A sign for Aetna Inc., sits atop a building at the company headquarters in Hartford, Conn., in this 2014 photo.
A sign for Aetna Inc., sits atop a building at the company headquarters in Hartford, Conn., in this 2014 photo. Jessica Hill AP
A sign for Aetna Inc., sits atop a building at the company headquarters in Hartford, Conn., in this 2014 photo. Jessica Hill AP