Santander Brasil (NYSE: BSBR) CEO lists 658,788 UNIT - SANB11 holdings

Rhea-AI Filing Summary

Banco Santander (Brasil) S.A. filed an initial insider ownership report for CEO Mario Roberto Opice Leao. The filing shows he directly holds 658,788 UNIT - SANB11 units following this report. This Form 3 records his existing stake and does not disclose any recent buy or sell transactions.

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^*

Leao Mario Roberto Opice

(Last) (First) (Middle)

AV PRESIDENTE JUSCELINO KUBITSCHEK, 2041

CJ 281, BLOCO A, COND. WTORRE JK

(Street)

SAO PAULO SAO PAULO 04543-011

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/20/2026

3. Issuer Name and Ticker or Trading Symbol
Banco Santander (Brasil) S.A. [ BSBR ]

3a. Foreign Trading Symbol

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
X	Officer (give title below)		Other (specify below)
	CEO

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)
UNIT - SANB11	658,788	D

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:

	/S/ Mario Roberto Opice Leao	03/20/2026
	** 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 Banco Santander (Brasil) S.A. (BSBR) Form 3 filing show?

The Form 3 shows CEO Mario Roberto Opice Leao’s existing ownership in Banco Santander (Brasil) S.A. It reports that he directly holds 658,788 UNIT - SANB11 units, establishing his baseline stake as an insider without indicating any recent purchase or sale activity.

How many UNIT - SANB11 securities does the BSBR CEO hold?

The CEO, Mario Roberto Opice Leao, is reported as directly holding 658,788 UNIT - SANB11 securities. This figure represents his total direct holdings following the reporting event and serves as the initial ownership baseline disclosed in this Form 3 insider filing for Banco Santander (Brasil) S.A.

Does the BSBR Form 3 indicate recent insider buying or selling?

No, the Form 3 does not indicate recent insider buying or selling. The transaction entry is classified as a holding with an unknown code, and the summary shows zero buy or sell transactions, focusing solely on the CEO’s existing 658,788 UNIT - SANB11 direct holdings.

Who is the reporting person in the Banco Santander (Brasil) S.A. Form 3?

The reporting person is Mario Roberto Opice Leao, identified as both a director and officer with the title CEO of Banco Santander (Brasil) S.A. The filing records his direct ownership of 658,788 UNIT - SANB11 units as his initial reported insider position.

What type of security is disclosed in the BSBR CEO’s Form 3?

The Form 3 discloses holdings in a security titled UNIT - SANB11. The CEO, Mario Roberto Opice Leao, directly holds 658,788 of these units after the reporting event, and no derivative securities or additional option positions are listed in the derivativeSummary section.