Company:  WHITE MOUNTAINS INSURANCE ... (WTM)
Form Type:  SC TO-I/A
Filing Date:  3/8/2012 
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: 
$606.80   		Change: 
0.24 (0.04%)  
Trade Time: 
May 17   		Market Cap: 
$3.75B
Description of Business
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  FORM SC TO-I/A
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