N E W S R E L E A S E

Contacts: Brett Manderfeld John S. Penshorn

(For Immediate Release)

UNITEDHEALTH GROUP TO HOST INVESTOR CONFERENCE

MINNETONKA, MINN. (November 26, 2012) – UnitedHealth Group (NYSE: UNH) will host its annual Investor Conference with analysts and institutional investors in New York City on Tuesday, November 27, 2012, beginning at 8:00 a.m. EST. At the meeting, senior leaders will discuss the Company’s performance and outlook, including reviewing business trends and specific initiatives related to its various business units.

The Company will host an audio webcast of the presentation and management question and answer portions of this meeting and will make conference materials available on its Investors page at www.unitedhealthgroup.com. A replay of the conference will be available on the Company Web site through December 27, 2012.

In conjunction with the meeting, the Company will affirm its previous outlook for 2012 net earnings of
$5.20 to $5.25 per share. Management will discuss its 2013 financial outlook, which includes revenues of
$123 billion to $124 billion and net earnings of $5.25 to $5.50 per share.

About UnitedHealth Group
UnitedHealth Group (NYSE: UNH) is a diversified health and well-being company dedicated to helping people live healthier lives and making health care work better. With headquarters in Minnetonka, Minn., UnitedHealth Group offers a broad spectrum of products and services through two distinct platforms: UnitedHealthcare, which provides health care coverage and benefits services; and Optum, which provides information and technology-enabled health services. Through its businesses, UnitedHealth Group serves more than 75 million people worldwide. For more information, visit UnitedHealth Group at www.unitedhealthgroup.com.

Forward-Looking Statements
The statements, estimates, projections, guidance or outlook contained in this press release include “forward-looking” statements within the meaning of the Private Securities Litigation Reform Act of 1995 (PSLRA). These statements are intended to take advantage of the “safe harbor” provisions of the PSLRA. Generally the words “believe,” “expect,” “intend,” “estimate,” “anticipate,” “plan,” “project,” “should” and similar expressions identify forward-looking statements, which generally are not historical in nature. These statements may contain information about financial prospects, economic conditions and trends and involve risks and uncertainties. We caution that actual results could differ materially from those that management expects, depending on the outcome of certain factors.

Some factors that could cause results to differ materially from the forward-looking statements include: our ability to effectively estimate, price for and manage our medical costs, including the impact of any new coverage requirements; the potential impact that new laws or regulations, or changes in existing laws or regulations, or their enforcement or application could have on our results of operations, financial position and cash flows, including as a result of increases in medical, administrative, technology or other costs or decreases in enrollment resulting from U.S., Brazilian and other jurisdictions’ regulations affecting the health care industry; the impact of any potential assessments for insolvent payers under state guaranty fund laws, including any that could arise out of the potential liquidation of Penn Treaty Network America Insurance Company; the ultimate impact of the Patient Protection and Affordable Care Act, which could materially and adversely affect our results of operations, financial position and cash flows through reduced revenues, increased costs, new taxes and expanded liability, or require changes to the ways in which we conduct business or put us at risk for loss of business; potential reductions in revenue received from Medicare and Medicaid programs; uncertainties regarding changes in Medicare, including potential changes in risk adjustment data validation audit and payment adjustment methodology; failure to comply with patient privacy and data security regulations; regulatory and other risks and uncertainties associated with the pharmacy benefits management industry and our ability to successfully repatriate our pharmacy benefits management business; competitive pressures, which could affect our ability to maintain or increase our market share; the impact of challenges to our public sector contract awards; our ability to execute contracts on competitive terms with physicians, hospitals and other service professionals; our ability to attract, retain and provide support to a network of independent producers (i.e., brokers and agents) and consultants; events that may adversely affect our relationship with AARP; increases in costs and other liabilities associated with increased litigation, government investigations, audits or reviews; the potential impact of adverse economic conditions on our revenues (including decreases in enrollment resulting from increases in the unemployment rate and commercial attrition) and results of operations; the performance of our investment portfolio; possible impairment of the value of our goodwill and intangible assets in connection with dispositions or if estimated future results do not adequately support goodwill and intangible assets recorded for our existing businesses or the businesses that we acquire; increases in health care costs resulting from large-scale medical emergencies; failure to maintain effective and efficient information systems or if our technology products otherwise do not operate as intended; misappropriation of our proprietary technology; our ability to obtain sufficient funds from our regulated subsidiaries or the debt or capital markets to fund our obligations, to maintain our debt to total capital ratio at targeted levels, to maintain our quarterly dividend payment cycle or to continue repurchasing shares of our common stock; failure to complete or receive anticipated benefits of acquisitions and other strategic transactions, including the Amil acquisition; the impact of fluctuations in foreign currency exchange rates on our reported shareholders’ equity and results of operations; potential downgrades in our credit ratings; and failure to achieve targeted operating cost productivity improvements, including savings resulting from technology enhancement and administrative modernization.

This list of important factors is not intended to be exhaustive. We discuss certain of these matters more fully, as well as certain risk factors that may affect our business operations, financial condition and results of operations, in our other periodic and current filings with the SEC, including our annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K. Any or all forward-looking statements we make may turn out to be wrong. They can be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties. By their nature, forward-looking statements are not guarantees of future performance or results and are subject to risks, uncertainties and assumptions that are difficult to predict or quantify. Actual future results may vary materially from expectations expressed in this press release or any of our prior communications. You should not place undue reliance on forward-looking statements, which speak only as of the date they are made. We do not undertake to update or revise any forward-looking statements.

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