Supervisory Board

Stefan Müller has been a member of the Supervisory Board of flatexDEGIRO SE and flatexDEGIRO Bank SE, or the predecessor companies of these companies, since 2017. Since then, he has served as Deputy Chairman of the Supervisory Board and led the board on an interim basis in 2025 and has also been Chairman of the Supervisory Board since 10 September 2026. He was last elected in 2025 for a term of four years.

Stefan Müller currently serves as chief representative of Börsenmedien AG and as Chief Representative or Managing Director of various affiliated companies. Prior to this, he worked for many years for predecessor companies of flatexDEGIRO SE, most recently as a member of the Management Board.

Sarna Röser has been a member of the Supervisory Boards of flatexDEGIRO SE and its banking subsidiary flatexDEGIRO Bank SE since June 2025. She has been Deputy Chair of the Supervisory Board since 10 September 2026. She was elected for a term of three years.

Sarna Röser also serves on the Supervisory Board of Fielmann Group AG and on the Advisory Board of Deutsche Bank AG. In addition, she holds various management positions in Röser Group and in companies belonging to this family group, of which she represents the fourth generation. As such, she is the designated successor to Zementrohr- und Betonwerke Karl Röser & Sohn GmbH and a shareholder and member of the Management Board of the investment company Fair VC.

Bernd Förtsch founded the predecessor company of today's flatexDEGIRO SE in 1999. He has been a member of the Supervisory Board of flatexDEGIRO SE and its predecessor companies with interruptions since 2011, during which time he also served as Chairman and Deputy Chairman of the Board. The 2025 Annual General Meeting re-elected him for a four-year term until 2029. Bernd Förtsch founded Börsenbuchverlag in 1989, which became Börsenmedien AG in 1998, which he developed into one of the leading business publishers in Germany. With four stock market magazines, over a dozen stock market newsletters, special reports, and specialist and non-fiction books, it offers the most comprehensive range of publications for private investors in the German-speaking world. Bernd Förtsch also holds various investments, including a majority stake in the listed company Heliad AG, one of Germany's leading venture capitalists.

Prof. Dr. Katrin Löhr has been a member of the Supervisory Boards of flatexDEGIRO SE and flatexDEGIRO Bank SE since October 2026. She is Professor of Business Administration, specializing in Accounting and Finance, at Dortmund University of Applied Sciences and Arts. She holds Deutsche Börse AG certifications as a Qualified Supervisory Board Member (“Qualifizierter Aufsichtsrat”) and a Supervisory Board Financial Expert (“Fachaufsichtsrat Financial Expert”).

Prior to her academic career, she held various specialist and management positions in international finance, particularly in Corporate Treasury, Risk Management and Mergers & Acquisitions. She also gained extensive experience in strategic leadership and governance as Vice Recor and member of the Executive Board of Dortmund University of Applied Sciences and Arts.

She also serves on the Supervisory Board of ÖKOWORLD AG. As founder and Executive Board Member of the German Society for Financial Literacy (DeGeFin eG), she is responsible for its strategic development and has established “Neue Finanzwelt”, a consumer-oriented ecosystem designed to strengthen financial literacy. Her academic and practical work focuses particularly on Financial Wellbeing and financial education. She also chairs the Working Committee on Financial Education at the German Institute for Standardization (DIN).