Banco Santander Brasil officer sells 20,000 units

After the transaction, the officer reported direct ownership of 112,571 SANB11 units; no Rule 10b5-1 plan is reported.

Rhea-AI Filing Summary

Banco Santander (Brasil) S.A. officer Leonardo Mendes Cabral reported a direct sale of 20,000 SANB11 units on September 24, 2026, at $5.68 per share, equivalent to R$29.44 per share. The reported position afterward was 112,571 units. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Net Seller: 20,000 shares

Net Sell 1 txn

Insider Cabral Leonardo Mendes

Role Officer w/o Specific Desig

Sold 20,000 shs ($114K)

Type	Security	Shares	Price	Value
Sale	UNIT - SANB11 F1	20,000	$5.68	$114K

Holdings After Transaction: UNIT - SANB11 — 112,571 shares (Direct)

Footnotes (1)

1. F1. Equivalent to R$29.44 per share. Amounts presented were converted into U.S. dollars at the exchange rate of R$ 5.1789 per U.S.$1.00 as reported by Brazilian Central Bank on September 24, 2026.

Key Figures

SANB11 units sold: 20,000 units Sale price: $5.68 per share Equivalent sale price: R$29.44 per share +2 more

5 metrics

SANB11 units sold 20,000 units Sale on September 24, 2026

Sale price $5.68 per share Sale on September 24, 2026

Equivalent sale price R$29.44 per share Equivalent amount stated in the footnote

SANB11 units following transaction 112,571 units Reported position after the transaction

Exchange rate R$ 5.1789 per U.S.$1.00 Rate reported by the Brazilian Central Bank on September 24, 2026

Key Terms

Rule 10b5-1 plan, exchange rate, per share

3 terms

Rule 10b5-1 plan regulatory

"No Rule 10b5-1 plan is reported."

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

exchange rate financial

"at the exchange rate of R$ 5.1789 per U.S.$1.00"

Exchange rate is the price of one currency expressed in another—for example, how many euros you receive for one US dollar. It matters to investors because changes in that price alter the reported profits, costs and value of assets for companies and portfolios that operate or hold money across borders; think of it like switching measurement units, where the same item can look bigger or smaller depending on the unit used.

per share financial

"Equivalent to R$29.44 per share."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many SANB11 units did a BSBR officer sell?

Leonardo Mendes Cabral reported a sale of 20,000 SANB11 units on September 24, 2026, at $5.68 per share, equivalent to R$29.44 per share. The reported position afterward was 112,571 units.

What exchange rate supports the BSBR sale price?

The footnote states that amounts were converted into U.S. dollars at R$ 5.1789 per U.S.$1.00, the rate reported by the Brazilian Central Bank on September 24, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/28/2026 - 06:58 PM Accepted by SEC EDGAR 09/28/2026 - 06:57 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cabral Leonardo Mendes

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

5. 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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/24/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
UNIT - SANB11	09/24/2026	09/24/2026	S		20,000	D	$5.68(1)	112,571	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Equivalent to R$29.44 per share. Amounts presented were converted into U.S. dollars at the exchange rate of R$ 5.1789 per U.S.$1.00 as reported by Brazilian Central Bank on September 24, 2026.

	/s/ Leonardo Mendes Cabral	09/28/2026
	** 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 4 (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 4: SEC 1474 (03-26)