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

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

Aspen Technology Announces Selected Financial Results for Second-Quarter Fiscal Year 2007

Aspen Technology Announces Secondary Offering of 18,000,000 Shares of Common Stock by Affiliates of Advent International

Aspen Technology Announces "Energy on Ice" -- An International Good Will Hockey Game to Benefit Youth Hockey and Charities

Aspen Technology Announces Restatement of Previously Issued Financial Statements

Aspen Technology Announces Date of Selected Preliminary Fiscal 2008 First-Quarter Financial Results Release, Conference Call and Webcast

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

Aspen Technology Announces Conversion of Series D-2 Preferred Stock to Common Stock

Schlumberger and AspenTech Combine Upstream and Downstream Strength to Provide Integrated Digital Oilfield Solutions