Company:  BERKSHIRE HATHAWAY INC (BRK'A)
Form Type:  10-Q
Filing Date:  5/4/2012 
CIK:  0001067983 
Address:  3555 FARNAM STREET 
City, State, Zip:  OMAHA, Nebraska 68131 
Telephone:  (402) 346-1400 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$190,639.00  
Change: 
1739.00 (0.92%)  
Trade Time: 
Apr 17  
Market Cap: 
$163.57B
Description of Business
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  FORM 10-Q
    Part I Financial Information
      Item 1. Financial Statements
        BALANCE SHEET
        INCOME STATEMENT
        STOCKHOLDERS EQUITY
        CASH FLOW
        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
      Item 2. Management's Discussion and Analysis of Financial ...
      Item 3. Quantitative and Qualitative Disclosures About ...
      Item 4. Controls and Procedures
    Part II Other Information
      Item 1. Legal Proceedings
      Item 1A. Risk Factors
      Item 2. Unregistered Sales of Equity Securities and Use of ...
      Item 3. Defaults Upon Senior Securities
      Item 4. Mine Safety Disclosures
      Item 5. Other Information
      Item 6. Exhibits
    SIGNATURE
  EXHIBIT 12
    RATIO COMPUTATION
  EXHIBIT 31.1
    CERTIFICATIONS
  EXHIBIT 31.2
    CERTIFICATIONS
  EXHIBIT 32.1
    Section 1350 Certifications
  EXHIBIT 32.2
    Section 1350 Certifications
  EXHIBIT 95
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