SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000929940-18-000038
Filing Date
2018-10-26
Accepted
2018-10-26 16:03:37
Documents
5
Effectiveness Date
2018-10-26

Document Format Files

Seq Description Document Type Size
1 DEFA14A a2018proxynotice.htm DEFA14A 28088
2 aspen2018noticecard001.jpg GRAPHIC 134324
3 aspen2018noticecard002.jpg GRAPHIC 187918
4 aspen2018noticecard003.jpg GRAPHIC 62865
5 aspen2018noticecard004.jpg GRAPHIC 65883
  Complete submission text file 0000929940-18-000038.txt   650568
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.: 181141674
SIC: 7371 Services-Computer Programming Services
Office of Technology