Company:  AFFYMETRIX INC (AFFX)
Form Type:  4
Filing Date:  5/15/2012 
CIK:  0000913077 
Address:  3420 CENTRAL EXPRESSWAY 
City, State, Zip:  SANTA CLARA, California 95051 
Telephone:  (408) 731-5000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$3.75  
Change: 
0.005 (0.13%)  
Trade Time: 
03:07 PM EST  
Market Cap: 
$266.26M
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES