Disclosure

1. Summary of significant accounting policies

Organization and operations. On April 2, 2012, Express Scripts, Inc. (“ESI”) consummated a merger (the “Merger”) with Medco Health Solutions, Inc. (“Medco”) and both ESI and Medco became wholly-owned subsidiaries of Express Scripts Holding Company (the “Company” or “Express Scripts”). “We,” “our” or “us” refers to Express Scripts Holding Company and its subsidiaries. The consolidated financial statements (and other data, such as claims volume) reflect the results of operations and financial position of ESI for all periods prior to April 1, 2012. However, references to amounts for periods after the closing of the Merger on April 2, 2012 relate to Express Scripts.

We are the largest full-service pharmacy benefit management (“PBM”) company in the United States, providing healthcare management and administration services on behalf of clients that include managed care organizations, health insurers, third-party administrators, employers, union-sponsored benefit plans, workers’ compensation plans and government health programs. We report segments on the basis of services offered and have determined we have two reportable segments: PBM and Other Business Operations. Our integrated PBM services include retail network pharmacy administration, home delivery pharmacy services, benefit design consultation, drug utilization review, drug formulary management, clinical solutions to improve health outcomes, Medicare Part D, Medicaid and Public Exchange offerings, specialty pharmacy services, fertility services to providers and patients, administration of a group purchasing organization and consumer health and drug information. Through our Other Business Operations segment, we provide services including distribution of pharmaceuticals and medical supplies to providers and clinics and scientific evidence to guide the safe, effective and affordable use of medicines. During the second quarter of 2012, we reorganized our international retail network pharmacy administration business (which was substantially shut down as of December 31, 2012) from our PBM segment into our Other Business Operations segment. During the third quarter of 2011, we reorganized our FreedomFP line of business from our Other Business Operations segment into our PBM segment. Segment disclosures for all years presented have been revised for comparability (see Note 13 - Segment information).

Basis of presentation. The consolidated financial statements include our accounts and those of our wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. Investments in affiliated companies 20% to 50% owned are accounted for under the equity method. Certain amounts in prior years have been reclassified to conform to the current year presentation. The preparation of the consolidated financial statements conforms to generally accepted accounting principles in the United States and requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual amounts could differ from those estimates and assumptions.

Dispositions. On December 3, 2012, we completed the sale of our PolyMedica Corporation (“Liberty”) line of business. We retain certain cash flows associated with Liberty following the sale which preclude classification of this business as a discontinued operation. On September 14, 2012, we completed the sale of our ConnectYourCare (“CYC”) line of business. Due to immateriality, it has not been included in discontinued operations.

On December 4, 2012, we completed the sale of our Europa Apotheek Venlo B.V. (“EAV”) line of business. On June 7, 2013, we completed the sale of the portion of our United BioSource LLC (“UBC”) business which primarily provided technology solutions and publications for biopharmaceutical companies. On July 1, 2013, we completed the sale of the portion of our UBC business related to providing health economics, outcomes research, data analytics and market access services. On August 15, 2013, we completed the sale of the portion of our UBC business related to specialty services for pre-market trials. On November 1, 2013, we completed the sale of our acute infusion therapies line of business. During 2012, we determined that our operations in Europe (“European operations”) were not core to our future operations and committed to a plan to dispose of this business. These lines of business are classified as discontinued operations.

In accordance with applicable accounting guidance, the results of operations for these entities are reported as discontinued operations for all periods presented in the accompanying consolidated statement of operations. For all periods presented, assets and liabilities of the discontinued operations are segregated in the accompanying consolidated balance sheet. Additionally, for all periods presented, cash flows of our discontinued operations are segregated in our accompanying consolidated statement of cash flows (see Note 4 - Dispositions).

Cash and cash equivalents. Cash and cash equivalents include cash on hand and investments with original maturities of three months or less. We have banking relationships resulting in certain cash disbursement accounts being maintained by banks not holding our cash concentration accounts. As a result, cash disbursement accounts carrying negative book balances of $684.4 million and $545.3 million (representing outstanding checks not yet presented for payment) have been reclassified to claims and rebates payable, accounts payable and accrued expenses, as appropriate, at December 31, 2013 and 2012, respectively. This reclassification restores balances to cash and current liabilities for liabilities to our vendors which have not been settled. No overdraft or unsecured short-term loan exists in relation to these negative balances.

We have restricted cash and investments in the amount of $22.8 million and $19.6 million at December 31, 2013 and 2012, respectively. These amounts consist of investments and cash, which include employers’ pre-funding amounts, amounts restricted for state insurance licensure purposes and amounts restricted for the group purchasing organization.

Accounts receivable. Based on our revenue recognition policies discussed below, certain claims at the end of each period are unbilled. Revenue and unbilled receivables for those claims are estimated each period based on the billable amount that is applied to the claim at the time of adjudication. That calculation is completed based on the pricing setup agreed upon with each client. Estimates are adjusted to actual at the time of billing. Historically, adjustments to our original estimates have been immaterial. As of December 31, 2013 and 2012, unbilled receivables were $2,618.3 million and $1,792.0 million, respectively. Unbilled receivables are typically billed to clients within 30 days based on the contractual billing schedule agreed upon with the client.

We provide an allowance for doubtful accounts equal to estimated uncollectible receivables. This estimate is based on the current status of each customer’s receivable balance as well as current economic and market conditions. Receivables are written off against the allowance only upon determination that such amounts are not recoverable and all collection attempts have failed. Our allowance for doubtful accounts also reflects amounts associated with member premiums for the Company’s Medicare Part D product offerings and amounts for certain supplies reimbursed by government agencies and insurance companies. We regularly review and analyze the adequacy of these allowances based on a variety of factors, including the age of the outstanding receivable and the collection history. When circumstances related to specific collection patterns change, estimates of the recoverability of receivables are adjusted.

As of December 31, 2013 and 2012, we have an allowance for doubtful accounts for continuing operations of $202.2 million and $132.5 million, respectively. As a percent of accounts receivable, our allowance for doubtful accounts for continuing operations was 4.8% and 2.4% at December 31, 2013 and 2012, respectively. The increase in the allowance for doubtful accounts is driven by the current status of aged balances of certain of our products and services that tend to have longer collection periods.

The Company is a provider to State of Illinois employees. As of December 31, 2013 and 2012, the Company had an outstanding receivable balance of approximately $320.1 million and $308.4 million, respectively, from the State of Illinois. The Company has not recorded a reserve against this receivable, as it is associated with a State, which continues to make payments. The Company believes that the full receivable balance will be realized.

Inventories. Inventories consist of prescription drugs and medical supplies which are stated at the lower of first-in first-out cost or market.

Property and equipment. Property and equipment is carried at cost and is depreciated using the straight-line method over estimated useful lives of 7 years for furniture and 3 years to 5 years for equipment and purchased computer software. Buildings are amortized on a straight-line basis over estimated useful lives of 10 to 35 years. Leasehold improvements are amortized on a straight-line basis over the remaining term of the lease or the useful life of the asset, if shorter. Expenditures for repairs, maintenance and renewals are charged to income as incurred. Expenditures that improve an asset or extend its estimated useful life are capitalized. When properties are retired or otherwise disposed of, the related cost and accumulated depreciation are removed from the accounts and any gain or loss is included in income.

Research and development expenditures relating to the development of software for internal purposes are charged to expense until technological feasibility is established. Thereafter, the remaining software production costs up to the date placed into production are capitalized and included as property and equipment. Amortization of the capitalized amounts commences on the date placed into production and is computed on a product-by-product basis using the straight-line method over the remaining estimated economic life of the product but not more than 5 years. Reductions, if any, in the carrying value of capitalized software costs to net realizable value are expensed. With respect to capitalized software costs, we recorded amortization expense of $205.0 million in 2013, $137.6 million in 2012 and $26.2 million in 2011.

Marketable securities. All investments not included as cash and cash equivalents are accounted for in accordance with applicable accounting guidance for investments in debt and equity securities. Management determines the appropriate classification of our marketable securities at the time of purchase and re-evaluates such determination at each balance sheet date. All marketable securities at December 31, 2013 and 2012 were recorded in other noncurrent assets on our consolidated balance sheet (see Note 2 - Fair value measurements).

Securities bought and held principally for the purpose of selling them in the near term are classified as trading securities. Trading securities are reported at fair value, which is based upon quoted market prices, with unrealized holding gains and losses included in earnings. We held trading securities, consisting primarily of mutual funds, totaling $18.7 million and $15.8 million at December 31, 2013 and 2012, respectively. We maintain our trading securities to offset changes in certain liabilities related to our deferred compensation plan discussed in Note 10 - Employee benefit plans and stock-based compensation plans. Net gain (loss) recognized on the trading portfolio was $1.2 million, $1.0 million and $(0.1) million in 2013, 2012 and 2011, respectively.

Securities not classified as trading or held-to-maturity are classified as available-for-sale securities. Available-for-sale securities are reported at fair value, which is based upon quoted market prices, with unrealized holding gains and losses reported through other comprehensive income, net of applicable taxes. We held no securities classified as available for sale at December 31, 2013 or 2012.

Impairment of long-lived assets. We evaluate whether events and circumstances have occurred which indicate the remaining estimated useful life of long-lived assets, including other intangible assets, may warrant revision or the remaining balance of an asset may not be recoverable. The measurement of possible impairment is based on a comparison of the fair value of the related assets to the carrying value using discount rates that reflect the inherent risk of the underlying business. Impairment losses, if any, would be recorded to the extent the carrying value of the assets exceeds the implied fair value resulting from this calculation.

During 2012, we recorded impairment charges of $9.5 million of intangible assets as a result of a change in business environment and our plan to dispose of EAV. Furthermore, we recorded an impairment charge totaling $23.0 million as a result of our plan to dispose of Liberty (see Note 4 - Dispositions and Note 6 - Goodwill and other intangibles).

Goodwill. Goodwill is evaluated for impairment annually or when events or circumstances occur indicating that goodwill might be impaired. Guidance related to goodwill impairment testing provides an option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. We determine reporting units based on component parts of our business one level below the segment level. Our reporting units represent businesses for which discrete financial information is available and reviewed regularly by segment management. If we perform a qualitative assessment, the Company considers various events and circumstances when evaluating whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount and whether the first step of the goodwill impairment test (“Step 1”) is necessary.

If we were to perform Step 1, the measurement of possible impairment would be based on a comparison of the fair value of each reporting unit to the carrying value of the reporting unit’s net assets. Impairment losses, if any, would be determined based on the fair value of the individual assets and liabilities of the reporting unit, using discount rates that reflect the inherent risk of the underlying business. We would record an impairment charge to the extent the carrying value of goodwill exceeds the implied fair value of goodwill resulting from this calculation. This valuation process involves assumptions based upon management’s best estimates and judgments that approximate the market conditions experienced for our reporting units at the time the impairment assessment is made. Actual results may differ from these estimates due to the inherent uncertainty involved in such estimates.

For our 2013 impairment test, we did not perform a qualitative assessment for any of our reporting units, and instead began with Step 1 of the goodwill impairment analysis. No impairment existed for any of our reporting units at December 31, 2013 or 2012.

During 2013, we wrote off $32.9 million of goodwill based on a reassessment of the carrying values of assets and liabilities within our acute infusion therapies line of business (see Note 6 - Goodwill and other intangibles).

During 2012, we wrote off $2.0 million of goodwill based on a reassessment of the carrying values of assets and liabilities within EAV’s line of business (see Note 6 - Goodwill and other intangibles).

Other intangible assets. Other intangible assets include, but are not limited to, customer contracts and relationships, deferred financing fees and trade names. Deferred financing fees are recorded at cost. Customer contracts and relationships are valued at fair market value when acquired using the income method. Customer contracts and relationships related to our 10-year contract with WellPoint, Inc. (“WellPoint”) under which we provide pharmacy benefit management services to WellPoint and its designated affiliates (“the PBM agreement”) are being amortized using a modified pattern of benefit method over an estimated useful life of 15 years. Customer contracts and relationships intangible assets related to our acquisition of Medco are being amortized using a modified pattern of benefit method over an estimated useful life of 2 to 16 years, respectively. The customer contract related to our asset acquisition of the SmartD Medicare Prescription Drug Plan is being amortized over an estimated useful life of 10 years. All other intangible assets, excluding legacy ESI trade names which have an indefinite life, are amortized on a straight-line basis, which approximates the pattern of benefit, over periods from 5 to 20 years for customer-related intangibles, 10 years for trade names and 2 to 30 years for other intangible assets (see Note 6 - Goodwill and other intangibles).

The amount of other intangible assets reported is net of accumulated amortization of $4,088.0 million and $2,156.2 million at December 31, 2013 and 2012, respectively. Amortization expense for our continuing operations for other intangible assets, excluding deferred financing fees, recorded in selling, general and administrative expense (“SG&A”) was $1,904.2 million, $1,474.4 million and $40.7 million for the years ended December 31, 2013, 2012 and 2011, respectively. In accordance with applicable accounting guidance, amortization expense for customer contracts related to the PBM agreement has been included as an offset to revenue in the amount of $114.0 million for each of the years ended December 31, 2013, 2012 and 2011. Amortization expense for deferred financing fees included in interest expense was $19.6 million, $43.6 million and $81.0 million in 2013, 2012 and 2011, respectively. In 2012 and 2011, these amounts include fees incurred related to the termination or partial termination of bridge loan financing in connection with business combinations in process during each respective period.

Self-insurance accruals. We maintain insurance coverage for claims that arise in the normal course of business. Where insurance coverage is not available, or, in our judgment, is not cost-effective, we maintain self-insurance accruals to reduce our exposure to future legal costs, settlements and judgments. Self-insured losses are accrued based upon estimates of the aggregate liability for the costs of uninsured claims incurred using certain actuarial assumptions followed in the insurance industry and our historical experience (see Note 12 - Commitments and contingencies). It is not possible to predict with certainty the outcome of these claims, and we can give no assurances any losses, in excess of our insurance and any self-insurance accruals, will not be material.

Fair value of financial instruments. The carrying value of cash and cash equivalents, restricted cash and investments, accounts receivable, claims and rebates payable and accounts payable approximated fair values due to the short-term maturities of these instruments. The fair value, which approximates the carrying value, of our bank credit facility was estimated using the current rates offered to us for debt with similar maturity (see Note 2 - Fair value measurements).

Revenue recognition. Revenues from our PBM segment are earned by dispensing prescriptions from our home delivery and specialty pharmacies, processing claims for prescriptions filled by retail pharmacies in our networks, and providing services to drug manufacturers, including administration of discount programs (see also “Rebate accounting” below).

Revenues from dispensing prescriptions from our home delivery pharmacies are recorded when drugs are shipped. At the time of shipment, our earnings process is complete; the obligation of our customer to pay for the drugs is fixed and, due to the nature of the product, the member may not return the drugs or receive a refund.

Revenues from our specialty line of business are from providing medications/pharmaceuticals for diseases that rely upon high-cost injectable, infused, oral or inhaled drugs which have sensitive handling and storage needs; bio-pharmaceutical services including marketing, reimbursement and customized logistics solutions; and providing fertility services to providers and patients. Specialty revenues earned by our PBM segment are recognized at the point of shipment. At the time of shipment, we have performed substantially all of our obligations under our customer contracts and do not experience a significant level of reshipments. Appropriate reserves are recorded for discounts and contractual allowances which are estimated based on historical collections over a recent period. Any differences between our estimates and actual collections are reflected in operations in the period in which payment is received. Differences may affect the amount and timing of our revenues for any period if actual performance varies from our estimates. Allowances for returns are estimated based on historical return trends.

Revenues from our PBM segment are also derived from the distribution of pharmaceuticals requiring special handling or packaging where we have been selected by the pharmaceutical manufacturer as part of a limited distribution network and the distribution of pharmaceuticals through Patient Assistance Programs where we receive a fee from the pharmaceutical manufacturer for administrative and pharmacy services for the delivery of certain drugs free of charge to doctors for their low-income patients. These revenues include administrative fees received from these programs.

Revenues related to the distribution of prescription drugs by retail pharmacies in our networks consist of the prescription price (ingredient cost plus dispensing fee) negotiated with our clients, including the portion to be settled directly by the member (co-payment), plus any associated administrative fees. These revenues are recognized when the claim is processed. When we independently have a contractual obligation to pay our network pharmacy providers for benefits provided to our clients’ members, we act as a principal in the arrangement and we include the total prescription price as revenue in accordance with applicable accounting guidance. Although we generally do not have credit risk with respect to retail co-payments, the primary indicators of gross treatment are present. When a prescription is presented by a member to a retail pharmacy within our network, we are solely responsible for confirming member eligibility, performing drug utilization review, reviewing for drug-to-drug interactions, performing clinical intervention, which may involve a call to the member’s physician, communicating plan provisions to the pharmacy, directing payment to the pharmacy and billing the client for the amount it is contractually obligated to pay us for the prescription dispensed, as specified within our client contracts. We also provide benefit design and formulary consultation services to clients. We have separately negotiated contractual relationships with our clients and with network pharmacies, and under our contracts with pharmacies we assume the credit risk of our clients’ ability to pay for drugs dispensed by these pharmacies to clients’ members. We, not our clients, are obligated to pay the retail pharmacies in our networks the contractually agreed upon amount for the prescription dispensed, as specified within our provider contracts. These factors indicate we are a principal as defined by applicable accounting guidance and, as such, we record the total prescription price contracted with clients in revenue.

If we merely administer a client’s network pharmacy contracts to which we are not a party and under which we do not assume credit risk, we record only our administrative fees as revenue. For these clients, we earn an administrative fee for collecting payments from the client and remitting the corresponding amount to the pharmacies in the client’s network. In these transactions we act as a conduit for the client. Because we are not the principal in these transactions, drug ingredient cost is not included in our revenues or in our cost of revenues.

In retail pharmacy transactions, amounts paid to pharmacies and amounts charged to clients are always exclusive of the applicable co-payment. Retail pharmacy co-payments, which we instructed retail pharmacies to collect from members, of $12,620.3 million, $11,668.6 million and $5,786.6 million for the years ended December 31, 2013, 2012 and 2011, respectively, are included in revenues and cost of revenues. Retail pharmacy co-payments increased in the years ended December 31, 2013 and 2012 as compared to 2011 due to the Merger.

Many of our contracts contain terms whereby we make certain financial and performance guarantees, including the minimum level of discounts or rebates a client may receive, generic utilization rates and various service guarantees. These clients may be entitled to performance penalties if we fail to meet a financial or service guarantee. Actual performance is compared to the guarantee for each measure throughout the period and accruals are recorded as an offset to revenue if we determine that our performance against the guarantee indicates a potential liability. These estimates are adjusted to actual when the guarantee period ends and we have either met the guaranteed rate or paid amounts to clients. Historically, adjustments to our original estimates have been immaterial.

At the end of a period, any unbilled revenues related to the sale of prescription drugs that have been adjudicated with retail pharmacies are estimated based on the billable amount that is applied to the claim at the time of adjudication. That calculation is completed based on the pricing setup agreed upon with each client. Those amounts due from our clients are recorded as revenue as they are contractually due to us for past transactions. Adjustments are made to these estimated revenues to reflect actual billings at the time clients are billed; historically, these adjustments have not been material.

In accordance with applicable accounting guidance, amortization expense for customer contracts related to the PBM agreement has been included as an offset to revenue in the amount of $114.0 million for each of the years ended December 31, 2013, 2012 and 2011.

Revenues from our Other Business Operations segment are earned from the distribution of pharmaceuticals and medical supplies to providers and clinics, performance-oriented fees paid by Specialty Pharmacy manufacturers, revenues from late-stage clinical trials, risk management and drug safety services associated with UBC and other non-product related revenues.

Revenues from distribution activities are recognized at the point of shipment. At the time of shipment, we have performed substantially all of our obligations under our customer contracts and do not experience a significant level of reshipments. Appropriate reserves are recorded for discounts and contractual allowances, which are estimated based on historical collections over a recent period. Any differences between our estimates and actual collections are reflected in operations in the period in which payment is received. Differences may affect the amount and timing of our revenues for any period if actual performance varies from our estimates. Allowances for returns are estimated based on historical return trends.

Our UBC subsidiary provides services to pharmaceutical and biotechnology companies related to late-stage clinical trials, risk management and drug safety. These services are typically performed over several months and include general project management services in addition to specific deliverables. Revenue related to their services is recognized as these services are performed.

Rebate accounting. We administer ESI’s rebate program through which we receive rebates and administrative fees from pharmaceutical manufacturers. Rebates and administrative fees earned for the administration of this program, performed in conjunction with claims processing and home delivery services provided to clients, are recorded as a reduction of cost of revenue and the portion of the rebate and administrative fees payable to customers is treated as a reduction of revenue. The portion of rebates and administrative fees payable to clients is estimated based on historical and/or anticipated sharing percentages. These estimates are adjusted to actual when amounts are paid to clients subsequent to collections from pharmaceutical manufacturers. We record rebates and administrative fees receivable from the manufacturer and payable to clients when the prescriptions covered under contractual agreements with the manufacturers are dispensed; these amounts are not dependent upon future pharmaceutical sales. Rebates and administrative fees billed to manufacturers are determinable when the drug is dispensed. We pay all or a contractually agreed upon portion of such rebates to our clients.

We also administer Medco’s market share performance rebate program. Estimates for rebates receivable and the related amounts payable to clients are accrued monthly based on the terms of the applicable contract, historical data and current utilization. These estimates are adjusted to actual when amounts are paid to clients subsequent to collections from pharmaceutical manufacturers.

Medicare prescription drug program. Our revenues include premiums associated with our Medicare prescription drug program (“PDP”) risk-based product offerings. These products involve prescription dispensing for beneficiaries enrolled in the Centers for Medicare & Medicaid Services (“CMS”)-sponsored Medicare Part D Prescription Drug Program (“Medicare Part D”) prescription drug benefit. We also offer numerous customized benefit plan designs to employer group retiree plans under the Medicare Part D prescription drug benefit.

The PDP premiums are determined based on our annual bid and related contractual arrangements with CMS. The PDP premiums are primarily comprised of amounts received from CMS as part of a direct subsidy and an additional subsidy from CMS for low-income member premiums, as well as premium payments received from members. These premiums are recognized ratably to revenues over the period in which members are entitled to receive benefits. Premiums received in advance of the applicable benefit period are deferred and recorded in accrued expenses on the consolidated balance sheet. There is a possibility that the annual costs of drugs may be higher or lower than premium revenues. As a result, CMS provides a risk corridor adjustment for the standard drug benefit that compares our actual annual drug costs incurred to the targeted premiums in our CMS-approved bid. Based on the risk corridor, we will receive from CMS additional premium amounts or be required to refund to CMS previously received premium amounts. We calculate the risk corridor adjustment on a quarterly basis based on drug cost experience to date and record an adjustment to revenues with a corresponding receivable from or payable to CMS reflected on the consolidated balance sheet.

In addition to PDP premiums, there are certain co-payments and deductibles (the “cost share”) due from members based on prescription orders by those members, some of which are subsidized by CMS in cases of low-income membership. Non-low-income members received a cost share benefit under the coverage gap discount program with brand pharmaceutical manufacturers. For subsidies received in advance, the amount is deferred and recorded in accrued expenses on the consolidated balance sheet. If there is cost share due from members, pharmaceutical manufacturers or CMS, or premiums due from members, the amount is accrued and recorded in receivables, net, on the consolidated balance sheet. After the end of the contract year and based on actual annual drug costs incurred, cost share amounts are reconciled with CMS and the corresponding receivable or payable is settled. The cost share is treated consistently as other co-payments derived from providing PBM services, a component of revenues on the consolidated statement of operations.

Our cost of revenues includes the cost of drugs dispensed by our home delivery pharmacies or retail network for members covered under our Medicare PDP product offerings. These amounts are recorded at cost as incurred. We receive a catastrophic reinsurance subsidy from CMS for approximately 80% of costs incurred by individual members in excess of the individual annual out-of-pocket maximum. The subsidy is reflected as an offsetting credit in cost of revenues to the extent that catastrophic costs are incurred. Catastrophic reinsurance subsidy amounts received in advance are deferred and recorded in accrued expenses on the consolidated balance sheet. If there are catastrophic reinsurance subsidies due from CMS, the amount is accrued and recorded in receivables, net, on the consolidated balance sheet. After the end of the contract year and based on actual annual drug costs incurred, catastrophic reinsurance amounts are reconciled with CMS and the corresponding receivable or payable is settled.

Cost of revenues. Cost of revenues includes product costs, network pharmacy claims costs, co-payments and other direct costs associated with dispensing prescriptions, including shipping and handling (see also “Revenue recognition” and “Rebate accounting”).

Surescripts. Surescripts enables physicians to securely access health information when caring for their patients through a fast and efficient health exchange. ESI and Medco each retained a one-sixth ownership in Surescripts, resulting in a combined one-third ownership in Surescripts. Due to the increased ownership percentage following the Merger, we account for the investment in Surescripts using the equity method. See Note 3 - Changes in business for further information.

Income taxes. Deferred tax assets and liabilities are recognized based on temporary differences between financial statement basis and tax basis of assets and liabilities using presently enacted tax rates. We account for uncertainty in income taxes as described in Note 8 - Income taxes.

Net income attributable to non-controlling interest. Net income attributable to non-controlling interest represents the share of net income allocated to members of our consolidated affiliates.

Employee stock-based compensation. Grant-date fair values of stock options and “stock-settled” stock appreciation rights (“SSRs”) are estimated using a Black-Scholes valuation model. Compensation expense is reduced based on estimated forfeitures with adjustments recorded at the time of vesting for actual forfeitures. Forfeitures are estimated based on historical experience. We use an accelerated method of recognizing compensation cost for awards with graded vesting, which essentially treats the grant as three separate awards, with vesting periods of 12, 24 and 36 months for those grants that vest over three years.

See Note 10 - Employee benefit plans and stock-based compensation plans for more information regarding stock-based compensation plans.

Pension plans. Express Scripts has elected to determine the projected benefit obligation for cash balance pension plans as the value of the benefits to which employees participating in the plans would be entitled if they separated from service immediately. The amount by which the projected benefit obligation exceeds the fair value of the pension plan assets is recorded in other liabilities on the consolidated balance sheet.

The determination of our expense for pension plans is based on management’s assumptions, which are developed with the assistance of actuaries. We reassess the plan assumptions on a regular basis.

Net actuarial gains and losses reflect experience differentials relating to differences between expected and actual demographic changes, differences between expected and actual healthcare cost increases, and the effects of changes in actuarial assumptions. As allowed under applicable accounting guidance, actual gains and losses on invested assets and net actuarial gains and losses are recorded into net income in the period incurred.

See Note 11 - Pension and other post-retirement benefits for more information regarding pension plans.

Earnings per share. Basic earnings per share (“EPS”) is computed using the weighted-average number of common shares outstanding during the period. Diluted earnings per share is computed in the same manner as basic earnings per share but adds the number of additional common shares that would have been outstanding for the period if the dilutive potential common shares had been issued. All shares are calculated under the “treasury stock” method. The following is the reconciliation between the number of weighted-average shares used in the basic and diluted earnings per share calculation for all periods (amounts are in millions):



	2013⁽¹⁾	2012	2011
Weighted-average number of common shares outstanding during the period – Basic	808.6	731.3	500.9
Dilutive common stock equivalents:⁽²⁾
Outstanding stock options, “stock-settled” stock appreciation rights, restricted stock units and executive deferred compensation units	13.0	16.0	4.1
Weighted-average number of common shares outstanding during the period – Diluted⁽³⁾	821.6	747.3	505.0

(1)

The increase in the weighted-average number of common shares outstanding for the year ended December 31, 2013 used for both Basic and Diluted EPS resulted primarily from the issuance of 318.0 million shares in connection with the Merger and the issuance of 13.4 million shares from option exercises and restricted stock unit distributions related to awards converted in the Merger, partially offset by the repurchase of 60.4 million of treasury shares for the year ended December 31, 2013. The increase in the weighted-average number of common shares outstanding for the year ended December 31, 2012 used for both Basic and Diluted EPS resulted primarily from the issuance of 318.0 million shares in connection with the Merger and the issuance of 13.2 million shares from option exercises and restricted stock unit distributions related to awards converted in the Merger.


(2)	Dilutive common stock equivalents exclude the 2.3 million shares that we would receive if the 2013 Accelerated Share Repurchase Agreement discussed in Note 9 - Common stock was settled as of December 31, 2013. These were excluded because their effect was anti-dilutive.


(3)	Excludes awards of 3.5 million, 5.9 million and 3.3 million for the years ended December 31, 2013, 2012 and 2011, respectively. These were excluded because their effect was anti-dilutive.

Foreign currency translation. The financial statements of our foreign subsidiaries are translated into U.S. dollars using the exchange rate at each balance sheet date for assets and liabilities and a weighted-average exchange rate for each period for revenues, expenses, gains and losses. The functional currency for our foreign subsidiaries is the local currency and cumulative translation adjustments (credit balances of $11.7 million and $18.9 million at December 31, 2013 and 2012, respectively) are recorded within the accumulated other comprehensive income component of stockholders’ equity.

Comprehensive income. In addition to net income, comprehensive income (net of taxes) includes foreign currency translation adjustments. We recognized foreign currency translation adjustments of $(7.2) million, $1.9 million and $(2.8) million for the years ending December 31, 2013, 2012 and 2011, respectively.

New accounting guidance. In July 2013, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance containing changes to the presentation of an unrecognized tax benefit when a loss or credit carryforward exists. This statement is effective for financial statements issued for annual periods beginning after December 15, 2013, with early adoption permitted. Adoption of the standard is not expected to impact our financial position, results of operations, or cash flows.

In February 2013, the FASB issued authoritative guidance containing changes to the presentation of amounts reclassified out of accumulated other comprehensive income. This statement is effective for financial statements issued for annual periods beginning after December 15, 2012. Adoption of the standard impacts the presentation of certain information within the consolidated financial statements, but will not impact our consolidated financial position, consolidated results of operations or consolidated cash flows. The Company has not reclassified amounts out of accumulated other comprehensive income; as such, no additional information is presented for the years ended December 31, 2013, 2012 or 2011.

Entity Registrant Name	Express Scripts Holding Co.
CIK	0001532063
Accession number	0001532063-14-000006
Link to XBRL instance	http://www.sec.gov/Archives/edgar/data/1532063/000153206314000006/esrx-20131231.xml
Fiscal year end	--12-31
Fiscal year focus	2013
Fiscal period focus	FY
Current balance sheet date	2013-12-31
Current year-to-date income statement start date	2013-01-01

Analysis: Nature of Business, Basis of Reporting, Significant Accounting Policies, Revenues Recognition