Company:  BERKSHIRE HATHAWAY INC (BRK'A)
Form Type:  EFFECT
Filing Date:  2/27/2012 
CIK:  0001067983 
Address:  3555 FARNAM STREET 
City, State, Zip:  OMAHA, Nebraska 68131 
Telephone:  (402) 346-1400 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$169,400.00   		Change: 
2097.00 (1.25%)  
Trade Time: 
May 17   		Market Cap: 
$150.94B
Description of Business
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  FORM EFFECT
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