Mark Fadden

Mark Fadden CPA, MST has a robust background in tax management and compliance spanning several years. Experience includes serving as Director of IRS Audit and Compliance at The ServiceMaster Company from October 1992 to October 2007, transitioning to Senior Manager of IRS Audit & U.S. Compliance at Accenture from November 2007 to March 2012. From April 2012 to August 2016, Mark Fadden owned Caring Transitions of Chicago Western Suburbs. In recent roles, Fadden was Director of Tax at Horizon from April 2021 until its acquisition by Amgen in October 2023, where responsibilities included U.S. Tax Compliance and IRS Tax Controversies. Currently, Fadden serves as Director of Tax at Amgen, furthering expertise in tax-related aspects of mergers and acquisitions, compensation, and compliance. Educational credentials include a Master's of Science in Taxation from Northern Illinois University and a Bachelor's of Science in Accounting from the University of Illinois Chicago.