The transfer of company shares must be recorded in writing. It is made enforceable against the company, in the forms provided for in Article 1690 of the Civil Code. However, service may be replaced by the deposit of an original of the deed of transfer at the registered office against delivery by the manager of a certificate of such deposit.
It may not be relied on as against third parties until these formalities have been completed and, in addition, until the amended Articles of Association have been published in the Trade and Companies Register; this filing may be made electronically.