Aspen Technology Announces Financial Results for the First Quarter Fiscal 2011

Board of Directors Approve $40 Million Share Repurchase Program

Final Judgment and Permanent Injunction Entered Against M3 Technology in Favor of Aspen Technology

Final Judgment and Permanent Injunction Entered Against M3 Technology in Favor of Aspen Technology

Aspen Technology Announces Delisting From NASDAQ Effective February 19, 2008

Aspen Technology Announces Delisting From NASDAQ Effective February 19, 2008

Press Release

Aspen Technology Announces Date of Third-Quarter Fiscal 2019 Financial Results Release, Conference Call and Webcast

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

Press Release

Aspen Technology Announces Date of Third-Quarter Fiscal 2018 Financial Results Release, Conference Call and Webcast

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

Press Release

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

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 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 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 2013 Financial Results Release, Conference Call and Webcast

Page 35 of 221