Company:  ADVANCED ENERGY INDUSTRIE ... (AEIS)
Form Type:  4
Filing Date:  4/18/2012 
CIK:  0000927003 
Address:  1625 SHARP POINT DR 
City, State, Zip:  FT COLLINS, Colorado 80525 
Telephone:  (970) 221-4670 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$18.25  
Change: 
0.27 (1.50%)  
Trade Time: 
May 17  
Market Cap: 
$716.44M
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES