An insurer that offers a health benefit plan that enters into any risk-sharing arrangement or subcontract agreement shall file a copy of the arrangement with the commissioner and include information about the number of enrollees affected and the nature of the financial risk to be shared between the insurer and entity or provider, including but not limited to the method of compensation. “Risk sharing arrangement” means any agreement that allows an insurer to share the financial risk of providing health care services to enrollees or insureds with another entity or provider where there is a chance of financial loss to the entity or provider as a result of the delivery of a service. A risk sharing arrangement shall not include a reinsurance contract with an accredited or admitted reinsurer.