987) (589,042) (290,659) Payment (183,679) (61,131) (244,810) (1,804,349) Subtotal 4,024,721 1,952,317 5,977,038 6,116,034 (+) Provisions guaranteed by indemnity clauses (Note 4m) - 68,177 68,177 66,189 Closing balance (Note 10c) 4,024,721 2,020,494 6,045,215 6,182,223 Closing balance at 12/31/2017 (Note 10c) 4,019,985 2,162,238 6,182,223 01/01 to 01/01 to 12/31/2018 12/31/2017 Escrow deposits Legal Contingencies Total Total obligation Opening balance 4,094,877 616,154 4,711,031 4,400,689 Appropriation of income 141,791 29,062 170,853 327,439 Changes in the period (77,365) 97,663 20,298 (17,097) Deposited 114,109 125,836 239,945 114,819 Withdrawals (35,632) (8,162) (43,794) (96,026) Reversals to income (155,842) (20,011) (175,853) (35,890) Closing balance 4,159,303 742,879 4,902,182 4,711,031 Closing balance at 12/31/2017 4,094,877 616,154 4,711,031 The main discussions related to Tax and Lawsuits and Legal Obligations are described below: · CSLL – Isonomy – R$ 1,333,401: the company is discussing the lack of constitutional support for the increase, established by Law nº 11,727/08, of the CSLL rate for financial and insurance companies from 9% to 15%. The balance of the deposit in court totals R$ 1,316,919; · PIS and COFINS – Calculation basis – R$ 618,522: the company is challenging the levy of PIS and COFINS on revenue, which should be understood as revenue from the sales of assets and services. The balance of the deposit in court totals R$ 612,155; · INSS – Non-compensatory amounts – R$ 639,613: the non-levy of social security contribution on amounts paid as profit sharing is defended. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.41

c) Off-balance sheet contingencies The amounts involved in administrative and judicial challenges with estimated risk of possible loss are subject to accounting provision and are basically composed of: I- Civil and Labor Claims In Civil Lawsuits with possible loss, total estimated risk is R$ 3,627,545 (R$ 3,256,436 at December 31, 2017), and in this amount there are no values arising from interest in Jointly Controlled Entities. For Labor Claims with possible loss, estimated risk is R$ 176,905 (R$ 121,396 at December 31, 2017). II - Tax and Social Security Lawsuits: Tax and Social Security Lawsuits with possible loss totaled R$ 25,236,792, and the main discussions are described below: · INSS – Non-compensatory amounts – R$ 5,256,828: defends the non-levy of this contribution on these amounts, among which are profit sharing, stock options, transportation vouchers and sole bonuses; · IRPJ, CSLL, PIS and COFINS – Funding Expenses – R$ 3,930,257: the deductibility of funding expenses (DI), related to funds that were capitalized between Group companies, is being challenged; · PIS and COFINS - Reversal of Revenues from Depreciation in Excess – R$ 3,205;432: discussing the accounting and tax treatment granted to PIS and COFINS upon settlement of leasing operations; · IRPJ and CSLL – Goodwill – Deduction – R$ 2,704,023: the deductibility of goodwill with future expected profitability on the acquisition of investments; · IRPJ and CSLL – Interest on capital – R$ 1,478,170: defending the deductibility of interest on capital declared to stockholders based on the Brazilian long term interest rate (TJLP) on the stockholders’ equity for the year and for prior years; · IRPJ, CSLL, PIS and COFINS – Requests for offsetting dismissed - R$ 1,335,623: cases in which the liquidity and the ability of offset credits are discussed; · ISS – Banking Institutions – R$ 1,125,507: these are banking operations, revenue from which may not be interpreted as prices for services rendered, and/or which arises from activities not listed under Supplementary Law nº. 116/03 or Decree Law nº. 406/68; · IRPJ and CSLL – Disallowance of Losses – R$ 1,082,287: discussion on the amount of tax loss (IRPJ) and/or social contribution (CSLL) tax loss carryforwards used by the Federal Revenue Service when drawing up tax assessment notes that are still pending a final decision. · IRPJ and CSLL – Deductibility of Losses in Credit Operations – R$ 757,426: assessments to require thepayment of IRPJ and CSLL due to the alleged non-observance of the legal criteria for the deduction of losses upon the receipt of credits. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.42 c) Off-balance sheet contingencies The amounts involved in administrative and judicial challenges with estimated risk of possible loss are subject to accounting provision and are basically composed of: I- Civil and Labor Claims In Civil Lawsuits with possible loss, total estimated risk is R$ 3,627,545 (R$ 3,256,436 at December 31, 2017), and in this amount there are no values arising from interest in Jointly Controlled Entities. For Labor Claims with possible loss, estimated risk is R$ 176,905 (R$ 121,396 at December 31, 2017). II - Tax and Social Security Lawsuits: Tax and Social Security Lawsuits with possible loss totaled R$ 25,236,792, and the main discussions are described below: · INSS – Non-compensatory amounts – R$ 5,256,828: defends the non-levy of this contribution on these amounts, among which are profit sharing, stock options, transportation vouchers and sole bonuses; · IRPJ, CSLL, PIS and COFINS – Funding Expenses – R$ 3,930,257: the deductibility of funding expenses (DI), related to funds that were capitalized between Group companies, is being challenged; · PIS and COFINS - Reversal of Revenues from Depreciation in Excess – R$ 3,205;432: discussing the accounting and tax treatment granted to PIS and COFINS upon settlement of leasing operations; · IRPJ and CSLL – Goodwill – Deduction – R$ 2,704,023: the deductibility of goodwill with future expected profitability on the acquisition of investments; · IRPJ and CSLL – Interest on capital – R$ 1,478,170: defending the deductibility of interest on capital declared to stockholders based on the Brazilian long term interest rate (TJLP) on the stockholders’ equity for the year and for prior years; · IRPJ, CSLL, PIS and COFINS – Requests for offsetting dismissed - R$ 1,335,623: cases in which the liquidity and the ability of offset credits are discussed; · ISS – Banking Institutions – R$ 1,125,507: these are banking operations, revenue from which may not be interpreted as prices for services rendered, and/or which arises from activities not listed under Supplementary Law nº. 116/03 or Decree Law nº. 406/68; · IRPJ and CSLL – Disallowance of Losses – R$ 1,082,287: discussion on the amount of tax loss (IRPJ) and/or social contribution (CSLL) tax loss carryforwards used by the Federal Revenue Service when drawing up tax assessment notes that are still pending a final decision. · IRPJ and CSLL – Deductibility of Losses in Credit Operations – R$ 757,426: assessments to require thepayment of IRPJ and CSLL due to the alleged non-observance of the legal criteria for the deduction of losses upon the receipt of credits. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.42

d) Receivables - reimbursement of provisions The receivables balance arising from reimbursements of provisions totals R$ 992,215 (R$ 1,059,235 at 12/31/2017) (Note 9a). This value is derived basically from the guarantee in the privatization process of the Banco Banerj S.A., which occurred in 1997, when the State of Rio de Janeiro created a fund to guarantee civil, labor, tax and social security provisions. e) Guarantees of contingencies, provisions and legal obligations The guarantees related to legal proceedings involving ITAÚ UNIBANCO HOLDING PRUDENTIAL and basically consist of: 12/31/2018 12/31/2017 Securities (basically financial treasury bills – Note 5b) 719,784 942,186 Deposits in guarantee 3,976,352 4,230,937 ITAÚ UNIBANCO HOLDING PRUDENTIAL’s litigation provisions are long-term, considering the time required to conclude legal cases through the court system in Brazil, which prevents the disclosure of a deadline for their conclusion. The legal advisors believe that ITAÚ UNIBANCO HOLDING PRUDENTIAL is not a party to this or any other administrative proceedings or lawsuits that could significantly affect the results of its operations. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.43 d) Receivables - reimbursement of provisions The receivables balance arising from reimbursements of provisions totals R$ 992,215 (R$ 1,059,235 at 12/31/2017) (Note 9a). This value is derived basically from the guarantee in the privatization process of the Banco Banerj S.A., which occurred in 1997, when the State of Rio de Janeiro created a fund to guarantee civil, labor, tax and social security provisions. e) Guarantees of contingencies, provisions and legal obligations The guarantees related to legal proceedings involving ITAÚ UNIBANCO HOLDING PRUDENTIAL and basically consist of: 12/31/2018 12/31/2017 Securities (basically financial treasury bills – Note 5b) 719,784 942,186 Deposits in guarantee 3,976,352 4,230,937 ITAÚ UNIBANCO HOLDING PRUDENTIAL’s litigation provisions are long-term, considering the time required to conclude legal cases through the court system in Brazil, which prevents the disclosure of a deadline for their conclusion. The legal advisors believe that ITAÚ UNIBANCO HOLDING PRUDENTIAL is not a party to this or any other administrative proceedings or lawsuits that could significantly affect the results of its operations. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.43

Note 9 - Breakdown of accounts a) Other receivables 12/31/2018 12/31/2017 Foreign exchange portfolio (Note 9b) 87,723,555 52,257,315 Deferred tax assets (Note 10bI) 38,259,465 49,067,012 Deposits in guarantee for contingent, provisions and legal obligations (Note 8b) 12,646,213 12,483,366 Negotiation and intermediation of securities 15,585,358 5,822,698 Taxes and contributions for offsetting 8,995,868 7,669,081 Sundry domestic debtors 1,481,905 2,801,735 Income receivable 2,870,775 2,914,698 Operations without credit granting characteristics 3,218,855 1,962,243 Retirement plan assets (Note 15e) 728,934 1,064,494 Net amount receivables from reimbursement of provisions (Note 8d) 992,215 1,059,235 Sundry foreign debtors 993,841 1,864,038 Other 2,846,007 2,345,983 Total 176,386,914 141,267,975 b) Foreign exchange portfolio 12/31/2018 12/31/2017 Assets - other receivables 87,723,555 52,257,314 Exchange purchase pending settlement – foreign currency 39,837,585 25,709,425 Bills of exchange and term documents – foreign currency 17,347 2,504 Exchange sale rights – local currency 48,144,429 26,814,236 (Advances received) – local currency (275,806) (268,851) Liabilities – other liabilities (Note 2a) 88,350,787 52,444,243 Exchange sales pending settlement – foreign currency 48,291,740 27,284,404 Liabilities from purchase of foreign currency – local currency 39,856,711 24,975,375 Other 202,336 184,464 Memorandum accounts 2,009,985 1,550,303 Outstanding import credits – foreign currency 665,306 829,753 1,344,679 720,550 Confirmed export credits – foreign currency c) Prepaid expenses 12/31/2018 12/31/2017 Advertising 617,812 678,586 (*) Commissions 239,347 484,058 Related to Payroll Loans 60,999 268,833 Related to vehicle financing 13,851 44,835 Other 164,497 170,390 Other 1,173,522 1,109,358 Total 2,030,681 2,272,002 (*) The impact on income related to commission from local correspondents, as described in Note 3g, was R$ 392,585 (R$ 331,904 at 01/01 to 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.44 Note 9 - Breakdown of accounts a) Other receivables 12/31/2018 12/31/2017 Foreign exchange portfolio (Note 9b) 87,723,555 52,257,315 Deferred tax assets (Note 10bI) 38,259,465 49,067,012 Deposits in guarantee for contingent, provisions and legal obligations (Note 8b) 12,646,213 12,483,366 Negotiation and intermediation of securities 15,585,358 5,822,698 Taxes and contributions for offsetting 8,995,868 7,669,081 Sundry domestic debtors 1,481,905 2,801,735 Income receivable 2,870,775 2,914,698 Operations without credit granting characteristics 3,218,855 1,962,243 Retirement plan assets (Note 15e) 728,934 1,064,494 Net amount receivables from reimbursement of provisions (Note 8d) 992,215 1,059,235 Sundry foreign debtors 993,841 1,864,038 Other 2,846,007 2,345,983 Total 176,386,914 141,267,975 b) Foreign exchange portfolio 12/31/2018 12/31/2017 Assets - other receivables 87,723,555 52,257,314 Exchange purchase pending settlement – foreign currency 39,837,585 25,709,425 Bills of exchange and term documents – foreign currency 17,347 2,504 Exchange sale rights – local currency 48,144,429 26,814,236 (Advances received) – local currency (275,806) (268,851) Liabilities – other liabilities (Note 2a) 88,350,787 52,444,243 Exchange sales pending settlement – foreign currency 48,291,740 27,284,404 Liabilities from purchase of foreign currency – local currency 39,856,711 24,975,375 Other 202,336 184,464 Memorandum accounts 2,009,985 1,550,303 Outstanding import credits – foreign currency 665,306 829,753 1,344,679 720,550 Confirmed export credits – foreign currency c) Prepaid expenses 12/31/2018 12/31/2017 Advertising 617,812 678,586 (*) Commissions 239,347 484,058 Related to Payroll Loans 60,999 268,833 Related to vehicle financing 13,851 44,835 Other 164,497 170,390 Other 1,173,522 1,109,358 Total 2,030,681 2,272,002 (*) The impact on income related to commission from local correspondents, as described in Note 3g, was R$ 392,585 (R$ 331,904 at 01/01 to 12/31/2017). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.44

d) Other liabilities 12/31/2018 12/31/2017 Foreign exchange portfolio (Note 9b) 88,350,787 52,444,243 Payment Transactions 37,520,275 37,101,553 Provisions for Civil, Labor, and tax Lawsuits (Note 8b) 13,650,373 14,639,977 Tax and social security contributions (Notes 3m and 8b) 13,188,464 22,611,706 Negotiation and intermediation of securities 9,264,826 4,589,262 Transactions related to credit assignments (Note 6f) 3,993,095 4,930,715 Negotiation and intermediation of securities 309,271 298,275 Social and statutory 3,928,404 4,951,307 Sundry creditors - foreign 2,891,944 3,365,977 Provisions for sundry payments 3,205,017 3,699,533 Sundry creditors - local 2,239,823 1,909,058 Personnel provision 1,636,496 1,522,461 Provision financial guarantees provided (Note 6c) 1,135,694 1,949,644 Creditors of funds to be released 1,331,856 1,134,248 Liabilities for official agreements and rendering of payment services 1,155,177 984,626 Retirement plan liabilities (Note 15e) 696,503 721,159 Other 6,224,166 5,837,667 Total 190,722,171 162,691,411 e) Banking service fees 01/01 to 01/01 to 12/31/2018 12/31/2017 Credit and debit cards 11,671,423 10,561,019 Asset management 5,740,208 5,088,138 Cons Fundsortia management fee 5,059,277 4,459,904 Consortia 680,931 628,234 Fees for guarantees issued and credit lines 1,827,636 2,608,769 Loan operations 356,709 1,091,231 Guarantees provided 1,470,927 1,517,538 Receipt services 1,799,645 1,659,790 Collection fees 1,531,295 1,407,973 Collection services 268,350 251,817 703,470 748,894 Current account Other 3,077,258 2,834,063 Custody and management of portfolio 434,597 407,802 Economic and financial advisory 780,087 670,994 Other services 1,862,574 1,755,267 Total 24,819,640 23,500,673 f) Income from bank charges 01/01 to 01/01 to 12/31/2018 12/31/2017 Service package fees 6,486,449 6,201,537 Credit cards – annual fees and other services 3,840,477 3,566,610 Loan operations / registration 839,054 875,827 Income related to securities brokerage 848,218 770,648 Transfer of funds 396,554 302,363 Deposit account 213,287 196,094 12,624,039 11,913,079 Total Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.45 d) Other liabilities 12/31/2018 12/31/2017 Foreign exchange portfolio (Note 9b) 88,350,787 52,444,243 Payment Transactions 37,520,275 37,101,553 Provisions for Civil, Labor, and tax Lawsuits (Note 8b) 13,650,373 14,639,977 Tax and social security contributions (Notes 3m and 8b) 13,188,464 22,611,706 Negotiation and intermediation of securities 9,264,826 4,589,262 Transactions related to credit assignments (Note 6f) 3,993,095 4,930,715 Negotiation and intermediation of securities 309,271 298,275 Social and statutory 3,928,404 4,951,307 Sundry creditors - foreign 2,891,944 3,365,977 Provisions for sundry payments 3,205,017 3,699,533 Sundry creditors - local 2,239,823 1,909,058 Personnel provision 1,636,496 1,522,461 Provision financial guarantees provided (Note 6c) 1,135,694 1,949,644 Creditors of funds to be released 1,331,856 1,134,248 Liabilities for official agreements and rendering of payment services 1,155,177 984,626 Retirement plan liabilities (Note 15e) 696,503 721,159 Other 6,224,166 5,837,667 Total 190,722,171 162,691,411 e) Banking service fees 01/01 to 01/01 to 12/31/2018 12/31/2017 Credit and debit cards 11,671,423 10,561,019 Asset management 5,740,208 5,088,138 Cons Fundsortia management fee 5,059,277 4,459,904 Consortia 680,931 628,234 Fees for guarantees issued and credit lines 1,827,636 2,608,769 Loan operations 356,709 1,091,231 Guarantees provided 1,470,927 1,517,538 Receipt services 1,799,645 1,659,790 Collection fees 1,531,295 1,407,973 Collection services 268,350 251,817 703,470 748,894 Current account Other 3,077,258 2,834,063 Custody and management of portfolio 434,597 407,802 Economic and financial advisory 780,087 670,994 Other services 1,862,574 1,755,267 Total 24,819,640 23,500,673 f) Income from bank charges 01/01 to 01/01 to 12/31/2018 12/31/2017 Service package fees 6,486,449 6,201,537 Credit cards – annual fees and other services 3,840,477 3,566,610 Loan operations / registration 839,054 875,827 Income related to securities brokerage 848,218 770,648 Transfer of funds 396,554 302,363 Deposit account 213,287 196,094 12,624,039 11,913,079 Total Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.45

g) Personnel expenses 01/01 to 01/01 to 12/31/2018 12/31/2017 Compensation (8,825,897) (8,257,826) Employees’ profit sharing (3,927,821) (3,425,480) Welfare benefits (3,739,088) (3,362,955) Charges (2,966,406) (2,793,593) Labor claims and termination of employees (2,380,871) (2,815,270) Share-based payment (Note 12g) (225,488) (233,632) Training (247,289) (229,952) (22,312,860) (21,118,708) Total h) Other administrative expenses 01/01 to 01/01 to 12/31/2018 12/31/2017 Third-party services (4,456,718) (4,135,070) Data processing and telecommunications (4,191,482) (4,073,648) Installations (3,524,569) (3,376,397) Depreciation and amortization (2,660,641) (2,241,522) Advertising, promotions and publication (1,283,897) (1,075,617) Financial system services (822,112) (806,563) Security (753,234) (722,112) Transportation (347,863) (336,757) Materials (326,650) (347,496) (226,361) (210,053) Travel expenses Other (1,265,362) (1,210,726) Total (19,858,889) ( 18,535,961) i) Other operating expenses 01/01 to 01/01 to 12/31/2018 12/31/2017 Selling - credit cards (3,974,366) (3,348,118) Amortization of goodwill (3,212,965) (3,115,564) Operations with no Credit Granting Characteristics, net amount (1,755,941) (537,313) Provision for lawsuits (Note 8b) (481,129) (1,303,655) Civil (319,783) (1,385,476) 261,151 (26,691) Tax and social security contributions Other (422,497) 108,512 Claims (397,291) (310,401) Refund of interbank costs (290,888) (305,909) Impairment – Other receivables Sundry (167,523) (249,284) Other (1,837,795) (2,339,057) ( 12,117,898) (11,509,301) Total Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.46 g) Personnel expenses 01/01 to 01/01 to 12/31/2018 12/31/2017 Compensation (8,825,897) (8,257,826) Employees’ profit sharing (3,927,821) (3,425,480) Welfare benefits (3,739,088) (3,362,955) Charges (2,966,406) (2,793,593) Labor claims and termination of employees (2,380,871) (2,815,270) Share-based payment (Note 12g) (225,488) (233,632) Training (247,289) (229,952) (22,312,860) (21,118,708) Total h) Other administrative expenses 01/01 to 01/01 to 12/31/2018 12/31/2017 Third-party services (4,456,718) (4,135,070) Data processing and telecommunications (4,191,482) (4,073,648) Installations (3,524,569) (3,376,397) Depreciation and amortization (2,660,641) (2,241,522) Advertising, promotions and publication (1,283,897) (1,075,617) Financial system services (822,112) (806,563) Security (753,234) (722,112) Transportation (347,863) (336,757) Materials (326,650) (347,496) (226,361) (210,053) Travel expenses Other (1,265,362) (1,210,726) Total (19,858,889) ( 18,535,961) i) Other operating expenses 01/01 to 01/01 to 12/31/2018 12/31/2017 Selling - credit cards (3,974,366) (3,348,118) Amortization of goodwill (3,212,965) (3,115,564) Operations with no Credit Granting Characteristics, net amount (1,755,941) (537,313) Provision for lawsuits (Note 8b) (481,129) (1,303,655) Civil (319,783) (1,385,476) 261,151 (26,691) Tax and social security contributions Other (422,497) 108,512 Claims (397,291) (310,401) Refund of interbank costs (290,888) (305,909) Impairment – Other receivables Sundry (167,523) (249,284) Other (1,837,795) (2,339,057) ( 12,117,898) (11,509,301) Total Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.46

Note 10 - Taxes ITAÚ UNIBANCO HOLDING and each one of its subsidiaries calculate separately, in each fiscal year, Income Tax and Social Contribution on Net Income. Taxes are calculated at the rates shown below and consider, for effects of respective calculation bases, the legislation in force applicable to each charge. Income tax 15.00% Additional income tax 10.00% (1) 20.00% Social contribution (2) 0.65% PIS (2) 4.00% COFINS ISS up to 5.00% (1) On October 06, 2015, law nº. 13,169, a conversion of provisional measure nº. 675, which increased the Social Contribution tax rate from 15.00% to 20.00% until December 31, 2018, for financial institutions, insurance companies and credit card management companies, was introduced. For the other companies, the tax rate remains at 9.00%; (2) For non-financial subsidiaries that fall into the non-cumulative calculation system, the PIS rate is 1.65% and COFINS rate is 7.60%. a) Expenses for taxes and contributions I - Demonstration of Income tax and social contribution expense calculation: 01/01 to 01/01 to Due on operations for the period 12/31/2018 12/31/2017 2 8,627,984 2 8,777,345 Income before income tax and social contribution Charges (income tax and social contribution) at the rates in effect (12,882,593) (12,949,805) Increase/decrease to income tax and social contribution charges arising from: Investments in affiliates and jointly controlled entities 2 ,592,888 1 ,521,770 3 ,161,491 279,271 Foreign exchange variation on investments abroad Interest on capital 3,748,950 3,838,979 Dividends and interest on external debt bonds 468,567 4 20,223 (*) (5 06,890) 3 ,871,959 Other nondeductible expenses net of non taxable income Income tax and social contribution expenses (3,417,587) (3,017,603) Related to temporary differences Increase (reversal) for the period (1,777,127) (3,826,801) Increase (reversal) of prior periods 1 00,710 89,688 (Expenses)/Income from deferred taxes (1 ,676,417) (3,737,113) Total income tax and social contribution expenses (5,094,004) (6,754,716) (*) Includes temporary (additions) and exclusions. II Tax expenses: 01/01 to 01/01 to 12/31/2018 12/31/2017 PIS and COFINS (4,217,053) ( 4,914,377) ISS (1,275,499) ( 1,090,208) Other ( 660,564) (589,311) Total (Note 3n) ( 6,153,116) (6,593,896) III- Tax effects on foreign exchange management of investments abroad In order to minimize the effects on income in connection with the foreign exchange variation on investments abroad, net of respective tax effects, ITAÚ UNIBANCO HOLDING PRUDENTIAL carries out derivative transactions in foreign currency (hedge), as mentioned in Note 18b. The results of these transactions are considered in the calculation base of income tax and social contribution, in accordance with their nature, while the foreign exchange variations on investments abroad are not included therein, pursuant to the tax legislation in force. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.47 Note 10 - Taxes ITAÚ UNIBANCO HOLDING and each one of its subsidiaries calculate separately, in each fiscal year, Income Tax and Social Contribution on Net Income. Taxes are calculated at the rates shown below and consider, for effects of respective calculation bases, the legislation in force applicable to each charge. Income tax 15.00% Additional income tax 10.00% (1) 20.00% Social contribution (2) 0.65% PIS (2) 4.00% COFINS ISS up to 5.00% (1) On October 06, 2015, law nº. 13,169, a conversion of provisional measure nº. 675, which increased the Social Contribution tax rate from 15.00% to 20.00% until December 31, 2018, for financial institutions, insurance companies and credit card management companies, was introduced. For the other companies, the tax rate remains at 9.00%; (2) For non-financial subsidiaries that fall into the non-cumulative calculation system, the PIS rate is 1.65% and COFINS rate is 7.60%. a) Expenses for taxes and contributions I - Demonstration of Income tax and social contribution expense calculation: 01/01 to 01/01 to Due on operations for the period 12/31/2018 12/31/2017 2 8,627,984 2 8,777,345 Income before income tax and social contribution Charges (income tax and social contribution) at the rates in effect (12,882,593) (12,949,805) Increase/decrease to income tax and social contribution charges arising from: Investments in affiliates and jointly controlled entities 2 ,592,888 1 ,521,770 3 ,161,491 279,271 Foreign exchange variation on investments abroad Interest on capital 3,748,950 3,838,979 Dividends and interest on external debt bonds 468,567 4 20,223 (*) (5 06,890) 3 ,871,959 Other nondeductible expenses net of non taxable income Income tax and social contribution expenses (3,417,587) (3,017,603) Related to temporary differences Increase (reversal) for the period (1,777,127) (3,826,801) Increase (reversal) of prior periods 1 00,710 89,688 (Expenses)/Income from deferred taxes (1 ,676,417) (3,737,113) Total income tax and social contribution expenses (5,094,004) (6,754,716) (*) Includes temporary (additions) and exclusions. II Tax expenses: 01/01 to 01/01 to 12/31/2018 12/31/2017 PIS and COFINS (4,217,053) ( 4,914,377) ISS (1,275,499) ( 1,090,208) Other ( 660,564) (589,311) Total (Note 3n) ( 6,153,116) (6,593,896) III- Tax effects on foreign exchange management of investments abroad In order to minimize the effects on income in connection with the foreign exchange variation on investments abroad, net of respective tax effects, ITAÚ UNIBANCO HOLDING PRUDENTIAL carries out derivative transactions in foreign currency (hedge), as mentioned in Note 18b. The results of these transactions are considered in the calculation base of income tax and social contribution, in accordance with their nature, while the foreign exchange variations on investments abroad are not included therein, pursuant to the tax legislation in force. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.47

b) Deferred taxes I - The Deferred Tax Asset balance and its changes, segregated based on its origin and disbursements incurred, are represented as follows: Origin Deferred Tax Assets Realization / 12/31/2018 12/31/2017 12/31/2017 Increase 12/31/2018 Reversal Reflected in income 47,806,385 (21,238,397) 10,122,163 36,690,151 Allowance for loan losses 54,955,983 66,933,012 28,435,246 (10,389,260) 2,748,708 20,794,694 Related to tax losses and social contribution loss carryforwards 5,907,408 (2,305,992) 6,570 3,607,986 Provision for profit sharing 4,785,882 4,998,413 1,815,396 (1,815,396) 1,804,621 1,804,621 Provision for devaluation of securities with permanent impairment 3,469,032 3,180,164 1,293,652 (1,273,075) 1,365,367 1,385,944 Adjustment to market value of securities and derivative financial instruments (assets/liabilities) 251,412 498,874 207,430 (207,430) 112,463 112,463 Adjustments of operations carried out on the futures settlement market 244,883 599,933 299,754 (299,754) 105,210 105,210 Goodwill on purchase of investments 1,650,415 1,004,684 513,191 (184,265) 143,130 472,056 Provision for contingent liabilities 11,245,150 12,336,377 5,081,348 (1,989,036) 1,289,875 4,382,187 Civil lawsuits 4,006,864 4,750,385 1,949,298 (597,301) 210,591 1,562,588 Labor claims 5,217,792 5,523,811 2,159,043 (1,178,087) 1,030,445 2,011,401 Tax and social security contributions 2,020,494 2,062,181 973,007 (213,648) 48,839 808,198 Legal liabilities 1,187,173 2,235,853 331,588 (44,145) 238,062 525,505 Other non-deductible provisions 8,795,382 5,784,663 3,921,372 (2,730,044) 2,308,157 3,499,485 Reflected in stockholders’ equity 1,260,627 (154,660) 463,347 1,569,314 Adjustment to market value of available-for-sale securities 433,890 354,888 160,591 (153,929) 170,503 177,165 Cash flow hedge 2,872,208 2,748,262 1,099,305 - 189,648 1,288,953 Post-employment benefits 257,989 1,625 731 (731) 103,196 103,196 (*) Total 90,149,399 100,676,748 49,067,012 (21,393,057) 10,585,510 38,259,465 Social contribution for offsetting arising from Option established in article 8º of Provisional 611,140 (8,220) - 6 02,920 Measure nº. 2,158-35 of August 24, 2001 (*) The accounting records of deferred tax assets on income tax losses and/or social contribution loss carryforwards, as well as those arising from temporary differences, are based on technical feasibility studies which consider the expected generation of future taxable income, considering the history of profitability for each subsidiary individually, and for the consolidated taken as a whole. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.48 b) Deferred taxes I - The Deferred Tax Asset balance and its changes, segregated based on its origin and disbursements incurred, are represented as follows: Origin Deferred Tax Assets Realization / 12/31/2018 12/31/2017 12/31/2017 Increase 12/31/2018 Reversal Reflected in income 47,806,385 (21,238,397) 10,122,163 36,690,151 Allowance for loan losses 54,955,983 66,933,012 28,435,246 (10,389,260) 2,748,708 20,794,694 Related to tax losses and social contribution loss carryforwards 5,907,408 (2,305,992) 6,570 3,607,986 Provision for profit sharing 4,785,882 4,998,413 1,815,396 (1,815,396) 1,804,621 1,804,621 Provision for devaluation of securities with permanent impairment 3,469,032 3,180,164 1,293,652 (1,273,075) 1,365,367 1,385,944 Adjustment to market value of securities and derivative financial instruments (assets/liabilities) 251,412 498,874 207,430 (207,430) 112,463 112,463 Adjustments of operations carried out on the futures settlement market 244,883 599,933 299,754 (299,754) 105,210 105,210 Goodwill on purchase of investments 1,650,415 1,004,684 513,191 (184,265) 143,130 472,056 Provision for contingent liabilities 11,245,150 12,336,377 5,081,348 (1,989,036) 1,289,875 4,382,187 Civil lawsuits 4,006,864 4,750,385 1,949,298 (597,301) 210,591 1,562,588 Labor claims 5,217,792 5,523,811 2,159,043 (1,178,087) 1,030,445 2,011,401 Tax and social security contributions 2,020,494 2,062,181 973,007 (213,648) 48,839 808,198 Legal liabilities 1,187,173 2,235,853 331,588 (44,145) 238,062 525,505 Other non-deductible provisions 8,795,382 5,784,663 3,921,372 (2,730,044) 2,308,157 3,499,485 Reflected in stockholders’ equity 1,260,627 (154,660) 463,347 1,569,314 Adjustment to market value of available-for-sale securities 433,890 354,888 160,591 (153,929) 170,503 177,165 Cash flow hedge 2,872,208 2,748,262 1,099,305 - 189,648 1,288,953 Post-employment benefits 257,989 1,625 731 (731) 103,196 103,196 (*) Total 90,149,399 100,676,748 49,067,012 (21,393,057) 10,585,510 38,259,465 Social contribution for offsetting arising from Option established in article 8º of Provisional 611,140 (8,220) - 6 02,920 Measure nº. 2,158-35 of August 24, 2001 (*) The accounting records of deferred tax assets on income tax losses and/or social contribution loss carryforwards, as well as those arising from temporary differences, are based on technical feasibility studies which consider the expected generation of future taxable income, considering the history of profitability for each subsidiary individually, and for the consolidated taken as a whole. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.48

II - Provision for Deferred Income Tax and Social Contribution balance and its changes are shown as follows: Realization / 12/31/2017 Increase 12/31/2018 Reversal Reflected in income and expense accounts 13,336,320 (11,376,793) 3,405,096 5,364,623 Depreciation in excess – leasing 613,348 (267,594) - 345,754 Restatement of escrow deposits and contingent liabilities 1,146,455 ( 9,536) 75,593 1,212,512 Post-employment benefits 163,165 ( 143,137) 266,872 286,900 Adjustment to market value of securities and derivative financial instruments 8,498,725 (8,498,725) 2,007,291 2,007,291 Adjustments of operations carried out on the futures settlement market 1,575,716 (1,575,716) 1,020,024 1,020,024 Taxation of results abroad – capital gains 7 ( 7) - - Other 1,338,904 (882,078) 35,316 492,142 Reflected in stockholders’ equity accounts 29,489 (22,113) 109,022 116,398 Adjustment to market value of available-for-sale securities 20,512 (13,136) 102,456 109,832 Post-employment benefits 8,977 (8,977) 6,566 6,566 Total 13,365,809 (11,398,906) 3,514,118 5,481,021 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.49 II - Provision for Deferred Income Tax and Social Contribution balance and its changes are shown as follows: Realization / 12/31/2017 Increase 12/31/2018 Reversal Reflected in income and expense accounts 13,336,320 (11,376,793) 3,405,096 5,364,623 Depreciation in excess – leasing 613,348 (267,594) - 345,754 Restatement of escrow deposits and contingent liabilities 1,146,455 ( 9,536) 75,593 1,212,512 Post-employment benefits 163,165 ( 143,137) 266,872 286,900 Adjustment to market value of securities and derivative financial instruments 8,498,725 (8,498,725) 2,007,291 2,007,291 Adjustments of operations carried out on the futures settlement market 1,575,716 (1,575,716) 1,020,024 1,020,024 Taxation of results abroad – capital gains 7 ( 7) - - Other 1,338,904 (882,078) 35,316 492,142 Reflected in stockholders’ equity accounts 29,489 (22,113) 109,022 116,398 Adjustment to market value of available-for-sale securities 20,512 (13,136) 102,456 109,832 Post-employment benefits 8,977 (8,977) 6,566 6,566 Total 13,365,809 (11,398,906) 3,514,118 5,481,021 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.49

III - The estimate of realization and present value of deferred tax assets and social contribution for offset, arising from Provisional Measure No. 2,158-35 of August 24, 2001 and from the Provision for Deferred Income Tax and Social Contribution existing at December 31, 2018, are: Deferred tax assets Provision for Social deferred Net deferred Tax loss/social Year of realization contribution income tax % % Temporary taxes % contribution loss % Total % % for offset and social differences carryforwards contribution 2019 11,646,201 34% 1,145,526 32% 1 2,791,727 33% 5,629 1% ( 766,808) 14% 12,030,548 36% 2020 1 3,583,769 39% 6 16,790 17% 14,200,559 37% 64,143 11% (1,382,827) 25% 12,881,875 38% 2021 4 ,073,219 12% 5 04,415 14% 4 ,577,634 12% 4 87,508 81% (447,908) 8% 4 ,617,234 14% 2022 790,804 2% 3 24,703 9% 1 ,115,507 3% - 0% ( 1,142,019) 21% ( 26,512) 0% 2023 6 32,569 2% 1 29,209 3% 761,778 2% 4 5,086 7% ( 108,774) 2% 6 98,090 2% 3 ,924,917 11% 8 87,343 25% 4,812,260 13% 554 0% (1,632,685) 30% 3,180,129 10% after 2023 Total 3 4,651,479 100% 3 ,607,986 100% 38,259,465 100% 602,920 100% ( 5,481,021) 100% 3 3,381,364 100% (*) Present value 3 1,680,571 3,170,757 34,851,328 539,092 (4,689,711) 30,700,709 (*) The average funding rate, net of tax effects, was used to determine the present value. The projections of future taxable income include estimates related to macroeconomic variables, exchange rates, interest rates, volume of financial operations and service fees and others, which can vary in relation to actual data and amounts. Net income in the financial statements is not directly related to the taxable income for income tax and social contribution, due to differences between the accounting criteria and tax legislation, in addition to corporate aspects. Accordingly, it is recommended that changes in realization of deferred tax assets presented below is not considered as an indication of future net income. IV- On December 31, 2018, Social Contribution deferred tax assets are recorded at 15% due to the end of temporary effects brought by Law No. 13,169/15, which increased the social contribution tax rate from 15% to 20% until December 31, 2018. As at 12/31/2018 and 12/31/2017, there are no unrecognized tax credits. c) Tax and social security contributions 12/31/2018 12/31/2017 Taxes and contributions on income payable 1,489,983 2,314,270 2,192,739 2,911,642 Other Taxes and Contributions payable Provision for deferred income tax and social contribution (Note 10b II) 5,481,021 13,365,809 4,024,721 4,019,985 Legal liabilities (Note 8b IV) Total 13,188,464 22,611,706 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.50 III - The estimate of realization and present value of deferred tax assets and social contribution for offset, arising from Provisional Measure No. 2,158-35 of August 24, 2001 and from the Provision for Deferred Income Tax and Social Contribution existing at December 31, 2018, are: Deferred tax assets Provision for Social deferred Net deferred Tax loss/social Year of realization contribution income tax % % Temporary taxes % contribution loss % Total % % for offset and social differences carryforwards contribution 2019 11,646,201 34% 1,145,526 32% 1 2,791,727 33% 5,629 1% ( 766,808) 14% 12,030,548 36% 2020 1 3,583,769 39% 6 16,790 17% 14,200,559 37% 64,143 11% (1,382,827) 25% 12,881,875 38% 2021 4 ,073,219 12% 5 04,415 14% 4 ,577,634 12% 4 87,508 81% (447,908) 8% 4 ,617,234 14% 2022 790,804 2% 3 24,703 9% 1 ,115,507 3% - 0% ( 1,142,019) 21% ( 26,512) 0% 2023 6 32,569 2% 1 29,209 3% 761,778 2% 4 5,086 7% ( 108,774) 2% 6 98,090 2% 3 ,924,917 11% 8 87,343 25% 4,812,260 13% 554 0% (1,632,685) 30% 3,180,129 10% after 2023 Total 3 4,651,479 100% 3 ,607,986 100% 38,259,465 100% 602,920 100% ( 5,481,021) 100% 3 3,381,364 100% (*) Present value 3 1,680,571 3,170,757 34,851,328 539,092 (4,689,711) 30,700,709 (*) The average funding rate, net of tax effects, was used to determine the present value. The projections of future taxable income include estimates related to macroeconomic variables, exchange rates, interest rates, volume of financial operations and service fees and others, which can vary in relation to actual data and amounts. Net income in the financial statements is not directly related to the taxable income for income tax and social contribution, due to differences between the accounting criteria and tax legislation, in addition to corporate aspects. Accordingly, it is recommended that changes in realization of deferred tax assets presented below is not considered as an indication of future net income. IV- On December 31, 2018, Social Contribution deferred tax assets are recorded at 15% due to the end of temporary effects brought by Law No. 13,169/15, which increased the social contribution tax rate from 15% to 20% until December 31, 2018. As at 12/31/2018 and 12/31/2017, there are no unrecognized tax credits. c) Tax and social security contributions 12/31/2018 12/31/2017 Taxes and contributions on income payable 1,489,983 2,314,270 2,192,739 2,911,642 Other Taxes and Contributions payable Provision for deferred income tax and social contribution (Note 10b II) 5,481,021 13,365,809 4,024,721 4,019,985 Legal liabilities (Note 8b IV) Total 13,188,464 22,611,706 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.50

Note 11 – Permanent Assets a) Fixed assets, goodwill and intangible assets I) Fixed assets (2) (3) (2) (3) Real Estate in Use Other Fixed Assets Fixed assets Other (1) Real estate in use under Furniture and (communication, Total Land Buildings Improvements Installations EDP Systems construction equipment security and transportation) Annual depreciation rates 4% 10% 10 to 20% 10 to 20% 20 to 50% 10 to 20% Cost Balance at 12/31/2017 355,722 599,664 2,469,358 2,190,922 1,890,418 1,126,928 6,410,953 1,143,244 16,187,209 Acquisitions 435,337 - - 34,603 22,231 58,641 762,640 128,509 1,441,961 Disposals - (2,915) (63,244) (44,772) (8,783) (15,678) (253,575) (29,821) (418,788) Exchange variation 3,139 6,132 (2,459) 41,744 (8,320) (1,657) (11,844) 4,111 30,846 Transfers (272,491) - 50,971 121,169 38,791 - 61,560 - - Other - (62,452) (24,795) 86,778 (6,487) (44,125) 29,358 575 (21,148) Balance at 12/31/2018 521,707 540,429 2,429,831 2,430,444 1,927,850 1,124,109 6,999,092 1,246,618 17,220,080 Depreciation Balance at 12/31/2017 - - (1,380,851) (1,368,252) (1,104,142) (694,125) (5,041,032) (749,327) (10,337,729) Depreciation expenses - - (62,924) (180,694) (150,665) (93,550) (635,508) (120,783) (1,244,124) Disposals - - 11,735 32,374 2,511 11,069 225,964 28,603 312,256 Exchange variation - - 14,388 (24,910) 12,361 16,281 (4,807) (2,903) 10,410 Other - - 4,210 (80,339) (2,375) (1,271) 15,746 (13,527) (77,556) Balance at 12/31/2018 - - (1,413,442) (1,621,821) (1,242,310) (761,596) (5,439,637) (857,937) (11,336,743) Book value (*) Balance at 12/31/2018 521,707 540,429 1,016,389 808,623 685,540 362,513 1,559,455 388,681 5,883,337 (*) Balance at 12/31/2017 355,722 599,664 1,088,507 822,670 786,276 432,803 1,369,921 393,917 5,849,480 (1) The contractual commitments for the purchase of the fixed assets totaled R$ 41,433 achievable by 2019; (2) Includes amounts pledged in guarantee of voluntary deposits; (3) Includes the amount of R$ 2,789 (R$ 3,292 at 12/31/2017) related to attached real estate. (4) During the period, there was no impairment of assets recorded in Fixed assets. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.51 Note 11 – Permanent Assets a) Fixed assets, goodwill and intangible assets I) Fixed assets (2) (3) (2) (3) Real Estate in Use Other Fixed Assets Fixed assets Other (1) Real estate in use under Furniture and (communication, Total Land Buildings Improvements Installations EDP Systems construction equipment security and transportation) Annual depreciation rates 4% 10% 10 to 20% 10 to 20% 20 to 50% 10 to 20% Cost Balance at 12/31/2017 355,722 599,664 2,469,358 2,190,922 1,890,418 1,126,928 6,410,953 1,143,244 16,187,209 Acquisitions 435,337 - - 34,603 22,231 58,641 762,640 128,509 1,441,961 Disposals - (2,915) (63,244) (44,772) (8,783) (15,678) (253,575) (29,821) (418,788) Exchange variation 3,139 6,132 (2,459) 41,744 (8,320) (1,657) (11,844) 4,111 30,846 Transfers (272,491) - 50,971 121,169 38,791 - 61,560 - - Other - (62,452) (24,795) 86,778 (6,487) (44,125) 29,358 575 (21,148) Balance at 12/31/2018 521,707 540,429 2,429,831 2,430,444 1,927,850 1,124,109 6,999,092 1,246,618 17,220,080 Depreciation Balance at 12/31/2017 - - (1,380,851) (1,368,252) (1,104,142) (694,125) (5,041,032) (749,327) (10,337,729) Depreciation expenses - - (62,924) (180,694) (150,665) (93,550) (635,508) (120,783) (1,244,124) Disposals - - 11,735 32,374 2,511 11,069 225,964 28,603 312,256 Exchange variation - - 14,388 (24,910) 12,361 16,281 (4,807) (2,903) 10,410 Other - - 4,210 (80,339) (2,375) (1,271) 15,746 (13,527) (77,556) Balance at 12/31/2018 - - (1,413,442) (1,621,821) (1,242,310) (761,596) (5,439,637) (857,937) (11,336,743) Book value (*) Balance at 12/31/2018 521,707 540,429 1,016,389 808,623 685,540 362,513 1,559,455 388,681 5,883,337 (*) Balance at 12/31/2017 355,722 599,664 1,088,507 822,670 786,276 432,803 1,369,921 393,917 5,849,480 (1) The contractual commitments for the purchase of the fixed assets totaled R$ 41,433 achievable by 2019; (2) Includes amounts pledged in guarantee of voluntary deposits; (3) Includes the amount of R$ 2,789 (R$ 3,292 at 12/31/2017) related to attached real estate. (4) During the period, there was no impairment of assets recorded in Fixed assets. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.51

ll) Goodwill and Intangible assets (2) Intangible assets Association for the (1) Total Goodwill Other intangible promotion and offer Internally developed Software Acquired (3) of financial products software assets and services Annual amortization rates Up to 20% 8% 20% 20% 10% to 20% Cost Balance at 12/31/2017 20,969,389 2,452,107 4,484,702 4,342,732 2,097,791 34,346,721 Acquisitions - 1,000 643,487 318,101 408,445 1,371,033 Disposals (6,684) ( 27,412) (312,444) (189,065) (210,236) (745,841) Exchange variation 261,832 46,506 204,427 - 77,083 589,848 Other - 26,329 11,203 46,897 5,000 89,429 Balance at 12/31/2018 21,224,537 2,498,530 5,031,375 4,518,665 2,378,083 35,651,190 Amortization Balance at 12/31/2017 (11,630,936) ( 646,902) (1,986,769) (1,256,833) (965,726) (16,487,166) (4) Amortization expenses (3,142,341) ( 220,994) (584,110) (696,553) (258,591) (4,902,589) Disposals - 27,412 311,891 154,425 210,236 703,964 Exchange variation (34,008) ( 140,942) (152,545) - (65,502) (392,997) Other - 138,718 (2,880) (13,846) 3,827 125,819 Balance at 12/31/2018 (14,807,285) ( 842,708) (2,414,413) (1,812,807) (1,075,756) (20,952,969) Impairment (Note 9i) Balance at 12/31/2017 - - (54,286) (342,475) - (396,761) Additions/ assumptions - - (167,003) (360) - (167,363) Disposals - - (4,462) - - (4,462) Balance at 12/31/2018 - - (225,751) (342,835) - (568,586) Book value Balance at 12/31/2018 6,417,252 1,655,822 2,391,211 2,363,023 1,302,327 14,129,635 Balance at 12/31/2017 9,338,453 1,805,205 2,443,647 2,743,424 1,132,065 17,462,794 (1) Includes goodwill on acquisitio in the amount of R$ 6,004,151 (R$ 8,668,832 em 12/31/2017); (2) The contractual commitments for the purchase of the new intangible assets totaled R$ 636,661 achievable by 2020; (3) Includes of amounts paid for acquisition of rights to provide services of payment of salaries, proceeds, retirement and pension benefits and similar benefits; (4) Amortization expenses related to the rights for acquisition of payrolls and associations, in the amount of R$ (450,083) (R$ 487,286) from 01/01 to 12/31/2017) are disclosed in the expenses on financial operation. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.52 ll) Goodwill and Intangible assets (2) Intangible assets Association for the (1) Total Goodwill Other intangible promotion and offer Internally developed Software Acquired (3) of financial products software assets and services Annual amortization rates Up to 20% 8% 20% 20% 10% to 20% Cost Balance at 12/31/2017 20,969,389 2,452,107 4,484,702 4,342,732 2,097,791 34,346,721 Acquisitions - 1,000 643,487 318,101 408,445 1,371,033 Disposals (6,684) ( 27,412) (312,444) (189,065) (210,236) (745,841) Exchange variation 261,832 46,506 204,427 - 77,083 589,848 Other - 26,329 11,203 46,897 5,000 89,429 Balance at 12/31/2018 21,224,537 2,498,530 5,031,375 4,518,665 2,378,083 35,651,190 Amortization Balance at 12/31/2017 (11,630,936) ( 646,902) (1,986,769) (1,256,833) (965,726) (16,487,166) (4) Amortization expenses (3,142,341) ( 220,994) (584,110) (696,553) (258,591) (4,902,589) Disposals - 27,412 311,891 154,425 210,236 703,964 Exchange variation (34,008) ( 140,942) (152,545) - (65,502) (392,997) Other - 138,718 (2,880) (13,846) 3,827 125,819 Balance at 12/31/2018 (14,807,285) ( 842,708) (2,414,413) (1,812,807) (1,075,756) (20,952,969) Impairment (Note 9i) Balance at 12/31/2017 - - (54,286) (342,475) - (396,761) Additions/ assumptions - - (167,003) (360) - (167,363) Disposals - - (4,462) - - (4,462) Balance at 12/31/2018 - - (225,751) (342,835) - (568,586) Book value Balance at 12/31/2018 6,417,252 1,655,822 2,391,211 2,363,023 1,302,327 14,129,635 Balance at 12/31/2017 9,338,453 1,805,205 2,443,647 2,743,424 1,132,065 17,462,794 (1) Includes goodwill on acquisitio in the amount of R$ 6,004,151 (R$ 8,668,832 em 12/31/2017); (2) The contractual commitments for the purchase of the new intangible assets totaled R$ 636,661 achievable by 2020; (3) Includes of amounts paid for acquisition of rights to provide services of payment of salaries, proceeds, retirement and pension benefits and similar benefits; (4) Amortization expenses related to the rights for acquisition of payrolls and associations, in the amount of R$ (450,083) (R$ 487,286) from 01/01 to 12/31/2017) are disclosed in the expenses on financial operation. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.52

Note 12 – Stockholders' equity a) Capital Capital is represented by 9,804,135,348 book-entry shares with no par value, of which 4,958,290,359 are common and 4,845,844,989 are preferred shares with no voting rights, but with tag-along rights, in the event of disposal of control, to be included in a public offering of shares, so as to ensure the price equal to eighty per cent (80%) of the amount paid per share with voting rights in the controlling stake, as well as a dividend at least equal to that of the common shares. In Meetings of the Board of Directors held on 12/15/2017 and 02/22/2018, cancellations of 31,793,105 and 14,424,206, were approved, respective of common shares of own issue and shares held in treasury, with no change in capital, upon capitalization of amounts recorded in Revenue Reserves – Statutory Reserve. The Extraordinary Stockholders’ Meeting – ESM held on July 27, 2018 approved the split in 50% the Company's shares of capital stock, and the process was approved by BACEN on October 31, 2018. The new shares were included in the share position on November 26, 2018. Thus, for better comparability, the number of shares presented in this item are affected by the split effect. The breakdown and change in shares of paid-in capital in the beginning and end of the period are shown below: Number Amount Common Preferred Total Residents in Brazil at 12/31/2017 3 ,299,073,506 1 ,116,291,341 4 ,415,364,847 6 5,482,470 Residents abroad at 12/31/2017 2 0,877,606 2 ,114,271,985 2 ,135,149,591 3 1,665,530 Shares of capital stock at 12/31/2017 3,319,951,112 3,230,563,326 6,550,514,438 97,148,000 Stock Split – ESM of 07/27/2018 – Approved on 10/31/2018 1,652,763,453 1 ,615,281,663 3,268,045,116 - (-) Cancellation of Shares – Meeting of the Board of Directors at February 22, 2018 ( 14,424,206) - (14,424,206) - Shares of capital stock at 12/31/2018 4,958,290,359 4 ,845,844,989 9 ,804,135,348 97,148,000 Residents in Brazil at 12/31/2018 4,928,076,320 1,609,055,166 6,537,131,486 64,775,651 Residents abroad at 12/31/2018 30,214,039 3,236,789,823 3 ,267,003,862 3 2,372,349 (1) Treasury shares at 12/31/2017 1 4,424,206 7 1,459,714 85,883,920 ( 2,742,767) Purchase of treasury shares - 13,100,000 13,100,000 (510,308) (-) Cancellation of Shares – Meeting of the Board of Directors at February 22, 2018 (14,424,206) - (14,424,206) 534,421 Result of delivery of treasure shares - ( 29,623,265) (29,623,265) 898,964 Stock Split – ESM of 07/27/2018 – Approved on 10/31/2018 - 2 8,677,977 28,677,977 - (1) Treasury shares at 12/31/2018 - 83,614,426 83,614,426 ( 1,819,690) Outstanding shares at 12/31/2018 4,958,290,359 4,762,230,563 9,720,520,922 (2) 4,958,290,359 4,738,655,417 9,696,945,776 Outstanding shares at 12/31/2017 (1) Own shares, purchased based on authorization of the Board of Directors, to be held in Treasury for subsequent cancellation or replacement in the market. (2) For better comparability, outstanding shares in the period of 12/31/2017 were adjusted by the split approved on October 31, 2018. Cost of shares purchased in the period, average cost of treasury shares and their market price in Reais: 01/01 to 12/31/2018 Cost / Market value Ordinárias Preferenciais Minimum - 37.45 Weighted average - 38.95 Maximum - 40.06 Treasury shares Average cost - 2 1.76 Market value at 12/31/2018 3 0.05 3 5.50 b) Dividends Shareholders are entitled mandatory minimum dividends in each fiscal year, corresponding to 25% of adjusted net income, as set forth in the Bylaws. Common and preferred shares participate equally of income distributed, after common shares have received dividends equal to the annual minimum priority dividend to be paid to preferred shares (R$ 0.022 non-cumulative per share). The calculation of the monthly advance of mandatory minimum dividend is based on the share position on the last day of the prior month, taking into consideration that the payment is made on the first business day of the subsequent month, amounting to R$ 0.015 per share. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.53 Note 12 – Stockholders' equity a) Capital Capital is represented by 9,804,135,348 book-entry shares with no par value, of which 4,958,290,359 are common and 4,845,844,989 are preferred shares with no voting rights, but with tag-along rights, in the event of disposal of control, to be included in a public offering of shares, so as to ensure the price equal to eighty per cent (80%) of the amount paid per share with voting rights in the controlling stake, as well as a dividend at least equal to that of the common shares. In Meetings of the Board of Directors held on 12/15/2017 and 02/22/2018, cancellations of 31,793,105 and 14,424,206, were approved, respective of common shares of own issue and shares held in treasury, with no change in capital, upon capitalization of amounts recorded in Revenue Reserves – Statutory Reserve. The Extraordinary Stockholders’ Meeting – ESM held on July 27, 2018 approved the split in 50% the Company's shares of capital stock, and the process was approved by BACEN on October 31, 2018. The new shares were included in the share position on November 26, 2018. Thus, for better comparability, the number of shares presented in this item are affected by the split effect. The breakdown and change in shares of paid-in capital in the beginning and end of the period are shown below: Number Amount Common Preferred Total Residents in Brazil at 12/31/2017 3 ,299,073,506 1 ,116,291,341 4 ,415,364,847 6 5,482,470 Residents abroad at 12/31/2017 2 0,877,606 2 ,114,271,985 2 ,135,149,591 3 1,665,530 Shares of capital stock at 12/31/2017 3,319,951,112 3,230,563,326 6,550,514,438 97,148,000 Stock Split – ESM of 07/27/2018 – Approved on 10/31/2018 1,652,763,453 1 ,615,281,663 3,268,045,116 - (-) Cancellation of Shares – Meeting of the Board of Directors at February 22, 2018 ( 14,424,206) - (14,424,206) - Shares of capital stock at 12/31/2018 4,958,290,359 4 ,845,844,989 9 ,804,135,348 97,148,000 Residents in Brazil at 12/31/2018 4,928,076,320 1,609,055,166 6,537,131,486 64,775,651 Residents abroad at 12/31/2018 30,214,039 3,236,789,823 3 ,267,003,862 3 2,372,349 (1) Treasury shares at 12/31/2017 1 4,424,206 7 1,459,714 85,883,920 ( 2,742,767) Purchase of treasury shares - 13,100,000 13,100,000 (510,308) (-) Cancellation of Shares – Meeting of the Board of Directors at February 22, 2018 (14,424,206) - (14,424,206) 534,421 Result of delivery of treasure shares - ( 29,623,265) (29,623,265) 898,964 Stock Split – ESM of 07/27/2018 – Approved on 10/31/2018 - 2 8,677,977 28,677,977 - (1) Treasury shares at 12/31/2018 - 83,614,426 83,614,426 ( 1,819,690) Outstanding shares at 12/31/2018 4,958,290,359 4,762,230,563 9,720,520,922 (2) 4,958,290,359 4,738,655,417 9,696,945,776 Outstanding shares at 12/31/2017 (1) Own shares, purchased based on authorization of the Board of Directors, to be held in Treasury for subsequent cancellation or replacement in the market. (2) For better comparability, outstanding shares in the period of 12/31/2017 were adjusted by the split approved on October 31, 2018. Cost of shares purchased in the period, average cost of treasury shares and their market price in Reais: 01/01 to 12/31/2018 Cost / Market value Ordinárias Preferenciais Minimum - 37.45 Weighted average - 38.95 Maximum - 40.06 Treasury shares Average cost - 2 1.76 Market value at 12/31/2018 3 0.05 3 5.50 b) Dividends Shareholders are entitled mandatory minimum dividends in each fiscal year, corresponding to 25% of adjusted net income, as set forth in the Bylaws. Common and preferred shares participate equally of income distributed, after common shares have received dividends equal to the annual minimum priority dividend to be paid to preferred shares (R$ 0.022 non-cumulative per share). The calculation of the monthly advance of mandatory minimum dividend is based on the share position on the last day of the prior month, taking into consideration that the payment is made on the first business day of the subsequent month, amounting to R$ 0.015 per share. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.53

I - Calculation Net income - ITAÚ UNIBANCO HOLDING 21,945,388 Adjustments: (-) Legal reserve (1,097,269) Dividend calculation basis 20,848,119 Mandatory dividend 5,212,030 22,437,426 Dividend and interest on capital – paid / provided for / identified II – Stockholders' compensation Gross value per Gross WTS Net share (R$) Paid / Prepaid 5 ,920,543 (121,619) 5 ,798,924 Dividends - 11 monthly installments paid in February to December 2018 0.0150 1 ,068,752 - 1 ,068,752 Dividends - paid on 08/30/2018 0.6240 4 ,041,001 - 4 ,041,001 Interest on capital - paid on 08/30/2018 0.1252 8 10,790 (121,619) 689,171 Provided for (recorded in Other liabilities – Social and statutory) 248,806 (15,453) 2 33,353 Dividends - 1 monthly installment paid on 01/02/2019 0.0150 145,783 - 1 45,783 Interest on capital - Credited on December 27, 2018 to be paid until April 30, 2019. 0.0106 103,023 (15,453) 87,570 Identified in Revenue Reserve In Stockholders’ Equity 1.8001 17,497,833 ( 1,092,684) 1 6,405,149 Total from 01/01 to 12/31/2018 2 3,667,182 ( 1,229,756) 2 2,437,426 Total from 01/01 to 12/31/2017 1 9,200,473 (1,643,211) 1 7,557,262 c) Capital and revenue reserves 12/31/2018 12/31/2017 Capital reserves 1,923,056 1,733,611 Premium on subscription of shares 283,512 283,512 Granted options recognized – Law No. 11,638, Share-based instruments and Share-based payment 1,638,439 1,448,994 Reserves from tax incentives and restatement of equity securities and other 1,105 1,105 Revenue reserves 37,121,745 34,494,495 Legal 10,077,204 8,927,234 Statutory 9,546,708 11,909,276 (*) Special Revenue Reserves 17,497,833 13,657,985 (*) Refers to Interest on capital and dividends provided for up to December 31 for each period, in compliance with BACEN Circular Letter nº 3,516, of July 21, 2011. d) Conciliation of net income and stockholders’ equity (Note 2b) Net income Stockholders’ equity 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 ITAÚ UNIBANCO HOLDING 21,945,388 2 1,108,466 1 31,863,081 128,507,940 Amortization of goodwill 92,790 9 7,485 (8,480) (102,452) Hedge of net investments in foreign operations 961,213 790,524 - - ITAÚ UNIBANCO HOLDING PRUDENTIAL 2 2,999,391 2 1,996,475 131,854,601 1 28,405,488 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.54 I - Calculation Net income - ITAÚ UNIBANCO HOLDING 21,945,388 Adjustments: (-) Legal reserve (1,097,269) Dividend calculation basis 20,848,119 Mandatory dividend 5,212,030 22,437,426 Dividend and interest on capital – paid / provided for / identified II – Stockholders' compensation Gross value per Gross WTS Net share (R$) Paid / Prepaid 5 ,920,543 (121,619) 5 ,798,924 Dividends - 11 monthly installments paid in February to December 2018 0.0150 1 ,068,752 - 1 ,068,752 Dividends - paid on 08/30/2018 0.6240 4 ,041,001 - 4 ,041,001 Interest on capital - paid on 08/30/2018 0.1252 8 10,790 (121,619) 689,171 Provided for (recorded in Other liabilities – Social and statutory) 248,806 (15,453) 2 33,353 Dividends - 1 monthly installment paid on 01/02/2019 0.0150 145,783 - 1 45,783 Interest on capital - Credited on December 27, 2018 to be paid until April 30, 2019. 0.0106 103,023 (15,453) 87,570 Identified in Revenue Reserve In Stockholders’ Equity 1.8001 17,497,833 ( 1,092,684) 1 6,405,149 Total from 01/01 to 12/31/2018 2 3,667,182 ( 1,229,756) 2 2,437,426 Total from 01/01 to 12/31/2017 1 9,200,473 (1,643,211) 1 7,557,262 c) Capital and revenue reserves 12/31/2018 12/31/2017 Capital reserves 1,923,056 1,733,611 Premium on subscription of shares 283,512 283,512 Granted options recognized – Law No. 11,638, Share-based instruments and Share-based payment 1,638,439 1,448,994 Reserves from tax incentives and restatement of equity securities and other 1,105 1,105 Revenue reserves 37,121,745 34,494,495 Legal 10,077,204 8,927,234 Statutory 9,546,708 11,909,276 (*) Special Revenue Reserves 17,497,833 13,657,985 (*) Refers to Interest on capital and dividends provided for up to December 31 for each period, in compliance with BACEN Circular Letter nº 3,516, of July 21, 2011. d) Conciliation of net income and stockholders’ equity (Note 2b) Net income Stockholders’ equity 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 ITAÚ UNIBANCO HOLDING 21,945,388 2 1,108,466 1 31,863,081 128,507,940 Amortization of goodwill 92,790 9 7,485 (8,480) (102,452) Hedge of net investments in foreign operations 961,213 790,524 - - ITAÚ UNIBANCO HOLDING PRUDENTIAL 2 2,999,391 2 1,996,475 131,854,601 1 28,405,488 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.54

e) Asset valuation adjustments 12/31/2018 12/31/2017 Available-for-sale securities 158,643 ( 46,605) Hedge cash flow (1,573,238) ( 1,407,664) Remeasurements in liabilities of post-employment benefits ( 1,001,152) ( 835,364) Foreign exchange variation on investments / Net investment hedge in foreign operations (102,763) 61,782 (*) (2,518,510) ( 2,227,851) Asset valuation adjustments (*) Net of tax effects. f) Non-controlling interests Stockholders’ Net Income equity 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Itaú CorpBanca (Note 2c) 10,249,165 10,164,233 (89,259) 357,339 Itaú CorpBanca Colombia S.A. (Note 2c) 1,218,728 1,122,133 (13,045) 17,749 Financeira Itaú CBD S.A. Crédito, Financiamento e Investimento 395,742 333,328 (97,914) (93,465) Luizacred S.A. Soc. de Crédito, Financiamento e Investimento 388,514 302,079 (78,755) (69,033) Banco Investcred Unibanco S.A. 23,994 20,691 (4,949) (858) Other 38 38 (3) (236) Total 12,276,181 11,942,502 (283,925) 211,496 g) Share-based payment ITAÚ UNIBANCO HOLDING and its subsidiaries have share-based payment plans aimed at involving its management members and employees in the medium and long term corporate development process. The grant of these benefits are only made in years in which there are sufficient profits to enable the distribution of mandatory dividends, limiting the maximum dilutive effect to 0.5% of the total shares held by the controlling and minority stockholders at the balance sheet date. These programs are settled through the delivery of ITUB4 treasury shares to stockholders. The Extraordinary Stockholders’ Meeting – ESM held on July 27, 2018 approved the split in 50% the Company's shares of capital stock, and the process was approved by BACEN on October 31, 2018. The new shares were included in the share position on November 26, 2018. Thus, for better comparability, the number of shares presented in this item are affected by the split effect. Expenses on stock-based payment plans are presented in the table below: 01/01 a 01/01 a 12/31/2018 12/31/2017 Partner Plan (225,577) (234,119) Share-based plan (377,151) (302,343) Total (602,728) (536,461) Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.55 e) Asset valuation adjustments 12/31/2018 12/31/2017 Available-for-sale securities 158,643 ( 46,605) Hedge cash flow (1,573,238) ( 1,407,664) Remeasurements in liabilities of post-employment benefits ( 1,001,152) ( 835,364) Foreign exchange variation on investments / Net investment hedge in foreign operations (102,763) 61,782 (*) (2,518,510) ( 2,227,851) Asset valuation adjustments (*) Net of tax effects. f) Non-controlling interests Stockholders’ Net Income equity 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Itaú CorpBanca (Note 2c) 10,249,165 10,164,233 (89,259) 357,339 Itaú CorpBanca Colombia S.A. (Note 2c) 1,218,728 1,122,133 (13,045) 17,749 Financeira Itaú CBD S.A. Crédito, Financiamento e Investimento 395,742 333,328 (97,914) (93,465) Luizacred S.A. Soc. de Crédito, Financiamento e Investimento 388,514 302,079 (78,755) (69,033) Banco Investcred Unibanco S.A. 23,994 20,691 (4,949) (858) Other 38 38 (3) (236) Total 12,276,181 11,942,502 (283,925) 211,496 g) Share-based payment ITAÚ UNIBANCO HOLDING and its subsidiaries have share-based payment plans aimed at involving its management members and employees in the medium and long term corporate development process. The grant of these benefits are only made in years in which there are sufficient profits to enable the distribution of mandatory dividends, limiting the maximum dilutive effect to 0.5% of the total shares held by the controlling and minority stockholders at the balance sheet date. These programs are settled through the delivery of ITUB4 treasury shares to stockholders. The Extraordinary Stockholders’ Meeting – ESM held on July 27, 2018 approved the split in 50% the Company's shares of capital stock, and the process was approved by BACEN on October 31, 2018. The new shares were included in the share position on November 26, 2018. Thus, for better comparability, the number of shares presented in this item are affected by the split effect. Expenses on stock-based payment plans are presented in the table below: 01/01 a 01/01 a 12/31/2018 12/31/2017 Partner Plan (225,577) (234,119) Share-based plan (377,151) (302,343) Total (602,728) (536,461) Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.55

l – Partner Plan The employees and management members of ITAÚ UNIBANCO HOLDING invest a percentage of their bonus to acquire shares and share-based instruments. Accordingly, the ownership of these shares should be held by the beneficiaries for a period from three to five years, counted from the initial investment, and are thus subject to market price variation. After complying with the suspensive conditions set forth in the program, beneficiaries will be entitled to receive shares as consideration, in accordance with the numbers of shares provided for in the program regulation. The acquisition prices of shares and share-based Instruments are established every six months and are equivalent to the average of share quotation in the 30 days prior to the determination of the acquisition price, which is performed on the seventh business day prior to the remuneration grant date. The fair value of the shares as consideration is the market price at the grant date, less expected dividends. Changes in the Partner Program 01/01 to 01/01 to 12/31/2018 12/31/2017 Quantity Quantity Opening balance 51,074,441 53,193,569 New granted 9,912,356 10,562,936 Cancelled (11,597,420) (11,284,577) Exercised (518,195) (1,397,487) Closing balance 48,871,182 51,074,441 Weighted average of remaining contractual life (years) 2.52 2.46 Market value weighted average (R$) 26.22 21.55 II- Variable Compensation In this plan, 50% of variable compensation of management members should be paid in cash and fifty percent (50%) should be paid in shares for a period of three years. Shares are delivered on a deferred basis, of which one-third (1/3) per year, will be contingent upon the executive’s remaining with the institution. The deferred unpaid portions may be reversed proportionally to the significant reduction of the recurring income realized or the negative income for the period. Management members become eligible for the receipt of these benefits according to individual performance, business performance or both. The benefit amount is established according to the activities of each management member that should meet at least the performance and conduct requirements. The fair value of the share is the market price at its grant date. Change in variable compensation in shares 01/01 to 01/01 to 12/31/2018 12/31/2017 Quantity Quantity Opening balance 31,229,973 36,809,109 New 10,552,225 12,835,324 Delivered (16,611,521) (18,072,947) Cancelled (154,532) (341,513) Closing balance 25,016,145 31,229,973 Market value weighted average (R$) 34.04 25.49 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.56 l – Partner Plan The employees and management members of ITAÚ UNIBANCO HOLDING invest a percentage of their bonus to acquire shares and share-based instruments. Accordingly, the ownership of these shares should be held by the beneficiaries for a period from three to five years, counted from the initial investment, and are thus subject to market price variation. After complying with the suspensive conditions set forth in the program, beneficiaries will be entitled to receive shares as consideration, in accordance with the numbers of shares provided for in the program regulation. The acquisition prices of shares and share-based Instruments are established every six months and are equivalent to the average of share quotation in the 30 days prior to the determination of the acquisition price, which is performed on the seventh business day prior to the remuneration grant date. The fair value of the shares as consideration is the market price at the grant date, less expected dividends. Changes in the Partner Program 01/01 to 01/01 to 12/31/2018 12/31/2017 Quantity Quantity Opening balance 51,074,441 53,193,569 New granted 9,912,356 10,562,936 Cancelled (11,597,420) (11,284,577) Exercised (518,195) (1,397,487) Closing balance 48,871,182 51,074,441 Weighted average of remaining contractual life (years) 2.52 2.46 Market value weighted average (R$) 26.22 21.55 II- Variable Compensation In this plan, 50% of variable compensation of management members should be paid in cash and fifty percent (50%) should be paid in shares for a period of three years. Shares are delivered on a deferred basis, of which one-third (1/3) per year, will be contingent upon the executive’s remaining with the institution. The deferred unpaid portions may be reversed proportionally to the significant reduction of the recurring income realized or the negative income for the period. Management members become eligible for the receipt of these benefits according to individual performance, business performance or both. The benefit amount is established according to the activities of each management member that should meet at least the performance and conduct requirements. The fair value of the share is the market price at its grant date. Change in variable compensation in shares 01/01 to 01/01 to 12/31/2018 12/31/2017 Quantity Quantity Opening balance 31,229,973 36,809,109 New 10,552,225 12,835,324 Delivered (16,611,521) (18,072,947) Cancelled (154,532) (341,513) Closing balance 25,016,145 31,229,973 Market value weighted average (R$) 34.04 25.49 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.56

Ill – Stock Option Plan (Simple Options) ITAÚ UNIBANCO HOLDING has a Stock Option Plan (“Simple Options”), which was discontinued, and only exercisable options remain. Simple options have the following characteristics: a) Exercise price: calculated based on the average prices of shares in the three months of the year prior to the grant date. The prices determined will be inflation-adjusted to the last business day of the month prior to the option exercise date based on IGP-M or, in its absence, on an index to be determined internally, and should be paid within the period in force for the settlement of operations on B3. b) Vesting period: determined upon issue, from one to seven years, counted from the grant date. The vesting period is normally determined at five years. Summary of changes in the Simple options plan 01/01 to 12/31/2018 01/01 to 12/31/2017 Weighted Weighted Quantity average Quantity average exercise price exercise price Opening balance 24,514,359 25.21 57,050,259 24.63 Options exercisable at the end of the period 24,514,359 25.21 35,160,265 27.32 Options outstanding but not exercisable 21,889,994 20.30 Options: (*) Canceled / Forfeited (3 52,085) 29.29 (1 ,807,091) 27.41 Exercised (21,072,675) 28.26 (30,728,809) 23.72 Closing balance 3 ,089,599 22.11 2 4,514,359 25.21 Options exercisable at the end of the period 3,089,599 22.11 2 4,514,359 25.21 Range of exercise prices 14.47 - 29.51 14.47 - 27.54 Weighted average of the remaining contractual life (in years) 0.99 1 .28 Market value weighted average (R$) 33.98 28.04 (*) Refers to non-exercise based on the beneficiary’s decision. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.57 Ill – Stock Option Plan (Simple Options) ITAÚ UNIBANCO HOLDING has a Stock Option Plan (“Simple Options”), which was discontinued, and only exercisable options remain. Simple options have the following characteristics: a) Exercise price: calculated based on the average prices of shares in the three months of the year prior to the grant date. The prices determined will be inflation-adjusted to the last business day of the month prior to the option exercise date based on IGP-M or, in its absence, on an index to be determined internally, and should be paid within the period in force for the settlement of operations on B3. b) Vesting period: determined upon issue, from one to seven years, counted from the grant date. The vesting period is normally determined at five years. Summary of changes in the Simple options plan 01/01 to 12/31/2018 01/01 to 12/31/2017 Weighted Weighted Quantity average Quantity average exercise price exercise price Opening balance 24,514,359 25.21 57,050,259 24.63 Options exercisable at the end of the period 24,514,359 25.21 35,160,265 27.32 Options outstanding but not exercisable 21,889,994 20.30 Options: (*) Canceled / Forfeited (3 52,085) 29.29 (1 ,807,091) 27.41 Exercised (21,072,675) 28.26 (30,728,809) 23.72 Closing balance 3 ,089,599 22.11 2 4,514,359 25.21 Options exercisable at the end of the period 3,089,599 22.11 2 4,514,359 25.21 Range of exercise prices 14.47 - 29.51 14.47 - 27.54 Weighted average of the remaining contractual life (in years) 0.99 1 .28 Market value weighted average (R$) 33.98 28.04 (*) Refers to non-exercise based on the beneficiary’s decision. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.57

Note 13 – Related parties Transactions between related parties are carried out at amounts, terms and average rates in accordance with normal market practices during the period, as well as under reciprocal conditions. Transactions between companies and investment funds, included in consolidation (note 2.b), were eliminated and do not have effects on the consolidated statements. The main unconsolidated related parties are as follows: · Itaú Unibanco Participações S.A. (IUPAR), Companhia E.Johnston de Participações S.A. (shareholder of IUPAR) and ITAÚSA, direct and indirect shareholders of ITAÚ UNIBANCO HOLDING; · The non-financial subsidiaries and joint-controlled entities of ITAÚSA, specially: Itautec S.A., Duratex S.A., Itaúsa Empreendimentos S.A. and Alpargatas S.A.; · Fundação Itaú Unibanco - Previdência Complementar and FUNBEP – Fundo de Pensão Multipatrocinado, closed-end supplementary pension entities, that administer retirement plans sponsored by ITAÚ UNIBANCO HOLDING CONSOLIDATED, created exclusively for employees; · Domestic investments, specially Itauseg Participações S.A., XP Investimentos S.A., Provar Negócios de Varejo Ltda., Itaú Consult. de Vrs Mobiliários e Particip. S.A., ITB Holding Brasil Participações Ltda., BSF Holding S.A., and foreign investments BICSA Holdings Ltd.; · Itaú Seguros S.A., Itaú Vida e Previdência S.A. and Cia. Itaú de Capitalização, companies in the insurance, pension plan and capitalization sectors; · Foundations and Institutes maintained by ITAÚ UNIBANCO HOLDING PRUDENTIAL’s donations and by the proceedings generated by its assets to accomplish its purposed, as well as to maintain the operational and administrative structure: Fundação Itaú Social – manages the “Itaú Social Program”, which aims at coordinating the organization’s role in projects of interest to the community by supporting or developing social, scientific and cultural projects, mainly in the elementary education and health areas and supports projects or initiatives in progress, supported or sponsored by entities qualified to work in the ”Programa Itaú Social” (Itaú Social Program). Instituto Itaú Cultural – promotes and disseminates Brazilian culture in the country and abroad. Instituto Unibanco – supports projects focused on social assistance, particularly education, culture, promotion of integration to labor market, and environmental protection, on a direct and/or supplementary basis, through the civil society’s institutions. Instituto Unibanco de Cinema – promotes culture in general and provides access of low-income population to cinematography, videography and similar productions, for which it should maintain movie theaters and movie clubs owned or managed by itself, and theaters to screen films, videos, video-laser discs and other related activities, as well as to screen and divulge movies in general, especially those produced in Brazil. Associação Itaú Viver Mais – provides social services for the welfare of beneficiaries, in the way and under conditions established by its Internal Rules, and according to the funds available. These services may include, among others, the promotion of cultural, educational, sports, entertainment and health care activities. · Associação Cubo Coworking Itaú – partner entity of ITAÚ UNIBANCO HOLDING PRUDENTIAL which purpose is to encourage and promote: discussions, the development of alternative and innovative technologies, business models and solutions; the production and dissemination of the resulting technical and scientific knowledge; the attraction and gathering of new information technology talents that may be characterized as startups; research, development and establishment of ecosystems for entrepreneurship and startups. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.58 Note 13 – Related parties Transactions between related parties are carried out at amounts, terms and average rates in accordance with normal market practices during the period, as well as under reciprocal conditions. Transactions between companies and investment funds, included in consolidation (note 2.b), were eliminated and do not have effects on the consolidated statements. The main unconsolidated related parties are as follows: · Itaú Unibanco Participações S.A. (IUPAR), Companhia E.Johnston de Participações S.A. (shareholder of IUPAR) and ITAÚSA, direct and indirect shareholders of ITAÚ UNIBANCO HOLDING; · The non-financial subsidiaries and joint-controlled entities of ITAÚSA, specially: Itautec S.A., Duratex S.A., Itaúsa Empreendimentos S.A. and Alpargatas S.A.; · Fundação Itaú Unibanco - Previdência Complementar and FUNBEP – Fundo de Pensão Multipatrocinado, closed-end supplementary pension entities, that administer retirement plans sponsored by ITAÚ UNIBANCO HOLDING CONSOLIDATED, created exclusively for employees; · Domestic investments, specially Itauseg Participações S.A., XP Investimentos S.A., Provar Negócios de Varejo Ltda., Itaú Consult. de Vrs Mobiliários e Particip. S.A., ITB Holding Brasil Participações Ltda., BSF Holding S.A., and foreign investments BICSA Holdings Ltd.; · Itaú Seguros S.A., Itaú Vida e Previdência S.A. and Cia. Itaú de Capitalização, companies in the insurance, pension plan and capitalization sectors; · Foundations and Institutes maintained by ITAÚ UNIBANCO HOLDING PRUDENTIAL’s donations and by the proceedings generated by its assets to accomplish its purposed, as well as to maintain the operational and administrative structure: Fundação Itaú Social – manages the “Itaú Social Program”, which aims at coordinating the organization’s role in projects of interest to the community by supporting or developing social, scientific and cultural projects, mainly in the elementary education and health areas and supports projects or initiatives in progress, supported or sponsored by entities qualified to work in the ”Programa Itaú Social” (Itaú Social Program). Instituto Itaú Cultural – promotes and disseminates Brazilian culture in the country and abroad. Instituto Unibanco – supports projects focused on social assistance, particularly education, culture, promotion of integration to labor market, and environmental protection, on a direct and/or supplementary basis, through the civil society’s institutions. Instituto Unibanco de Cinema – promotes culture in general and provides access of low-income population to cinematography, videography and similar productions, for which it should maintain movie theaters and movie clubs owned or managed by itself, and theaters to screen films, videos, video-laser discs and other related activities, as well as to screen and divulge movies in general, especially those produced in Brazil. Associação Itaú Viver Mais – provides social services for the welfare of beneficiaries, in the way and under conditions established by its Internal Rules, and according to the funds available. These services may include, among others, the promotion of cultural, educational, sports, entertainment and health care activities. · Associação Cubo Coworking Itaú – partner entity of ITAÚ UNIBANCO HOLDING PRUDENTIAL which purpose is to encourage and promote: discussions, the development of alternative and innovative technologies, business models and solutions; the production and dissemination of the resulting technical and scientific knowledge; the attraction and gathering of new information technology talents that may be characterized as startups; research, development and establishment of ecosystems for entrepreneurship and startups. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.58

a) Transactions with related parties: ITAÚ UNIBANCO HOLDING PRUDENTIAL Assets / (liabilities) Revenue / (expense) Annual rate 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Securities and derivative financial instruments (Asset and liabilities position) - - (132,769) 7 Other - - (132,769) 7 Loan operations 145,961 98,643 187,515 5,937 2.5% to 6% / SELIC + 2.35% / CDI + 3.15% Alpargatas S.A. 49,195 96,381 2,773 5,738 2.80% Itaú Chile Administradora General de Fondos S.A. 1,845 2,260 435 198 Other 113% CDI 94,921 2 184,307 1 Foreign exchange portfolio (Asset and liabilities position) 6,457 9,556 5,447 9,252 Itaú Europa Luxembourg S.A. 6,457 9,556 5,447 9,252 Securities sold under repurchase agreements ( 416,541) (1,935,434) (62,882) (208,831) Itauseg Participações S.A. - (1,032,087) (13,441) (79,619) 100% SELIC Itaú Rent Administração e Participações Ltda. (117,511) ( 260,109) (16,536) (19,518) 100% SELIC Provar Negócios de Varejo Ltda. ( 29) (204,989) (12,607) (42,060) IGA Participações 100% SELIC (184,717) ( 173,579) (11,138) (15,801) 50.01% to 100.15% CDI Other ( 114,284) (264,670) (9,160) (51,833) Deposits ( 7,816,560) (2,528,240) (232,036) (40,640) Itauseg Participações S.A. 100% DI (3,372,221) (174,479) (98,849) (483) 100% DI Itaú Corretora de Seguros S.A. ( 398,845) - (16,488) - 0.30% to 2.78% Itaú Chile Compañia de Seguros de Vida S.A. (11,159) ( 76,822) (937) (2,976) Itaúsa Europa - Investimentos SGPS, Unipessoal, Lda 100% SELIC (24,372) ( 292,085) (698) (100) 3% Itaú Europa Luxembourg S.A. ( 50,494) (177,036) (2,796) (4,162) 3.53% BICSA Holdings Ltd. (1,371,622) (1,167,062) (33,582) (14,175) Provar Negócios de Varejo Ltda. 100% DI ( 339,229) (141,451) (8,111) (3,927) 100% DI ITB Holding Brasil Participações Ltda. ( 446,445) - (19,063) - 100% DI Kinea Investimentos Ltda. ( 216,833) ( 97,022) (7,955) (2,540) Itaú Asia Securities Ltd. 3% (74,890) (60,118) - (754) 100% DI Itaú Rent Administração e Participações Ltda. ( 620,488) (52,890) (10,125) (2,857) 100% DI Investimentos Bemge S.A. ( 142,275) ( 8) (1,643) (1) 75% to 96% CDI / 100% to 115% DI Other ( 747,687) ( 289,267) (31,789) (8,665) Amounts receivable from (payable to) related companies / Banking (109,239) (130,538) 1,668,686 568,967 service fees (expenses) Itaú Seguros S.A. (6,276) ( 10,343) 406,637 459,980 Fundação Itaú Unibanco - Previdência Complementar ( 98,214) ( 106,134) 50,969 47,265 Itaú Vida e Previdência S.A. 14,142 12,767 1,283,497 47,870 Other ( 18,891) ( 26,828) (72,417) 13,852 Negotiation and intermediation of securities (Asset and liabilities position) - (251) - - Jasper International Investment LLC - (251) - - Rent revenues (expenses) - - (304,852) (333,226) Itaú Rent Administração e Participações Ltda. - - (166,773) (164,578) Fundação Itaú Unibanco - Previdência Complementar - - (36,075) (48,601) Itaú Seguros S.A. - - (39,132) (39,821) Other - - (62,872) (80,226) Sponsorship expenses - - (31,050) (9,500) Associação Cubo Coworking Itaú - - (31,050) (9,500) Donation expenses - - (62,864) (57,077) Instituto Itaú Cultural - - (61,944) (56,157) Associação Itaú Viver Mais - - (920) (920) b) Compensation and Benefits of Key Management Personnel Compensation and benefits attributed to Management Members, members of the Audit Committee and the Board of Directors of ITAÚ UNIBANCO HOLDING PRUDENTIAL in the period correspond to: 01/01 to 01/01 to 12/31/2018 12/31/2017 Fees (477,557) (420,556) Profit sharing (250,665) (237,650) Post-employment benefits (8,629) (9,079) Granting of the Share-based payment (211,977) (219,568) (948,828) (886,853) Total Total amounts related to stock-based compensation plan, personnel expenses and post-employment benefits is detailed in Notes 12g II, 9f and 15, respectively. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.59 a) Transactions with related parties: ITAÚ UNIBANCO HOLDING PRUDENTIAL Assets / (liabilities) Revenue / (expense) Annual rate 01/01 to 01/01 to 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Securities and derivative financial instruments (Asset and liabilities position) - - (132,769) 7 Other - - (132,769) 7 Loan operations 145,961 98,643 187,515 5,937 2.5% to 6% / SELIC + 2.35% / CDI + 3.15% Alpargatas S.A. 49,195 96,381 2,773 5,738 2.80% Itaú Chile Administradora General de Fondos S.A. 1,845 2,260 435 198 Other 113% CDI 94,921 2 184,307 1 Foreign exchange portfolio (Asset and liabilities position) 6,457 9,556 5,447 9,252 Itaú Europa Luxembourg S.A. 6,457 9,556 5,447 9,252 Securities sold under repurchase agreements ( 416,541) (1,935,434) (62,882) (208,831) Itauseg Participações S.A. - (1,032,087) (13,441) (79,619) 100% SELIC Itaú Rent Administração e Participações Ltda. (117,511) ( 260,109) (16,536) (19,518) 100% SELIC Provar Negócios de Varejo Ltda. ( 29) (204,989) (12,607) (42,060) IGA Participações 100% SELIC (184,717) ( 173,579) (11,138) (15,801) 50.01% to 100.15% CDI Other ( 114,284) (264,670) (9,160) (51,833) Deposits ( 7,816,560) (2,528,240) (232,036) (40,640) Itauseg Participações S.A. 100% DI (3,372,221) (174,479) (98,849) (483) 100% DI Itaú Corretora de Seguros S.A. ( 398,845) - (16,488) - 0.30% to 2.78% Itaú Chile Compañia de Seguros de Vida S.A. (11,159) ( 76,822) (937) (2,976) Itaúsa Europa - Investimentos SGPS, Unipessoal, Lda 100% SELIC (24,372) ( 292,085) (698) (100) 3% Itaú Europa Luxembourg S.A. ( 50,494) (177,036) (2,796) (4,162) 3.53% BICSA Holdings Ltd. (1,371,622) (1,167,062) (33,582) (14,175) Provar Negócios de Varejo Ltda. 100% DI ( 339,229) (141,451) (8,111) (3,927) 100% DI ITB Holding Brasil Participações Ltda. ( 446,445) - (19,063) - 100% DI Kinea Investimentos Ltda. ( 216,833) ( 97,022) (7,955) (2,540) Itaú Asia Securities Ltd. 3% (74,890) (60,118) - (754) 100% DI Itaú Rent Administração e Participações Ltda. ( 620,488) (52,890) (10,125) (2,857) 100% DI Investimentos Bemge S.A. ( 142,275) ( 8) (1,643) (1) 75% to 96% CDI / 100% to 115% DI Other ( 747,687) ( 289,267) (31,789) (8,665) Amounts receivable from (payable to) related companies / Banking (109,239) (130,538) 1,668,686 568,967 service fees (expenses) Itaú Seguros S.A. (6,276) ( 10,343) 406,637 459,980 Fundação Itaú Unibanco - Previdência Complementar ( 98,214) ( 106,134) 50,969 47,265 Itaú Vida e Previdência S.A. 14,142 12,767 1,283,497 47,870 Other ( 18,891) ( 26,828) (72,417) 13,852 Negotiation and intermediation of securities (Asset and liabilities position) - (251) - - Jasper International Investment LLC - (251) - - Rent revenues (expenses) - - (304,852) (333,226) Itaú Rent Administração e Participações Ltda. - - (166,773) (164,578) Fundação Itaú Unibanco - Previdência Complementar - - (36,075) (48,601) Itaú Seguros S.A. - - (39,132) (39,821) Other - - (62,872) (80,226) Sponsorship expenses - - (31,050) (9,500) Associação Cubo Coworking Itaú - - (31,050) (9,500) Donation expenses - - (62,864) (57,077) Instituto Itaú Cultural - - (61,944) (56,157) Associação Itaú Viver Mais - - (920) (920) b) Compensation and Benefits of Key Management Personnel Compensation and benefits attributed to Management Members, members of the Audit Committee and the Board of Directors of ITAÚ UNIBANCO HOLDING PRUDENTIAL in the period correspond to: 01/01 to 01/01 to 12/31/2018 12/31/2017 Fees (477,557) (420,556) Profit sharing (250,665) (237,650) Post-employment benefits (8,629) (9,079) Granting of the Share-based payment (211,977) (219,568) (948,828) (886,853) Total Total amounts related to stock-based compensation plan, personnel expenses and post-employment benefits is detailed in Notes 12g II, 9f and 15, respectively. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.59

Note 14 - Market value In cases where market prices are not available, market value are based on estimates using discounted cash flows or other valuation techniques. These techniques are significantly affected by the assumptions adopted, including the discount rate and estimate of future cash flows. The estimated market value achieved through these techniques cannot be substantiated by comparison with independent markets and, in many cases, it cannot be realized in the immediate settlement of the instrument. The following table summarizes the carrying and estimated market value for financial instruments: 12/31/2018 12/31/2017 Estimated Market Estimated Market Book Value Book Value Value Value Interbank investments (a)(b) 26,414,945 26,505,058 29,048,473 29,112,201 Securities and derivative financial instruments (c) Adjustment of available-for-sale securities 94,785,609 94,785,609 94,063,659 94,063,659 Adjustment of held-to-maturity securities 35,699,025 35,963,785 32,057,694 32,653,737 23,461,364 23,461,364 22,656,495 22,656,495 Derivative financial instruments - Assets (c) Loan, lease and other credit operations (d) 498,222,934 504,597,146 456,288,130 462,661,791 Deposits (b) 471,640,978 471,702,193 405,858,963 405,885,949 343,623,423 343,623,423 325,798,899 325,798,899 Deposits received under securities repurchase agreements (a) Funds from acceptance and issuance of securities (b) 111,565,922 111,670,717 107,581,024 107,799,276 Borrowings and Onlendings (b) 67,947,165 68,084,596 63,441,020 63,771,257 27,484,865 27,484,865 26,452,616 26,452,616 Derivative financial instruments - Liabilities (c) 49,312,724 49,546,979 52,695,875 53,855,629 Subordinated debt (b) The methods and assumptions adopted to estimate the market value are defined below: a) Securities purchased under agreements to resell, which compose the balance of Interbank Investments, and Securities under repurchase agreements - The carrying amounts for these instruments approximate their market values. b) Interbank deposits, which compose the balance of Interbank Investments, Deposits, Funds from Acceptance and Issuance of Securities, Borrowings and Onlending and Subordinate Debt – they are calculated by discounting estimated cash flows at market interest rates. c) Securities and Derivatives - Under usual conditions, the prices quoted in the market are the best indicators of market values of these financial instruments. However, not all instruments have liquidity or quoted market prices and, in such cases, it is necessary to adopt present value estimates and other pricing techniques to establish their market value. In the absence of the prices quoted by the Brazilian Financial and Capital Markets Association (ANBIMA), the market values of government securities are determined based on the interest rates provided by brokers. The market values of corporate debt securities are calculated by discounting estimated cash flows at market interest rates. The market values of shares are computed based on their prices quoted in the market. The market values of derivative financial instruments were determined as follows: · Swaps: Their cash flows are discounted to present value based on yield curves that reflect the appropriate risk factors, drawn mainly based on the exchange price of derivatives at B3, of Brazilian government securities in the secondary market or derivatives and securities traded abroad. These yield curves may be used to obtain the market value of currency swaps, interest rate swaps and swaps based on other risk factors (commodities, stock exchange indices, etc.) · Futures and Forwards: Quotations on exchanges or using criteria identical to those applied to swaps. · Options: determined based on mathematical models, such as Black & Scholes, using data, in general from Bloomberg, of implicit volatility, interest rate yield curve and market value of the underlying asset. Current market prices of options are used to compute the implicit volatilities. · Credit Risk: inversely related to the probability of default (PD) in a financial instrument subject to credit risk. The process of adjusting the market price of these spreads is based on the differences between the yield curves with and without credit risk. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.60 Note 14 - Market value In cases where market prices are not available, market value are based on estimates using discounted cash flows or other valuation techniques. These techniques are significantly affected by the assumptions adopted, including the discount rate and estimate of future cash flows. The estimated market value achieved through these techniques cannot be substantiated by comparison with independent markets and, in many cases, it cannot be realized in the immediate settlement of the instrument. The following table summarizes the carrying and estimated market value for financial instruments: 12/31/2018 12/31/2017 Estimated Market Estimated Market Book Value Book Value Value Value Interbank investments (a)(b) 26,414,945 26,505,058 29,048,473 29,112,201 Securities and derivative financial instruments (c) Adjustment of available-for-sale securities 94,785,609 94,785,609 94,063,659 94,063,659 Adjustment of held-to-maturity securities 35,699,025 35,963,785 32,057,694 32,653,737 23,461,364 23,461,364 22,656,495 22,656,495 Derivative financial instruments - Assets (c) Loan, lease and other credit operations (d) 498,222,934 504,597,146 456,288,130 462,661,791 Deposits (b) 471,640,978 471,702,193 405,858,963 405,885,949 343,623,423 343,623,423 325,798,899 325,798,899 Deposits received under securities repurchase agreements (a) Funds from acceptance and issuance of securities (b) 111,565,922 111,670,717 107,581,024 107,799,276 Borrowings and Onlendings (b) 67,947,165 68,084,596 63,441,020 63,771,257 27,484,865 27,484,865 26,452,616 26,452,616 Derivative financial instruments - Liabilities (c) 49,312,724 49,546,979 52,695,875 53,855,629 Subordinated debt (b) The methods and assumptions adopted to estimate the market value are defined below: a) Securities purchased under agreements to resell, which compose the balance of Interbank Investments, and Securities under repurchase agreements - The carrying amounts for these instruments approximate their market values. b) Interbank deposits, which compose the balance of Interbank Investments, Deposits, Funds from Acceptance and Issuance of Securities, Borrowings and Onlending and Subordinate Debt – they are calculated by discounting estimated cash flows at market interest rates. c) Securities and Derivatives - Under usual conditions, the prices quoted in the market are the best indicators of market values of these financial instruments. However, not all instruments have liquidity or quoted market prices and, in such cases, it is necessary to adopt present value estimates and other pricing techniques to establish their market value. In the absence of the prices quoted by the Brazilian Financial and Capital Markets Association (ANBIMA), the market values of government securities are determined based on the interest rates provided by brokers. The market values of corporate debt securities are calculated by discounting estimated cash flows at market interest rates. The market values of shares are computed based on their prices quoted in the market. The market values of derivative financial instruments were determined as follows: · Swaps: Their cash flows are discounted to present value based on yield curves that reflect the appropriate risk factors, drawn mainly based on the exchange price of derivatives at B3, of Brazilian government securities in the secondary market or derivatives and securities traded abroad. These yield curves may be used to obtain the market value of currency swaps, interest rate swaps and swaps based on other risk factors (commodities, stock exchange indices, etc.) · Futures and Forwards: Quotations on exchanges or using criteria identical to those applied to swaps. · Options: determined based on mathematical models, such as Black & Scholes, using data, in general from Bloomberg, of implicit volatility, interest rate yield curve and market value of the underlying asset. Current market prices of options are used to compute the implicit volatilities. · Credit Risk: inversely related to the probability of default (PD) in a financial instrument subject to credit risk. The process of adjusting the market price of these spreads is based on the differences between the yield curves with and without credit risk. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.60

d) Loan operations and lease operations and other credits – Market value is estimated based on groups of loans with similar financial and risk characteristics, using valuation models. The market value of fixed-rate loans was determined by discounting estimated cash flows, applying current interest rates close of similar loans. For the majority of loans at floating rate, the carrying amount was considered close to their market value. The market value of loan and lease operations not overdue was calculated by discounting the expected payments of principal and interest through maturity, at the aforementioned rates. The market value of overdue loan and lease transactions was based on the discount of estimated cash flows, using a rate proportional to the risk associated with the estimated cash flows, or on the underlying collateral. The assumptions related to cash flows and discount rates are determined using information available in the market and information specific of the debtor. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.61 d) Loan operations and lease operations and other credits – Market value is estimated based on groups of loans with similar financial and risk characteristics, using valuation models. The market value of fixed-rate loans was determined by discounting estimated cash flows, applying current interest rates close of similar loans. For the majority of loans at floating rate, the carrying amount was considered close to their market value. The market value of loan and lease operations not overdue was calculated by discounting the expected payments of principal and interest through maturity, at the aforementioned rates. The market value of overdue loan and lease transactions was based on the discount of estimated cash flows, using a rate proportional to the risk associated with the estimated cash flows, or on the underlying collateral. The assumptions related to cash flows and discount rates are determined using information available in the market and information specific of the debtor. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.61

Note 15 – Post-employment benefits ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its subsidiaries, sponsors retirement plans to its employees. Retirement plans are managed by Closed-end Private Pension Entities (EFPC) and are closed to new adhesions. These entities have an independent structure and manage their plans according to the characteristics of their regulations. There are three types of retirement plans: • Defined Benefit Plans (BD): plans which scheduled benefits have their value established in advance, based on salaries and/or length of service of employees, and its cost is actuarially determined; • Defined Contribution Plans (CD): are those plans which scheduled benefits have their value permanently adjusted to the investments balance, kept in favor of the participant, including in the benefit concession phase, considering net proceedings of its investment, amounts contributed and benefits paid; and • Variable Contribution Plans (CV): in this type of plan, scheduled benefits present a combination of characteristics of defined contribution and defined benefit modalities, and the benefit is actuarially determined based on the investment accumulated by the participant on the eligibility date. Below is a list of benefit plans and their modalities: Entity Benefit plan Modality Supplementary retirement plan Supplementary Retirement Plan – Flexible Premium Annuity Franprev benefit plan 002 benefit plan Prebeg benefit plan UBB PREV defined benefit plan Defined Benefit Benefit Plan II Itaulam basic plan Fundação Itaú Unibanco - Previdência Itaú Defined Benefit Plan Complementar - FIU REDECARD Retirement Plan ITAUCARD Retirement Defined Benefit Plan Itaubanco Defined Contribution Plan Itaubank Retirement Plan Defined Contribution REDECARD Pension Plan Unibanco Pension Plan Itaulam Supplementary Plan Itaú Defined Contribution Plan Variable Contribution REDECARD Retirement Plan ITAUCARD Supplementary Retirement Plan FUNBEP Fundo de Pensão Funbep I Benefit Plan Defined Benefit Multipatrocinado Funbep II Benefit Plan Variable Contribution The modality of Defined Contribution plans have funds composed by the portions of sponsors’ contributions not yet included in the participant’s account balance due to loss of eligibility to the benefit, as well as of resources arising from the migration of retirement plans in defined benefit modality. The fund is used for future contributions to the individual participants' accounts, according to the rules of the respective benefit plan regulation. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.62 Note 15 – Post-employment benefits ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its subsidiaries, sponsors retirement plans to its employees. Retirement plans are managed by Closed-end Private Pension Entities (EFPC) and are closed to new adhesions. These entities have an independent structure and manage their plans according to the characteristics of their regulations. There are three types of retirement plans: • Defined Benefit Plans (BD): plans which scheduled benefits have their value established in advance, based on salaries and/or length of service of employees, and its cost is actuarially determined; • Defined Contribution Plans (CD): are those plans which scheduled benefits have their value permanently adjusted to the investments balance, kept in favor of the participant, including in the benefit concession phase, considering net proceedings of its investment, amounts contributed and benefits paid; and • Variable Contribution Plans (CV): in this type of plan, scheduled benefits present a combination of characteristics of defined contribution and defined benefit modalities, and the benefit is actuarially determined based on the investment accumulated by the participant on the eligibility date. Below is a list of benefit plans and their modalities: Entity Benefit plan Modality Supplementary retirement plan Supplementary Retirement Plan – Flexible Premium Annuity Franprev benefit plan 002 benefit plan Prebeg benefit plan UBB PREV defined benefit plan Defined Benefit Benefit Plan II Itaulam basic plan Fundação Itaú Unibanco - Previdência Itaú Defined Benefit Plan Complementar - FIU REDECARD Retirement Plan ITAUCARD Retirement Defined Benefit Plan Itaubanco Defined Contribution Plan Itaubank Retirement Plan Defined Contribution REDECARD Pension Plan Unibanco Pension Plan Itaulam Supplementary Plan Itaú Defined Contribution Plan Variable Contribution REDECARD Retirement Plan ITAUCARD Supplementary Retirement Plan FUNBEP Fundo de Pensão Funbep I Benefit Plan Defined Benefit Multipatrocinado Funbep II Benefit Plan Variable Contribution The modality of Defined Contribution plans have funds composed by the portions of sponsors’ contributions not yet included in the participant’s account balance due to loss of eligibility to the benefit, as well as of resources arising from the migration of retirement plans in defined benefit modality. The fund is used for future contributions to the individual participants' accounts, according to the rules of the respective benefit plan regulation. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.62

a) Main Actuarial Assumptions Actuarial assumptions of demographic and financial nature should reflect the best estimated about the variables that determine the post-employment benefit amounts. The main demographic assumptions comprise: mortality table and turnover of active participants and the main financial assumptions include: discount rate, future salary increases, growth of plan benefits and inflation. 12/31/2018 12/31/2017 (1) Discount rate 9.72% p.a. 9.98% p.a. (2) Mortality table AT-2000 AT-2000 (3) Turnover Itaú Experience 2008/2010 Itaú Experience 2008/2010 Future salary growth 4.00% to 7.12 % p.a. 5.04% to 7.12 % p.a. Growth of the pension fund benefits 4.00 % p.a. 4.00 % p.a. Inflation 4.00 % p.a. 4.00 % p.a. Actuarial method Projected Unit Credit Projected Unit Credit (1) Determined based on market yield related to National Treasury Notes (NTN-B) and compatible with the economic scenario observed on the balance sheet closing date, considering the volatility of interest market and models used. (2) Correspond to those disclosed by SOA – Society of Actuaries, that reflect a 10% increase in the probabilities of survival regarding the respective basic tables. (3) Updated to the new expectation of mass behavior. Retired plans sponsored by foreign subsidiaries - Banco Itaú (Suisse) S.A., Itaú CorpBanca Colombia S.A. and PROSERV - Promociones y Servicios S.A. de C.V. - are structured as Defined Benefit modality and adopt actual assumptions adequate to masses of participants and the economic scenario of each country. b) Risk Management The EFPCs sponsored by ITAÚ UNIBANCO HOLDING are regulated by the National Council for Complementary Pension (CNPC) and PREVIC, has an Executive Board, Advisory and Tax Councils. Benefits offered have long-tem characteristics and the main factors involved in the management and measurement of their risks are financial risk, inflation risk and biometric risk. - Financial Risk – the actuarial liability is calculated by adopting a discount rate different from rates earned in investments. If real income from plan investments is lower than yield expected, this may give rise to a deficit. To mitigate this risk and assure the capacity to pay long-term benefits, the plans have a significant percentage of fixed-income securities pegged to the plan commitments, aiming at minimizing volatility and risk of mismatch between assets and liabilities. - Inflation risk – a large part of liabilities is pegged to inflation risk, making actuarial liabilities sensitive to increase in rates. To mitigate this risk, the same financial risks mitigation strategies are used. - Biometric Risk – plans that have any obligation actuarially assessed are exposed to biometric risk. In the event the mortality tables used are not adherent to the mass of plan participants, a deficit or surplus may arise in actuarial evaluation. To mitigate this risk, adherence tests to biometric assumptions are conducted to ensure their adequacy to liabilities of respective plans. For purposes of registering in the balance sheet the EFPCs that manage them, actuarial liabilities of plans use discount rate adherent to its asset portfolio and income and expense flows, according to a study preparedby an independent consulting company. The actuarial method used is the aggregate method, through which the plan costing Is defined by the difference between its equity coverage and the current value of its future liabilities. Observing the methodology established in the respective actuarial technical note. In the event deficit is verified in the concession period above the settlement limits set forth by the legislation in force, a debt agreement is entered into with the sponsor with financial guarantees. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.63 a) Main Actuarial Assumptions Actuarial assumptions of demographic and financial nature should reflect the best estimated about the variables that determine the post-employment benefit amounts. The main demographic assumptions comprise: mortality table and turnover of active participants and the main financial assumptions include: discount rate, future salary increases, growth of plan benefits and inflation. 12/31/2018 12/31/2017 (1) Discount rate 9.72% p.a. 9.98% p.a. (2) Mortality table AT-2000 AT-2000 (3) Turnover Itaú Experience 2008/2010 Itaú Experience 2008/2010 Future salary growth 4.00% to 7.12 % p.a. 5.04% to 7.12 % p.a. Growth of the pension fund benefits 4.00 % p.a. 4.00 % p.a. Inflation 4.00 % p.a. 4.00 % p.a. Actuarial method Projected Unit Credit Projected Unit Credit (1) Determined based on market yield related to National Treasury Notes (NTN-B) and compatible with the economic scenario observed on the balance sheet closing date, considering the volatility of interest market and models used. (2) Correspond to those disclosed by SOA – Society of Actuaries, that reflect a 10% increase in the probabilities of survival regarding the respective basic tables. (3) Updated to the new expectation of mass behavior. Retired plans sponsored by foreign subsidiaries - Banco Itaú (Suisse) S.A., Itaú CorpBanca Colombia S.A. and PROSERV - Promociones y Servicios S.A. de C.V. - are structured as Defined Benefit modality and adopt actual assumptions adequate to masses of participants and the economic scenario of each country. b) Risk Management The EFPCs sponsored by ITAÚ UNIBANCO HOLDING are regulated by the National Council for Complementary Pension (CNPC) and PREVIC, has an Executive Board, Advisory and Tax Councils. Benefits offered have long-tem characteristics and the main factors involved in the management and measurement of their risks are financial risk, inflation risk and biometric risk. - Financial Risk – the actuarial liability is calculated by adopting a discount rate different from rates earned in investments. If real income from plan investments is lower than yield expected, this may give rise to a deficit. To mitigate this risk and assure the capacity to pay long-term benefits, the plans have a significant percentage of fixed-income securities pegged to the plan commitments, aiming at minimizing volatility and risk of mismatch between assets and liabilities. - Inflation risk – a large part of liabilities is pegged to inflation risk, making actuarial liabilities sensitive to increase in rates. To mitigate this risk, the same financial risks mitigation strategies are used. - Biometric Risk – plans that have any obligation actuarially assessed are exposed to biometric risk. In the event the mortality tables used are not adherent to the mass of plan participants, a deficit or surplus may arise in actuarial evaluation. To mitigate this risk, adherence tests to biometric assumptions are conducted to ensure their adequacy to liabilities of respective plans. For purposes of registering in the balance sheet the EFPCs that manage them, actuarial liabilities of plans use discount rate adherent to its asset portfolio and income and expense flows, according to a study preparedby an independent consulting company. The actuarial method used is the aggregate method, through which the plan costing Is defined by the difference between its equity coverage and the current value of its future liabilities. Observing the methodology established in the respective actuarial technical note. In the event deficit is verified in the concession period above the settlement limits set forth by the legislation in force, a debt agreement is entered into with the sponsor with financial guarantees. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.63

c) Asset management The purpose of the management of the funds is the long-term balance between pension assets and liabilities with payment of benefits by exceeding actuarial goals (discount rate plus benefit adjustment index, established in the plan regulations). Below is a table with the allocation of assets by category, segmented into Quoted in an Active Market and Not Quoted in an Active Market: Fair value % Allocation Types 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Fixed income securities 18,064,771 16,851,376 96.05% 95.81% 94.51% 92.57% Quoted in an active market 17,774,647 16,281,813 Non quoted in an active market 290,124 569,563 1.54% 3.24% Variable income securities 24,323 18,986 0.13% 0.11% Quoted in an active market 17,765 15,239 0.09% 0.09% Non quoted in an active market 6,558 3,747 0.04% 0.02% Structured investments 59,140 24,477 0.31% 0.14% Quoted in an active market 615 1,277 0.01% 0.01% Non quoted in an active market 0.30% 0.13% 58,525 23,200 Real estate 3.07% 3.49% 577,908 614,683 Loans to participants 82,159 78,855 0.44% 0.45% 100.00% 100.00% Total 18,808,301 17,588,377 The defined benefit plan assets include shares of ITAÚ UNIBANCO HOLDING, its main parent company (ITAÚSA) and of subsidiaries of the latter, with a fair value of R$ 10,689 (R$ 11,614 at 12/31/2017), and real estate rented to Group companies, with a fair value of R$ 486,797 (R$ 530,998 at 12/31/2017). d) Other post-employment benefits ITAÚ UNIBANCO HOLDING PRUDENTIAL and its subsidiaries do not have additional liabilities related to post-employment benefits, except in cases arising from maintenance commitments assumed in acquisition agreements occurred over the years, as well as those benefits originated from judicial decision in the terms and conditions established, in which there is total or partial sponsorship of health care plan for a specific mass of former employees and their beneficiaries. Its costing is actuarially determined so as to ensure coverage maintenance. These plans are closed to new adhesions. Assumptions for discount rate, inflation, mortality table and actuarial method are the same used for retirement plans. In the last 3 years, ITAÚ UNIBANCO HOLDING PRUDENTIAL used the percentage of 8.16% p.a. for medical inflation and the percentage of 3% p.a. for aging factor. Particularly in other post-employment benefits, there is medical inflation risk associated to increase in medical costs above expectation. To mitigate this risk, the same financial risks mitigation strategies are used. e) Net amount recognized in the balance sheet 12/31/2018 Other post- BD and CV CD Plans employment Total Plans benefits 1 - Net assets of the plans 18,808,301 1,601,523 - 20,409,824 2 - Actuarial liabilities (15,492,841) - (281,933) (15,774,774) 3 - Asset restriction (*) (3,664,329) (938,290) - (4,602,619) 4 - Net amount recognized in the balance sheet (1+2+3) (348,869) 663,233 (281,933) 32,431 Amount recognized in Assets (Note 9a) 65,701 663,233 - 728,934 Amount recognized in Liabilities (Note 9d) (414,570) - ( 281,933) ( 696,503) (*) Corresponds to the excess of the present value of the available economic benefit, in conformity with Bacen Resolution nº 4,424/15. 12/31/2017 Other post- BD and CV CD Plans employment Total Plans benefits 1 - Net assets of the plans 17,588,377 1,631,516 - 19,219,893 2 - Actuarial liabilities (14,490,545) - (256,723) (14,747,268) 3 - Asset restriction (*) (3,217,361) (911,929) - (4,129,290) 4 - Net amount recognized in the balance sheet (1+2+3) (119,529) 719,587 (256,723) 343,335 Amount recognized in Assets (Note 9a) 344,907 719,587 - 1,064,494 Amount recognized in Liabilities (Note 9d) (464,436) - ( 256,723) ( 721,159) (*) Corresponds to the excess of the present value of the available economic benefit, in conformity with Bacen Resolution nº 4,424/15. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.64 c) Asset management The purpose of the management of the funds is the long-term balance between pension assets and liabilities with payment of benefits by exceeding actuarial goals (discount rate plus benefit adjustment index, established in the plan regulations). Below is a table with the allocation of assets by category, segmented into Quoted in an Active Market and Not Quoted in an Active Market: Fair value % Allocation Types 12/31/2018 12/31/2017 12/31/2018 12/31/2017 Fixed income securities 18,064,771 16,851,376 96.05% 95.81% 94.51% 92.57% Quoted in an active market 17,774,647 16,281,813 Non quoted in an active market 290,124 569,563 1.54% 3.24% Variable income securities 24,323 18,986 0.13% 0.11% Quoted in an active market 17,765 15,239 0.09% 0.09% Non quoted in an active market 6,558 3,747 0.04% 0.02% Structured investments 59,140 24,477 0.31% 0.14% Quoted in an active market 615 1,277 0.01% 0.01% Non quoted in an active market 0.30% 0.13% 58,525 23,200 Real estate 3.07% 3.49% 577,908 614,683 Loans to participants 82,159 78,855 0.44% 0.45% 100.00% 100.00% Total 18,808,301 17,588,377 The defined benefit plan assets include shares of ITAÚ UNIBANCO HOLDING, its main parent company (ITAÚSA) and of subsidiaries of the latter, with a fair value of R$ 10,689 (R$ 11,614 at 12/31/2017), and real estate rented to Group companies, with a fair value of R$ 486,797 (R$ 530,998 at 12/31/2017). d) Other post-employment benefits ITAÚ UNIBANCO HOLDING PRUDENTIAL and its subsidiaries do not have additional liabilities related to post-employment benefits, except in cases arising from maintenance commitments assumed in acquisition agreements occurred over the years, as well as those benefits originated from judicial decision in the terms and conditions established, in which there is total or partial sponsorship of health care plan for a specific mass of former employees and their beneficiaries. Its costing is actuarially determined so as to ensure coverage maintenance. These plans are closed to new adhesions. Assumptions for discount rate, inflation, mortality table and actuarial method are the same used for retirement plans. In the last 3 years, ITAÚ UNIBANCO HOLDING PRUDENTIAL used the percentage of 8.16% p.a. for medical inflation and the percentage of 3% p.a. for aging factor. Particularly in other post-employment benefits, there is medical inflation risk associated to increase in medical costs above expectation. To mitigate this risk, the same financial risks mitigation strategies are used. e) Net amount recognized in the balance sheet 12/31/2018 Other post- BD and CV CD Plans employment Total Plans benefits 1 - Net assets of the plans 18,808,301 1,601,523 - 20,409,824 2 - Actuarial liabilities (15,492,841) - (281,933) (15,774,774) 3 - Asset restriction (*) (3,664,329) (938,290) - (4,602,619) 4 - Net amount recognized in the balance sheet (1+2+3) (348,869) 663,233 (281,933) 32,431 Amount recognized in Assets (Note 9a) 65,701 663,233 - 728,934 Amount recognized in Liabilities (Note 9d) (414,570) - ( 281,933) ( 696,503) (*) Corresponds to the excess of the present value of the available economic benefit, in conformity with Bacen Resolution nº 4,424/15. 12/31/2017 Other post- BD and CV CD Plans employment Total Plans benefits 1 - Net assets of the plans 17,588,377 1,631,516 - 19,219,893 2 - Actuarial liabilities (14,490,545) - (256,723) (14,747,268) 3 - Asset restriction (*) (3,217,361) (911,929) - (4,129,290) 4 - Net amount recognized in the balance sheet (1+2+3) (119,529) 719,587 (256,723) 343,335 Amount recognized in Assets (Note 9a) 344,907 719,587 - 1,064,494 Amount recognized in Liabilities (Note 9d) (464,436) - ( 256,723) ( 721,159) (*) Corresponds to the excess of the present value of the available economic benefit, in conformity with Bacen Resolution nº 4,424/15. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.64

f) Change in the net amount recognized in the balance sheet 12/31/2018 Ohter post- BD and CV plans CD plans employment Total benefit Recognized Pension plan Asset Recognized Recognized Net assets Actuarial liabilities Asset ceiling Liabilities amount fund ceiling amount amount Amounts at the beginning of the period 17,588,377 (14,490,545) (3,217,361) (119,529) 1,631,516 (911,929) 719,587 ( 256,723) 343,335 Amounts recognized in income (loss) (1+2+3) 1,700,057 (1,454,691) (321,121) (75,755) 157,215 (89,691) 67,524 (24,873) (33,104) 1 - Cost of current service - (69,392) - (69,392) - - - - (69,392) 2 - Cost of past service - - - - - - - - - (1) 1,700,057 (1,385,299) (321,121) (6,363) 157,215 (89,691) 67,524 ( 24,873) 36,288 3 - Net interest Amounts recognized in stockholder´s equity (4+5+6) 580,120 (687,869) (125,847) (233,596) (101,674) 63,330 (38,344) (19,420) (291,360) 4 - Effects on asset ceiling - - (125,848) (125,848) - 63,330 63,330 - (62,518) (2) (3) 565,877 (683,336) 1 (117,458) (101,674) - (101,674) (19,420) (238,552) 5 - Remeasurements 6 - Exchange variation 14,243 (4,533) - 9,710 - - - - 9,710 Other (7+8+9+10) (1,060,253) 1,140,264 - 80,011 (85,534) - (85,534) 19,083 13,560 (4) - - - - - - - - - 7 - Receipt by allocation of funds 8 - Benefits paid (1,140,264) 1,140,264 - - - - - 19,083 19,083 9 - Contributions from sponsor 68,874 - - 68,874 (85,534) - (85,534) - (16,660) 10 - Contributions from parcipants 11,137 - - 11,137 - - - - 11,137 18,808,301 (15,492,841) (3,664,329) (348,869) 1,601,523 (938,290) 663,233 (281,933) 32,431 Amounts end of the period 12/31/2017 Ohter post- BD and CV plans CD plans Total employment benefit Recognized Pension plan Asset Recognized Recognized Net assets Actuarial liabilities Asset ceiling Liabilities amount fund ceiling amount amount Amounts at the beginning of the period 16,520,045 (13,722,558) (3,008,536) (211,049) 1,285,334 (490,932) 794,402 (221,125) 362,228 Amounts recognized in income (loss) (1+2+3) 1,638,738 (1,415,806) (307,432) (84,500) 125,992 (50,118) 75,874 ( 21,953) (30,579) 1 - Cost of current service - (69,234) - (69,234) - - - - (69,234) 2 - Cost of past service - - - - - - - - - (1) 1,638,738 (1,346,572) (307,432) (15,266) 125,992 (50,118) 75,874 (21,953) 38,655 3 - Net interest Amounts recognized in stockholder´s equity (4+5+6) 487,306 (493,640) 98,607 92,273 324,140 (370,879) (46,739) (28,183) 17,351 4 - Effects on asset ceiling - - 97,703 97,703 (14,980) (370,879) (385,859) - (288,156) (2) (3) 485,468 (487,356) 904 (984) 339,120 - 339,120 (28,183) 309,953 5 - Remeasurements 6 - Exchange variation 1,838 (6,284) - (4,446) - - - (4,446) Other (7+8+9+10) (1,057,712) 1,141,459 - 83,747 (103,950) - (103,950) 14,538 (5,665) (4) - - - - (12,826) - (12,826) - (12,826) 7 - Receipt by allocation of funds 8 - Benefits paid (1,141,459) 1,141,459 - - - - - 14,538 14,538 9 - Contributions from sponsor 71,453 - - 71,453 (91,124) - (91,124) - (19,671) 10 - Contributions from parcipants 12,294 - - 12,294 - - - - 12,294 Amounts end of the period 17,588,377 (14,490,545) (3,217,361) (119,529) 1,631,516 (911,929) 719,587 (256,723) 343,335 1) Corresponds to the amount calculated on 01/01/2018 based on the beginning amount (Net Assets, Actuarial Liabilities and Restriction of Assets), taking into account the estimated amount of payments/ receipts of benefits/ contributions, multiplied by the discount rate of 9.98% p.a.(On 01/01/2017 the rate used was 10.24% p.a.); (2) Remeasurements recorded in net assets and asset ceiling correspond to the income earned above/below the expected return rate; (3) The actual return on assets amounted to R$ 2,265,934 (R$ 2,124,206 at 12/31/2017). (4) Refers to distribution of excess pension fund from Itaubanco CD Plan. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.65 f) Change in the net amount recognized in the balance sheet 12/31/2018 Ohter post- BD and CV plans CD plans employment Total benefit Recognized Pension plan Asset Recognized Recognized Net assets Actuarial liabilities Asset ceiling Liabilities amount fund ceiling amount amount Amounts at the beginning of the period 17,588,377 (14,490,545) (3,217,361) (119,529) 1,631,516 (911,929) 719,587 ( 256,723) 343,335 Amounts recognized in income (loss) (1+2+3) 1,700,057 (1,454,691) (321,121) (75,755) 157,215 (89,691) 67,524 (24,873) (33,104) 1 - Cost of current service - (69,392) - (69,392) - - - - (69,392) 2 - Cost of past service - - - - - - - - - (1) 1,700,057 (1,385,299) (321,121) (6,363) 157,215 (89,691) 67,524 ( 24,873) 36,288 3 - Net interest Amounts recognized in stockholder´s equity (4+5+6) 580,120 (687,869) (125,847) (233,596) (101,674) 63,330 (38,344) (19,420) (291,360) 4 - Effects on asset ceiling - - (125,848) (125,848) - 63,330 63,330 - (62,518) (2) (3) 565,877 (683,336) 1 (117,458) (101,674) - (101,674) (19,420) (238,552) 5 - Remeasurements 6 - Exchange variation 14,243 (4,533) - 9,710 - - - - 9,710 Other (7+8+9+10) (1,060,253) 1,140,264 - 80,011 (85,534) - (85,534) 19,083 13,560 (4) - - - - - - - - - 7 - Receipt by allocation of funds 8 - Benefits paid (1,140,264) 1,140,264 - - - - - 19,083 19,083 9 - Contributions from sponsor 68,874 - - 68,874 (85,534) - (85,534) - (16,660) 10 - Contributions from parcipants 11,137 - - 11,137 - - - - 11,137 18,808,301 (15,492,841) (3,664,329) (348,869) 1,601,523 (938,290) 663,233 (281,933) 32,431 Amounts end of the period 12/31/2017 Ohter post- BD and CV plans CD plans Total employment benefit Recognized Pension plan Asset Recognized Recognized Net assets Actuarial liabilities Asset ceiling Liabilities amount fund ceiling amount amount Amounts at the beginning of the period 16,520,045 (13,722,558) (3,008,536) (211,049) 1,285,334 (490,932) 794,402 (221,125) 362,228 Amounts recognized in income (loss) (1+2+3) 1,638,738 (1,415,806) (307,432) (84,500) 125,992 (50,118) 75,874 ( 21,953) (30,579) 1 - Cost of current service - (69,234) - (69,234) - - - - (69,234) 2 - Cost of past service - - - - - - - - - (1) 1,638,738 (1,346,572) (307,432) (15,266) 125,992 (50,118) 75,874 (21,953) 38,655 3 - Net interest Amounts recognized in stockholder´s equity (4+5+6) 487,306 (493,640) 98,607 92,273 324,140 (370,879) (46,739) (28,183) 17,351 4 - Effects on asset ceiling - - 97,703 97,703 (14,980) (370,879) (385,859) - (288,156) (2) (3) 485,468 (487,356) 904 (984) 339,120 - 339,120 (28,183) 309,953 5 - Remeasurements 6 - Exchange variation 1,838 (6,284) - (4,446) - - - (4,446) Other (7+8+9+10) (1,057,712) 1,141,459 - 83,747 (103,950) - (103,950) 14,538 (5,665) (4) - - - - (12,826) - (12,826) - (12,826) 7 - Receipt by allocation of funds 8 - Benefits paid (1,141,459) 1,141,459 - - - - - 14,538 14,538 9 - Contributions from sponsor 71,453 - - 71,453 (91,124) - (91,124) - (19,671) 10 - Contributions from parcipants 12,294 - - 12,294 - - - - 12,294 Amounts end of the period 17,588,377 (14,490,545) (3,217,361) (119,529) 1,631,516 (911,929) 719,587 (256,723) 343,335 1) Corresponds to the amount calculated on 01/01/2018 based on the beginning amount (Net Assets, Actuarial Liabilities and Restriction of Assets), taking into account the estimated amount of payments/ receipts of benefits/ contributions, multiplied by the discount rate of 9.98% p.a.(On 01/01/2017 the rate used was 10.24% p.a.); (2) Remeasurements recorded in net assets and asset ceiling correspond to the income earned above/below the expected return rate; (3) The actual return on assets amounted to R$ 2,265,934 (R$ 2,124,206 at 12/31/2017). (4) Refers to distribution of excess pension fund from Itaubanco CD Plan. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.65

g) Defined benefit contribution Estimated Contributions made contribution 01/01 to 01/01 to 2019 12/31/2018 12/31/2017 Pension plan - FIU 47,279 58,081 57,834 Pension plan - FUNBEP 10,115 10,793 13,619 57,394 68,874 71,453 Total h) Maturity profile of defined benefit liabilities (*) Duration 2019 2020 2021 2022 2023 2024 to 2028 Pension plan - FIU 10.88 799,004 823,503 858,735 893,598 929,239 5,184,106 Pension plan - FUNBEP 10.09 370,160 387,370 404,340 419,677 434,644 2,361,645 Other post-employment benefits 12.02 16,981 18,073 19,223 20,388 21,569 127,453 Total 1,186,145 1,228,946 1,282,298 1,333,663 1,385,452 7,673,204 (*) Average duration of plan´s actuarial liabilities. i) Sensitivity analysis To measure the effects of changes in the key assumptions, sensitivity tests were conducted in actuarial liabilities. The sensitivity analysis considers a vision of the impacts caused by changes in assumptions, which could affect the income for the period and stockholders’ equity at the balance sheet date. This type of analysis is usually carried out under the ceteris paribus condition, in which the sensitivity of a system is measured when only one variable of interest is changed and all the others remain unchanged. The results obtained are shown in the table below: BD and CV plans Other post-employment benefits Present Stockholders´ Stockholders´ Present value Main assumptions Income Income value of (*) (*) of liability equity equity liability Interest rate Increase by 0.5% (717,588) - 76,368 (15,202) - (15,202) Decrease by 0.5% 782,123 - (249,711) 16,720 - 16,720 Mortality rate Increase by 5% (159,871) - 45,128 (6,309) - (6,309) Decrease by 5% 167,150 - (47,704) 6,752 - 6,752 Medical inflation Increase by 1% - - - 32,653 - 32,653 Decrease by 1% - - - (27,667) - (27,667) (*) Net of effects of asset ceiling Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.66 g) Defined benefit contribution Estimated Contributions made contribution 01/01 to 01/01 to 2019 12/31/2018 12/31/2017 Pension plan - FIU 47,279 58,081 57,834 Pension plan - FUNBEP 10,115 10,793 13,619 57,394 68,874 71,453 Total h) Maturity profile of defined benefit liabilities (*) Duration 2019 2020 2021 2022 2023 2024 to 2028 Pension plan - FIU 10.88 799,004 823,503 858,735 893,598 929,239 5,184,106 Pension plan - FUNBEP 10.09 370,160 387,370 404,340 419,677 434,644 2,361,645 Other post-employment benefits 12.02 16,981 18,073 19,223 20,388 21,569 127,453 Total 1,186,145 1,228,946 1,282,298 1,333,663 1,385,452 7,673,204 (*) Average duration of plan´s actuarial liabilities. i) Sensitivity analysis To measure the effects of changes in the key assumptions, sensitivity tests were conducted in actuarial liabilities. The sensitivity analysis considers a vision of the impacts caused by changes in assumptions, which could affect the income for the period and stockholders’ equity at the balance sheet date. This type of analysis is usually carried out under the ceteris paribus condition, in which the sensitivity of a system is measured when only one variable of interest is changed and all the others remain unchanged. The results obtained are shown in the table below: BD and CV plans Other post-employment benefits Present Stockholders´ Stockholders´ Present value Main assumptions Income Income value of (*) (*) of liability equity equity liability Interest rate Increase by 0.5% (717,588) - 76,368 (15,202) - (15,202) Decrease by 0.5% 782,123 - (249,711) 16,720 - 16,720 Mortality rate Increase by 5% (159,871) - 45,128 (6,309) - (6,309) Decrease by 5% 167,150 - (47,704) 6,752 - 6,752 Medical inflation Increase by 1% - - - 32,653 - 32,653 Decrease by 1% - - - (27,667) - (27,667) (*) Net of effects of asset ceiling Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.66

Note 16 – Information on foreign subsidiaries ITAÚ UNIBANCO HOLDING PRUDENTIAL has subsidiaries abroad, basically compose of: Itaú Unibanco S.A. - Grand Cayman Branch, New York Branch, Tokyo Branch, Nassau Branch, Itaú Unibanco Holding S.A. Cayman Branch, Itau Bank, Ltd., ITB Holding Ltd., Banco Itaú Argentina S.A., Banco Itaú Uruguay S.A., Itaú CorpBanca Colômbia S.A., Itaú CorpBanca S.A., Banco Itaú Paraguay S.A. and Itau BBA International plc. Net income 01/01 to 01/01 to 12/31/2018 12/31/2017 Foreign consolidated 3,297,701 3,687,855 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.67 Note 16 – Information on foreign subsidiaries ITAÚ UNIBANCO HOLDING PRUDENTIAL has subsidiaries abroad, basically compose of: Itaú Unibanco S.A. - Grand Cayman Branch, New York Branch, Tokyo Branch, Nassau Branch, Itaú Unibanco Holding S.A. Cayman Branch, Itau Bank, Ltd., ITB Holding Ltd., Banco Itaú Argentina S.A., Banco Itaú Uruguay S.A., Itaú CorpBanca Colômbia S.A., Itaú CorpBanca S.A., Banco Itaú Paraguay S.A. and Itau BBA International plc. Net income 01/01 to 01/01 to 12/31/2018 12/31/2017 Foreign consolidated 3,297,701 3,687,855 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.67

Note 17 – Risk, Capital Management and Fixed Assets Limits a) Corporate Governance ITAÚ UNIBANCO HOLDING CONSOLIDATED invests in sound processes for risk and capital management that permeates the whole institution and are the basis of all strategic decisions to ensure business sustainability. These processes are aligned with the guidelines of the Board of Directors and Executives that, through corporate bodies, define the global objectives that are measured as goals and limits to the risk management units. Control and capital management units, in turn, support the ITAÚ UNIBANCO HOLDING CONSOLIDATED’s management by monitoring and analyzing risk and capital. The Board of Directors is the main body responsible for establishing guidelines, policies, and approval levels for risk and capital management. The Capital and Risk Management Committee (CGRC), in turn, is responsible for supporting the Board of Directors in the performance of its assignments related to capital and risk management. In the executive level, collegiate bodies, presided over by the Chief Executive Officer (CEO) of ITAÚ UNIBANCO HOLDING CONSOLIDATED, are responsible for capital and risk management and which decisions are monitored in the scope of CGRC. Additionally, ITAÚ UNIBANCO HOLDING CONSOLIDATED has panels collegiate bodies, which exercise the responsibilities delegated in capital and risk management, presided over by the Executive Vice-President of the Risk and Finance Department (ARF). To support this structure, ARF has specialized executive boards to ensure, on an independent and centralized basis, that the institution’s risks and capital are managed in compliance with policies and procedures established. b) Risk Management Risk Appetite The risk appetite of ITAÚ UNIBANCO HOLDING CONSOLIDATED is based on the Board of Director’s statement: “We are a universal bank, operating mainly in Latin America. Supported by our risk culture, we act with strict ethical standard and regulatory compliance, in search for high and increasing results, with low volatility, through long-lasting relationship with the client, correct risk pricing, pulverized funding and proper use of capital.” Based on this statement, five dimensions have been established (Capitalization, Liquidity, Composition of results, Operational Risk and Reputation). Each dimension is made up of a set of metrics associated with the main risks involved, combining supplementary measurement methods, in search for a comprehensive vision of our exposures. The Board of Directors is responsible for approving guidelines and limits for risk appetite, exercising its activities with the support of CGRC and CRO - Chief Risk Officer. The limits for risk appetite are frequently monitored and reported to risk committees and to the Board of Directors, which will guide the preventive measures to be taken to ensure that exposures are aligned with the strategies of ITAÚ UNIBANCO HOLDING CONSOLIDATED. Among BACEN’s requirement for proper risk and capital management, noteworthy are the Risk Appetite Statement” (RAS) and the implementation of continuous and integrated risk management structure, the stress test program, the organization of the Risk Committee and nomination, before BACEN, of the Chief Risk Officer (CRO), with assignment of roles, responsibilities and independence requirements. Substantiation for risk appetite, risk management and guidelines for activities of employees of ITAÚ UNIBANCO HOLDING CONSOLIDATED the day-to-day for decision-making purposes are: · Sustainability and client satisfaction: ITAÚ UNIBANCO HOLDING CONSOLIDATED’s vision is to be the leading bank in sustainable performance and client satisfaction and, therefore, it is committed to creating shared value to employees, clients, stockholders, and society, ensuring the continuity of business. ITAÚ UNIBANCO HOLDING CONSOLIDATED’s is committed to do business that is good both for the client and the institution itself; Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.68 Note 17 – Risk, Capital Management and Fixed Assets Limits a) Corporate Governance ITAÚ UNIBANCO HOLDING CONSOLIDATED invests in sound processes for risk and capital management that permeates the whole institution and are the basis of all strategic decisions to ensure business sustainability. These processes are aligned with the guidelines of the Board of Directors and Executives that, through corporate bodies, define the global objectives that are measured as goals and limits to the risk management units. Control and capital management units, in turn, support the ITAÚ UNIBANCO HOLDING CONSOLIDATED’s management by monitoring and analyzing risk and capital. The Board of Directors is the main body responsible for establishing guidelines, policies, and approval levels for risk and capital management. The Capital and Risk Management Committee (CGRC), in turn, is responsible for supporting the Board of Directors in the performance of its assignments related to capital and risk management. In the executive level, collegiate bodies, presided over by the Chief Executive Officer (CEO) of ITAÚ UNIBANCO HOLDING CONSOLIDATED, are responsible for capital and risk management and which decisions are monitored in the scope of CGRC. Additionally, ITAÚ UNIBANCO HOLDING CONSOLIDATED has panels collegiate bodies, which exercise the responsibilities delegated in capital and risk management, presided over by the Executive Vice-President of the Risk and Finance Department (ARF). To support this structure, ARF has specialized executive boards to ensure, on an independent and centralized basis, that the institution’s risks and capital are managed in compliance with policies and procedures established. b) Risk Management Risk Appetite The risk appetite of ITAÚ UNIBANCO HOLDING CONSOLIDATED is based on the Board of Director’s statement: “We are a universal bank, operating mainly in Latin America. Supported by our risk culture, we act with strict ethical standard and regulatory compliance, in search for high and increasing results, with low volatility, through long-lasting relationship with the client, correct risk pricing, pulverized funding and proper use of capital.” Based on this statement, five dimensions have been established (Capitalization, Liquidity, Composition of results, Operational Risk and Reputation). Each dimension is made up of a set of metrics associated with the main risks involved, combining supplementary measurement methods, in search for a comprehensive vision of our exposures. The Board of Directors is responsible for approving guidelines and limits for risk appetite, exercising its activities with the support of CGRC and CRO - Chief Risk Officer. The limits for risk appetite are frequently monitored and reported to risk committees and to the Board of Directors, which will guide the preventive measures to be taken to ensure that exposures are aligned with the strategies of ITAÚ UNIBANCO HOLDING CONSOLIDATED. Among BACEN’s requirement for proper risk and capital management, noteworthy are the Risk Appetite Statement” (RAS) and the implementation of continuous and integrated risk management structure, the stress test program, the organization of the Risk Committee and nomination, before BACEN, of the Chief Risk Officer (CRO), with assignment of roles, responsibilities and independence requirements. Substantiation for risk appetite, risk management and guidelines for activities of employees of ITAÚ UNIBANCO HOLDING CONSOLIDATED the day-to-day for decision-making purposes are: · Sustainability and client satisfaction: ITAÚ UNIBANCO HOLDING CONSOLIDATED’s vision is to be the leading bank in sustainable performance and client satisfaction and, therefore, it is committed to creating shared value to employees, clients, stockholders, and society, ensuring the continuity of business. ITAÚ UNIBANCO HOLDING CONSOLIDATED’s is committed to do business that is good both for the client and the institution itself; Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.68

· Risk Culture: ITAÚ UNIBANCO HOLDING CONSOLIDATED’s risk culture goes beyond policies, procedures or processes, as it strengthens the individual and collective responsibility of all employees so they do the right thing at the right moment and on the proper way, by respecting the ethical way of doing business; · Risk pricing: ITAÚ UNIBANCO HOLDING CONSOLIDATED’s acts and assumes risks in business it knows and understands, avoiding risks that are unknown to the institution or that do not have a competitive edge, therefore carefully assessing the risk-return ratio; · Diversification: ITAÚ UNIBANCO HOLDING CONSOLIDATED has low appetite to volatility in results and, therefore, it operates with a diversified base of clients, products and business, seeking to diversify risks and giving priority to lower risk business; · Operational excellence: It is the wish of ITAÚ UNIBANCO HOLDING CONSOLIDATED to be an agile bank, with a robust and stable infrastructure to offer top services; · Ethics and respect for regulation: for ITAÚ UNIBANCO HOLDING CONSOLIDATED, ethics is non- negotiable, and, therefore, the institute promotes an institutional environment that has integrity, guiding employees to cultivate ethics in relationships and business, and the respect for rules, as it cultivates the care for the institution’s reputation. ITAÚ UNIBANCO HOLDING CONSOLIDATED adopts several initiatives to disseminate risk culture, based on four principles: conscious risk-taking, discussion of the risks the institution faces, the corresponding action taken, and the responsibility of everyone to manage risks. These principles lay down the basis for ITAÚ UNIBANCO HOLDING CONSOLIDATED’s guidelines by helping employees to consciously understand, identify, measure, manage and mitigate risks. I – Credit risk Possibility of losses arising from the breach by the borrower, issuer or counterparty of the respective agreed- upon financial obligations, the devaluation of loan agreement due to downgrading of the borrower’s, the issuer’s, the counterparty’s risk rating, the reduction in gains or compensation, the advantages given upon posterior renegotiation and the recovery costs. There is a credit risk control and management structure, centralized and independent from the business units, that provides for operational limits and risk mitigating mechanisms, in addition for establishing processes and tools to measure, monitor and control the credit risk inherent in all products, portfolio concentrations and the impacts from potential changes in the economic environment. The credit policy of ITAÚ UNIBANCO HOLDING CONSOLIDATED is based on internal criteria such as: classification of clients, performance and portfolio evolution, default levels, return rate and economic capital allocated, among other external factors, such as: interest rates, market default indicators, inflation, consumption variation, among others. In compliance with CMN Resolution 4,557, of February 2017, 23, the document “Public Access Report – Credit Risk“, which includes the guidelines established by the institutional credit risk control policy can be viewed at www.itau.com.br/investor-relations, under Itaú Unibanco, Corporate Governance, Regulations and Policies. II - Market risk Possibility of incurring financial losses arising from the changes in the market value of positions held by a financial institution, including the risks of transactions subject to foreign exchange variation, interest rates, share prices, price indexes and commodity prices. ITAÚ UNIBANCO HOLDING CONSOLIDATED’s market risk management strategy is aimed at balancing corporate business goals, taking into account, among other things: political, economic and market conditions; portfolio profile of ITAÚ UNIBANCO HOLDING CONSOLIDATED and expertise within the group to support operations in specific markets. The market risk is controlled by an area independent from the business areas, which is responsible for the daily activities of: (i) risk measurement and assessment, (ii) monitoring of stress scenarios, limits and warnings, (iii) application, analysis and tests of stress scenarios, (iv) risk reporting for individuals responsible within the business areas, in compliance with governance of ITAÚ UNIBANCO HOLDING CONSOLIDATED, (v) monitoring of actions required for adjustment of positions and/or risk levels to make them feasible, and (vi) support to the launch of new financial products with security. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.69 · Risk Culture: ITAÚ UNIBANCO HOLDING CONSOLIDATED’s risk culture goes beyond policies, procedures or processes, as it strengthens the individual and collective responsibility of all employees so they do the right thing at the right moment and on the proper way, by respecting the ethical way of doing business; · Risk pricing: ITAÚ UNIBANCO HOLDING CONSOLIDATED’s acts and assumes risks in business it knows and understands, avoiding risks that are unknown to the institution or that do not have a competitive edge, therefore carefully assessing the risk-return ratio; · Diversification: ITAÚ UNIBANCO HOLDING CONSOLIDATED has low appetite to volatility in results and, therefore, it operates with a diversified base of clients, products and business, seeking to diversify risks and giving priority to lower risk business; · Operational excellence: It is the wish of ITAÚ UNIBANCO HOLDING CONSOLIDATED to be an agile bank, with a robust and stable infrastructure to offer top services; · Ethics and respect for regulation: for ITAÚ UNIBANCO HOLDING CONSOLIDATED, ethics is non- negotiable, and, therefore, the institute promotes an institutional environment that has integrity, guiding employees to cultivate ethics in relationships and business, and the respect for rules, as it cultivates the care for the institution’s reputation. ITAÚ UNIBANCO HOLDING CONSOLIDATED adopts several initiatives to disseminate risk culture, based on four principles: conscious risk-taking, discussion of the risks the institution faces, the corresponding action taken, and the responsibility of everyone to manage risks. These principles lay down the basis for ITAÚ UNIBANCO HOLDING CONSOLIDATED’s guidelines by helping employees to consciously understand, identify, measure, manage and mitigate risks. I – Credit risk Possibility of losses arising from the breach by the borrower, issuer or counterparty of the respective agreed- upon financial obligations, the devaluation of loan agreement due to downgrading of the borrower’s, the issuer’s, the counterparty’s risk rating, the reduction in gains or compensation, the advantages given upon posterior renegotiation and the recovery costs. There is a credit risk control and management structure, centralized and independent from the business units, that provides for operational limits and risk mitigating mechanisms, in addition for establishing processes and tools to measure, monitor and control the credit risk inherent in all products, portfolio concentrations and the impacts from potential changes in the economic environment. The credit policy of ITAÚ UNIBANCO HOLDING CONSOLIDATED is based on internal criteria such as: classification of clients, performance and portfolio evolution, default levels, return rate and economic capital allocated, among other external factors, such as: interest rates, market default indicators, inflation, consumption variation, among others. In compliance with CMN Resolution 4,557, of February 2017, 23, the document “Public Access Report – Credit Risk“, which includes the guidelines established by the institutional credit risk control policy can be viewed at www.itau.com.br/investor-relations, under Itaú Unibanco, Corporate Governance, Regulations and Policies. II - Market risk Possibility of incurring financial losses arising from the changes in the market value of positions held by a financial institution, including the risks of transactions subject to foreign exchange variation, interest rates, share prices, price indexes and commodity prices. ITAÚ UNIBANCO HOLDING CONSOLIDATED’s market risk management strategy is aimed at balancing corporate business goals, taking into account, among other things: political, economic and market conditions; portfolio profile of ITAÚ UNIBANCO HOLDING CONSOLIDATED and expertise within the group to support operations in specific markets. The market risk is controlled by an area independent from the business areas, which is responsible for the daily activities of: (i) risk measurement and assessment, (ii) monitoring of stress scenarios, limits and warnings, (iii) application, analysis and tests of stress scenarios, (iv) risk reporting for individuals responsible within the business areas, in compliance with governance of ITAÚ UNIBANCO HOLDING CONSOLIDATED, (v) monitoring of actions required for adjustment of positions and/or risk levels to make them feasible, and (vi) support to the launch of new financial products with security. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.69

The National Monetary Council (CMN) has regulations that establish the segregation of exposure to market risk at least in the following categories: interest rate, exchange rate, shares and commodities. Brazilian inflation indexes are treated as a group of risk indicators and receive the same treatment given to other risk indicators. The structure of limits and warnings is in line with the Board of Directors’ guidelines, and it is reviewed and approved on an annual basis. This structure has specific limits aiming at improving the risk monitoring and understanding process, and at avoiding concentration. These limits are quantified by assessing the forecasted results of the balance sheet, size of stockholders’ equity, liquidity, market complexity and volatility, as well as the institution’s appetite for risk. In order to set up operations within the defined limits, ITAÚ UNIBANCO HOLDING CONSOLIDATED hedges transactions with clients and proprietary positions, including its foreign investments. Derivatives are commonly used for these hedging activities, and can be characterized as accounting or economic hedge, both governed by the institutional polices of ITAÚ UNIBANCO HOLDING CONSOLIDATED (Note 5 - Securities and derivative financial instruments). The market risk structure categorizes transactions as part of either the banking portfolio or the trading portfolio, in accordance with general criteria established by CMN Resolution nº. 4,557, of February 2017, 23, and BACEN Circular nº. 3,354, of June 2007, 27. The trading portfolio consists of all transactions involving financial instruments and goods, including derivatives, which are carried out with the intention of trading. The banking portfolio is basically characterized by transactions from the banking business, and transactions related to the management of the balance sheet of the institution, it has the no-intention of resale and medium and long term time horizons as general guidelines. Market risk management analyses is conducted based on the following metrics: · Value at risk (VaR): statistical measure that estimates the expected maximum potential economic loss under normal market conditions, considering a certain time horizon and confidence level; · Losses in stress scenarios: simulation technique to assess the behavior of assets, liabilities and derivatives of a portfolio when several risk factors are taken to extreme market situations (based on prospective and historical scenarios); · Stop loss: metrics which purpose is to review positions, should losses accumulated in a certain period reach a certain amount; · Concentration: cumulative exposure of a certain financial instrument or risk factor, calculated at market value (“MtM – Mark to Market”); and · Stressed VaR: statistical metric arising from VaR calculation, which purpose is to capture higher risk in simulations for the trading portfolio, considering returns that can be seen in historical scenarios of extreme volatility. Management of interest rate risk in the Banking Book (IRRBB) is performed based on the following metrics: · ΔEVE: difference between the present value of sum of repricing flows instruments subject to IRRBB in a base scenario and present value of sum of repricing flows of these instruments in a scenario of shock in interest rates; · ΔNII: difference between the result of financial intermediation of instruments subject to IRRBB in a base scenario and the result of financial intermediation of these instruments in a scenario of shock in interest rates. In addition to the aforementioned risk measures, sensitivity and loss control measures are also analyzed. They comprise: · Mismatching analysis (GAPS): accumulated exposure by risk factor of cash flows expressed at market value, allocated at the maturity dates; · Sensitivity (DV01- Delta Variation): impact on the market value of cash flows, when submitted to an one annual basis point increase in the current interest rates or index rate; · Sensitivity to several risk factors (Greeks): partial derivatives of an option portfolio in relation to the prices of underlying assets, implied volatilities, interest rates and time. ITAÚ UNIBANCO HOLDING CONSOLIDATED uses proprietary systems to measure the consolidated market risk. The processing of these systems occurs in an access-controlled environment, being highly available, which has data safekeeping and recovery processes and counts on such an infrastructure to ensure the continuity of business in contingency (disaster recovery) situations. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.70 The National Monetary Council (CMN) has regulations that establish the segregation of exposure to market risk at least in the following categories: interest rate, exchange rate, shares and commodities. Brazilian inflation indexes are treated as a group of risk indicators and receive the same treatment given to other risk indicators. The structure of limits and warnings is in line with the Board of Directors’ guidelines, and it is reviewed and approved on an annual basis. This structure has specific limits aiming at improving the risk monitoring and understanding process, and at avoiding concentration. These limits are quantified by assessing the forecasted results of the balance sheet, size of stockholders’ equity, liquidity, market complexity and volatility, as well as the institution’s appetite for risk. In order to set up operations within the defined limits, ITAÚ UNIBANCO HOLDING CONSOLIDATED hedges transactions with clients and proprietary positions, including its foreign investments. Derivatives are commonly used for these hedging activities, and can be characterized as accounting or economic hedge, both governed by the institutional polices of ITAÚ UNIBANCO HOLDING CONSOLIDATED (Note 5 - Securities and derivative financial instruments). The market risk structure categorizes transactions as part of either the banking portfolio or the trading portfolio, in accordance with general criteria established by CMN Resolution nº. 4,557, of February 2017, 23, and BACEN Circular nº. 3,354, of June 2007, 27. The trading portfolio consists of all transactions involving financial instruments and goods, including derivatives, which are carried out with the intention of trading. The banking portfolio is basically characterized by transactions from the banking business, and transactions related to the management of the balance sheet of the institution, it has the no-intention of resale and medium and long term time horizons as general guidelines. Market risk management analyses is conducted based on the following metrics: · Value at risk (VaR): statistical measure that estimates the expected maximum potential economic loss under normal market conditions, considering a certain time horizon and confidence level; · Losses in stress scenarios: simulation technique to assess the behavior of assets, liabilities and derivatives of a portfolio when several risk factors are taken to extreme market situations (based on prospective and historical scenarios); · Stop loss: metrics which purpose is to review positions, should losses accumulated in a certain period reach a certain amount; · Concentration: cumulative exposure of a certain financial instrument or risk factor, calculated at market value (“MtM – Mark to Market”); and · Stressed VaR: statistical metric arising from VaR calculation, which purpose is to capture higher risk in simulations for the trading portfolio, considering returns that can be seen in historical scenarios of extreme volatility. Management of interest rate risk in the Banking Book (IRRBB) is performed based on the following metrics: · ΔEVE: difference between the present value of sum of repricing flows instruments subject to IRRBB in a base scenario and present value of sum of repricing flows of these instruments in a scenario of shock in interest rates; · ΔNII: difference between the result of financial intermediation of instruments subject to IRRBB in a base scenario and the result of financial intermediation of these instruments in a scenario of shock in interest rates. In addition to the aforementioned risk measures, sensitivity and loss control measures are also analyzed. They comprise: · Mismatching analysis (GAPS): accumulated exposure by risk factor of cash flows expressed at market value, allocated at the maturity dates; · Sensitivity (DV01- Delta Variation): impact on the market value of cash flows, when submitted to an one annual basis point increase in the current interest rates or index rate; · Sensitivity to several risk factors (Greeks): partial derivatives of an option portfolio in relation to the prices of underlying assets, implied volatilities, interest rates and time. ITAÚ UNIBANCO HOLDING CONSOLIDATED uses proprietary systems to measure the consolidated market risk. The processing of these systems occurs in an access-controlled environment, being highly available, which has data safekeeping and recovery processes and counts on such an infrastructure to ensure the continuity of business in contingency (disaster recovery) situations. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.70

As of December 31, 2018, ITAÚ UNIBANCO HOLDING CONSOLIDATED presented a Total VaR of R$ 381.5 million, without significant changes in relation to the same period of the previous year (R$ 372.3 million at December 31, 2017). The document “Public Access Report – Market Risk“, which includes the guidelines established by the institutional credit risk control policy, which is not an integral part of the financial statements, can be viewed at www.itau.com.br/investor-relations, under Itaú Unibanco, Corporate Governance, Regulations and Policies. III – Liquidity risk The institution’s possibility of not being able to efficiently meet its expected and unexpected obligations, both current and future, including those arising from the pledged guarantees, without affecting its daily operations and without incurring significant losses. The control over liquidity risk is carried out by an area independent from the business area and responsible for establishing the reserve composition, estimating the cash flow and exposure to liquidity risk in different horizons of time, and monitoring the minimum limits to absorb losses in stress scenarios for each country where ITAÚ UNIBANCO HOLDING CONSOLIDATED operates. All activities are subject to verification by the independent validation, internal control and audit areas. The document Public Access Report - Liquidity Risk, that expresses the guidelines set forth by the internal policy on liquidity risk, that is not part of the financial statements, may be viewed on the website www.itau.com.br/investor-relations, in the section Itaú Unibanco, Corporate Governance, Rules and Policies. IV – Operational risk The possibility of losses from failure of, insufficient or inadequate internal processes, people and systems, or from external events impacting the realization of strategic, tactical or operational objectives. It includes the legal risk, associated with the inadequacy or deficiency in agreements signed by the institution, as well as sanctions for failing to meet legal provisions and compensation for damages to third parties arising from activities performed by the institution. The managers of executive areas adopt corporate methodologies developed and made available by the internal controls, compliance and operational risk area. As part of governance of risk management process, consolidated reports on risk monitoring, controls, action plans and operating losses are periodically presented to the business areas’ executives. In line with the principles of CMN Resolution No. 4,557, of February 2017, 23, the document entitled “Public Access Report – Integrated Management of Operational Risk/ Internal Controls/ Compliance“, a summarized version of the institutional operational risk management policy, may be accessed on the website www.itau.com.br/investor-relations, section Itaú Unibanco, “Corporate Governance”, Rules and Policies. V - Social and environmental risk Risk of potential losses due to exposure to social and environmental damages arising from the performance of its activities. The social and environmental risk management is carried out by the first line of defense in its daily operations, with the technical assessment of the legal and risk areas, which have a technical dedicated team. Business units also have governance for approval of new products, which includes the assessment of the social and environmental risk, therefore ensuring compliance with this requirement for all new products approved by the institution. Governance still has the Social and Environmental Risk Committee, which main duty is to guide the institutional understanding related to exposure to social and environmental risk for the institution’s activities. Mitigation actions concerning the social and environmental risk are carried out by mapping processes, risks and controls, monitoring new regulations on the subject, and recording any occurrences in internal databases. In addition to identification, the phases of prioritization, response, monitoring and reporting of assessed risks supplement this risk monitoring at ITAÚ UNIBANCO HOLDING CONSOLIDATED. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.71 As of December 31, 2018, ITAÚ UNIBANCO HOLDING CONSOLIDATED presented a Total VaR of R$ 381.5 million, without significant changes in relation to the same period of the previous year (R$ 372.3 million at December 31, 2017). The document “Public Access Report – Market Risk“, which includes the guidelines established by the institutional credit risk control policy, which is not an integral part of the financial statements, can be viewed at www.itau.com.br/investor-relations, under Itaú Unibanco, Corporate Governance, Regulations and Policies. III – Liquidity risk The institution’s possibility of not being able to efficiently meet its expected and unexpected obligations, both current and future, including those arising from the pledged guarantees, without affecting its daily operations and without incurring significant losses. The control over liquidity risk is carried out by an area independent from the business area and responsible for establishing the reserve composition, estimating the cash flow and exposure to liquidity risk in different horizons of time, and monitoring the minimum limits to absorb losses in stress scenarios for each country where ITAÚ UNIBANCO HOLDING CONSOLIDATED operates. All activities are subject to verification by the independent validation, internal control and audit areas. The document Public Access Report - Liquidity Risk, that expresses the guidelines set forth by the internal policy on liquidity risk, that is not part of the financial statements, may be viewed on the website www.itau.com.br/investor-relations, in the section Itaú Unibanco, Corporate Governance, Rules and Policies. IV – Operational risk The possibility of losses from failure of, insufficient or inadequate internal processes, people and systems, or from external events impacting the realization of strategic, tactical or operational objectives. It includes the legal risk, associated with the inadequacy or deficiency in agreements signed by the institution, as well as sanctions for failing to meet legal provisions and compensation for damages to third parties arising from activities performed by the institution. The managers of executive areas adopt corporate methodologies developed and made available by the internal controls, compliance and operational risk area. As part of governance of risk management process, consolidated reports on risk monitoring, controls, action plans and operating losses are periodically presented to the business areas’ executives. In line with the principles of CMN Resolution No. 4,557, of February 2017, 23, the document entitled “Public Access Report – Integrated Management of Operational Risk/ Internal Controls/ Compliance“, a summarized version of the institutional operational risk management policy, may be accessed on the website www.itau.com.br/investor-relations, section Itaú Unibanco, “Corporate Governance”, Rules and Policies. V - Social and environmental risk Risk of potential losses due to exposure to social and environmental damages arising from the performance of its activities. The social and environmental risk management is carried out by the first line of defense in its daily operations, with the technical assessment of the legal and risk areas, which have a technical dedicated team. Business units also have governance for approval of new products, which includes the assessment of the social and environmental risk, therefore ensuring compliance with this requirement for all new products approved by the institution. Governance still has the Social and Environmental Risk Committee, which main duty is to guide the institutional understanding related to exposure to social and environmental risk for the institution’s activities. Mitigation actions concerning the social and environmental risk are carried out by mapping processes, risks and controls, monitoring new regulations on the subject, and recording any occurrences in internal databases. In addition to identification, the phases of prioritization, response, monitoring and reporting of assessed risks supplement this risk monitoring at ITAÚ UNIBANCO HOLDING CONSOLIDATED. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.71

Further details on the Social and environmental risk, which is not an integral part of the financial statements, can be viewed at www.itau.com.br/investor-relations, under “Reports” / Pillar 3 and Global Systemically Important Banks / Risk and Capital Management Report. c) Capital management governance ITAÚ UNIBANCO HOLDING CONSOLIDATED is subject to the requirements of BACEN, which determines minimum capital requirements, procedures to assess information on globally systemic important banks (G-SIB), fixed asset limits, loan limits, accounting practices and require banks to conform to the regulation based on the Basel Accord for capital adequacy purposes. Additionally, the CNSP and SUSEP issue regulations on capital requirements that impact our insurance operations, and private pension and capitalization plans. I - Composition of capital The Referential Equity (PR) used to monitor the compliance with the operational limits imposed by BACEN is the sum of three items, namely: · Common Equity Tier I: the sum of capital, reserves and retained earnings, less deductions and prudential adjustments. · Additional Tier I Capital: consists of instruments of a perpetual nature, which meet eligibility requirements. Together with Common Equity Tier I it makes up Tier I; · Tier II: consists of subordinated debt instruments with defined maturity dates that meet eligibility requirements. Composition of Referential Equity 12/31/2018 12/31/2017 Stockholders’ equity attributable to controlling interests 131,756,574 126,923,600 Non-controlling interests 12,276,180 11,942,502 Change in interest in subsidiaries in a capital transaction 98,028 1,481,888 Consolidated stockholders’ equity (BACEN) 144,130,782 140,347,990 Common Equity Tier I prudential adjustments (20,772,746) (17,951,725) Common Equity Tier I 123,358,036 122,396,265 Instruments Eligible to comprise Additional Tier I 7,701,570 - Additional Tier I Prudential Adjustments 94,858 57,062 Additional Tier I Capital 7,796,428 57,062 Tier I (Common Equity Tier I + Additional Tier I Capital) 131,154,464 122,453,327 Instruments Eligible to comprise Tier II 15,778,051 19,722,563 Tier II Prudential Adjustments 95,620 76,083 Tier II 15,873,671 19,798,646 Referential Equity (Tier I + Tier II) 147,028,135 142,251,973 II - Capital requirements in place and in progress Minimum capital requirements are expressed as indexes that relate available capital and risk-weighted assets (RWA). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.72 Further details on the Social and environmental risk, which is not an integral part of the financial statements, can be viewed at www.itau.com.br/investor-relations, under “Reports” / Pillar 3 and Global Systemically Important Banks / Risk and Capital Management Report. c) Capital management governance ITAÚ UNIBANCO HOLDING CONSOLIDATED is subject to the requirements of BACEN, which determines minimum capital requirements, procedures to assess information on globally systemic important banks (G-SIB), fixed asset limits, loan limits, accounting practices and require banks to conform to the regulation based on the Basel Accord for capital adequacy purposes. Additionally, the CNSP and SUSEP issue regulations on capital requirements that impact our insurance operations, and private pension and capitalization plans. I - Composition of capital The Referential Equity (PR) used to monitor the compliance with the operational limits imposed by BACEN is the sum of three items, namely: · Common Equity Tier I: the sum of capital, reserves and retained earnings, less deductions and prudential adjustments. · Additional Tier I Capital: consists of instruments of a perpetual nature, which meet eligibility requirements. Together with Common Equity Tier I it makes up Tier I; · Tier II: consists of subordinated debt instruments with defined maturity dates that meet eligibility requirements. Composition of Referential Equity 12/31/2018 12/31/2017 Stockholders’ equity attributable to controlling interests 131,756,574 126,923,600 Non-controlling interests 12,276,180 11,942,502 Change in interest in subsidiaries in a capital transaction 98,028 1,481,888 Consolidated stockholders’ equity (BACEN) 144,130,782 140,347,990 Common Equity Tier I prudential adjustments (20,772,746) (17,951,725) Common Equity Tier I 123,358,036 122,396,265 Instruments Eligible to comprise Additional Tier I 7,701,570 - Additional Tier I Prudential Adjustments 94,858 57,062 Additional Tier I Capital 7,796,428 57,062 Tier I (Common Equity Tier I + Additional Tier I Capital) 131,154,464 122,453,327 Instruments Eligible to comprise Tier II 15,778,051 19,722,563 Tier II Prudential Adjustments 95,620 76,083 Tier II 15,873,671 19,798,646 Referential Equity (Tier I + Tier II) 147,028,135 142,251,973 II - Capital requirements in place and in progress Minimum capital requirements are expressed as indexes that relate available capital and risk-weighted assets (RWA). Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.72

Schedule for Basel III implementation st As from January 1 (1) 2017 2018 2019 Common Equity Tier I 4.5% 4.5% 4.5% Tier I 6.0% 6.0% 6.0% Total capital 9.25% 8.625% 8.0% Additional Common Equity Tier I (ACP) 1.50% 2.375% 3.5% Conservation 1.25% 1.875% 2.5% (2) Countercyclical 0% 0% 0% (3) Systemic 0.25% 0.5% 1.0% Common Equity Tier I + ACP 6.0% 6.875% 8.0% Total capital + ACP 10.75% 11.0% 11.5% Prudential adjustment deductions 80% 100% 100% (1) Petition valid after of January 1st, 2019. (2) ACP is triggered during the credit cycle expansion phase. Furthermore, in the event of increase in ACPCountercyclical, the new percentage will be effective Countercyclical only twelve months after it is announced. (3) Calculation of ACP associates the systemic importance, represented by the institution’s total exposure, to Gross Domestic Product (GDP). Systemic III - Risk-Weighted Assets (RWA) For assessing the minimum capital requirements, the RWA must be calculated by adding the following risk exposures: RWA = RWA + RWA + RWA CPAD MINT OPAD 12/31/2018 12/31/2017 (1) 714,968,649 660,516,354 Credit risk (RWA ) CPAD (2) Market risk (RWA ) 30,270,332 32,914,851 MINT (3) 72,833,292 63,276,519 Operacional risk (RWAP ) OPAD Total risk-weighted assets 818,072,273 756,707,724 (1) Portion related to exposures to credit risk, calculated using the standardized approach; (2) Portion related to capital required for market risk, composed of the maximum between the internal model and 80% of the standardized model, regulated by BACEN Circulars nº 3,646 and nº 3,674; (3) Portion related to capital required for operational risk, calculated based on the standardized approach. The tables below present the breakdown of credit, market and operational risk weighted assets, respectively: Credit risk 12/31/2018 12/31/2017 Marketable securities 40,275,550 45,629,423 Loan operations – Retail 124,356,449 114,141,186 Loan operations – Non-retail 256,957,970 240,814,547 Joint Liabilities - Retail 140,492 172,251 Joint Liabilities - Non-Retail 43,288,454 45,405,251 Loan commitments – Retail 33,871,034 31,057,682 Loan commitments – Non-retail 10,673,277 9,017,086 Derivatives – Future potential gain 4,193,025 5,457,462 Agency Transition 3,330,357 - Other exposures 197,882,041 168,821,467 Total 714,968,649 660,516,354 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.73 Schedule for Basel III implementation st As from January 1 (1) 2017 2018 2019 Common Equity Tier I 4.5% 4.5% 4.5% Tier I 6.0% 6.0% 6.0% Total capital 9.25% 8.625% 8.0% Additional Common Equity Tier I (ACP) 1.50% 2.375% 3.5% Conservation 1.25% 1.875% 2.5% (2) Countercyclical 0% 0% 0% (3) Systemic 0.25% 0.5% 1.0% Common Equity Tier I + ACP 6.0% 6.875% 8.0% Total capital + ACP 10.75% 11.0% 11.5% Prudential adjustment deductions 80% 100% 100% (1) Petition valid after of January 1st, 2019. (2) ACP is triggered during the credit cycle expansion phase. Furthermore, in the event of increase in ACPCountercyclical, the new percentage will be effective Countercyclical only twelve months after it is announced. (3) Calculation of ACP associates the systemic importance, represented by the institution’s total exposure, to Gross Domestic Product (GDP). Systemic III - Risk-Weighted Assets (RWA) For assessing the minimum capital requirements, the RWA must be calculated by adding the following risk exposures: RWA = RWA + RWA + RWA CPAD MINT OPAD 12/31/2018 12/31/2017 (1) 714,968,649 660,516,354 Credit risk (RWA ) CPAD (2) Market risk (RWA ) 30,270,332 32,914,851 MINT (3) 72,833,292 63,276,519 Operacional risk (RWAP ) OPAD Total risk-weighted assets 818,072,273 756,707,724 (1) Portion related to exposures to credit risk, calculated using the standardized approach; (2) Portion related to capital required for market risk, composed of the maximum between the internal model and 80% of the standardized model, regulated by BACEN Circulars nº 3,646 and nº 3,674; (3) Portion related to capital required for operational risk, calculated based on the standardized approach. The tables below present the breakdown of credit, market and operational risk weighted assets, respectively: Credit risk 12/31/2018 12/31/2017 Marketable securities 40,275,550 45,629,423 Loan operations – Retail 124,356,449 114,141,186 Loan operations – Non-retail 256,957,970 240,814,547 Joint Liabilities - Retail 140,492 172,251 Joint Liabilities - Non-Retail 43,288,454 45,405,251 Loan commitments – Retail 33,871,034 31,057,682 Loan commitments – Non-retail 10,673,277 9,017,086 Derivatives – Future potential gain 4,193,025 5,457,462 Agency Transition 3,330,357 - Other exposures 197,882,041 168,821,467 Total 714,968,649 660,516,354 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.73

Market Risk (1) (1) 12/31/2018 12/31/2017 Market Risk Weighted Assets - Standard Aproach (RWAM ) 37,837,915 32,892,766 PAD Operations subject to interest rate variation 30,286,017 31,076,008 Fixed rate denominated in reais 2,025,961 6,118,736 Foreign exchange coupons 19,633,121 17,153,167 Price index coupon 8,626,934 7,804,105 Interest rate coupon 1 1 Operations subject to commodity price variation 389,398 361,109 Operations subject to stock price variation 361,948 239,091 Operations subject to risk exposures in gold, foreign currency and foreign 6,800,552 1,216,558 (1) Minimum Market Risk Weighted Assets - Standard Aproach (RWAM ) (a) 30,270,332 26,314,213 PAD Market Risk Weighted Assets calculated based on internal methodology (b) 22,871,345 32,914,851 Reduction of Market Risk Weighted Assets due to Internal Models Aproach (IMA) ( 7,567,583) - Market Risk Weighted Assets (RWA ) - maximum of (a) and (b) 30,270,332 32,914,851 MINT (1) Calculated based on internal models, with maximum saving possibility of 20% of the standard model. Operational Risk 12/31/2018 12/31/2017 Operational Risk-Weighted Assets (RWA ) 72,833,292 63,276,519 OPAD Retail 12,822,246 11,870,427 Commercial 26,214,251 24,857,050 Corporate finance 2,697,347 2,663,324 Negotiation and sales 11,736,501 7,433,500 Payments and settlements 8,281,707 7,532,335 Financial agent services 4,342,495 3,892,102 Asset management 6,714,978 5,009,943 Retail brokerage 23,767 17,838 IV – Capital adequacy The Board of Directors is the body responsible for approving the capital management institutional policy and guidelines for the capitalization level of ITAÚ UNIBANCO HOLDING CONSOLIDATED. The Board is also responsible for the full approval of the ICAAP (Internal Capital Adequacy Assessment Process) report, which purpose is to assess the capital adequacy of ITAÚ UNIBANCO HOLDING CONSOLIDATED. The result of the last ICAAP – conducted with the base date December 2017 – indicated that ITAÚ UNIBANCO HOLDING CONSOLIDATED has, in addition to capital to face all material risks, a significant capital surplus, thus assuring the institution’s equity soundness. In order to ensure the soundness of ITAÚ UNIBANCO HOLDING CONSOLIDATED and the availability of capital to support business growth, the institution maintains PR levels above the minimum level required to face risks, as evidenced by the Common Equity, Tier I Capital and Basel ratios. The Basel Ratio reached 18.0% at December 31, 2018, with a reduction of 0.8 p.p. as compared to December 31, 2017 mainly due to the payment of additional dividends related to the 2017 result. Additionally, ITAÚ UNIBANCO HOLDING CONSOLIDATED has a surplus in relation to the minimum Referential Equity required in the amount of R$ 76,469,402, higher than the ACP of R$ 19,429,216, widely covered by the available capital. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.74 Market Risk (1) (1) 12/31/2018 12/31/2017 Market Risk Weighted Assets - Standard Aproach (RWAM ) 37,837,915 32,892,766 PAD Operations subject to interest rate variation 30,286,017 31,076,008 Fixed rate denominated in reais 2,025,961 6,118,736 Foreign exchange coupons 19,633,121 17,153,167 Price index coupon 8,626,934 7,804,105 Interest rate coupon 1 1 Operations subject to commodity price variation 389,398 361,109 Operations subject to stock price variation 361,948 239,091 Operations subject to risk exposures in gold, foreign currency and foreign 6,800,552 1,216,558 (1) Minimum Market Risk Weighted Assets - Standard Aproach (RWAM ) (a) 30,270,332 26,314,213 PAD Market Risk Weighted Assets calculated based on internal methodology (b) 22,871,345 32,914,851 Reduction of Market Risk Weighted Assets due to Internal Models Aproach (IMA) ( 7,567,583) - Market Risk Weighted Assets (RWA ) - maximum of (a) and (b) 30,270,332 32,914,851 MINT (1) Calculated based on internal models, with maximum saving possibility of 20% of the standard model. Operational Risk 12/31/2018 12/31/2017 Operational Risk-Weighted Assets (RWA ) 72,833,292 63,276,519 OPAD Retail 12,822,246 11,870,427 Commercial 26,214,251 24,857,050 Corporate finance 2,697,347 2,663,324 Negotiation and sales 11,736,501 7,433,500 Payments and settlements 8,281,707 7,532,335 Financial agent services 4,342,495 3,892,102 Asset management 6,714,978 5,009,943 Retail brokerage 23,767 17,838 IV – Capital adequacy The Board of Directors is the body responsible for approving the capital management institutional policy and guidelines for the capitalization level of ITAÚ UNIBANCO HOLDING CONSOLIDATED. The Board is also responsible for the full approval of the ICAAP (Internal Capital Adequacy Assessment Process) report, which purpose is to assess the capital adequacy of ITAÚ UNIBANCO HOLDING CONSOLIDATED. The result of the last ICAAP – conducted with the base date December 2017 – indicated that ITAÚ UNIBANCO HOLDING CONSOLIDATED has, in addition to capital to face all material risks, a significant capital surplus, thus assuring the institution’s equity soundness. In order to ensure the soundness of ITAÚ UNIBANCO HOLDING CONSOLIDATED and the availability of capital to support business growth, the institution maintains PR levels above the minimum level required to face risks, as evidenced by the Common Equity, Tier I Capital and Basel ratios. The Basel Ratio reached 18.0% at December 31, 2018, with a reduction of 0.8 p.p. as compared to December 31, 2017 mainly due to the payment of additional dividends related to the 2017 result. Additionally, ITAÚ UNIBANCO HOLDING CONSOLIDATED has a surplus in relation to the minimum Referential Equity required in the amount of R$ 76,469,402, higher than the ACP of R$ 19,429,216, widely covered by the available capital. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.74

12/31/2018 12/31/2017 Amount Ratio Amount Ratio Required Current Required Current Required Current Required Current Common Equity Tier I 36,813,252 123,358,036 4.5% 15.1% 34,051,847 122,396,265 4.5% 16.2% Additional Tier I Capital - 7,796,428 - - - 57,062 - - Tier I (Common Equity Tier I + Additional Tier I Capital) 49,084,336 131,154,464 6.0% 16.0% 45,402,463 122,453,327 6.0% 16.2% Tier II - 15,873,671 - - - 19,798,646 - - Referential Equity (Tier I + Tier II) 70,558,733 147,028,135 8.625% 18.0% 69,995,465 142,251,973 9.25% 18.8% Amount Required for Additional Common Equity Tier I (ACP) 19,429,216 2.375% 11,350,616 1.5% The fixed assets ratio shows the commitment percentage of adjusted Referential Equity with adjusted permanent assets. ITAÚ UNIBANCO HOLDING CONSOLIDATED falls within the maximum limit of 50% of adjusted Referential Equity set forth by BACEN. At 12/31/2018, fixed assets ratio reached 25.9%, showing a surplus of R$ 35,447,166. Further details on Risk and Capital Management of ITAÚ UNIBANCO HOLDING CONSOLIDATED and indicators of the Global Systemic Importance Index, which are not included in the financial statements, may be viewed on www.itau.com.br/relacoes-com-investidores “Reports”/ Pillar 3 and Global Systemically Important Banks. Note 18 –Supplementary information a) Insurance policy - ITAÚ UNIBANCO HOLDING PRUDENTIAL despite the low risk exposure due to a physical non-concentration of their assets, have the policy to guarantee their valuables and assets at amounts considered sufficient to cover possible claims. b) Foreign currency – The balances in Reais linked to the foreign currencies were: 12/31/2018 12/31/2017 Permanent foreign investments 48,984,164 53,643,405 Net amount of other assets and liabilities indexed to foreign currency, including (123,428,896) (136,526,048) derivatives Net foreign exchange position (74,444,732) (82,882,643) The net foreign exchange position, considering the tax effects on the net balance of other assets and liabilities indexed to foreign currencies, reflects the low exposure to exchange variations. c) Agreements for offset and settlement of liabilities in the scope of the National Financial System – Offset agreements were entered into in the scope of derivative contracts, as well as agreements for offset and settlement of receivables and payables pursuant to CMN Resolution No. 3.263, of February 24, 2005, which purpose is to enable the offsetting of credits and debits maintained with the same counterparty, and in which the maturity dates of receivables and payables can be advanced to the date an event of default by one of the parties occurs or in case of the bankruptcy of the debtor. d) Acquisition of minority interest in Edenred Participações S.A. On September 4, 2018, ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its controlled company ITAÚ UNIBANCO, entered into, with Edenred Participações S.A. (EDENRED) a strategic partnership in the benefit market to workers governed mainly by PAT – Worker’s Meal Program. EDENRED is controlled by Ticket Serviços S.A. (TICKET) in Brazil. The strategic partnership will enable ITAÚ UNIBANCO to add the benefits issued by TICKET to its current offer of products and services focused on clients of wholesale, medium, micro and small companies segments. In addition, ITAÚ UNIBANCO will make a minority investment of 11% in TICKET, through a capital increase with contribution of (i) cash, equivalent to said interest in the company's equity value, and (ii) right to exclusive distribution of Ticket Restaurante, Ticket Alimentação, Ticket Cultura and Ticket Transporte products to the Bank’s legal entities base during the partnership term. TICKET will continue distributing its products through other commercial agreements and will continue under EDENRED’s control and management. The effective acquisitions and financial settlements will occur after the required regulatory approvals. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.75 12/31/2018 12/31/2017 Amount Ratio Amount Ratio Required Current Required Current Required Current Required Current Common Equity Tier I 36,813,252 123,358,036 4.5% 15.1% 34,051,847 122,396,265 4.5% 16.2% Additional Tier I Capital - 7,796,428 - - - 57,062 - - Tier I (Common Equity Tier I + Additional Tier I Capital) 49,084,336 131,154,464 6.0% 16.0% 45,402,463 122,453,327 6.0% 16.2% Tier II - 15,873,671 - - - 19,798,646 - - Referential Equity (Tier I + Tier II) 70,558,733 147,028,135 8.625% 18.0% 69,995,465 142,251,973 9.25% 18.8% Amount Required for Additional Common Equity Tier I (ACP) 19,429,216 2.375% 11,350,616 1.5% The fixed assets ratio shows the commitment percentage of adjusted Referential Equity with adjusted permanent assets. ITAÚ UNIBANCO HOLDING CONSOLIDATED falls within the maximum limit of 50% of adjusted Referential Equity set forth by BACEN. At 12/31/2018, fixed assets ratio reached 25.9%, showing a surplus of R$ 35,447,166. Further details on Risk and Capital Management of ITAÚ UNIBANCO HOLDING CONSOLIDATED and indicators of the Global Systemic Importance Index, which are not included in the financial statements, may be viewed on www.itau.com.br/relacoes-com-investidores “Reports”/ Pillar 3 and Global Systemically Important Banks. Note 18 –Supplementary information a) Insurance policy - ITAÚ UNIBANCO HOLDING PRUDENTIAL despite the low risk exposure due to a physical non-concentration of their assets, have the policy to guarantee their valuables and assets at amounts considered sufficient to cover possible claims. b) Foreign currency – The balances in Reais linked to the foreign currencies were: 12/31/2018 12/31/2017 Permanent foreign investments 48,984,164 53,643,405 Net amount of other assets and liabilities indexed to foreign currency, including (123,428,896) (136,526,048) derivatives Net foreign exchange position (74,444,732) (82,882,643) The net foreign exchange position, considering the tax effects on the net balance of other assets and liabilities indexed to foreign currencies, reflects the low exposure to exchange variations. c) Agreements for offset and settlement of liabilities in the scope of the National Financial System – Offset agreements were entered into in the scope of derivative contracts, as well as agreements for offset and settlement of receivables and payables pursuant to CMN Resolution No. 3.263, of February 24, 2005, which purpose is to enable the offsetting of credits and debits maintained with the same counterparty, and in which the maturity dates of receivables and payables can be advanced to the date an event of default by one of the parties occurs or in case of the bankruptcy of the debtor. d) Acquisition of minority interest in Edenred Participações S.A. On September 4, 2018, ITAÚ UNIBANCO HOLDING PRUDENTIAL, through its controlled company ITAÚ UNIBANCO, entered into, with Edenred Participações S.A. (EDENRED) a strategic partnership in the benefit market to workers governed mainly by PAT – Worker’s Meal Program. EDENRED is controlled by Ticket Serviços S.A. (TICKET) in Brazil. The strategic partnership will enable ITAÚ UNIBANCO to add the benefits issued by TICKET to its current offer of products and services focused on clients of wholesale, medium, micro and small companies segments. In addition, ITAÚ UNIBANCO will make a minority investment of 11% in TICKET, through a capital increase with contribution of (i) cash, equivalent to said interest in the company's equity value, and (ii) right to exclusive distribution of Ticket Restaurante, Ticket Alimentação, Ticket Cultura and Ticket Transporte products to the Bank’s legal entities base during the partnership term. TICKET will continue distributing its products through other commercial agreements and will continue under EDENRED’s control and management. The effective acquisitions and financial settlements will occur after the required regulatory approvals. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.75

e) Subsequent Event Issuance Perpetual Subordinated Financial In January 2019, ITAÚ UNIBANCO HOLDING issued R$ 3.05 billion in Perpetual Subordinated Financial bills, in private negotiations with professional investors. The Financial Bills have repurchase option as from 2024, in addition to being eligible to compose the Supplementary Capital of Referential Equity of ITAÚ UNIBANCO HOLDING CONSOLIDATED, with an estimated impact of 0.4 p.p. in its Tier I Capitalization ratio. Both the repurchase and composition of capital are subject to authorization of the Central Bank of Brazil. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.76 e) Subsequent Event Issuance Perpetual Subordinated Financial In January 2019, ITAÚ UNIBANCO HOLDING issued R$ 3.05 billion in Perpetual Subordinated Financial bills, in private negotiations with professional investors. The Financial Bills have repurchase option as from 2024, in addition to being eligible to compose the Supplementary Capital of Referential Equity of ITAÚ UNIBANCO HOLDING CONSOLIDATED, with an estimated impact of 0.4 p.p. in its Tier I Capitalization ratio. Both the repurchase and composition of capital are subject to authorization of the Central Bank of Brazil. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 4.76

Itaú Unibanco Holding S.A. and subsidiaries - Prudential Conglomerate Financial statements at December 31, 2018 and independent auditor's report Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.3 Itaú Unibanco Holding S.A. and subsidiaries - Prudential Conglomerate Financial statements at December 31, 2018 and independent auditor's report Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.3

(A free translation of the original in Portuguese) Independent auditor's report on the consolidated financial statements of the Prudential Conglomerate To the Board of Directors and Stockholders Itaú Unibanco Holding S.A. Opinion We have audited the accompanying consolidated financial statements of the Prudential Conglomerate of Itaú Unibanco Holding S.A. (the Bank ), which comprise the prudential consolidated balance sheet as at December 31, 2018 and the prudential consolidated statements of income, changes in stockholders´equity and cash flows for the six-month and year then ended, and notes to the financial statements, including a summary of significant accounting policies. These special purpose consolidated financial statements were prepared in accordance with specified procedures as established in Resolution 4,280, from October 31, 2013, issued by National Monetary Council (CMN), and supplementary regulations of the Brazilian Central Bank (BACEN), described in Note 2 - Presentation and consolidation of the financial statements . In our opinion, the consolidated financial statements of the Prudential Conglomerate referred to above present fairly, in all material respects, the financial position of Itaú Unibanco Holding S.A. as at December 31, 2018, and the consolidated financial performance and cash flows, for the year and six-month period then ended, in accordance with the provisions for the preparation of consolidated financial statements of prudential conglomerates established by Resolution 4,280 of the CMN and supplementary regulations of BACEN, for the preparation of these special purpose consolidated financial statements, as described in the Notes 2 - Presentation and consolidation of the financial statements and 4 - Summary of the main accounting practices to the consolidated financial statements. Basis for opinion We conducted our audit in accordance with Brazilian and International Standards on Auditing. Our responsibilities under those standards are further described in the Auditor's responsibilities for the audit of the consolidated financial statements”. We are independent of the Bank and of its subsidiaries in accordance with the ethical requirements established in the Accountant’s Code of Professional Ethics and Professional Standards issued by the Brazilian Federal Accounting Council, and we have fulfilled other ethical responsibilities in accordance with these requirements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.4 (A free translation of the original in Portuguese) Independent auditor's report on the consolidated financial statements of the Prudential Conglomerate To the Board of Directors and Stockholders Itaú Unibanco Holding S.A. Opinion We have audited the accompanying consolidated financial statements of the Prudential Conglomerate of Itaú Unibanco Holding S.A. (the Bank ), which comprise the prudential consolidated balance sheet as at December 31, 2018 and the prudential consolidated statements of income, changes in stockholders´equity and cash flows for the six-month and year then ended, and notes to the financial statements, including a summary of significant accounting policies. These special purpose consolidated financial statements were prepared in accordance with specified procedures as established in Resolution 4,280, from October 31, 2013, issued by National Monetary Council (CMN), and supplementary regulations of the Brazilian Central Bank (BACEN), described in Note 2 - Presentation and consolidation of the financial statements . In our opinion, the consolidated financial statements of the Prudential Conglomerate referred to above present fairly, in all material respects, the financial position of Itaú Unibanco Holding S.A. as at December 31, 2018, and the consolidated financial performance and cash flows, for the year and six-month period then ended, in accordance with the provisions for the preparation of consolidated financial statements of prudential conglomerates established by Resolution 4,280 of the CMN and supplementary regulations of BACEN, for the preparation of these special purpose consolidated financial statements, as described in the Notes 2 - Presentation and consolidation of the financial statements and 4 - Summary of the main accounting practices to the consolidated financial statements. Basis for opinion We conducted our audit in accordance with Brazilian and International Standards on Auditing. Our responsibilities under those standards are further described in the Auditor's responsibilities for the audit of the consolidated financial statements”. We are independent of the Bank and of its subsidiaries in accordance with the ethical requirements established in the Accountant’s Code of Professional Ethics and Professional Standards issued by the Brazilian Federal Accounting Council, and we have fulfilled other ethical responsibilities in accordance with these requirements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.4

Emphasis of matter - basis of preparation of the consolidated financial statements of the Prudential Conglomerate Without modifying our opinion, we draw attention to the Note 2 - Presentation and consolidation of the financial statements , which discloses the following information: The consolidated financial statements of the Prudential Conglomerate were prepared by management to comply with the requirements of Resolution 4,280 of the CMN, and supplementary regulations of BACEN. Consequently, our report on these consolidated financial statements was prepared exclusively for the compliance with these specific requirements and, accordingly, may not be suitable for another purpose. Others matters Itaú Unibanco Holding S.A. prepared a set of parent company and consolidated financial statements for general purposes referring to the year and the six-month period ended in December 31, 2018, in accordance with accounting practices adopted in Brazil, applicable to institutions authorized to operate by the Brazilian Central Bank (BACEN). Our independent auditor's report on those statements, dated February 4, 2019, was unmodified. Other information accompanying the consolidated financial statements and the auditor's report The Bank’s management is responsible for the other information, which comprise the Management Report. Our opinion on the consolidated financial statements does not cover the Management report, and we do not express any form of audit conclusion thereon. In connection with the audit of the consolidated financial statements, our responsibility is to read the Management Report and, in doing so, consider whether this report is materially inconsistent with the financial statements or our knowledge obtained in the audit or otherwise appear to be materially misstated. If, based on the work we have performed, we conclude that there is a material misstatement in the Management Report, we are required to report that fact. We have nothing to report in this regard. Responsibilities of management and those charged with governance for the consolidated financial statements Management is responsible for the preparation and fair presentation of the consolidated financial statements of the Prudential Conglomerate of Itaú Unibanco Holding S.A. Conglomerate in accordance with Resolution 4,280 of the National Monetary Council (CMN), and supplementary regulations of the Brazilian Central Bank (BACEN), whose main criteria and accounting policies are disclosed in the Notes 2 - Presentation and consolidation of the financial statements and 4 - Summary of the main accounting practices , and for such internal control as management determines is necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud or error. In preparing the consolidated financial statements, management is responsible for assessing the Bank's ability to continue as going concerns, disclosing, as applicable, matters related to going concern and using Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.5 Emphasis of matter - basis of preparation of the consolidated financial statements of the Prudential Conglomerate Without modifying our opinion, we draw attention to the Note 2 - Presentation and consolidation of the financial statements , which discloses the following information: The consolidated financial statements of the Prudential Conglomerate were prepared by management to comply with the requirements of Resolution 4,280 of the CMN, and supplementary regulations of BACEN. Consequently, our report on these consolidated financial statements was prepared exclusively for the compliance with these specific requirements and, accordingly, may not be suitable for another purpose. Others matters Itaú Unibanco Holding S.A. prepared a set of parent company and consolidated financial statements for general purposes referring to the year and the six-month period ended in December 31, 2018, in accordance with accounting practices adopted in Brazil, applicable to institutions authorized to operate by the Brazilian Central Bank (BACEN). Our independent auditor's report on those statements, dated February 4, 2019, was unmodified. Other information accompanying the consolidated financial statements and the auditor's report The Bank’s management is responsible for the other information, which comprise the Management Report. Our opinion on the consolidated financial statements does not cover the Management report, and we do not express any form of audit conclusion thereon. In connection with the audit of the consolidated financial statements, our responsibility is to read the Management Report and, in doing so, consider whether this report is materially inconsistent with the financial statements or our knowledge obtained in the audit or otherwise appear to be materially misstated. If, based on the work we have performed, we conclude that there is a material misstatement in the Management Report, we are required to report that fact. We have nothing to report in this regard. Responsibilities of management and those charged with governance for the consolidated financial statements Management is responsible for the preparation and fair presentation of the consolidated financial statements of the Prudential Conglomerate of Itaú Unibanco Holding S.A. Conglomerate in accordance with Resolution 4,280 of the National Monetary Council (CMN), and supplementary regulations of the Brazilian Central Bank (BACEN), whose main criteria and accounting policies are disclosed in the Notes 2 - Presentation and consolidation of the financial statements and 4 - Summary of the main accounting practices , and for such internal control as management determines is necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud or error. In preparing the consolidated financial statements, management is responsible for assessing the Bank's ability to continue as going concerns, disclosing, as applicable, matters related to going concern and using Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.5

the going concern basis of accounting unless management either intends to liquidate the Bank or to cease operations, or has no realistic alternative but to do so. Those charged with governance in the Bank and its subsidiaries are responsible for overseeing the financial reporting process. Auditor's responsibilities for the audit of the consolidated financial statements Our objectives are to obtain reasonable assurance about whether the consolidated financial statements of the Prudential Conglomerate, prepared in accordance with Resolution 4,280 of the National Monetary Council (CMN), and supplementary regulations of the Brazilian Central Bank (BACEN), as a whole, are free from material misstatement, whether due to fraud or error, and to issue an auditor's report that includes our opinion. Reasonable assurance is a high level of assurance, but is not a guarantee that the audit conducted in accordance with the Brazilian and International Standards on Auditing will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these financial statements. As part of an audit in accordance with Brazilian and International Standards on Auditing, whereas the NBC TA 800 (Special Conditions – Audit Financial Statements in accordance with special purpose accounting conceptual structures), we exercise professional judgment and maintain professional skepticism throughout the audit. We also: • Identify and assess the risks of material misstatement of the consolidated financial statements, whether due to fraud or error, design and perform audit procedures responsive to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control. • Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the internal control of the Bank and its subsidiaries. • Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and related disclosures made by management. • Conclude on the appropriateness of management's use of the going concern basis of accounting and, based on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Bank's ability to continue as going concerns. If we conclude that a material uncertainty exists, we are required to draw attention in our auditor's report to the related disclosures in the consolidated financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditor's report. However, future events or conditions may cause the Bank to cease to continue as going concerns. • Evaluate the overall presentation, structure and content of the consolidated financial statements, including the disclosures, and whether the consolidated financial statements represent the underlying transactions and events in a manner that achieves fair presentation. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.6 the going concern basis of accounting unless management either intends to liquidate the Bank or to cease operations, or has no realistic alternative but to do so. Those charged with governance in the Bank and its subsidiaries are responsible for overseeing the financial reporting process. Auditor's responsibilities for the audit of the consolidated financial statements Our objectives are to obtain reasonable assurance about whether the consolidated financial statements of the Prudential Conglomerate, prepared in accordance with Resolution 4,280 of the National Monetary Council (CMN), and supplementary regulations of the Brazilian Central Bank (BACEN), as a whole, are free from material misstatement, whether due to fraud or error, and to issue an auditor's report that includes our opinion. Reasonable assurance is a high level of assurance, but is not a guarantee that the audit conducted in accordance with the Brazilian and International Standards on Auditing will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these financial statements. As part of an audit in accordance with Brazilian and International Standards on Auditing, whereas the NBC TA 800 (Special Conditions – Audit Financial Statements in accordance with special purpose accounting conceptual structures), we exercise professional judgment and maintain professional skepticism throughout the audit. We also: • Identify and assess the risks of material misstatement of the consolidated financial statements, whether due to fraud or error, design and perform audit procedures responsive to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control. • Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the internal control of the Bank and its subsidiaries. • Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and related disclosures made by management. • Conclude on the appropriateness of management's use of the going concern basis of accounting and, based on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Bank's ability to continue as going concerns. If we conclude that a material uncertainty exists, we are required to draw attention in our auditor's report to the related disclosures in the consolidated financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditor's report. However, future events or conditions may cause the Bank to cease to continue as going concerns. • Evaluate the overall presentation, structure and content of the consolidated financial statements, including the disclosures, and whether the consolidated financial statements represent the underlying transactions and events in a manner that achieves fair presentation. Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.6

• Obtain sufficient appropriate audit evidence regarding the financial information of the entities or business activities within the Consolidated to express an opinion on the consolidated financial statements. We are responsible for the direction, supervision and performance of the group audit. We remain solely responsible for our audit opinion. We communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal control that we identify during our audit. São Paulo, February 22, 2019 PricewaterhouseCoopers Auditores Independentes CRC 2SP000160/O-5 Washington Luiz Pereira Cavalcanti Contador CRC 1SP172940/O-6 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.7 • Obtain sufficient appropriate audit evidence regarding the financial information of the entities or business activities within the Consolidated to express an opinion on the consolidated financial statements. We are responsible for the direction, supervision and performance of the group audit. We remain solely responsible for our audit opinion. We communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal control that we identify during our audit. São Paulo, February 22, 2019 PricewaterhouseCoopers Auditores Independentes CRC 2SP000160/O-5 Washington Luiz Pereira Cavalcanti Contador CRC 1SP172940/O-6 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.7

Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.1 Itaú Unibanco Holding S.A. – Prudencial Financial Statements – December 31, 2018 5.1