This document is about a report from the U.S. Department of Labor's Employee Benefits Security Administration that provides an abstract of the 2015 Form 5500 annual reports for private sector employer-sponsored group health plans. It covers the diverse universe of group health plans, including their varying benefit structures, funding arrangements, and relationships to insurance. The report analyzes key statistics on the number of plans, participants, assets, liabilities, contributions, and benefits across self-insured, fully-insured, and mixed-insured plan types.