6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of May 2016

Commission File Number: 001-15276

Itaú Unibanco Holding S.A.

(Exact name of registrant as specified in its charter)

Itaú Unibanco Holding S.A.

(Translation of Registrant’s Name into English)

Praça Alfredo Egydio de Souza Aranha, 100-Torre Conceicao - CEP

04344-902 São Paulo, SP, Brazil

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F: x  Form 40-F: ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes: ¨  No: x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes: ¨  No: x

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes: ¨   No: x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):
82-___________________. 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

	Itaú Unibanco Holding S.A.
		(Registrant)
Date: May 3, 2016	By:	/s/ Marcelo Kopel
		Name:	Marcelo Kopel
		Title:	Investor Relations Officer

By:	/s/ Eduardo Mazzilli de Vassimon
	Name:	Eduardo Mazzilli de Vassimon
	Title:	Chief Financial Officer

EXHIBIT INDEX

99.1 SUMMARIZED MINUTES OF THE MEETING OF THE BOARD OF DIRECTORS OF MAY 2, 2016

EX-99.1

Exhibit 99.1

Itaú Unibanco Holding S.A.

CNPJ 60.872.504/0001-23 A Publicly Listed Company NIRE 35300010230

SUMMARIZED MINUTES OF THE MEETING OF THE BOARD OF DIRECTORS OF

MAY 2, 2016

DATE, TIME AND PLACE: On May 2, 2016, at 5:00 p.m. at Praça Alfredo Egydio de Souza Aranha, 100, Torre Olavo Setubal, Piso Itaú Unibanco in the city and state of São Paulo.

CHAIRMAN: Pedro Moreira Salles.

QUORUM: The majority of elected members.

RESOLUTION UNANIMOUSLY ADOPTED:

Opening the meeting, the Directors examined the financial statements for the period from January to March 2016 and the subject of: (i) a favorable opinion of the Fiscal Council; and (ii) an unqualified report from the independent auditors.

Following due consideration, the Directors concluded as to the accuracy of all the examined documents, unanimously approving them and authorizing their publication through submission to the Brazilian Securities and Exchange Commission - CVM, BM&FBOVESPA S.A. – Securities Commodities and Futures Exchange, SEC – U.S. Securities and Exchange Commission, NYSE – New York Stock Exchange (the latter two both in the USA), Comisión Nacional de Valores and BCBA – Bolsa de Comercio de Buenos Aires (both in Argentina).

CONCLUSION: With the work of the meeting concluded, these minutes were drafted, read, approved and signed by all. São Paulo (SP) May 2, 2016. (signed) Pedro Moreira Salles – Chairman; Alfredo Egydio Arruda Villela Filho and Roberto Egydio Setubal – Vice Chairmen; Alfredo Egydio Setubal, Candido Botelho Bracher, Demosthenes Madureira de Pinho Neto, Fábio Colletti Barbosa, Gustavo Jorge Laboissière Loyola, Nildemar Secches, Pedro Luiz Bodin de Moraes and Ricardo Villela Marino – Directors.

MARCELO KOPEL

Investor Relations Officer