WHITE MOUNTAINS INSURANCE GROUP LTD

As of December 31, 2025, White Mountains employed 1,648 people (consisting of 85 people at the Company, WM Capital, its other intermediate holding companies, WM Advisors, WTM Partners and HG Global, 300 people at Ark, 17 people at Kudu, 288 people at Distinguished and 958 people at its consolidated Other Operating Businesses).

White Mountains’s strength lies in its people, and it proactively supports each employee’s well-being and development. The Company’s Board of Directors receives periodic reporting on employee satisfaction and concerns and interacts with employees across White Mountains. White Mountains has an inclusive, team-oriented culture in which all employees are treated with respect. Under the guidelines of the Company’s Code of Business Conduct, it is firmly committed to providing equal employment opportunities. White Mountains values diversity of backgrounds, experiences and ideas, which it believes fosters more engaging discussions, stronger collaboration and better company performance. White Mountains invests in the professional development of its workforce and is committed to the long-term development of its workforce and the cultivation of its next generation of leaders.