Castlight Health, Inc. to Participate in Upcoming Investor Conferences

March 1, 2016

SAN FRANCISCO – March 1, 2016 – Castlight Health, Inc. (NYSE: CSLT), a leading health benefits platform provider, today announced that Vice President, Finance and Business Operations Siobhan Nolan Mangini will present at the Cowen and Company 36th Annual Health Care Conference at the Marriott Copley Place in Boston, Massachusetts and participate in the Sun Trust Healthcare IT Summit at the Canyons Grand Summit Hotel in Park City, Utah.

Castlight Health’s Cowen Health Care Conference presentation is scheduled for Tuesday, March 8, 2016 at 8:00 a.m. Eastern Time and will be webcast live. An archive of the presentation will be available for a limited time and will be accessible at www.castlighthealth.com in the Investor Relations section.

The company’s participation in the Sun Trust Healthcare IT Summit is scheduled for Thursday, March 10, 2016.

About Castlight Health
Our mission is to empower people to make the best choices for their health and to help companies make the most of their health benefits. We offer a health benefits platform that engages employees to make better healthcare decisions and guide them to the right program, care, and provider. The platform also enables benefit leaders to communicate and measure their programs while driving employee engagement with targeted, relevant communications. Castlight has partnered with more than 190 customers, spanning millions of lives, to improve healthcare outcomes, lower costs, and increase benefits satisfaction.

For more information visit www.castlighthealth.com. Follow us on Twitter and LinkedIn and Like us on Facebook.

Investor Contact:

Charles Butler

[email protected]

415-829-1400

Media Contact:

Jim Rivas

[email protected]

415-829-1568

Copyright 2016 Castlight Health, Inc. Castlight Health® is the registered trademark of Castlight Health, Inc. Other company and product names may be trademarks of the respective companies with which they are associated.

Press Information

[email protected]