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Supervisory Board
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Gert-Maria Freimuth | Chairman of the Board

Gert-Maria Freimuth is the Chairman of the Board of Aumann AG and also chairs the Nomination Committee. He is the founding shareholder of MBB SE, the majority shareholder of Aumann AG. He studied Economics and Christian Social Ethics at the University of Münster.


Christoph Weigler | Vice Chairman of the Board

Christoph Weigler is the Vice Chairman of the Board of Aumann AG and also chairs the Audit Committee. He is the General Manager at UBER Germany, Austria and Switzerland. Upon completing his studies in Germany, China and the USA, Mr. Weigler worked for various consulting firms on projects in the automotive industry for eight years.


Dr. Christof Nesemeier | Member of the Board

Dr Christof Nesemeier is Member of the Board of Aumann AG. He is the co-founder and CEO of MBB SE and as the Managing Director of MBB Fertigungstechnik from 2012 to 2014 had operational responsibility for a significant part of today's Aumann Group. Dr. Nesemeier studied Economics at the University of Münster, and completed his doctorate at the University of St. Gallen in Switzerland. He worked in an international management consultancy enterprise until 1996.


Executive Board
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Sebastian Roll | Chief Executive Officer

Dipl.-Betriebswirt (BA) Sebastian Roll, born in 1978, worked at CLAAS for several years after completing his studies in Business Administration. After joining the Aumann Group in 2009, he has held various management positions. He was appointed Chief Financial Officer of Aumann AG in February 2017 and Chief Executive Officer in July 2021. Mr. Roll is responsible for Strategy, Mergers & Acquisitions, Operations, Human Resources, and Legal, amongst others.


Jan-Henrik Pollitt | Chief Financial Officer

Jan-Henrik Pollitt, B.A., born in 1986, studied Business Administration and joined the Aumann Group in 2010. Mr. Pollitt has held various management positions in the company and most recently headed Corporate Development at Aumann AG. He was appointed Chief Financial Officer of Aumann AG in July 2021 and, in addition to Finance, is responsible for Digitalisation, Investor Relations and Purchasing.