白山保险集团 WTM

Mr. Caffrey was appointed as Chief Executive Officer in January 2026. Prior to that, he served as President and Chief Financial Officer of the Company since April 2024. Prior to that, he served as Executive Vice President and Chief Financial Officer. Prior to joining White Mountains in March 2022, Mr. Caffrey served as Chief Executive Officer of Aon's Global Affinity business. Prior to that, he served as Chief Financial Officer of Aon Risk Solutions globally and as Chief Financial Officer of Aon Risk Solutions Americas. Prior to joining Aon, Mr. Caffrey spent 12 years with McKinsey & Company.

Mr. Harrison was appointed as President in January 2026. Prior to that, he served as Executive Vice President and Chief Strategy Officer of the Company. Prior to joining White Mountains in June 2024, Mr. Harrison worked for the Zurich Insurance Group from 2015 to 2024, most recently as the Chief Financial Officer of Farmers Group, Inc. Prior to joining Farmers, he was CEO of Regional Markets EMEA for Zurich Insurance Group, based in Zurich. Prior to this, he led the Zurich Group's mergers, acquisitions and partnership activities globally. Prior to Zurich, Mr. Harrison was an investment banker at Lehman Brothers and HSBC. Mr. Harrison also serves as a director of BAM.

Mr. Seelig is Executive Vice President and General Counsel of the Company. Since 2022, Mr. Seelig has also served as Head of Investor Relations. Prior to joining White Mountains in 2002, Mr. Seelig was with the law firm of Cravath, Swaine & Moore.

Ms. Hildreth was appointed as Managing Director and Chief Accounting Officer of the Company in May 2021. Prior to that, she served as Managing Director and General Auditor of WM Capital. She joined White Mountains in 2003 and has served in a variety of accounting and audit-related positions with the Company and its subsidiaries. Prior to joining the Company, Ms. Hildreth spent 13 years with PricewaterhouseCoopers.

Mr. Reid T. Campbell, Experience: President of White Mountains Insurance Group, Ltd. from 2022 to February 2024; Prior to being named President, served as Chief Financial Officer of White Mountains from 2017 to 2022; Served as President of White Mountains Advisors from 2015 to 2017; Held a variety of financial management positions with White Mountains and its subsidiaries from 1994 to 2015; Prior to joining White Mountains, spent three years with KPMG. Select Board Service: Build America Mutual Assurance Co. (Private); Ark Insurance Holdings Limited (Private).

Weston M. Hicks, Appointed Chairman of the Board in May 2023. Served as President & CEO of Alleghany Corporation from 2004 to 2021. Served as Executive Vice President for Alleghany Corporation from 2002 to 2004. Served as Executive Vice President and Chief Financial Officer for The Chubb Corporation from 2001 to 2002. Senior Research Analyst for J.P. Morgan Securities from 1999 to 2001. Senior Research Analyst for Sanford C. Bernstein from 1991 to 1999. Associate Director, Moody's Investor Service from 1986 to 1991. Prior to 1986, Mr. Hicks had several years of experience in the banking and accounting industry. Served as a director of Alleghany Corporation from 2004 to 2021.

Peter M. Carlson, Experience: Served as Chief Executive Officer of Spectral AI, Inc., an artificial intelligence (AI) company focused on medical diagnostics, from February to October 2024; Formerly served as Chief Financial Officer of Spectral AI, Inc., joined January 2024; Served as Chief Financial Officer of MiMedx Group, a biopharmaceutical company, from 2019 to 2023; Served as Executive Vice President and Chief Operating Officer of Brighthouse Financial, a U.S. annuity and life insurance company that spun off from MetLife, from 2017 to 2018; Served as Executive Vice President and Chief Accounting Officer at MetLife from 2009 to 2017; Formerly at Wachovia Corporation from 2002 to 2009, where he served as Executive Vice President and Corporate Controller from 2006 to 2008; Joined Wachovia after fifteen years at Arthur Andersen, where he served as an audit partner working in financial services, manufacturing, commercial services and distribution; Serves as a Trustee of Wake Forest University.

Philip A. Gelston, Joined Cravath, Swaine & Moore LLP in 1978, became a partner in 1984, and retired in December 2017. Currently advises Cravath regarding governance, risk management, professional responsibility requirements and compliance issues. Has extensive experience in mergers and acquisitions, joint ventures and general corporate counseling, encompassing complicated negotiated transactions, hostile transactions (both offense and defense), cross border transactions, activist defense, and advising boards and senior executives, particularly on complex transactions, corporate governance and managing crisis situations. Serves as a Trustee for the Friends of Democracy Prep New York Charter Schools.

Mary C. Choksi, Experience: Founding Partner (and Senior Managing Director/Senior Advisor until February 2017) of Strategic Investment Group, an investment management enterprise founded in 1987 which designs and implements global investment strategies for institutional and individual investors; Founder and Managing Director of Emerging Markets Management LLC until May 2011; Prior to 1987, worked in the Pension Investment Division of the World Bank; Served as a director of Avis Budget Group from 2007 to 2020. Select Board Service: Omnicom Group - Lead Independent Director, Audit (Chair) and Compensation Committees (Public); Franklin Templeton Mutual Funds (24 investment companies) - Audit Committee.

Margaret Dillon, Served as Executive Vice President and Chief Customer Officer, US Consumer Markets, for Liberty Mutual Insurance Company from 2014 to 2017; Served as Senior Vice President and Chief Financial Officer, Personal Lines Insurance, for Liberty Mutual Insurance Company from 2002 to 2014; Served as Controller, Personal Markets, for Liberty Mutual Insurance Company from 1998 to 2001; Served in various technology and finance roles for International Paper from 1984 to 1993; Select Board Service: Guidewire Software (Public).

Suzanne F. Shank, President, CEO and co-founder of Siebert Williams Shank & Co., LLC (formerly Siebert Cisneros Shank & Co., LLC), a full service investment banking and financial services company established in 1996. Prior to her financial services career, she worked as a structural engineer at General Dynamics Corporation. Serves as Board Member of Skillman Foundation, Kresge Foundation, Spelman College and Global Citizen. Select Board Service: Consumers Energy Company - Audit Committee (Public); Rocket Companies, Inc. - Audit Committee (Public).

On August 26, 2026, the Board of Directors of White Mountains Insurance Group, Ltd. elected Stephen Klar as a director of the Company. Mr. Klar was formerly the President and a Managing Partner of Wellington Management Group LLP.

Mr. John Chu, Founder and CEO of Bamboo Insurance since 2018 ?????? Prior to Bamboo, served as Chairman and CEO of The McGraw Group from 2014 to 2017 Operating Partner at Altamont Capital Partners from 2011 to 2014 Operating Partner at Golden Gate Capital from 2009 to 2011 Senior Vice President, eBusiness & Technology at The Hartford from 2003 to 2008 Prior to his role as SVP, served as Chief Financial Officer, Personal Lines at The Hartford from 1999 to 2003 Managing Consultant at Tillinghast Tower-Perrin from 1995 to 1999 Mr. Chu has extensive expertise in the insurance and investments industries gained over the course of more than 25 years in the insurance and financial services industries.

Mr. Papamichael was appointed as Managing Director and Chief Financial Officer in January 2026. Prior to that, he served as Managing Director and Deputy Chief Financial Officer. Prior to joining White Mountains in 2020, Mr. Papamichael served as a Senior Vice President at Hamilton Insurance Group. Prior to joining Hamilton, Mr. Papamichael held various senior positions at Sirius Group, including when it was owned by White Mountains prior to 2016.