Aetna Board Of Directors Announces Actions

Authorizes additional share repurchases

Declares annual dividend

HARTFORD, Conn., September 30, 2005 — 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 $260 million remaining under Aetna’s prior authorization.

The company intends to continue buying shares from time to time using available cash, including proceeds from employee stock option exercises. Aetna had approximately 290 million common shares outstanding as of June 30, 2005.

The Board of Directors also declared its regular annual cash dividend of $0.04 per share on the company’s common stock. The dividend is payable on November 30, 2005, to shareholders of record at the close of business on November 16, 2005.

As one of the nation’s leading providers of health care, dental, pharmacy, group life, disability and long-term care benefits, Aetna puts information and helpful resources to work for its approximately 14.435 million medical members, 12.976 million dental members, 9.117 million pharmacy members and 13.662 million group insurance members to help them make better informed decisions about their health care and protect their finances against health-related risks. Aetna provides easy access to cost-effective health care through a nationwide network of more than 684,000 health care professionals, including over 405,000 primary care and specialist doctors and 4,135 hospitals. For more information, please visit (Figures as of June 30, 2005)

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