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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000929940-19-000051
Filing Date
2019-12-03
Accepted
2019-12-03 16:21:29
Documents
2
Effectiveness Date
2019-12-03

Document Format Files

Seq Description Document Type Size
1 DEFA14A a2019proxyletter.htm DEFA14A 39294
2 aspentechnologylogoa42.jpg GRAPHIC 12241
  Complete submission text file 0000929940-19-000051.txt   51867
Mailing Address 20 CROSBY DRIVE BEDFORD MA 01730
Business Address 20 CROSBY DRIVE BEDFORD MA 01730 781-221-4302
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.: 191266030
SIC: 7371 Services-Computer Programming Services
Office of Technology