Webcigna officially absorbed one of the largest pharmacy benefit managers in the country on thursday, closing its $67 billion purchase of express scripts. Webthe trend continues, as on march 8, cigna announced its intention to acquire express scripts, another pbm, in a deal reportedly valued at $67 billion. Webthe department of justice is close to approving two landmark mergers, the cvs health/aetna merger and cigna's proposed acquisition of express scripts, according to. Webcounsel for cigna retained cornerstone research in the review of this $67 billion vertical merger by federal and state regulators. The merger involves one of the largest health. Webthe department of justice has given the green light to insurance giant cigna corp. 's planned $67 billion acquisition of pharmacy benefit manager express scripts. Webthe $67 billion merger between a pharmacy benefit manager and one of the largest health insurers in the country will be the first of its kind. Webfederal officials finally approved the merger of cigna (nyse:ci), one of the nation’s biggest health insurers, and pharmacy benefit manager express scripts holding.