Mr. Anderson has been President and Chief Executive Officer of Amtrak, an intercity passenger rail service provider and high-speed rail operator, since July 12, 2017. From 2007 until May 2016, Mr. Anderson served as Chief Executive Officer and a Director of Delta Air Lines, Inc., a commercial airline. Upon retiring as Chief Executive Officer of Delta Air Lines, Inc., he became the Executive Chairman of the Board of Directors of Delta Air Lines, Inc. until October 2016. He was Executive Vice President of UnitedHealth Group Incorporated, a diversified health care company, from 2004 until 2006. Mr. Anderson was Chief Executive Officer of Northwest Airlines Corporation from 2001 to 2004.

Mr. Arnold has been Chairman and Chief Executive Officer of Eaton Corporation, a power management company, since June 1, 2016. From September 2015 to May 2016, Mr. Arnold served as President and Chief Operating Officer of Eaton Corporation. Prior to that, Mr. Arnold served as the Vice Chairman and Chief Operating Officer, Industrial Sector, of Eaton Corporation. From 2000 to 2008 he served as Senior Vice President of Eaton Corporation and Group Executive of the Fluid Power Group of Eaton. Prior to joining Eaton, Mr. Arnold was employed in a series of progressively more responsible positions at General Electric Company from 1983 to 2000. Mr. Arnold was appointed to the Board of Directors of Eaton Corporation in 2015. Mr. Arnold is a former Director of Covidien plc.

Mr. Donnelly is Chairman, President and Chief Executive Officer of Textron, Inc., a producer of aircraft, defense and industrial products. Mr. Donnelly joined Textron in June 2008 as Executive Vice President and Chief Operating Officer and was promoted to President and Chief Operating Officer in January 2009. He was appointed to the Board of Directors in October 2009, and became Chief Executive Officer of Textron in December 2009 and Chairman of the Board in September 2010. Previously, Mr. Donnelly was the President and CEO of General Electric Company’s aviation business unit, GE Aviation, a leading maker of commercial and military jet engines and components as well as integrated digital, electric power and mechanical systems for aircraft. Prior to July 2005, Mr. Donnelly held various other management positions since joining General Electric in 1989.

Mr. Hogan is Chairman of nVent Electric plc, a manufacturing company for electrical connection and protection products since May 2018. He was previously the Chief Executive Officer of Pentair plc, an industrial manufacturing company, from 2001 until 2018 and served as Chairman from 2002 until 2018. From December 1999 to December 2000, he was President and Chief Operating Officer of Pentair, from March 1998 to December 1999 he was Executive Vice President and President of Pentair’s Electrical and Electronic Enclosures Group. Prior to joining Pentair, he was President of the Carrier Transicold Division of United Technologies Corporation. Before that, he was with the Pratt & Whitney division of United Technologies, General Electric Company and McKinsey & Company. Mr. Hogan served as Chairman of the board of the Federal Reserve Bank of Minneapolis from December 2013 until January 2016. Mr. Hogan is a former director of Covidien plc and Pentair plc.

Mr. Ishrak has been Chairman and Chief Executive Officer of Medtronic plc since 2011. Prior to joining Medtronic, Mr. Ishrak served as President and Chief Executive Officer of GE Healthcare Systems, a comprehensive provider of medical imaging and diagnostic technology, from 2009 to 2011. Before that, Mr. Ishrak was President and Chief Executive Officer of GE Healthcare Clinical Systems from 2005 to 2008 and President and Chief Executive Officer of GE Healthcare Ultrasound and BMD from 1995 to 2004.

Dr. Jackson has been President of Rensselaer Polytechnic Institute, a technological research university, since 1999. She was Chair of the U.S. Nuclear Regulatory Commission under President Clinton from 1995 to 1999, and Professor of Physics at Rutgers University and consultant to AT&T Bell Laboratories from 1991 to 1995. In 2014, President Barack Obama appointed Dr. Jackson to The President’s Intelligence Advisory Board, where she served until 2017. She is a recipient of the National Medal of Science, a member of the National Academy of Engineering and the American Philosophical Society, and a Fellow of the American Academy of Arts and Sciences, the American Association for the Advancement of Science, the American Physical Society, and the Royal Academy of Engineering (U.K.). She is a life trustee of M.I.T., and a member of the Council on Foreign Relations. Dr. Jackson is a former Director of Marathon Oil Corporation and a former Trustee of The Brookings Institution.

Governor Leavitt has been founder and Chairman of Leavitt Partners, a family of healthcare companies focused on value-based healthcare policy, since 2009. Prior to that he was the United States Secretary of Health and Human Services from 2005 to 2009; Administrator of the Environmental Protection Agency from 2003 to 2005; and Governor of Utah from 1993 to 2003. Governor Leavitt is a former director of Health Equity, Inc.

Mr. Lenehan served as President of Johnson & Johnson, an international pharmaceutical company, from 2002 until 2004, when he retired after 28 years of service to Johnson & Johnson. During those 28 years, Mr. Lenehan also served as Vice Chairman of Johnson & Johnson from 2000 until 2004; Worldwide Chairman of Johnson & Johnson’s Medical Devices and Diagnostics Group from 1999 until he became Vice Chairman of the Board; and Worldwide Chairman, Consumer Pharmaceuticals & Professional Group. Mr. Lenehan has been a financial consultant since 2004, including serving as Senior Advisor of Cerberus Operations and Advisory Company, LLC, a private investment firm. Mr. Lenehan is a former Director of Talecris Biotherapeutics Holding Corp.

Elizabeth Nabel, M.D., has been President of Brigham Health, hospitals and physician organizations operating inpatient and outpatient facilities, clinics, primary care health centers, and diagnostic and treatment technologies, research laboratories, and postgraduate medical and scientific education and training programs, as well as Harvard Medical School’s second largest teaching affiliate. Dr. Nabel has also been a Professor of Medicine at Harvard Medical School since 2010. Prior to that, Dr. Nabel held a variety of roles, including Director, at the National Heart, Lung and Blood Institute at the National Institutes of Health, a federal agency funding research, training, and education programs to promote the prevention and treatment of heart, lung, and blood diseases, from 1999 to 2009. Dr. Nabel is an elected member of the National Academy of Medicine of the National Academy of Sciences.

Ms. O’Leary has been a private venture capital investor in a variety of early stage companies since 1996. She was a member of the Stanford University Board of Trustees from 1996 through 2006, where she chaired the Committee of the Medical Center. Ms. O’Leary is a former director of US Airways Group, Inc. and Calpine Corporation.

Mr. Powell was Chairman of General Mills, Inc., an international producer, marketer and distributor of cereals, snacks and processed foods, from 2008 until December 2017 and was Chief Executive Officer of General Mills, Inc. from 2007 until June 2017. He was President and Chief Operating Officer of General Mills, Inc. from 2006 to 2007, and became a Director of General Mills, Inc. in 2006. He was Executive Vice President and Chief Operating Officer, U.S. Retail from 2005 to 2006; and Executive Vice President of General Mills, Inc. from 2004 to 2005. From 1999 to 2004, Mr. Powell was Chief Executive Officer of Cereal Partners Worldwide, a joint venture of General Mills, Inc. and the Nestle Corporation. Mr. Powell joined General Mills, Inc. in 1979. Mr. Powell is a former director of General Mills, Inc.

Mr. Pozen was Chairman of MFS Investment Management and a Director of MFS Mutual Funds from 2004 to 2010, and Chairman Emeritus of MFS Investment Management from 2010 to 2011. He previously was Secretary of Economic Affairs for the Commonwealth of Massachusetts in 2003 and the John Olin Visiting Professor at Harvard Law School from 2002 to 2003. He also was Vice Chairman of Fidelity Investments from 2000 to 2001 and President of Fidelity Management & Research from 1997 to 2001. From 2007 to 2008, he was the Chairman of the SEC Advisory Committee on Improvements to Financial Reporting; and from January 2008 through June 2015, he was a Senior Lecturer at Harvard Business School. Mr. Pozen currently serves on the Board of Asset Management Company, a fund management subsidiary of The World Bank Group. As of July 2015, he is a senior lecturer at M.I.T. Sloan School of Management. As of October 2015, he is a member of the advisory board of Perella Weinberg Partners.