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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000932471-14-003027
Filing Date
2014-02-11
Accepted
2014-02-11 09:47:16
Documents
1

Document Format Files

Seq Description Document Type Size
1 aspentechnologyinc.htm SC 13G/A 50227
  Complete submission text file 0000932471-14-003027.txt   51691
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482-2600 6106691000
VANGUARD GROUP INC (Filed by) CIK: 0000102909 (see all company filings)

IRS No.: 231945930 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SC 13G/A

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/A | Act: 34 | File No.: 005-44607 | Film No.: 14591673
SIC: 7371 Services-Computer Programming Services