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

Aspen Technology Names Mark Sullivan Chief Financial Officer

Aspen Technology Announces Date of Selected Preliminary Fiscal 2009 First-Quarter Financial Results Release, Conference Call and Webcast

Aspen Technology LandT Technology Services Partner to Deliver Engineering Solutions

Aspen Technology Announces Date of Selected Preliminary Fiscal 2008 Fourth-Quarter and Full Year Financial Results Release

Aspen Technology Joins Alliance to End Plastic Waste

Aspen Technology Announces Date of Second-Quarter Fiscal 2018 Financial Results Release

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

Aspen Technology Announces Date of Second-Quarter Fiscal 2015 Financial Results Release, Conference Call and Webcast

Aspen Technology Comments on Civil Complaint Filed by the Securities and Exchange Commission Against Three Former Officers and the Criminal Complaint Filed by the U.S. Attorney Against One of them, David L. McQuillin