Aetna Board Of Directors Authorizes Additional Share Repurchases

HARTFORD, Conn., April 27, 2007 — Aetna Inc. (NYSE: ΑET) today announced that its Board of Directors has authorized the company to repurchase from time to time up to $750 million of its common stock. This authorization is in addition to the approximately $268 million remaining under Aetna’s prior authorizations.

The company intends to continue buying shares in the open market from time to time. At March 31, 2007, Aetna had approximately 512 million shares outstanding.

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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