Santander Brasil (NYSE: BSBR) officer reports holding 21,267 units

Rhea-AI Filing Summary

Banco Santander (Brasil) S.A. filed an initial ownership report for officer Pareto Daniel Mendonca. The Form 3 shows he directly holds 21,267 units of the company’s UNIT - SANB11 security. This filing lists existing beneficial ownership and does not report any recent purchases or sales.

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^*

Pareto Daniel Mendonca

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Officer w/o Specific Desig

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	21,267	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/ Daniel Mendonca Pareto	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 officer Pareto Daniel Mendonca’s existing stake. He is reported as directly holding 21,267 units of UNIT - SANB11, giving investors a baseline view of his beneficial ownership position in the company.

How many Banco Santander (Brasil) S.A. (BSBR) units does the reporting officer hold?

The officer is reported as directly holding 21,267 units of UNIT - SANB11. This figure reflects his beneficial ownership position following the reporting event, without indicating any specific recent buy or sell transaction.

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

No, the Form 3 functions as an initial ownership statement. It lists that the officer directly holds 21,267 units of UNIT - SANB11, but it does not classify the entry as a purchase or sale transaction.

Is the Banco Santander (Brasil) S.A. (BSBR) ownership in the Form 3 direct or indirect?

The filing classifies the 21,267 units of UNIT - SANB11 as direct ownership. The ownership code is “D”, and there are no additional footnotes indicating indirect holdings through entities or related parties.

What type of security is reported in the BSBR Form 3 for the officer?

The security reported is identified as UNIT - SANB11. The officer’s direct beneficial ownership of 21,267 of these units is disclosed, providing clarity on the specific class of securities he holds in Banco Santander (Brasil) S.A.