No observed cheques. Organisations of this type rarely announce deals, so this says nothing about their activity.
From their own site: “Family office présent à Paris et Genève , nous accompagnons les familles fortunées et les entrepreneurs, en France comme à l'international, pour bâtir, préserver et transmettre leur patrimoine en toute sérénité.”
An announcement gives the size of the round, not the size of this investor's cheque. The only rounds that imply a cheque are those where they were the sole named investor.
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