White Mountains Insurance Group Ltd - Company Profile
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The following section provides information on White Mountains Insurance Group Ltd’s senior management, executives, CEO and key decision makers and their roles in the organization. For more insight into White Mountains Insurance Group Ltd's management and employees, unlock the full data with our company analytics monitoring tool.
Executives
Weston M. Hicks
Chairman Executive BoardMr. Weston M. Hicks has been the Chairman of the company since May 2023. Prior to this, he served as a President and Chief Executive Officer and Executive Vice President at Alleghany Corporation. Previously, he served leadership roles at Chubb Corporation, Sanford C. Bernstein, J.P. Morgan Securities and Moody and KPMG.
David A. Tanner
Vice Chairman Executive BoardMr. David A. Tanner serves as the Vice Chairman of the company since February 2020 and its Director since 2018. He also serves as a Managing Director of Three Mile Capital LLC since 2017. He served as a Managing Director of Arlon Group LLC and Executive Vice President of Continental Grain Company from 2006 to 2017; Founder and Managing Principal of Quadrangle Group LLC from 2000 to 2006; and as Managing Principal of Lazard Capital Partners and Managing Director of Lazard Freres & Co. from 1998 to 2000. Previously, he served as the Managing Director of Warburg Pincus LLC.
Liam P. Caffrey
Chief Executive Officer; Director Executive BoardMr. Liam P. Caffrey has been the Chief Executive Officer and Director of the company since January 2026. Previously, he served as Chief Financial Officer and President of the company. Prior to this, he served as the Chief Executive Officer of Aon Affinity. He also served as the Chief Financial Officer of Aon Risk Solutions America and the Chief Financial Officer of Aon Risk Solutions Globally. Previously, he served as a Principal at McKinsey & Company and as an Engineer at General Motors.
Michaela J. Hildreth
Chief Accounting Officer; Managing Director Senior ManagementMs. Michaela J. Hildreth serves as the Chief Accounting Officer and Managing Director of the company since May 2021. Prior to this, she served as the Managing Director and General Auditor of WM Capital. Previously, she served in various accounting and auditing-related positions at the company since joining in 2003. Earlier, she served at PricewaterhouseCoopers for about 13 years.
Jen Moyer
Chief Administrative Officer Senior ManagementMs. Jen Moyer serves as the Chief Administrative Officer of the company. She joined the company in 2017. Previously, she served as the Chief of Staff for Asia Pacific excluding Japan at Goldman Sachs.
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