Kernrechtsfrage
Whether the appellant still had a protected legal interest to seek annulment of the AGM decision after buying certificate 21a from the third party.
Extrahierter Entscheid
He had no protected interest because his own 2009 transaction contradicted the annulment claim and constituted abusive conduct.
Extrahierte Begründung
By purchasing the certificate and accepting the seller's title and associated rights, the appellant acted inconsistently with later attacking the decision that had validated that very title. The court treated this as venire contra factum proprium under Art. 2(2) CC.