Factbox-Consolidation in US health insurance industry
CVS Health announced plans to acquire health insurer Aetna for $69 billion in the largest-ever healthcare merger. The companies said they would save administrative and patient care costs, in part by steering Aetna customers to walk-in clinics in CVS stores for less expensive medical services. October 2017: Anthem announced that it would not renew its pharmacy benefit management relationship with Express Scripts and subsequently entered into a new contract with CVS Health.