Company:  NANOSPHERE INC (NSPH)
Form Type:  10-K
Filing Date:  2/28/2013 
CIK:  0001105184 
Address:  4088 COMMERCIAL AVE 
City, State, Zip:  NORTHBROOK, Illinois 60062 
Telephone:  847-400-9000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$1.83  
Change: 
-0.02 (-1.08%)  
Trade Time: 
Apr 17  
Market Cap: 
$140.69M
Description of Business
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  FORM 10-K
    PART I.
      Item 1. Business.
      Item 1A. Risk Factors.
      Item 1B. Unresolved Staff Comments.
      Item 2. Properties.
      Item 3. Legal Proceedings.
      Item 4. Mine Safety Disclosures.
    PART II
      Item 5. Market for Registrant's Common Equity, Related ...
      Item 6. Selected Financial Data.
      Item 7. Management's Discussion and Analysis of Financial ...
        Liquidity and Capital Resources
      Item 7A. Quantitative and Qualitative Disclosures About ...
      Item 8. Financial Statements and Supplementary Data.
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        BALANCE SHEET
        BALANCE SHEET
        INCOME STATEMENT
        STOCKHOLDERS EQUITY
        CASH FLOW
        Notes to Financial Statements
      Item 9. Changes in and Disagreements With Accountants on ...
      Item 9A. Controls and Procedures.
      Item 9B. Other Information.
    PART III.
      Item 10. Directors and Executive Officers of the Registrant.
      Item 11. Executive Compensation.
      Item 12. Security Ownership of Certain Beneficial Owners and ...
      Item 13. Certain Relationships and Related Transactions, and ...
      Item 14. Principal Accounting Fees and Services.
    PART IV.
      Item 15. Exhibits, Financial Statement Schedules.
    Reports of Independent Registered Public Accounting Firm
    SIGNATURES
  EXHIBIT 23.1
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 31.1
    CERTIFICATION
  EXHIBIT 31.2
    CERTIFICATION
  EXHIBIT 32.1
    CERTIFICATION PURSUANT TO
  EXHIBIT 32.2
    CERTIFICATION PURSUANT TO
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