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AT&S Appoints Gerrit Steen as New CFO and Streamlines its Executive Board
December 26, 2025 | AT&SEstimated reading time: 1 minute
The Supervisory Board of AT&S has appointed Gerrit Steen (55) as Chief Financial Officer (CFO) and member of the Executive Board for a three-year term, effective February 1, 2026. With Gerrit Steen joining AT&S, the company will streamline its management structure into a three-member Executive Board consisting of CEO Michael Mertin (Chairman), CFO Gerrit Steen, and CTO Peter Griehsnig. Ingolf Schröder will step down from the Executive Board, but will remain with the company by mutual agreement and will continue to lead the Business Unit Microelectronics as EVP.
With Gerrit Steen, AT&S gains an internationally seasoned finance leader who has held leadership positions across Europe, Asia, the Middle East and the United States for more than 25 years. He brings extensive expertise in financial strategy, transformation and global growth and has successfully driven finance, risk and growth initiatives in both privately held and publicly listed companies. Prior to joining the AT&S Executive Board, Steen served as Group CFO of DAMAC Group, an investment, real estate and technology company in Dubai with revenues exceeding USD 5 billion. Previously, he held various board and senior executive roles within the Fresenius Group and the technology company Heraeus, including Global CFO and CEO for the Asia region of Fresenius Kabi AG.
“I am very pleased to have the opportunity to join such a renowned high-tech company as AT&S as CFO. Supported by its strong technology capabilities, AT&S is very well positioned to benefit from global trends such as digitalization, connectivity and electrification. Together with the Supervisory Board, the Management Board and the entire AT&S organization, I look forward to helping turn these opportunities into profitable growth through disciplined financial management and clear capital allocation,” says Gerrit Steen.
“We are pleased to welcome Gerrit Steen, a highly accomplished financial expert with decades of global experience, to AT&S. His extensive expertise in financial strategy, transformation, and global growth, combined with his experience in Asia and the United States, will be of great value for the future development of our company,” emphasizes Andy Mattes, Chairman of the Supervisory Board of AT&S AG.
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