Ms. Burns, 61, has been a member of the Board of Directors since November 2003. She has served as the Center Fellow and Strategic Advisor to the Stanford Center on Longevity at Stanford University since August 2012 and serves on its Advisory Council. She served as the Chief Executive Officer of the Retirement Policy Center sponsored by Marsh & McLennan Companies, Inc. from October 2011 to February 2014. From September 2006 to October 2011, Ms. Burns served as Chairman and Chief Executive Officer of Mercer LLC, a global leader for human resources and related financial advice and services. She assumed that role after joining Marsh & McLennan Companies, Inc. in March 2006 as Chief Financial Officer. From May 2004 to January 2006, Ms. Burns served as Chief Financial Officer and Chief Restructuring Officer of Mirant Corporation, where she successfully helped Mirant restructure and emerge from bankruptcy. In 1999, Ms. Burns joined Delta Air Lines, Inc. assuming the role of Chief Financial Officer in 2000 and holding that position through April 2004. She began her career in 1981 at Arthur Andersen LLP and became a partner in 1991. Ms. Burns also currently serves on the boards of directors of Anheuser-Busch InBev SA/NV, Etsy, Inc. and The Goldman Sachs Group, Inc. She previously served as a director of Alexion Pharmaceuticals, Inc., ending in 2018.

Ms. Burns provides to the Board of Directors expertise in corporate finance, accounting and strategy, including experience gained as the chief financial officer of three public companies. Through her experience gained as chief executive officer of Mercer, she brings expertise in global and operational management, including a background in organizational leadership and human resources. Ms. Burns also has experience serving as a public company outside director.