Aspen Technology Announces Selected Financial Results for Fourth-Quarter Fiscal Year 2006, Stock Option Grant Review and Restatement

Aspen Technology Announces Restatement of Fiscal 2006 Results

Strong top line performance drives highest operating profit and margin since Fiscal 1998

Aspen Technology Announces Financial Results for Fourth-Quarter Fiscal Year 2006 and Completion of Stock Option Review and Restatement

Aspen Technology Announces Financial Results for First-Quarter Fiscal Year 2007

Strong license revenue growth drives significant upside on profitability

Aspen Technology Announces Date of Third-Quarter 2006 Financial Results Release, Conference Call and Webcast

Aspen Technology Announces Date of Second-Quarter 2006 Financial Results Release, Conference Call and Webcast

Eliminates approximately $15 million in future annual preferred stock discount and dividends

Aspen Technology Announces Date of Fiscal 2007 First-Quarter Financial Results Release, Conference Call and Webcast