Itau Unibanco (NYSE: ITUB) director reports large direct and indirect stakes

Rhea-AI Filing Summary

Itau Unibanco Holding S.A. director Ana Lucia de Mattos Barretto Villela filed an initial ownership report showing existing stakes in the bank’s shares. She reports direct ownership of 256,811 preferred shares (ITUB4) and 2,603,229 common shares (ITUB3), plus large indirect holdings of common and preferred shares through a controlled corporate shareholder. Footnotes state she disclaims beneficial ownership of the indirectly held shares except to the extent of her pecuniary interest.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

de Mattos Barretto Villela Ana Lucia

(Last) (First) (Middle)

BRIGADEIRO FARIA LIMA AVENUE, 3500

(Street)

SAO PAULO SAO PAULO 04538-132

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Itau Unibanco Holding S.A. [ ITUB ]

3a. Foreign Trading Symbol
[ITUB4]

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Preferred shares (ITUB4)	256,811	D
Common shares (ITUB3)	2,603,229	D
Common shares (ITUB3)	5,107,553,780	I	By Corporation(1)
Preferred shares (ITUB4)	191,842	I	By Corporation(2)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The reporting person holds these shares indirectly through an indirect controlling shareholder of the issuer which the reporting person controls. The reporting person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

2. The reporting person holds these shares indirectly through an indirect controlling shareholder of the issuer which the reporting person controls. The reporting person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

	Ana Luia de Mattos Barretto Villela	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does the Form 3 for Itau Unibanco (ITUB) disclose about Ana Lucia de Mattos Barretto Villela?

The Form 3 shows Ana Lucia de Mattos Barretto Villela’s existing ownership in Itau Unibanco shares. She reports both direct and indirect holdings in common and preferred shares, establishing her baseline stake as a director under U.S. securities rules.

How many Itau Unibanco preferred shares does the director report directly on Form 3?

The filing reports that she directly holds 256,811 preferred shares (ITUB4). These are in addition to her directly held common shares, and together they outline her personal stake separate from the larger indirect corporate holdings disclosed in the same report.

How many Itau Unibanco common shares does she report as directly owned?

The Form 3 states that she directly owns 2,603,229 common shares (ITUB3). This direct common share position forms part of her overall economic exposure to Itau Unibanco alongside separately reported indirect holdings through a corporate shareholder she controls.

What indirect Itau Unibanco shareholdings are disclosed on the Form 3 filing?

The filing shows indirect ownership of 5,107,553,780 common shares (ITUB3) and 191,842 preferred shares (ITUB4), held through an indirect controlling shareholder that she controls. These positions reflect corporate-level holdings rather than shares held in her own name.

How does the Form 3 describe her beneficial ownership of indirectly held Itau Unibanco shares?

Footnotes explain she holds the indirect shares through an indirect controlling shareholder she controls and disclaims beneficial ownership except for her pecuniary interest. The filing clarifies that including these shares does not admit full beneficial ownership for Section 16 purposes.

Are there any buy or sell transactions reported in this Itau Unibanco Form 3?

No transactions are reported; the Form 3 is an initial statement of holdings. Each line is classified as a holding entry, with no share amounts listed as newly bought or sold, establishing her starting ownership position as of the reported date.