Company:  OSI SYSTEMS INC (OSIS)
Form Type:  10-Q
Filing Date:  1/25/2012 
CIK:  0001039065 
Address:  12525 CHADRON AVE 
City, State, Zip:  HAWTHORNE, California 90250 
Telephone:  (310) 978-0516 
Fiscal Year:  06/30 
Last Trade
Last Trade: 
$66.34  
Change: 
1.49 (2.30%)  
Trade Time: 
May 17  
Market Cap: 
$1.32B
Description of Business
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  FORM 10-Q
    PART I. FINANCIAL INFORMATION
      Item 1. Condensed Consolidated Financial ...
        BALANCE SHEET
        INCOME STATEMENT
        CASH FLOW
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
          BALANCE SHEET
      Item 2. Management's Discussion and ...
      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. Default Upon Senior Securities - None
      Item 5. Other Information
      Item 6. Exhibits
    Signatures
  EXHIBIT 10.1
  EXHIBIT 31.1
    CERTIFICATION
  EXHIBIT 31.2
    CERTIFICATION
  EXHIBIT 32.1
    CERTIFICATION
  EXHIBIT 32.2
    CERTIFICATION