SC 13G | SEC Filings Hub

Filing metadata

Accession number: 0000919574-10-000178
Form type: SC 13G
Filer: ASPEN TECHNOLOGY INC /DE/
CIK: CIK 929940
Filed: Jan 15, 2010
Reporting period: Nov 16, 2009
Description: Passive 5%+ stake

Documents

0000919574-10-000178-index.htm

Complete submission

0000919574-10-000178.txt

directory listing

Filed by

ASPEN TECHNOLOGY INC /DE/