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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000919574-10-000178
Filing Date
2010-01-15
Accepted
2010-01-15 16:24:58
Documents
1

Document Format Files

Seq Description Document Type Size
1 ASPEN TECHNOLOGY d1063696_13g.htm SC 13G 161905
  Complete submission text file 0000919574-10-000178.txt   163738
Mailing Address 200 WHEELER ROAD BURLINGTON MA 01803
Business Address 200 WHEELER ROAD BURLINGTON MA 01803 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.: 005-44607 | Film No.: 10530664
SIC: 7371 Services-Computer Programming Services

Mailing Address 461 FIFTH AVENUE 24TH FLOOR NEW YORK NY 10017
Business Address 461 FIFTH AVENUE 24TH FLOOR NEW YORK NY 10017 212-792-8811
CADIAN CAPITAL MANAGEMENT, LLC (Filed by) CIK: 0001423686 (see all company filings)

IRS No.: 000000000
Type: SC 13G