UnitedHealth Group (UNH)

Information About the Notice of Internet Availability of Proxy Materials

This year, instead of mailing a printed copy of our proxy materials, including our Proxy Statement, Summary Annual Report to Shareholders and Annual Report on Form 10-K, as amended, to each shareholder, we have decided to provide access to these materials to our shareholders in a fast and efficient manner via the Internet. This reduces the amount of paper necessary to produce these materials, as well as the costs associated with mailing these materials to all shareholders. Accordingly, on April 23, 2009, we began mailing a Notice of Internet Availability of Proxy Materials (the “Notice”) to some of our shareholders and posted our proxy materials on the website referenced in the Notice (www.unitedhealthgroup.com/proxymaterials). As more fully described in the Notice, shareholders may choose to access our proxy materials on the website referred to in the Notice or may request to receive a printed set of our proxy materials. In addition, the Notice and website provide information regarding how you may request to receive proxy materials in printed form by mail or electronically by e-mail on an ongoing basis.