Questão jurídica principal
Whether the appellants remained liable under Art. 52 AHVG after their resignation from the board of S. AG.
Decisão extraída
They were no longer liable for contributions falling due after their resignation on 6 August 2007.
Fundamentação extraída
The court held that the written resignation ended their formal organ status. No factual organ status was established; isolated payment instructions did not suffice to show continued managerial influence.