Company:  ONYX PHARMACEUTICALS INC (ONXX)
Form Type:  8-K/A
Filing Date:  7/20/2012 
CIK:  0001012140 
Address:  249 E. GRAND AVE. 
City, State, Zip:  SOUTH SAN FRANCISCO, California 94080 
Telephone:  650-266-0000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$95.65  
Change: 
0.30 (0.32%)  
Trade Time: 
May 17  
Market Cap: 
$6.96B
Description of Business
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  FORM 8-K/A
    SECTION 8 OTHER EVENTS
      ITEM 8.01 OTHER EVENTS
    SECTION 9 FINANCIAL STATEMENTS AND EXHIBITS
      ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS
    SIGNATURES
    EXHIBIT INDEX