Mr. Henderson retired as Vice Chairman, Client Service at PricewaterhouseCoopers LLP ( PricewaterhouseCoopers ) in June 2016, a position he held since 2007. He also served as PricewaterhouseCoopers Managing Partner of the Greater Chicago Market from 2003 through 2013. During his career at PricewaterhouseCoopers, Mr. Henderson gained significant experience working with the boards and audit committees of Fortune 500 companies and has managed major client relationships across multiple markets and industry sectors. He is the lead director, chair of the corporate governance committee, and a member of the audit, risk, human capital and compensation, technology and operations, and executive committees of Northern Trust Corporation, a publicly traded financial holding company, where he has served since July 2016, and a director, chair of the audit committee, and member of the finance and executive committees of Illinois Tool Works Inc., a publicly traded global multi-industrial manufacturer of specialized industrial equipment, consumables, and related service businesses, where he has served since August 2016. Mr. Henderson is also a member of the boards of several non-profit organizations. The Board concluded that Mr. Henderson should serve as a director primarily due to his extensive experience in managing and overseeing businesses, his experience working with the boards and audit committees of large public companies, and his experience serving as a director of public companies and non-profit organizations. Specifically, Mr. Henderson brings leadership and operating skills through his former roles with PricewaterhouseCoopers. He has also been a Certified Public Accountant since 1977. Mr. Henderson s background enables him to provide valuable insights to the Board, particularly in strategy, compliance, risk management, and overseeing the Company s finances and cybersecurity practices.