Company:  ONEBEACON INSURANCE GROUP ... (OB)
Form Type:  10-K
Filing Date:  2/28/2012 
CIK:  0001369817 
Address:  601 CARLSON PARKWAY
SUITE 600
 
City, State, Zip:  MINNETONKA, Minnesota 55305 
Telephone:  (952) 852-0185 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$15.79  
Change: 
0.20 (1.28%)  
Trade Time: 
04:06 PM EST  
Market Cap: 
$371.76M
Description of Business
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  FORM 10-K
    PART I
      ITEM 1. BUSINESS
        INCOME STATEMENT
        INCOME STATEMENT
        INCOME STATEMENT
      ITEM 1A. RISK FACTORS
      ITEM 1B. UNRESOLVED STAFF COMMENTS
      ITEM 2. PROPERTIES
      ITEM 3. LEGAL PROCEEDINGS
      ITEM 4. MINE SAFETY DISCLOSURE
        NAME AND TITLE
    PART II
      ITEM 5. MARKET FOR THE COMPANY'S COMMON EQUITY, RELATED ...
      ITEM 6. SELECTED FINANCIAL DATA
      ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL ...
        STOCKHOLDERS EQUITY
        Results of Operations
        Liquidity and Capital Resources
      ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT ...
      ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
      ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ...
      ITEM 9A. CONTROLS AND PROCEDURES
      ITEM 9B. OTHER INFORMATION
    PART III
      ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
      ITEM 11. EXECUTIVE COMPENSATION
      ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS ...
      ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, ...
      ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
    PART IV
      ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
    SIGNATURES
    BALANCE SHEET
    INCOME STATEMENT
    STOCKHOLDERS EQUITY
    CASH FLOW
    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
      NOTE 20. Subsequent Events
    REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
    INCOME STATEMENT
    VALUATION AND QUALIFYING ACCOUNTS
  EXHIBIT 10.2.2
  EXHIBIT 10.3.1
  EXHIBIT 10.3.2
  EXHIBIT 10.4.2
  EXHIBIT 12.1
    RATIO COMPUTATION
  EXHIBIT 21.1
    SUBSIDIARIES
  EXHIBIT 23.1
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 31.1
    302 CERTIFICATION
  EXHIBIT 31.2
    302 CERTIFICATION
  EXHIBIT 32.1
    CERTIFICATION PURSUANT TO
  EXHIBIT 32.2
    CERTIFICATION PURSUANT TO
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