Health Net Inc., which provides and administers medical benefits to millions of people around the United States, is asking a federal judge in Newark to seal information related to a $215 million class-action settlement of claims that it under-reimbursed out-of-network health-care providers.

The company’s motion, filed Oct. 7 in Wachtel v. Health Net, seeks to prevent disclosure of portions of a special master’s report and some of the exhibits to its own liability insurers, who it is battling in California state court over coverage for the Wachtel litigation.