Company:  WHITE MOUNTAINS INSURANCE ... (WTM)
Form Type:  SC TO-I
Filing Date:  2/24/2012 
CIK:  0000776867 
Address:  80 SOUTH MAIN ST 
City, State, Zip:  HANOVER, New Hampshire 03755 
Telephone:  603 640 2200 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$602.45  
Change: 
0.70 (0.12%)  
Trade Time: 
01:23 PM EST  
Market Cap: 
$3.72B
Description of Business
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  FORM SC TO-I
  EXHIBIT 99.(A)(1)(A)
  EXHIBIT 99.(A)(1)(B)
  EXHIBIT 99.(A)(1)(C)
  EXHIBIT 99.(A)(1)(D)
  EXHIBIT 99.(A)(1)(E)
  EXHIBIT 99.(A)(1)(F)
  EXHIBIT 99.(A)(1)(G)
  EXHIBIT 99.(A)(1)(H)
  EXHIBIT 99.(A)(1)(I)