Wenger Plattner

Brigitte Umbach-Spahn

Brigitte Umbach-Spahn is a partner on the Insolvency and Restructuring team. She advises creditors and debtors in national and cross-border restructuring and insolvency cases and represents clients in court in insolvency matters. She also acts as administrator/liquidator in complex insolvency proceedings and serves as a member of creditor committees. Brigitte Umbach-Spahn has been appointed by FINMA as an investigating agent for banks and financial institutions. Brigitte Umbach-Spahn is past co-chair of the IBA Insolvency Section and since 2019 member of the advisory board of the IBA Insolvency Section. She regularly speaks at national and international conferences and publishes on topics relating to insolvency law.

Stefan Bossart

Stefan Bossart is a Counsel on the Insolvency and Restructuring team. He advises on national and cross-border restructuring and insolvency law (including the securing of claims) and represents clients in court in connection with insolvency matters. Stefan Bossart also possesses many years of experience in handling complex liquidations, where he regularly looks after a variety of matters, many of them cross-border. He also has a long track record of dealing with a broad range of regulatory and internal investigations, in particular in the area of banking and financial markets law.

Denise Jagmetti-Huser

Senior Associate

Karl Wüthrich

Karl Wüthrich is a counsel on the Insolvency and Restructuring team. For more than 30 years, he has advised creditors on national and international enforcement law and assisted debtors in formulating and implementing reorganisation and restructuring plans. He acts as administrator, liquidator, trustee in bankruptcy and member of creditor committees in complex insolvency proceedings. He has been appointed by FINMA as an investigating agent and liquidator for banks and financial institutions. Karl Wüthrich regularly speaks at national and international conferences and at universities in Switzerland. He publishes in the area of insolvency law.