Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Melgarejo Fernando Sabbi 2. Issuer Name and Ticker or Trading Symbol PETROBRAS - PETROLEO BRASILEIRO SA [PBR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) RUA HENRIQUE VALADARES 28, 19 TH FLOOR, A TOWER 3. Date of Earliest Transaction (Month/Day/Year) 04/30/2026 (Street) RIO DE JANEIRO 20231-030 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Phantom Shares(1)

$6.62(2)

(3)

(3)

PETR3

15,797.48

22,724.18

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Melgarejo Fernando Sabbi RUA HENRIQUE VALADARES 28 19 TH FLOOR, A TOWER RIO DE JANEIRO 20231-030			Chief Financial Officer

Signatures

/s/ Fernando Sabbi Melgarejo		04/30/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Phantom shares are granted pursuant to the Petrobras Performance Award Program. The phantom shares are referenced to the PETR3 common share price and are settled in cash upon vesting. The deferred portion of the award vests in four equal annual instalments. Additional phantom shares are credited proportionally upon the payment of dividends or interest on equity by the company.
(2)	Weighted average of the last 60 trading sessions of Petrobras common shares in 2025, resulting in 33.02 BRL. The average is calculated as the sum of Turnover divided by the sum of Volume over these last 60 trading sessions. The price reported in column 2 is a convenience conversion of the 33.02 BRL per share into U.S. dollars based on the Central Bank of Brazil exchange rate of 4.988 BRL per 1.00 USD on April 30, 2026.
(3)	Additional phantom shares credited as a result of Petrobras Performance Award Program of 2025 fiscal year.

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