Aetna Insurance and Mountainside Hospital based in Montclair, N.J., plan to discontinue their in-network contract.

American International Group said it plans to adhere to the original terms of a deal where it would sell its American International Assurance Co. (AIA) unit to Prudential plc for $35.5 billion and not renegotiate a price.

UnitedHealthcare and Continuum Health Partners have reached a multi-year agreement to keep the health system’s four hospitals within the insurer’s network.