Aspen Technology Announces Delisting From NASDAQ Effective February 19, 2008

Aspen Technology Announces Date of Third-Quarter Fiscal 2019 Financial Results Release

Aspen Technology Announces Date of Third-Quarter Fiscal 2018 Financial Results

Aspen Technology Announces Date of Third-Quarter Fiscal 2017 Financial Results Release, Conference Call and Webcast

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

Aspen Technology Announces Date of Third-Quarter Fiscal 2014 Financial Results Release, Conference Call and Webcast

Aspen Technology Announces Date of Third-Quarter Fiscal 2013 Financial Results Release, Conference Call and Webcast

Aspen Technology Announces Date of Third-Quarter Fiscal 2010 Financial Results Release, Conference Call and Webcast

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

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