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CUSIP NO. 045327103   Schedule 13D   Page 1 of 22
 
 
 
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. 5)1
Aspen Technology, Inc.
 
(Name of issuer)
Common Stock, par value $0.10
 
(Title of class of securities)
045327103
 
(CUSIP number)
Jarlyth H. Gibson, Assistant 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)
December 31, 2007
 
(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 :. ¨
     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.
     1The 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).
 
 
(Continued on following pages)
(Page 1 of 22 Pages)

 

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
2 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   29,512,336
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   29,512,336
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  29,512,336
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  33.50%
     
14   TYPE OF REPORTING PERSON*
   
  CO, IA

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
3 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   28,965,435
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   28,965,435
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  28,965,435
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  32.88%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
4 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   14,426,457
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   14,426,457
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  14,426,457
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  16.38%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
5 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   4,131,728
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   4,131,728
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  4,131,728
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  4.69%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
6 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Bermuda
       
  7   SOLE VOTING POWER
     
NUMBER OF   182,597
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   182,597
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  182,597
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.21%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
7 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   413,151
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   413,151
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  413,151
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.47%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
8 
   of   
27 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   35,378
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   35,378
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  35,378
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.04%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
9 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   10,513
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   10,513
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  10,513
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.01%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
10 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   1,907,638
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   1,907,638
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  1,907,638
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  2.17%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
11 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   944,435
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   944,435
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  944,435
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  1.07%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
12 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   236,057
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   236,057
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  236,057
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.27%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
13 
   of   
27 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   3,777,641
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   3,777,641
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  3,777,641
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  4.29%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
14 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Netherlands
       
  7   SOLE VOTING POWER
     
NUMBER OF   708,275
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   708,275
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  708,275
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.80%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
15 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Netherlands
       
  7   SOLE VOTING POWER
     
NUMBER OF   472,218
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   472,218
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  472,218
     
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  
16 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   109,478
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   109,478
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  109,478
     
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  
17 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   1,947,835
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   1,947,835
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  1,947,835
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  2.21%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

                     
CUSIP No.
  
045327103 
 Schedule 13D  Page  
18 
   of   
22 

 

           
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)
   
  o
     
6   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware
       
  7   SOLE VOTING POWER
     
NUMBER OF   208,935
       
SHARES 8   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   None
       
EACH 9   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   208,935
       
WITH 10   SHARED DISPOSITIVE POWER
     
    None
     
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  208,935
     
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
   
  o
     
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0.24%
     
14   TYPE OF REPORTING PERSON*
   
  PN

 

         
CUSIP NO. 045327103   Schedule 13D   Page 19 of 22
Item 1. Security and Issuer
     This statement on Amendment No. 5 to Schedule 13D (“Amendment No. 5”) 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. 5 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 and Amendment No. 4 thereto filed with the Commission on December 22, 2006 (as so amended, the “Schedule 13D”). This Amendment No. 5 is being filed by the Reporting Persons to amend Item 5. Terms defined in the Schedule 13D are used herein as so defined.

 

         
CUSIP NO. 045327103   Schedule 13D   Page 20 of 22
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 88,087,000 shares of Common Stock outstanding as of May 8, 2007). The table has been amended to reflect sales made on behalf of each Reporting Person in 2007. 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 Shares    
    Shares   Total Number   Percentage
    Beneficially   of Shares   of Shares
Reporting Person   Owned   Sold in 2007   Outstanding
Global Private Equity IV Limited Partnership (1)
     14,426,457       971,301       16.38 %
Advent PGGM Global Limited Partnership (1)
     413,151       27,818       0.47 %
Global Private Equity III Limited Partnership (1)
     4,131,728       278,180       4.69 %
Digital Media & Communications III Limited Partnership (1)
     1,907,638       128,438       2.17 %
Digital Media & Communications III-A Limited Partnership (1)
     944,435       63,585       1.07 %
Digital Media & Communications III-B Limited Partnership (1)
     236,057       15,895       0.27 %
Digital Media & Communications III-C Limited Partnership (1)
     3,777,641       254,337       4.29 %
Digital Media & Communications III-D C.V. (1)
     708,275       47,688       0.80 %
Digital Media & Communications III-E C.V. (1)
     472,218       31,792       0.54 %
Advent Energy II Limited Partnership (1)
     1,947,835       131,142       2.21 %
 
                        
Advent Partners GPE-IV Limited Partnership (2)
     182,597       12,293       0.21 %
Advent Partners GPE-III Limited Partnership (2)
     35,378       2,382       0.04 %
Advent Partners (NA) GPE-III Limited Partnership (2)
     10,513       710       0.01 %
Advent Partners DMC III Limited Partnership (2)
     109,478       7,372       0.12 %
Advent Partners II Limited Partnership (2)
     208,935       14,067       0.24 %
Advent International Limited Partnership (1)
     28,965,435       1,950,176       32.88 %
Advent International Corporation (1), (2)
     29,512,336       1,987,000       33.50 %
 
                        
Total Group
     29,512,336       1,987,000       33.50 %

 

 

         
CUSIP NO. 045327103   Schedule 13D   Page 21 of 22
     (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 22 of 22
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.
February 8, 2008
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:
  Jarlyth H. Gibson, Assistant Compliance Officer*
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:
  Jarlyth H. Gibson, Assistant Compliance Officer *
     
ADVENT INTERNATIONAL CORPORATION
By:
  Jarlyth H. Gibson, Assistant Compliance Officer *
 
*   For all of the above:
     
/s/ Jarlyth H. Gibson
    
 
    
Jarlyth H. Gibson, Assistant Compliance Officer