Adds Relief Valve Sizing Technology to aspenONE Engineering Software

Demonstrations Will Also Showcase How AspenTech Performance Management and Process Control Solutions Improve Operational Efficiency, Increase Equipment Effectiveness, and Reduce Emissions

AspenTech Announces Accelerated Share Repurchase Program

Aspen Technology Receives Staff Determination from Nasdaq

Aspen Technology Receives “Wells Notice”

Aspen Technology Selected by Cabot Corp. to Enhance its Global Supply Chain Systems

Miller Joins Company’s Senior Management Team, Bringing over Twenty Years Executive Leadership and Financial Management Experience

Aspen Technology Completes Restatement and Files Amended Annual Report on Form 10-K Reports Record Results for Fiscal Second Quarter 2007

Aspen Technology Files Extension for Second Quarter Form 10-Q

Aspen Technology Names Karl Johnsen Chief Financial Officer