This document is about the annual report to Congress on self-insured group health plans, as required by the Affordable Care Act. It provides detailed statistics on self-insured and mixed-insured group health plans that filed a Form 5500, including the number of plans, participants, funding arrangements, and financial information. The report also analyzes the financial health of employers that sponsor self-insured and mixed-insured plans using publicly available data. The data is limited to plans required to file Form 5500, which excludes many smaller plans and plans sponsored by government and churches.