sc13dza

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO
RULE 13d-1(a) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2(a)
(Amendment No. 8 )1

Aspen Technology, Inc.
(Name of issuer)
Common Stock, par value $0.10
(Title of class of securities)
045327103
(CUSIP number)
Jarlyth H. Gibson, Compliance Officer 617-951-9493
C/o Advent International Corporation, 75 State Street, 29th Floor
Boston, MA 02109
(Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)
May 5, 2011
(Date of event which requires filing of this statement)

     If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box :. o

     Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent.

(Continued on following pages)
(Page 1 of 21 Pages)

 

1         The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

     The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 
 

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
2 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent International Corporation
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   3,646,549
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   3,646,549
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  3,646,549
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  3.87%
     
14   TYPE OF REPORTING PERSON*
   
  CO, IA

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
3 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent International Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   3,578,982
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   3,578,982
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  3,578,982
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  3.80%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
4 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent Energy II Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   240,675
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   240,675
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  240,675
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.26%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
5 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent PGGM Global Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   51,048
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   51,048
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  51,048
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.05%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
6 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Digital Media & Communications III Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   235,707
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   235,707
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  235,707
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.25%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
7 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Digital Media & Communications III-A Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   116,696
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   116,696
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  116,696
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.12%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
8 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Digital Media & Communications III-B Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
 
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   29,165
     
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
     
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   29,165
     
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  29,165
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.03%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
9 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Digital Media & Communications III-C Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   466,768
     
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
     
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   466,768
     
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  466,768
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.50%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
10 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Digital Media & Communications III-D C.V.
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Netherlands
       
  7   SOLE VOTING POWER
     
NUMBER OF   87,513
     
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
     
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   87,513
     
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  87,513
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.09%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
11 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Digital Media & Communications III-E C.V.
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Netherlands
       
  7   SOLE VOTING POWER
     
NUMBER OF   58,349
     
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
     
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   58,349
     
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  58,349
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.06%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D Page  
12 
   of   
21 

 

           
1   NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Global Private Equity III Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   510,519
     
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
     
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   510,519
     
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  510,519
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.54%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
13 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Global Private Equity IV Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   1,782,542
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   1,782,542
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  1,782,542
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  1.89%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
14 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent Partners (NA) GPE-III Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   1,293
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   1,293
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  1,293
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.00%
     
14   TYPE OF REPORTING PERSON *
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
15 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent Partners DMC III Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   13,527
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   13,527
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  13,527
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.01%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
16 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent Partners GPE-III Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   4,369
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   4,369
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  4,369
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.00%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP NO.
  
045327103 
 Schedule 13D  Page  
17 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent Partners GPE-IV Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   22,563
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   22,563
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  22,563
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.02%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
18 
   of   
21 

 

           
1   NAME OF REPORTING PERSON

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Advent Partners II Limited Partnership
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ 
  (b)   o 
     
3   SEC USE ONLY
   
   
     
4   SOURCE OF FUNDS
   
  WC
     
5   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
   
   
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   25,815
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   25,815
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  25,815
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.03%
     
14   TYPE OF REPORTING PERSON
   
  PN

 

CUSIP NO. 045327103   Schedule 13D   Page 19 of 21
Item 1. Security and Issuer
     This statement on Amendment No. 8 to Schedule 13D (“Amendment No. 8”) relates to the Reporting Persons’ beneficial ownership interest in the Common Stock, par value $0.10 per share, of Aspen Technology, Inc., a Delaware corporation (the “Corporation”). The address of the principal executive office of the Corporation is 200 Wheeler Road, Burlington, MA 01803. This Amendment No. 8 amends the initial statement on Schedule 13D filed with the Securities and Exchange Commission (the “Commission”) on August 22, 2003, as amended by Amendment No. 1 thereto filed with the Commission on June 6, 2006, Amendment No. 2 thereto filed with the Commission on July 26, 2006, Amendment No. 3 thereto filed with the Commission on December 15, 2006, Amendment No. 4 thereto filed with the Commission on December 22, 2006, Amendment No. 5 thereto filed with the Commission on February 14, 2008, Amendment No. 6 thereto filed with the Commission on September 30, 2010 and Amendment No. 7 thereto filed with the Commission on February 23, 2011 (as so amended, the “Schedule 13D”). This Amendment No. 8 is being filed by the Reporting Persons to amend Item 5. Terms defined in the Schedule 13D are used herein as so defined.
Item 5. Interest in Securities of the Issuer.
          Item 5 of the Schedule 13D is hereby amended as set forth in the following table which reports the aggregate number and percentage of the Common Stock beneficially owned by each Reporting Person named in Item 2 of the Schedule 13D (based upon 94,113,146 shares of Common Stock outstanding as of April 25, 2011). The table has been amended to reflect sales made on behalf of each Reporting Person since Amendment No. 7 was filed. The table has been amended to reflect sales made on behalf of each Reporting Person. The aggregate number and percentage of the Common Stock beneficially owned by each Reporting Person is calculated in accordance with Rule 13d-3.
                                 
    Number of     Percentage of     Number of Shares     Number of Shares  
    Shares Beneficially     Common Stock     Acquired during     Disposed of during  
    Owned     Outstanding     Past 60 Days     Past 60 Days  
Reporting Person Advent International Corporation (1),(2)
     3,646,549       3.87 %     0       3,142,387  
Advent International Limited Partnership (1)
     3,578,982       3.80 %     0       3,084,150  
Advent Energy II Limited Partnership (1)
     240,675       0.26 %     0       207,400  
Advent PGGM Global Limited Partnership (1)
     51,048       0.05 %     0       43,991  
Digital Media & Communications III Limited Partnership (1)
     235,707       0.25 %     0       203,119  
Digital Media & Communications III-A Limited Partnership (1)
     116,696       0.12 %     0       100,561  
Digital Media & Communications III-B Limited Partnership (1)
     29,165       0.03 %     0       25,134  
Digital Media & Communications III-C Limited Partnership (1)
     466,768       0.50 %     0       402,233  
Digital Media & Communications III-D C.V. (1)
     87,513       0.09 %     0       75,416  
Digital Media & Communications III-E C.V. (1)
     58,349       0.06 %     0       50,279  
Global Private Equity III Limited Partnership (1)
     510,519       0.54 %     0       439,934  
Global Private Equity IV Limited Partnership (1)
     1,782,542       1.89 %     0       1,536,083  
Advent Partners (NA) GPE-III Limited Partnership (2)
     1,293       0.00 %     0       1,123  
Advent Partners DMC III Limited Partnership (2)
     13,527       0.01 %     0       11,657  

 

 

CUSIP NO. 045327103   Schedule 13D   Page 20 of 21
                                 
    Number of     Percentage of     Number of Shares     Number of Shares  
    Shares Beneficially     Common Stock     Acquired during     Disposed of during  
    Owned     Outstanding     Past 60 Days     Past 60 Days  
Advent Partners GPE-III Limited Partnership (2)
     4,369       0.00 %     0       3,768  
Advent Partners GPE-IV Limited Partnership (2)
     22,563       0.02 %     0       19,441  
Advent Partners II Limited Partnership (2)
     25,815       0.03 %     0       22,248  
Total Group
     3,646,549       3.87 %     0       3,142,387  
 
(1)   Advent International Corporation (“AIC”) is the General Partner of Advent International Limited Partnership (“AILP”) which in turn is the General Partner of the indicated Reporting Persons. As such, AIC has the sole power to vote and dispose of the securities owned by the indicated Reporting Persons. The beneficial ownership of AIC and AILP derive from such power.
 
(2)   AIC is the General Partner of the indicated Reporting Person. As such, AIC has the sole power to vote and dispose of the securities owned by the indicated reporting persons. The beneficial ownership of AIC derives from such power.
 
(b)   Each of the Reporting Persons listed in the table set forth above has sole voting and dispositive power over the Common Stock beneficially owned by it as indicated above.

 

 

CUSIP NO. 045327103   Schedule 13D   Page 21 of 21
SIGNATURE
     After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
May 10, 2011
Global Private Equity IV Limited Partnership
Global Private Equity III Limited Partnership
Advent PGGM Global Limited Partnership
Digital Media & Communications III Limited Partnership
Digital Media & Communications III-A Limited Partnership
Digital Media & Communications III-B Limited Partnership
Digital Media & Communications III-C Limited Partnership
Digital Media & Communications III-D C.V.
Digital Media & Communications III-E C.V.
Advent Energy II Limited Partnership
     
By:
  Advent International Limited Partnership,
 
  General Partner
 
    
By:
  Advent International Corporation,
 
  General Partner
 
    
By:
  Anna J. Guerin, Attorney*
Advent International Limited Partnership
Advent Partners II Limited Partnership
Advent Partners GPE-IV Limited Partnership
Advent Partners GPE-III Limited Partnership
Advent Partners (NA) GPE-III Limited Partnership
Advent Partners DMC-III Limited Partnership
     
By:
  Advent International Corporation,
 
  General Partner
 
    
By:
  Anna J. Guerin, Attorney*
ADVENT INTERNATIONAL CORPORATION
     
By:
  Anna J. Guerin, Attorney*
*For all of the above:
/s/ Anna J. Guerin
 
Anna J. Guerin, Attorney