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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000912057-02-023397
Filing Date
2002-06-07
Accepted
2002-06-07 12:57:09
Documents
2

Document Format Files

Seq Description Document Type Size
1 SC 13G a2081957zsc13g.htm SC 13G 35103
3 EXHIBIT 99(A) a2081957zex-99_a.htm EX-99.(A) 4158
  Complete submission text file 0000912057-02-023397.txt   41305
Mailing Address 865 SOUTH FIGUEROA STREET 865 SOUTH FIGUEROA STREET LOS ANGELES CA 90017
Business Address 865 SOUTH FIGUEROA ST LOS ANGELES CA 90017
TCW GROUP INC (Filed by) CIK: 0000850401 (see all company filings)

SIC: 6798 Real Estate Investment Trusts

Mailing Address TEN CANAL PARK CAMBRIDGE MA 02141
Business Address TEN CANAL PARK CAMBRIDGE MA 02141 6179491000
ASPEN TECHNOLOGY INC /DE/ (Subject) CIK: 0000929940 (see all company filings)

IRS No.: 042739697 | State of Incorp.: DE | Fiscal Year End: 0630
Type: SC 13G | Act: 34 | File No.: 005-47526 | Film No.: 02673298
SIC: 7371 Services-Computer Programming Services