Kernrechtsfrage
Whether the claim for return of the shares failed because the 30 September 1999 agreements were simulated or void under Arts. 18, 19 and 20 CO.
Extrahierter Entscheid
The buyer failed to show that the cantonal findings on the parties' real intent were arbitrary; even if the agreements were void, the seller would still have a vindicatory claim to the shares.
Extrahierte Begründung
The challenge was largely appellatory and did not properly attack the binding factual findings. Voidness would not bar return because the transfer would then have been without legal basis, giving rise to a proprietary claim under Art. 641(2) CC.