X0202 4 2008-02-27 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 Vice Pres. & General Counsel Common Shares (restricted) 2008-02-27 4 A 0 2000 0 A 2000 D Common Shares 200 D Common Shares 139 I By 401(k) Since May 1, 2006, the date of Reporting Person's last filing, Reporting Person acquired 49 shares of WTM Common Shares under the OneBeacon 401(k) Plan. 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 December 31, 2007. Jason R. Lichtenstein, by Power of Attorney 2008-02-29