Aspen Technology Files Quarterly Report on Form 10-Q for the Second and Third Quarters of Fiscal 2008

Announces Selected Preliminary Financial Results for the Second Quarter of Fiscal 2009

Aspen Technology Names Mark Sullivan Chief Financial Officer

Aspen Technology Names Mark Sullivan Chief Financial Officer

Aspen Technology Announces Financial Results for the First-Quarter Fiscal Year 2010

Filing of 10-Q brings company current with SEC filing requirements Reports its first quarter under the new aspenONE subscription-based licensing model

Aspen Technology Announces Financial Results for Fiscal Year 2009

Files Annual Report on Form 10-K for Fiscal Year 2009; Files Quarterly Reports on Form 10-Q for First, Second and Third Quarters Fiscal 2009; Announces Selected Preliminary Financial Results for First Quarter Fiscal 2010

Aspen Technology Announces Selected Preliminary Financial Results for the Third Quarter of Fiscal Year 2009

Aspen Technology Announces Selected Preliminary Financial Results for the Third Quarter of Fiscal Year 2009

Aspen Technology Announces Selected Preliminary Financial Results for the Fourth Quarter and Fiscal Year 2009

Announces new subscription-based commercial model for aspenONE suite of solutions

AspenTech Simplifies Enterprise Rollout and Management of AspenONE Using Latest Microsoft Technologies

AspenTech Simplifies Enterprise Rollout and Management of AspenONE Using Latest Microsoft Technologies

AspenTech’s Patented aspenONE Master Data Model Delivers Asset Lifecycle Management

AspenTech’s Patented aspenONE Master Data Model Delivers Asset Lifecycle Management

Leading Energy, Chemicals, and Other Process Industry Manufacturers Gather in Seattle for AspenTech Supply Chain Management User Conference

Leading Energy, Chemicals, and Other Process Industry Manufacturers Gather in Seattle for AspenTech Supply Chain Management User Conference

AspenTech Software Used by Process Manufacturing Industry to Combat Global Warming

AspenTech Software Used by Process Manufacturing Industry to Combat Global Warming

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