Former Aetna CEO Mark Bertolini with Sara Eisen at CNBC Evolve Summit

3:51 PM ET Thu, 20 June 2019

Driven by personal experience, Mark Bertolini set out to change his company's business model and reinvent the employer-employee relationship. In the process, he helped transform a whole industry and demonstrated how a positive culture and a strong focus on employee experience can drive bottom-line success.