Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0001104659-10-021305
Filing Date
2010-04-22
Accepted
2010-04-22 17:29:43
Documents
4
Period of Report
2009-06-30

Document Format Files

Seq Description Document Type Size
1 10-K/A a10-8553_110ka.htm 10-K/A 810176
2 EX-31.1 a10-8553_1ex31d1.htm EX-31.1 5929
3 EX-31.2 a10-8553_1ex31d2.htm EX-31.2 5927
4 GRAPHIC g85531bci001.gif GRAPHIC 154
  Complete submission text file 0001104659-10-021305.txt   823790
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)

EIN.: 042739697 | State of Incorp.: DE | Fiscal Year End: 0630
Type: 10-K/A | Act: 34 | File No.: 001-34630 | Film No.: 10765297
SIC: 7371 Services-Computer Programming Services