On September 22, 2017, Castlight Health, Inc. appointed Eric Chan, age 41, the Company's Chief Accounting Officer, to serve as its Principal Accounting Officer, effective immediately. Following Mr. Chan's appointment, Siobhan Nolan Mangini, the Company's Chief Financial Officer, will cease to serve as its Principal Accounting Officer. Mr. Chan joined the Company in August 2017 as its Chief Accounting Officer. Most recently, Mr. Chan was VP, Corporate Controller at SugarCRM, from November 2015 to August 2017.