Sian Crouzet

About Sian Crouzet

Siân Crouzet is currently Chief of Staff at MaaT Pharma, a French listed biotechnology company focused on microbiome ecosystem therapies designed to improve outcomes for cancer patients. She previously served as Chief Financial Officer for eight years and, in 2024, transitioned to a broader leadership support role as the company appointed a new CFO. That progression suggests a trusted executive profile, combining financial discipline, governance experience, and cross-functional coordination in a clinical-stage biotech environment. During her tenure as CFO, Crouzet was closely associated with MaaT Pharma’s financial communication and capital planning through a period of major operational milestones. Company disclosures show her speaking on the firm’s cash position, financing visibility, recruitment progress, and the advancement of the Phase 3 clinical program for MaaT013. She also represented the company in updates linked to half-year and quarterly results, underscoring her role in investor-facing communication and financial stewardship. Her career at MaaT Pharma highlights deep expertise in corporate finance, listed-company governance, and biotech financing strategy. In a sector where access to capital, cash runway, and clinical execution are tightly linked, she appears to have played an important role in supporting the company’s growth from an emerging biotech into a more mature clinical organization. Her move to Chief of Staff also indicates a broader mandate: helping align executive priorities, facilitating strategic execution, and ensuring operational continuity across the business. In practical terms, her contribution spans not only financial leadership but also the organizational discipline required to advance complex R&D programs and industrial scale-up in a regulated life-sciences setting.