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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000315066-20-001486
Filing Date
2020-05-11
Accepted
2020-05-11 08:45:12
Documents
1

Document Format Files

Seq Description Document Type Size
1 filing.txt SC 13G 6861
  Complete submission text file 0000315066-20-001486.txt   8407
Mailing Address 245 SUMMER STREET BOSTON MA 02210
Business Address 245 SUMMER STREET BOSTON MA 02210 6175706339
FMR LLC (Filed by) CIK: 0000315066 (see all company filings)

IRS No.: 043532603 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000

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 | Act: 34 | File No.: 005-44607 | Film No.: 20862808
SIC: 7371 Services-Computer Programming Services
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