Company:  POWER INTEGRATIONS INC (POWI)
Form Type:  4
Filing Date:  4/27/2012 
CIK:  0000833640 
Address:  5245 HELLYER AVE 
City, State, Zip:  SAN JOSE, California 95138 
Telephone:  (408) 414-9200 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$44.59  
Change: 
0.44 (1.00%)  
Trade Time: 
May 17  
Market Cap: 
$1.29B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES