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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001532155-17-000071
Filing Date
2017-02-10
Accepted
2017-02-10 11:24:40
Documents
1

Document Format Files

Seq Description Document Type Size
1 SEC SCHEDULE 13G SEC13G_Filing.htm SC 13G/A 17256
  Complete submission text file 0001532155-17-000071.txt   18869
Mailing Address 20 CROSBY DRIVE BEDFORD MA 01730
Business Address 20 CROSBY DRIVE BEDFORD MA 01730 781-221-4302
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.: 17590887
SIC: 7371 Services-Computer Programming Services

Mailing Address 1345 AVENUE OF THE AMERICAS NEW YORK NY 10105
Business Address 1345 AVENUE OF THE AMERICAS NEW YORK NY 10105 2129691000
ALLIANCEBERNSTEIN L.P. (Filed by) CIK: 0001109448 (see all company filings)

IRS No.: 134064930 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6282 Investment Advice