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.: 22904584
SIC: 7371 Services-Computer Programming Services
Mailing Address
55 EAST 52ND STREET
NEW YORK NY 10055
Business Address
55 EAST 52ND STREET
NEW YORK NY 10055
212-810-5300
BlackRock Inc. (Filed by)
CIK: 0001364742 (see all company filings)
IRS No.: 320174431 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 6211 Security Brokers, Dealers & Flotation Companies
