Mark T. Bertolini

Mark T. Bertolini is an American business executive who has been the CEO of Oscar Health, a tech-driven health insurance company located in New York, since 2023. He was the co-CEO of Bridgewater Associates, one of the world's largest hedge funds, and was previously the CEO of Aetna, a Fortune 50 diversified health care benefits company with over $60 billion in 2015 revenue. Bertolini assumed the role of CEO in November 2010 and of chairman in April 2011, until Aetna was sold to CVS in November 2018. He is also the chairman of Verizon since October 2025.