White Mountains Insurance(US:WTM) Prnewswireยท2025-09-02 12:03Core Viewpoint - White Mountains Insurance Group has announced the appointment of Liam Caffrey as the new CEO, effective January 1, 2026, succeeding Manning Rountree, who will retire on December 31, 2025 [1][2]. Leadership Transition - Liam Caffrey, currently the President and CFO, will take over as CEO, while Manning Rountree will transition to a Senior Advisor role until January 1, 2028 [2][3]. - Caffrey joined White Mountains as CFO in 2022 and has prior experience at Aon PLC and McKinsey & Company [2]. - Rountree expressed confidence in Caffrey's leadership capabilities and noted that the succession was planned collaboratively over the past four years [4]. Board and Management Changes - Weston Hicks, Chairman of White Mountains, praised Caffrey's extensive insurance experience and acknowledged Rountree's 21 years of service as CEO [4]. - Michael Papamichael will succeed Caffrey as CFO on January 1, 2026, and has a background with Hamilton Insurance Group and Sirius Group [4]. - Giles Harrison will become President of White Mountains on January 1, 2026, having joined the company in June 2024 from Zurich Insurance Group [5].