If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes the aggregate amount of 781,451,745.00 preferred shares without par value (the "Preferred Shares") of Petrobras directly beneficially owned by the Reporting Person and over which the Reporting Person shares voting and dispositive power with BNDES, its sole shareholder (where such voting power arises based on the limited appointment rights of holders of Preferred Shares). The Preferred Shares are a separate class of equity securities registered under Section 12(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Although the Preferred Shares do not confer a right to vote on matters generally voted on by holders of common shares of the Issuer (other than certain corporate actions adversely affecting the Preferred Shares), holders of Preferred Shares holding at least 10.0% of Petrobras's total capital stock have the right to appoint and/or dismiss one member to or from Petrobras's board of directors, and holders of Preferred Shares have the right to separately appoint one member to Petrobras's fiscal council (and such member's respective alternate). However, BNDES and BNDESPAR are prevented from voting their Preferred Shares pursuant to a decision issued by the Brazilian Securities Commission (Comissao de Valores Mobiliarios) on December 2, 2014. The Preferred Shares are not convertible into common shares of the Issuer. (2) Percentage of the class beneficially owned is calculated based on 5,446,501,379 Preferred Shares of the Issuer outstanding as of March 31, 2026, as reported in Petrobras' report of foreign private issuer on Form 6-K furnished to the U.S. Securities and Exchange Commission on May 12, 2026, containing Petrobras's financial statements in U.S. dollars as of March 31, 2026, and for the three-month periods ended March 31, 2026 and 2025, prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (the "Petrobras 6-K").


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes the aggregate amount of 781,451,745 Preferred Shares directly beneficially owned by BNDESPAR and over which the Reporting Person shares voting and dispositive power with BNDESPAR, its direct, wholly-owned subsidiary (where such voting power arises based on the limited appointment rights of holders of Preferred Shares). The Preferred Shares are a separate class of equity securities registered under Section 12(b) of the Exchange Act. Although the Preferred Shares do not confer a right to vote on matters generally voted on by holders of common shares of the Issuer (other than certain corporate actions adversely affecting the Preferred Shares), holders of Preferred Shares holding at least 10.0% of Petrobras's total capital stock have the right to appoint and/or dismiss one member to or from Petrobras's board of directors, and holders of Preferred Shares have the right to separately appoint one member to Petrobras's fiscal council (and such member's respective alternate). However, BNDES and BNDESPAR are prevented from voting their Preferred Shares pursuant to a decision issued by the Brazilian Securities Commission (Comissao de Valores Mobiliarios) on December 2, 2014. The Preferred Shares are not convertible into common shares of the Issuer. (2) The Reporting Person may be deemed an indirect beneficial owner of the Preferred Shares directly beneficially owned by BNDESPAR, as the sole shareholder of BNDESPAR, along with the Preferred Shares directly owned by the Reporting Person. (3) Percentage of the class beneficially owned is calculated based on 5,446,501,379 Preferred Shares of the Issuer outstanding as of March 31, 2026, as reported in Petrobras' 6-K.


SCHEDULE 13D


 
BNDES Participacoes S.A.
 
Signature:/s/ Marcelo Marcolino
Name/Title:Marcelo Marcolino / Attorney-in-fact
Date:06/03/2026
 
Signature:/s/ Marcio Bernardo Spata
Name/Title:Marcio Bernardo Spata / Attorney-in-fact
Date:06/03/2026
 
Banco Nacional de Desenvolvimento Economico e Social - BNDES
 
Signature:/s/ Marcelo Marcolino
Name/Title:Marcelo Marcolino / Attorney-in-fact
Date:06/03/2026
 
Signature:/s/ Marcio Bernardo Spata
Name/Title:Marcio Bernardo Spata / Attorney-in-fact
Date:06/03/2026