Executive Management

Executive Board
Michael Reitermann
Chief Executive Officer (ad interim)
Nationality
Germany / USA
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Educational and professional background
1988
Industrial Engineering, University of Karlsruhe
1990
Master of Business Administration (M.B.A.), University of British Columbia, Vancouver BC
1990-2002
Different assignments within the Siemens Group in Germany
2002-2005
Siemens Medical Solutions, Nuclear Medicine, Chicago IL, USA, President
2005–2009
Siemens Medical Solutions, Molecular Imaging, Chicago IL / Knoxville, TN, USA, CEO
2009-2010
Siemens Medical Solutions USA, Inc. – Customer Solutions Group, Malvern PA, USA, President and CEO
2010-2015
Siemens Healthcare – Diagnostics Division, Tarrytown NY, USA, CEO
2015-2018
Siemens Healthcare GmbH, Erlangen, Germany, COO
2018-2019
Siemens Healthineers AG, Erlangen, Germany, Member of the Management Board
Since 2019
Mandates: Alpha 9 Theranostics, Inc., Vancouver; Enigma Biomedical Group, Inc., Toronto; Unilabs Holding AB, Solna
2020
Ascom Holding AG, Member of the Board of Directors
Since 09/2025
Chief Executive Officer at interim
Kalina Scott
Chief Financial Officer
Nationality
Swiss / Bulgarian
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Educational and professional background
1997
Bachelor of Business Administration (Sofia University)
1998 – 2006
UBS, Zurich and London Various functions at UBS Investment Bank (Mergers and Acquisitions) and UBS Warburg Dillon Read (Leveraged Finance)
2006 – 2008
KPMG Corporate Finance, Zurich Director Corporate Finance
2008 – 2017
Bank am Bellevue, Kuesnacht / Zurich (Switzerland) Director (from 2013: Managing Director) Corporate Finance
2017 – 2019
Polyphor AG, Allschwil (Switzerland) CFO / Member of the Executive Committee
2019 – 2023
duagon Holding AG, Dietikon (Switzerland) CFO / Director of international subsidiaries in Germany, Spain, China and USA Member of the Executive Management
2023
Advanced Management Program (Harvard Business School)
Since 2024
Ascom Group, CFO
Further Members of the Executive Committee
Guido Gloy
Managing Director Region South
Nationality
Germany
Job Kamphuis
Managing Director Region North
Nationality
Netherlands
Dr. Daniel Lack
Company Secretary / Communications & IR
Nationality
Switzerland
Adam Novak
Head of Marketing & Commercial Excellence
Nationality
Czech
Christophe Scheidegger
General Counsel & Head of Global Operations
Nationality
Swiss
Brigitte Spolenak
Chief Human Resources Officer
Nationality
Germany
Tobias Stanelle
Managing Director USA & Canada
Nationality
USA
Yves T’Joens
Head of Global Products & Solutions
Nationality
Belgium

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