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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-15-072480
Filing Date
2015-10-23
Accepted
2015-10-23 16:24:22
Documents
1
Effectiveness Date
2015-10-23

Document Format Files

Seq Description Document Type Size
1 DEFA14A a15-21288_3defa14a.htm DEFA14A 44131
  Complete submission text file 0001104659-15-072480.txt   45112
Mailing Address 200 WHEELER ROAD BURLINGTON MA 01803
Business Address 200 WHEELER ROAD BURLINGTON MA 01803 6179491000
ASPEN TECHNOLOGY INC /DE/ (Filer) CIK: 0000929940 (see all company filings)

IRS No.: 042739697 | State of Incorp.: DE | Fiscal Year End: 0630
Type: DEFA14A | Act: 34 | File No.: 001-34630 | Film No.: 151173122
SIC: 7371 Services-Computer Programming Services