Company:  ONYX PHARMACEUTICALS INC (ONXX)
Form Type:  8-K
Filing Date:  4/28/2011 
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: 
$93.03  
Change: 
0.12 (0.13%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
$6.77B
Description of Business
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  FORM 8-K
    SECTION 7 REGULATION FD
      ITEM 7.01 REGULATION FD DISCLOSURE
    SECTION 8 OTHER EVENTS
      ITEM 8.01 OTHER EVENTS
    SIGNATURE