Chapter III · Articles of association · Section I · Execution and registration

Article 17 Shareholders’ agreements

Artigo 17.º · Acordos parassociais

Código das Sociedades Comerciais · Decree-Law No. 262/86 · consolidated text checked 26 October 2026

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1. Shareholders’ agreements entered into between all or some members by which they undertake, in that capacity, to act in a manner not prohibited by law have effect between the parties to them, but may not be relied upon to challenge acts of the company or acts of members in relation to the company.

1 - Os acordos parassociais celebrados entre todos ou entre alguns sócios pelos quais estes, nessa qualidade, se obriguem a uma conduta não proibida por lei têm efeitos entre os intervenientes, mas com base neles não podem ser impugnados actos da sociedade ou dos sócios para com a sociedade.

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2. The agreements referred to in the preceding paragraph may concern the exercise of voting rights, but not the conduct of the parties or other persons in the performance of management or supervisory functions.

2 - Os acordos referidos no número anterior podem respeitar ao exercício do direito de voto, mas não à conduta de intervenientes ou de outras pessoas no exercício de funções de administração ou de fiscalização.

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3. Agreements by which a member undertakes to vote in any of the following ways are void:

3 - São nulos os acordos pelos quais um sócio se obriga a votar:

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a) Always following the instructions of the company or one of its bodies;

a) Seguindo sempre as instruções da sociedade ou de um dos seus órgãos;

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b) Always approving proposals made by them;

b) Aprovando sempre as propostas feitas por estes;

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c) Exercising or abstaining from exercising voting rights in return for special benefits.

c) Exercendo o direito de voto ou abstendo-se de o exercer em contrapartida de vantagens especiais.

What we checked in this article

Inter-party effect is distinguished from challenges to corporate acts; management/supervisory conduct is excluded.

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Unofficial English translation prepared by BCA Portugal for reference. Only the Portuguese text published in the Diário da República has legal force. Editorial notes are ours and are not part of the statute.

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