Exhibit 99.2

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

The unaudited pro forma condensed combined statement of income for the year ended December 31, 2017 combines the historical consolidated statements of income of CVS Health Corporation (“CVS Health”) and Aetna Inc. (“Aetna”), giving effect to the merger (as defined below) as if it had occurred on January 1, 2017, the first day of the fiscal year ended December 31, 2017. The unaudited pro forma condensed combined balance sheet as of December 31, 2017, combines the historical consolidated balance sheets of CVS Health and Aetna, giving effect to the merger as if it had occurred on December 31, 2017. The historical consolidated financial information has been adjusted in the unaudited pro forma condensed combined financial statements to give effect to pro forma events that are (i) directly attributable to the merger, (ii) factually supportable, and (iii) with respect to the statement of income, expected to have a continuing impact on the combined company’s results. The unaudited pro forma condensed combined financial statements should be read in conjunction with the accompanying notes to the unaudited pro forma condensed combined financial statements. In addition, the unaudited pro forma condensed combined financial information was based on, and should be read in conjunction with, the following historical consolidated financial statements and accompanying notes:

The unaudited pro forma condensed combined financial information has been prepared by CVS Health using the acquisition method of accounting in accordance with U.S. generally accepted accounting principles. CVS Health has been treated as the acquirer in the merger for accounting purposes. The acquisition accounting is dependent upon certain valuation and other studies that have yet to commence or progress to a stage where there is sufficient information for a definitive measurement. The merger has not yet received the necessary approvals from governmental authorities. Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and the rules and regulations thereunder (the “HSR Act”) and other relevant laws and regulations, before completion of the merger, there are significant limitations regarding what CVS Health can learn about Aetna. The assets and liabilities of Aetna have been measured based on various preliminary estimates using assumptions that CVS Health believes are reasonable based on information that is currently available to it. Differences between these preliminary estimates and the final acquisition accounting will occur, and those differences could have a material impact on the accompanying unaudited pro forma condensed combined financial statements and the combined company’s future results of operations and financial position. The pro forma adjustments are preliminary and have been made solely for the purpose of providing unaudited pro forma condensed combined financial statements prepared in accordance with the rules and regulations of the SEC.

CVS Health intends to commence the necessary valuation and other studies required to complete the acquisition accounting promptly upon completion of the merger and will finalize the acquisition accounting as soon as practicable within the required measurement period, but in no event later than one year following completion of the merger.

The unaudited pro forma condensed combined financial information has been presented for informational purposes only. The unaudited pro forma condensed combined financial information does not purport to represent the actual results of operations that CVS Health and Aetna would have achieved had the companies been combined during the periods presented in the unaudited pro forma condensed combined financial statements and is not intended to project the future results of operations that the combined company may achieve after the merger. The unaudited pro forma condensed combined financial information does not reflect any potential divestitures that may occur prior to, or subsequent to, completion of the merger or cost savings that may be realized as a result of the merger and also does not reflect any restructuring or integration-related costs to achieve those potential cost savings.

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Unaudited Pro Forma Condensed Combined Statement of Income for the Year Ended December 31, 2017

See the accompanying notes to the unaudited pro forma condensed combined financial statements, which are an integral part of these statements. The pro forma adjustments shown above are explained in Note 6. Income Statement Pro Forma Adjustments.

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Unaudited Pro Forma Condensed Combined Balance Sheet as of December 31, 2017

See the accompanying notes to the unaudited pro forma condensed combined financial statements, which are an integral part of these statements. The pro forma adjustments shown above are explained in Note 7. Balance Sheet Pro Forma Adjustments.

On December 3, 2017, CVS Health, a wholly-owned subsidiary of CVS Health and Aetna entered into the merger agreement, pursuant to which, subject to the terms and conditions set forth in the merger agreement, Aetna will become a wholly-owned subsidiary of CVS Health (the “merger”). Upon completion of the merger, each Aetna common share issued and outstanding immediately prior to the effective time of the merger will be converted into the right to receive $145.00 in cash, without interest thereon (the “cash consideration”), and 0.8378 of a share of CVS Health common stock (the “share consideration,” which, together with the cash consideration, is collectively referred to as the “merger consideration”).

As of completion of the merger, each vested Aetna stock appreciation right representing the right to receive a payment in Aetna common shares, including those Aetna stock appreciation rights that vest by their terms as of

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completion of the merger (collectively, the “Aetna stock appreciation rights”), will be cancelled and converted into the right to receive a cash amount (without interest) equal to the product of (a) the excess, if any, of (i) the sum of $145.00 plus the value equal to the product of the average of the volume weighted averages of the trading prices for shares of CVS Health common stock on the New York Stock Exchange (the “NYSE”) on each of the five consecutive trading days ending on the trading day that is two trading days prior to completion of the merger (the “CVS Health closing price”), multiplied by the ratio of 0.8378 of a share of CVS Health common stock for each Aetna common share (the “exchange ratio”) (the sum of such amounts is referred as the “equity award cash consideration”) over (ii) the applicable per share exercise price of such Aetna stock appreciation right multiplied by (b) the total number of Aetna common shares subject to such Aetna stock appreciation right. Each outstanding vested Aetna stock appreciation right (including those Aetna stock appreciation rights that vest by their terms as of completion of the merger) with a per share exercise price greater than or equal to the equity award cash consideration will be cancelled for no consideration.

As of completion of the merger, each Aetna stock appreciation right that is not vested as of completion of the merger or that is granted after the date of the merger agreement (to the extent permitted under the merger agreement), will be assumed by CVS Health and will become a stock appreciation right (an “assumed stock appreciation right”), representing the right to receive a payment in shares of CVS Health common stock on the same terms and conditions, except that (i) the number of shares of CVS Health common stock subject to the assumed stock appreciation right will equal the product of (A) the number of Aetna common shares that were subject to such Aetna stock appreciation right immediately prior to completion of the merger multiplied by (B) the sum of (x) the exchange ratio plus (y) the quotient of $145.00, divided by the CVS Health closing price (the sum of such amounts is referred to as the “equity award exchange ratio”), (with such product rounded down to the nearest whole share of CVS Health common stock) and (ii) the per share exercise price will equal the exercise price per share of the Aetna stock appreciation right immediately prior to completion of the merger divided by the equity award exchange ratio (rounded up to the nearest whole cent).

Immediately prior to completion of the merger, each outstanding Aetna restricted stock unit (an “Aetna RSU”) and each outstanding Aetna performance stock unit (an “Aetna PSU”) that provides for accelerated vesting upon completion of the merger will vest and will be converted into the right to receive, with respect to each Aetna common share underlying the Aetna RSU or Aetna PSU, the merger consideration, less applicable tax withholdings.

As of completion of the merger, each Aetna RSU or Aetna PSU that is not converted into a right to receive the merger consideration, or that is granted after the date of the merger agreement (to the extent permitted under the merger agreement), will be assumed by CVS Health and will be converted into a time-based vesting CVS Health RSU award corresponding to the merger consideration.

Completion of the merger is subject to the approval of and adoption of the merger agreement by Aetna shareholders, the approval of the stock issuance by CVS Health stockholders, termination or expiration of the waiting period under the HSR Act, the required governmental authorizations having been obtained and being in full force and effect and certain other conditions to completion of the merger. As of the date of this Current Report on Form 8-K, and subject to the satisfaction or, to the extent permitted by law, waiver of the conditions described in the preceding sentence, CVS Health and Aetna expect the merger to be completed in the second half of 2018.

For more information on the terms of the merger agreement, please see CVS Health’s Current Report on Form 8-K filed on December 5, 2017.

The unaudited pro forma condensed combined financial statements were prepared using the acquisition method of accounting and are based on the historical consolidated financial statements of CVS Health and Aetna.

The acquisition method of accounting is based on Accounting Standards Codification (“ASC”) 805, Business Combinations, and uses the fair value concepts defined in ASC 820, Fair Value Measurement.

ASC 805 requires, among other things, that most assets acquired and liabilities assumed be recognized at their fair values as of the acquisition date. In addition, ASC 805 requires that the consideration transferred be measured at

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the date the merger is completed at the then-current market price. This requirement will likely result in a per share equity component that is different from the amount assumed in these unaudited pro forma condensed combined financial statements, since the market price of the shares of CVS Health common stock at the date the merger is completed is likely to be different than the $71.90 market price that was used in the preparation of the unaudited pro forma condensed combined financial statements. The market price of $71.90 was based upon the closing price of shares of CVS Health common stock on the NYSE on February 16, 2018.

ASC 820 defines the term “fair value,” sets forth the valuation requirements for any asset or liability measured at fair value, expands related disclosure requirements and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measures. Fair value is defined in ASC 820 as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.” This is an exit price concept for the valuation of the asset or liability. In addition, market participants are assumed to be buyers and sellers in the principal (or the most advantageous) market for the asset or liability. Fair value measurements for an asset assume the highest and best use by these market participants. As a result of these standards, CVS Health may be required to record the fair value of assets which are not intended to be used or sold and/or to value assets at fair value measures that do not reflect CVS Health’s intended use of those assets. Many of these fair value measurements can be highly subjective, and it is possible that other professionals, applying reasonable judgment to the same facts and circumstances, could develop and support a range of alternative estimated amounts.

Under the acquisition method of accounting, the assets acquired and liabilities assumed will be recorded, as of completion of the merger, primarily at their respective fair values and added to those of CVS Health. Financial statements and reported results of operations of CVS Health issued after completion of the merger will reflect these values, but will not be retroactively restated to reflect the historical financial position or results of operations of Aetna.

Under ASC 805, acquisition-related transaction costs (e.g., advisory, legal and other professional fees) are not included as a component of consideration transferred but are accounted for as expenses in the periods in which such costs are incurred. Acquisition-related transaction costs expected to be incurred by CVS Health include estimated fees related to a bridge financing commitment and agreement. Total acquisition-related transaction costs expected to be incurred by CVS Health and Aetna are estimated to be approximately $408 million and $165 million, respectively, of which $90 million and $38 million, respectively, were incurred through December 31, 2017.

The unaudited pro forma condensed combined balance sheet as of December 31, 2017 is required to include adjustments which give effect to events that are directly attributable to the merger regardless of whether they are expected to have a continuing impact on the combined results or are non-recurring. Therefore, acquisition-related transaction costs expected to be incurred by CVS Health and Aetna subsequent to December 31, 2017 of approximately $318 million and $127 million, respectively, are reflected as pro forma adjustments to the unaudited pro forma condensed combined balance sheet as of December 31, 2017, with the after-tax impact presented as an increase to accrued expenses and other current liabilities and a decrease to other current assets and retained earnings.

The unaudited pro forma condensed combined financial statements do not reflect any potential divestitures that may occur prior to, or subsequent to, completion of the merger, or the projected realization of cost savings following completion of the merger. These cost savings opportunities are from administrative cost savings as well as reduced health care costs due to medical management. Although CVS Health projects that cost savings will result from the merger, there can be no assurance that these cost savings will be achieved. The unaudited pro forma condensed combined financial statements do not reflect any projected pre-tax restructuring and integration-related costs associated with the projected annual cost savings. The annual cost savings are projected to be approximately $750 million in the second full year following completion of the merger. The restructuring and integration-related costs will be expensed in the appropriate accounting periods after completion of the merger.

On December 22, 2017, the President signed into law the Tax Cuts and Jobs Act (the “TCJA”). Among numerous changes to existing tax laws, the TCJA permanently reduced the federal corporate income tax rate from 35% to 21% effective on January 1, 2018. The effects on deferred income tax balances of changes in tax rates are required to be taken into consideration in the period in which the changes are enacted, regardless of when they are effective. Consequently, the income statement adjustments to these unaudited pro forma condensed combined financial statements assume a 39% effective income tax rate and the balance sheet adjustments to these unaudited pro forma condensed combined financial statements assume a new lower effective income tax rate of 26%.

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At completion of the merger, CVS Health will review Aetna’s accounting policies. As a result of that review, CVS Health may identify differences between the accounting policies of the two companies that, when conformed, could have a material impact on the combined financial statements. With the exception of one accounting policy related to recently issued accounting guidance that CVS Health early adopted in the first quarter of 2017 (see Note 6(l)), CVS Health is not aware of any differences that would have a material impact on the combined financial statements, and therefore, the unaudited pro forma condensed combined financial statements assume there are no other differences in accounting policies other than the one described in Note 6(l).

The following is a preliminary estimate of consideration expected to be transferred to effect the acquisition of Aetna:

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The following is a preliminary estimate of the assets to be acquired and the liabilities to be assumed by CVS Health in the merger, reconciled to the estimate of total consideration expected to be transferred:

The fair value of identifiable intangible assets is determined primarily using variations of the “income approach,” which is based on the present value of the future after-tax cash flows attributable to each

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Selling, general and administrative expenses is adjusted, as follows:

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The following table summarizes the computation of the unaudited pro forma combined weighted average basic and diluted shares outstanding:

Note: Certain amounts may reflect rounding adjustments.

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The unaudited pro forma condensed combined financial statements do not present a combined dividend per share amount. On each of February 2, 2017, May 1, 2017, August 3, 2017, November 3, 2017 and February 2, 2018, CVS Health paid a dividend of $0.50 per share of CVS Health common stock. On January 27, 2017, Aetna paid a dividend of $0.25 per Aetna common share. On each of April 28, 2017, July 28, 2017, October 27, 2017 and January 26, 2018, Aetna paid a dividend of $0.50 per Aetna common share. Under the terms of the merger agreement, during the period prior to completion of the merger, Aetna is not permitted to declare, set aside or pay any dividend or other distribution other than its regular cash dividend in the ordinary course of business consistent with past practice in an amount not to exceed $0.50 per share per quarter. Under the terms of the merger agreement, during the period before completion of the merger, CVS Health is not permitted to declare, set aside or pay any dividend or other distribution other than its regular cash dividend in the ordinary course of business consistent with past practice in an amount not to exceed $0.50 per share per quarter. The dividend policy of CVS Health following completion of the merger will be determined by CVS Health’s board of directors.

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