AB Science: Stéphane Ledermann Replaces Alain Moussy as CEO and Chairman
AB Science restructured its governance on July 7, 2026, by appointing Stéphane Ledermann as the CEO and Chairman, a shareholder for over fourteen years. Alain Moussy, co-founder and outgoing CEO, remains on the board. This change marks a new phase in the company's development.
Ledermann Takes the Helm, Moussy Stays on the Board
The Board of Directors of AB Science has appointed Stéphane Ledermann as CEO and Chairman. Ledermann, an investor in the company for fourteen years, has actively contributed to the group's financing and brings over thirty years of experience in the development and financing of innovative companies. He has held executive positions in industrial groups, tech startups, and business aviation companies.
Alain Moussy, co-founder of AB Science, steps down as CEO but remains a member of the Board of Directors. The Board praised his entrepreneurial vision and his role in building and developing the group over the years.
Strategic Review Underway Before Fall
The Board has tasked Ledermann with conducting a comprehensive strategic review focusing on the company's activities, assets, and prospects. The findings of this review will be presented to the Board and will result in a strategic roadmap to be communicated to the market in the fall of 2026. Ledermann stated that he relies on his confidence gained as an investor and his experience in multidisciplinary management to identify the best asset valorization opportunities.
Ledermann Co-opted to the Board, Relinquishes Other Roles
Stéphane Ledermann has been co-opted to the Board of Directors in place of Renaud Sassi, who wished to step down from his mandate. Ledermann relinquishes all his other operational roles, including that of CEO at Boostheat, which he has held since January 2025, to fully dedicate himself to AB Science.
