Company:  ARENA PHARMACEUTICALS INC (ARNA)
Form Type:  10-Q
Filing Date:  5/2/2012 
CIK:  0001080709 
Address:  6154 NANCY RIDGE DRIVE 
City, State, Zip:  SAN DIEGO, California 92121 
Telephone:  858-453-7200 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$7.98  
Change: 
-0.02 (-0.25%)  
Trade Time: 
May 17  
Market Cap: 
$1.74B
Description of Business
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  FORM 10-Q
    PART I. FINANCIAL INFORMATION
      Item 1. Financial Statements.
        BALANCE SHEET
        INCOME STATEMENT
        Notes to Unaudited Condensed Consolidated Financial Statements
          BALANCE SHEET
      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 6. Exhibits.
    SIGNATURES
    EXHIBIT INDEX
  EXHIBIT 31.1
    CERTIFICATION
  EXHIBIT 31.2
    CERTIFICATION
  EXHIBIT 32.1
    CERTIFICATION PURSUANT TO