Believe the handwritten note. The rights here appear to belong to minority shareholders who sold their business at a price including earn-out provisions, i.e. partly contingent on subsequent performance.

Although these are rights to equity, they usually are not transferable, unlike warrants (subscription, purchase or covered) or pre-emptive subscription rights. That's why they appear here as just 'Droits' rather than as BSA, warrants or DPS.

In truth, though, there is nothing wrong with just plain "Rights" as the heading here.