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 November 2009

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 Itaúsa

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:  ý      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:   ý

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:   ý

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:   ý

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:  November 30, 2009	By:	/s/ Alfredo Egydio Setubal
		Name:	Alfredo Egydio Setubal
		Title:	Investor Relations Officer

By:	/s/ Silvio Aparecido de Carvalho
	Name:	Silvio Aparecido de Carvalho
	Title:	Chief Financial Officer

 

EXHIBIT INDEX

99.1 Announcement to the Market:  Acquisition of shares of own issue.

EX-99.1

ITAÚSA – INVESTIMENTOS ITAÚ S.A. CNPJ.61.532.644/0001-15 A Publicly Held Company ITAÚ UNIBANCO HOLDING S.A. CNPJ. 60.872.504/0001-23 A Publicly Held Company

Announcement to the Market

1. Itaúsa – Investimentos Itaú S.A. (“ITAÚSA”) and Itaú Unibanco Holding S.A. (“ITAÚ UNIBANCO”) announce that in order to terminate the reciprocal participation established by virtue of the association between the Itaú and Unibanco conglomerates, they have today signed purchase agreements for shares of their own issue with their controlled companies, Itaú Seguros S.A. (“ITAÚSEG”) and Itaú Vida e Previdência S.A. (“IVP”).

2. Through the intermediary of these contracts: (i) ITAÚSA has acquired 1,209,216 (one million, two hundred and nine thousand, two hundred and sixteen) preferred nominative shares of its own issue held by ITAÚSEG and 172,822 (one hundred and seventy-two thousand, eight hundred and twenty-two) preferred nominative shares of its own issue held by IVP, in the amount of R$15.2 million (this quantity represents 0.0485% of the company’s total free float);  and (ii) ITAÚ UNIBANCO has acquired 162,360 (one hundred and sixty-two thousand, three hundred and sixty) preferred nominative shares of its own issue held by ITAÚSEG and 23,100 (twenty-three thousand, one hundred) preferred nominative shares of its own issue held by IVP in the amount of R$7.0 million (this quantity already adjusted for a 10% stock dividend, implemented on August 28, 2009, representing 0.0074% of the company’s total free float).

3. All the above described shares were acquired at a pricing established on the basis of the quotation at the close of business on the BM&FBovespa as at November 26, 2009, being ITAÚSA Preferred (ITSA4) quoted at R$11.03 per  share and ITAÚ UNIBANCO Preferred (ITUB4) quoted at R$37.52 per share, and the private execution of their purchase and sale was duly authorized by the Brazilian Securities and Exchange Commission (CVM) on November 3, 2009  through official letter OFÍCIO/CVM/SEP/GEA-3/Nº955/09.

São Paulo-SP, November 27, 2009.

HENRI PENCHAS	ALFREDO EGYDIO SETUBAL
Investor Relations Officer	Investor Relations Officer
Itaúsa – Investimentos Itaú S.A.	Itaú Unibanco Holding S.A.