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Filing Detail
Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000014661-11-000003
Filing Date
2011-02-10
Accepted
2011-02-10 17:11:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 ASPEN TECHNOLOGY, INC 13G 123110 aspentechnologythirteeng.txt SC 13G 8285
  Complete submission text file 0000014661-11-000003.txt   10099
Mailing Address 140 BROADWAY NEW YORK NY 10005-1101
Business Address 140 BROADWAY NEW YORK NY 10005-1101 2124938200
BROWN BROTHERS HARRIMAN & CO (Filed by) CIK: 0000014661 (see all company filings)

IRS No.: 134973745 | State of Incorp.: NY
Type: SC 13G

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.: 11593514
SIC: 7371 Services-Computer Programming Services