Announces $100 million share repurchase program

advanced optimization, refinery planning software, optimal planning, petroleum supply chain, crude evaluation, integrated planning and scheduling

Announces $100 Million Share Repurchase Program

Aspen Technology Appoints Dr Tom Bradicich to Its Board of Directors

Aspen Technology to Present at the Pacific Crest Emerging Technology Summit

Aspen Technology to Present at the William Blair Emerging Growth Stock Conference

Board of Directors Approve $40 Million Share Repurchase Program

Borealis Selects Aspen Mtell Prescriptive Maintenance Software to Improve Reliability

Aspen Technology to Present at the UBS Global Technology & Services Conference

Files Annual Report on Form 10-K for Fiscal Year 2009; Files Quarterly Reports on Form 10-Q for First, Second and Third Quarters Fiscal 2009; Announces Selected Preliminary Financial Results for First Quarter Fiscal 2010