On March 1, 2022, Liam P. Caffrey will become Executive Vice President of White Mountains Insurance Group, Ltd. Mr. Caffrey is a seasoned leader with over 20 years of experience. Mr. Caffrey served as Chief Executive Officer of Aon Affinity from 2018 to 2020. He served as global Chief Financial Officer of Aon Risk Solutions from 2015 until 2018 and as Chief Financial Officer of Aon Risk Solutions Americas from 2012 until 2015. Prior to joining Aon, Mr. Caffrey was a partner with McKinsey & Company. Mr. Caffrey currently serves as a consultant to a subsidiary of the Company. Reid T. Campbell, the current Executive Vice President and Chief Financial Officer of the Company, will become President of the Company on March 1, 2022 and will serve in that role until his retirement in February 2024. In his role as President, Mr. Campbell will maintain all his current executive duties other than his responsibilities as Chief Financial Officer. In addition, Mr. Campbell will continue to serve as a director of Build America Mutual Assurance Company and Ark Insurance Holdings Limited.