UnitedHealth Group (UNH)

ACQUISITIONS

Unison Health Plans. On May 30, 2008, we acquired all of the outstanding shares of Unison Health Plans (Unison) for approximately $930 million in cash. Unison provides government-sponsored health plan coverage to people in Pennsylvania, Ohio, Tennessee, Delaware, South Carolina and Washington, D.C. through a network of independent health care professionals. This acquisition strengthened our resources and capabilities in these areas. The results of operations and financial condition of Unison have been included in our consolidated results and the results of our Health Care Services reporting segment since the acquisition date.

Sierra Health Services, Inc. On February 25, 2008, we acquired all of the outstanding shares of Sierra Health Services, Inc. (Sierra), a diversified health care services company based in Las Vegas, Nevada, for approximately $2.6 billion in cash, representing a price of $43.50 per share of Sierra common stock. This acquisition strengthened our position in the southwest region of the United States. The U.S. Department of Justice approved the acquisition conditioned upon the divestiture of our individual SecureHorizons Medicare Advantage HMO plans in Clark and Nye Counties, Nevada, which represented approximately 30,000 members. The divestiture was completed on April 30, 2008. We received proceeds of $185 million for this transaction which were recorded as a reduction to Operating Costs. Group SecureHorizons Medicare Advantage plans offered through commercial

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contracts were excluded from the divestiture. Also, we retained Sierra’s Medicare Advantage HMO plans in Nevada. The results of operations and financial condition of Sierra have been included in our consolidated results and the results of the Health Care Services, OptumHealth and Prescription Solutions reporting segments since the acquisition date.

Fiserv Health, Inc. On January 10, 2008, we acquired all of the outstanding shares of Fiserv Health, Inc. (Fiserv Health), a subsidiary of Fiserv, Inc., for approximately $740 million in cash. Fiserv Health is a leading administrator of medical benefits and also provides care facilitation services, specialty health solutions and pharmacy benefit management (PBM) services. This transaction allows us to expand the capacity of our existing benefits administration businesses and enables existing and new customers to leverage our full range of assets, including ancillary services, our national network and technology tools.

The results of operations and financial condition of Fiserv Health have been included in our consolidated results and the results of the Health Care Services, OptumHealth, Ingenix and Prescription Solutions reporting segments since the acquisition date.

5.    Acquisitions

See Note 3 of Notes to the Consolidated Financial Statements for a description of acquisitions.

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Acquisitions

Unison Health Plans. On May 30, 2008, we acquired all of the outstanding shares of Unison Health Plans (Unison) for approximately $930 million in cash. Unison provides government-sponsored health plan coverage to people in Pennsylvania, Ohio, Tennessee, Delaware, South Carolina and Washington, D.C. through a network of independent health care professionals. This acquisition strengthened our resources and capabilities in these areas. The results of operations and financial condition of Unison have been included in our consolidated results and the results of our Health Care Services segment since the acquisition date.

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Sierra Health Services, Inc. On February 25, 2008, we acquired all of the outstanding shares of Sierra Health Services, Inc. (Sierra), a diversified health care services company based in Las Vegas, Nevada, for approximately $2.6 billion in cash, representing a price of $43.50 per share of Sierra common stock. This acquisition strengthened our position in the rapidly growing southwest region of the United States. The U.S. Department of Justice approved the acquisition conditioned upon the divestiture of our individual SecureHorizons Medicare Advantage HMO plans in Clark and Nye Counties, Nevada, which represented approximately 28,000 members. The divestiture was completed on April 30, 2008. We received proceeds of $185 million for this transaction which were recorded as a reduction to Operating Costs. Group SecureHorizons Medicare Advantage plans offered through commercial contracts were excluded from the divestiture. Also, we retained Sierra’s Medicare Advantage HMO plans in Nevada. The results of operations and financial condition of Sierra have been included in our consolidated results and the results of the Health Care Services, OptumHealth and Prescription Solutions segments since the acquisition date.

Fiserv Health, Inc. On January 10, 2008, we acquired all of the outstanding shares of Fiserv Health, Inc. (Fiserv Health), a subsidiary of Fiserv, Inc., for approximately $740 million in cash. Fiserv Health is a leading administrator of medical benefits and also provides care facilitation services, specialty health solutions and pharmacy benefit management (PBM) services. This transaction allows us to expand the capacity of our existing benefits administration businesses and enables existing and new customers to leverage our full range of assets, including ancillary services, our national network and technology tools. The results of operations and financial condition of Fiserv Health have been included in our consolidated results and the results of the Health Care Services, OptumHealth, Ingenix and Prescription Solutions segments since the acquisition date.

Acquisitions

Unison Health Plans. On May 30, 2008, we acquired all of the outstanding shares of Unison Health Plans (Unison) for approximately $930 million in cash. Unison provides government-sponsored health plan coverage to people in Pennsylvania, Ohio, Tennessee, Delaware, South Carolina and Washington, D.C. through a network of

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independent health care professionals. This acquisition strengthened our resources and capabilities in these areas. The results of operations and financial condition of Unison have been included in our consolidated results and the results of our Health Care Services segment since the acquisition date.

Sierra Health Services, Inc. On February 25, 2008, we acquired all of the outstanding shares of Sierra Health Services, Inc. (Sierra), a diversified health care services company based in Las Vegas, Nevada, for approximately $2.6 billion in cash, representing a price of $43.50 per share of Sierra common stock. This acquisition strengthened our position in the rapidly growing southwest region of the United States. The U.S. Department of Justice approved the acquisition conditioned upon the divestiture of our individual SecureHorizons Medicare Advantage HMO plans in Clark and Nye Counties, Nevada, which represented approximately 28,000 members. The divestiture was completed on April 30, 2008. We received proceeds of $185 million for this transaction which were recorded as a reduction to Operating Costs. Group SecureHorizons Medicare Advantage plans offered through commercial contracts were excluded from the divestiture. Also, we retained Sierra’s Medicare Advantage HMO plans in Nevada. The results of operations and financial condition of Sierra have been included in our consolidated results and the results of the Health Care Services, OptumHealth and Prescription Solutions segments since the acquisition date.

Fiserv Health, Inc. On January 10, 2008, we acquired all of the outstanding shares of Fiserv Health, Inc. (Fiserv Health), a subsidiary of Fiserv, Inc., for approximately $740 million in cash. Fiserv Health is a leading administrator of medical benefits and also provides care facilitation services, specialty health solutions and pharmacy benefit management (PBM) services. This transaction allows us to expand the capacity of our existing benefits administration businesses and enables existing and new customers to leverage our full range of assets, including ancillary services, our national network and technology tools. The results of operations and financial condition of Fiserv Health have been included in our consolidated results and the results of the Health Care Services, OptumHealth, Ingenix and Prescription Solutions segments since the acquisition date.

Acquisitions

Sierra Health Services, Inc. On February 25, 2008, we acquired all of the outstanding shares of Sierra Health Services, Inc. (Sierra), a diversified health care services company based in Las Vegas, Nevada, for approximately $2.6 billion in cash, representing a price of $43.50 per share of Sierra common stock. This acquisition strengthened our position in the rapidly growing southwest region of the United States. The U.S. Department of Justice approved the acquisition conditioned upon the divestiture of our individual SecureHorizons Medicare Advantage HMO plans in Clark and Nye Counties, Nevada, which represented approximately 27,000 members. The divestiture was completed on April 30, 2008. Group SecureHorizons Medicare Advantage plans offered through commercial contracts were excluded from the divestiture. Also, we retained Sierra’s Medicare Advantage HMO plans in Nevada. The results of operations and financial condition of Sierra have been included in our consolidated results and the results of the Health Care Services and OptumHealth segments since the acquisition date.

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Fiserv Health, Inc. On January 10, 2008, we acquired all of the outstanding shares of Fiserv Health, Inc. (Fiserv Health), a subsidiary of Fiserv, Inc., for approximately $740 million in cash. Fiserv Health is a leading administrator of medical benefits and also provides care facilitation services, specialty health solutions and pharmacy benefit management (PBM) services. This transaction allows us to expand the capacity of our existing benefits administration businesses and enables existing and new customers to leverage our full range of assets, including ancillary services, our national network and technology tools. The results of operations and financial condition of Fiserv Health have been included in our consolidated results and the results of the Health Care Services, OptumHealth, Ingenix and Prescription Solutions segments since the acquisition date.

Unison Health Plans. On January 8, 2008, we announced that AmeriChoice had signed a definitive agreement to acquire Unison Health Plans (Unison). Unison provides government-sponsored health plan coverage to approximately 370,000 people in Pennsylvania, Ohio, Tennessee, Delaware and South Carolina through a network of independent health care professionals. This all-cash transaction is expected to close by the end of the second quarter of 2008, subject to required regulatory approvals and other customary conditions.

3.    Acquisitions

On March 12, 2007, we announced that we had signed a definitive merger agreement under which the Company will acquire all of the outstanding shares of Sierra Health Services, Inc. (Sierra), a diversified health care services

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UNITEDHEALTH GROUP

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

company based in Las Vegas, Nevada, for approximately $2.6 billion in cash, representing a price of $43.50 per share of Sierra common stock. The transaction has been approved by the Boards of Directors of both companies, Sierra’s shareholders and all required state regulatory agencies, and is expected to close prior to the end of 2007, subject to federal regulatory approvals and other customary conditions. This acquisition is intended to strengthen our position in the rapidly growing southwest region and broaden our senior health capabilities.

On December 1, 2006, our Health Care Services business segment acquired the Student Insurance Division (Student Resources) of The MEGA Life and Health Insurance Company through an asset purchase agreement. Student Resources primarily serves college and university students. This acquisition strengthened our position in this market and provided expanded distribution opportunities for our other UnitedHealth Group businesses. Under the terms of the asset purchase agreement, we issued a 10-year, $95 million promissory note bearing a 5.4% fixed interest rate and paid approximately $1 million in cash. The results of operations and financial condition of Student Resources have been included in our Consolidated Financial Statements since the acquisition date. The pro forma effects of the Student Resources acquisition on our Consolidated Financial Statements were not material.

On February 24, 2006, the Company acquired John Deere Health Care, Inc. (JDHC). The operations of JDHC reside primarily within our Health Care Services and Uniprise segments. We paid approximately $515 million in cash, including transaction costs, in exchange for all of the outstanding equity of JDHC. The purchase price and costs associated with the acquisition exceeded the estimated fair value of the net tangible assets acquired by approximately $376 million. Based on management’s consideration of fair value, which included the completion of a valuation analysis, we have allocated the excess purchase price over the fair value of the net tangible assets acquired to finite-lived intangible assets of $53 million and goodwill of $323 million. The finite-lived intangible assets consist primarily of member lists and physician and hospital networks, with estimated fair values of $51 million and $2 million, respectively, and an estimated weighted-average useful life of approximately 11 years. The acquired goodwill is deductible for income tax purposes. The results of operations and financial condition of JDHC have been included in our Consolidated Financial Statements since the acquisition date. The pro forma effects of the JDHC acquisition on our Consolidated Financial Statements were not material. Acquired net tangible assets and liabilities are categorized as follows: cash and cash equivalents of $46 million; investments of $197 million; accounts receivable and other current assets of $60 million; property, equipment, capitalized software and other assets of $29 million; medical payables of $131 million and other liabilities of $62 million. JDHC has been renamed UnitedHealthcare Services Company of the River Valley, Inc.

We record liabilities related to integration activities in connection with business combinations when integration plans are finalized and approved by management within one year of the acquisition date in accordance with the requirements of the Emerging Issues Task Force (EITF) Issue No. 95-3, “Recognition of Liabilities in Connection with a Purchase Business Combination.” Liabilities recorded relate to activities that have no future economic benefit to the Company and represent contractual obligations. These liabilities result in an increase to goodwill acquired. At each reporting date, we evaluate our liabilities associated with integration activities and make adjustments as appropriate. Integration activities relate primarily to severance costs for certain workforce reductions largely in the Health Care Services segment, costs of terminated or vacated leased facilities and other contract termination costs.

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UNITEDHEALTH GROUP

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The following table illustrates the changes in employee termination benefit costs and other integration costs related to the December 20, 2005 acquisition of PacifiCare Health Systems, Inc. (PacifiCare) for the nine months ended September 30, 2007 (in millions):

For the nine months ended September 30, 2007, aggregate consideration paid, net of cash assumed and other effects, for smaller acquisitions was $205 million. These acquisitions were not material to our Condensed Consolidated Financial Statements.

3.    Acquisitions

On March 12, 2007, we announced that we had signed a definitive merger agreement under which the Company will acquire all of the outstanding shares of Sierra Health Services, Inc., a diversified health care services

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UNITEDHEALTH GROUP

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

company based in Las Vegas, Nevada, for approximately $2.6 billion in cash, representing a price of $43.50 per share of Sierra common stock. The transaction has been approved by the Boards of Directors of both companies and Sierra’s shareholders and it is expected to close prior to the end of 2007, subject to state and federal regulatory approvals and other customary conditions. This acquisition is intended to strengthen our position in the rapidly growing southwest region and broaden our senior health capabilities.

On December 1, 2006, our Health Care Services business segment acquired the Student Insurance Division (Student Resources) of The MEGA Life and Health Insurance Company through an asset purchase agreement. Student Resources primarily serves college and university students. This acquisition strengthened our position in this market and provided expanded distribution opportunities for our other UnitedHealth Group businesses. Under the terms of the asset purchase agreement, we issued a 10-year, $95 million promissory note bearing a 5.4% fixed interest rate and paid approximately $1 million in cash. The results of operations and financial condition of Student Resources have been included in our Consolidated Financial Statements since the acquisition date. The pro forma effects of the Student Resources acquisition on our Consolidated Financial Statements were not material.

On February 24, 2006, the Company acquired John Deere Health Care, Inc. (JDHC). The operations of JDHC reside primarily within our Health Care Services and Uniprise segments. We paid approximately $515 million in cash, including transaction costs, in exchange for all of the outstanding equity of JDHC. The purchase price and costs associated with the acquisition exceeded the estimated fair value of the net tangible assets acquired by approximately $376 million. Based on management’s consideration of fair value, which included the completion of a valuation analysis, we have allocated the excess purchase price over the fair value of the net tangible assets acquired to finite-lived intangible assets of $53 million and goodwill of $323 million. The finite-lived intangible assets consist primarily of member lists and physician and hospital networks, with estimated fair values of $51 million and $2 million, respectively, and an estimated weighted-average useful life of approximately 11 years. The acquired goodwill is deductible for income tax purposes. The results of operations and financial condition of JDHC have been included in our Consolidated Financial Statements since the acquisition date. The pro forma effects of the JDHC acquisition on our Consolidated Financial Statements were not material. Acquired net tangible assets and liabilities are categorized as follows: cash and cash equivalents of $46 million; investments of $197 million; accounts receivable and other current assets of $60 million; property, equipment, capitalized software and other assets of $29 million; medical payables of $131 million and other liabilities of $62 million. JDHC has been renamed UnitedHealthcare Services Company of the River Valley, Inc.

We record liabilities related to integration activities in connection with business combinations when integration plans are finalized and approved by management within one year of the acquisition date in accordance with the requirements of the Emerging Issues Task Force (EITF) Issue No. 95-3, “Recognition of Liabilities in Connection with a Purchase Business Combination.” Liabilities recorded relate to activities that have no future economic benefit to the Company and represent contractual obligations. These liabilities result in an increase to goodwill acquired. At each reporting date, we evaluate our liabilities associated with integration activities and make adjustments as appropriate. Integration activities relate primarily to severance costs for certain workforce reductions largely in the Health Care Services segment, costs of terminated or vacated leased facilities and other contract termination costs.

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UNITEDHEALTH GROUP

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The following table illustrates the changes in employee termination benefit costs and other integration costs related to the December 20, 2005 acquisition of PacifiCare Health Systems, Inc. (PacifiCare) for the six-month period ended June 30, 2007 (in millions):

As of June 30, 2007, aggregate consideration paid, net of cash assumed, for smaller acquisitions was $143 million. These acquisitions were not material to our Condensed Consolidated Financial Statements.

3.    Acquisitions

On March 12, 2007, we announced that we had signed a definitive merger agreement under which the Company will acquire all of the outstanding shares of Sierra Health Services, Inc., a diversified health care services company based in Las Vegas, for approximately $2.6 billion in cash, representing a price of $43.50 per acquired share of common stock. The transaction, which has been approved by the Boards of Directors of both companies and is expected to close prior to the end of 2007, is subject to state and federal regulatory approvals, including Nevada, California and Texas, approval by Sierra’s stockholders, and other customary conditions. This acquisition would strengthen our position in the rapidly growing southwest region and broaden our senior health capabilities.

On December 1, 2006, our Health Care Services business segment acquired the Student Insurance Division (Student Resources) of The MEGA Life and Health Insurance Company through an asset purchase agreement.

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UNITEDHEALTH GROUP

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Student Resources primarily serves college and university students. This acquisition strengthened our position in this market and provided expanded distribution opportunities for our other UnitedHealth Group businesses. In exchange and under the terms of the asset purchase agreement, we issued a 10-year, $95 million promissory note bearing a 5.4% fixed interest rate and paid approximately $1 million in cash. The results of operations and financial condition of Student Resources have been included in our Consolidated Financial Statements since the acquisition date. The pro forma effects of the Student Resources acquisition on our Consolidated Financial Statements were not material.

On February 24, 2006, the Company acquired John Deere Health Care, Inc. (JDHC). JDHC serves employers primarily in Iowa, central and western Illinois, eastern Tennessee and southwestern Virginia. This acquisition strengthened our resources and capabilities in these areas. The operations of JDHC reside primarily within our Health Care Services and Uniprise segments. We paid approximately $515 million in cash, including transaction costs, in exchange for all of the outstanding equity of JDHC. The purchase price and costs associated with the acquisition exceeded the estimated fair value of the net tangible assets acquired by approximately $376 million. Based on management’s consideration of fair value, which included the completion of a valuation analysis, we have allocated the excess purchase price over the fair value of the net tangible assets acquired to finite-lived intangible assets of $53 million and goodwill of $323 million. The finite-lived intangible assets consist primarily of member lists and physician and hospital networks, with estimated fair values of $51 million and $2 million, respectively, and an estimated weighted-average useful life of approximately 11 years. The acquired goodwill is deductible for income tax purposes. The results of operations and financial condition of JDHC have been included in our consolidated financial statements since the acquisition date. The pro forma effects of the JDHC acquisition on our consolidated financial statements were not material. Acquired net tangible assets and liabilities are categorized as follows: cash and cash equivalents of $46 million; investments of $197 million; accounts receivable and other current assets of $60 million; property, equipment, capitalized software and other assets of $29 million; medical payables of $131 million and other liabilities of $62 million. JDHC has been renamed UnitedHealthcare Services Company of the River Valley, Inc.

On December 20, 2005, the Company acquired PacifiCare Health Systems, Inc. (PacifiCare). PacifiCare provides health care and benefit services to individuals and employers, principally in markets in the western United States. This merger significantly strengthened our resources by enhancing our capabilities on the Pacific Coast and in other western states and broadening the scope of our product offerings for a host of specialized services. The operations of PacifiCare reside primarily within our Health Care Services and Specialized Care Services segments.

We record liabilities related to integration activities in connection with business combinations when integration plans are finalized and approved by management within one year of the acquisition date in accordance with the requirements of the Emerging Issues Task Force (EITF) Issue No. 95-3, “Recognition of Liabilities in Connection with a Purchase Business Combination.” Liabilities recorded relate to activities that have no future economic benefit to the Company and represent contractual obligations. These liabilities result in an increase to goodwill acquired. At each reporting date, we evaluate our liabilities associated with integration activities and make adjustments as appropriate. Integration activities relate primarily to severance costs for certain workforce reductions largely in the Health Care Services segment, costs of terminated or vacated leased facilities and other contract termination costs.

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UNITEDHEALTH GROUP

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The following table illustrates the changes in employee termination benefit costs and other integration costs related to the PacifiCare acquisition, for the three-month period ended March 31, 2007 (in millions):