| Date | Event |
| 30-Oct-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial Stat |
| 24-Aug-09 | Price hit new 52-week high ($318.321) |
| 21-Aug-09 | Price hit new 52-week high ($316.97) |
| 20-Aug-09 | Price hit new 52-week high ($311.89999) |
| 31-Jul-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial Stat |
| 20-May-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Regulation FD Disclosure |
| 1-May-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial Stat |
| 13-Apr-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Regulation FD Disclosure |
| 9-Mar-09 | Price hit new 52-week low ($146.101) |
| 6-Mar-09 | Price hit new 52-week low ($156.00) |
| 4-Mar-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Change in Directors or Principal Officers |
| 4-Mar-09 | Price hit new 52-week low ($182.20) |
| 27-Feb-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 10-K, Annual Report |
| 11-Feb-09 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial Stat |
| 3-Nov-08 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Other Events |
| 31-Oct-08 | WHITE MOUNTAINS INSURANCE GROUP LTD Files SEC form 8-K, Results of Operations and Financial Condition, Financial Stat |