Cigna’s $67 billion acquisition of Express Scripts will change the way drug prices get calculated By: MarketWatch March 08, 2018 at 11:02 AM EST The deal marks a major shift in the health-care industry. Read More >> Related Stocks: Aetna AmerisourceBergen Corp Anthem Inc CVS Health Corp Cardinal Health Cigna Corp Express Scripts Holding HEALTHCARE Humana McKesson Corp UnitedHealth Group Walgreens Boots Alliance