White Mountains Insurance Group, Ltd. is an exempted Bermuda limited liability company whose principal businesses are conducted through its insurance subsidiaries and other affiliates. White Mountains' common shares are listed on the New York Stock Exchange and the Bermuda Stock Exchange under the symbol "WTM." As of December 31, 2019 White Mountains has total assets of approximately $4 billion, adjusted shareholders equity of $3.3 billion, and adjusted book value per share of $1,018.