On October 19, 2019, the Board of Directors of Castlight Health, Inc. determined that Will Bondurant, age 30, will be promoted to be the Company's Chief Financial Officer, effective November 15, 2019. Concurrently with Mr. Bondurant's appointment, Siobhan Nolan Mangini, the Company's current President and Chief Financial Officer, will cease to serve as its Chief Financial Officer but will remain in the President role. Mr. Bondurant joined the Company in April 2013 and has served in a variety of finance, product and customer-facing roles in that time, including most recently as Vice President of Professional Services since July 2018.

Prior to joining the Company, Mr. Bondurant worked at McKinsey & Company. Mr. Bondurant has a B.A. from University of North Carolina, Chapel Hill. Also on October 19, 2019, the Board of Directors of the Company determined that Helen Kotchoubey, age 46, will serve the Company as its Executive Vice President, Chief Operating Officer, effective October 23, 2019.

Prior to joining the Company, Ms. Kotchoubey served as chief of staff at New-York Presbyterian, Brooklyn Methodist Hospital from February 2017 to August 2018. Prior to that she served in a variety of roles at New York-Presbyterian Hospital from 2006 to January, 2017, including Vice President of IT Strategy. Ms. Kotchoubey has a BA from Amherst College and an MBA from Harvard Business School.