AspenTech Announces Selected Preliminary Q407 Results and Update on Restatement of Previously Issued Financial Statements

AspenTech Receives Additional Staff Determination Letter from Nasdaq Relating to Quarterly Report on Form 10-Q

aspenONE Delivers Major Performance Improvements at PetroChina Polyethylene Plant

AspenTech Announces New Corporate Headquarters

Receives SSPA’s STAR Award for Excellence in Self-Service Capabilities

Aspen Technology to Present at the 9th Annual Needham Growth Conference

Aspen Technology Files Extension for Second Quarter Form 10-Q

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

Aspen Technology Appoints James Hintlian to Launch Pharmaceuticals Business Unit

Aspen Technology Receives Staff Determination from Nasdaq