X0306 4 2015-01-01 1 0000776867 WHITE MOUNTAINS INSURANCE GROUP LTD WTM 0001188198 SEELIG ROBERT LAWRENCE C/O WHITE MOUNTAINS INSURANCE GROUP, LTD 80 SOUTH MAIN STREET HANOVER NH 03755 0 1 0 0 Managing Dir & General Counsel Common Shares (restricted) 2015-01-01 4 F 0 1058 630.11 D 4375 D Common Shares 13462 D Common Shares 5 I by wife and dependent children Common Shares 530 I By 401(k) On January 1, 2015, 2,500 restricted WTM Common Shares became unrestricted. 1,058 of the Common Shares were withheld by the Company to satisfy the Reporting Person's tax obligations. Reflects accumulation of 6 WTM Common Shares in Reporting Person's Company 401(k) account since his last filed report. WTM Common Shares are purchased at fair market value on the date of purchase. The information in this report is based on a plan statement dated as of December 31, 2014. Jason R. Lichtenstein, by Power of Attorney 2015-01-01