Olivia Kirtley was appointed to the Board in May 2003. She served as Chairman from July 2018 to February 2019, previously serving as Lead Independent Director from April 2016 until July 2018. Ms. Kirtley, a certified public accountant, is a business consultant on strategic and corporate governance issues. She is a former chief financial officer and former senior manager at a predecessor to the accounting firm Ernst & Young LLP. From 2014 to 2016, she served as President and Board Chairman of the International Federation of Accountants. She has also served as Chairman of the American Institute of Certified Public Accountants and Chairman of the AICPA Board of Examiners. Ms. Kirtley serves as a director of U.S. Bancorp and ResCare, Inc., and served on the board of Randgold Resources until its merger with Barrick Gold on January 1, 2019.