BEDFORD, Mass.--(BUSINESS WIRE)--Aspen Technology, Inc. (NASDAQ: AZPN), a leading provider of software and services to the process industries, today announced that Karl Johnsen, currently AspenTech’s Vice President and Corporate Controller, has been promoted to Senior Vice President and Chief Financial Officer, effective October 1, 2015. Johnsen will succeed Mark Sullivan, who previously announced he will retire from AspenTech at the end of September. Johnsen has more than 20 years of financial
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