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 October 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: October 20, 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 INVITATION FOR CONFERENCE CALL 2016 - 3RD QUARTER RESULT

EX-99.1

Exhibit 99.1 

  

Special InvitationFollow our conference call 2016 -....d Quarter ResultNovember 1, 2016 Access code: Itaú Unibanco Itaú Unibanco Holding S.A. (BM&FBovespa: ITUB4 and ITUB3; NYSE: ITUB and BCBA: ITUB4) is pleased to invite you to participate in our conference calls about the 2016 - 3rd quarter result.To join the event on the internet, please visit: www.itau.com.br/investor-relations. The audio webcast works with Internet Explorer 9 or above and the new versions of Chrome, Firefox and mobile devices.08:00 AM (EDT) 10:00 AM (Brasília time 09:30 AM (EDT 11:30 AM (Brasília time) Time Presentation Eduardo Mazzilli de VassimonExecutive Vice President, CFO (Chief Financial Ocer) and CRO (Chief Risk Ocer) Marcelo KopelInvestor Relations Ocer The conference calls will also be archived in audio format on the same website. To access an audio replay of the conference calls, which will be available until November 7, 2016, dial (55 11) 3193-1012 or (55 11) 2820-4012. Access codes: 1843526# (call in Portuguese) and5591183# (call in English). On the morning of the conference call, the slide presentation will be available for viewing and downloading. If you have any questions, please contact Mrs. Doris Pompeu at GlobalRI, at (55 11) 5042-6700 or doris.pompeu@globalri.com.br.facebook.com/itauunibancori @itauunibanco_ri www.itau.com.br/investor-relations