Petrobras (PBR) director Guilherme Santos Mello files initial Form 3

Rhea-AI Filing Summary

PETROBRAS - PETROLEO BRASILEIRO SA director Guilherme Santos Mello filed an initial Form 3, which is a required statement of beneficial ownership for insiders. The filing reports no transactions in the company’s securities and shows no derivative positions disclosed in this snapshot.

Key Figures

Insider buy transactions: 0 transactions Insider sell transactions: 0 transactions Derivative transactions: 0 transactions

3 metrics

Insider buy transactions 0 transactions BuyCount in Form 3 transaction summary

Insider sell transactions 0 transactions SellCount in Form 3 transaction summary

Derivative transactions 0 transactions DerivativeTransactionCount in Form 3 summary

Key Terms

Form 3, reporting person, derivative positions

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3): {"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reporting person regulatory

""reportingPersons": [{ "name": "Mello Guilherme Santos""

derivative positions financial

""derivativeSummary": [],"

Derivative positions are contracts that derive their value from an underlying asset—such as a stock, bond, currency or commodity—and include instruments like options, futures and swaps. Think of them as bets or insurance tied to an asset’s future price: they let investors amplify returns, hedge risk or take exposure without owning the asset directly, which can meaningfully increase potential gains, losses and volatility in a portfolio.

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

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Accepted by SEC EDGAR 04/29/2026 - 07:41 PM Learn about SEC filing dates

FAQ

What does the PBR Form 3 filing by Guilherme Santos Mello show?

The Form 3 for PBR shows that director Guilherme Santos Mello has filed his initial statement of beneficial ownership. The disclosure reports no insider transactions and no listed derivative positions at the time of this filing.

Did Guilherme Santos Mello buy or sell Petrobras (PBR) shares in this Form 3?

No insider trades are reported in this Form 3 for PBR. The transaction summary shows zero buys, zero sells, and no derivative exercises, indicating this filing only establishes an initial ownership record.

Are any derivative securities reported in the Petrobras (PBR) Form 3?

The Form 3 filing for PBR lists no derivative securities for director Guilherme Santos Mello. The derivative summary and exercise-related fields are all zero, so no options or similar instruments are disclosed in this document.

What is the purpose of a Form 3 for Petrobras (PBR) insiders?

A Form 3 is the initial statement of beneficial ownership filed when someone becomes an insider at PBR. It establishes a baseline of their holdings and precedes future Forms 4 or 5 that report subsequent insider transactions.

Does the PBR Form 3 include any gifts or tax-withholding transactions?

The Form 3 for PBR reports no gifts or tax-withholding events. Gift counts, tax-withholding counts, and related share figures are all zero, showing no such activity at the time of this initial ownership filing.

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Mello Guilherme Santos

(Last) (First) (Middle)

28, HENRIQUE VALADARES AVE

19TH FLOOR, A TOWER

(Street)

RIO DE JANEIRO RJ 20231-030

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
04/17/2026

3. Issuer Name and Ticker or Trading Symbol
PETROBRAS - PETROLEO BRASILEIRO SA [ PBR ]

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
	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)

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:

No securities are beneficially owned.

	Guilherme Santos Mello	04/29/2026
	** 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)