Company: PBR
Filing Date: 2025-08-22
Form Type: 6-K
Source: 0001292814-25-003136
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-08-22
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private
Issuer
Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange
Act of 1934

For the month of August, 2025

Commission File Number 1-15106

PETRÓLEO BRASILEIRO S.A. – PETROBRAS

(Exact name of registrant
as specified in its charter)

Brazilian Petroleum Corporation – PETROBRAS

(Translation of Registrant's
name into English)

Avenida Henrique Valadares, 28 – 9th floor
20231-030 – Rio de Janeiro, RJ
Federative Republic of Brazil

(Address of principal
executive office)

Indicate by check mark
whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___ Form
40-F _______

Indicate by check mark
whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission
pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _______ No___X____</div>

Petrobras informs about new Chairman of the Board of Directors

—

Rio de Janeiro, August 21, 2025 –Petróleo Brasileiro S.A. – Petrobras, following up on the disclosure made on August 20, 2025, informs that the Board
of Directors, at a meeting held today, appointed the board member Mr. Bruno Moretti as the new Chairman of the Board, pursuant to §2
of Article 18 of the company's Bylaws, with a term until the next General Shareholder Meeting.

Mr. Bruno Moretti holds a BA in Economics
from Universidade Federal Fluminense (UFF), an MA in Economics of Industry from Universidade Federal do Rio de Janeiro (UFRJ), a PhD in
Sociology from Universidade de Brasília (UnB) and a post-doctoral internship in Sociology from UnB. Currently, he is a doctoral
candidate in Economic Development at Unicamp. He began his career as a Planning and Budget Analyst at the Ministry of Planning in 2004.
Between 2009 and 2012