Ms Kahle-Galonske was elected as a member of the Supervisory Board in May 2017 and reappointed for a period of four years on May 17, 2021. 

Stefanie has more than 25 years of experience in various senior executive finance roles in the technology industry. In these roles, she managed transformations, reorganizations and M&A, as well as start-ups and scale-ups. Since April 2016, Stefanie is Group CFO of Egon Zehnder International AG in Zurich, Switzerland. From March 2013 until March 2016, she was CFO of Markem Imaje at Dover Corporation based in Geneva, Switzerland. Between January 2007 and February 2012, she held various senior executive positions at NXP Semiconductors in France and the Netherlands. She started her career at Philips Electronics.

Stefanie currently serves as a non-executive member of the Supervisory Board at Smart Photonics B.V., the photonics semiconductor foundry based in Eindhoven, the Netherlands. In the past, Stefanie served as non executive board member of Micronas Semiconductors AG in Switzerland, and Nu-Tune Singapore. 

Stefanie graduated in economics from the Ruhr University of Bochum, Germany, and has been a Certified Public Accountant (CPA) since 2002. Stefanie is a German and Swiss national.