Gen Re, Berkshire Hathaway’s global reinsurance subsidiary, has appointed Nancy Roos to the executive board of General Reinsurance AG, effective April 1, 2026, following the retirement of Mike O’Dea.
General Reinsurance AG is the German legal entity of the reinsurance company and the main risk taker in its international business.
Roos has served as the entity’s chief financial officer since 2019 and will continue in that role.
She joined Gen Re in 2001 as a member of the General Accounting team and has over twenty years of experience at Gen Re. During her career, she held a number of senior financial and leadership roles, making significant contributions to the company’s financial governance and strategic development.
Charlie Shamieh, Chairman of Gen Re and Chairman of the Executive Committee of General Reinsurance AG, commented: “Since taking on the role of Chief Financial Officer of General Reinsurance AG, Nancy has led the international finance function through an increasingly complex reporting and regulatory environment. I am confident that her deep institutional knowledge, strategic insights and proven leadership skills will be an ideal addition to the Executive Committee.”
He continued: “On the occasion of his retirement, I would also like to express my deep gratitude to Mike O’Dea for his outstanding contributions throughout his career as our Global Gen Re Group Chief Financial Officer and a long-standing member of the Executive Committee of General Reinsurance AG.
“He has demonstrated exceptional leadership in leading large-scale global initiatives and guiding the company in implementing significant changes in accounting standards and systems that have strengthened General Re’s operating foundation. The company is deeply grateful for his dedication and service and wishes him well in his retirement.”
