A merger of CVS and Aetna would create a health-care behemoth and put huge pressure on standalone players such as Express Scripts Holding Co. and Walgreens Boots Alliance Inc.
Walgreens Boots Alliance Inc. clinched regulatory approval for a deal to buy Rite Aid Corp. stores, a hard-fought victory following two years of failed attempts.
The government argues the Aetna-Humana deal would eliminate competition between the insurers in 364 counties in 21 states and likely force seniors to pay higher premiums for Medicare Advantage.
Acquiring Cigna will give Anthem a way to vie for business against Blue Cross & Blue Shield Association plans around the country, said Morgan Kendrick, Anthems president of national accounts.