Kernrechtsfrage
Whether the appellant was liable under Art. 52 AHVG for unpaid employer social security contributions.
Extrahierter Entscheid
The conditions for subsidiary employer-organ liability were met; the appellant was liable for the loss caused by the unpaid contributions.
Extrahierte Begründung
The employer paid only part of the third-quarter 2004 installments and none of the fourth-quarter 2004 installments, amounting to gross negligence. The cantonal court correctly attributed the qualified wrongful conduct and resulting loss to the appellant as sole shareholder and manager.