Rolf Ringger

citizen of Niederglatt, Regensdorf

Commercial register

ri-invest GmbH

Managing director · sole signature · Zürich

since Dec 17, 2013
Marc Wittmer Stiftung

Member of the foundation board · Secretary of the board of directors · sole signature · Zürich

Member of the foundation board · Secretary of the board of directors · sole signature

until May 4, 2022
Pentec AG in Liquidation

Liquidator · sole signature · Zug

Member of the board of directors · sole signature

until Jan 7, 2022