2000 STOCK INCENTIVE PLAN
PERFORMANCE STOCK UNIT TERMS OF AWARD
Performance Period January 1, 2008 through December 31, 2009
Pursuant to its 2000 Stock Incentive Plan (the "Plan"), Aetna Inc. (the "Company") hereby grants Performance
Stock Units on the terms and conditions hereinafter set forth. The number of Performance Stock Units awarded is
included in the website of the designated broker, currently UBS Financial Services, Inc., and in the Notice of the
Performance Stock Unit Grant Acknowledgement and Acceptance Form. All capitalized terms used herein which
are not otherwise defined herein shall have the meaning specified in the Plan.
(c) "Change in Control" means the happening of any of the following:
“Affiliate" means an entity at least a majority of the total voting power of the then-outstanding voting
securities of which is held, directly or indirectly, by the Company and/or one or more other Affiliates.
"Board" means the Board of Directors of Aetna Inc.
(i) When any "person" as defined in Section 3(a)(9) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act") and as used in Sections 13(d) and 14(d) thereof, including a "group"
as defined in Section 13(d) of the Exchange Act but excluding the Company and any Subsidiary
thereof and any employee benefit plan sponsored or maintained by the Company or any Subsidiary
(including any trustee of such plan acting as trustee), directly or indirectly, becomes the "beneficial
owner" (as defined in Rule 13d-3 under the Exchange Act, as amended from time to time), of
securities of the Company representing 20 percent or more of the combined voting power of the
Company's then outstanding securities;
(ii) When, during any period of 24 consecutive months, the individuals who, at the beginning of such
period, constitute the Board (the "Incumbent Directors") cease for any reason other than death to
constitute at least