Mark T. Bertolini Named President Of Aetna Inc.

HARTFORD, Conn., July 24, 2007 — Aetna Chairman and CEO Ronald A. Williams today announced the appointment of Mark T. Bertolini, 51, as president of Aetna (NYSE: ΑET). In this position, Bertolini will continue to be responsible for the management of Aetna’s businesses, reporting directly to Williams. He currently serves as executive vice president and head of Business Operations, a position that he was promoted to earlier in the year.

"I am pleased that Mark Bertolini will take this enhanced role in helping to shape our business strategy and direct our operations as we drive to meet the needs of our customers and differentiate the company in the marketplace," said Williams. "He is a leader with a strong focus on profitable growth, customer service and innovation, and has been an important voice in the discussion of how to transform health care. I am confident that Mark will continue to make important contributions as company President, and look forward to working with him over time as we continue to enhance the value of the company by making a difference in the lives of our members."

"Aetna’s rich history and strong brand will propel us in our efforts to positively impact health care in America," said Bertolini. "Our more than 30,000 employees are working daily to offer innovative solutions to customers that make a difference in the lives of the people we serve. As president, I will work to ensure that Aetna continues to be the company that our members, employers, health care professionals and distribution partners prefer to do business with."

Bertolini joined Aetna in February 2003 as senior vice president of Specialty Products. Since that time, he has had increasing responsibilities assuming the management for Aetna’s Regional Businesses, being named as executive vice president and head of Regional Businesses. He was named head of Business Operations in May 2007. Prior to joining Aetna, he held positions with Cigna and NYLCare, and had been chief executive officer of SelectCare.

Aetna is one of the nation’s leading diversified health care benefits companies, serving approximately 34.9 million people with information and resources to help them make better informed decisions about their health care. Aetna offers a broad range of traditional and consumer-directed health insurance products and related services, including medical, pharmacy, dental, behavioral health, group life, long-term care and disability plans, and medical management capabilities. Our customers include employer groups, individuals, college students, part-time and hourly workers, health plans and government-sponsored plans.

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