6-K

UNITED STATES

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 March, 2021

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 office)

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  ☒            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  ☒

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  ☒

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  ☒

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

82–                         

EXHIBIT INDEX

99.1 ITAÚ UNIBANCO - ANNOUNCEMENT TO THE MARKET - TRADING OF OWN SHARES BY TREASURY - FEBRUARY 2021

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.

Date: March 12, 2021.

Itaú Unibanco Holding S.A
By:	/s/ Renato Lulia Jacob
	Name:	Renato Lulia Jacob
	Title:	Group Head of Investor Relations and Market Intelligence
By:	/s/ Alexsandro Broedel
	Name:	Alexandro Broedel
	Title:	Chief Financial Officer

1

EX-99.1

Exhibit 99.1

ITAÚ UNIBANCO HOLDING S.A. CNPJ. 60.872.504/0001-23 A Publicly Listed Company NIRE 35300010230 Announcement to the Market Trading of Own Shares by Treasury February 2021 We would like to inform the capital market agents that in February 2021: 1. Itaú Unibanco did not purchase its own shares for treasury stock; 2. Itaú Unibanco sold 222,139 preferred shares, mainly under its Long-term Incentive programs. Historical information regarding purchase of own shares for treasury stock is available on the company’s Investor Relations website (www.itau.com.br/investor-relations). São Paulo-SP, March 11, 2021. RENATO LULIA JACOB Head of Investor Relations and Market Intelligence