Aetna Board Authorizes Additional Share Repurchases

HARTFORD, Conn., April 28, 2006 — Aetna Inc. (NYSE: ΑET) today announced that its Board of Directors has authorized the company to repurchase from time to time up to approximately $800 million of its common stock. This authorization is in addition to the approximately $1.2 billion remaining under Aetna’s prior authorizations, bringing the total authorization to $2 billion.

Aetna had approximately 567 million common shares outstanding as of March 31, 2006.

Aetna is one of the nation’s leading diversified health care benefits companies, serving approximately 28.3 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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