Company:  ASPEN TECHNOLOGY INC /DE/ (AZPN)
Form Type:  4
Filing Date:  4/3/2012 
CIK:  0000929940 
Address:  200 WHEELER ROAD 
City, State, Zip:  BURLINGTON, Massachusetts 01803 
Telephone:  (617) 949-1000 
Fiscal Year:  06/30 
Last Trade
Last Trade: 
$30.18   		Change: 
0.07 (0.23%)  
Trade Time: 
May 24   		Market Cap: 
$2.83B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES
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