10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2013, OR

¨  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM TO .

Commission File Number: 1-35490

EXPRESS SCRIPTS HOLDING COMPANY

(Exact name of registrant as specified in its charter)

Delaware	45-2884094
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
One Express Way, St. Louis, MO	63121
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (314) 996-0900

Securities registered pursuant to Section 12(b) of the Act:

Title of Class	Name of each exchange on which registered
Common Stock $0.01 par value	Nasdaq Global Select Market

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  x    No  ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.     x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨ (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes  ¨    No  x

The aggregate market value of Registrant’s voting stock held by non-affiliates as of June 28, 2013, was $50,173,343,223 based on 812,655,381 such shares held on such date by non-affiliates and the last sale price for the Common Stock on such date of $61.74 as reported on the Nasdaq Global Select Market. Solely for purposes of this computation, the Registrant has assumed that all directors and executive officers of the Registrant are affiliates of the Registrant. The Registrant has no non-voting common equity.

Common stock outstanding as of January 31, 2014: 776,032,000 Shares

DOCUMENTS INCORPORATED BY REFERENCE

Part III incorporates by reference portions of the definitive proxy statement for the Registrant’s 2014 Annual Meeting of Stockholders, which is expected to be filed with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year ended December 31, 2013.

TABLE OF CONTENTS

Part I
	Item 1	Business	2
	Item 1A	Risk Factors	18
	Item 1B	Unresolved Staff Comments	26
	Item 2	Properties	26
	Item 3	Legal Proceedings	27
	Item 4	Mine Safety Disclosures	30
Part II
	Item 5	Market For Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	31
	Item 6	Selected Financial Data	33
	Item 7	Management’s Discussion and Analysis of Financial Condition and Results of Operations	36
	Item 7A	Quantitative and Qualitative Disclosures About Market Risk	52
	Item 8	Consolidated Financial Statements and Supplementary Data	53
	Item 9	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	106
	Item 9A	Controls and Procedures	106
	Item 9B	Other Information	106
Part III
	Item 10	Directors, Executive Officers and Corporate Governance	107
	Item 11	Executive Compensation	107
	Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	107
	Item 13	Certain Relationships and Related Transactions, and Director Independence	107
	Item 14	Principal Accounting Fees and Services	107
Part IV
	Item 15	Exhibits, Financial Statement Schedules	108
Signatures			109
Index to Exhibits			111

EX-4.7

EX-4.18

EX-4.29

EX-12.1

EX-21.1

EX-23.1

EX-31.1

EX-31.2

EX-32.1

EX-32.2

EX-101 INSTANCE DOCUMENT

EX-101 SCHEMA DOCUMENT

EX-101 CALCULATION LINKBASE DOCUMENT

EX-101 DEFINITION LINKBASE DOCUMENT

EX-101 LABEL LINKBASE DOCUMENT

EX-101 PRESENTATION LINKBASE DOCUMENT

1

Information included in or incorporated by reference in this Annual Report on Form 10-K, other filings with the Securities and Exchange Commission (the “SEC”) and our press releases or other public statements, contains or may contain forward-looking statements. Please refer to a discussion of our forward-looking statements and associated risks in “Part I — Item 1 — Business — Forward-Looking Statements and Associated Risks” and “Part I — Item 1A — Risk Factors” in this Annual Report on Form 10-K.

PART I

THE COMPANY

Item 1 — Business

Industry Overview

Prescription drugs play a significant role in healthcare today and constitute the first line of treatment for many medical conditions. For millions of people, prescription drugs provide the hope of improved health and quality of life.

Total medical costs for employers continue to outpace the rate of overall inflation. National health expenditures as a percentage of Gross Domestic Product are expected to increase to 19.9% in 2022 from an estimated 18.0% in 2013 according to the Centers for Medicare & Medicaid Services (“CMS”). In response to cost pressures being exerted on health benefit providers such as managed care organizations, health insurers, employers and unions, pharmacy benefit management (“PBM”) companies work to develop innovative strategies designed to keep medications affordable.

PBM companies combine retail pharmacy claims processing, formulary management, utilization management and home delivery pharmacy services to create an integrated product offering to manage the prescription drug benefit for payors. Some PBMs also offer specialty medication services that deliver a more effective solution than many retail pharmacies in providing treatments for diseases that rely upon high-cost injectable, infused, oral or inhaled drugs. PBMs have also broadened their service offerings to include compliance programs, outcomes research, drug therapy management programs, sophisticated data analysis and other distribution services.

Company Overview

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 PBM company in the United States, offering a full range of services to our clients, which include managed care organizations, health insurers, third-party administrators, employers, union-sponsored benefit plans, workers’ compensation plans and government health programs. We help health benefit providers address access and affordability concerns resulting from rising drug costs while helping to improve healthcare outcomes. We manage the cost of the drug benefit by performing the following functions:

• evaluating drugs for price, value and efficacy in order to assist clients in selecting a cost-effective formulary

• leveraging purchasing volume to deliver discounts to health benefit providers

• promoting the use of generics and low-cost brands

• offering cost-effective home delivery pharmacy and specialty services that result in drug cost savings for plan sponsors and co-payment savings for members

We work with clients, manufacturers, pharmacists and physicians to increase efficiency in the drug distribution chain, to manage costs in the pharmacy benefit chain and to improve members’ health outcomes and satisfaction.

Suboptimal prescription-related decisions by patients, caregivers and providers continue to cause adverse clinical and financial results for plan sponsors and their members. Healthier outcomes require better decisions. Express Scripts supports healthier outcomes by applying science to health decisions. Express Scripts offers a comprehensive array of solutions to support better choices in four areas: benefit choices, drug choices, pharmacy choices and health choices. Health Decision Science^SM is the Company’s unique approach to understanding and improving the decisions that impact clinical and financial outcomes and applies principles and advanced knowledge from three key disciplines: behavioral sciences, clinical specialization and actionable data. These disciplines form a powerful combination that seeks to increase the likelihood of

2

healthier decisions and healthier outcomes. Consumerology^®, or the advanced application of the behavioral sciences to healthcare, optimizes decision mechanisms and helps make better decisions easier. Therapeutic Resource Centers^SM give patients access to specialist pharmacists and nurses to close gaps in care. By leveraging data from over one billion annual claims, the Company drives actionable data to the point of decision in an effort to enhance safety, effectiveness and affordability.

Plan sponsors who are more aggressive in taking advantage of our effective tools and comprehensive array of solutions to manage drug spend have seen reductions in their prescription drug trend while preserving healthcare outcomes. Greater use of generic drugs and lower-cost brand drugs has resulted in significant reductions in spending for commercially insured consumers and their employers.

We have organized our operations into two business segments based on products and services offered: PBM and Other Business Operations.

Our PBM segment primarily consists of the following products and services:

• retail network pharmacy administration

• home delivery pharmacy services

• benefit design consultation

• drug utilization review

• drug formulary management

• clinical solutions to improve health outcomes, such as adherence, case coordination and personalized medicine

• a flexible array of Medicare Part D, Medicaid and Health Insurance Marketplace (“Public Exchange”) offerings to support clients’ benefits

• specialty pharmacy, including the distribution of fertility pharmaceuticals requiring special handling or packaging

• administration of a group purchasing organization

• consumer health and drug information

The Other Business Operations segment primarily consists of the following products and services:

• distribution of pharmaceuticals and medical supplies to providers and clinics

• scientific evidence to guide the safe, effective and affordable use of medicines

Our revenues are generated primarily from the delivery of prescription drugs through our contracted network of retail pharmacies, home delivery of prescription drugs and specialty pharmacy services and Other Business Operations services. Revenues from the delivery of prescription drugs to our members represented 98.8% of revenues in 2013, 99.0% in 2012 and 99.4% in 2011. Revenues from services, such as the fees associated with the administration of retail pharmacy networks contracted by certain clients, medication counseling services and certain specialty distribution services, comprised the remainder of our revenues.

Prescription drugs are dispensed to members of the health plans we serve primarily through networks of retail pharmacies that are under non-exclusive contracts with us and through home delivery fulfillment pharmacies, specialty drug pharmacies and fertility pharmacies that we operate. More than 68,000 retail pharmacies, which represent over 95% of all United States retail pharmacies, participated in one or more of our networks at December 31, 2013. The top ten retail pharmacy chains represent approximately 60% of the total number of stores in our largest network.

Express Scripts, Inc. was incorporated in Missouri in September 1986, and was reincorporated in Delaware in March 1992. Aristotle Holding, Inc. was incorporated in Delaware on July 15, 2011. Aristotle Holding, Inc. was renamed Express Scripts Holding Company concurrently with the consummation of the Merger.

Our principal executive offices are located at One Express Way, Saint Louis, Missouri, 63121. Our telephone number is 314.996.0900 and our website is www.express-scripts.com. Information included on our website is not part of this annual report.

3

Products and Services

Pharmacy Benefit Management Services

Overview. Our core PBM services involve the management of outpatient prescription drug utilization to foster high quality, cost-effective pharmaceutical care. We consult with our clients to assist in the selection of plan design features that balance clients’ requirements for cost control with member choice and convenience. We focus our solutions to enable better decisions in four important and interrelated areas: benefit choices, drug choices, pharmacy choices and health choices. As a result of these solutions, we believe we are able to deliver healthier outcomes, higher member satisfaction and a more affordable prescription drug benefit. During 2013, 97.9% of our revenue was derived from our PBM operations, compared to 97.6% and 97.2% during 2012 and 2011, respectively.

Retail Network Pharmacy Administration. We contract with retail pharmacies to provide prescription drugs to members of the pharmacy benefit plans we manage. In the United States, Puerto Rico and the Virgin Islands, we negotiate with pharmacies to discount the price at which they will provide drugs to members and manage national and regional networks that are responsive to client preferences related to cost containment, convenience of access for members and network performance. We also manage networks of pharmacies that are customized for or under direct contract with specific clients. In addition, we have contracted Medicare Part D provider networks to comply with CMS access requirements for the Medicare Part D Prescription Drug Program (“PDP”).

All retail pharmacies in our pharmacy networks communicate with us online and in real time to process prescription drug claims. When a member of a plan presents his or her identification card at a network pharmacy, the network pharmacist sends certain specified member, prescriber and prescription information in an industry-standard format through our systems, which process the claim and send a response back to the pharmacy.

Home Delivery Pharmacy Services. We also dispense prescription drugs from our five high-volume automated dispensing home delivery pharmacies and one non-automated dispensing home delivery pharmacy. In addition to the order processing that occurs at these home delivery pharmacies, we also operate several non-dispensing order processing facilities and patient contact centers. We also maintain one non-dispensing home delivery fulfillment pharmacy for business continuity purposes. Our pharmacies provide patients with convenient access to maintenance medications and enable us to manage our clients’ drug costs through operating efficiencies and economies of scale as well as provide greater safety and accuracy. Through our home delivery pharmacies, we are directly involved with the prescriber and patient and, as a result, research shows we are generally able to achieve a higher level of generic substitutions, therapeutic interventions and better adherence than can be achieved through the retail pharmacy networks.

Benefit Design Consultation. We provide clinically sound formularies that encourage the use of equally effective but lower-cost drugs over higher-cost alternatives. This is accomplished through formulary compliance strategies that also maintain member satisfaction. Express Scripts offers several base and advanced formulary management options for clients, including Medicare Part D and Public Exchange formularies. We also offer clients a variety of utilization management tools to manage patient drug utilization and overall drug spend. The most common benefit design options we offer to our clients are financial incentives and reimbursement limitations on the drugs covered by the plan, including drug formularies, tiered co-payments, deductibles or annual benefit maximums, as well as utilization management programs.

Drug Utilization Review. Our electronic claims processing system enables us to implement sophisticated intervention programs to assist in managing prescription drug utilization. The system can alert the pharmacist to drug safety concerns, generic substitution and therapeutic intervention opportunities, as well as formulary adherence issues, and can also administer prior authorization, step therapy protocol programs and drug quantity management at the time a claim is submitted for processing. Our claims processing system also creates a database of drug utilization information that can be accessed at the time the prescription is dispensed, on a retrospective basis to analyze utilization trends and prescribing patterns for more intensive management of the drug benefit, and on a prospective basis to help support pharmacists in drug therapy management decisions.

Drug Formulary Management. Formularies are lists of drugs to which benefit design is applied under the applicable plan. Formulary managementenables patients and physicians to choose clinically appropriate and cost-effective drugs for a given condition. Our foremost consideration in the formulary development process is the clinical appropriateness of the particular drugs. In developing formularies, we first perform a rigorous assessment of the available evidence regarding each drug’s safety and clinical effectiveness. No new drug is added to the formulary until it meets standards of quality established by our National Pharmacy & Therapeutics (“P&T”) Committee, a panel composed of 16 independent physicians and pharmacists in active clinical practice, representing a variety of specialties and practice settings, typically with major academic affiliations. We fully comply with the P&T Committee’s clinical recommendations. In making its clinical recommendation, the P&T Committee has no information regarding the discount or rebate arrangement we might negotiate with the manufacturer. This is

4

designed to ensure the clinical recommendation is not affected by our financial arrangements. After the clinical recommendation is made, the drugs are evaluated on an economic basis to determine optimal cost effectiveness.

We administer a number of different formularies for our clients. A majority of our clients select formularies that are designed to be used with various financial or other incentives, such as three-tier co-payments, which drive the selection of formulary drugs over their non-formulary alternatives. Some clients select closed formularies, in which benefits are available only for drugs listed on the formulary.

We also provide formulary compliance services to our clients. For example, if a doctor has prescribed a drug that is not on a client’s formulary, we notify the pharmacist through our claims processing system. The pharmacist may then contact the doctor to attempt to obtain the doctor’s consent to change the prescription to the appropriate formulary product. The doctor has the final decision-making authority in prescribing the medication.

Clinical Solutions. We also offer innovative clinically based intervention programs to assist and manage patient quality of life, improve health outcomes and facilitate physician communication/education.

Our physician connectivity program facilitates well-informed electronic prescribing with real-time insight that informs prescribers of a patient’s benefit, formulary information and medication history as they write a prescription. RationalMed^®evaluates medical, pharmacy and laboratory data to detect critical patient health and safety issues and gaps in essential care which are then addressed through timely notification to physicians, pharmacies, patients and case managers.ScreenRx^® uses proprietary predictive models to detect adherent and nonadherent patients at risk for future nonadherence and then proactively addresses the problem through interventions tailored specifically for that patient. ExpressAlliance^®offers a portfolio of patient care coordination services that enables client-authorized healthcare professionals to share a common view of a patient’s health record and coordinate future patient outreach and counseling. Personalized medicine combines the latest advances in pharmacogenomics testing with patient and physician outreach to help providers understand which drugs or dosages work best for individual patients, empowering them to make more informed and cost-effective decisions that improve patient care and safety.

Medicare Part D, Medicaid and Public Exchange Offerings. We support clients by providing several program options: the Retiree Drug Subsidy program, which is offered by CMS to reimburse municipalities, unions and private employers for a portion of their eligible expenses for retiree prescription drug benefits; the Employer Group Waiver Plan, a group-enrolled Medicare Part D option for employers and labor groups; and the “PBM inside” service that offers drug-only and integrated medical and Medicare Part D drug benefits to a number of Medicare Part D sponsors. As a PBM supporting health plans, we provide prescription adjudication services in addition to a suite of required programmatic offerings such as a Medication Therapy Management program, Explanation of Benefits for members using prescription services and a variety of member communications related to their prescription benefit. We also offer an individual prescription drug plan which is offered to beneficiaries in all 34 Medicare regions across the U.S., as well as Puerto Rico.

Our product revenues include premiums associated with our Medicare PDP risk-based products offerings. These products involve prescription dispensing for beneficiaries enrolled in the CMS-sponsored Medicare Part D prescription drug benefit. Two of our insurance company subsidiaries have been operating under contracts with CMS since 2006 and one since 2007. All three contracts currently offer several Medicare PDP options. The products involve underwriting the benefit, charging enrollees applicable premiums, providing covered prescription drugs and administering the benefit as filed with CMS. We provide two Medicare drug benefit plan options for beneficiaries, including a “standard Part D” benefit plan as mandated by statute and a benefit plan with enhanced coverage that exceeds the standard Part D benefit plan, available for an additional premium. We also offer numerous customized benefit plan designs to employer group retiree plans under the Medicare Part D prescription drug benefit.

Our member website also supports pre-enrollment and post-enrollment activities on behalf of our Medicare PDP and programs serving multiple clients. Prospective Medicare PDP participants and their caregivers can use the pre-enrollment site’s Plan Compare tool to accurately project costs for all of their medications. The post-enrollment site allows members who have signed up to receive a Medicare Part D benefit from either Express Scripts or one of our clients to securely manage all aspects of their prescription program.

We support health plans that serve Medicaid populations by offering a pharmacy drug benefit. This business is driven by state requirements and we earn revenues based on transaction-related activity. Common services include transitioning members’ access to drugs as plan offerings change, generation of data to the state through encounter files and coordination of benefits between states and other payors. Medicaid populations are expected to grow in states that choose to expand Medicaid eligibility.

5

We also support health plans that serve the newly insured Public Exchange members, which is a population expected to grow with the implementation of the Affordable Care Act. This business is driven by both federal and state requirements and we earn revenues based on transaction-related activity. We offer an array of pharmacy benefit solutions that can be leveraged in plan design to align with any exchange strategy to achieve desired cost and clinical objectives.

Specialty Benefit Services. Specialty medications are used primarily for the treatment of complex and potentially life-threatening diseases. These medications are broadly characterized to include medications with frequent dosing adjustments, intensive clinical monitoring, the need for patient training, specialized product administration requirements and/or are limited to specialty pharmacy network by manufacturers. Through a unique combination of assets and capabilities, Express Scripts provides an enhanced level of care and therapy management for patients taking specialty medications, increased visibility and improved outcomes for payors, as well as custom programs for biopharmaceutical manufacturers.

Accredo Health Group and CuraScript Specialty Pharmacy, which is currently in the process of being rebranded (“Accredo^®”), are focused on dispensing infused, injectable, inhaled and oral drugs that require a higher level of clinical services and support compared to what typically is available from traditional pharmacies. Accredo is able to achieve better, healthier outcomes and reduced waste through a disease-centric organization, specialty trained clinicians, a nationwide footprint, a network of employed and contracted in-home nursing services, reimbursement and patient assistance programs, and bio-pharma services.

Freedom Fertility (“FreedomFP”) is the nation’s leading specialty pharmacy focused on the needs of fertility patients and providers. Through FreedomFP we provide insurance assistance and patient education and support.

Specialty Benefit Management is our next-generation approach to managing total specialty drug spend and enhancing patient care. By integrating medical benefit management, pharmacy benefit management and our pharmacy and distribution services, we offer flexible solutions that control the cost of specialty drugs and make healthcare more affordable and accessible. Approximately half of specialty drug spend is on the medical benefit. As such, it is critical to provide our clients a toolset that can manage specialty spend, regardless of the benefit. Our capabilities include guaranteed savings through medical benefit management services, ensuring the safe and appropriate use of high-cost specialty drugs, redirecting patients and medications to the lowest-cost and most appropriate channel, verifying claims are paid at the contracted rate, improving opportunities to achieve rebates and, where clinically appropriate, moving drug coverage from medical to pharmacy benefit and to lower-cost sites of care.

Administration of a Group Purchasing Organization. We operate a group purchasing organization (“GPO”) that provides various administrative services to participants in the GPO. Services provided include coordination, negotiation and management of contracts for group participants to purchase generic pharmaceuticals and related goods and services from pharmaceutical manufacturers and suppliers, as well as providing strategic analysis and advice regarding pharmacy procurement contracts for the purchase and sale of goods and services.

Consumer Health and Drug Information. Express Scripts empowers member decision-making through online and mobile tools that help guide members in making informed drug, pharmacy and health choices.

Express Scripts’ digital solutions provide easy access and clear, simple functionality. The Express Scripts Member Website (www.express-scripts.com) and mobile app are designed to help keep members’ medication information instantly available on their computers or mobile devices. When members use self-service tools, it results in lower administrative costs, better drug therapy adherence, reduced waste and fewer doctor visits, leading to savings for both clients and members. Information included on our website and mobile app are not part of this annual report.

Other Business Operations Services

Overview. Through our Other Business Operations segment, we operate integrated brands that service the patient through multiple paths. CuraScript Specialty Distribution provides specialty distribution of pharmaceuticals and medical supplies direct to providers and clinics and operates a Group Purchasing Organization for many of our clients. United BioSource LLC (“UBC”) develops scientific evidence to guide the safe, effective and affordable use of medicines. During 2013, 2.1% of our revenue was derived from Other Business Operations services, compared to 2.4% and 2.8% during 2012 and 2011, respectively.

Provider Services. CuraScript Specialty Distribution is a specialty distributor of pharmaceuticals and medical supplies direct to healthcare providers for office or clinic administration. Through our CuraScript Specialty Distribution business unit we provide distribution services primarily to office and clinic-based physicians treating chronic disease patients who regularly order high dollar-value pharmaceuticals. We are able to provide competitive pricing on pharmaceuticals and medical supplies. Headquartered in Lake Mary, Florida, CuraScript Specialty Distribution operates three distribution centers to

6

ship most products overnight within the United States as well as provide distribution capabilities to Puerto Rico and Guam. CuraScript Specialty Distribution is also a contracted supplier with most major group purchasing organizations and can leverage our distribution platform to operate as a third-party logistics provider for pharmaceuticals.

Payor Services. We provide a comprehensive case management approach to manage care by fully integrating pre-certification, case management and discharge planning services for patients. We assist with eligibility review, prior authorization coordination, re-pricing, utilization management, monitoring and reporting.

Segment Information

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 other international retail network pharmacy administration line of 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. Information regarding our segments appears in Note 13 - Segment information of the notes to our consolidated financial statements and is incorporated by reference herein.

Suppliers

We maintain an inventory of brand name and generic pharmaceuticals in our home delivery pharmacies and biopharmaceutical products, including pharmaceuticals for the treatment of rare or chronic diseases, in our specialty pharmacies and distribution centers to meet the needs of our patients. If a drug is not in our inventory, we can generally obtain it from a supplier within one business day. We purchase pharmaceuticals either directly from manufacturers or through authorized wholesalers. Generic pharmaceuticals are generally purchased directly from manufacturers.

Clients

We are a provider of PBM services to several market segments. Our clients include managed care organizations, health insurers, third-party administrators, employers, union-sponsored benefit plans, workers’ compensation plans and government health programs. We also provide specialty services to customers, which include managed care organizations, health insurers, third-party administrators, employers, union-sponsored benefit plans, government health programs, office-based oncologists, renal dialysis clinics, ambulatory surgery centers, primary care physicians, retina specialists and others.

On July 21, 2011 Medco announced that its pharmacy benefit services agreement with UnitedHealth Group would not be renewed, although it continued to provide service under an agreement which expired on December 31, 2012. A transition agreement was in place throughout 2013, during which time patients moved in tranches off of the Medco platform.

In December 2009, ESI completed the purchase of 100% of the shares and equity interests of certain subsidiaries of WellPoint, Inc. (“WellPoint”) that provide pharmacy benefit management services (“NextRx” or the “NextRx PBM Business”). ESI also entered into a 10-year contract under which ESI provides pharmacy benefits management services to members of the affiliated health plans of WellPoint (the “PBM agreement”). Subsequent to this acquisition, we integrated NextRx’s PBM clients into our existing systems and operations.

Express Scripts provides pharmacy network services and home delivery and specialty pharmacy services to the United States Department of Defense (“DoD”). The DoD’s TRICARE Pharmacy Program is the military healthcare program serving active-duty service members, National Guard and Reserve members, and retirees, as well as their dependents. Under the contract, we provide online claims adjudication, home delivery services, specialty pharmacy clinical services, claims processing and contact center support, and other services critical to managing pharmacy trend.

Refer to Note 13 - Segment information for a discussion of client concentration.

7

Medicare Prescription Drug Coverage

The Medicare Prescription Drug, Improvement and Modernization Act of 2003 (the “MMA”) created the federal Voluntary Prescription Drug Benefit Program under “Part D” of the Social Security Act. Eligible Medicare beneficiaries are able to obtain prescription drug coverage under Part D by enrolling in a PDP or a “Medicare Advantage” plan that offers prescription drug coverage (an “MA-PDP”). In addition, the MMA created an opportunity for employers offering eligible prescription drug coverage for their Medicare-eligible members to receive a subsidy payment by enrolling in the Retiree Drug Subsidy (“RDS”) program. In order for an employer to claim the subsidy, the beneficiaries claimed by the employer cannot be enrolled in a PDP or MA-PDP.

Mergers and Acquisitions

On April 2, 2012, ESI consummated the Merger with Medco and both ESI and Medco became wholly-owned subsidiaries of Express Scripts. 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.

See Note 3 - Changes in business for further discussion of our merger and acquisition activity.

We regularly review potential acquisitions and affiliation opportunities. We believe available cash resources, bank financing or the issuance of additional common stock or other securities could be used to finance future acquisitions or affiliations. There can be no assurance we will make new acquisitions or establish new affiliations in 2014 or thereafter (see “Part II — Item 7 — Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Acquisitions and Related Transactions”).

Company Operations

General. As of December 31, 2013, our U.S. PBM segment operated five high-volume automated dispensing home delivery pharmacies, one non-automated dispensing home delivery pharmacy, several non-dispensing order processing centers, patient contact centers, specialty drug pharmacies and fertility pharmacies, and one non-dispensing home delivery pharmacy maintained for business continuity purposes.

At our Canadian facilities we provide a full range of integrated PBM services to insurers, third-party administrators, plan sponsors and the public sector. These services facilitate better health decisions and lower costs and include health claims adjudication and processing services, benefit-design consultation, drug-utilization review, formulary management and medical and drug data analysis services. In addition, we provide an active PBM service in Canada, which includes home delivery of maintenance prescription medications from four regional dispensing pharmacy locations.

Sales and Marketing. Our sales managers and directors market and sell PBM services and are supported by a team of client service representatives, clinical pharmacy managers, and benefit analysis consultants. This team works with clients to make prescription drug use safer and more affordable. In addition, sales personnel dedicated to our Other Business Operations segment use direct marketing to generate new customers and solidify existing customer relationships.

Supply Chain. Our supply chain pharmacy contracting and strategy group is responsible for contracting and administering our pharmacy networks. To participate in our retail pharmacy networks, pharmacies must meet certain qualifications, including the requirement that all applicable state credentialing and/or licensing requirements are being maintained. Pharmacies can contact our pharmacy help desk toll free or access our online pharmacy portal 24 hours a day, 7 days a week, for information and assistance in filling prescriptions for our clients’ members. In addition, our Fraud, Waste & Abuse Services team audits pharmacies in our retail pharmacy networks to determine compliance with the terms of their contracts.

Clinical Support. Our staff of highly trained pharmacists and physicians provides clinical support for our PBM services. Our specialist pharmacistsconduct safety reviews and provide counseling for members with clinical needs in their specialty. We have specialist pharmacists in more than a dozen specialties, including oncology, diabetes care and cardiovascular disease.

Our clinical solutions staff of pharmacists and physicians provides clinical development and operational support for our PBM services. These healthcare professionals are responsible for a wide range of activities, including tracking the drug pipeline; identifying emerging medication-related safety issues and notifying physicians, clients, and patients (as appropriate); providing drug information services; formulary management; development of utilization management, safety (concurrent and retrospective drug utilization review) and other clinical interventions; and/or contacting physicians, pharmacists or patients.

8

Our research & analytics team conducts timely, rigorous and objective research that supports evidence-based pharmacy benefit management and evaluates the clinical, economic and member impact of pharmacy benefits. The creation of predictive models and other analytical tools supports the development and improvement of our products and services. The team also produces the Express Scripts Drug Trend Report, which examines trends in pharmaceutical utilization and cost, as well as the factors that trigger these trends, including behaviors that result in wasteful spending in the pharmacy benefit. The team also presents at client forums and professional meetings and publishes in health-related journals.

Information Technology. Our information technology department supports our pharmacy claims processing systems, our specialty pharmacy systems and other management information systems that are essential to our operations. Throughout 2013, clients were migrated towards a consolidated IT platform as part of the integration process from the Merger.

Uninterrupted point-of-sale electronic retail pharmacy claims processing is a significant operational requirement for us. Claims for our PBM segment are presently processed in the United States through systems that are managed and operated domestically by internal resources and an outsourced vendor. Canadian claims are processed through systems maintained and operated by IBM in Canada and managed by us. We believe we have substantial capacity for growth in our United States and Canadian claims processing facilities.

Specialty pharmacy operations are supported by multiple pharmacy systems that are managed and operated internally.

We leverage outsourced vendor services to provide certain disaster recovery services for systems located at our data centers. For systems not covered by a third-party vendor arrangement, such as our specialty pharmacy data centers, our corporate disaster recovery organization manages internal recovery services.

Competition

There are a number of other PBMs in the United States against which we compete. Some of these are independent PBMs, such as Catamaran and MedImpact. Others are owned by managed care organizations such as Aetna Inc., CIGNA Corporation, Humana, OptumRx (owned by UnitedHealth Group) and Prime Therapeutics (owned by a collection of Blue Cross Blue Shield Plans). Some are owned by retail pharmacies, such as CVS Caremark (owned by CVS). Wal-Mart Stores, Inc. may continue to engage in certain activities competitive with PBMs. We also compete against adjudicators, such as Argus. With the emergence of alternative benefit models through Private Exchanges, the competitive landscape also includes brokers, health plans and consultants. Some of these competitors may have greater financial, marketing and technological resources. In addition, other companies may enter into the business and become increasingly competitive as barriers to entry are relatively low. We believe the primary competitive factors in the industry include the ability to contract with retail pharmacies to ensure our retail pharmacy networks meet the needs of our clients and their members, the ability to negotiate discounts on prescription drugs with drug manufacturers, the ability to navigate the complexities of governmental reimbursed business, including Medicare Part D, Medicaid and the Public Exchanges, the ability to manage cost and quality of specialty drugs, the ability to utilize the information we obtain about drug utilization patterns and consumer behavior to reduce costs for our clients and members, and the level of service that we provide.

Government Regulation and Compliance

Many aspects of our businesses are regulated by federal and state laws and regulations. Since sanctions may be imposed for violations of these laws, compliance is a significant operational requirement and we maintain a comprehensive compliance program. We believe we are operating our business in substantial compliance with all existing legal requirements material to the operation of our businesses. There are, however, significant uncertainties involving the application of many of these legal requirements to our business. In addition, there are numerous proposed healthcare laws and regulations at the federal and state levels, many of which could adversely affect our business or financial position. We are unable to predict what additional federal or state legislation, regulations or enforcement initiatives may be enacted or taken in the future relating to our business or the healthcare industry in general, or what effect any such legislation, regulations or actions might have on us. We cannot provide any assurance that federal or state governments will not impose additional restrictions or adopt interpretations of existing laws that could have a material adverse effect on our consolidated results of operations, consolidated financial position and/or consolidated cash flow from operations.

9

Pharmacy Benefit Management Regulation Generally. Certain federal and state laws and regulations affect or may affect aspects of our PBM business. Among the laws and regulations that may impact our business are the following:

Federal Healthcare Reform. In March 2010, the federal government enacted the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (“Health Reform Laws”). The Health Reform Laws include numerous changes to many aspects of the United States healthcare system, including, but not limited to, additional enforcement mechanisms and rules related to healthcare fraud and abuse enforcement activities, health plan coverage mandates, additional rules and obligations for health insurance providers, certain PBM transparency requirements related to the new healthcare insurance exchanges and expanded healthcare coverage for more Americans. While uncertainties remain regarding implementation of certain components of the Health Reform Laws and related regulatory guidance, the Health Reform Laws may impact our business in a variety of ways. Impacts may include, but are not limited to, an increase in utilization of the pharmacy benefit by a newly enrolled population with an unknown risk profile, additional compliance obligations stemming from increased state and federal government involvement in the healthcare marketplace, increased data reporting obligations to support health plan issuers and insurers operating in the healthcare exchanges, the impact of general market reforms that prohibit the use of many factors traditionally used to establish premiums and adjustments implemented by health plan sponsors and health insurance providers in response to availability of new insurance products and other marketplace changes arising in connection with the Health Reform Laws.

Medicare Part D. We participate in various ways in the federal Medicare Part D program created under MMA, and its implementing regulations and sub-regulatory program guidance (the “Part D Rules”) issued by CMS. Through our licensed insurance subsidiaries (i.e., Express Scripts Insurance Company (“ESIC”), Medco Containment Life Insurance Company and Medco Containment Insurance Company of New York), we operate as Part D PDP sponsors offering PDP coverage and services to our clients and Part D beneficiaries. We also, through our core PBM business, provide Part D-related products and services to other PDP sponsors, MA-PDPs and other employers and clients offering Part D benefits to Part D eligible beneficiaries.

Medicare Part B and Medicaid. We participate in the Medicare Part B program, which covers certain costs for services provided by Medicare participating physicians and suppliers and durable medical equipment. We also participate in many state Medicaid programs directly or indirectly through our clients that are Medicaid managed care contractors. We also perform certain Medicaid subrogation services for clients, which are regulated by federal and state laws.

Anti-Kickback Laws. Subject to certain exceptions and “safe harbors,” the federal anti-kickback statute generally prohibits, among other things, knowingly and willfully paying or offering any payment or other remuneration to induce a person to purchase, lease, order or arrange for (or recommend purchasing, leasing or ordering) items (including prescription drugs) or services reimbursable in whole or in part under Medicare, Medicaid or another federal healthcare program. Several states also have similar laws, some of which apply similar anti-kickback prohibitions to items or services reimbursable by non-governmental payors. Sanctions for violating these federal and state anti-kickback laws may include criminal and civil fines and exclusion from participation in the federal and state healthcare programs.

The federal anti-kickback statute has been interpreted broadly by courts, the Office of Inspector General (“OIG”) within the Department of Health and Human Services (“HHS”), and administrative bodies. Because of the federal statute’s broad scope, federal regulations establish certain “safe harbors” from liability. A practice that does not fall within a safe harbor is not necessarily unlawful, but may be subject to scrutiny and challenge. Anti-kickback laws have been cited as a partial basis, along with state consumer protection laws discussed below, for investigations and multi-state settlements relating to financial incentives provided by drug manufacturers to pharmacies in connection with “product conversion” programs.

There are other anti-kickback laws that may be applicable, such as the Public Contracts Anti-kickback Act, the ERISA Health Plan Anti-kickback Statute and various other state anti-kickback restrictions.

Federal Civil Monetary Penalties Law. The federal civil monetary penalty statute provides for civil monetary penalties against any person who gives something of value to a Medicare or Medicaid program beneficiary that the person knows or should know is likely to influence the beneficiary’s selection of a particular provider for Medicare or Medicaid items or services. Under this law, our wholly-owned home delivery, specialty pharmacies, infusion pharmacies and home health providers are restricted from offering certain items of value to influence a Medicare or Medicaid patient’s use of services. The Health Reform Laws also include several new civil monetary provisions, such as penalties for the failure to report and return a known overpayment and failure to grant timely access to the OIG under certain circumstances.

10

Prompt Pay Laws. Under Medicare Part D and certain state laws which also govern the Public Exchanges, PBMs or certain PBM clients are required to pay retail pharmacy providers within established time periods that may be shorter than existing contracted terms and/or via electronic transfer instead of by check. Changes that require faster payment may have a negative impact on our cash flow from operations. It is anticipated that additional states will consider prompt pay legislation and we cannot predict which states will adopt such legislation or what effect it will have.

False Claims Act and Related Criminal Provisions. The federal False Claims Act (the “False Claims Act”) imposes civil penalties for knowingly making or causing to be made false claims or false records or statements with respect to governmental programs, such as Medicare and Medicaid, in order to obtain reimbursement or failure to return overpayments. Private individuals may bring qui tam or “whistle blower” suits against providers under the False Claims Act, which authorizes the payment of a portion of any recovery to the individual bringing suit. The Health Reform Laws also amended the federal anti-kickback laws to state that any claim submitted to a federal or state healthcare program which violates the anti-kickback law is also a false claim under the False Claims Act. The False Claims Act generally provides for the imposition of civil penalties and for treble damages, resulting in the possibility of substantial financial penalties. Criminal statutes that are similar to the False Claims Act provide that if a corporation is convicted of presenting a claim or making a statement that it knows to be false, fictitious or fraudulent to any federal agency it may be fined. Conviction under these statutes may also result in exclusion from participation in federal and state healthcare programs. Some states have also enacted laws similar to the False Claims Act which may include criminal penalties, substantial fines, and treble damages.

Government Procurement Regulations. As discussed above, we have a contract with the DoD, which subjects us to all of the applicable Federal Acquisition Regulations (“FAR”) and Department of Defense FAR Supplement which govern federal government contracts. Further, there are other federal and state laws applicable to our DoD arrangement and other clients that may be subject to government procurement regulations. In addition, certain of our clients participate as contracting carriers in the Federal Employees Health Benefits Program which is administered by the Office of Personnel Management and contains various PBM standards, including PBM transparency standards.

Antitrust. The antitrust laws generally prohibit competitors from fixing prices, dividing markets and boycotting competitors, regardless of the size or market power of the companies involved. Further, antitrust laws generally prohibit other conduct that is found to restrain competition unreasonably, such as certain attempts to tie or bundle services together and certain exclusive dealing arrangements.

ERISA Regulation. The Employee Retirement Income Security Act of 1974 (“ERISA”) regulates certain aspects of employee pension and health benefit plans, including self-funded corporate health plans with respect to which we have agreements to provide PBM services. We believe that the conduct of our business is not generally subject to the fiduciary obligations of ERISA. However, there can be no assurance that the U.S. Department of Labor (the “DOL”), which is the agency that enforces ERISA, would not assert that the fiduciary obligations imposed by ERISA apply to certain aspects of our operations or that courts would not reach such a ruling in private ERISA litigation.

In addition to its fiduciary provisions, federal law related to ERISA health plans imposes civil and criminal liability on service providers to health plans and certain other persons if certain forms of illegal remuneration are made or received. These provisions of ERISA are similar, but not identical, to the healthcare anti-kickback statutes discussed above, although ERISA lacks the statutory and regulatory “safe harbor” exceptions incorporated into the healthcare statutes. Like the healthcare anti-kickback laws, the corresponding provisions of ERISA are broadly written and their application to particular cases is often uncertain.

Employee benefit plans subject to ERISA are subject to certain rules, published by the DOL, relating to annual Form 5500 reporting obligations. The rules include reporting requirements for direct and indirect compensation received by plan service providers such as PBMs. However, on February 4, 2010, the DOL issued two frequently asked questions that provide that discount and rebate revenue paid to PBMs by drug manufacturers generally need not be reported on a plan’s Form 5500 as indirect compensation.

On December 7, 2010, the DOL held a public hearing regarding the disclosure obligations of service providers to welfare plans under section 408(b)(2) of ERISA. At this time, we are unable to predict whether regulations will be issued, the form of such regulations or the possible impact of such changes on our business practices.

State Fiduciary Legislation. Statutes have been introduced in several states that purport to declare that a PBM is a fiduciary with respect to its clients. We believe that the fiduciary obligations that such statutes would impose would be similar, but not identical, to the scope of fiduciary obligations under ERISA. To date only two jurisdictions—Maine and the District of Columbia—have enacted such a statute. Our trade association, Pharmaceutical Care Management Association (“PCMA”), filed suits in federal courts in Maine and the District of Columbia alleging, among other things, that the statutes are preempted by ERISA with respect to welfare plans that are subject to ERISA. In 2011, Maine’s fiduciary law was repealed. In the District of

11

Columbia case, the court granted in part PCMA’s motion for summary judgment finding that the District of Columbia law was preempted by ERISA and that decision was affirmed by the United States Court of Appeals for the D.C. Circuit. Widespread enactment of such statutes could have a material adverse effect upon our financial condition, results of operations and cash flows.

Consumer Protection Laws. Most states have consumer protection laws that previously have been the basis for investigations and multi-state settlements relating to financial incentives provided by drug manufacturers to retail pharmacies in connection with drug switching programs. Such statutes have also been cited as the basis for claims against PBMs either in civil litigation or pursuant to investigations by state Attorneys General. See “Part I — Item 3 — Legal Proceedings” for discussion of current proceedings relating to these laws or regulations.

Network Access Legislation. A majority of states now have some form of legislation affecting our ability, or our clients’ ability, to limit access to a pharmacy provider network or remove a provider from the network. Such legislation may require us or our clients to admit any retail pharmacy willing to meet the plan’s price and other terms for network participation (“any willing provider” legislation) or may provide that a provider may not be removed from a network except in compliance with certain procedures (“due process” legislation). We have not been materially affected by these statutes.

Certain states have also enacted legislation prohibiting certain PBM clients from imposing additional co-payments, deductibles, limitation on benefits, or other conditions (“Conditions”) on covered individuals utilizing a retail pharmacy when the same Conditions are not otherwise imposed on covered individuals utilizing home delivery pharmacies. However, the legislation requires that the retail pharmacy agree to the same reimbursement amounts and terms and conditions as are imposed on the home delivery pharmacies. An increase in the number of prescriptions filled at retail pharmacies may have a negative impact on the amount of prescriptions filled through home delivery. It is anticipated that additional states will consider similar legislation and we cannot predict which states will adopt such legislation or what effect it will have.

Legislation Affecting Plan Design. Some states have enacted legislation that prohibits managed care plan sponsors from implementing certain restrictive benefit plan design features, and many states have introduced legislation to regulate various aspects of managed care plans, including provisions relating to the pharmacy benefit. For example, some states, under so-called “freedom of choice” legislation, provide that members of the plan may not be required to use network providers, but must instead be provided with benefits even if they choose to use non-network providers. Other states have enacted legislation purporting to prohibit health plans from offering members financial incentives for use of home delivery pharmacies. Legislation has been introduced in some states to prohibit or restrict therapeutic intervention, or to require coverage of all FDA approved drugs. Other states mandate coverage of certain benefits or conditions, and require health plan coverage of specific drugs if deemed medically necessary by the prescribing physician. Such legislation does not generally apply to us directly, but it may apply to certain of our clients, such as managed care organizations and health insurers. If such legislation were to become widely adopted and broad in scope, it could have the effect of limiting the economic benefits achievable through pharmacy benefit management.

Legislation and Regulation Affecting Drug Prices. Some states have adopted so-called “most favored nation” legislation providing that a pharmacy participating in the state Medicaid program must give the state the best price that the pharmacy makes available to any third-party plan. Such legislation may adversely affect our ability to negotiate discounts in the future from network pharmacies.

In addition, federal and state agencies and enforcement officials from time to time investigate pharmaceutical industry pricing practices such as how average wholesale price (“AWP”) is calculated and how pharmaceutical manufacturers report their “best price” on a drug under the federal Medicaid rebate program. AWP is a standard pricing benchmark (published by a third party) used throughout the industry, including by us, as a basis for calculating drug prices under contracts with health plans and pharmacies. First DataBank and Medi-Span, two third-party AWP providers, were defendants in a class action suit in federal court in Boston alleging a conspiracy in the setting of AWP. The parties entered into a settlement agreement which received final approval by the court, and a roll-back of AWP prices for many drugs went into effect on September 26, 2009. First DataBank discontinued publishing AWP information in 2011, at which time we transitioned to use of Medi-Span information. This change did not materially impact our results of operations, financial position or cash flows from operations. Additional changes to or discontinuation of the AWP standard could alter the calculation of drug prices for federal programs and other contracts that use the standard. We are unable to predict whether any such changes will actually occur, and if so, whether such changes would have a material adverse impact on our results of operations, financial position and/or cash flow from operations.

Further, the federal Medicaid rebate program requires participating drug manufacturers to provide rebates on all drugs reimbursed through state Medicaid programs, including through Medicaid managed care organizations. Manufacturers of brand name products must provide a rebate equivalent to the greater of (a) 23.1% of the average manufacturer price (“AMP”)

12

paid by retail community pharmacies or by wholesalers for products distributed to retail community pharmacies, or (b) the difference between AMP and the “best price” available to essentially any customer other than the Medicaid program and certain other government programs, with certain exceptions. We negotiate rebates with drug manufacturers and, in certain circumstances, sell services to drug manufacturers. Investigations have been commenced by certain governmental entities which call into question whether a drug’s “best price” was properly calculated and reported with respect to rebates paid by the manufacturers to the Medicaid programs. We are not responsible for such calculations, reports or payments. There can be no assurance, however, that our ability to negotiate rebates with, or sell services to, drug manufacturers will not be materially adversely affected by such investigations or regulations in the future.

Regulation of Financial Risk Plans. Fee-for-service prescription drug plans generally are not subject to financial regulation by the states. However, if a PBM offers to provide prescription drug coverage on a capitated basis or otherwise accepts material financial risk in providing the benefit, various state and federal laws may regulate the PBM or its subsidiaries. Such laws may require, among other things, that the party at risk establish reserves or otherwise demonstrate financial responsibility. Laws that may apply in such cases include, for example, insurance laws, managed care organization laws and limited prepaid health service plan laws. These may apply, for example, to our licensed Medicare Part D subsidiaries (i.e., ESIC, Medco Containment Life Insurance Company and Medco Containment Insurance Company of New York) and other subsidiary insurance businesses.

Pharmacy Regulation. Our home delivery, specialty and infusion pharmacies are licensed to do business as a pharmacy in the state in which they are located. Most of the states into which we deliver pharmaceuticals have laws that require out-of-state home delivery pharmacies to register with, or be licensed by, the board of pharmacy or similar regulatory body in the state. These states generally permit the pharmacy to follow the laws of the state in which the home delivery service is located, although some states require that we also comply with certain laws in that state. We believe we have registered each of our pharmacies in every state in which such registration is required and that we comply in all material respects with all required laws and regulations. In addition, our pharmacists and nurses are licensed in those states where we believe their activity requires it. Our various pharmacy facilities also maintain certain Medicare and state Medicaid provider numbers as pharmacies providing services under these programs. Participation in these programs requires our pharmacies to comply with the applicable Medicare and Medicaid provider rules and regulations, and exposes the pharmacies to various changes the federal and state governments may impose regarding reimbursement methodologies and amounts to be paid to participating providers under these programs. In addition, several of our pharmacy facilities are participating providers under Medicare Part D and, as a condition to becoming a participating provider under Medicare Part D, the pharmacies are required to adhere to certain requirements applicable to the Medicare Part D program.

Other statutes and regulations affect our home delivery, specialty and infusion pharmacy operations, including the federal and state anti-kickback laws and the federal civil monetary penalty law described above. Federal and state statutes and regulations govern the labeling, packaging, advertising and adulteration of prescription drugs and the dispensing of controlled substances. The Federal Trade Commission requires mail order sellers of goods generally to engage in truthful advertising, to stock a reasonable supply of the product to be sold, to fill mail orders within thirty days and to provide clients with refunds when appropriate. The United States Postal Service has statutory authority to restrict the delivery of drugs and medicines through the mail to a degree that could have an adverse effect on our home delivery operations.

Other Licensure Laws. Many states have licensure or registration laws governing PBMs and certain types of managed care organizations and insurance companies, including, but not limited to, preferred provider organizations, third-party administrators and companies that provide utilization review services. The scope of these laws differs from state to state, and the application of such laws to the activities of PBMs and insurance companies is often unclear. We have registered under such laws in those states in which we have concluded that such registration is required either due to our various PBM services or the activities of our licensed insurance subsidiaries. Moreover, we have received full accreditation for URAC Pharmacy Benefit Management version 2.0 Standards, which includes quality standards for drug utilization management. In addition, accreditation agencies’ requirements for managed care organizations such as the National Committee on Quality Assurance and Medicare Part D regulations for PDP and MA-PDPs may affect the services we provide to such organizations.

Legislation regulating PBM activities in a comprehensive manner has been and continues to be considered in a number of states. In the past, certain organizations, such as the National Association of Insurance Commissioners (“NAIC”), an organization of state insurance regulators, have considered proposals to regulate PBMs and/or certain PBM activities, such as formulary development and utilization management. While the actions of the NAIC would not have the force of law, they may influence states to adopt model legislation that such organizations promulgate. Certain states have adopted PBM registration and/or disclosure laws and we have registered under such laws and are complying with applicable disclosure requirements. In addition to registration laws, some states have adopted legislation mandating disclosure of various aspects of our financial practices, including those concerning pharmaceutical company revenue, as well as prescribing processes for prescription

13

switching programs and client and provider audit terms. Other states are considering similar legislation, and as more states consider these bills it will be difficult to manage the distinct requirements of each.

FDA Regulations. The Health Reform Laws create a regulatory approval pathway for biosimilars (alternatively known as generics) for biological products and provide that an innovator biological product will be granted 12 years of exclusivity. At this time, we are unable to fully evaluate the impact of the changes to biosimilars to our business.

Our clinical research activities are also subject to a number of complex and stringent regulations affecting the biotechnology and pharmaceutical industries. We offer services relating to the conduct of clinical trials and the preparation of marketing applications and are required to comply with applicable regulatory requirements governing, among other things, the design, conduct, performance, monitoring, auditing, recording, analysis and reporting of these trials. In the United States, the Food and Drug Administration (“FDA”) governs these activities pursuant to the agency’s Good Clinical Practice regulations.

HIPAA and Other Privacy Legislation. Most of our activities involve the receipt or use of confidential health information concerning individuals. In addition, we use aggregated and anonymized data for research and analysis purposes and, in some cases, provide access to such data to pharmaceutical manufacturers and third-party data aggregators. Various federal and state laws, including the Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), regulate and restrict the use, disclosure and security of confidential health information, and new legislation is proposed from time to time in various states.

HHS privacy and security regulations included as part of HIPAA impose restrictions on the use and disclosure of individually identifiable health information by certain entities. The security regulations relate to the security of protected health information when it is maintained or transmitted electronically. Other HIPAA requirements relate to electronic transaction standards and code sets for processing of pharmacy claims. We are required to comply with certain aspects of the privacy, security and transaction standard regulations under HIPAA. As part of the American Recovery and Reinvestment Act signed into law on February 17, 2009, Congress adopted the Health Information Technology for Economic and Clinical Health Act (“HITECH”). Subsequently, on January 17, 2013, HHS announced a new rule to strengthen the privacy and security protections established under HIPAA, the final Omnibus Rule (the “Omnibus Rule”). The Omnibus Rule enhances patients’ privacy protections, provides patients new rights to their health information, and strengthens the government’s ability to enforce the law. The changes expand many of the privacy and security requirements to business associates, such as contractors and subcontractors. Business associates may also be liable for increased penalties for noncompliance. The Omnibus Rule significantly changes the breach notification requirements provided by HITECH. Furthermore, the Omnibus Rule sets new limits on how information is used and disclosed for marketing and fundraising purposes, and prohibits the sale of a patient’s health information without his or her permission. As with many other companies subject to HIPAA, the Omnibus Rule may have significant operational and legal consequences for our business.

We believe that we are in compliance in all material respects with HIPAA and other state privacy laws. To date, no patient privacy laws have been adopted that materially impact our ability to provide PBM and pharmacy services, but there can be no assurance that federal or state governments will not enact legislation, impose restrictions or adopt interpretations of existing laws that could have a material adverse effect on our business and financial results.

Other Business Operations Services. Many of the laws and regulations cited above with respect to our PBM activities also apply with respect to our various Other Business Operations services. Of particular relevance are the federal and state anti-kickback laws, state pharmacy regulations and HIPAA, which are described above. In addition, as a condition to conducting our wholesale business, we must maintain various permits and licenses with the appropriate state and federal agencies and we are subject to various wholesale distributor laws that regulate the conduct of wholesale distributors, including, but not limited to, maintaining pedigree papers in certain instances.

Service Marks and Trademarks

We, and our subsidiaries, have registered certain service marks including “EXPRESS SCRIPTS^®,” “MEDCO^®,” “ACCREDO^®,” “CONSUMEROLOGY^®,” “UBC^®,” “MY RX CHOICES^®,” “RATIONALMED^®,” “SCREENRX^®” and “EXPRESS ALLIANCE^®” with the United States Patent and Trademark Office. Our rights to these marks will continue so long as we comply with the usage, renewal filings and other legal requirements relating to the usage and renewal of service marks.

14

Insurance

Our PBM operations, including the dispensing of pharmaceutical products by our home delivery pharmacies, our Other Business Operations, including the distribution of specialty drugs, and the services rendered in connection with our disease management operations, may subject us to litigation and liability for damages. Commercial insurance coverage may be difficult to obtain and cost prohibitive, particularly for certain types of claims. We may maintain significant self-insured retentions where most appropriate and cost effective. We have established certain self-insurance accruals to cover potential claims. There can be no assurance we will be able to maintain certain types of liability insurance coverage in the future or that such insurance coverage, together with our self-insurance accruals, will be adequate to cover potential future claims. A claim, or claims, not covered by insurance or in excess of our insurance coverage could have a material adverse effect on our consolidated results of operations, consolidated financial position and/or consolidated cash flow from operations.

Employees

As of December 31, 2013 and 2012, we employed approximately 29,975 and 30,215 employees, respectively, worldwide. Approximately 14.8% of the employees are members of collective bargaining units at December 31, 2013. Specifically, we employ members of the following unions:

• Service Employees International Union

• American Federation of State, County and Municipal Employees

• United Food and Commercial Workers Union

• United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial & Service Workers International Union, American Federation of Labor – Congress of Industrial Organizations

• Association of Managed Care Pharmacists

• Guild for Professional Pharmacists

• International Union of Operating Engineers

• Retail, Wholesale and Department Store Union, United Food and Commercial Workers

Collective bargaining agreements covering these employees expire at various dates through December 2015. Six collective bargaining agreements with various labor organizations will expire during 2014.

Executive Officers of the Registrant

Our executive officers and their ages as of February 20, 2014 are as follows:

Name	Age	Position
George Paz	58	Chairman and Chief Executive Officer
Timothy Wentworth	53	President
Cathy Smith	50	Executive Vice President and Chief Financial Officer
Keith Ebling	45	Executive Vice President and General Counsel
Edward Ignaczak	48	Executive Vice President, Sales and Marketing
Christine Houston	51	Senior Vice President, Operations
Steven Miller	56	Senior Vice President and Chief Medical Officer
David Norton	58	Senior Vice President, Supply Chain
Glen Stettin	50	Senior Vice President, Clinical Research and New Solutions
Sara Wade	44	Senior Vice President and Chief Human Resources Officer
Gary Wimberly	52	Senior Vice President and Chief Information Officer
Christopher Knibb	44	Vice President and Chief Accounting Officer

Mr. Paz was elected a director of the Company in January 2004 and has served as Chairman of the Board since May 2006. Mr. Paz assumed the role Chief Executive Officer on April 1, 2005 and also served as President from October 2003 to February 2014. Mr. Paz joined us and was elected Senior Vice President and Chief Financial Officer in January 1998 and continued to serve as our Chief Financial Officer following his election to the office of President until his successor joined us in April 2004.

15

Mr. Wentworth was named President of the Company in February 2014. From April 2012 to February 2014 he served as Senior Vice President and President, Sales and Account Management. Mr. Wentworth joined Express Scripts when the company merged with Medco in April 2012. At Medco, he served as Group President, National and Key Accounts from October 2008 to April 2012, as Chief Executive Officer of Medco’s Accredo Health Group subsidiary from March 2006 to October 2008 and as Group President - National Accounts from August 2003 to March 2006.

Ms. Smith was named Executive Vice President and Chief Financial Officer in February 2014. Prior to joining us, Ms. Smith served as Executive Vice President of Strategy and Chief Financial Officer for Walmart International since March of 2010. Previously, Ms. Smith held the position of Executive Vice President and Chief Financial Officer at GameStop Corp., a video game retailer (2009-2010), Centex Corp., a leading U.S. homebuilder (2006-2009), and Kennametal, a global industrial tool manufacturer (2005-2006).

Mr. Ebling was named Executive Vice President and General Counsel in December 2008. Mr. Ebling also served as Secretary from December 2008 to May 2013, as Vice President of Business Development from October 2007 to December 2008, and as Vice President and General Counsel of our CuraScript subsidiary from January 2005 to October 2007.

Mr. Ignaczak was named Executive Vice President, Sales and Marketing in May 2008. From November 2007 to May 2008, he served as Executive Vice President, Sales and Account Management. He was elected Senior Vice President, Sales and Account Management in December 2002. Mr. Ignaczak joined us in April 1998 and served as the Vice President and General Manager of our National Employer Division from April 1998 to December 2002.

Ms. Houston was named Senior Vice President, Operations in February 2014. From February 2012 to February 2014, she served as Senior Vice President, Pharma and Retail Relations and as Vice President/General Manager, Operations from January 2009 to February 2012. Ms. Houston joined us in September 1997 and has served in various leadership positions in Information Technology and Operations.

Dr. Miller was named Senior Vice President and Chief Medical Officer in October 2007. Dr. Miller joined Express Scripts in April 2005 as Vice President, Research and Product.

Mr. Norton was named Senior Vice President, Supply Chain in February 2014. Previously, Mr. Norton served as the Company’s Vice President, Strategy, Integration and Business Development from October 2007 to February 2014, as Vice President, IT Strategy and Planning and Chief Technology Officer from January 2004 to October 2007, as Vice President, Office of Planning and Management Support from January 2003 to January 2004 and as Vice President, PMO from January 2002 to January 2004.

Dr. Stettin was named Senior Vice President, Clinical Research and New Solutions in April 2012. Dr. Stettin joined Express Scripts when the company merged with Medco in April 2012, where he previously served as Senior Vice President and Chief Medical Officer from December 2010 to April 2012 and became Senior Vice President in July 2003. He held a number of leadership positions in several functional areas, including product, technology, clinical and operations, since joining Medco in 1995.

Ms. Wade was named Senior Vice President and Chief Human Resources Officer in December 2010. Prior to that, she served as the Company’s Vice President, Compensation and Benefits from June 2009 to December 2010. Previously, she served at Coca Cola Enterprises as Corporate Vice President, Compensation and Benefits from April 2008 to June 2009, at Patriot Coal Corporation as Senior Vice President, Human Resources from November 2007 to April 2008.

Mr. Wimberly was named Senior Vice President and Chief Information Officer in November 2007. Mr. Wimberly joined us in October 2004 and served as Vice President, Information and Technology until November 2007.

Mr. Knibb joined Express Scripts in February 2013 as Vice President and Chief Accounting Officer. Prior to joining Express Scripts, Mr. Knibb served as Senior Vice President, Chief Accounting Officer of Brightstar Corporation from June 2012 to February 2013. Prior to that, he served as Vice President, Controller and Chief Accounting Officer at Patriot Coal Corporation from October 2011 to June 2012 and as Vice President, Controller from September 2007 to October 2011. Patriot Coal Corporation filed a Chapter 11 bankruptcy petition in July 2012 and emerged in December 2013.

Available Information

We make available through our website (www.express-scripts.com) access to our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, all amendments to those reports (when applicable), and other filings with the SEC. Such access is free of charge and is available as soon as reasonably practicable after such information is filed with the SEC. In addition, the SEC maintains an Internet site (www.sec.gov) containing reports, proxy and information statements, and other information regarding issuers filing electronically with the SEC (which includes us). Information included on our website is not part of this annual report.

16

Forward-Looking Statements and Associated Risks

Information we have included or incorporated by reference in this Annual Report on Form 10-K, and information which may be contained in our other filings with the Securities and Exchange Commission (“the SEC”) and our press releases or other public statements, contains or may contain forward-looking statements. These forward-looking statements include, among others, statements of our plans, objectives, expectations (financial or otherwise) or intentions.

Our forward-looking statements involve risks and uncertainties. Our actual results may differ significantly from those projected or suggested in any forward-looking statements. We do not undertake any obligation to release publicly any revisions to such forward-looking statements to reflect events or circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Any number of factors could cause our actual results to differ materially from those contemplated by any forward-looking statements, including, but not limited to, the risks associated with the following:

STANDARD OPERATING FACTORS

• our ability to remain profitable in a very competitive marketplace depends upon our continued ability to attract and retain clients while maintaining our margins, to differentiate our products and services from those of our competitors, and to develop and cross-sell new products and services to our existing clients

• our failure to anticipate and appropriately adapt to changes or trends within the rapidly changing healthcare industry

• changes in applicable laws, rules or regulations, or their interpretation or enforcement, or the enactment of new laws, rules or regulations, which apply to our business practices (past, present or future) or require us to spend significant resources in order to comply or to make significant changes to our business operations

• changes to the healthcare industry designed to manage healthcare costs or alter healthcare financing practices or changes to government policies in general

• uncertainties regarding the implementation of Health Reform Laws

• general economic conditions

• a failure in the security or stability of our technology infrastructure, or the infrastructure of one or more of our key vendors, or a significant failure or disruption in service within our operations or the operations of such vendors

• our failure to execute on, or other issues arising under, certain key client contracts

• significant changes within the pharmacy provider marketplace, including the loss of or adverse change in our relationship with one or more key pharmacy providers

• changes relating to our participation in Medicare Part D, the loss of Medicare Part D eligible members, or our failure to otherwise execute on our strategies related to Medicare Part D

• our failure to effectively execute on strategic transactions or successfully integrate the business operations or achieve the anticipated benefits from any acquired businesses

• a failure to adequately protect confidential health information received and used in our business operations

• uncertainty around realization of the anticipated benefits of the transaction with Medco, including the expected amount and timing of cost savings and operating synergies or difficulty in integrating the businesses of Express Scripts, Inc. and Medco or in retaining clients of the respective companies

• the impact of our debt service obligations on the availability of funds for other business purposes, and the terms of and our required compliance with covenants relating to our indebtedness

• the delay, reduction, suspension or cancellation of government spending or appropriations relating to our business

• the termination, loss, or an unfavorable modification, of our relationship with one or more key pharmaceutical manufacturers, or the significant reduction in payments made or discounts provided by pharmaceutical manufacturers

• changes in industry pricing benchmarks

17

• results in pending and future litigation or other proceedings which could subject us to significant monetary damages or penalties and/or require us to change our business practices, or the costs incurred in connection with such proceedings

• our failure to attract and retain talented employees, or to manage succession and retention for our Chief Executive Officer or other key executives

• other risks described from time to time in our filings with the SEC

These and other relevant factors, including those risk factors in “Part I — Item 1A — Risk Factors” in this Annual Report and any other information included or incorporated by reference in this Report, and information which may be contained in our other filings with the SEC, should be carefully considered when reviewing any forward-looking statement. We note these factors for investors as permitted under the Private Securities Litigation Reform Act of 1995. Investors should understand that it is impossible to predict or identify all such factors or risks. As such, you should not consider either foregoing lists, or the risks identified in our SEC filings, to be a complete discussion of all potential risks or uncertainties.

Item 1A — Risk Factors

General Risk Factors

We operate in a very competitive industry, which could compress our margins and impair our ability to attract and retain clients. Our failure to effectively differentiate our products and services from those of our competitors could magnify the impact of the competitive environment.

We operate in a highly competitive environment and an industry that is subject to significant market pressures brought about by customer demands, legislative and regulatory developments and other market factors. We must remain competitive in order to attract new clients and retain and cross-sell additional products and services to our existing clients. Strong competition in the PBM marketplace has generated greater client demand for lower pricing, increased revenue sharing and enhanced product and service offerings. These competitive factors have historically created pressure on our operating margins and caused many PBMs, including us, to reduce the prices charged for core products and services while sharing a greater portion of the formulary fees and related revenues received from pharmaceutical manufacturers with clients. We cannot assume that positive trends such as lower drug purchasing costs, increased generic usage, drug price inflation, increased rebates, favorable demographics and specialty growth would offset these pressures in the future. Our inability to maintain these positive trends, or failure to identify and implement new ways to mitigate pricing pressures, could negatively impact our ability to attract or retain clients which could negatively impact our margins and have a material adverse effect on our business and results of operations.

In addition, our clients are well informed and organized and can easily move between us and our competitors. Our client contracts are generally three years and our larger clients typically seek competing bids from our competitors prior to contract expiration. These factors together with the impact of competitive pressures could make it difficult for us to attract new clients, retain existing clients and cross-sell additional services, which could materially and adversely affect our business and results of operations.

In order to succeed in the highly competitive PBM marketplace, it is imperative that we maintain a strong reputation as well as differentiate our business offerings by innovating and delivering products and services that demonstrate enhanced value to our clients, particularly in response to market changes from public policy. The negative reputational impact of a significant event, including a failure to execute on client contracts or to successfully integrate the business of ESI and Medco or to otherwise successfully operate the complex structure of our business or otherwise innovate and deliver products and services that demonstrate greater value to our clients, could therefore affect our ability to grow and retain profitable clients which could have a material adverse effect on our business and results of operations.

The managed care industry has undergone periods of substantial consolidation and may continue to consolidate in the future. If one or more of our managed care clients is acquired, and the acquiring entity is not a client, then we may be unable to retain all or a portion of the acquired business. If such acquisitions, individually or in the aggregate, are material, they could have a material adverse effect on our business and results of operations.

The delivery of healthcare-related products and services is an evolving and rapidly changing industry. Our failure to anticipate or appropriately adapt to changes or trends within the industry could have a negative impact on our ability to compete and adversely affect our business and results of operations.

We have designed our business model to compete within the current industry structure. Our client contracts are generally three years and our pharmaceutical manufacturer and retail contracts are typically non-exclusive and terminable on relatively short notice by either party. Any significant shifts in the structure of the PBM industry or the healthcare products and

18

services industry in general could alter the industry dynamics and adversely affect our ability to attract or retain clients. Such industry shifts could result from, among others: a large intra- or inter-industry merger, a new entrant (including the government), a new business model, a general decrease in drug utilization, reduced USPS service or the consolidation of shipping carriers, or the necessary changes or unintended consequences of the federal Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (the “Health Reform Laws”). Our failure to anticipate or appropriately adapt to changes in the industry could negatively impact our competitive position and adversely affect our business and results of operations.

We operate in a complex and rapidly evolving regulatory environment. Changes in applicable laws, rules or regulations, or their interpretation or enforcement, or the enactment of new laws, rules or regulations, could require us to make significant changes to our business operations or result in the imposition of fines or penalties. Further, we may be required to spend significant resources in order to comply with new, changing or existing laws, rules and regulations.

Numerous state and federal laws, rules and regulations affect our business and operations and include, among others, the following:

• healthcare fraud and abuse laws and regulations, which prohibit certain types of payments and referrals as well as false claims made in connection with health benefit programs

• ERISA and related regulations, which regulate many aspects of healthcare plan arrangements

• state legislation regulating PBMs or imposing fiduciary status on PBMs

• consumer protection and unfair trade practice laws and regulations

• network pharmacy access laws, including “any willing provider” and “due process” legislation, that affect aspects of our pharmacy network contracts

• wholesale distributor laws

• legislation imposing benefit plan design restrictions and requirements, which limit how our clients can design their drug benefit plans

• various licensure laws, such as managed care and third-party administrator licensure laws

• drug pricing legislation, including “most favored nation” pricing

• pharmacy laws and regulations

• state insurance regulations applicable to our insurance subsidiaries

• information privacy and security laws and regulations, including those under the HIPAA omnibus rule

• Medicare prescription drug program participation requirements including coverage standards and beneficiary protections

• other Medicare and Medicaid reimbursement regulations, including subrogation

• the federal Patient Protection and Affordable Care Act, as amended by the Health Reform Laws, including regulations applicable to clients operating qualified health plans through the state and federal marketplace (“Health Insurance Exchange”)

• federal laws related to our Department of Defense arrangement

• federal antitrust laws related to our pharmacy, pharmaceutical manufacturer and client relationships

• international laws

These and other regulatory matters are discussed in more detail under “Part I — Item 1 — Business — Government Regulation and Compliance” above.

We believe that we are operating our business in substantial compliance with all existing material legal requirements applicable to us. However, significant uncertainties exist regarding the application of many of these legal requirements to our business. From time to time, state and federal law enforcement agencies and regulatory agencies have initiated investigations or litigation involving certain aspects of our business or our competitors’ businesses and, consequently, we cannot provide any assurance that one or more of these agencies will not interpret or apply these legal requirements in a manner adverse to our business, or, if there is an enforcement action brought against us, that our interpretation would prevail. In addition, there are numerous proposed healthcare laws, rules and regulations at the federal and state levels, many of which could materially affect aspects of our business or adversely affect our results of operations. We are unable to predict whether

19

additional federal or state legislation or regulatory initiatives relating to our business or the healthcare industry in general will be enacted in the future or what effect, if any, such legislation or regulations may have on us. Due to these uncertainties, we may be required to spend significant resources in connection with any such investigation or litigation or to comply with new or existing laws and regulations.

In addition, the laws, rules and regulations to which we are subject, including those related to financial disclosure, are complex and require significant resources to remain compliant. Any substantial non-compliance with such legal and regulatory requirements could result in significant fines and penalties or a restatement of our financial statements, which could adversely affect our business and results of operations.

Various governmental agencies have conducted investigations and audits into certain PBM business practices. Many of these investigations and audits have resulted in other PBMs agreeing to civil penalties, including the payment of money and corporate integrity agreements. We cannot predict what effect, if any, such governmental investigations and audits may ultimately have on us or on the PBM industry in general (see “Part I — Item 3 — Legal Proceedings”). However, we may experience additional government scrutiny and audit activity related to Medco’s government program services, including audits that Accredo Health Group face or may face which result in payment or offset of prior reimbursement from the government.

In 2010, the federal court in the District of Columbia overturned a previously enacted statute by the District of Columbia that purports to declare that a PBM is a fiduciary with respect to its clients (see “Part I — Item 1 — Business — Government Regulation and Compliance — State Fiduciary Legislation”). However, other states are considering but have not yet enacted similar fiduciary statutes, and we cannot predict what effect, if any, these and similar statutes, if enacted, may have on our business and financial results, nor can we predict how other courts may view such laws.

Policies designed to manage healthcare costs or alter healthcare financing practices or changes to government policies in general may adversely impact our business and results of operations.

From time to time, certain legislative and/or regulatory proposals are made which seek to manage the cost of healthcare, including prescription drug cost. Such proposals include “single-payer” government funded healthcare, changes in reimbursement rates, restrictions on access or therapeutic substitution, limits on more efficient delivery channels, taxes on goods and services, price controls on prescription drugs and other significant healthcare reform proposals. In addition, changes to government policies not specifically targeted to the healthcare industry, such as an increase in the corporate tax rate or government spending cuts, could have significant impacts on the PBM marketplace. We are unable to predict whether any such policies or proposals will be enacted, or the specific terms thereof. Certain of these policies or proposals, however, if enacted, could adversely impact our business and results of operations.

The implementation of the Health Reform Laws could have an adverse effect on our business and results of operations.

In March 2010, the federal government enacted the Health Reform Laws, which will be gradually phased in through 2020 (see “Part I — Item 1 — Business — Government Regulation and Compliance — Federal Healthcare Reform”). The Health Reform Laws contain many provisions that directly or indirectly apply to us, our clients, employers and benefit providers, pharmaceutical manufacturers, healthcare providers and others with whom we do business, including:

• PBM disclosure requirements in the context of Medicare Part D and the Health Insurance Exchanges

• new federal regulations applicable to health plans offered by insurance companies, employers and other plan sponsors

• state and federal regulations applicable to health plans offered in the Health Insurance Exchanges

• medical loss ratio requirements, which require insurers to spend a specified percentage of premium revenues on incurred claims or healthcare quality improvements, and require some of our clients to report certain types of PBM proprietary information

• various health insurance taxes and fees

• changes to the calculation of average manufacturer price (“AMP”) of drugs and an increase in the rebate amounts drug manufacturers must pay to states for drugs reimbursed by state Medicaid programs, including through Medicaid managed care organizations

• imposition of new fees on pharmaceutical manufacturers and importers of brand-name prescription drugs

• expansion of the 340B drug discount program, which limits the costs of certain outpatient drugs to qualified health centers and hospitals

20

• risk adjustments, risk corridors and reinsurance requirements that affect certain of our clients

• closing of the so-called donut hole under Medicare Part D by lowering beneficiary coinsurance amounts

• elimination of the tax deduction for employers who receive Medicare Part D retiree drug subsidy payments

• mandated changes to client plan designs

• changes to certain healthcare fraud and abuse laws

The scope and ultimate effect of such provisions on our business remains uncertain and we cannot predict the impact that any interim or final implementation will have on our business and results of operations.

We face risks associated with general economic conditions.

The state of the economy can have a significant impact on our business and results of operations. An unfavorable or uncertain economic environment could significantly and adversely affect our businesses and profitability and generate the following risks to our business:

• clients, employers and other benefit providers served by our clients may reduce or slow the growth of their workforce or covered membership, or may elect to discontinue or diminish provided benefits, which would result in a reduction in the number of members we serve

• consumers may be less willing or able to incur health care related expenses, whether due to personal economic circumstances, reduction in the level of the health care benefit provided to the consumer or otherwise, which would result in lower than anticipated utilization

• our clients, or potential clients, may increase demands and expectations with respect to pricing, rebates or service levels (including with respect to performance guarantees), which would impact margins, or our ability to obtain new clients or retain existing clients

• our clients, or potential clients, may be less willing to purchase additional products and services from us, which would impact our financial performance

Unfavorable and uncertain economic conditions may also cause disruptions in the credit markets which could increase our cost of borrowing or make credit unavailable on acceptable terms to the extent we need additional funds. Such developments may adversely affect our business and results of operations.

Our ability to conduct operations depends on the security and stability of our technology infrastructure as well as the effectiveness of, and our ability to execute, business continuity plans across our operations. A failure in the security of our technology infrastructure or a significant disruption in service within our operations could materially adversely affect our business and results of operations.

We maintain, and are dependent on, a technology infrastructure platform that is essential for many aspects of our business operations. We have many different information systems and it is imperative that we securely store and transmit confidential data, including personal health information, while maintaining the integrity of our confidential information. Any failure to protect against a security breach or a disruption in service could negatively impact our reputation and materially adversely impact our business operations and results of operations. Our technology infrastructure platform requires significant resources to maintain and enhance systems in order to keep pace with rapid technological change as well as evolving industry and regulatory standards. Emerging and advanced security threats, including coordinated attacks, require additional layers of security which may disrupt or impact efficiency of operations. From time to time, we may obtain significant portions of our systems-related or other services or facilities from independent third parties, which may make our operations vulnerable to such third parties’ failure to adequately perform or protect against a security breach or service disruption. In the event we or our vendors experience:

• a malfunction in business processes

• security breaches (including from cyber- or phishing-attacks)

• failure to maintain effective and up-to-date information systems or

• otherwise experience unauthorized or non-compliant actions by any individual

We could incur disruptions to our business operations or negative impacts to patient safety, customer and member disputes, damage to our reputation, exposures to risk of loss, litigation or regulatory violations, increased administrative expenses or other adverse consequences.

21

We operate dispensing pharmacies, call centers, data centers and corporate facilities that depend on the security and stability of our technology infrastructure. Our technology infrastructure could be disrupted by any number of events including a general failure of the technology, malfunction of business process or a disaster or other catastrophic event. In addition, our vendor and supply chain is dependent on a number of different products and third parties and could be disrupted. Such disruptions could, temporarily or indefinitely, significantly reduce, or partially or totally eliminate our ability to process and dispense prescriptions and provide products and services to our clients and members. Any such service disruption at these facilities or to this infrastructure or our failure to implement adequate business continuity and disaster recovery strategies could have a material adverse effect on our business and results of operations.

A substantial portion of our business is concentrated in certain significant client contracts. Our failure to execute on or other issues arising under, such contracts or conditions or trends impacting certain of our key clients could adversely affect our business and results of operations.

As described in greater detail in the discussion of our business in Item 1 above (see “Part I — Item 1 — Business — Clients”), we have long-term contracts with WellPoint, Inc. (“WellPoint”) and the United States Department of Defense (“DoD”). Our top 5 clients, including WellPoint and DoD, collectively represented 38.4% and 39.3% of our revenue during 2013 and 2012, respectively.

On July 21, 2011, Medco announced that its pharmacy benefit services agreement with UnitedHealth Group would not be renewed, although Medco continued to provide services under an agreement, which expired on December 31, 2012. A transition agreement was in place throughout 2013, during which time patients moved in tranches off of the Medco platform.

If one or more of our large clients either terminates or does not renew a contract for any reason or if the provisions of a contract with a large client are modified, renewed or otherwise changed with terms that are less favorable to us, our financial results could be materially adversely affected and we could experience a negative reaction in the investment community resulting in stock price declines or other adverse effects.

If we are not able to replace lost business or margin by generating new sales with comparable operating margins or successfully executing other corporate strategies, our revenues and results of operations could suffer. In addition, if certain of our key clients are negatively impacted by business conditions or other economic trends, or if such clients are acquired, consolidated or otherwise fail to successfully maintain or grow their business, our business and results of operations could be adversely impacted.

If significant changes occur within the pharmacy provider marketplace, or if other issues arise with respect to our pharmacy networks, including the loss of or adverse change in our relationship with one or more key pharmacy providers, our business and financial results could be impaired.

More than 68,000 retail pharmacies, which represent over 95% of all United States retail pharmacies, participated in one or more of our networks at December 31, 2013. The ten largest retail pharmacy chains represent approximately 60% of the total number of stores in our largest network. In certain geographic areas of the United States, our networks may be comprised of higher concentrations of one or more large pharmacy chains. Contracts with retail pharmacies are generally non-exclusive and are terminable on relatively short notice by either party. If one or more of the larger pharmacy chains terminates its relationship with us, or is able to renegotiate terms that are substantially less favorable to us, our members’ access to retail pharmacies and/or our business could be materially adversely affected. In addition, the entry of one or more large pharmacy chains into the PBM business in addition to the current pharmacy chain competitors, or the consolidation of existing pharmacy chains, could increase the likelihood of negative changes in our relationship with such pharmacies. Changes in the overall composition of our pharmacy networks, or reduced pharmacy access under our networks, could have a negative impact on our claims volume and/or our competitiveness in the marketplace, which could cause us to fall short of certain guarantees in our contracts with clients or otherwise impair our business or results of operations.

Regulatory or business changes relating to our participation in Medicare Part D, the loss of Medicare Part D eligible members, or our failure to otherwise execute on our strategies related to Medicare Part D, could adversely impact our business and our results of operations.

Certain of our subsidiaries have been approved to function as a Part D prescription drug plan (“PDP”) sponsor for the purpose of making employer/union-only group waiver plans available for eligible clients and certain of our insurance subsidiaries have been approved by CMS to participate in the Medicare Part D program as a national PDP sponsor that provides direct services to Medicare Part D eligible members. We also provide other products and services in support of our clients’ Medicare Part D plans or federal Retiree Drug Subsidy. We have made, and may be required to make further, substantial investments in the personnel and technology necessary to administer our Medicare Part D strategy and operations. There are many uncertainties about the financial and regulatory risks of participating in the Medicare Part D program, and we can give no assurance that these risks will not materially adversely impact our business and results of operations.

22

Certain of our insurance subsidiaries are subject to various contractual and regulatory compliance requirements associated with participating in Medicare Part D. As insurers organized and licensed under applicable state laws, certain subsidiaries are subject to aspects of state laws regulating the business of insurance in all jurisdictions in which they offer PDP services. As PDP sponsors, certain subsidiaries are required to comply with certain federal Medicare Part D laws and regulations applicable to PDP sponsors. Additionally, the receipt of federal funds made available through the Part D program by us, our affiliates or clients is subject to compliance with the Part D regulations and established laws and regulations governing the federal government’s payment for healthcare goods and services, including the anti-kickback laws and the federal False Claims Act. If material contractual or regulatory non-compliance was to be identified, including, for example, during CMS audits or client audits in cases where we service PDP sponsors, recoupment, monetary penalties and/or applicable sanctions, including suspension of enrollment and marketing or debarment from participation in Medicare programs, could be imposed. Further, the adoption or promulgation of new or more complex regulatory requirements or changes in the interpretation of existing regulatory requirements, in each case, associated with Medicare may require us to incur significant compliance-related costs which could adversely impact our business and our results of operations.

In addition, due to the availability of Medicare Part D, some of our employer clients may stop providing pharmacy benefit coverage to retirees, instead allowing retirees to choose their own Part D plans, which could cause a reduction in utilization for our services. Extensive competition among Medicare Part D plans could also result in the loss of Medicare members by our managed care customers, which would cause a decline in our membership base. Further, certain of our Part D product offerings require premium payment from members for the ongoing benefit, as well as amounts due from CMS, and as a result of the demographics of the calculations, as well as the potential magnitude and timing of settlement for amounts due from CMS, these accounts receivable are subject to billing and realization risk in excess of what is experienced in the core PBM business.

Like many aspects of our business, the administration of the Medicare Part D program is complex and any failure to effectively execute the provisions of the Medicare Part D program may have an adverse effect on our financial position results of operations or cash flows. As discussed above, the Health Reform Laws contain various changes to the Part D program and could have a financial impact on our PDP and our clients’ demand for our other Part D products and services.

We have historically engaged in strategic transactions, including the acquisition of other companies or businesses, and may engage in similar transactions in the future. Our failure to effectively execute on such transactions or to integrate any acquired businesses could adversely impact our business and results of operations. The successful acquisition and integration of any such business will create significant transaction costs and require significant resources and management attention.

We have historically engaged in strategic transactions, including the acquisition of other companies and businesses. These transactions typically involve the integration of core business operations and technology infrastructure platforms that require significant resources and management attention and, among other things, risk client service disruption. A failure or significant delay in the integration process could have a material adverse effect on our client service or our business and results of operations. In addition, such transactions may yield higher operating costs, greater customer attrition or more significant business disruption than anticipated. Further, even if the integration is successful, there can be no assurance that a transaction will result in the realization of the expected benefits of synergies, cost savings, innovation and operational efficiencies, or that any realized benefits will be achieved within the anticipated time frame or an otherwise reasonable period of time.

Strategic transactions, including the pursuit of such transactions, often require us to incur significant up-front costs. These costs are typically non-recurring expenses related to the assessment, due diligence, negotiation and execution of the transaction. We may also incur additional costs to retain key employees as well as transaction fees and costs related to executing our integration plans. Although we would generally pursue the realization of efficiencies related to the integration of a business to offset incremental transaction and acquisition-related costs over time, this net benefit may not be achieved in the near term, or at all.

Our business operations involve the substantial receipt and use of confidential health information concerning individuals and a failure to adequately protect such information could have a material adverse effect on our business and results of operations.

Most of our activities involve the receipt or use of protected health information concerning individuals. We also use aggregated and anonymized data for research and analysis purposes, and in some cases, provide access to such data to pharmaceutical manufacturers and third-party data aggregators and analysts. There is substantial regulation at the federal and state levels addressing the use, disclosure and security of patient identifiable health information. At the federal level, the Health Insurance Portability and Accountability Act of 1996 and the regulations issued thereunder (collectively “HIPAA”) impose extensive requirements governing the transmission, use and disclosure of health information by all participants in health care delivery, including physicians, hospitals, insurers and other payors. Many of these obligations were expanded under the Health Information and Technology for Economic and Clinical Health Act (the “HITECH Act”), passed as part of the American Recovery and Reinvestment Act of 2009. Failure to comply with standards issued pursuant to federal or state statutes or regulations may result in criminal penalties and civil sanctions. In addition to these regulations, future regulations and

23

legislation that severely restricts or prohibits our use of patient identifiable or other information could limit our ability to use information critical to the operation of our business. Furthermore, if we violate a patient’s privacy or are found to have violated any federal or state statute or regulation with regard to confidentiality or dissemination or use of protected health information, we could be liable for significant damages, fines or penalties and suffer reputational harm, any one of which could have a material adverse effect on our business and results of operations.

Difficulty in integrating the business of Express Scripts, Inc. and Medco or uncertainty around realization of the anticipated benefits of the Merger, including the expected amount and timing of cost savings and operating synergies and difficulty in retaining clients of the respective companies, could have a material adverse effect on our business and results of operations as well as cause a decline of our stock price.

The success of the Merger depends, in part, on our ability to fully realize the anticipated benefits from the combination, including synergies, cost savings, innovation and operational efficiencies. If we are unable to fully achieve these objectives, the anticipated benefits may not be fully realized or at all, and the value of our common stock may decline.

The combination of Medco’s business and ESI’s business has been, and will continue to be, a complex, costly and time-consuming process. The ongoing integration of the two companies has resulted, and may continue to result, in challenges, some of which may be material, including, without limitation:

• the diversion of management’s attention from ongoing business concerns and performance shortfalls at one or both of the companies as a result of the devotion of management’s attention to the completion of the integration

• managing a larger combined company

• the possibility of faulty assumptions underlying expectations regarding the integration process

• retaining existing clients and attracting new clients on profitable terms

• retaining long-term client relationships which comprise a substantial portion of our revenues

• unanticipated issues in integrating information technology, communications and other systems

• managing tax costs or inefficiencies associated with integrating the operations of the combined company

• unforeseen expenses associated with the Merger

Any one or more of these factors could result in increased costs, decreases in the amount of expected revenues, diversion of management’s time and energy or other negative impacts on the business. Delays or issues encountered in the ongoing integration process could have a material adverse effect on the revenues, expenses, operating results and financial condition of the combined company and there can be no assurance that we will fully realize these anticipated benefits.

Further, we have incurred and will continue to incur significant costs in connection with the integration process. The substantial majority of these costs are non-recurring expenses related to the facilities and systems consolidation costs. We may also incur other unanticipated integration costs as well as costs to maintain employee morale and additional costs related to formulating and revising integration plans.

If, among other things, we are unable to fully achieve the expected growth in earnings, or if our operational cost savings estimates are not fully realized, or if the integration costs are greater than expected, the market price of our common stock may decline. The market price also may decline if we do not fully achieve the perceived benefits of the Merger as rapidly or to the extent anticipated by financial or industry analysts or if the financial results of the combined company are not consistent with the expectations of financial or industry analysts.

Our debt service obligations reduce the funds available for other business purposes, and the terms and covenants relating to our indebtedness could adversely impact our financial performance and liquidity.

We currently have debt outstanding (see summary of indebtedness within Note 7 - Financing), including indebtedness of ESI and Medco guaranteed by us. Our debt service obligations reduce the funds available for other business purposes. Increases in interest rates on variable rate indebtedness would increase our interest expense and could materially adversely affect our financial results. At December 31, 2013, we had $2,000.0 million of gross obligations, or $8.6 million net of cash, which were subject to variable rates of interest under our credit agreement. A hypothetical increase in interest rates of 1% would result in an increase in annual interest expense of approximately $20.0 million (pre-tax), assuming that obligations subject to variable interest rates remained constant.

We are subject to risks normally associated with debt financing, such as the insufficiency of cash flow to meet required debt service payment obligations and the inability to refinance existing indebtedness. In addition, certain of our debt instruments contain covenants which include limitations on our ability to incur additional indebtedness, create or permit liens

24

on assets, and engage in mergers, consolidations or disposals. The covenants under our credit agreement also include, among others, a minimum interest coverage ratio and a maximum leverage ratio. If we fail to satisfy one or more of the covenants under our credit agreement or the senior notes indentures, we would be in default under the credit agreement and/or the senior notes indentures, and may be required to repay such debt with capital from other sources or otherwise not be able to draw down against our revolving credit facility. Under such circumstances, other sources of capital may not be available to us, or be available only on unattractive terms. See Note 7 - Financing to our consolidated financial statements included in Part II — Item 8 of this Annual Report on Form 10-K.

A delay, reduction, suspension or cancellation of government spending or appropriations could have a material adverse effect on our business and results of operations.

Certain of our revenues are ultimately sourced from government spending and appropriated funds. The failure to provide for continued appropriations or regular ongoing scheduled payments to us could have a material adverse effect on our business and results of operations.

If we lose our relationship with one or more key pharmaceutical manufacturers, or if the payments made or discounts provided by pharmaceutical manufacturers decline, our business and results of operations could be adversely affected.

We maintain contractual relationships with numerous pharmaceutical manufacturers which provide us with, among other things:

• discounts for drugs we purchase to be dispensed from our home delivery pharmacies

• rebates based upon distributions of drugs from our home delivery pharmacies and through pharmacies in our retail networks

• administrative fees for managing rebate programs, including the development and maintenance of formularies which include the particular manufacturer’s products

• access to limited distribution specialty pharmaceuticals

If several of these contractual relationships are terminated or materially altered by the pharmaceutical manufacturers or we are otherwise unable to renew such contracts or enter into similar contracts on favorable terms, our business and results of operations could be materially adversely affected. In addition, formulary fee programs have been the subject of debate in federal and state legislatures and various other public and governmental forums. Adoption of new laws, rules or regulations or changes in, or new interpretations of, existing laws, rules or regulations, relating to any of these programs could materially adversely affect our business and results of operations.

Changes in industry pricing benchmarks could materially impact our financial performance.

Contracts in the prescription drug industry, including our contracts with retail pharmacy networks and with PBM and specialty pharmacy clients, generally use “average wholesale price” or “AWP,” which is published by a third party as a benchmark to establish pricing for prescription drugs. In the event that AWP is no longer published by third parties or if we adopt other pricing benchmarks for establishing prices within the industry, we can give no assurance that the short- or long-term impact of such changes to industry pricing benchmarks will not have a material adverse effect on our business and results of operations.

Legislation and other regulations affecting drug prices are discussed in more detail under “Part I — Item 1 — Business — Government Regulation and Compliance — Legislation and Regulation Affecting Drug Prices” above.

Pending and future litigation or other proceedings could subject us to significant monetary damages or penalties and/or require us to change our business practices, which could have a material adverse effect on our business and results of operations.

We are subject to risks relating to litigation, enforcement action, regulatory proceedings, government inquiries and investigations and other similar actions in connection with our business operations, including without limitation the dispensing of pharmaceutical products by our specialty and home delivery pharmacies, services rendered in connection with our disease management offering, our pharmaceutical services operations, pharmacy benefit management services and mergers and acquisitions activity. A list of the significant proceedings pending against us is included under “Part I — Item 3 — Legal Proceedings,” including certain proceedings that purport to be class action lawsuits. These proceedings seek unspecified monetary damages and/or equitable relief. While we believe these proceedings are without merit and intend to contest them vigorously, we cannot predict with certainty the outcome of any such proceedings. If one or more of these proceedings has an unfavorable outcome, we cannot provide any assurance that it would not have a material adverse effect on our business and results of operations, including our ability to attract and retain clients as a result of the negative reputational impact of such an

25

outcome. Further, while certain costs are covered by insurance, we may incur uninsured costs that are material to our financial performance in the defense of such proceedings.

Commercial liability insurance coverage continues to be difficult to obtain for companies in our business sector, as such insurance can cause unexpected volatility in premiums and/or retention requirements dictated by insurance carriers. We have established certain self-insurance accruals to cover anticipated losses within our retained liability for previously reported claims and the cost to defend these claims. However, there can be no assurance that such accruals will cover actual losses or that general, professional, managed care errors and omissions, and/or other liability insurance coverage will be reasonably available in the future or such insurance coverage, together with our self-insurance accruals, will be adequate to cover future claims. A claim, or claims, in excess of our insurance coverage could have a material adverse effect on our business and results of operations.

We face significant competition in attracting and retaining talented employees. Further, managing succession and retention for our Chief Executive Officer and other key executives is critical to our success, and our failure to do so could have an adverse impact on our future performance.

We believe that our ability to attract and retain a qualified and experienced workforce is essential to meet current and future goals and objectives. There is no guarantee that we will be able to attract and retain such employees or that competition among potential employers will not result in increased salaries or other benefits. An inability to retain existing employees or attract additional employees could have a material adverse effect on our business and results of operations.

Our failure to adequately plan for succession of our Chief Executive Officer, senior management and other key employees or the failure of key employees to successfully transition into new roles could have a material adverse effect on our business and results of operations. While we have succession plans in place and employment arrangements with certain key executives, these do not guarantee that the services of these executives will continue to be available to us.

Item 1B — Unresolved Staff Comments

There are no unresolved written comments that were received from the SEC Staff 180 days or more before the end of our fiscal year relating to our periodic or current reports under the Securities Exchange Act of 1934.

Item 2 — Properties

We operate our PBM and Other Business Operations segments out of leased and owned facilities throughout the United States and Canada. As of December 31, 2013, our PBM segment consisted of 62 owned or leased facilities throughout the United States and three owned or leased facilities throughout Canada. For our Other Business Operations segment, as of December 31, 2013, we owned or leased 50 facilities throughout the United States, and owned or leased five facilities in Europe and Canada. Our existing facilities from continuing operations comprise approximately 6.1 million square feet in the aggregate.

Our St. Louis, Missouri facility houses our corporate headquarters offices and accommodates our executive and corporate functions.

Our PBM home delivery pharmacy operations consist of twelve order processing pharmacies that are located throughout the United States, as well as seven contact centers and eight mail order dispensing pharmacies. We also have ten Specialty Pharmacy home delivery pharmacies and 33 specialty branch pharmacies.

In the first quarter of 2011, we ceased fulfilling prescriptions from our home delivery dispensing pharmacy in Bensalem, Pennsylvania. We are currently in the process of closing this facility, which is scheduled to be completed in 2014.

In 2013, we began construction of a new office facility in St. Louis, Missouri as well as a new high volume pharmacy fulfillment facility in Florence, New Jersey. These new facilities are scheduled to be completed in 2014. We anticipate total capital expenditures of approximately $15.0 million for the new office facility and total capital expenditures of approximately $68.0 million for the new high volume pharmacy fulfillment facility.

We began improvement on two new data centers in Chicago, Illinois and Piscataway, New Jersey. Both locations are scheduled to be completed in 2015 and we anticipate total capital expenditures of approximately $75.0 million.

We believe our facilities generally have been well maintained, are in good operating condition and have adequate capacity to meet our current business needs.

26

Item 3 – Legal Proceedings

We and/or our subsidiaries are defendants in a number of lawsuits. We cannot ascertain with any certainty at this time the monetary damages or injunctive relief that any of the plaintiffs may recover. We also cannot provide any assurance that the outcome of any of these matters, or some number of them in the aggregate, will not be materially adverse to our financial condition, results of operations, cash flows or business prospects. In addition, the expenses of defending these cases may have a material adverse effect on our financial results.

These matters are:

• Multi-District Litigation - On April 29, 2005, the Judicial Panel on Multi-District Litigation transferred a number of previously disclosed cases to the Eastern District of Missouri for coordinated or consolidated pretrial proceedings, including the following remaining cases: Lynch v. National Prescription Administrators, et al. (United States District Court for the Southern District of New York, Case No. 03 CV 1303) (filed February 26, 2003); Wagner et al. v. Express Scripts (United States District Court for the Southern District of New York, Case No.04cv01018 (WHP)) (filed December 31, 2003); Scheuerman, et al v. Express Scripts (United States District Court for the Southern District of New York, Case No.04-CV-0626 (FIS) (RFT)) (filed April 27, 2004); Correction Officers’ Benevolent Association of the City of New York, et al. v. Express Scripts, Inc. (United States District Court for the Southern District of New York, Case No.04-Civ-7098 (WHP)) (filed August 5, 2004); 1978 Retired Construction Workers Benefit Plan (Nagle) v. Express Scripts, Inc. (United States District Court for the Eastern District of Missouri, Civil Action No. 4:06-CV01156) (filed August 1, 2006); Fulton Fish Market Welfare Fund (Circillo) v. Express Scripts, Inc. (United States District Court for the Eastern District of Missouri, Civil Action No. 4:06-cv-01458) (filed October 3, 2006); Philadelphia Corporation for the Aging v. Benecard Services, Inc., et al. (United States District Court for the Eastern District of Pennsylvania, Civil Action No. 06CV2331) (filed June 2, 2006); Local 153 Health Fund, et al. v. Express Scripts Inc. and ESI Mail Pharmacy Service, Inc. (United States District Court for the Eastern District of Missouri, Case No.B05-1004036) (filed May 27, 2005); and Brynien, et al. v. Express Scripts, Inc. and ESI Mail Services, Inc. (United States District Court for the Northern District of New York, Case No. 1:08-cv-323) (filed February 18, 2008). Under these cases, the plaintiffs assert that certain of the business practices of Express Scripts, Inc. and its subsidiaries (for purposes of this Item 3,“ESI”), including those relating to ESI’s contracts with pharmaceutical manufacturers for retrospective discounts on pharmaceuticals and those related to ESI’s retail pharmacy network contracts, constitute violations of various legal obligations including fiduciary duties under ERISA, common law fiduciary duties, state common law, state consumer protection statutes, breach of contract, and deceptive trade practices. The putative classes consist of both ERISA and non-ERISA health benefit plans as well as beneficiaries. The various complaints seek money damages and injunctive relief. On July 30, 2008, the plaintiffs’ motion for class certification of certain of the ERISA plans for which we were the PBM was denied by the court in its entirety. Additionally, ESI’s motion for partial summary judgment on the issue of our ERISA fiduciary status was granted in part in Minshew v. Express Scripts, Inc., et al. (United States District Court for the Eastern District of Missouri, No. 4:02-cv-1503-HEA) (filed December 12, 2001), which was subsequently dismissed on July 21, 2011. The court found that ESI was not an ERISA fiduciary with respect to MAC (generic drug) pricing, selecting the source for AWP (Average Wholesale Price) pricing, establishing formularies and negotiating rebates, or interest earned on rebates before the payment of the contracted client share. The court, in partially granting plaintiffs’ motion for summary judgment, found that ESI was an ERISA fiduciary only with respect to the calculation of certain amounts due to clients under a therapeutic substitution program that is no longer in effect. On December 18, 2009, ESI filed a motion for partial summary judgment on the remaining ERISA claims and breach of contract claims on the cases brought against ESI on behalf of ERISA plans. On February 16, 2010, in accordance with the schedule under the case management order, plaintiffs in the Correction Officers and Lynch matters filed a motion for summary judgment alleging that National Prescription Administrators (NPA) was a fiduciary to the plaintiffs and breached its fiduciary duty. Plaintiffs also filed a class certification motion on behalf of self-funded non-ERISA plans residing in New York, New Jersey, and Pennsylvania for which NPA was the PBM and which used the NPASelect Formulary from January 1, 1996 through April 13, 2002. On July 2, 2010, ESI filed a motion for partial summary judgment as to certain non-ERISA claims being made in various cases. On January 28, 2011, NPA filed a cross motion for summary judgment seeking a ruling that it was not a fiduciary under common law. We are awaiting the court’s ruling on these pending motions. Settlement was reached in Fulton Fish, Philadelphia Corporation, and 1978 Retired Construction Workers and these cases were dismissed on August 15, 2013.

• Jerry Beeman, et al. v. Caremark, et al. (United States District Court for the Central District of California, Case No.021327) (filed December 12, 2002). A complaint was filed against ESI and NextRX LLC f/k/a Anthem Prescription Management LLC and several other pharmacy benefit management companies by several California pharmacies as a putative class action, alleging rights to sue as a private attorney general under California law.

27

Plaintiffs allege that ESI and the other defendants failed to comply with statutory obligations under California Civil Code Section 2527 to provide California clients with the results of a bi-annual survey of retail drug prices. On July 12, 2004, the case was dismissed with prejudice on the grounds that the plaintiffs lacked standing to bring the action. On June 2, 2006, the United States Court of Appeals for the Ninth Circuit reversed the district court's opinion on standing and remanded the case to the district court. The district court’s denial of defendants’ motion to dismiss on first amendment constitutionality grounds was appealed to the Ninth Circuit as discussed further below. Plaintiffs have filed a motion for class certification, but that motion has not been briefed pending the outcome of the appeal. On July 19, 2011, the Ninth Circuit affirmed the district court’s denial of defendants’ motion to dismiss. On August 16, 2011, ESI filed a petition for rehearing en banc requesting the Ninth Circuit reconsider its ruling on defendants’ motion to dismiss, which was granted on October 31, 2011. On June 6, 2012, an en banc panel of the Ninth Circuit Court of Appeals issued a decision certifying the question of constitutionality of California Civil Code Section 2527 to the California Supreme Court, requesting the Supreme Court of California to consider the issue and make a ruling. On July 18, 2012, the California Supreme Court granted the certification request. On December 19, 2013, the California Supreme Court held that California Civil Code Section 2527 does not infringe upon state constitutional free speech protections. On December 23, 2013, the Company provided notice of that decision to the United States Court of Appeals for the Ninth Circuit and requested the Ninth Circuit to decide whether California Civil Code Section 2527 violates the federal constitution’s free speech protections. On January 14, 2014, plaintiffs filed a motion requesting the Ninth Circuit to strike our request to rule on the federal constitutional issues and instead adopt the California Supreme Court’s decision. On January 29, 2014, the Ninth Circuit en banc panel issued a ruling vacating the prior panel opinion and remanded the case to the original Ninth Circuit three-judge panel to either consider the federal constitutional issues or remand the case to the district court.

• In re: PBM Antitrust Litigation (United States District Court for the Eastern District of Pennsylvania, Civ. No. 2:06-MD-1782-JF). In August 2003, Brady Enterprises, Inc., et al. v. Medco Health Solutions, Inc. (United States District Court for the Eastern District of Pennsylvania, Civ. No. 2:03-4730) was filed against Merck & Co., Inc. (for purposes of this Item 3,“Merck”) and Medco Health Solutions, Inc. (for purposes of this Item 3, “Medco”). Plaintiffs moved for class certification to represent a national class of retail pharmacies and allege that Medco conspired with, acted as the common agent for, and used the combined bargaining power of plan sponsors to restrain competition in the market for the dispensing and sale of prescription drugs. Plaintiffs allege that, through conspiracy, Medco has engaged in various forms of anticompetitive conduct including, among other things, setting artificially low pharmacy reimbursement rates. Plaintiffs assert claims for violation of the Sherman Act and seek treble damages and injunctive relief. North Jackson Pharmacy, Inc., et al. v. Medco Health Solutions, Inc., et al.(United States District Court for the Northern District of Alabama, Civil Action No. 2:06-MD-1782-JF), consolidated with North Jackson Pharmacy, Inc., et al. v. Express Scripts, Inc., et al. (United States District Court for the Northern District of Alabama, Civil Action No. CV-03-B-2696-NE) (filed October 1, 2003). This case purports to be a class action against ESI and Medco on behalf of independent pharmacies within the United States. The complaint alleges that certain of ESI’s and Medco’s business practices violate the Sherman Antitrust Act. Plaintiffs seek unspecified monetary damages (including treble damages) and injunctive relief. Plaintiffs’ motion for class certification against ESI and Medco was granted on March 3, 2006. ESI filed a motion to decertify the class on January 16, 2007, which has been fully briefed and argued. The case remained dormant until April 19, 2011, when it was reassigned to a new judge and the parties were ordered to submit supplemental briefing on the issue of class certification. Supplemental briefing was completed on August 26, 2011. Oral argument of all the class certification motions was heard on January 26, 2012, and the court took ESI’s motion under submission. Mike’s Medical Center Pharmacy, et al. v. Medco Health Solutions, Inc., et al. (United States District Court for the Northern District of California, Civ. No. 3:05-5108) (filed December 9, 2005) was filed against Medco and Merck. Plaintiffs seek to represent a class of all pharmacies and pharmacists that contracted with Medco and California pharmacies that indirectly purchased prescription drugs from Merck and make factual allegations similar to those in the Alameda Drug Companyaction discussed below. Plaintiffs assert claims for violation of the Sherman Act, California antitrust law and California law prohibiting unfair business practices. Relief demanded includes, among other things, treble damages, restitution, disgorgement of unlawfully obtained profits and injunctive relief. The Brady Enterprises, North Jackson Pharmacy, and Mike’s Medical Center Pharmacy cases were transferred to the United States District Court for the Eastern District of Pennsylvania before the Judicial Panel on Multi-District Litigation on August 24, 2006.

• Alameda Drug Company, Inc., et al. v. Medco Health Solutions, Inc., et al. (Case No. CGC-04-428109, Superior Court of San Francisco, California) (filed January 20, 2004). Plaintiffs filed this lawsuit against Medco and Merck seeking certification of a class of all California pharmacies that contracted with Medco and that indirectly purchased prescription drugs from Merck. Plaintiffs allege, among other things, that since at least the expiration of a 1995 consent injunction entered by the United States District Court for the Northern District of California, Medco failed to maintain an Open Formulary (as defined in the consent injunction), and that Medco and Merck failed to prevent nonpublic information received from competitors of Medco and Merck from being disclosed to each other. Plaintiffs

28

further claim that, as a result of these alleged practices, Medco increased its market share and artificially reduced the level of reimbursement to the retail pharmacy class members and that the prices of prescription drugs from Merck and other pharmaceutical manufacturers that do business with Medco were fixed above competitive levels. Plaintiffs assert claims for violation of California antitrust law and California law prohibiting unfair business practices and assert that Medco acted as a purchasing agent for its plan sponsor customers in order to suppress competition. Plaintiffs demand, among other things, compensatory damages, restitution, disgorgement of unlawfully obtained profits and injunctive relief. This case was stayed pending a ruling on the class certification issues pending before the court in the consolidated action, In re: PBM Antitrust Litigation, discussed above. On November 1, 2013, plaintiffs filed an unopposed request for dismissal that was granted without prejudice by the Superior Court of San Francisco on December 20, 2013.

• United States of America ex. rel. Lucas W. Matheny and Deborah Loveland vs. Medco Health Solutions, Inc., et al.(United States District Court for the Southern District of Florida, Cause No. 08-14201-CIV-Graham/Lynch) (unsealed March 10, 2010). This qui tam matter relates to Medco's former subsidiary, PolyMedica Corporation and its subsidiaries (“PolyMedica”), and the government declined to intervene. The case is proceeding as a civil lawsuit and the complaint alleges that PolyMedica violated the False Claims Act through accounting practices of applying invoice payments to accounts receivable. On July 21, 2010, the United States District Court for the Southern District of Florida dismissed the action without prejudice. Relators filed an amended complaint that was dismissed with prejudice on October 22, 2010. Relators appealed the dismissal of two counts of the complaint and, on February 22, 2012, the Eleventh Circuit Court of Appeals reversed the dismissal and directed the United States District Court for the Southern District of Florida to reinstate those two claims. On December 3, 2012, Medco sold PolyMedica, including all assets and liabilities, to FGST Investments, Inc. On February 15, 2013, ATLS Acquisition LLC, a holding company, and PolyMedica(ATLS Acquisition LLC and PolyMedica are collectively referred to as “Debtors”), filed for Chapter 11 bankruptcy protection in cases styled In re ATLS Acquisition, et al. (United States Bankruptcy Court, District of Delaware, Case No. 13-10262). The bankruptcy action resulted in an automatic stay of this case as it relates to PolyMedica. On May 10, 2013, the United States Bankruptcy Court for the District of Delaware entered an order extending the automatic stay of the bankruptcy protection to include non-debtor defendants Medco, Arlene Perazella and Carl Dolan. On May 14, 2013, the United States District Court for the Southern District of Florida entered an order acknowledging the stay, closing the case for administrative purposes pending the bankruptcy action, and denying all motions as moot. On July 15, 2013, the United States Bankruptcy Court entered an order requiring relators to file proofs of claim by July 24, 2013, and setting relators' claims for a bench trial in the bankruptcy action on November 4, 2013. On July 17, 2013, relators appealed the bankruptcy court's order to the United States District Court for the District of Delaware and filed a motion to stay the bankruptcy court's deadlines to file proofs of claim, as well as the bench trial, pending the appeal. On July 22, 2013, relators filed a motion to withdraw their adversary proceeding in the bankruptcy court, requesting jurisdiction be placed in the United States District Court for either the District of Delaware or the Southern District of Florida. On August 2, 2013, the United States Bankruptcy Court for the District of Delaware denied relators' motion to stay proceedings. On September 5, 2013, Debtors filed a motion for summary judgment on relators’ claims. On February 6, 2014, the United States Bankruptcy Court for the District of Delaware granted Debtors’ motion for summary judgment in full.

• United States ex rel. David Morgan v. Express Scripts, Inc., First Databank, Inc., Amerisource Bergen Corp., Cardinal Health, Inc., Caremark, Inc., McKesson Corp., Medco Health Solutions, Inc., Medi-Span, and John Doe Corporation 1-20, (United States District Court for the District of New Jersey, Case No. 05-cv-1714) (unsealed December 21, 2012). This is a qui tam lawsuit in which the government declined to intervene against defendants. Morgan, the qui tam relator, served the third amended complaint on the ESI and Medco on January 3, 2013. Morgan alleges claims under the federal False Claims Act and the false claims acts of twenty-two states. The allegations asserted deal primarily with an alleged conspiracy among other defendants to inflate the published average wholesale price (“AWP”) of certain drugs. Morgan generally alleges that ESI and Medco were aware of the alleged AWP inflation and submitted false claims to the government, or caused false claims to be submitted to the government, by failing to disclose the alleged AWP inflationto their government health care program clients in violation of an alleged fiduciary duty and/or in violation of alleged contractual obligations. Morgan also alleges that ESI and Medco failed to properly process and/or adjudicate claims for payment for prescription drugs dispensed to federal healthcare beneficiaries, which allegedly resulted in the submission to the government of false claims for payment. On April 16, 2013, ESI and Medco filed a motion to dismiss the third amended complaint arguing that Morgan failed to plead his allegations with sufficient particularity to satisfy Federal Rules of Civil Procedure 9(b) and 12(b)(6), that he lacks standing to bring independent claims for breach of contract and fiduciary duty, and that Morgan is not an original source of the allegations because there has been prior public disclosure of his allegations. On September 7, 2013, Morgan filed an opposition to the motion to dismiss. On December 9, 2013, the United States District Court for the District of New Jersey entered an order granting ESI’s and Medco’s motions to dismiss Morgan’s third amended complaint. On January 6, 2014, Morgan filed a notice of appeal to the United States Court of Appeals for the Third Circuit.

29

• United States ex rel. Steve Greenfield, et al. v. Medco Health Solutions, Inc., Accredo Health Group, Inc., and Hemophilia Health Services, Inc., (United States District Court for the District of New Jersey, No. 1:12-cv-522) (unsealed February 20, 2013). This qui tam case was filed under seal in January 2012 and the government declined to intervene in December 2012. The second amended complaint alleges that defendants Medco, Accredo Health Group, Inc. (for purposes of this Item 3, “Accredo”) and Hemophilia Health Services, Inc. violated the federal False Claims Act, the Anti-Kickback Statute, and various state and local false claims statutes when they made charitable contributions to non-profit organizations supporting hemophilia patients that were allegedly improper rewards or inducements for referrals of hemophilia patients to Accredo's pharmacy services. The second amended complaint further alleges that Accredo gave gifts to patients and/or their families that were in excess of the “nominal” gifts allegedly allowed under the Civil Monetary Penalty Statute and were allegedly improper rewards or inducements for the use of Accredo's pharmacy services. On May 17, 2013, defendants filed a motion to dismiss the second amended complaint, which Greenfield opposed in briefings filed on June 17, 2013. On December 30, 2013, the United States District Court for the District of New Jersey granted defendants’ motion to dismiss relating to Greenfield’s federal claims, declined to exercise jurisdiction over his state law claims, and provided Greenfield thirty days to file a third amended complaint. On January 28, 2014, Greenfield filed a third amended complaint in which he asserts claims similar to those pled in the second amended complaint, but alleges that Accredo gave gifts to patients and/or their families in violation of the federal Anti-Kickback Statute, as opposed to the Civil Monetary Penalty Statute as previously pled.

• United States ex rel. David M. Kester, et al. v. Novartis Pharmaceuticals Corp., Accredo Health Group, Inc., Amerisource Bergen Corp., BioScrip Corp., CuraScript, Inc., CVS Caremark Corp., Express Scripts, Medco Health Solutions, Inc., and Walgreens Company(United States District Court for the Southern District of New York, Case No. 1:11-cv-08196-CM) (unsealed January 8, 2014). This qui tam case was filed under seal in April 2013. The federal government intervened against defendants Novartis Pharmaceuticals Corp. (“Novartis”) and BioScrip, Inc. (“BioScrip”), and declined to intervene against the remaining defendants, including Express Scripts [sic], Medco, Accredo and CuraScript, Inc. (“CuraScript”). On January 8, 2014, the United States District Court ordered Kester to file any second amended complaint by January 30, 2014. On January 30, 2014, Kester filed a second amended complaint against Accredoand CuraScriptand alleges defendants violated the Anti-Kickback Statute, the federal False Claims Act, and the false claims acts of twenty-seven states in connection with rebates and discounts provided in various contracts with Novartis involving the following drugs: Exjade, Gleevec, Tasigna, and TOBI. Kester dismissed Express Scripts [sic] and Medco from the lawsuit.

• In July 2011, Medco received a subpoena duces tecum from the United States Department of Justice, District of Delaware, requesting information from Medco regarding its arrangements with Astra Zeneca concerning four Astra Zeneca drugs. Medco is cooperating with the inquiry. The Company is not able to predict with certainty the timing or outcome of this matter.

• On October 1, 2012, Accredo received a subpoena duces tecum from the United States Department of Justice, Southern District of New York, requesting information from Accredo concerning its arrangements with Novartis Pharmaceuticals Corporation pertaining to the drug Exjade. The Company completed a production of documents and information to the government in June 2013. This subpoena related to the qui tam lawsuit reported above, United States ex rel. David M. Kester, et al., in which the government declined to intervene against the Company.

In addition to the foregoing matters, in the ordinary course of our business, there have arisen various legal proceedings, investigations or claims now pending against us or our subsidiaries. The effect of these actions on future financial results is not subject to reasonable estimation because the proceedings are in early stages and/or considerable uncertainty exists about the outcomes. Where insurance coverage is not available for such claims, or in our judgment, is not cost-effective, we maintain self-insurance accruals to reduce our exposure to future legal costs, settlements and judgments related to uninsured claims. Our self-insured accruals are based upon estimates of the aggregate liability for the costs of uninsured claims incurred and the retained portion of insured claims using certain actuarial assumptions followed in the insurance industry and our historical experience. It is not possible to predict with certainty the outcome of these claims, and we can give no assurance that any losses in excess of our insurance and any self-insurance accruals will not be material.

Item 4 — Mine Safety Disclosures

Not applicable.

30

PART II

Item 5 — Market For Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Price of and Dividends on the Registrant’s Common Equity and Related Stockholder Matters

Market Information. Our common stock is traded on the Nasdaq Global Select Market (“Nasdaq”) under the symbol “ESRX.” The high and low prices, as reported by the Nasdaq, are set forth below for the periods indicated. Note that prices for the period before April 2, 2012 relate to the common stock of ESI and the prices for the period after April 2, 2012 relate to the common stock of Express Scripts.

	Fiscal Year 2013				Fiscal Year 2012
Common Stock	High		Low		High		Low
First Quarter	$	60.08	$	53.05	$	55.34	$	45.66
Second Quarter	64.08		54.57		58.98		50.31
Third Quarter	67.66		60.80		64.46		53.61
Fourth Quarter	70.79		59.20		66.06		49.79

Holders. As of January 15, 2014, there were 56,648 stockholders of record of our common stock. We estimate that there are approximately 708,637 beneficial owners of our common stock.

Dividends. The Board of Directors has not declared any cash dividends on our common stock since our initial public offering and does not currently intend to declare any cash dividends in the foreseeable future.

Recent Sales of Unregistered Securities

None.

Issuer Purchases of Equity Securities

The following is a summary of our stock repurchasing activity during the three months ended December 31, 2013 (share data in millions):

Period	Total number of shares purchased	Average price paid per share			Total number of shares purchased as part of a publicly announced program	Maximum number of shares that may yet be  purchased under the program
10/1/2013 - 10/31/2013	1.3	$	62.27		1.3	50.0
11/1/2013 - 11/30/2013	13.6	65.20			13.6	36.4
12/1/2013 - 12/31/2013	20.6	67.16		(1)	20.6	15.8	(2)
Fourth Quarter 2013 Total	35.5	$	66.23	(1)	35.5

(1) Includes the average price paid per share for the 20.1 million shares received by the Company on December 9, 2013 under the 2013 ASR Program. The final price per share paid for the shares will be determined based on the forward price determined in accordance with the 2013 ASR Agreement. See Note 9 - Common stock for further information regarding the 2013 ASR Program and the 2013 ASR Agreement. In December 2013, the Company additionally repurchased 0.5 million shares on the open market with an average price of $67.02 per share. For the fourth quarter of 2013, the average price of shares purchased in the open market, excluding the 2013 ASR Program shares, was $65.01 per share.

(2) Excludes the effect of shares that may be delivered upon the settlement of the 2013 ASR Program. In the event the Company will deliver shares upon such settlement, the number of shares that remain available to be repurchased will increase.

31

The repurchases disclosed in this table were made pursuant to the share repurchase program announced on March 6, 2013 (the “2013 Share Repurchase Program”), which authorizes the repurchase of up to 75.0 million shares (as adjusted for any subsequent stock split, stock dividend or similar transaction) of the Company’s common stock. There is no limit on the duration of the 2013 Share Repurchase Program. Current year repurchases were funded through internally generated cash. As of December 31, 2013, there were 15.8 million shares remaining under the 2013 Share Repurchase Program (excluding the effect of any additional shares that may be delivered under the 2013 ASR Program). Additional share repurchases, if any, will be made in such amounts and at such times as we deem appropriate based upon prevailing market and business conditions and other factors.

32

Item 6 — Selected Financial Data

The following selected financial data should be read in conjunction with our consolidated financial statements, including the related notes, and “Part II — Item 7 — Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Results for the year ended December 31, 2012 have been adjusted for the discontinued operations of our acute infusion therapies line of business. Discontinued operations as of December 31, 2012 also include portions of our United BioSource LLC (“UBC”) line of business, Europa Apotheek Venlo B.V. (“EAV”) and our European operations. Discontinued operations as of December 31, 2010 and 2009 include Phoenix Marketing Group (“PMG”).

(in millions, except per share data)	2013			2012(1)			2011			2010			2009(2)
Statement of Operations Data (for the Year Ended December 31):
Revenues(3)	$	104,098.8		$	93,714.3		$	46,128.3		$	44,973.2		$	24,722.3
Cost of revenues(3)	95,966.4			86,402.4			42,918.4			42,015.0			22,298.3
Gross profit	8,132.4			7,311.9			3,209.9			2,958.2			2,424.0
Selling, general and administrative	4,580.7			4,518.0			895.5			887.3			926.5
Operating income	3,551.7			2,793.9			2,314.4			2,070.9			1,497.5
Other expense, net	(521.4		)	(593.5		)	(287.3		)	(162.2		)	(189.1		)
Income before income taxes	3,030.3			2,200.4			2,027.1			1,908.7			1,308.4
Provision for income taxes	1,104.0			838.0			748.6			704.1			481.8
Net income from continuing operations	1,926.3			1,362.4			1,278.5			1,204.6			826.6
Net (loss) income from discontinued operations, net of tax(4)	(53.6		)	(32.3		)	—			(23.4		)	1.0
Net income	1,872.7			1,330.1			1,278.5			1,181.2			827.6
Less: Net income attributable to non-controlling interest	28.1			17.2			2.7			—			—
Net income attributable to Express Scripts	$	1,844.6		$	1,312.9		$	1,275.8		$	1,181.2		$	827.6
Weighted-average shares outstanding:(5)
Basic:	808.6			731.3			500.9			538.5			527.0
Diluted:	821.6			747.3			505.0			544.0			532.2
Basic earnings (loss) per share:(5)
Continuing operations attributable to Express Scripts	$	2.35		$	1.84		$	2.55		$	2.24		$	1.57
Discontinued operations attributable to Express Scripts(4)	(0.07		)	(0.04		)	—			(0.04		)	—
Net earnings attributable to Express Scripts	2.28			1.80			2.55			2.19			1.57
Diluted earnings (loss) per share:(5)
Continuing operations attributable to Express Scripts	$	2.31		$	1.80		$	2.53		$	2.21		$	1.55
Discontinued operations attributable to Express Scripts(4)	(0.07		)	(0.04		)	—			(0.04		)	—
Net earnings attributable to Express Scripts	2.25			1.76			2.53			2.17			1.56
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	1,898.2		$	1,345.2		$	1,275.8		$	1,204.6		$	826.6
Discontinued operations, net of tax	(53.6		)	(32.3		)	—			(23.4		)	1.0
Net income attributable to Express Scripts shareholders	$	1,844.6		$	1,312.9		$	1,275.8		$	1,181.2		$	827.6

33

(in millions, except per share data)	2013			2012(1)			2011			2010			2009(2)
Balance Sheet Data (as of December 31):
Cash and cash equivalents	$	1,991.4		$	2,793.1		$	5,620.1		$	523.7		$	1,070.4
Working (deficit) capital	(4,743.9		)	(2,300.5		)	2,599.9			(975.9		)	(1,313.3		)
Total assets	53,548.2			58,111.2			15,607.0			10,557.8			11,931.2
Debt:
Short-term debt	1,584.0			934.9			999.9			0.1			1,340.1
Long-term debt	12,363.0			14,980.1			7,076.4			2,493.7			2,492.5
Capital lease obligation	42.0			—			—			—			—
Stockholders’ equity	21,844.8			23,395.7			2,475.3			3,606.6			3,551.8
Network pharmacy claims processed—continuing operations(6)(7)	1,065.3			1,020.7			600.4			602.0			404.3
Home delivery, specialty pharmacy, and other prescriptions filled—continuing operations(6)(8)	141.2			128.7			53.4			54.1			45.0
Total claims—continuing operations(6)	1,206.5			1,149.4			653.8			656.1			449.3
Total adjusted claims—continuing operations(6)(9)	1,478.0			1,395.3			751.5			753.9			530.6
Cash flows provided by operating activities—continuing operations	$	4,768.9		$	4,751.1		$	2,193.1		$	2,105.1		$	1,752.0
Cash flows used in investing activities—continuing operations	(70.0		)	(10,428.7		)	(123.9		)	(145.1		)	(4,820.5		)
Cash flows (used in) provided by financing activities—continuing operations	(5,494.8		)	2,850.4			3,029.4			(2,523.0		)	3,587.0
EBITDA from continuing operations attributable to Express Scripts(10)	5,970.6			4,648.1			2,565.1			2,315.6			1,604.2

(1) Includes the acquisition of Medco effective April 2, 2012.

(2) Includes the acquisition of NextRx effective December 1, 2009.

(3) Includes retail pharmacy co-payments of $12,620.3, $11,668.6, $5,786.6, $6,181.4 and $3,132.1 for the years ended December 31, 2013, 2012, 2011, 2010 and 2009, respectively.

(4) Primarily consists of the results of operations from the discontinued operations of our acute infusion therapies line of business, portions of UBC, EAV, our European operations and PMG. Our acute infusion therapies line of business was classified as a discontinued operation in the third quarter of 2013. Portions of UBC, EAV and our European operations were classified as discontinued operations in the fourth quarter of 2012. PMG was classified as a discontinued operation in the second quarter of 2010.

(5) Earnings per share and weighted-average shares outstanding reflect the two-for-one stock split effective June 8, 2010.

(6) Prior to the Merger, ESI and Medco historically used slightly different methodologies to report claims; however, we believe the differences between the claims reported by ESI and Medco would not be material had the same methodology applied. We have since combined these two approaches into one methodology. This change was made prospectively beginning April 2, 2012. We have not restated the number of claims in prior periods, because the differences are not material.

(7) Excluded from the network claims are manual claims and drug formulary only claims where we only administer the client’s formulary.

(8) These claims include home delivery, specialty and other claims including: (a) drugs distributed through patient assistance programs; (b) drugs we distribute to other PBMs’ clients under limited distribution contracts with pharmaceutical manufacturers; and (c) FreedomFP claims.

(9) Total adjusted claims reflect home delivery claims multiplied by 3, as home delivery claims typically cover a time period 3 times longer than network claims.

(10) EBITDA from continuing operations attributable to Express Scripts is earnings before other income (expense), interest, taxes, depreciation and amortization, or alternatively calculated as operating income plus depreciation and amortization. EBITDA from continuing operations attributable to Express Scripts is presented because it is a widely accepted indicator of a company’s ability to service indebtedness and is frequently used to evaluate a company’s performance. EBITDA from continuing operations attributable to Express Scripts, however, should not be considered as an alternative to net income, as a measure of operating performance, as an alternative to cash flow, as a measure of liquidity or as a substitute for any other measure computed in accordance with accounting principles generally accepted in the United States. In addition, our definition and calculation of EBITDA from continuing operations attributable to Express Scripts may not be comparable to that used by other companies.

34

We have provided below a reconciliation of Adjusted EBITDA from continuing operations attributable to Express Scripts to net income attributable to Express Scripts as we believe it is the most directly comparable measure calculated under accounting principles generally accepted in the United States:

EBITDA from continuing operations attributable to Express Scripts
	Year Ended December 31,
(in millions, except per claim data)	2013			2012			2011		2010			2009
Net income attributable to Express Scripts	$	1,844.6		$	1,312.9		$	1,275.8	$	1,181.2		$	827.6
Net (income) loss from discontinued operations, net of tax	53.6			32.3			—		23.4			(1.0		)
Net income from continuing operations	1,898.2			1,345.2			1,275.8		1,204.6			826.6
Income taxes	1,104.0			838.0			748.6		704.1			481.8
Depreciation and amortization	2,447.0			1,871.4			253.4		244.7			106.7
Interest expense, net	554.2			608.4			287.3		162.2			189.1
Equity income from joint venture	(32.8		)	(14.9		)	—		—			—
EBITDA from continuing operations attributable to Express Scripts	5,970.6			4,648.1			2,565.1		2,315.6			1,604.2
Adjustments to EBITDA from continuing operations attributable to Express Scripts
Transaction and integration costs(1)	693.6			755.1			62.5		122.6			68.6
Accrual related to client contractual dispute	—			—			30.0		—			—
Benefit related to client contract amendment	—			—			—		(30.0		)	—
Legal settlement	—			—			—		—			35.0
Benefit from insurance recovery	—			—			—		—			(15.0		)
Adjusted EBITDA from continuing operations attributable to Express Scripts	6,664.2			5,403.2			2,657.6		2,408.2			1,692.8
Adjusted EBITDA from continuing operations attributable to Express Scripts per adjusted claim(2)	$	4.51		$	3.87		$	3.54	$	3.19		$	3.19

(1) Transaction and integration cost for the year ended December 31, 2013 presented above excludes $31.6 million of depreciation related to the integration of Medco which does not impact EBITDA from continuing operations attributable to Express Scripts.

(2) We calculate and use adjusted EBITDA from continuing operations attributable to Express Scripts per adjusted claim as an indicator of our ability to generate cash from our reported operating results. This measurement is used in concert with net income and cash flows from operations, which measure actual cash generated in the period. In addition, adjusted EBITDA from continuing operations attributable to Express Scripts per adjusted claim is a supplemental measurement used by analysts and investors to help evaluate overall operating performance and our ability to incur and service debt and make capital expenditures. We have calculated adjusted EBITDA from continuing operations attributable to Express Scripts excluding certain charges recorded each year, as these charges are not considered an indicator of ongoing company performance. Adjusted EBITDA from continuing operations attributable to Express Scripts per adjusted claim is calculated by dividing adjusted EBITDA from continuing operations attributable to Express Scripts by the adjusted claim volume for the period. This measure is used as an indicator of EBITDA from continuing operations attributable to Express Scripts performance on a per-unit basis, providing insight into the cash-generating potential of each claim. Adjusted EBITDA from continuing operations attributable to Express Scripts and, as a result, adjusted EBITDA from continuing operations attributable to Express Scripts per adjusted claim, are affected by the changes in claim volumes between network and home delivery and specialty, the relative representation of brand-name, generic and specialty pharmacy drugs, as well as the level of efficiency in the business.

35

Item 7 — Management’s Discussion and Analysis of Financial Condition and Results of Operations

OVERVIEW

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.

As the largest full-service pharmacy benefit management (“PBM”) company in the United States, we provide healthcare management and administration services on behalf of our clients, which 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. During the second quarter of 2012, we reorganized our segments to better reflect our structure following the Merger. Our other international retail network pharmacy administration business (which was substantially shut down as of December 31, 2012) was reorganized 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. 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.

Revenue generated by our segments can be classified as either tangible product revenue or service revenue. We earn tangible product revenue from the sale of prescription drugs by retail pharmacies in our retail pharmacy networks and from dispensing prescription drugs from our home delivery and specialty pharmacies. Service revenue includes administrative fees associated with the administration of retail pharmacy networks contracted by certain clients, medication counseling services and certain specialty distribution services. Tangible product revenue generated by our PBM and Other Business Operations segments represented 98.8% of revenues for the year ended December 31, 2013, as compared to 99.0% and 99.4% for the years ended December 31, 2012 and 2011, respectively.

MERGER TRANSACTION

As a result of the Merger on April 2, 2012, Medco and ESI each became wholly-owned subsidiaries of Express Scripts and former Medco and ESI stockholders became owners of Express Scripts stock, which is listed for trading on the Nasdaq. Upon closing of the Merger, former ESI stockholders owned approximately 59% of Express Scripts and former Medco stockholders owned approximately 41% of Express Scripts.

36

EXECUTIVE SUMMARY AND TREND FACTORS AFFECTING THE BUSINESS

Our results in 2013 compared to prior periods continue to be driven by the addition of Medco to our book of business on April 2, 2012. The Merger impacted all components of our financial statements, including our revenues, expenses and profits, the consolidated balance sheet and claims volumes. Our results reflect the ability to successfully achieve synergies throughout the Merger. Our results also reflect the successful execution of our business model, which emphasizes the alignment of our financial interests with those of our clients and patients through greater use of generics and low-cost brands, home delivery and specialty pharmacies. We also benefited from better management of ingredient costs through renegotiation of supplier contracts, increased competition among generic manufacturers and a higher generic fill rate (80.8% in 2013 compared to 78.5% in 2012). In addition, we are providing our clients with additional tools designed to generate higher generic fill rates, further increase the use of our home delivery and specialty pharmacy services and drive greater adherence. While we operate in a competitive environment with various marketplace forces that affect pricing and plan structures and increasing client demands and expectations, we expect that the ongoing positive trends in our business will continue to offset negative factors. As a result of the transition of UnitedHealth Group claims and variability of other contractual revenue streams, quarterly performance trends may vary from historical periods. As expected, revenue related to a large client was realized in the second quarter of 2013 due to the structure of the contract. The Company anticipates this pattern of earnings to continue for the foreseeable future.

As the regulatory environment evolves, we plan to continue to make significant investments designed to keep us ahead of the competition. These projects include preparation for changes to the Medicare regulations and the implementation of the Health Reform Laws.

CRITICAL ACCOUNTING POLICIES

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Our estimates and assumptions are based upon a combination of historical information and various other assumptions believed to be reasonable under the particular circumstances. Actual results may differ from our estimates. The accounting policies described below represent those policies that management believes most impact our consolidated financial statements, are important for an understanding of our results of operations or require management to make difficult, subjective or complex judgments. This should be read in conjunction with Note 1 - Summary of significant accounting policies and with the other notes to the consolidated financial statements.

GOODWILL AND INTANGIBLE ASSETS

ACCOUNTING POLICY

Goodwill and intangible asset balances arise primarily from the allocation of the purchase price of businesses acquired based on the fair market value of assets acquired and liabilities assumed on the date of the acquisition. Goodwill is evaluated for impairment annually or when events or circumstances occur indicating that goodwill might be impaired. 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.

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. 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 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.

37

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, as allowed under authoritative Financial Accounting Standards Board (“FASB”) guidance. No impairment charges were recorded as a result of our annual impairment test. However, an impairment charge of $32.9 million was recorded in 2013 based on the contracted sales price of the business (Level 2) associated with our acute infusion therapies line of business due to entering into an agreement for the sale of the business. Our acute infusion therapies line of business was subsequently sold on November 1, 2013. An impairment charge of $2.0 million was recorded in 2012 associated with our subsidiary Europa Apotheek Venlo B.V. (“EAV”), based on a change in business environment related to an adverse court ruling by the German high court in August 2012 and the expected disposal of EAV as a result of the ruling (Level 2). EAV was subsequently sold on December 4, 2012. No other goodwill impairment charges existed for any of our other reporting units at December 31, 2013 or December 31, 2012.

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. 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.

In 2012, upon reassessment of the carrying values of assets and liabilities of EAV based on the events described above, we recorded impairment charges associated with this line of business totaling $9.5 million of intangibles assets. The write-off of intangible assets was comprised of customer relationships with a carrying value of $3.6 million (gross value of $5.0 million less accumulated amortization of $1.4 million) and trade names with a carrying value of $5.9 million (gross value of $7.0 million less accumulated amortization of $1.1 million). EAV was subsequently sold on December 4, 2012.

In 2012, as a result of our plan to dispose of our PolyMedica Corporation (“Liberty”) line of business, an impairment charge totaling $23.0 million was recorded against intangible assets to reflect fair value based on the contracted sales price of the business (Level 2). The write-down was comprised of customer relationships with a carrying value of $24.2 million (gross value of $35.0 million less accumulated amortization of $10.8 million) and trade names with a carrying value of $6.6 million ($7.0 million less accumulated amortization of $0.4 million). This charge was allocated to these assets on a pro rata basis using the carrying values as of September 30, 2012. Liberty was subsequently sold on December 3, 2012. See Note 4 - Dispositions and Note 6 - Goodwill and other intangibles for further discussion of these lines of business.

FACTORS AFFECTING ESTIMATE

The fair values of reporting units, asset groups or acquired businesses are measured based on market prices, when available. When market prices are not available, we estimate fair value using the income approach and/or the market approach. The income approach uses cash flow projections which require inputs and assumptions that reflect current market conditions as well as management judgment. We base our fair values on projected financial information which we believe to be reasonable. However, actual results may differ from those projections and those differences may be material.

The key assumptions included in our income approach include, but are not limited to, earnings growth rates, discount rates and inflation rates. Assessment of these factors could be impacted by internal factors and/or external economic conditions. We performed various sensitivity analyses on the key assumptions which did not indicate any potential impairment.

CONTRACTUAL GUARANTEES

ACCOUNTING POLICY

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 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.

38

FACTORS AFFECTING ESTIMATE

The factors that could impact our estimates of guarantees expense and guarantees payable are as follows:

• differences between the rates guaranteed by us to clients and rates contracted by us with pharmacies in our retail networks or with pharmaceutical manufacturers for drugs dispensed from our home delivery pharmacies

• changes in drug utilization patterns, including the mix of brand and generic drugs as well as utilization of our home delivery pharmacy

ALLOWANCE FOR DOUBTFUL ACCOUNTS

ACCOUNTING POLICY

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.

FACTORS AFFECTING ESTIMATE

We record allowances for doubtful accounts based on a variety of factors including the length of time the receivables are past due, the financial health of the customer and historical experience. Our estimate could be impacted by changes in economic and market conditions as well as changes to our customers’ financial condition.

SELF-INSURANCE ACCRUALS

ACCOUNTING POLICY

We record self-insurance accruals based upon estimates of the aggregate liability of claim costs in excess of our insurance coverage which are probable and estimable. Accruals are estimated using certain actuarial assumptions followed in the insurance industry and our historical experience. The majority of these claims are legal claims and our liability estimate is primarily related to the cost to defend these claims. We do not accrue for settlements, judgments, monetary fines or penalties until such amounts are probable and estimable. Under authoritative FASB guidance, if the range of possible loss is broad, and no amount within the range is more likely than any other, the liability accrual is based on the low end of the range.

FACTORS AFFECTING ESTIMATE

Self-insurance accruals are based on management’s estimates of the costs to defend legal claims. We do not have significant experience with certain of these types of cases. As such, differences between actual costs and management’s estimates could be significant. Actuaries do not have a significant history with the PBM industry. Therefore, changes to assumptions used in the development of these accruals can affect net income in a given period. In addition, changes in the legal environment and the number and nature of claims could impact our estimate. The self-insurance accruals and changes in those estimates have not been material to the consolidated financial statements for the periods presented herein.

INCOME TAXES

ACCOUNTING POLICY

Deferred tax assets and liabilities are recorded based on temporary differences between the financial statement basis and the tax basis of assets and liabilities using presently enacted tax rates. We evaluate tax positions to determine whether the benefits of tax positions are more likely than not of being sustained upon audit based on the technical merits of the tax position.

FACTORS AFFECTING ESTIMATE

The factors that could impact our estimates of uncertain tax positions are as follows:

• likelihood of being sustained upon audit based on the technical merits of the tax position

• assumed interest and penalties associated with uncertain tax positions

39

OTHER ACCOUNTING POLICIES

We consider the following information about revenue recognition policies important for an understanding of our results of operations:

PRESCRIPTION DRUG REVENUES

Revenues from the sale of prescription drugs by retail pharmacies 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 (ingredient cost plus dispensing fee) we have contracted with these clients as revenue, including member co-payments to pharmacies.

Revenues from dispensing prescriptions from our home delivery and specialty pharmacies are recorded when prescriptions are shipped. These revenues include the co-payment received from members of the health plans we serve. At the time of shipment, we have performed substantially all of our obligations under the customer contracts and do not experience a significant level of reshipments or returns.

REBATES AND ADMINISTRATIVE FEES

When 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 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, drug ingredient cost is not included in our revenues or in our cost of revenues.

Gross rebates and administrative fees earned for the administration of our rebate programs, performed in conjunction with claims processing services provided to clients, are recorded as a reduction of cost of revenue and the portion of the rebate payable to customers is treated as a reduction of revenue.

When we earn rebates and administrative fees in conjunction with formulary management services, but do not process the underlying claims, we record rebates received from manufacturers, net of the portion payable to customers, in revenue.

We distribute pharmaceuticals in connection with our management of patient assistance programs and earn a fee from the manufacturer for administrative and pharmacy services for the delivery of certain drugs free of charge to doctors for their low-income patients. We earn a fee for the distribution of consigned pharmaceuticals requiring special handling or packaging where we have been selected by the pharmaceutical manufacturer as part of a limited distribution network.

MEDICARE PRESCRIPTION DRUG PROGRAM

Our revenues include premiums associated with our Medicare PDP risk-based product offerings. These products involve prescription dispensing for beneficiaries enrolled in the CMS-sponsored Medicare Part D Prescription Drug Program (“Medicare Part D”) prescription drug benefit. 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. 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 and is recorded at cost as incurred.

SPECIALTY DRUG REVENUES

We operate specialty pharmacies that dispense medications for the treatment of complex and potentially life threatening diseases. Many of the products are covered under a medical benefit which results in a more complicated adjudication process and coverage review, often involving a primary, secondary or tertiary coverage. As a result, certain revenues are estimated based on historical collection rates. Amounts received from our clients may be greater than or less than originally estimated. Any differences between the estimates and actual collections are reflected in operations in the period payment is received or as a better estimate becomes available. Differences may affect the amount and timing of revenues for any period if actual pricing varies from estimates. Allowances for returns are estimated based on historical return trends. The discounts, contractual allowances, allowances for returns and any differences between estimates and actual amounts do not have a material effect on our consolidated financial statements.

40

UBC REVENUES

Our United BioSource LLC (“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 these services is recognized as the services are performed.

RESULTS OF OPERATIONS

We report segments on the basis of services offered and have determined we have two reportable segments: PBM and Other Business Operations. Our PBM segment includes our integrated PBM operations and specialty pharmacy operations. Our Other Business Operations segment includes UBC and our specialty distribution operations.

During the second quarter of 2012, we reorganized our other 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.

Prior to the Merger, ESI and Medco historically used slightly different methodologies to report claims; however, we believe the differences between the claims reported by ESI and Medco would not be material had the same methodology been applied. We have since combined these two approaches into one methodology. This change was made prospectively beginning April 2, 2012. We have not restated the number of claims in prior periods because the differences are not material.

41

PBM OPERATING INCOME

During 2013, we determined our acute infusion therapies line of business which was acquired in the Merger and previously included within our PBM segment was no longer core to our future operations and committed to a plan to dispose of this business. In accordance with applicable accounting guidance, the results of operations for this business are reported as discontinued operations for all periods presented in the accompanying information provided below.

	Year Ended December 31,
(in millions)	2013		2012(1)		2011
Product revenues:
Network revenues(2)	$	63,244.4	$	57,765.5	$	30,007.3
Home delivery and specialty revenues(3)	37,621.2		32,860.9		14,547.4
Service revenues	1,020.1		805.8		273.0
Total PBM revenues	101,885.7		91,432.2		44,827.7
Cost of PBM revenues(2)	93,889.6		84,352.5		41,668.9
PBM gross profit	7,996.1		7,079.7		3,158.8
PBM SG&A expenses	4,494.1		4,264.6		856.2
PBM operating income	$	3,502.0	$	2,815.1	$	2,302.6
Claims(4)
Network—continuing operations	1,065.3		1,020.7		600.4
Home delivery and specialty—continuing operations(3)	141.2		127.9		53.4
Total PBM claims—continuing operations	1,206.5		1,148.6		653.8
Total adjusted PBM claims—continuing operations(5)	1,478.0		1,392.8		751.5
Network—discontinued operations	—		—		—
Home delivery and specialty—discontinued operations(3)	0.4		0.4		—
Total PBM claims—discontinued operations	0.4		0.4		—
Total adjusted PBM claims—discontinued operations(5)	0.4		0.4		—

(1) Includes the acquisition of Medco effective April 2, 2012.

(2) Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

(3) Includes home delivery, specialty and other claims including: (a) drugs distributed through patient assistance programs; (b) drugs we distribute to other PBMs’ clients under limited distribution contracts with pharmaceutical manufacturers; and (c) FreedomFP claims.

(4) Claims are calculated based on an updated methodology starting April 2, 2012. The prior periods have not been recalculated using the new methodology because we believe the differences would not be material, as discussed above.

(5) Total adjusted claims reflect home delivery claims multiplied by 3, as home delivery claims typically cover a time period 3 times longer than network claims.

PBM RESULTS OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2013 vs. 2012

Network revenues increased $5,478.9 million, or 9.5%, in 2013 over 2012. Due to the timing of the Merger, 2012 revenues and associated claims do not include Medco results of operations (including transactions from UnitedHealth Group members) for the period January 1, 2012 through April 1, 2012, compared to a full year of operations for 2013. Due to this timing, approximately $9,131.7 million of the increase in network revenues relates to the acquisition of Medco and inclusion of its revenues and associated claims for the three months ended March 31, 2013. This increase is partially offset by lower revenue of approximately $3,565.8 million due to the transition of UnitedHealth Group during 2013, as well as an increase in the generic fill rate. Our consolidated network generic fill rate increased to 81.6% of total network claims in 2013 as compared to 79.4% in 2012.

42

Home delivery and specialty revenues increased $4,760.3 million, or 14.5%, in 2013 over 2012. Due to the timing of the Merger, 2012 revenues and associated claims do not include Medco results of operations (including transactions from UnitedHealth Group members) for the period January 1, 2012 through April 1, 2012, compared to a full year of operations for 2013. Due to this timing, approximately $5,216.8 million of the increase in home delivery and specialty revenues relates to the acquisition of Medco and inclusion of its revenues and associated claims for the three months ended March 31, 2013. In addition, this increase is due to inflation on branded drugs. These increases are partially offset by lower revenue of approximately $627.2 million due to the transition of UnitedHealth Group during 2013, as well as an increase in the home delivery generic fill rate. Our consolidated home delivery generic fill rate increased to 74.6% of home delivery claims in 2013 as compared to 71.5% in 2012. The home delivery generic fill rate is lower than the network generic fill rate as fewer generic substitutions are available among maintenance medications (e.g., therapies for chronic conditions) commonly dispensed from home delivery pharmacies compared to acute medications which are primarily dispensed by pharmacies in our retail networks.

Cost of PBM revenues increased $9,537.1 million, or 11.3%, in 2013 when compared to the same period of 2012. Due to the timing of the Merger, 2012 cost of revenues and associated claims do not include Medco results of operations (including transactions from UnitedHealth Group members) for the period beginning January 1, 2012 through April 1, 2012, compared to a full year of operations for 2013. Due to this timing, approximately $13,416.8 million of the increase in cost of PBM revenues relates to the acquisition of Medco and inclusion of its cost of revenues and associated claims for the three months ended March 31, 2013. In addition, this increase is due to ingredient cost inflation on branded drugs as well as $238.3 million of transaction and integration costs for 2013 compared to $49.7 million for 2012. These increases are partially offset by lower cost of revenues of approximately $4,069.4 million due to the transition of UnitedHealth Group during 2013, as well as an increase in the generic fill rate.

PBM gross profit increased $916.4 million, or 12.9%, in 2013 over 2012. This increase relates to the acquisition of Medco (including transactions from UnitedHealth Group members) and inclusion of its gross profit and associated claims for the three months ended March 31, 2013, as discussed above. In addition, this increase is a result of better management of ingredient costs and cost savings from the increase in the aggregate generic fill rate, partially offset by lower revenues and associated cost of revenues due to the transition of UnitedHealth Group.

Selling, general and administrative expense (“SG&A”) for the PBM segment increased $229.5 million, or 5.4% in 2013 over 2012. Approximately $832.9 million of this increase relates to the acquisition of Medco, due primarily to the inclusion of its SG&A and the amortization of intangible assets acquired for the three months ended March 31, 2013, as discussed above. This increase is partially offset by synergies realized as a result of the Merger, $490.4 million of transaction and integration costs for 2013 compared to $697.2 million for 2012, and decreased management incentive compensation.

PBM operating income increased $686.9 million, or 24.4%, in 2013 over 2012, based on the various factors described above.

PBM RESULTS OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2012 vs. 2011

Network revenues increased $27,758.2 million, or 92.5%, in 2012 over 2011. Approximately $27,381.0 million of this increase relates to the acquisition of Medco and inclusion of its revenues and associated claims from April 2, 2012 through December 31, 2012. The remaining increase represents inflation on branded drugs offset by an increase in the generic fill rate. Our consolidated network generic fill rate increased to 79.4% of total network claims in 2012 as compared to 75.3% in 2011.

Home delivery and specialty revenues increased $18,313.5 million, or 125.9%, in 2012 over 2011. Approximately $16,952.3 million of this increase relates to the acquisition of Medco and inclusion of its revenues and associated claims from April 2, 2012 through December 31, 2012. The remaining increase represents inflation on branded drugs and higher claims volume attributed to the success of mail conversion programs offset by an increase in the home delivery generic fill rate. Our consolidated home delivery generic fill rate increased to 71.5% of home delivery claims in 2012 as compared to 63.0% in 2011. The home delivery generic fill rate is lower than the network generic fill rate as fewer generic substitutions are available among maintenance medications (e.g., therapies for chronic conditions) commonly dispensed from home delivery pharmacies compared to acute medications which are primarily dispensed by pharmacies in our retail networks.

Total revenue for the year ended December 31, 2011 also includes charges of $30.0 million related to a client contractual dispute. In 2012, this dispute was resolved and the impact of the resolution was not material. See Note 12 - Commitments and contingencies for further discussion of this contractual dispute.

Cost of PBM revenues increased $42,683.6 million, or 102.4%, in 2012 when compared to the same period in 2011. Approximately $41,260.2 million of this increase relates to the acquisition of Medco and inclusion of its costs from April 2, 2012 through December 31, 2012. The increase during the period is also due to ingredient cost inflation partially offset by an

43

increase in the generic fill rate. Additionally, included in the cost of PBM revenues for the year ended December 31, 2012 is $49.7 million of integration costs related to the acquisition of Medco.

PBM gross profit increased $3,920.9 million, or 124.1%, in 2012 over 2011. Approximately $3,422.0 million of this increase relates to the acquisition of Medco and inclusion of its costs from April 2, 2012 through December 31, 2012. The remaining increase primarily relates to better management of ingredient costs and cost savings from the increase in the aggregate generic fill rate.

SG&A for the PBM segment increased $3,408.4 million in 2012 over 2011. Approximately $2,497.1 million of this increase relates to the acquisition of Medco and inclusion of its SG&A from April 2, 2012 through December 31, 2012. The remaining increase primarily relates to management incentive compensation reflecting improved financial results and $697.2 million of transaction and integration costs. These increases are offset by synergies realized following the Merger.

PBM operating income increased $512.5 million, or 22.3%, in 2012 over 2011, based on the various factors described above.

OTHER BUSINESS OPERATIONS OPERATING INCOME

During 2012, we determined that various portions of UBC, our operations in Europe (“European operations”) and Europa Apotheek Venlo B.V. (“EAV”) acquired in the Merger that were previously included within our Other Business Operations segment were no longer core to our future operations and committed to a plan to dispose of these businesses. In accordance with applicable accounting guidance, the results of operations for these businesses are reported as discontinued operations and excluded from all periods presented in the accompanying information provided below.

	Year Ended December 31,
(in millions)	2013		2012(1)			2011
Product revenues	$	2,001.9	$	2,118.7		$	1,279.3
Service revenues	211.2		163.4			21.3
Total Other Business Operations revenues	2,213.1		2,282.1			1,300.6
Cost of Other Business Operations revenues	2,076.8		2,049.9			1,249.5
Other Business Operations gross profit	136.3		232.2			51.1
Other Business Operations SG&A expenses	86.6		253.4			39.3
Other Business Operations operating income (loss)	$	49.7	$	(21.2	)	$	11.8
Claims
Home delivery and specialty—continuing operations	—		0.8			—
Total adjusted Other Business Operations claims—continuing operations(2)	—		2.5			—
Home delivery and specialty—discontinued operations	—		4.9			—
Total adjusted Other Business Operations claims—discontinued operations(2)	—		14.7			—

(1) Includes the acquisition of Medco effective April 2, 2012. Claims for 2012 relate to a business acquired with the Merger that was subsequently sold in 2012.

(2) Total adjusted claims reflect home delivery claims multiplied by 3, as home delivery claims typically cover a time period 3 times longer than network claims.

OTHER BUSINESS OPERATIONS RESULTS OF OPERATIONS

Other Business Operations operating income increased $70.9 million in 2013 over 2012. Due to the timing of the Merger, 2012 revenues and associated claims do not include Medco results of operations for the period beginning January 1, 2012 through April 1, 2012, compared to a full year of operations for 2013. Due to this timing, the increase in operating income is due primarily to the acquisition of Medco and inclusion of its results of operations for the period beginning January 1, 2013 through April 1, 2013, as well as losses incurred on businesses for the year ended December 31, 2012 which were substantially shut down as of December 31, 2012. In addition, this increase is due to impairment charges associated with our Liberty brand, less the gain upon sale, netting to a loss of $22.5 million for the year ended December 31, 2012 and a $3.5 million gain associated with the settlement of working capital balances for ConnectYourCare (“CYC”) for the year ended December 31, 2013 as discussed in Note 4 - Dispositions. These increases were partially offset by a $14.3 million gain associated with the sale of CYC for the year ended December 31, 2012 as discussed in Note 4 - Dispositions.

44

Other Business Operations operating income decreased $33.0 million in 2012 over 2011. This decrease is due primarily to the inclusion of amounts related to Medco, the impact of impairment charges, less the gain upon sale associated with Liberty, netting to a loss of $22.5 million, and losses attributed to other international businesses. Offsetting these losses is a $14.3 million gain associated with the sale of CYC for the year ended December 31, 2012.

OTHER (EXPENSE) INCOME, NET

Net other expense decreased $72.1 million, or 12.1%, in 2013 as compared to 2012. This decrease is primarily due to reduced interest for the year ended December 31, 2013 due to the early redemption of ESI’s $1,000.0 million aggregate principal amount of 6.250% senior notes due 2014, and a $35.4 million contractual interest payment received from a client. In addition, this decrease was partially due to greater undistributed gains from our joint venture of $32.8 million for the year ended 2013 compared to $14.9 million for the year ended 2012, which we began recording under the equity method due to our increased consolidated ownership following the Merger as discussed in Note 3 - Changes in business. These net decreases are partially offset by the acquisition of Medco and inclusion of its interest expense for the three months ended March 31, 2013 related to the senior notes acquired in the Merger, as well as $68.5 million of redemption costs and write-off of deferred financing fees incurred for early redemption of debt as discussed below for the year ended December 31, 2013.

Net other expense increased $306.2 million, or 106.6%, in 2012 as compared to 2011 due to the following items: $85.2 million of financing fees related to the bridge facility (defined below) and senior note interest incurred in 2012 prior to the Merger; $12.4 million of financing fees related to the credit agreement (defined below) entered into upon consummation of the Merger; and interest expense incurred subsequent to the Merger related to the credit agreement, February 2012 Senior Notes, November 2011 Senior Notes, May 2011 Senior Notes, and senior notes acquired from Medco on April 2, 2012. These increases were partially offset by the redemption of Medco’s $500.0 million aggregate principal amount of 7.250% senior notes due 2013, the redemption of ESI’s $1,000.0 million aggregate principal amount of 5.250% senior notes due 2012, early repayment of $1,000.0 million associated with the credit agreement and termination of the bridge facility. Other net expense includes equity income of $14.9 million attributable to our joint venture, Surescripts, which is accounted for using the equity method due to our increased consolidated ownership following the Merger.

For the definitions of the agreements and senior notes referenced above, see “Part II — Item 7 — Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources.”

PROVISION FOR INCOME TAXES

Our effective tax rate from continuing operations attributable to Express Scripts was 36.4% for the year ended December 31, 2013, compared to 38.1% and 37.0% for 2012 and 2011, respectively.

During 2013, we recorded a discrete benefit of $51.2 million primarily attributable to investments in certain foreign subsidiaries for which we recognized as a result of various divestitures, deferred tax implications of newly enacted state laws and income not recognized for tax purposes. We recorded a discrete benefit of $8.2 million in 2012 primarily attributable to an income tax contingency related to prior year income tax return filings and investments in certain foreign subsidiaries for which we expected to realize in the foreseeable future.

As of December 31, 2013, management intends to pursue a $544.9 million potential tax benefit related to the disposition of Liberty. Based on information currently available, no net benefit has been recognized. Pending the resolution of certain matters, including but not limited to examinations by taxing authorities, all or a part of the deduction may become realizable in the future. We cannot predict with any certainty the exact amount.

We believe that it is reasonably possible that our unrecognized tax benefits could significantly change within the next twelve months due to the anticipated conclusion of various examinations. At this time, an estimate of the range of the reasonably possible change in the next 12 months cannot be made.

45

NET LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX

During 2012, we sold our EAV business. In addition, we determined our European operations and portions of our UBC line of business were not core to our future operations and committed to a plan to dispose of these businesses. Subsequently, during 2013, we sold all portions of our UBC line of business classified as discontinued operations. During 2013, we also sold our acute infusion therapies line of business. These lines of business are classified as discontinued operations. In accordance with applicable accounting guidance, the results of our acute infusion therapies line of business for the year ended December 31, 2012 have been reclassed to reflect these operations as discontinued. As these businesses were acquired with the Merger, results of operations for the period beginning January 1, 2012 through April 1, 2012 and for the year ended December 31, 2011 do not include these operations.

The net loss from discontinued operations, net of tax, increased $21.3 million, or 65.9%, in 2013 as compared to 2012. This increase is due to a total gain of $52.3 million recognized in connection with the sale of the discontinued operations portions of our UBC business and our acute infusion therapies line of business, as well as impairment charges associated with our EAV line of business of $11.5 million during the year ended December 31, 2012, which was sold in the fourth quarter of 2012. These increases are partially offset by a $32.9 million impairment on our acute infusion therapies line of business and charges recognized of $16.0 million for the year ended December 31, 2013.

The loss from discontinued operations for the year ended December 31, 2012 is due primarily to the impairment charges associated with EAV totaling $11.5 million to reflect the write-down of $2.0 million of goodwill and $9.5 million of intangible assets, partially offset by a $3.7 million gain recognized in connection with the sale of EAV.

See Note 6 - Goodwill and other intangibles and Note 4 - Dispositions for further information regarding the businesses discussed above.

NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTEREST

Net income attributable to non-controlling interest represents the share of net income allocated to members in our consolidated affiliates. Increases in these amounts are primarily driven by increased profitability.

NET INCOME AND EARNINGS PER SHARE ATTRIBUTABLE TO EXPRESS SCRIPTS

Net income attributable to Express Scripts increased $531.7 million, or 40.5%, for the year ended December 31, 2013 over 2012 and increased $37.1 million, or 2.9%, for the year ended December 31, 2012 over 2011.

Basic and diluted earnings per share attributable to Express Scripts increased 26.7% and 27.8%, respectively, for the year ended December 31, 2013 over 2012. These increases are primarily due to increased operating income during 2013, as well as treasury shares repurchased through the 2013 Share Repurchase Program (including the 2013 ASR Program as defined below), as discussed in Note 9 - Common stock, partially offset by amortization of intangible assets and financing and commitment fees. Basic and diluted earnings per share attributable to Express Scripts decreased 29.4% and 30.4%, respectively, for the year ended December 31, 2012 over 2011. The decrease is primarily due to amortization of intangibles and integration costs, offset by the addition of Medco operating results, improved operating performance and synergies.

LIQUIDITY AND CAPITAL RESOURCES

OPERATING CASH FLOW AND CAPITAL EXPENDITURES

In 2013, net cash provided by continuing operations increased $17.8 million to $4,768.9 million. Changes in operating cash flows from continuing operations in 2013 were impacted by the following factors:

• Net income from continuing operations increased $563.9 million in 2013 over 2012.

• Net income is reduced by depreciation and amortization expense, which is non-cash and therefore added back to cash flows from operating activities to reconcile net income to net cash provided. Total depreciation and amortization expense was $2,447.0 million in 2013, an increase of $575.6 million over 2012.

• Deferred income taxes increased by $184.7 million in 2013 when compared to 2012 reflecting a net change in temporary differences primarily attributable to book amortization on customer contracts acquired in the Merger that are not deductible for tax purposes.

• Net income is reduced by employee stock-based compensation expense, which is non-cash and therefore added back to cash flows from operating activities to reconcile net income to net cash provided. Total employee stock-based compensation expense was $164.7 million in 2013, a decrease of $245.3 million over

46

2012 due to acceleration of stock-based compensation expense and award vesting associated with the termination of certain Medco employees following the Merger during the year ended 2012.

• Changes in working capital resulted in cash inflows of $775.4 million in 2013 compared to cash inflows of $1,425.8 million over the same period in 2012, resulting in a total decrease of $650.4 million. The working capital decrease was primarily due to the timing and receipt and payment of claims and rebates payable, accounts receivable and accounts payable.

In 2013, net cash used in discontinued operations was $11.4 million, compared to $30.5 millionprovided by discontinued operations in 2012, a decrease of $41.9 million. This was due to changes in working capital of our acute infusion therapies line of business, portions of UBC, and our European operations in 2013.

In 2012, net cash provided by continuing operations increased $2,558.0 million to $4,751.1 million. Changes in operating cash flows from continuing operations in 2012 were impacted by the following factors:

• Net income from continuing operations increased $83.9 million in 2012 over 2011.

• Net income is reduced by depreciation and amortization expense, which is non-cash and therefore added back to cash flows from operating activities to reconcile net income to net cash provided. Total depreciation and amortization expense was $1,871.4 million in 2012, an increase of $1,618.0 million over 2011.

• Changes in working capital resulted in cash inflows of $1,425.8 million in 2012 compared to cash inflows of $377.5 million over the same period in 2011, resulting in a total increase of $1,048.3 million. The cash flow increase was primarily due to the timing and receipt and payment of claims and rebates payable, accounts receivable and accounts payable as well as the realization of working capital synergies.

In 2012, net cash provided by discontinued operations increased $30.5 million. This was due to classification of our acute infusion therapies line of business, portions of UBC, EAV and our European operations as discontinued operations in 2012, while no businesses classified as discontinued operations were owned in 2011.

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.

In 2013, net cash used in investing activities by continuing operations decreased $10,358.7 million to $70.0 million. This change is primarily attributable to $10,326.0 million of cash outflows associated with the Merger during 2012. Capital expenditures for purchases of property and equipment increased $262.8 million compared to the prior period due primarily to integration-related investments. We intend to continue to invest in infrastructure and technology, which we believe will provide efficiencies in operations, facilitate growth and enhance the service we provide to our clients. Anticipated capital expenditures will be funded primarily from operating cash flow or, to the extent necessary, with borrowings under our revolving credit facility, discussed below. The proceeds from the sale of discontinued operations of $356.9 million offset capital expenditures for the year ended December 31, 2013.

Net cash used in financing activities by continuing operations decreased $8,345.2 million from inflows of $2,850.4 million for the year ended December 31, 2012 to outflows of $5,494.8 million for the year ended December 31, 2013. Outflows in 2013 were primarily due to treasury share repurchases of $4,055.2 million, $1,300.0 million related to the redemption of senior notes and $631.6 million of quarterly term facility payments during the year ended December 31, 2013. These net outflows are compared to proceeds of $3,458.9 million from the issuance of senior notes, proceeds of $4,000.0 million in connection with the term facility used to fund the Merger which were received during the year ended December 31, 2012, and repayments of long-term debt totaling $4,868.5 million.

In 2012, net cash used in financing activities by discontinued operations increased by $26.8 million due to classification of EAV as discontinued operations in 2012, while no businesses were classified in discontinued operations in 2011. There were no cash flows for financing activities by discontinued operations during 2013.

At December 31, 2013, our sources of capital included a $1,500.0 million revolving credit facility (the “revolving facility”) (none of which was outstanding at December 31, 2013).

Our current maturities of long-term debt include approximately $900.0 million of senior notes, as well as $684.2 million of term loan payments that are due in 2014.

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.

47

We anticipate that our current cash balances, cash flows from operations and our revolving credit facility will be sufficient to meet our cash needs and make scheduled payments for our contractual obligations and current capital commitments. However, if needs arise, we may decide to secure external capital to provide additional liquidity. New sources of liquidity may include additional lines of credit, term loans, or issuance of notes, all of which are allowable, with certain limitations, under our existing credit agreement, or issuances of common stock. While our ability to secure debt financing in the short term at rates favorable to us may be moderated due to various factors, including the financing incurred in connection with the Merger, market conditions or other factors, we believe our liquidity options discussed above are sufficient to meet our cash flow needs.

ACQUISITIONS AND RELATED TRANSACTIONS

As a result of the Merger on April 2, 2012, Medco and ESI each became 100% owned subsidiaries of Express Scripts and former Medco and ESI stockholders became owners of Express Scripts stock, which is listed on the Nasdaq. Upon closing of the Merger, former ESI stockholders owned approximately 59% of Express Scripts and former Medco stockholders owned approximately 41% of Express Scripts. Per the terms of the Merger Agreement, upon consummation of the Merger on April 2, 2012, each share of Medco common stock was converted into (i) the right to receive $28.80 in cash, without interest and (ii) 0.81 shares of Express Scripts stock. Holders of Medco stock options, restricted stock units, and deferred stock units received replacement awards at an exchange ratio of 1.3474 Express Scripts stock awards for each Medco award owned, which is equal to the sum of (i) 0.81 and (ii) the quotient obtained by dividing (1) $28.80 (the cash component of the Merger consideration) by (2) an amount equal to the average of the closing prices of ESI common stock on the Nasdaq for each of the 15 consecutive trading days ending with the fourth complete trading day prior to the completion of the Merger (see Note 3 - Changes in business).

We regularly review potential acquisitions and affiliation opportunities. We believe available cash resources, bank financing, additional debt financing or the issuance of additional common stock could be used to finance future acquisitions or affiliations. There can be no assurance we will make new acquisitions or establish new affiliations in 2014 or thereafter.

STOCK REPURCHASE PROGRAM

On March 6, 2013, the Board of Directors of Express Scripts approved a share repurchase program (the “2013 Share Repurchase Program”), authorizing the repurchase of up to 75.0 million shares (as adjusted for any subsequent stock split, stock dividend or similar transaction) of the Company’s common stock. There is no limit on the duration of the 2013 Share Repurchase Program. As part of the 2013 Share Repurchase Program, on December 9, 2013, we executed the 2013 ASR Program (as defined and discussed below).

Including the shares repurchased through the 2013 ASR Program, we repurchased 60.4 million shares for $3,905.3 million during the year ended December 31, 2013. Repurchases during the second quarter included 1.2 million shares of common stock for an aggregate purchase price of $68.4 million that were held on behalf of participants who acquired such shares upon the consummation of the Merger as a result of conversion of Medco shares previously held in Medco’s 401(k) plan. As previously announced, the Express Scripts 401(k) Plan no longer offers an investment fund option consisting solely of shares of Express Scripts common stock, and previously held shares were to be sold on or about the first anniversary of the Merger. This repurchase was not considered part of the 2013 Share Repurchase Program. As of December 31, 2013, there were 15.8 million shares remaining under the 2013 Share Repurchase Program, including shares repurchased under the 2013 ASR Program. Additional share repurchases, if any, will be made in such amounts and at such times as the Company deems appropriate based upon prevailing market and business conditions and other factors. Current year repurchases were funded through internally generated cash.

ESI had a stock repurchase program, originally announced on October 25, 1996. In addition to the shares repurchased through the 2011 ASR Agreement (defined below), ESI repurchased 13.0 million shares under its existing stock repurchase program during the second quarter of 2011 for $765.7 million.

Upon consummation of the Merger on April 2, 2012, all ESI shares held in treasury were no longer outstanding and were cancelled and retired and ceased to exist. See Note 9 - Common stock.

ACCELERATED SHARE REPURCHASE

On December 9, 2013, as part of our 2013 Share Repurchase Program, we entered into an agreement to repurchase shares of our common stock for an aggregate purchase price of $1,500.0 million (the “2013 ASR Program”) under an Accelerated Share Repurchase agreement (the “2013 ASR Agreement”). Under the terms of the 2013 ASR Agreement, upon payment of the purchase price, we received an initial delivery of 20.1 million shares of our common stock at a price of $67.16

48

per share, which represents, based on the closing share price of our common stock on Nasdaq on December 9, 2013, approximately 90% of the $1,500.0 million amount of the 2013 ASR Program. The final purchase price per share (the “forward price”) and the final number of shares received will be determined using the arithmetic mean of the daily volume-weighted average price of the Company’s common stock (the “VWAP”) over the term of the 2013 ASR Program less a discount granted under the ASR Agreement. The 2013 ASR Program will be completed in the second quarter of 2014, subject to the right of the investment bank to accelerate the settlement of the program.

Upon settlement of the 2013 ASR Program, we may receive additional shares, including for the remaining 10% of the $1,500.0 million amount of the 2013 ASR Program, or we may be required to pay additional cash for the initial shares received or re-deliver shares (at our option), based on the forward price beginning after the effective date of the 2013 ASR Agreement and ending on or about May 5, 2014, subject to the right of the investment bank to accelerate settlement of the 2013 ASR Agreement. Under the terms of the contract, the maximum number of shares that could be delivered by us is 44.7 million. If the 2013 ASR Program had been settled as of December 31, 2013, based on the VWAP since the effective date of the agreement, the investment bank would have been required to deliver an additional 2.3 million shares to us. These shares are not included in the calculation of diluted weighted-average common shares outstanding during the period because their effect was anti-dilutive.

The 2013 ASR Agreement is accounted for as an initial treasury stock transaction and a forward stock purchase contract. We recorded this transaction as an increase to treasury stock of $1,350.1 million, and recorded the remaining $149.9 million as a decrease to additional paid-in capital in the consolidated balance sheet at December 31, 2013. The $149.9 million recorded in additional paid-in capital will be reclassified to treasury stock upon completion of the 2013 ASR Program. The forward stock purchase contract is classified as an equity instrument under applicable accounting guidance and was deemed to have a fair value of zero at the effective date of the 2013 ASR Agreement. The initial delivery of shares resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share on the effective date of the 2013 ASR Agreement.

On May 27, 2011, ESI entered into agreements to repurchase shares of its common stock for an aggregate purchase price of $1,750.0 million under an Accelerated Share Repurchase agreement (the “2011 ASR Agreement”). The 2011 ASR Agreement consisted of two agreements providing for the repurchase of shares of ESI’s common stock worth $1,000.0 million and $750.0 million, respectively. Upon payment of the purchase price on May 27, 2011, ESI received 29.4 million shares of ESI’s common stock at a price of $59.53 per share. During the third quarter of 2011, we settled the $1,000.0 million portion of the 2011 ASR Agreement and received 1.9 million shares at a final forward price of $53.51 per share. During the fourth quarter of 2011, we settled $725.0 million of the $750.0 million portion of the 2011 ASR Agreement and received 2.1 million shares at a weighted-average final forward price of $50.69.

On April 27, 2012, we settled the remaining portion of the 2011 ASR Agreement and received 0.1 million additional shares, resulting in a total of 33.5 million shares received under the 2011 ASR Agreement. See Note 9 - Common stock for more information on the terms of the 2011 ASR Agreement.

SENIOR NOTES

Following the consummation of the Merger on April 2, 2012, several series of senior notes issued by Medco are reported as debt obligations of Express Scripts on a consolidated basis.

In February 2012, we issued $3,500.0 million of senior notes, including:

• $1,000.0 million aggregate principal amount of 2.100% senior notes due 2015

• $1,500.0 million aggregate principal amount of 2.650% senior notes due 2017

• $1,000.0 million aggregate principal amount of 3.900% senior notes due 2022

The net proceeds were used to pay a portion of the cash consideration paid in the Merger and to pay related fees and expenses (see Note 3 - Changes in business).

On November 14, 2011, we issued $4,100.0 million of senior notes, including:

• $900.0 million aggregate principal amount of 2.750% senior notes due 2014

• $1,250.0 million aggregate principal amount of 3.500% senior notes due 2016

• $1,250.0 million aggregate principal amount of 4.750% senior notes due 2021

• $700.0 million aggregate principal amount of 6.125% senior notes due 2041

The net proceeds were used to pay a portion of the cash consideration paid in the Merger and to pay related fees and expenses (see Note 3 - Changes in business).

49

On May 2, 2011, ESI issued $1,500.0 million aggregate principal amount of 3.125% senior notes due 2016. ESI used the proceeds to repurchase treasury shares.

On September 10, 2010, Medco issued $1,000.0 million of senior notes, including:

• $500.0 million aggregate principal amount of 2.750% senior notes due 2015

• $500.0 million aggregate principal amount of 4.125% senior notes due 2020

Medco used the net proceeds for general corporate purposes.

On June 9, 2009, ESI issued $2,500.0 million of senior notes, including:

• $1,000.0 million aggregate principal amount of 5.250% senior notes due 2012

• $1,000.0 million aggregate principal amount of 6.250% senior notes due 2014

• $500.0 million aggregate principal amount of 7.250% senior notes due 2019

ESI used the net proceeds for the acquisition of WellPoint’s NextRx PBM Business. On June 15, 2012, $1,000.0 million aggregate principal amount of the 5.250% senior notes due 2012 matured and were redeemed. On March 29, 2013, $1,000.0 million aggregate principal amount of the 6.250% senior notes due 2014 were redeemed.

On March 18, 2008, Medco issued $1,500.0 million of senior notes, including:

• $300.0 million aggregate principal amount of 6.125% senior notes due 2013

• $1,200.0 million aggregate principal amount of 7.125% senior notes due 2018

Medco used the net proceeds to reduce debts held on Medco’s revolving credit facility. On March 18, 2013, $300.0 million aggregate principal amount of the 6.125% senior notes due 2013 matured and were redeemed.

In August 2003, Medco issued $500.0 million aggregate principal amount of 7.250% senior notes due 2013 (the “August 2003 Senior Notes”). On May 7, 2012, the Company redeemed the August 2003 Senior Notes. Total cash payments related to these notes were $549.4 million comprised of principal, redemption costs and interest.

See Note 7 - Financing for more information on our Senior Notes borrowings.

BANK CREDIT FACILITY

On August 29, 2011, we entered into a credit agreement (the “credit agreement”) with a commercial bank syndicate providing for a five-year $4,000.0 million term loan facility (the “term facility”) and a $1,500.0 million revolving loan facility (the “revolving facility”). The term facility was used to pay a portion of the cash consideration paid in connection with the Merger, as discussed in Note 3 - Changes in business, to repay existing indebtedness and to pay related fees and expenses. Subsequent to consummation of the Merger on April 2, 2012, the revolving facility is available for general corporate purposes. The term facility and the revolving facility both mature on August 29, 2016. As of December 31, 2013, no amounts were drawn under the revolving facility. The Company makes quarterly principal payments on the term facility. Additionally, during the fourth quarter of 2012, the Company paid down $1,000.0 million of the term facility. As of December 31, 2013, $2,000.0 million was outstanding under the term facility with an average interest rate of 1.92%, of which $684.2 million is considered current maturities of long-term debt. Upon consummation of the Merger, Express Scripts assumed the obligations of ESI and became the borrower under the credit agreement.

Our credit agreements contain covenants which limit our ability to incur additional indebtedness, create or permit liens on assets, and engage in mergers, consolidations or disposals. The covenants also include a minimum interest coverage ratio and a maximum leverage ratio. At December 31, 2013, we believe we were in compliance in all material respects with all covenants associated with our credit agreements.

See Note 7 - Financing for more information on our credit facilities.

50

BRIDGE FACILITY

On August 5, 2011, ESI entered into a credit agreement with Credit Suisse AG, Cayman Islands Branch, as administrative agent, Citibank, N.A., as syndication agent, and the other lenders and agents named within the agreement. The credit agreement provided for a one-year unsecured $14,000.0 million bridge term loan facility (the “bridge facility”). No amounts were withdrawn under the bridge facility, and subsequent to consummation of the Merger on April 2, 2012, the bridge facility was terminated.

See Note 7 - Financing for more information on the bridge facility.

FIVE-YEAR CREDIT FACILITY

On April 30, 2007, Medco entered into a senior unsecured credit agreement, which was available for general working capital requirements. The facility consisted of an $1,000.0 million, 5-year senior unsecured term loan and a $2,000.0 million, 5-year senior unsecured revolving credit facility. The facility was due to mature on April 30, 2012. Medco refinanced the $2,000.00 million senior unsecured revolving credit facility on January 23, 2012. Upon completion of the Merger, the $1,000.0 million senior unsecured term loan and all associated interest, and the $1,000.0 million then outstanding under the senior unsecured revolving credit facility, were repaid in full and terminated.

See Note 7 - Financing for more information on the five-year credit facility.

ACCOUNTS RECEIVABLE FINANCING FACILITY

Upon consummation of the Merger, Express Scripts assumed a $600.0 million, 364-day renewable accounts receivable financing facility that was collateralized by Medco’s pharmaceutical manufacturer rebates accounts receivable. On September 21, 2012, Express Scripts terminated the facility and repaid all amounts drawn down.

See Note 7 - Financing for more information on the accounts receivable financing facility.

INTEREST RATE SWAP

Medco entered into five interest rate swap agreements in 2004. These swap agreements, in effect, converted $200.0 million of Medco’s $500.0 million of 7.250% senior notes due 2013 to variable interest rate debt. Under the terms of these swap agreements, Medco received a fixed rate of interest of 7.250% on $200.0 million and paid variable interest rates based on the six-month LIBOR plus a weighted-average spread of 3.050%. The payment dates under the agreements coincided with the interest payment dates on the hedged debt instruments and the difference between the amounts paid and received was included in interest expense. These swaps were settled on May 7, 2012. Express Scripts received $10.1 million for settlement of the swaps and the associated accrued interest receivable through May 7, 2012 and recorded a loss of $1.5 million related to the carrying amount of the swaps and bank fees.

See Note 7 - Financing for more information on the interest rate swap.

51

CONTRACTUAL OBLIGATIONS AND COMMERCIAL COMMITMENTS

The following table sets forth our schedule of current maturities of our long-term debt as of December 31, 2013, future minimum lease payments due under noncancellable operating leases of our continuing operations and purchase commitments (in millions):

	Payments Due by Period as of December 31, 2013
	Total		2014		2015-2016		2017-2018		Thereafter
Long-term debt(1)	$	17,006.9	$	2,057.8	$	6,394.6	$	3,244.4	$	5,310.1
Future minimum operating lease payments	366.1		85.0		114.6		81.0		85.5
Future minimum capital lease payments	43.4		14.4		28.8		0.2		—
Purchase commitments(2)	610.7		425.3		160.1		25.3		—
Total contractual cash obligations	$	18,027.1	$	2,582.5	$	6,698.1	$	3,350.9	$	5,395.6

(1) These payments exclude the interest expense on our revolving credit facility, which requires us to pay interest on LIBOR plus a margin. Our interest payments fluctuate with changes in LIBOR and in the margin over LIBOR we are required to pay (see “Part II — Item 7 — Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Bank Credit Facility”), as well as the balance outstanding on our revolving credit facility. Interest payments on our Senior Notes are fixed, and have been included in these amounts.

(2) These amounts consist of required future purchase commitments for materials, supplies, services and fixed assets in the normal course of business. We do not expect potential payments under these provisions to materially affect results of operations or financial condition. This conclusion is based upon reasonably likely outcomes derived by reference to historical experience and current business plans.

The gross liability for uncertain tax positions which could result in future payments is $516.6 million and $500.8 million as of December 31, 2013 and 2012, respectively. We are not able to provide a reasonably reliable estimate of the timing of future payments relating to the noncurrent obligations. Our net long-term deferred tax liability is $5,440.6 million and $5,936.5 million as of December 31, 2013 and 2012, respectively. Scheduling payments for deferred tax liabilities could be misleading since future settlements of these amounts are not the sole determining factor of cash taxes to be paid in future periods.

IMPACT OF INFLATION

Changes in prices charged by manufacturers and wholesalers for pharmaceuticals affect our revenues and cost of revenues. Most of our contracts provide that we bill clients based on a generally recognized price index for pharmaceuticals.

Item 7A — Quantitative and Qualitative Disclosures About Market Risk

We are exposed to market risk from changes in interest rates related to debt outstanding under our credit agreement. Our earnings are subject to change as a result of movements in market interest rates. At December 31, 2013, we had $2,000.0 million of gross obligations, or $8.6 million net of cash, which were subject to variable rates of interest under our credit agreement. A hypothetical increase in interest rates of 1% would result in an increase in annual interest expense of approximately $20.0 million (pre-tax), assuming that obligations subject to variable interest rates remained constant.

52

Item 8 — Consolidated Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Express Scripts Holding Company:

In our opinion, the consolidated financial statements listed in the index appearing under Item 15(1) present fairly, in all material respects, the financial position of Express Scripts Holding Company and its subsidiaries at December 31, 2013 and December 31, 2012, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2013 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the index appearing under Item 15(2) presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control—Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on these financial statements, on the financial statement schedule and on the Company’s internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP

St. Louis, Missouri

February 20, 2014

53

EXPRESS SCRIPTS HOLDING COMPANY CONSOLIDATED BALANCE SHEET
	December 31,
(in millions)	2013			2012
Assets
Current assets:
Cash and cash equivalents	$	1,991.4		$	2,793.1
Restricted cash and investments	22.8			19.6
Receivables, net	4,022.9			5,425.8
Inventories	1,871.1			1,652.1
Deferred taxes	455.4			400.6
Prepaid expenses and other current assets	96.8			194.3
Current assets of discontinued operations	31.0			271.4
Total current assets	8,491.4			10,756.9
Property and equipment, net	1,658.9			1,632.1
Goodwill	29,305.4			29,320.4
Other intangible assets, net	14,015.6			16,037.9
Other assets	76.9			56.1
Noncurrent assets of discontinued operations	—			307.8
Total assets	$	53,548.2		$	58,111.2
Liabilities and stockholders’ equity
Current liabilities:
Claims and rebates payable	$	6,767.8		$	7,440.0
Accounts payable	2,900.0			2,898.9
Accrued expenses	1,982.2			1,632.9
Current maturities of long-term debt	1,584.0			934.9
Current liabilities of discontinued operations	1.3			150.7
Total current liabilities	13,235.3			13,057.4
Long-term debt	12,363.0			14,980.1
Deferred taxes	5,440.6			5,936.5
Other liabilities	664.4			692.9
Noncurrent liabilities of discontinued operations	0.1			48.6
Total liabilities	31,703.4			34,715.5
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, 15.0 shares authorized, $0.01 par value per share; and no shares issued and outstanding	—			—
Common stock, 2,985.0 shares authorized, $0.01 par value; shares issued: 834.0 and 818.1, respectively; shares outstanding: 773.6 and 818.1, respectively	8.3			8.2
Additional paid-in capital	21,809.9			21,289.7
Accumulated other comprehensive income	11.7			18.9
Retained earnings	3,912.8			2,068.2
	25,742.7			23,385.0
Common stock in treasury at cost, 60.4 and zero shares, respectively	(3,905.3		)	—
Total Express Scripts stockholders’ equity	21,837.4			23,385.0
Non-controlling interest	7.4			10.7
Total stockholders’ equity	21,844.8			23,395.7
Total liabilities and stockholders’ equity	$	53,548.2		$	58,111.2

See accompanying Notes to Consolidated Financial Statements

54

EXPRESS SCRIPTS HOLDING COMPANY CONSOLIDATED STATEMENT OF OPERATIONS
	Year Ended December 31,
(in millions, except per share data)	2013			2012			2011
Revenues(1)	$	104,098.8		$	93,714.3		$	46,128.3
Cost of revenues(1)	95,966.4			86,402.4			42,918.4
Gross profit	8,132.4			7,311.9			3,209.9
Selling, general and administrative	4,580.7			4,518.0			895.5
Operating income	3,551.7			2,793.9			2,314.4
Other (expense) income:
Equity income from joint venture	32.8			14.9			—
Interest income	41.9			10.6			12.4
Interest expense and other	(596.1		)	(619.0		)	(299.7		)
	(521.4		)	(593.5		)	(287.3		)
Income before income taxes	3,030.3			2,200.4			2,027.1
Provision for income taxes	1,104.0			838.0			748.6
Net income from continuing operations	1,926.3			1,362.4			1,278.5
Net loss from discontinued operations, net of tax	(53.6		)	(32.3		)	—
Net income	1,872.7			1,330.1			1,278.5
Less: Net income attributable to non-controlling interest	28.1			17.2			2.7
Net income attributable to Express Scripts	$	1,844.6		$	1,312.9		$	1,275.8
Weighted-average number of common shares outstanding during the period:
Basic	808.6			731.3			500.9
Diluted	821.6			747.3			505.0
Basic earnings (loss) per share:
Continuing operations attributable to Express Scripts	$	2.35		$	1.84		$	2.55
Discontinued operations attributable to Express Scripts	(0.07		)	(0.04		)	—
Net earnings attributable to Express Scripts	2.28			1.80			2.55
Diluted earnings (loss) per share:
Continuing operations attributable to Express Scripts	$	2.31		$	1.80		$	2.53
Discontinued operations attributable to Express Scripts	(0.07		)	(0.04		)	—
Net earnings attributable to Express Scripts	2.25			1.76			2.53
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	1,898.2		$	1,345.2		$	1,275.8
Discontinued operations, net of tax	(53.6		)	(32.3		)	—
Net income attributable to Express Scripts shareholders	$	1,844.6		$	1,312.9		$	1,275.8

(1) Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

See accompanying Notes to Consolidated Financial Statements

55

EXPRESS SCRIPTS HOLDING COMPANY CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
	Year Ended December 31,
(in millions)	2013			2012		2011
Net income	$	1,872.7		$	1,330.1	$	1,278.5
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(7.2		)	1.9		(2.8		)
Comprehensive income	1,865.5			1,332.0		1,275.7
Less: Comprehensive income attributable to non-controlling interests	28.1			17.2		2.7
Comprehensive income attributable to Express Scripts	$	1,837.4		$	1,314.8	$	1,273.0

See accompanying Notes to Consolidated Financial Statements

56

EXPRESS SCRIPTS HOLDING COMPANY CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY
	Number of Shares		Amount
(in millions)	Common Stock		Common Stock			Additional Paid-in Capital			Accumulated Other Comprehensive Income			Retained Earnings			Treasury Stock			Non- controlling interest			Total
Balance at December 31, 2010	690.2		$	6.9		$	2,354.4		$	19.8		$	5,369.8		$	(4,144.3	)	$	—		$	3,606.6
Net income	—		—			—			—			1,275.8			—			2.7			1,278.5
Other comprehensive loss	—		—			—			(2.8		)	—			—			—			(2.8		)
Treasury stock acquired	—		—			—			—			—			(2,515.7		)	—			(2,515.7		)
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes	0.5		—			(11.6		)	—			—			8.4			—			(3.2		)
Amortization of unearned compensation under employee plans	—		—			48.8			—			—			—			—			48.8
Exercise of stock options	—		—			18.3			—			—			17.6			—			35.9
Tax benefit relating to employee stock compensation	—		—			28.3			—			—			—			—			28.3
Distributions to non-controlling interest	—		—			—			—			—			—			(1.1		)	(1.1		)
Balance at December 31, 2011	690.7		$	6.9		$	2,438.2		$	17.0		$	6,645.6		$	(6,634.0	)	$	1.6		$	2,475.3
Net income	—		—			—			—			1,312.9			—			17.2			1,330.1
Other comprehensive income	—		—			—			1.9			—			—			—			1.9
Cancellation of treasury shares in connection with Merger activity	(204.7	)	(2.0		)	(728.5		)	—			(5,890.3		)	6,620.8			—			—
Issuance of common shares in connection with Merger activity	318.0		3.2			18,841.6			—			—			—			—			18,844.8
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes	14.1		0.1			(104.8		)	—			—			—			—			(104.7		)
Amortization of unearned compensation under employee plans	—		—			410.0			—			—			—			—			410.0
Exercise of stock options	—		—			387.9			—			—			13.2			—			401.1
Tax benefit relating to employee stock compensation	—		—			45.3			—			—			—			—			45.3
Distributions to non-controlling interest	—		—			—			—			—			—			(8.1		)	(8.1		)
Balance at December 31, 2012	818.1		$	8.2		$	21,289.7		$	18.9		$	2,068.2		$	—		$	10.7		$	23,395.7
Net income	—		—			—			—			1,844.6			—			28.1			1,872.7
Other comprehensive loss	—		—			—			(7.2		)	—			—			—			(7.2		)
Treasury stock acquired	—		—			(149.9		)	—			—			(3,905.3		)	—			(4,055.2		)
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes	15.9		0.1			(49.7		)	—			—			—			—			(49.6		)
Amortization of unearned compensation under employee plans	—		—			164.7			—			—			—			—			164.7
Exercise of stock options	—		—			524.0			—			—			—			—			524.0
Tax benefit relating to employee stock compensation	—		—			31.1			—			—			—			—			31.1
Distributions to non-controlling interest	—		—			—			—			—			—			(31.4		)	(31.4		)
Balance at December 31, 2013	834.0		$	8.3		$	21,809.9		$	11.7		$	3,912.8		$	(3,905.3	)	$	7.4		$	21,844.8

See accompanying Notes to Consolidated Financial Statements

57

EXPRESS SCRIPTS HOLDING COMPANY CONSOLIDATED STATEMENT OF CASH FLOWS
	Year Ended December 31,
(in millions)	2013			2012			2011
Cash flows from operating activities:
Net income	$	1,872.7		$	1,330.1		$	1,278.5
Net loss from discontinued operations, net of tax	53.6			32.3			—
Net income from continuing operations	1,926.3			1,362.4			1,278.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,447.0			1,871.4			253.4
Deferred income taxes	(573.7		)	(389.0		)	137.8
Employee stock-based compensation expense	164.7			410.0			48.8
Other, net	29.2			70.5			97.1
Changes in operating assets and liabilities
Accounts receivable	1,254.0			345.7			(206.1		)
Inventories	(218.9		)	(515.0		)	8.0
Other current and noncurrent assets	94.2			303.2			119.2
Claims and rebates payable	(672.2		)	82.8			207.5
Accounts payable	15.9			963.1			271.4
Other current and noncurrent liabilities	302.4			246.0			(22.5		)
Net cash provided by operating activities—continuing operations	4,768.9			4,751.1			2,193.1
Net cash (used in) provided by operating activities—discontinued operations	(11.4		)	30.5			—
Net cash flows provided by operating activities	4,757.5			4,781.6			2,193.1
Cash flows from investing activities:
Purchases of property and equipment	(423.0		)	(160.2		)	(144.4		)
Proceeds from the sale of business	356.9			61.5			—
Acquisitions, net of cash acquired	(14.5		)	(10,326.0		)	—
Other	10.6			(4.0		)	20.5
Net cash used in investing activities—continuing operations	(70.0		)	(10,428.7		)	(123.9		)
Acquisitions, cash acquired—discontinued operations	—			42.4			—
Net cash used in investing activities—discontinued operations	(2.1		)	(5.4		)	—
Net cash used in investing activities	(72.1		)	(10,391.7		)	(123.9		)
Cash flows from financing activities:
Treasury stock acquired	(4,055.2		)	—			(2,515.7		)
Repayment of long-term debt	(1,931.6		)	(3,868.5		)	(0.1		)
Net proceeds from employee stock plans	466.0			326.0			32.2
Excess tax benefit relating to employee stock-based compensation	42.7			45.3			28.3
Distributions paid to non-controlling interest	(31.7		)	(8.1		)	(1.1		)
Proceeds from long-term debt, net of discounts	—			7,458.9			5,580.3
Repayment of revolving credit line, net	—			(1,000.0		)	—
Proceeds from accounts receivable financing facility	—			600.0			—
Repayment of accounts receivable financing facility	—			(600.0		)	—
Deferred financing fees	—			(103.2		)	(91.6		)
Other	15.0			—			(2.9		)
Net cash (used in) provided by financing activities—continuing operations	(5,494.8		)	2,850.4			3,029.4
Net cash used in financing activities—discontinued operations	—			(26.8		)	—
Net cash (used in) provided by financing activities	(5,494.8		)	2,823.6			3,029.4
Effect of foreign currency translation adjustment	(5.7		)	2.0			(2.2		)
Less cash decrease (increase) attributable to discontinued operations	13.4			(42.5		)	—
Net (decrease) increase in cash and cash equivalents	(801.7		)	(2,827.0		)	5,096.4
Cash and cash equivalents at beginning of year	2,793.1			5,620.1			523.7
Cash and cash equivalents at end of year	$	1,991.4		$	2,793.1		$	5,620.1
Supplemental data:
Cash paid during the year for:
Income tax payments, net of refunds	$	1,648.4		$	1,164.0		$	487.3
Interest	548.1			587.3			181.6

See accompanying Notes to Consolidated Financial Statements

58

EXPRESS SCRIPTS HOLDING COMPANY

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

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

59

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).

60

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

61

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

62

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

63

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.

64

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.

65

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.

2. Fair value measurements

FASB guidance regarding fair value measurement establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than quoted prices for similar assets and liabilities in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions.

Financial assets accounted for at fair value on a recurring basis include cash equivalents of $845.2 million and $1,572.3 million, restricted cash and investments of $22.8 million and $19.6 million, and trading securities (included in other assets) of $18.7 million and $15.8 million, at December 31, 2013 and 2012, respectively. These assets are carried at fair value based on quoted market prices in active markets for identical securities (Level 1 inputs). Cash equivalents include investments in AAA-rated money market mutual funds with maturities of less than 90 days.

FASB guidance allows a company to elect to measure eligible financial assets and financial liabilities at fair value. Unrealized gains and losses on items for which the fair value option has been elected are reported in earnings at each subsequent reporting date. Eligible items include, but are not limited to, accounts and loans receivable, equity method investments, accounts payable, guarantees, issued debt and firm commitments. Currently, we have not elected to account for any of our eligible items using the fair value option under this guidance.

66

The carrying value of cash and cash equivalents (Level 1), restricted cash and investments (Level 1), 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 (Level 2) was estimated using the current rates offered to us for debt with similar maturity. The carrying values and the fair values of our senior notes are shown, net of unamortized discounts and premiums, in the following table:

	December 31, 2013				December 31, 2012
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
March 2008 Senior Notes
7.125% senior notes due 2018	$	1,378.5	$	1,420.4	$	1,417.2	$	1,497.3
6.125% senior notes due 2013	—		—		303.3		303.0
	1,378.5		1,420.4		1,720.5		1,800.3
June 2009 Senior Notes
6.250% senior notes due 2014	—		—		998.7		1,076.4
7.250% senior notes due 2019	497.9		607.8		497.6		645.1
	497.9		607.8		1,496.3		1,721.5
September 2010 Senior Notes
2.750% senior notes due 2015	506.9		514.9		510.9		522.4
4.125% senior notes due 2020	506.8		519.7		507.6		546.1
	1,013.7		1,034.6		1,018.5		1,068.5
May 2011 Senior Notes
3.125% senior notes due 2016	1,497.0		1,566.2		1,495.8		1,590.2
November 2011 Senior Notes
3.500% senior notes due 2016	1,249.8		1,324.4		1,249.7		1,347.8
4.750% senior notes due 2021	1,241.2		1,325.4		1,240.3		1,425.7
2.750% senior notes due 2014	899.7		917.1		899.4		930.8
6.125% senior notes due 2041	698.4		801.0		698.4		894.6
	4,089.1		4,367.9		4,087.8		4,598.9
February 2012 Senior Notes
2.650% senior notes due 2017	1,490.7		1,548.0		1,487.9		1,559.6
2.100% senior notes due 2015	998.1		1,014.4		996.5		1,023.7
3.900% senior notes due 2022	981.9		1,003.4		980.0		1,073.3
	3,470.7		3,565.8		3,464.4		3,656.6
Total	$	11,946.9	$	12,562.7	$	13,283.3	$	14,436.0

The fair values of our senior notes were estimated based on observable market information (Level 2). In determining the fair value of liabilities, we took into consideration the risk of nonperformance. Nonperformance risk refers to the risk that the obligation will not be fulfilled and affects the value at which the liability would be transferred to a market participant. This risk did not have a material impact on the fair value of our liabilities.

3. Changes in business

Acquisitions. As a result of the Merger on April 2, 2012, Medco and ESI each became 100% owned subsidiaries of Express Scripts and former Medco and ESI stockholders became owners of Express Scripts stock, which is listed on the Nasdaq. Upon closing of the Merger, former ESI stockholders owned approximately 59% of Express Scripts and former Medco stockholders owned approximately 41% of Express Scripts. Per the terms of the Merger Agreement, upon consummation of the Merger on April 2, 2012, each share of Medco common stock was converted into (i) the right to receive $28.80 in cash, without interest and (ii) 0.81 shares of Express Scripts stock. Holders of Medco stock options, restricted stock units and deferred stock units received replacement awards at an exchange ratio of 1.3474 Express Scripts stock awards for each Medco award owned, which is equal to the sum of (i) 0.81 and (ii) the quotient obtained by dividing (1) $28.80 (the cash component of the Merger

67

consideration) by (2) an amount equal to the average of the closing prices of ESI common stock on the Nasdaq for each of the 15 consecutive trading days ending with the fourth complete trading day prior to the completion of the Merger.

Based on the opening price of Express Scripts’ stock on April 2, 2012, the purchase price was comprised of the following:

(in millions)
Cash paid to Medco stockholders(1)	$	11,309.6
Value of shares of common stock issued to Medco stockholders(2)	17,963.8
Value of stock options issued to holders of Medco stock options(3)(4)	706.1
Value of restricted stock units issued to holders of Medco restricted stock units(3)	174.9
Total consideration	$	30,154.4

(1) Equals Medco outstanding shares multiplied by $28.80 per share.

(2) Equals Medco outstanding shares immediately prior to the Merger multiplied by the exchange ratio of 0.81, multiplied by the Express Scripts opening share price on April 2, 2012 of $56.49.

(3) In accordance with applicable accounting guidance, the fair value of replacement awards attributable to pre-combination service is recorded as part of the consideration transferred in the Merger, while the fair value of replacement awards attributable to post-combination service is recorded separately from the business combination and recognized as compensation cost in the post-acquisition period over the remaining service period.

(4) The fair value of the Company’s equivalent stock options was estimated using the Black-Scholes valuation model utilizing various assumptions. The expected volatility of the Company’s common stock price is a blended rate based on the average historical volatility over the expected term based on daily closing stock prices of ESI and Medco common stock. The expected term of the option is based on Medco historical employee stock option exercise behavior as well as the remaining contractual exercise term.

The consolidated statement of operations for Express Scripts for the year ended December 31, 2012 following consummation of the Merger on April 2, 2012 includes Medco’s total revenues for continuing operations of $45,763.5 million and net income of $290.7 million, which includes integration expense and amortization.

The following unaudited pro forma information presents a summary of Express Scripts’ combined results of continuing operations for the years ended December 31, 2012 and 2011 as if the Merger and related financing transactions had occurred at January 1, 2011. The following pro forma financial information is not necessarily indicative of the results of operations as it would have been had the transactions been effected on the assumed date, nor is it necessarily an indication of trends in future results for a number of reasons, including, but not limited to, differences between the assumptions used to prepare the pro forma information, basic shares outstanding and dilutive equivalents, cost savings from operating efficiencies, potential synergies and the impact of incremental costs incurred in integrating the businesses:

	Year Ended December 31,
(in millions, except per share data)	2012		2011
Total revenues	$	109,639.2	$	115,463.4
Net income attributable to Express Scripts	1,345.5		719.8
Basic earnings per share from continuing operations	1.69		0.88
Diluted earnings per share from continuing operations	$	1.66	$	0.87

Pro forma net income for the year ended December 31, 2011 includes total non-recurring amounts of $1,192.2 million related to severance payments, accelerated stock-based compensation and transaction and integration costs incurred in connection with the Merger.

The Merger was accounted for under the acquisition method of accounting with ESI treated as the acquirer for accounting purposes. The purchase price was allocated based on the estimated fair value of net assets acquired and liabilities assumed at the date of the acquisition.

During the first quarter ended March 31, 2013, the Company made refinements to its preliminary allocation of purchase price related to accrued liabilities due to the finalization of assumptions utilized to value the liabilities acquired. These adjustments had the effect of increasing current assets and other noncurrent liabilities and decreasing goodwill, deferred tax liabilities and current liabilities.

68

Express Scripts finalized the purchase price allocation and push down accounting as of March 31, 2013. The following table summarizes Express Scripts’ estimates of the fair values of the assets acquired and liabilities assumed in the Merger:

(in millions)	Amounts Recognized as of Acquisition Date
Current assets	$	6,934.9
Property and equipment	1,390.6
Goodwill	23,965.6
Acquired intangible assets	16,216.7
Other noncurrent assets	48.3
Current liabilities	(8,966.4		)
Long-term debt	(3,008.3		)
Deferred income taxes	(5,875.2		)
Other noncurrent liabilities	(551.8		)
Total	$	30,154.4

A portion of the excess of purchase price over tangible net assets acquired was allocated to intangible assets consisting of customer contracts in the amount of $15,935.0 million with an estimated weighted-average amortization period of 16 years. Additional intangible assets consist of trade names in the amount of $273.0 million with an estimated weighted-average amortization period of 10 years and miscellaneous intangible assets of $8.7 million with an estimated weighted-average amortization period of 5 years. The acquired intangible assets have been valued using an income approach and are being amortized on a basis that approximates the pattern of benefit.

The excess of purchase price over tangible net assets and identified intangible assets acquired was allocated to goodwill in the amount of $23,965.6 million. The majority of the goodwill recognized as part of the Merger is reported under our PBM segment and reflects our expected synergies from combining operations, such as improved economies of scale and cost savings. Goodwill recognized is not expected to be deductible for income tax purposes and is not amortized.

As a result of the Merger on April 2, 2012, we acquired the receivables of Medco. The gross contractual amounts receivable and fair value of these receivables as of the acquisition date are shown below. Of the gross amounts due under the contracts as of the date of acquisition, we estimated $43.6 million related to client accounts receivables to be uncollectible.

(in millions)	Gross Contractual Amounts Receivable		Fair Value
Manufacturer Accounts Receivables	$	1,895.2	$	1,895.2
Client Accounts Receivables	2,432.2		2,388.6
Total	$	4,327.4	$	4,283.8

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 and have recorded equity income of $32.8 million and $14.9 million for the years ended December 31, 2013 and 2012, respectively. Our investment in Surescripts (approximately $30.2 million and $11.9 million as of December 31, 2013 and 2012, respectively) is recorded in “Other assets” in our consolidated balance sheet.

69

4. Dispositions

During 2012 and 2013, we determined various businesses were no longer core to our future operations and committed to a plan to dispose of these businesses. As a result, during 2013 we sold our acute infusion therapies line of business and various portions of our UBC line of business and during 2012 we sold EAV, Liberty and CYC. In accordance with applicable accounting guidance, we have also determined our European operations to be classified as held for sale. Prior to the sales of our acute infusion therapies line of business, EAV and Liberty, goodwill and intangible impairment charges were recorded. Below is a summary of 2013 and 2012 charges associated with these businesses and the impact to our consolidated statement of operations:

	December 31, 2013					December 31, 2012
(in millions)	Gain recorded upon sale		Goodwill & Intangible Impairments			Gain recorded upon sale		Goodwill & Intangible Impairments
EAV	$	—	$	—		$	3.7	$	(11.5	)
Disposed UBC operations
Technology solutions and publications for biopharmaceutical companies	18.3		—			—		—
Health economics, outcomes research, data analytics and market access services	11.4		—			—		—
Specialty services for pre-market trials	22.1		—			—		—
Acute infusion therapies line of business	0.5		(32.9		)	—		—
Recorded in net loss from discontinued operations, net of tax	$	52.3	$	(32.9	)	$	3.7	$	(11.5	)
Liberty	$	—	$	—		$	0.5	$	(23.0	)
CYC(1)	3.5		—			14.3		—
Recorded in selling, general and administrative	$	3.5	$	—		$	14.8	$	(23.0	)
Total disposition charges	$	55.8	$	(32.9	)	$	18.5	$	(34.5	)

(1) Reflects the settlement of certain working capital balances in 2013.

Sale of our acute infusion therapies line of business. On November 1, 2013, we completed the sale of our acute infusion therapies line of business, which was included within our PBM segment before being classified as a discontinued operation as of September 30, 2013. During the fourth quarter of 2013, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $0.5 million. The gain is included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2013.

In 2013, in connection with entering into an agreement for the sale of the business, an impairment in the value of the related goodwill was identified. The impairment charge, which totaled $32.9 million, was recorded and reflects goodwill impairment and the subsequent write-down to fair market value. The fair value was determined utilizing the contracted sales price of the business (Level 2). The impairment charge is included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2013.

Sale of portions of UBC. On August 15, 2013, we completed the sale of the portion of our UBC business related to specialty services for pre-market trials located in Wayne, Pennsylvania. During the third quarter of 2013, we recognized a gain on the sale of this business which totaled $22.1 million. 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 located in Bethesda, Maryland. During the third quarter of 2013, we recognized a gain on the sale of this business which totaled $11.4 million. On June 7, 2013, we completed the sale of the portion of our UBC business which primarily provided technology solutions and publications for biopharmaceutical companies located in Horsham, United Kingdom. During the second quarter of 2013, we recognized a gain on the sale of this business which totaled $18.3 million. The gains on these businesses are included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2013. Our disposed UBC operations were included within our Other Business Operations segment before being classified as discontinued operations as of December 31, 2012.

70

Sale of EAV. On December 4, 2012, we completed the sale of our EAV line of business, which primarily provided home delivery pharmacy services in Germany. During the fourth quarter of 2012, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $3.7 million. The gain is included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2012. Prior to being classified as a discontinued operation, EAV was included in our Other Business Operations segment.

In 2012, the Company determined it was necessary to reassess carrying values of EAV’s assets and liabilities based on a change in business environment related to an adverse court ruling by the German high court in August 2012 and the expected disposal of EAV as a result of the ruling (Level 2). Based on the assessment, we recorded impairment charges associated with this line of business totaling $11.5 million to reflect the write-down of $2.0 million of goodwill and $9.5 million of intangible assets. These charges are included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2012.

Sale of Liberty. On December 3, 2012, we completed the sale of our Liberty line of business, which is included within our Other Business Operations segment. Liberty sells diabetes testing supplies and is located in Port St. Lucie, Florida. Following the sale, Express Scripts will work as a back-end pharmacy supplier for portions of the Liberty business for a minimum of two years. Therefore, the Company retains certain cash flows associated with Liberty following the sale which preclude classification of this business as a discontinued operation. During the fourth quarter of 2012, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $0.5 million. The gain is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2012.

In 2012, as a result of our plan to dispose of Liberty, an impairment charge totaling $23.0 million was recorded against intangible assets. The fair value was determined utilizing the contracted sales price of the business (Level 2). This charge is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2012. The write-down was comprised of impairments to customer relationships with a carrying value of $24.2 million and trade names with a carrying value of $6.6 million.

From the date of Merger through the date of disposal, Liberty’s revenue totaled $323.9 million and operating loss totaled $32.3 million. As Liberty was sold in 2012, no associated assets or liabilities were held as of December 31, 2012.

Sale of CYC. On September 14, 2012, we completed the sale of our CYC line of business, which is included within our Other Business Operations segment. Upon completion of the sale, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $14.3 million. The gain is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2012. During the first quarter of 2013, certain working capital balances were settled, resulting in a $3.5 million gain. The gain is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2013.

We determined that the results of operations for CYC for 2012 and 2011 were immaterial to both consolidated and segment results of operations, and we have therefore not presented these results separately as discontinued operations for the current or prior periods. Operating income (loss), including the gain associated with the sale, totaled $14.7 million and less than $(0.1) million for the years ended December 31, 2012 and 2011, respectively. Total assets for CYC as of December 31, 2011 were $36.9 million. The majority of these assets represented goodwill of $12.0 million and cash of $14.9 million. As these amounts represented less than 0.1% of total consolidated assets, the assets were not classified as held for sale within the consolidated balance sheet.

Held for sale classification of Europe. During the fourth quarter of 2012, we determined that our operations in Europe, which were included within our Other Business Operations segment, were not core to our future operations and committed to a plan to dispose of this business. As a result, this business was classified as discontinued as of December 31, 2012. Our European operations primarily consisted of clinical and specialty pharmacy management services. It is expected that our European operations will be shut down in the first half of 2014.

71

Select financial information. The results of operations for our acute infusion therapies line of business, portions of UBC, as defined above, EAV and our European operations are reported as discontinued operations for all periods presented in the accompanying consolidated statement of operations in accordance with applicable accounting guidance. As such, results of operations for the year ended December 31, 2013 and 2012 reflect these operations as discontinued. As the discontinued operations were acquired through the Merger, results of operations for the period beginning January 1, 2012 through April 1, 2012 do not include these operations in our accompanying consolidated statement of operations. Additionally, for all periods presented, cash flows of our discontinued operations are segregated in our accompanying consolidated statement of cash flows. Finally, assets and liabilities of these businesses held were segregated in our accompanying consolidated balances sheet as of December 31, 2013 and 2012. The major components of assets and liabilities of these discontinued operations are as follows:

	December 31,
(in millions)	2013		2012
Current assets	$	31.0	$	271.4
Goodwill	—		127.9
Other intangible assets, net	—		157.4
Other assets	—		22.5
Total assets	$	31.0	$	579.2
Current liabilities	$	1.3	$	150.7
Deferred taxes	—		44.9
Other liabilities	0.1		3.7
Total liabilities	$	1.4	$	199.3

Select statement of operations information. Certain information with respect to discontinued operations, as defined above, for the years ended December 31, 2013 and 2012 is summarized below. There were no discontinued operations for the year ended December 31, 2011.

(in millions)	2013			2012
Revenues	$	521.2		$	702.3
Operating loss	(24.9		)	(22.7		)
Income tax expense from discontinued operations	(28.7		)	(7.5		)
Net loss from discontinued operations, net of tax	$	(53.6	)	$	(32.3	)

5. Property and equipment

Property and equipment of our continuing operations consists of the following:

	December 31,
(in millions)	2013			2012
Land and buildings	$	215.8		$	216.4
Furniture	71.6			66.6
Equipment(1)	707.5			542.5
Computer software	1,582.3			1,321.3
Leasehold improvements	173.4			179.1
Total property and equipment	2,750.6			2,325.9
Less accumulated depreciation(1)	(1,091.7		)	(693.8		)
Property and equipment, net	$	1,658.9		$	1,632.1

(1) Includes gross assets of $58.1 million and accumulated depreciation of $5.5 million related to capital lease assets as of December 31, 2013.

Depreciation expense for our continuing operations in 2013, 2012 and 2011 was $428.8 million, $283.0 million and $98.6 million, respectively. Internally developed software, net of accumulated amortization, for our continuing operations was $619.9 million and $743.5 million at December 31, 2013 and 2012, respectively. We capitalized $62.9 million of internally developed software during 2013.

72

In November 2012, we entered into a four-year capital lease for equipment to be used in our Fair Lawn, New Jersey facility, with a commencement date of January 1, 2013. The assets obtained with the capital lease are included in the Equipment line disclosed in the table above. As of December 31, 2013, the capitalized lease obligation was $42.0 million (see Note 12 - Commitments and contingencies).

Under certain of our operating leases for facilities in which we operate home delivery and specialty pharmacies, we are required to remove improvements and equipment upon surrender of the property to the landlord and convert the facilities back to office space. Our asset retirement obligation for our continuing operations was $10.1 million and $4.9 million at December 31, 2013 and 2012, respectively.

In the first quarter of 2011, we ceased fulfilling prescriptions from our home delivery dispensing pharmacy in Bensalem, Pennsylvania. We are currently in the process of closing this facility, which is scheduled to be completed in 2014.

6. Goodwill and other intangibles

The following is a summary of our goodwill and other intangible assets for our two reportable segments, PBM and Other Business Operations.

	December 31, 2013							December 31, 2012(1)
(in millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Goodwill
PBM(2)	$	29,315.4	$	(107.4	)	$	29,208.0	$	29,330.4	$	(107.4	)	$	29,223.0
Other Business Operations	97.4		—			97.4		97.4		—			97.4
	$	29,412.8	$	(107.4	)	$	29,305.4	$	29,427.8	$	(107.4	)	$	29,320.4
Other intangible assets
PBM
Customer contracts(3)	$	17,602.3	$	(3,926.2	)	$	13,676.1	$	17,672.7	$	(2,038.3	)	$	15,634.4
Trade names	226.6		(39.0		)	187.6		226.6		(16.7		)	209.9
Miscellaneous(4)	111.6		(47.4		)	64.2		121.6		(34.9		)	86.7
	17,940.5		(4,012.6		)	13,927.9		18,020.9		(2,089.9		)	15,931.0
Other Business Operations
Customer relationships(5)	127.3		(69.2		)	58.1		138.5		(63.2		)	75.3
Trade names	35.8		(6.2		)	29.6		34.7		(3.1		)	31.6
	163.1		(75.4		)	87.7		173.2		(66.3		)	106.9
Total other intangible assets	$	18,103.6	$	(4,088.0	)	$	14,015.6	$	18,194.1	$	(2,156.2	)	$	16,037.9

(1) Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

(2) PBM goodwill associated with the Merger has been reduced by $12.7 million due to finalization of the purchase price allocation during the first quarter of 2013.

(3) Changes in gross PBM customer contracts and related accumulated amortization reflect a decrease of $84.4 million related to the write-off of fully depreciated assets. Changes in PBM customer contracts also reflect an increase of $14.5 million related to the SmartD asset acquisition, as discussed below.

(4) Changes in gross miscellaneous intangible assets and related accumulated amortization reflect a decrease of $10.0 million following the write-off of deferred financing fees related to the early repayment and the redemption of senior notes. See Note 7 - Financing for additional information.

(5) Changes in gross customer relationships and related accumulated amortization reflect a decrease of $11.2 million. These balances reflect amounts written off and have no net impact on the net other intangible assets balance.

73

A summary of the change in the net carrying value of goodwill by business segment is shown in the following table:

(in millions)	PBM			Other Business Operations			Total
Balance at December 31, 2011	$	5,405.2		$	80.5		$	5,485.7
Acquisitions(1)	23,856.5			121.8			23,978.3
Discontinued operations(2)	(39.4		)	(88.5		)	(127.9		)
Dispositions(3)	—			(14.0		)	(14.0		)
Foreign currency translation and other	0.7			(2.4		)	(1.7		)
Balance at December 31, 2012	$	29,223.0		$	97.4		$	29,320.4
Purchase price allocation adjustment(4)	(12.7		)	—			(12.7		)
Foreign currency translation	(2.3		)	—			(2.3		)
Balance at December 31, 2013	$	29,208.0		$	97.4		$	29,305.4

(1) Represents the acquisition of Medco in April 2012.

(2) Represents goodwill associated with the discontinued portions of UBC and our acute infusion therapies line of business.

(3) Represents the disposition of $12.0 million of goodwill associated with the sale of CYC and the impairment of $2.0 million associated with EAV.

(4) Goodwill associated with the Merger has been adjusted due to the finalization of the purchase price allocation during the first quarter of 2013.

The aggregate amount of amortization expense of other intangible assets for our continuing operations was $2,037.8 million, $1,632.0 million and $236.0 million for the years ended December 31, 2013, 2012 and 2011, respectively. Amortization expense for the years ended December 31, 2013 and 2012 includes $19.6 million and $43.6 million, respectively, of fees incurred, recorded in interest expense in the consolidated statement of operations, related to our debt instruments. Additionally, in accordance with applicable accounting guidance, amortization of $114.0 million for customer contracts related to the PBM agreement has been included as an offset to revenues for each of the years ended December 31, 2013, 2012 and 2011. The future aggregate amount of amortization expense of other intangible assets for our continuing operations is expected to be approximately $1,767.8 million for 2014, $1,747.4 million for 2015, $1,740.2 million for 2016, $1,322.7 million for 2017 and $1,312.0 million for 2018. The weighted-average amortization period of intangible assets subject to amortization is 16 years in total, and by major intangible class is 5 to 20 years for customer-related intangibles and 2 to 30 years years for other intangible assets.

In connection with an asset acquisition and the disposition of various businesses (see Note 4 - Dispositions), and pursuant to our policies for assessing impairment of goodwill and long-lived assets (see Note 1 - Summary of significant accounting policies), we recorded various additions and charges, as described below.

Asset acquisition of SmartD. Our PBM gross customer contract balance as of December 31, 2013 includes an increase of $14.5 million. This new intangible asset has a useful life of 10 years and is the result of our asset acquisition of the SmartD Medicare Prescription Drug Plan (“PDP”) on September 1, 2013. The asset acquisition added 87,000 covered Medicare lives to our existing PDP offering.

Sale of acute infusion therapies line of business. In connection with entering into an agreement for the sale of the acute infusion therapies line of business, amounts previously classified in continuing operations have been reclassified to discontinued operations for the year ended December 31, 2012. Amounts reclassified as discontinued operations included goodwill of $39.4 million. During the year ended December 31, 2013, we recorded goodwill impairment charges associated with our acute infusion therapies line of business totaling $32.9 million. As a gain was recorded on the sale, the elimination of the remaining goodwill of $6.5 million was not recorded as an impairment.

Sale of portions of UBC. As a result of our determination that portions of the UBC business were not core to our future operations, amounts previously classified in continuing operations were reclassified to discontinued operations in 2012. Amounts reclassified as discontinued operations, and subsequently written off in connection with the sale of these lines of business throughout 2013, included goodwill of $88.5 million and intangible assets of $157.4 million. Intangible assets were comprised of customer relationships with a carrying value of $157.4 million (gross value of $181.4 million less accumulated amortization of $24.0 million). As a gain was recorded on the sale of these businesses, the elimination of these amounts was not recorded as an impairment.

74

Sale of EAV. In 2012, we recorded impairment charges associated with EAV totaling $11.5 million, which was comprised of $2.0 million of goodwill and $9.5 million of intangible assets and reflected fair value. The write-down of intangible assets was comprised of customer relationships with a carrying value of $3.6 million (gross value of $5.0 million less accumulated amortization of $1.4 million) and trade names with a carrying value of $5.9 million (gross value of $7.0 million less accumulated amortization of $1.1 million).

Sale of Liberty. In 2012, we recorded an impairment charge associated with Liberty totaling $23.0 million to reflect fair value. The write-down was comprised of customer relationships with a carrying value of $24.2 million (gross value of $35.0 million less accumulated amortization of $10.8 million) and trade names with a carrying value of $6.6 million (gross value of $7.0 million less accumulated amortization of $0.4 million). This charge was allocated to these assets on a pro rata basis using the carrying values as of September 30, 2012.

Sale of CYC. In 2012, we completed the sale of CYC, which was included in our Other Business Operations segment. In connection with the sale of this line of business, goodwill of $12.0 million and trade names of $0.7 million were eliminated upon the sale of the business. As a gain was recorded on the sale, the elimination of these amounts was not recorded as an impairment.

75

7. Financing

The Company’s debt, net of unamortized discounts and premiums, consists of:

	December 31,
(in millions)	2013		2012
Long-term debt:
March 2008 Senior Notes
7.125% senior notes due 2018	$	1,378.5	$	1,417.2
6.125% senior notes due 2013	—		303.3
	1,378.5		1,720.5
June 2009 Senior Notes
6.250% senior notes due 2014	—		998.7
7.250% senior notes due 2019	497.9		497.6
	497.9		1,496.3
September 2010 Senior Notes
2.750% senior notes due 2015	506.9		510.9
4.125% senior notes due 2020	506.8		507.6
	1,013.7		1,018.5
May 2011 Senior Notes
3.125% senior notes due 2016	1,497.0		1,495.8
November 2011 Senior Notes
3.500% senior notes due 2016	1,249.8		1,249.7
4.750% senior notes due 2021	1,241.2		1,240.3
2.750% senior notes due 2014	899.7		899.4
6.125% senior notes due 2041	698.4		698.4
	4,089.1		4,087.8
February 2012 Senior Notes
2.650% senior notes due 2017	1,490.7		1,487.9
2.100% senior notes due 2015	998.1		996.5
3.900% senior notes due 2022	981.9		980.0
	3,470.7		3,464.4
Term facility due August 29, 2016 with an average interest rate of 1.92% at December 31, 2013 and 1.96% at December 31, 2012	2,000.0		2,631.6
Other	0.1		0.1
Total debt	13,947.0		15,915.0
Less: Current maturities of long-term debt	1,584.0		934.9
Total long-term debt	$	12,363.0	$	14,980.1

BANK CREDIT FACILITIES

On August 29, 2011, ESI entered into a credit agreement (the “credit agreement”) with a commercial bank syndicate providing for a five-year $4,000.0 million term loan facility (the “term facility”) and a $1,500.0 million revolving loan facility (the “revolving facility”). The term facility was used to pay a portion of the cash consideration in connection with the Merger (as discussed in Note 3 - Changes in business), to repay existing indebtedness and to pay related fees and expenses. Subsequent to consummation of the Merger on April 2, 2012, the revolving facility is available for general corporate purposes. The term facility and the revolving facility both mature on August 29, 2016. As of December 31, 2013, no amounts were drawn under the revolving facility. The Company makes quarterly principal payments on the term facility. Additionally, during the fourth quarter of 2012, the Company paid down $1,000.0 million of the term facility. As of December 31, 2013, $2,000.0 million was outstanding under the term facility with an average interest rate of 1.92%, of which $684.2 million is considered

76

current maturities of long-term debt. Upon consummation of the Merger, Express Scripts assumed the obligations of ESI and became the borrower under the credit agreement.

The credit agreement requires interest to be paid at the LIBOR or adjusted base rate options, plus a margin. The margin over LIBOR ranges from 1.25% to 1.75% for the term facility and 1.10% to 1.55% for the revolving facility, and the margin over the base rate options ranges from 0.25% to 0.75% for the term facility and 0.10% to 0.55% for the revolving facility, depending on our consolidated leverage ratio. Under the credit agreement, we are required to pay commitment fees on the unused portion of the $1,500.0 million revolving facility. The commitment fee ranges from 0.15% to 0.20% depending on our consolidated leverage ratio.

BRIDGE FACILITY

On August 5, 2011, ESI entered into a credit agreement with Credit Suisse AG, Cayman Islands Branch, as administrative agent, Citibank, N.A., as syndication agent, and the other lenders and agents named within the agreement. The credit agreement provided for a one-year unsecured $14,000.0 million bridge term loan facility (the “bridge facility”). No amounts were withdrawn under the bridge facility, and subsequent to consummation of the Merger on April 2, 2012, the bridge facility was terminated.

FIVE-YEAR CREDIT FACILITY

On April 30, 2007, Medco entered into a senior unsecured credit agreement, which was available for general working capital requirements. The facility consisted of a $1,000.0 million, 5-year senior unsecured term loan and a $2,000.0 million, 5-year senior unsecured revolving credit facility. The facility was due to mature on April 30, 2012. Medco refinanced the $2,000.0 million senior unsecured revolving credit facility on January 23, 2012. Upon completion of the Merger, the $1,000.0 million senior unsecured term loan and all associated interest, and the $1,000.0 million then outstanding under the senior unsecured revolving credit facility, were repaid in full and terminated.

ACCOUNTS RECEIVABLE FINANCING FACILITY

Upon consummation of the Merger, Express Scripts assumed a $600.0 million, 364-day renewable accounts receivable financing facility that was collateralized by Medco’s pharmaceutical manufacturer rebates accounts receivable. On September 21, 2012, Express Scripts terminated the facility and repaid all amounts drawn down.

INTEREST RATE SWAP

Medco entered into five interest rate swap agreements in 2004. These swap agreements, in effect, converted $200.0 million of Medco’s $500.0 million of 7.250% senior notes due 2013 to variable interest rate debt. Under the terms of these swap agreements, Medco received a fixed rate of interest of 7.250% on $200.0 million and paid variable interest rates based on the six-month LIBOR plus a weighted-average spread of 3.05%. The payment dates under the agreements coincided with the interest payment dates on the hedged debt instruments and the difference between the amounts paid and received was included in interest expense. These swaps were settled on May 7, 2012. Express Scripts received $10.1 million for settlement of the swaps and the associated accrued interest receivable through May 7, 2012, and recorded a loss of $1.5 million related to the carrying amount of the swaps and bank fees.

SENIOR NOTES

Following the consummation of the Merger on April 2, 2012, several series of senior notes issued by Medco are reported as debt obligations of Express Scripts on a consolidated basis.

In August 2003, Medco issued $500.0 million aggregate principal amount of 7.250% senior notes due 2013 (the “August 2003 Senior Notes”). On May 7, 2012, the Company redeemed the August 2003 Senior Notes. These notes were redeemable at a redemption price equal to the greater of (i) 100% of the principal amount of the notes being redeemed, or (ii) the sum of the present values of 107.25% of the principal amount of these notes being redeemed, plus all scheduled payments of interest on the notes discounted to the redemption date at a semi-annual equivalent yield to a comparable U.S. Treasury security for such redemption date plus 50 basis points. Total cash payments related to these notes were $549.4 million comprised of principal, redemption costs and interest.

On March 18, 2008, Medco issued $1,500.0 million of senior notes (the “March 2008 Senior Notes”), including:

• $300.0 million aggregate principal amount of 6.125% senior notes due 2013

• $1,200.0 million aggregate principal amount of 7.125% senior notes due 2018

77

The March 2008 Senior Notes require interest to be paid semi-annually on March 15 and September 15. On March 18, 2013, $300.0 million aggregate principal amount of 6.125% senior notes due 2013 matured and were redeemed. We may redeem some or all of the remaining March 2008 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 50 basis points with respect to any March 2008 Senior Notes being redeemed, plus, in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The March 2008 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior basis by us and most of our current and future 100% owned domestic subsidiaries. Medco used the net proceeds to reduce debts held on Medco’s revolving credit facility.

On June 9, 2009, ESI issued $2,500.0 million of senior notes (the “June 2009 Senior Notes”), including:

• $1,000.0 million aggregate principal amount of 5.250% senior notes due 2012

• $1,000.0 million aggregate principal amount of 6.250% senior notes due 2014

• $500.0 million aggregate principal amount of 7.250% senior notes due 2019

The June 2009 Senior Notes require interest to be paid semi-annually on June 15 and December 15. On June 15, 2012, $1,000.0 million aggregate principal amount of 5.250% Senior Notes due 2012 matured and were redeemed. On March 29, 2013, the Company redeemed ESI’s $1,000.0 million aggregate principal amount of 6.250% senior notes due 2014. Total cash payments related to the redemption of the 6.250% senior notes due 2014 were $1,085.0 million, which included $68.5 million of redemption costs and write-off of deferred financing fees which are reflected within the “Interest expense and other” line item of the consolidated statement of operations for the year ended December 31, 2013. These notes are redeemable at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis at the treasury rate plus 50 basis points with respect to any notes being redeemed, plus in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The June 2009 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior unsecured basis by us and most of our current and future 100% owned domestic subsidiaries. ESI used the net proceeds for the acquisition of WellPoint’s NextRx PBM Business.

On September 10, 2010, Medco issued $1,000.0 million of senior notes (the “September 2010 Senior Notes”) including:

• $500.0 million aggregate principal amount of 2.750% senior notes due 2015 (the “September 2015 Senior Notes”)

• $500.0 million aggregate principal amount of 4.125% senior notes due 2020 (the “September 2020 Senior Notes”)

The September 2010 Senior Notes require interest to be paid semi-annually on March 15 and September 15. We may redeem some or all of the September 2010 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 20 basis points with respect to any September 2015 Senior Notes being redeemed, or 25 basis points with respect to any September 2020 Senior Notes being redeemed, plus, in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The September 2010 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior basis by us and most of our current and future 100% owned domestic subsidiaries.

On May 2, 2011, ESI issued $1,500.0 million aggregate principal amount of 3.125% senior notes due 2016 (the “May 2011 Senior Notes”). The May 2011 Senior Notes require interest to be paid semi-annually on May 15 and November 15. We may redeem some or all of the May 2011 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 20 basis points with respect to any May 2011 Senior Notes being redeemed,

78

plus in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The May 2011 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior basis by us and most of our current and future 100% owned domestic subsidiaries. ESI used the net proceeds to repurchase treasury shares.

On November 14, 2011, we issued $4,100.0 million of senior notes (the “November 2011 Senior Notes”), including:

• $900.0 million aggregate principal amount of 2.750% senior notes due 2014 (the “November 2014 Senior Notes”)

• $1,250.0 million aggregate principal amount of 3.500% senior notes due 2016 (the “November 2016 Senior Notes”)

• $1,250.0 million aggregate principal amount of 4.750% senior notes due 2021 (the “2021 Senior Notes”)

• $700.0 million aggregate principal amount of 6.125% senior notes due 2041 (the “2041 Senior Notes”)

The November 2014 Senior Notes require interest to be paid semi-annually on May 21 and November 21. The November 2016 Senior Notes, 2021 Senior Notes, and 2041 Senior Notes require interest to be paid semi-annually on May 15 and November 15.

We may redeem some or all of each series of November 2011 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis at the treasury rate plus 35 basis points with respect to any November 2014 Senior Notes being redeemed, 40 basis points with respect to any November 2016 Senior Notes being redeemed, 45 basis points with respect to any 2021 Senior Notes being redeemed, or 50 basis points with respect to any 2041 Senior Notes being redeemed, plus in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The November 2011 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior unsecured basis by most of our current and future 100% owned domestic subsidiaries. The net proceeds were used to pay a portion of the cash consideration paid in the Merger and to pay related fees and expenses (see Note 3 - Changes in business).

On February 6, 2012, we issued $3,500.0 million of senior notes (the “February 2012 Senior Notes”), including:

• $1,000.0 million aggregate principal amount of 2.100% senior notes due 2015 (“February 2015 Senior Notes”)

• $1,500.0 million aggregate principal amount of 2.650% senior notes due 2017 (“February 2017 Senior Notes”)

• $1,000.0 million aggregate principal amount of 3.900% senior notes due 2022 (“February 2022 Senior Notes”)

We may redeem some or all of each series of February 2012 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 30 basis points with respect to any February 2015 Senior Notes being redeemed, 35 basis points with respect to any February 2017 Senior Notes being redeemed, or 40 basis points with respect to any February 2022 Senior Notes being redeemed plus, in each case, unpaid interest on the notes being redeemed, accrued to the redemption date. The February 2012 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior unsecured basis by most of our current and future 100% owned domestic subsidiaries. The net proceeds were used to pay a portion of the cash consideration paid in the Merger and to pay related fees and expenses (see Note 3 - Changes in business).

FINANCING COSTS

Financing costs of $13.3 million for the issuance of the June 2009 Senior Notes are being amortized over a weighted-average period of 5.2 years. Financing costs of $10.9 million for the issuance of the May 2011 Senior Notes are being amortized over 5 years. Financing costs of $29.9 million for the issuance of the November 2011 Senior Notes are being amortized over a weighted-average period of 12.1 years. Financing costs of $22.5 million for the issuance of the February 2012 Senior Notes are being amortized over a weighted-average period of 6.2 years.

79

We incurred financing costs of $91.0 million related to the bridge facility. Financing costs of $26.0 million were immediately expensed upon entering into the credit agreement, which reduced the commitments under the bridge facility by $4,000.0 million. The remaining financing costs of $65.0 million related to the bridge facility were capitalized and were amortized through April 2012. Amortization of the deferred financing costs was accelerated in proportion to the amount by which alternative financing replaced the commitments under the bridge facility.

Financing costs of $36.1 million related to the term facility and revolving facility are being amortized over 4.4 years. In conjunction with our payment of $1,000.0 million on the term loan, we wrote off a proportionate amount of financing costs.

Deferred financing costs are reflected in other intangible assets, net in the accompanying consolidated balance sheet.

COVENANTS

Our bank financing arrangements contain covenants that restrict our ability to incur additional indebtedness, create or permit liens on assets and engage in mergers or consolidations. The covenants also include minimum interest coverage ratios and maximum leverage ratios. The March 2008 Senior Notes are also subject to an interest rate adjustment in the event of a downgrade in the ratings to below investment grade. At December 31, 2013, we believe we were in compliance with all covenants associated with our credit agreements.

The following represents the schedule of current maturities, excluding unamortized discounts and premiums, for our long-term debt as of December 31, 2013 (amounts in millions):

Year Ended December 31,
2014	$	1,584.3
2015	2,552.6
2016	3,013.2
2017	1,500.0
2018	1,200.0
Thereafter	3,950.0
	$	13,800.1

8. Income taxes

Income from continuing operations before income taxes of $3,030.3 million resulted in net tax expense of $1,104.0 million for 2013. We consider our foreign earnings to be indefinitely reinvested, and accordingly have not recorded a provision for U.S. federal and state income taxes thereon. Cumulative undistributed foreign earnings for which U.S. taxes have not been provided are included in consolidated retained earnings in the amount of $82.2 million, $65.6 million and $53.7 million as of December 31, 2013, 2012, and 2011, respectively. Upon distribution of such earnings, we would be subject to United States income taxes of approximately $30.0 million.

80

The provision (benefit) for income taxes for continuing operations consists of the following:

	Year Ended December 31,
(in millions)	2013			2012			2011
Income from continuing operations before income taxes:
United States	$	2,987.6		$	2,185.8		$	2,029.4
Foreign	42.7			14.6			(2.3		)
Total	$	3,030.3		$	2,200.4		$	2,027.1
Current provision:
Federal	$	1,483.4		$	1,009.5		$	565.2
State	192.3			216.8			42.5
Foreign	2.0			0.7			3.1
Total current provision	1,677.7			1,227.0			610.8
Deferred provision:
Federal	(520.0		)	(358.5		)	125.3
State	(45.3		)	(29.8		)	12.4
Foreign	(8.4		)	(0.7		)	0.1
Total deferred provision (benefit)	(573.7		)	(389.0		)	137.8
Total current and deferred provision	$	1,104.0		$	838.0		$	748.6

A reconciliation of the statutory federal income tax rate and the effective tax rate follows (the effect of foreign taxes on the effective tax rate for 2013, 2012, and 2011 is immaterial):

	Year Ended December 31,
	2013		2012		2011
Statutory federal income tax rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal benefit	2.6		5.1		2.0
Non-controlling interest	(0.3	)	(0.3	)	—
Investment in foreign subsidiaries	(0.7	)	(3.0	)	—
Other, net	(0.2	)	1.3		—
Effective tax rate	36.4	%	38.1	%	37.0	%

Our effective tax rate from continuing operations decreased to 36.4% for the year ended December 31, 2013, compared to 38.1% and 37.0% for 2012 and 2011, respectively.

During 2013, we recorded a discrete benefit of $51.2 million primarily attributable to investments in certain foreign subsidiaries for which we recognized as a result of various divestitures, deferred tax implications of newly enacted state laws and income not recognized for tax purposes. We recorded a discrete benefit of $8.2 million in 2012 primarily attributable to an income tax contingency related to prior year income tax return filings and investments in certain foreign subsidiaries which we expected to realize in the foreseeable future.

The effective tax rate recognized in discontinued operations was (115.1)% and (30.5)% for the years ended December 31, 2013 and 2012, respectively. There were no discontinued operations in 2011. Our income tax provision from discontinued operations was $28.7 million, and $7.5 million for 2013 and 2012, respectively.

81

The deferred tax assets and deferred tax liabilities recorded in our consolidated balance sheet are as follows:

	December 31,
(in millions)	2013			2012
Deferred tax assets:
Allowance for doubtful accounts	$	70.9		$	61.6
Note premium	81.6			101.7
Tax attributes	85.9			62.7
Deferred compensation	6.4			12.2
Equity compensation	268.7			359.5
Accrued expenses	406.0			329.9
Federal benefit of uncertain tax positions	181.8			164.9
Investment in foreign subsidiaries	—			15.6
Other	16.4			19.0
Gross deferred tax assets	1,117.7			1,127.1
Less valuation allowance	(66.9		)	(34.7		)
Net deferred tax assets	1,050.8			1,092.4
Deferred tax liabilities:
Depreciation and property differences	(434.3		)	(444.6		)
Goodwill and intangible assets	(5,585.9		)	(6,164.7		)
Prepaids	(4.0		)	(7.7		)
Other	(11.8		)	(11.3		)
Gross deferred tax liabilities	(6,036.0		)	(6,628.3		)
Net deferred tax liabilities	$	(4,985.2	)	$	(5,535.9	)

As of December 31, 2013, we have deferred tax assets for state and foreign net operating loss carryforwards of approximately $46.5 million and $29.7 million, respectively. The state and foreign net operating loss carryforwards, if unutilized, will expire between 2014 and 2033. A valuation allowance of $64.9 million exists for a portion of these deferred tax assets.

A reconciliation of our beginning and ending amount of unrecognized tax benefits is as follows:

(in millions)	2013			2012			2011
Balance at January 1	$	500.8		$	32.4		$	57.3
Additions for tax positions related to prior years(1)(2)	637.3			392.7			7.3
Reductions for tax positions related to prior years(1)	(92.0		)	(1.3		)	(30.3		)
Additions for tax positions related to the current year	41.7			83.7			4.9
Reductions attributable to settlements with taxing authorities	(3.5		)	—			(5.1		)
Reductions as a result of a lapse of the applicable statute of limitations	(22.8		)	(6.7		)	(1.7		)
Balance at December 31	$	1,061.5		$	500.8		$	32.4

(1) Includes $50.4 million additions and $8.3 million reductions of Medco income tax contingencies recorded through the allocation of Medco’s purchase price for the quarter ended March 31, 2013.

(2) Includes $544.9 million in additions related to a claimed loss in 2012 on the disposition of Liberty.

Included in our unrecognized tax benefits are $451.4 million of uncertain tax positions that would impact our effective tax rate if recognized.

We recorded $22.8 million of interest and penalties to the provision for income taxes in our consolidated statement of operations for the year ended December 31, 2013 as compared to a $19.6 million charge and a $7.0 million benefit for the years ended December 2012 and 2011, respectively. During 2013, we also recorded $2.4 million of interest and penalties through acquisition accounting for the Merger as compared to $55.4 million in 2012. This resulted in $105.8 million and $80.6 million of accrued interest and penalties in our consolidated balance sheet as of December 31, 2013 and 2012, respectively.

82

The Internal Revenue Service (“IRS”) is currently examining Medco’s 2008, 2009 and 2010 consolidated U.S. federal income tax returns. This examination is expected to conclude in early 2014 and is not expected to result in a material change to our financial position. In 2013, the IRS commenced its examination of ESI’s 2010, 2011 and 2012 consolidated U.S. federal income tax returns. Our federal income tax audit uncertainties primarily relate to the timing of deductions while various state income tax audit uncertainties primarily relate to the attribution of overall taxable income to those states. We have taken positions in certain taxing jurisdictions for which it is reasonably possible that the total amounts of unrecognized tax benefits may change within the next twelve months. The possible change could result from the finalization of income tax audits and lapses of statutes of limitation. An estimate of the range of the reasonably possible change in the next 12 months cannot be made. The majority of the open tax years subject to examination by taxing authorities are for years subsequent to 2007.

As of December 31, 2013, management intends to pursue a $544.9 million potential tax benefit related to the disposition of Liberty. Based on information currently available, no net benefit has been recognized. Pending the resolution of certain matters, including but not limited to examinations by taxing authorities, all or a part of the deduction may become realizable in the future. We cannot predict with any certainty the exact amount.

9. Common stock

Accelerated share repurchases. On December 9, 2013, as part of our 2013 Share Repurchase Program (as defined below), we entered into an agreement to repurchase shares of our common stock for an aggregate purchase price of $1,500.0 million (the “2013 ASR Program”) under an Accelerated Share Repurchase agreement (the “2013 ASR Agreement”). Under the terms of the 2013 ASR Agreement, upon payment of the purchase price, we received an initial delivery of 20.1 million shares of our common stock at a price of $67.16 per share, which represents, based on the closing share price of our common stock on Nasdaq on December 9, 2013, approximately 90% of the $1,500.0 million amount of the 2013 ASR Program. The final purchase price per share (the “forward price”) and the final number of shares received will be determined using the arithmetic mean of the daily volume-weighted average price of the Company’s common stock (the “VWAP”) over the term of the 2013 ASR Program less a discount granted under the ASR Agreement. The 2013 ASR Program will be completed in the second quarter of 2014, subject to the right of the investment bank to accelerate the settlement of the program.

Upon settlement of the 2013 ASR Program we may receive additional shares, including for the remaining 10% of the $1,500.0 million amount of the 2013 ASR Program, or we may be required to pay additional cash for the initial shares received or re-deliver shares (at our option), based on the forward price beginning after the effective date of the 2013 ASR Agreement and ending on or about May 5, 2014, subject to the right of the investment bank to accelerate settlement of the 2013 ASR Agreement. Under the terms of the contract, the maximum number of shares that could be delivered by us under the contract is 44.7 million. If the 2013 ASR Program had been settled as of December 31, 2013, based on the VWAP since the effective date of the agreement, the investment bank would have been required to deliver an additional 2.3 million shares to us. These shares are not included in the calculation of diluted weighted-average common shares outstanding during the period because their effect was anti-dilutive.

The 2013 ASR Agreement is accounted for as an initial treasury stock transaction and a forward stock purchase contract. We recorded this transaction as an increase to treasury stock of $1,350.1 million, and recorded the remaining $149.9 million as a decrease to additional paid-in capital in the consolidated balance sheet at December 31, 2013. The $149.9 million recorded in additional paid-in capital will be reclassified to treasury stock upon completion of the 2013 ASR Program. The forward stock purchase contract is classified as an equity instrument under applicable accounting guidance and was deemed to have a fair value of zero at the effective date of the 2013 ASR Agreement. The initial delivery of shares resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share on the effective date of the 2013 ASR Agreement.

On May 27, 2011, ESI entered into agreements to repurchase shares of its common stock for an aggregate purchase price of $1,750.0 million under an Accelerated Share Repurchase agreement (“2011 ASR Agreement”). The 2011 ASR Agreement consisted of two agreements, providing for the repurchase of shares of ESI’s common stock worth $1,000.0 million and $750.0 million, respectively. Upon payment of the purchase price on May 27, 2011, ESI received 29.4 million shares of ESI’s common stock at a price of $59.53 per share. During the third quarter of 2011, ESI settled the $1,000.0 million portion of the 2011 ASR Agreement and received 1.9 million shares at a final forward price of $53.51 per share. During the fourth quarter of 2011, ESI settled $725.0 million of the $750.0 million portion of the 2011 ASR Agreement and received 2.1 million shares at a weighted-average final forward price of $50.69. On April 27, 2012, ESI settled the remaining portion of the 2011 ASR Agreement and received 0.1 million additional shares, resulting in a total of 33.5 million shares received under the 2011 ASR Agreement.

83

The 2011 ASR Agreement was accounted for as an initial treasury stock transaction and a forward stock purchase contract. The forward stock purchase contract was classified as an equity instrument under applicable accounting guidance and was deemed to have a fair value of zero at the effective date. The initial repurchase of shares resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share on the effective date of the agreements. The remaining 4.0 million shares and 0.1 million shares received for the portions of the 2011 ASR Agreement that were settled during 2011 and 2012, respectively, reduced weighted-average common shares outstanding for the years ended December 31, 2011 and 2012, respectively.

Treasury share repurchases. Upon consummation of the Merger on April 2, 2012, all ESI shares held in treasury were no longer outstanding and were cancelled and retired and ceased to exist. Express Scripts eliminated the value of treasury shares, at cost, immediately prior to the Merger as a reduction to retained earnings and paid-in capital.

On March 6, 2013, the Board of Directors of Express Scripts approved a share repurchase program (the “2013 Share Repurchase Program”), authorizing the repurchase of up to 75.0 million shares (as adjusted for any subsequent stock split, stock dividend or similar transaction) of the Company’s common stock. There is no limit on the duration of the 2013 Share Repurchase Program.

Including the shares repurchased through the 2013 ASR Program, we repurchased 60.4 million shares for $3,905.3 million during the year ended December 31, 2013. Repurchases during the second quarter included 1.2 million shares of common stock for an aggregate purchase price of $68.4 million that were held on behalf of participants who acquired such shares upon the consummation of the Merger as a result of conversion of Medco shares previously held in Medco’s 401(k) plan. As previously announced, the Express Scripts 401(k) Plan no longer offers an investment fund option consisting solely of shares of Express Scripts common stock, and previously held shares were to be sold on or about the first anniversary of the Merger. This repurchase was not considered part of the 2013 Share Repurchase Program. As of December 31, 2013, there were 15.8 million shares remaining under the 2013 Share Repurchase Program, including shares repurchased under the 2013 ASR Program. Additional share repurchases, if any, will be made in such amounts and at such times as the Company deems appropriate based upon prevailing market and business conditions and other factors. Current year repurchases were funded through internally generated cash.

ESI had a stock repurchase program, originally announced on October 25, 1996. In addition to the shares repurchased through the 2011 ASR Agreement, ESI repurchased 13.0 million shares under its existing stock repurchase program during the second quarter of 2011 for $765.7 million.

Preferred share purchase rights. In July 2001, ESI’s Board of Directors adopted a stockholder rights plan which declared a dividend of one right for each outstanding share of ESI’s common stock. The rights plan expired on March 15, 2011 and no additional plan has been adopted by the Board of Directors.

10. Employee benefit plans and stock-based compensation plans

Retirement savings plans. We sponsor retirement savings plans under Section 401(k) of the Internal Revenue Code for substantially all of our full-time employees. Upon consummation of the Merger, the Company assumed sponsorship of the plans historically sponsored by ESI (the “ESI 401(k) Plan”) and Medco (the “Medco 401(k) Plan”).

Effective January 1, 2013, the Medco 401(k) Plan merged into the ESI 401(k) Plan. The combined plan (the “Express Scripts 401(k) Plan”) is applicable to all full-time and part-time employees of the Company. Under the Express Scripts 401(k) Plan, eligible employees may elect to contribute up to 50% of their salary, and the Company matches up to 6% of the employees’ compensation contributed to the plan for substantially all employees after one year of service.

Prior to January 1, 2013, under the ESI 401(k) Plan, employees were able to elect to enter into a salary deferral agreement under which a maximum of 25% of their salary could be contributed to the plan. Under the Medco 401(k) Plan, employees were able to elect to contribute up to 50% of their salary. The Company matched 200% of the first 1% and 100% of the next 3% of the employees’ compensation contributed to the plan for substantially all employees under the ESI 401(k) Plan after one year of service. The Company matched up to 6% of the employees’ compensation contributed to the plan for substantially all employees under the Medco 401(k) Plan.

For the years ended December 31, 2013, 2012 and 2011, we had contribution expense of approximately $79.9 million, $67.6 million and $25.7 million, respectively. The increase for the year ended December 31, 2012 is the result of contributions to the Medco 401(k) Plan from the date of the Merger. Contributions under all plans are subject to aggregate limits required under the Internal Revenue Code.

84

Employee stock purchase plan. We offer an employee stock purchase plan that qualifies under Section 423 of the Internal Revenue Code and permits all domestic employees, excluding certain management level employees, to purchase shares of our common stock. Participating employees may contribute up to 10% of their salary to purchase common stock at the end of each monthly participation period at a purchase price equal to 95% of the fair market value of our common stock on the last business day of the participation period. During 2013, 2012 and 2011, approximately 289,000, 229,000 and 200,000 shares of our common stock were issued under the plan, respectively. Our common stock reserved for future employee purchases under the plan is approximately 1.9 million shares at December 31, 2013.

Deferred compensation plan. We maintain a non-qualified deferred compensation plan (the “Executive Deferred Compensation Plan”) that provides benefits payable to eligible key employees at retirement, termination or death. Benefit payments are funded by a combination of contributions from participants and us. Participants may elect to defer up to 50% of their base earnings and 100% of specific bonus awards. Participants become fully vested in our contributions on the third anniversary of the end of the plan year for which the contribution is credited to their account. For 2013, our contribution was equal to 6% of each qualified participant’s total annual compensation, with 25% being allocated as a hypothetical investment in our common stock and the remaining being allocated to a variety of investment options elected by the participants. We have chosen to fund our liability for this plan through investments in trading securities, which primarily consist of mutual funds (see Note 1 - Summary of significant accounting policies). We incurred net compensation expense of approximately $1.2 million, $1.0 million and $0.6 million in 2013, 2012 and 2011, respectively. At December 31, 2013, approximately 5.9 million shares of our common stock have been reserved for future issuance under the plan. We have $0.3 million and $0.2 million of unearned compensation related to unvested shares that are part of our deferred compensation plan at December 31, 2013 and 2012, respectively.

Stock-based compensation plans in general. In March 2011, ESI’s Board of Directors adopted the ESI 2011 Long-Term Incentive Plan (the “2011 LTIP”), which provides for the grant of various equity awards with various terms to our officers, directors and key employees selected by the Compensation Committee of the Board of Directors. The 2011 LTIP was approved by ESI’s stockholders in May 2011 and became effective June 1, 2011. Upon consummation of the Merger, the Company assumed sponsorship of the 2011 LTIP. Under the 2011 LTIP, we may issue stock options, stock-settled stock appreciation rights (“SSRs”), restricted stock units, restricted stock awards, performance share awards and other types of awards. The maximum number of shares available for awards under the 2011 LTIP is 30.0 million. The maximum term of stock options, SSRs, restricted stock units, restricted stock awards and performance shares granted under the 2011 LTIP is 10 years. As of December 31, 2013, approximately 22.6 million shares of our common stock are available for issuance under this plan.

Subsequent to the effective date of the 2011 LTIP, no additional awards have been or will be granted under the 2000 Long-Term Incentive Plan (the “2000 LTIP”), which provided for the grant of various equity awards with various terms to ESI’s officers, directors and key employees selected by the Compensation Committee. However, this plan is still in existence as there are outstanding grants under this plan. Under the 2000 LTIP, ESI issued stock options, SSRs, restricted stock units, restricted stock awards and performance share awards, which awards were converted into awards relating to Express Scripts common stock upon closing of the Merger. Prior to the Merger, awards were typically settled using treasury shares. Upon close of the Merger, treasury shares of ESI were cancelled and subsequent awards were settled by issuance of new shares. The maximum term of stock options, SSRs, restricted stock units, restricted stock awards and performance shares granted under the 2000 LTIP is 10 years.

The provisions of both the 2000 LTIP and 2011 LTIP allow employees to use shares to cover tax withholding on stock awards. Upon vesting of restricted stock and performance shares, employees have taxable income subject to statutory withholding requirements. The number of shares issued to employees may be reduced by the number of shares having a market value equal to our minimum statutory withholding for federal, state and local tax purposes.

The tax benefit related to employee stock compensation recognized during the years ended December 31, 2013, 2012 and 2011 was $60.0 million, $153.9 million and $17.7 million, respectively.

Effective upon the closing of the Merger, the Company assumed the sponsorship of the Medco Health Solutions, Inc. 2002 Stock Incentive Plan (the “2002 Stock Incentive Plan”), allowing Express Scripts to issue awards under this plan. As of December 31, 2013, 13.5 million shares are available under this plan. Under the Medco Health Solutions, Inc. 2002 Stock Incentive Plan, Medco granted, and, following the Merger, Express Scripts has granted and may continue to grant, stock options, restricted stock units and other types of awards to officers, employees and directors. Medco’s awards granted under the 2002 Stock Incentive Plan are subject to accelerated vesting upon change in control and termination.

85

As part of the consideration transferred in the Merger, Express Scripts issued 41.5 million replacement stock options to holders of Medco stock options, valued at $706.1 million, and 7.2 million replacement restricted stock units to holders of Medco restricted stock units, valued at $174.9 million. See Note 3 - Changes in business, for further discussion of valuation.

Restricted stock units and performance shares. Express Scripts grants restricted stock units to certain officers, directors and employees and performance shares to certain officers and employees. Express Scripts’ and ESI’s restricted stock units have three-year graded vesting and performance shares cliff vest at the end of three years. In 2011, 0.5 million restricted units were awarded which cliff vest two years from the closing date of the Merger (the “merger restricted shares”). In addition to the two-year service requirement, vesting of the merger restricted shares was contingent upon completion of the Merger. As this vesting condition did not meet probability thresholds indicated by authoritative accounting guidance, no expense was recorded for the merger restricted shares until consummation of the Merger. Prior to vesting, shares are subject to forfeiture to us without consideration upon termination of employment under certain circumstances. The number of performance shares that ultimately vest is dependent upon achieving specific performance targets. The original value of the performance share grants is subject to a multiplier of up to 2.5 based on certain performance metrics. Medco’s restricted stock units and performance shares granted under the 2002 Stock Incentive Plan prior to the Merger generally cliff vest over three years.

Unearned compensation relating to these awards is amortized to non-cash compensation expense over the estimated vesting periods. As of December 31, 2013 and 2012, unearned compensation related to restricted stock units and performance shares was $52.5 million and $99.4 million, respectively. We recorded pre-tax compensation expense related to restricted stock units and performance share grants of $87.4 million, $190.0 million and $13.9 million in 2013, 2012 and 2011, respectively. The fair value of restricted stock units vested during the years ended December 31, 2013, 2012 and 2011 was $136.7 million, $213.8 million and $20.9 million, respectively. The increase in pre-tax compensation expense and fair value of restricted shares vested for the year ended December 31, 2012 resulted from acceleration of stock-based compensation expense and award vesting associated with the termination of certain Medco employees following the Merger. The weighted-average remaining recognition period for restricted stock units and performance shares is 1.1 years.

A summary of the status of restricted stock units and performance shares as of December 31, 2013, and changes during the year ended December 31, 2013, is presented below.

	Shares (in millions)		Weighted-Average  Grant Date Fair Value Per Share
Outstanding at beginning of year	4.7		$	54.57
Granted	1.1		58.31
Other(1)	0.1		49.72
Released	(2.5	)	53.70
Forfeited/cancelled	(0.3	)	54.04
Outstanding at December 31, 2013	3.1		56.58
Vested and deferred at December 31, 2013	0.1		56.49
Non-vested at December 31, 2013	3.0		$	56.58

(1) Represents additional performance shares issued above the original value for exceeding certain performance metrics.

Stock options and SSRs. Express Scripts grants stock options and SSRs to certain officers, directors and employees to purchase shares of Express Scripts Holding Company common stock at fair market value on the date of grant. Express Scripts’ and ESI’s SSRs and stock options generally have three-year graded vesting, with the exception of 1.0 million awards granted during the fourth quarter of 2011 which cliff vest two years from the closing date of the Merger. Medco’s options granted under the 2002 Stock Incentive Plan generally vest on a graded basis over three years.

Due to the nature of the awards, we use the same valuation methods and accounting treatments for SSRs and stock options. As of December 31, 2013 and 2012, unearned compensation related to SSRs and stock options was $43.8 million and $74.4 million, respectively. We recorded pre-tax compensation expense related to SSRs and stock options of $77.3 million, $220.0 million and $34.6 million in 2013, 2012 and 2011, respectively. The increase for the year ended December 31, 2012 resulted from stock-based compensation expense acceleration associated with the termination of certain Medco employees. The weighted-average remaining recognition period for stock options and SSRs is 1.3 years.

86

A summary of the status of stock options and SSRs as of December 31, 2013, and changes during the year ended December 31, 2013, is presented below.

	Shares (in millions)		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life	Aggregate Intrinsic Value (in millions)(1)
Outstanding at beginning of year	44.2		$	40.71
Granted	3.3		58.34
Exercised	(14.6	)	37.56
Forfeited/cancelled	(1.0	)	54.11
Outstanding at end of period	31.9		43.56		5.3	$	852.3
Awards exercisable at period end	23.7		$	40.26	5.0	$	709.8

(1) Amount by which the market value of the underlying stock exceeds the exercise price of the option.

For the year ended December 31, 2013, the windfall tax benefit related to stock options exercised during the year was $42.7 million and is classified as a financing cash inflow on the consolidated statement of cash flows.

The fair value of options and SSRs granted is estimated on the date of grant using a Black-Scholes multiple option-pricing model with the following weighted-average assumptions:

	2013	2012	2011
Expected life of option	4-5 years	2-5 years	2-5 years
Risk-free interest rate	0.6%-1.7%	0.3%-0.9%	0.3%-2.2%
Expected volatility of stock	27%-37%	29%-38%	30%-39%
Expected dividend yield	None	None	None
Weighted-average volatility of stock	34.1%	35.5%	36.6%

The Black-Scholes model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. The expected term and forfeiture rate of options granted is derived from historical data on employee exercises and post-vesting employment termination behavior as well as expected behavior on outstanding options. The risk-free rate is based on the U.S. Treasury rates in effect during the corresponding period of grant. The expected volatility is based on the historical volatility of our stock price. These factors could change in the future, which would affect the stock-based compensation expense in future periods.

Cash proceeds, intrinsic value related to total stock options exercised, and weighted-average fair value of stock options granted during the years ended December 31, 2013, 2012 and 2011 are provided in the following table:

(in millions, except per share data)	2013		2012		2011
Proceeds from stock options exercised	$	524.0	$	401.1	$	35.9
Intrinsic value of stock options exercised	362.0		359.6		82.8
Weighted-average fair value per share of options granted during the year	$	17.17	$	15.13	$	14.74

11. Pension and other post-retirement benefits

Net pension and postretirement benefit cost. In connection with the Merger, Express Scripts assumed sponsorship of Medco’s pension and other post-retirement benefit obligations, which were re-measured and recorded at fair value on the date of the Merger.

For the pension plans, Express Scripts has elected to determine the projected benefit obligation as the value of the benefits to which employees would be entitled if they separated from service immediately. Under this approach, the liability is equal to the employee’s account value as of the measurement date. After re-measurement upon the Merger consummation, the fair value of the projected benefit obligation was $291.3 million and the plan assets at fair value totaled $217.0 million, representing an underfunded status and resulting in a balance sheet liability of $74.3 million.

87

In January 2011, Medco amended its defined benefit pension plans, freezing the benefit for all participants effective in the first quarter of 2011. After the plan freeze, participants no longer accrue any benefits under the plans, and the plans have been closed to new entrants since February 28, 2011. However, account balances continue to be credited with interest until paid.

Medco’s unfunded postretirement healthcare benefit plan was discontinued for all active non-retirement eligible employees in January 2011.

For the years ended December 31, 2013 and 2012, the net benefit for the Company’s pension plan consisted of the following components:

	Year Ended December 31,
(in millions)	2013			2012
Interest cost	$	0.5		$	0.3
Actual return on plan assets	(15.3		)	(7.0		)
Net actuarial (gain)/loss	(0.4		)	0.1
Net benefit	$	(15.2	)	$	(6.6	)

For the years ended December 31, 2013 and 2012, the net (benefit) cost for the Company’s other postretirement benefit plan consisted of the following components:

	Year Ended December 31,
(in millions)	2013			2012
Interest cost	$	0.1		$	0.1
Net actuarial (gain)/loss	(0.2		)	0.1
Net (benefit) cost	$	(0.1	)	$	0.2

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. Net actuarial gains and losses are recorded into net income in the period incurred.

Changes in plan assets, benefit obligation and funded status. Summarized information about the funded status and the changes in plan assets and projected benefit obligation for the years ended December 31, 2013 and 2012 are as follows:

	Pension Benefits						Other Postretirement Benefits
(in millions)	2013			2012			2013			2012
Fair value of plan assets at beginning of year	$	207.5		$	—		$	—		$	—
Fair value of plan assets assumed in the Merger	—			217.0			—			—
Actual return on plan assets	15.3			7.0			—			—
Company contributions	—			6.1			0.4			0.5
Benefits paid	(43.4		)	(22.6		)	(0.4		)	(0.5		)
Fair value of plan assets at end of year	179.4			207.5			—			—
Projected benefit obligation at beginning of year	269.1			—			2.6			—
Benefit obligation assumed in the Merger	—			291.3			—			2.9
Interest cost	0.5			0.3			0.1			0.1
Actuarial (gains)/losses	(0.4		)	0.1			(0.2		)	0.1
Benefits paid	(43.4		)	(22.6		)	(0.4		)	(0.5		)
Projected benefit obligation at end of year	225.8			269.1			2.1			2.6
Underfunded status at end of year	$	46.4		$	61.6		$	2.1		$	2.6

As a result of the plan freeze, the accumulated benefit obligation and the projected benefit obligation amounts for the defined benefit pension plan are equal at December 31, 2013 and 2012.

88

The pension and other postretirement benefits liabilities recognized at December 31, 2013 and 2012 are as follows:

	Pension Benefits				Other Postretirement Benefits
(in millions)	2013		2012		2013		2012
Accrued expenses	$	—	$	—	$	0.3	$	0.5
Other liabilities	46.4		61.6		1.8		2.1
Total pension and other postretirement liabilities	$	46.4	$	61.6	$	2.1	$	2.6

Actuarial assumptions. The Company has elected an accounting policy that measures the pension plan’s benefit obligation as if participants were to separate immediately. As a result, a discount rate is not used to value the pension benefit obligation. Also, since both the pension and other postretirement benefit plans are frozen, a rate of compensation increase is not applicable.

	Other Postretirement Benefits
	2013		2012
Weighted-average assumptions used to determine benefit obligations at fiscal year-end:
Discount rate	3.39	%	2.48	%
Weighted-average assumptions used to determine net cost for the fiscal year ended:
Discount rate	2.52	%	3.30	%

Our return on plan assets is calculated based on the actual fair value of plan assets. We recognize actual gains and losses on pension plan assets immediately in our operating results. Amounts are recorded each period based on estimates, and adjusted annually when actual results of the plan are measured at December 31^st.

For the other postretirement benefit plan, the discount rate is determined annually and is evaluated and modified to reflect, at the end of our fiscal year, the prevailing market rate of a portfolio of high-quality corporate bond investments that would provide the future cash flows needed to settle benefit obligations as they come due.

Future costs of the amended postretirement benefit healthcare plan are being capped based on 2004 costs. As a result, employer liability is not affected by healthcare cost trend. Additionally, the salary growth rate assumption is not applicable for determination of the benefit obligation at December 31, 2013 and 2012 as a result of the plan freeze.

Pension plan assets. The Company believes the oversight of the investments held under its pension plans is rigorous and the investment strategies are prudent. Beginning in 2013, we have adopted a dynamic asset allocation policy. The intent of this policy is to allocate funds to investments with lower expected risk profiles as the funded ratio of the pension plan improves. The investment objectives of the Company’s qualified pension plan are designed to provide liquidity to meet benefit payments and expenses payable from the plan to offer a reasonable probability of achieving asset growth to reduce the underfunded status of the plan and to manage the plan’s assets in a liability framework. The precise amount for which the benefit obligations will be settled depends on future events, including interest rates and the life expectancy of the plan’s members. The obligations are estimated using actuarial assumptions based on the current economic environment.

89

The following table sets forth the target allocation for 2014 by asset class and the plan assets at fair value at December 31, 2013 and 2012 by level within the fair value hierarchy:

($ in millions) Asset Class	Target Allocation 2014(1)		Percent of Plan Assets at December 31, 2013		December 31, 2013		Level 1(2)(3)		Level 2(2)(4)			Level 3(2)(5)
Cash equivalents	2	%	2	%	$	3.3	$	—	$	3.3		$	—
U.S. equity securities	11	%	9	%
U.S. large-cap					11.0		—		11.0		(6)	—
U.S. small/mid-cap					4.7		—		4.7		(7)	—
International equity securities	12	%	15	%	27.9		—		27.9			—
Fixed income	47	%	45	%	80.6		—		80.6		(8)	—
Hedge funds(9)	23	%	24	%	42.9		—		—			42.9
Global real estate	5	%	5	%	9.0		—		9.0			—
Total			100	%	$	179.4	$	—	$	136.5		$	42.9

($ in millions) Asset Class	Percent of Plan Assets at December 31, 2012		December 31, 2012		Level 1(2)(3)		Level 2(2)(4)			Level 3(2)
U.S. equity securities	54	%
U.S. large-cap			$	60.3	$	—	$	60.3	(6)	$	—
U.S. small/mid-cap			51.1		27.9		23.2		(7)	—
International equity securities	15	%	31.1		31.1		—			—
Fixed income	31	%	65.0		30.8		34.2		(8)	—
Total	100	%	$	207.5	$	89.8	$	117.7		$	—

(1) The amounts disclosed reflect our target allocation based on the funded ratio of the plan at December 31, 2013 and are subject to change based on the funded ratio of the plan during the year.

(2) See Note 2 - Fair value measurements for a description of the fair value hierarchy.

(3) Investments classified as Level 1 are valued at the readily available quoted price from an active market where there is significant transparency in the executed quoted price. These investments consist of mutual funds valued at the net asset value of shares held by the pension plan at year-end.

(4) Assets classified as Level 2 include units held in common collective trust funds and mutual funds, which are valued based on the net asset values reported by the funds’ investment managers, and a short-term fixed income investment fund which is valued using other significant observable inputs such as quoted prices for comparable securities.

(5) The plan holds units of the a hedge fund offered through a private placement. The units are valued monthly using a net asset value (“NAV”). The hedge fund’s NAV is based on the fair value (reported NAVs) of each fund’s underlying fund investments and includes cash equivalents, and any accrued payables or receivables. Both the hedge fund and its underlying investments are priced using fair value pricing sources and techniques. The plan may redeem its shares quarterly at the stated NAV after a one year lock-up.

(6) Consists of common collective trusts that invest in common stock of S&P 500 companies and US large-cap common stock.

(7) Consists of a common collective trust that invests in US mid-cap common stock.

(8) Primarily consists of a common collective trust that invests in passive bond market index lending funds and a short-term investment fund.

(9) The inclusion of hedge funds serves to further diversify the fund and the volatility of the hedge fund portfolio returns are expected to be less than that of global equities.

90

For measurements using significant unobservable inputs (Level 3) during 2013, a reconciliation of the beginning and ending balances is as follows:

(in millions)	Hedge Funds
Balance at beginning of year	$	—
Purchases	42.0
Unrealized gains	0.9
Balance at end of year	$	42.9

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement.

Cash flows.

Employer Contributions. Under the current actuarial assumptions, there is no minimum contribution required for the 2013 plan year. The Company does not expect to contribute any cash payments during 2014.

Estimated Future Benefit Payments. As of December 31, 2013, the following benefit payments are expected to be made (in millions):

Year Ended December 31,	Pension Benefits		Other Postretirement Benefits
2014	$	15.5	$	0.3
2015	14.1		0.3
2016	13.7		0.3
2017	13.3		0.2
2018	13.1		0.2
2019-2023	63.8		0.7

12. Commitments and contingencies

Lease agreements. We have entered into noncancellable agreements to lease certain offices, distribution facilities and operating equipment with remaining terms from one to ten years. The majority of our lease agreements include renewal options which would extend the agreements from one to five years. Rental expense under the office and distribution facilities leases, excluding our discontinued operations (see Note 4 - Dispositions), in 2013, 2012 and 2011 was $83.8 million, $103.6 million and $30.2 million, respectively. The future minimum lease payments, including interest, due under noncancellable leases, excluding the facilities of the discontinued operations of our held for sale entities of our European operations, are shown below (in millions):

Year Ended December 31,	Minimum Operating Lease Payments		Minimum Capital Lease Payments
2014	$	85.0	$	14.4
2015	61.1		14.4
2016	53.5		14.4
2017	42.6		0.2
2018	38.4		—
Thereafter	85.5		—
Total	$	366.1	$	43.4

In November 2012, we entered into a four-year capital lease for equipment to be used in our Fair Lawn, New Jersey facility effective January 1, 2013. The lease terminates in December 2016 and contains an option for the Company to purchase the equipment for one dollar at that time. As of December 31, 2013, the capitalized lease obligation was $42.0 million.

91

Purchase commitments. As of December 31, 2013, we have certain required future purchase commitments for materials, supplies, services and fixed assets related to the normal course of business. We do not expect potential payments under these provisions to materially affect results of operations or financial condition based upon reasonably likely outcomes derived by reference to historical experience and current business plans. These future purchase commitments (in millions), excluding the facilities of the discontinued operations of our held for sale entities of our European operations, are summarized below:

Year Ended December 31,	Future Purchase Commitments
2014	$	425.3
2015	102.8
2016	57.3
2017	25.3
2018	—
Thereafter	—
Total	$	610.7

Other contingencies. For the year ended December 31, 2013, approximately 47.0% of our pharmaceutical purchases were through one wholesaler. We believe other alternative sources are readily available. Except for customer concentration described in Note 13 - Segment information below, we believe no other concentration risks exist at December 31, 2013.

In the ordinary course of business there have arisen various legal proceedings, investigations, government inquiries or claims now pending against us or our subsidiaries, including, but not limited to, those relating to regulatory, commercial, employment, employee benefits and securities matters. In accordance with applicable accounting guidance, we record accruals for certain of our outstanding legal proceedings, investigations or claims when we believe it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. We evaluate, on a quarterly basis, developments in legal proceedings, investigations or claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. We disclose the amount of the accrual if the consolidated financial statements would be otherwise misleading, which was not the case for the years ended December 31, 2013, 2012 and 2011.

We record self-insurance accruals based upon estimates of the aggregate liability of claim costs in excess of our insurance coverage. Accruals are estimated using certain actuarial assumptions followed in the insurance industry and our historical experience (see Note 1 - Summary of significant accounting policies, “Self-insurance accruals”). The majority of these claims are legal claims and our liability estimate is primarily related to the cost to defend these claims. We do not accrue for settlements, judgments, monetary fines or penalties until such amounts are probable and estimable. Under authoritative guidance, if the range of possible loss is broad, the liability accrual is based on the low end of the range.

When a loss contingency is not believed to be both probable and estimable, we do not establish an accrued liability. However, if the loss (or an additional loss in excess of the accrual) is believed to be at least a reasonable possibility and material, then we disclose an estimate of the possible loss or range of loss, if such estimate can be made, or disclose that an estimate cannot be made.

The assessments of whether a loss is probable or a reasonable possibility, and whether the loss or a range of loss is estimable, often involve a series of complex judgments about future events. We are often unable to estimate a range of reasonably possible loss, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel or unsettled legal theories or a large number of parties. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss, fine, penalty or business impact, if any. Accordingly, for many proceedings, we are currently unable to estimate the loss or a range of possible loss. For a limited number of proceedings, we may be able to reasonably estimate the possible range of loss in excess of any accruals. However, we believe that such matters, individually and in the aggregate, when finally resolved, are not reasonably likely to have a material adverse effect on our cash flow or financial condition. We also believe that any amount that could be reasonably estimated in excess of accruals, if any, for such proceedings is not material. However, an adverse resolution of one or more of such matters could have a material adverse effect on our results of operations in a particular quarter or fiscal year.

While we believe our services and business practices are in compliance with applicable laws, rules and regulations in all material respects, we cannot predict the outcome of these claims at this time. An unfavorable outcome in one or more of these matters could result in the imposition of judgments, monetary fines or penalties, or injunctive or administrative remedies.

92

We can give no assurance that such judgments, fines and remedies, and future costs associated with any such matters would not have a material adverse effect on our financial condition, our consolidated results of operations or our consolidated cash flows.

We previously disclosed an accrual of $30.0 million related to a client contractual dispute. The accrual was reflected as an offset to revenue in the consolidated statement of operations for the year ended December 31, 2011. In 2012, this dispute was resolved and the impact of the resolution was not material.

13. Segment information

We report segments on the basis of services offered and have determined we have two reportable segments: PBM and Other Business Operations. During 2013, we determined our acute infusion therapies line of business which was acquired in the Merger and previously included within our PBM segment was no longer core to our future operations and committed to a plan to dispose of this business. During 2012, we determined that various portions of UBC, our European operations and EAV acquired in the Merger that were previously included within our Other Business Operations segment were no longer core to our future operations and committed to a plan to dispose of these businesses. In accordance with applicable accounting guidance, the results of operations for these businesses are reported as discontinued operations for all periods presented in the accompanying information. 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.

93

Operating income is the measure used by our chief operating decision maker to assess the performance of each of our operating segments. The following table presents information about our reportable segments, including a reconciliation of operating income from continuing operations to income before income taxes from continuing operations for the respective years ended December 31.

(in millions)	PBM		Other Business Operations			Total
2013
Product revenues:
Network revenues(1)	$	63,244.4	$	—		$	63,244.4
Home delivery and specialty revenues(2)	37,621.2		—			37,621.2
Other revenues	—		2,001.9			2,001.9
Service revenues	1,020.1		211.2			1,231.3
Total revenues	101,885.7		2,213.1			104,098.8
Depreciation and amortization expense	2,419.1		27.9			2,447.0
Operating income	3,502.0		49.7			3,551.7
Equity income from joint venture						32.8
Interest income						41.9
Interest expense and other						(596.1		)
Income before income taxes						3,030.3
Capital expenditures	411.2		11.8			423.0
2012
Product revenues:
Network revenues(1)	$	57,765.5	$	—		$	57,765.5
Home delivery and specialty revenues(2)	32,860.9		—			32,860.9
Other revenues	—		2,118.7			2,118.7
Service revenues	805.8		163.4			969.2
Total revenues	91,432.2		2,282.1			93,714.3
Depreciation and amortization expense	1,833.3		38.1			1,871.4
Operating income	2,815.1		(21.2		)	2,793.9
Equity income from joint venture						14.9
Interest income						10.6
Interest expense and other						(619.0		)
Income before income taxes						2,200.4
Capital expenditures	148.5		11.7			160.2
2011
Product revenues:
Network revenues(1)	$	30,007.3	$	—		$	30,007.3
Home delivery and specialty revenues(2)	14,547.4		—			14,547.4
Other revenues	—		1,279.3			1,279.3
Service revenues	273.0		21.3			294.3
Total revenues	44,827.7		1,300.6			46,128.3
Depreciation and amortization expense	245.2		8.2			253.4
Operating income	2,302.6		11.8			2,314.4
Interest income						12.4
Interest expense and other						(299.7		)
Income before income taxes						2,027.1
Capital expenditures	140.0		4.4			144.4

(1) Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

(2) Includes home delivery, specialty and other including: (a) drugs distributed through patient assistance programs and (b) drugs we distribute to other PBMs’ clients under limited distribution contracts with pharmaceutical manufacturers, and (c) FreedomFP claims.

94

The following table presents the balance sheet information about our reportable segments, including the discontinued operations of our acute infusion therapies line of business, the businesses within UBC that were sold, EAV and our European operations:

(in millions)	PBM		Other Business Operations		Discontinued Operations		Total
As of December 31, 2013
Total assets	$	52,599.1	$	918.1	$	31.0	$	53,548.2
Investment in equity method investees	$	30.2	$	—	$	—	$	30.2
As of December 31, 2012
Total assets	$	54,510.8	$	3,021.2	$	579.2	$	58,111.2
Investment in equity method investees	$	11.9	$	—	$	—	$	11.9

PBM product revenues consist of revenues from the sale of prescription drugs by retail pharmacies in our retail pharmacy networks, revenues from the dispensing of prescription drugs from our home delivery pharmacies and revenues from the sale of certain fertility and specialty drugs. Other Business Operations product revenues consist of specialty distribution activities and development of scientific evidence to guide the safe, effective and affordable use of medicines. PBM service revenues include administrative fees associated with the administration of retail pharmacy networks contracted by certain clients, informed decision counseling services and specialty pharmacy services. Other Business Operations service revenues include revenues related to data analytics and research associated with our UBC business as well as from healthcare card administration through September 14, 2012, the date of disposal of CYC.

The following table shows the percentage of total revenue represented by our top five clients and clients representing 10% or greater of our consolidated revenue for each respective period:

	December 31,
	2013		2012		2011
WellPoint	12.2	%	13.7	%	29.5	%
Department of Defense (“DoD”)	10.2	%	10.6	%	20.9	%
Other	16.0	%	15.0	%	6.3	%
Top five clients	38.4	%	39.3	%	56.7	%

None of our other clients accounted for 10% or more of our consolidated revenues during the years ended December 31, 2013, 2012 or 2011.

Revenues earned by our continuing operations international businesses totaled $98.6 million, $77.1 million and $62.4 million for the years ended December 31, 2013, 2012 and 2011, respectively. All other continuing operations revenues were earned in the United States. Long-lived assets of our continuing operations international businesses (consisting primarily of fixed assets) totaled $58.6 million and $32.6 million as of December 31, 2013 and 2012, respectively. All other continuing operations long-lived assets are domiciled in the United States.

95

14. Quarterly financial data (unaudited)

The following is a presentation of our unaudited quarterly financial data:

	Quarters
(in millions, except per share data)	First			Second			Third			Fourth
Fiscal 2013(1)
Total revenues(2)	$	26,019.9		$	26,381.9		$	25,915.6		$	25,781.4
Cost of revenues(2)	24,057.8			24,266.8			23,921.4			23,720.4
Gross profit	1,962.1			2,115.1			1,994.2			2,061.0
Selling, general and administrative	1,119.0			1,110.8			1,118.7			1,232.2
Operating income	843.1			1,004.3			875.5			828.8
Net income from continuing operations	380.0			574.4			453.6			518.3
Net loss from discontinued operations, net of tax	(1.9		)	(23.9		)	(15.5		)	(12.3		)
Net income	$	378.1		$	550.5		$	438.1		$	506.0
Less: Net income attributable to non-controlling interest	5.1			7.5			11.4			4.1
Net income attributable to Express Scripts	373.0			543.0			426.7			501.9
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts	$	0.46		$	0.70		$	0.55		$	0.65
Discontinued operations attributable to Express Scripts	—			(0.03		)	(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.46			0.67			0.53			0.63
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts	$	0.45		$	0.68		$	0.54		$	0.64
Discontinued operations attributable to Express Scripts	—			(0.03		)	(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.45			0.66			0.52			0.63
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	374.9		$	566.9		$	442.2		$	514.2
Discontinued operations, net of tax	(1.9		)	(23.9		)	(15.5		)	(12.3		)
Net income attributable to Express Scripts shareholders	$	373.0		$	543.0		$	426.7		$	501.9

96

	Quarters
(in millions, except per share data)	First		Second(3)		Third			Fourth
Fiscal 2012(1)
Total revenues(2)	$	12,132.6	$	27,455.0	$	26,761.6		$	27,365.1
Cost of revenues(2)	11,300.6		25,375.7		24,658.7			25,067.4
Gross profit	832.0		2,079.3		2,102.9			2,297.7
Selling, general and administrative	265.1		1,579.9		1,282.2			1,390.8
Operating income	566.9		499.4		820.7			906.9
Net income from continuing operations	270.2		152.2		415.9			524.1
Net income (loss) from discontinued operations, net of tax	—		0.8		(20.0		)	(13.1		)
Net income	$	270.2	$	153.0	$	395.9		$	511.0
Less: Net income attributable to non-controlling interest	2.4		3.4		4.5			6.9
Net income attributable to Express Scripts	267.8		149.6		391.4			504.1
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts	$	0.55	$	0.18	$	0.51		$	0.63
Discontinued operations attributable to Express Scripts	—		—		(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.55		0.19		0.48			0.62
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts	$	0.55	$	0.18	$	0.50		$	0.62
Discontinued operations attributable to Express Scripts	—		—		(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.55		0.18		0.47			0.61
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	267.8	$	148.8	$	411.4		$	517.2
Discontinued operations, net of tax	—		0.8		(20.0		)	(13.1		)
Net income attributable to Express Scripts shareholders	$	267.8	$	149.6	$	391.4		$	504.1

(1) Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

(2) Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

(3) Includes the April 2, 2012 acquisition of Medco.

15. Condensed consolidating financial information

The senior notes issued by the Company, ESI and Medco are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed by certain of our 100% owned domestic subsidiaries, other than certain regulated subsidiaries, and, with respect to notes issued by ESI and Medco, by us. The following condensed consolidating financial information has been prepared in accordance with the requirements for presentation of such information. The condensed consolidating financial information presented below is not indicative of what the financial position, results of operations or cash flows would have been had each of the entities operated as an independent company during the period for various reasons, including, but not limited to, intercompany transactions and integration of systems.

In December 2012 we sold both our Liberty and EAV subsidiaries. In addition, during the fourth quarter of 2012, we determined that our European operations and portions of UBC met the criteria of discontinued operations. In June 2013 we sold the portion of our UBC business which primarily provided technology solutions and publications to biopharmaceutical companies, and in the third quarter of 2013 we sold the remaining portions of our UBC business that were classified as discontinued. In the fourth quarter of 2013, we sold our acute infusion therapies line of business. Consequently, the operations of EAV, our European operations, the portions of UBC operations that were sold, and our acute infusion therapies line of business are included as discontinued operations of the non-guarantors as of and for the year ended December 31, 2013 (through their respective dates of sale, as applicable), and as of December 31, 2012. Results for the year ended December 31, 2012 include the operations of Liberty, EAV, our European operations, UBC and our acute infusion therapies line of business

97

subsequent to the date of the Merger, April 2, 2012 (revised to reflect the operations as discontinued operations as applicable). The following presentation reflects the structure that exists as of the most recent balance sheet date and also includes certain retrospective revisions to conform prior periods to current period presentation (discussed and presented in further detail below). The condensed consolidating financial information is presented separately for:

(i) Express Scripts (the Parent Company), the issuer of certain guaranteed obligations;

(ii) ESI, guarantor, the issuer of additional guaranteed obligations;

(iii) Medco, guarantor, the issuer of additional guaranteed obligations;

(iv) Guarantor subsidiaries, on a combined basis (but excluding ESI and Medco), as specified in the indentures related to Express Scripts’, ESI’s and Medco’s obligations under the notes;

(v) Non-guarantor subsidiaries, on a combined basis;

(vi) Consolidating entries and eliminations representing adjustments to (a) eliminate intercompany transactions between or among Express Scripts, ESI, Medco, the guarantor subsidiaries and the non-guarantor subsidiaries, (b) eliminate the investments in our subsidiaries and (c) record consolidating entries; and

(vii) Express Scripts and subsidiaries on a consolidated basis.

Certain amounts from prior periods have been revised to conform to current period presentation:

(i) With respect to the condensed consolidating balance sheet as of December 31, 2012, amounts related to the goodwill allocated to Medco Health Solutions, Inc. and certain of its guarantor and non-guarantor subsidiaries have changed as we finalized the purchase price allocation in the first quarter of 2013. The impact of the measurement period adjustment is to reallocate goodwill and intercompany amounts as follows:

(in millions)	Medco Health Solutions, Inc.			Guarantors			Non-guarantors			Eliminations
Intercompany assets	$	(2,040.0	)	$	2,000.5		$	—		$	39.5
Goodwill	$	2,040.0		$	(2,000.5	)	$	39.5		$	—
Intercompany liabilities	$	—		$	—		$	(39.5	)	$	39.5

98

Condensed Consolidating Balance Sheet
(in millions)	Express Scripts Holding Company		Express Scripts, Inc.		Medco Health Solutions, Inc.		Guarantors		Non- Guarantors		Eliminations			Consolidated
As of December 31, 2013
Cash and cash equivalents	$	—	$	1,145.9	$	3.6	$	44.0	$	797.9	$	—		$	1,991.4
Restricted cash and investments	—		—		1.0		—		21.8		—			22.8
Receivables, net	—		1,381.3		750.5		1,557.1		334.0		—			4,022.9
Other current assets	—		99.8		286.4		2,010.4		26.7		—			2,423.3
Current assets of discontinued operations	—		—		—		—		31.0		—			31.0
Total current assets	—		2,627.0		1,041.5		3,611.5		1,211.4		—			8,491.4
Property and equipment, net	—		550.3		5.4		1,082.7		20.5		—			1,658.9
Investments in subsidiaries	36,060.9		9,096.2		12,089.8		—		—		(57,246.9		)	—
Intercompany	—		—		—		14,247.9		—		(14,247.9		)	—
Goodwill	—		2,921.4		22,608.1		3,750.3		25.6		—			29,305.4
Other intangible assets, net	51.7		1,071.7		10,946.8		1,926.0		19.4		—			14,015.6
Other assets	—		79.9		16.5		3.9		12.2		(35.6		)	76.9
Total assets	$	36,112.6	$	16,346.5	$	46,708.1	$	24,622.3	$	1,289.1	$	(71,530.4	)	$	53,548.2
Claims and rebates payable	$	—	$	3,866.2	$	2,901.6	$	—	$	—	$	—		$	6,767.8
Accounts payable	—		875.1		62.7		1,834.9		127.3		—			2,900.0
Accrued expenses	45.3		455.9		241.0		615.5		624.5		—			1,982.2
Current maturities of long-term debt	1,583.9		0.1		—		—		—		—			1,584.0
Current liabilities of discontinued operations	—		—		—		—		1.3		—			1.3
Total current liabilities	1,629.2		5,197.3		3,205.3		2,450.4		753.1		—			13,235.3
Long-term debt	7,975.9		1,994.9		2,392.2		—		—		—			12,363.0
Intercompany	4,670.1		6,328.1		3,222.2		—		27.5		(14,247.9		)	—
Deferred taxes	—		—		4,034.7		1,386.4		19.5		—			5,440.6
Other liabilities	—		199.1		419.9		79.0		2.0		(35.6		)	664.4
Noncurrent liabilities of discontinued operations	—		—		—		—		0.1		—			0.1
Non-controlling interest	—		—		—		—		7.4		—			7.4
Express Scripts stockholders’ equity	21,837.4		2,627.1		33,433.8		20,706.5		479.5		(57,246.9		)	21,837.4
Total liabilities and stockholders’ equity	$	36,112.6	$	16,346.5	$	46,708.1	$	24,622.3	$	1,289.1	$	(71,530.4	)	$	53,548.2

99

Condensed Consolidating Balance Sheet
(in millions)	Express Scripts Holding Company		Express Scripts, Inc.		Medco Health Solutions, Inc.		Guarantors		Non- Guarantors		Eliminations			Consolidated
As of December 31, 2012
Cash and cash equivalents	$	—	$	2,346.6	$	—	$	126.9	$	319.6	$	—		$	2,793.1
Restricted cash and investments	—		—		—		1.0		18.6		—			19.6
Receivables, net	—		1,097.8		2,330.0		1,493.0		505.0		—			5,425.8
Other current assets	—		119.2		306.6		1,800.4		20.8		—			2,247.0
Current assets of discontinued operations	—		—		—		—		271.4		—			271.4
Total current assets	—		3,563.6		2,636.6		3,421.3		1,135.4		—			10,756.9
Property and equipment, net	—		305.7		—		1,307.2		19.2		—			1,632.1
Investments in subsidiaries	31,375.6		8,292.7		5,121.0		—		—		(44,789.3		)	—
Intercompany	2,189.0		—		926.8		6,127.2		—		(9,243.0		)	—
Goodwill	—		2,921.4		22,621.5		3,750.3		27.2		—			29,320.4
Other intangible assets, net	67.1		1,192.4		12,609.4		2,153.6		15.4		—			16,037.9
Other assets	—		57.4		14.4		5.9		4.7		(26.3		)	56.1
Noncurrent assets of discontinued operations	—		—		—		—		307.8		—			307.8
Total assets	$	33,631.7	$	16,333.2	$	43,929.7	$	16,765.5	$	1,509.7	$	(54,058.6	)	$	58,111.2
Claims and rebates payable	$	—	$	2,554.1	$	4,885.9	$	—	$	—	$	—		$	7,440.0
Accounts payable	—		477.5		—		2,284.5		136.9		—			2,898.9
Accrued expenses	62.9		428.3		327.8		612.0		201.9		—			1,632.9
Current maturities of long-term debt	631.6		0.1		303.2		—		—		—			934.9
Current liabilities of discontinued operations	—		—		—		—		150.7		—			150.7
Total current liabilities	694.5		3,460.0		5,516.9		2,896.5		489.5		—			13,057.4
Long-term debt	9,552.2		2,992.1		2,435.8		—		—		—			14,980.1
Intercompany	—		8,764.5		—		—		478.5		(9,243.0		)	—
Deferred taxes	—		—		5,074.7		861.8		—		—			5,936.5
Other liabilities	—		158.7		484.6		73.1		2.8		(26.3		)	692.9
Noncurrent liabilities of discontinued operations	—		—		—		—		48.6		—			48.6
Non-controlling interest	—		—		—		—		10.7		—			10.7
Express Scripts stockholders’ equity	23,385.0		957.9		30,417.7		12,934.1		479.6		(44,789.3		)	23,385.0
Total liabilities and stockholders’ equity	$	33,631.7	$	16,333.2	$	43,929.7	$	16,765.5	$	1,509.7	$	(54,058.6	)	$	58,111.2

100

Condensed Consolidating Statement of Operations
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2013
Revenues	$	—		$	29,927.9		$	52,736.8		$	23,273.8		$	1,517.7		$	(3,357.4	)	$	104,098.8
Operating expenses	—			28,380.5			52,498.3			21,988.0			1,037.7			(3,357.4		)	100,547.1
Operating income	—			1,547.4			238.5			1,285.8			480.0			—			3,551.7
Other (expense) income, net	(343.9		)	(148.8		)	(23.5		)	5.4			(10.6		)	—			(521.4		)
Income (loss) before income taxes	(343.9		)	1,398.6			215.0			1,291.2			469.4			—			3,030.3
Provision (benefit) for income taxes	(124.8		)	533.0			93.3			470.6			131.9			—			1,104.0
Net income (loss) from continuing operations	(219.1		)	865.6			121.7			820.6			337.5			—			1,926.3
Net loss from discontinued operations, net of tax	—			—			—			—			(53.6		)	—			(53.6		)
Equity in earnings of subsidiaries	2,063.7			803.5			272.9			—			—			(3,140.1		)	—
Net income	$	1,844.6		$	1,669.1		$	394.6		$	820.6		$	283.9		$	(3,140.1	)	$	1,872.7
Less: Net income attributable to non-controlling interest	—			—			—			—			28.1			—			28.1
Net income attributable to Express Scripts	1,844.6			1,669.1			394.6			820.6			255.8			(3,140.1		)	1,844.6
Other comprehensive loss, net of tax	(7.2		)	(7.2		)	—			—			(7.2		)	14.4			(7.2		)
Comprehensive income attributable to Express Scripts	$	1,837.4		$	1,661.9		$	394.6		$	820.6		$	248.6		$	(3,125.7	)	$	1,837.4
For the year ended December 31, 2012
Revenues	$	—		$	29,763.1		$	43,085.7		$	22,007.8		$	1,329.8		$	(2,472.1	)	$	93,714.3
Operating expenses	—			28,591.8			43,090.3			20,573.7			1,136.7			(2,472.1		)	90,920.4
Operating income	—			1,171.3			(4.6		)	1,434.1			193.1			—			2,793.9
Other (expense) income, net	(373.7		)	(180.1		)	(49.4		)	(2.2		)	11.9			—			(593.5		)
Income (loss) before income taxes	(373.7		)	991.2			(54.0		)	1,431.9			205.0			—			2,200.4
Provision (benefit) for income taxes	(142.1		)	449.6			(20.4		)	550.8			0.1			—			838.0
Net income (loss) from continuing operations	(231.6		)	541.6			(33.6		)	881.1			204.9			—			1,362.4
Net loss from discontinued operations, net of tax	—			—			—			—			(32.3		)	—			(32.3		)
Equity in earnings of subsidiaries	1,544.5			740.0			296.5			—			—			(2,581.0		)	—
Net income	$	1,312.9		$	1,281.6		$	262.9		$	881.1		$	172.6		$	(2,581.0	)	$	1,330.1
Less: Net income attributable to non-controlling interest	—			—			—			—			17.2			—			17.2
Net income attributable to Express Scripts	1,312.9			1,281.6			262.9			881.1			155.4			(2,581.0		)	1,312.9
Other comprehensive income, net of tax	1.9			1.9			—			—			1.9			(3.8		)	1.9
Comprehensive income attributable to Express Scripts	$	1,314.8		$	1,283.5		$	262.9		$	881.1		$	157.3		$	(2,584.8	)	$	1,314.8

101

Condensed Consolidating Statement of Operations
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.		Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2011
Revenues	$	—		$	29,450.9		$	—	$	16,520.3		$	157.1		$	—		$	46,128.3
Operating expenses	—			27,847.9			—		15,841.3			124.7			—			43,813.9
Operating income	—			1,603.0			—		679.0			32.4			—			2,314.4
Other (expense) income, net	(22.2		)	(259.8		)	—		(5.9		)	0.6			—			(287.3		)
Income (loss) before income taxes	(22.2		)	1,343.2			—		673.1			33.0			—			2,027.1
Provision (benefit) for income taxes	(8.1		)	487.9			—		263.8			5.0			—			748.6
Net income (loss) from continuing operations	(14.1		)	855.3			—		409.3			28.0			—			1,278.5
Equity in earnings of subsidiaries	1,289.9			434.6			—		—			—			(1,724.5		)	—
Net income	$	1,275.8		$	1,289.9		$	—	$	409.3		$	28.0		$	(1,724.5	)	$	1,278.5
Less: Net income attributable to non-controlling interest	—			—			—		—			2.7			—			2.7
Net income attributable to Express Scripts	1,275.8			1,289.9			—		409.3			25.3			(1,724.5		)	1,275.8
Other comprehensive loss, net of tax	(2.8		)	(2.8		)	—		—			(2.8		)	5.6			(2.8		)
Comprehensive income attributable to Express Scripts	$	1,273.0		$	1,287.1		$	—	$	409.3		$	22.5		$	(1,718.9	)	$	1,273.0

102

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2013
Net cash flows provided by (used in) operating activities	$	(214.1	)	$	2,731.3		$	765.9		$	556.0		$	929.1		$	(10.7	)	$	4,757.5
Cash flows from investing activities:
Purchases of property and equipment	—			(398.3		)	—			(16.5		)	(8.2		)	—			(423.0		)
Proceeds from the sale of business	—			1.6			—			355.3			—			—			356.9
Acquisitions, net of cash acquired	—			—			—			—			(14.5		)	—			(14.5		)
Other	—			14.0			—			—			(3.4		)	—			10.6
Net cash (used in) provided by investing activities—continuing operations	—			(382.7		)	—			338.8			(26.1		)	—			(70.0		)
Net cash used in investing activities—discontinued operations	—			—			—			—			(2.1		)	—			(2.1		)
Net cash (used in) provided by investing activities	—			(382.7		)	—			338.8			(28.2		)	—			(72.1		)
Cash flows from financing activities:
Treasury stock acquired	(4,055.2		)	—			—			—			—			—			(4,055.2		)
Repayment of long-term debt	(631.6		)	(1,000.0		)	(300.0		)	—			—			—			(1,931.6		)
Net proceeds from employee stock plans	466.0			—			—			—			—			—			466.0
Excess tax benefit relating to employee stock-based compensation	—			26.6			16.1			—			—			—			42.7
Distributions paid to non-controlling interest	—			—			—			—			(31.7		)	—			(31.7		)
Other	—			—			—			(13.0		)	28.0			—			15.0
Net intercompany transactions	4,434.9			(2,575.9		)	(478.4		)	(964.7		)	(415.9		)	—			—
Net cash (used in) provided by financing activities—continuing operations	214.1			(3,549.3		)	(762.3		)	(977.7		)	(419.6		)	—			(5,494.8		)
Net cash used in financing activities— discontinued operations	—			—			—			—			(10.7		)	10.7			—
Net cash (used in) provided by financing activities	214.1			(3,549.3		)	(762.3		)	(977.7		)	(430.3		)	10.7			(5,494.8		)
Effect of foreign currency translation adjustment	—			—			—			—			(5.7		)	—			(5.7		)
Less cash attributable to discontinued operations	—			—			—			—			13.4			—			13.4
Net (decrease) increase in cash and cash equivalents	—			(1,200.7		)	3.6			(82.9		)	478.3			—			(801.7		)
Cash and cash equivalents at beginning of year	—			2,346.6			—			126.9			319.6			—			2,793.1
Cash and cash equivalents at end of year	$	—		$	1,145.9		$	3.6		$	44.0		$	797.9		$	—		$	1,991.4

103

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations		Consolidated
For the year ended December 31, 2012
Net cash flows provided by (used in) operating activities	$	(147.3	)	$	655.1		$	3,355.4		$	916.7		$	1.7		$	—	$	4,781.6
Cash flows from investing activities:
Purchases of property and equipment	—			(70.0		)	—			(85.9		)	(4.3		)	—		(160.2		)
Proceeds from the sale of business	—			31.5			30.0			—			—			—		61.5
Acquisitions, net of cash acquired	(10,283.6		)	—			—			—			(42.4		)	—		(10,326.0		)
Other	—			(5.0		)	—			—			1.0			—		(4.0		)
Net cash (used in) provided by investing activities—continuing operations	(10,283.6		)	(43.5		)	30.0			(85.9		)	(45.7		)	—		(10,428.7		)
Acquisitions, cash acquired— discontinued operations	—			—			—			—			42.4			—		42.4
Net cash used in investing activities— discontinued operations	—			—			—			(3.8		)	(1.6		)	—		(5.4		)
Net cash (used in) provided by investing activities	(10,283.6		)	(43.5		)	30.0			(89.7		)	(4.9		)	—		(10,391.7		)
Cash flows from financing activities:
Repayment of long-term debt	(1,368.4		)	(1,000.1		)	(1,500.0		)	—			—			—		(3,868.5		)
Net proceeds from employee stock plans	295.2			—			30.8			—			—			—		326.0
Excess tax benefit relating to employee stock-based compensation	—			37.2			8.1			—			—			—		45.3
Distributions paid to non-controlling interest	—			—			—			—			(8.1		)	—		(8.1		)
Proceeds from long-term debt, net of discounts	7,458.9			—			—			—			—			—		7,458.9
Repayment of revolving credit line, net	—			—			(1,000.0		)	—			—			—		(1,000.0		)
Proceeds from accounts receivable financing facility	—			—			—			—			600.0			—		600.0
Repayment of accounts receivable financing facility	—			—			—			—			(600.0		)	—		(600.0		)
Deferred financing fees	(52.4		)	(50.8		)	—			—			—			—		(103.2		)
Net intercompany transactions	4,097.6			(2,773.5		)	(924.3		)	(705.5		)	305.7			—		—
Net cash provided by (used in) financing activities—continuing operations	10,430.9			(3,787.2		)	(3,385.4		)	(705.5		)	297.6			—		2,850.4
Net cash used in financing activities— discontinued operations	—			—			—			—			(26.8		)	—		(26.8		)
Net cash provided by (used in) financing activities	10,430.9			(3,787.2		)	(3,385.4		)	(705.5		)	270.8			—		2,823.6
Effect of foreign currency translation adjustment	—			—			—			—			2.0			—		2.0
Less cash attributable to discontinued operations	—			—			—			—			(42.5		)	—		(42.5		)
Net (decrease) increase in cash and cash equivalents	—			(3,175.6		)	—			121.5			227.1			—		(2,827.0		)
Cash and cash equivalents at beginning of year	—			5,522.2			—			5.4			92.5			—		5,620.1
Cash and cash equivalents at end of year	$	—		$	2,346.6		$	—		$	126.9		$	319.6		$	—	$	2,793.1

104

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.		Guarantors			Non- Guarantors			Eliminations		Consolidated
For the year ended December 31, 2011
Net cash flows provided by (used in) operating activities	$	(14.1	)	$	1,426.4		$	—	$	753.1		$	27.7		$	—	$	2,193.1
Cash flows from investing activities:
Purchases of property and equipment	—			(124.9		)	—		(13.4		)	(6.1		)	—		(144.4		)
Other	—			(1.0		)	—		1.3			20.2			—		20.5
Net cash (used in) provided by investing activities	—			(125.9		)	—		(12.1		)	14.1			—		(123.9		)
Cash flows from financing activities:
Treasury stock acquired	—			(2,515.7		)	—		—			—			—		(2,515.7		)
Repayment of long-term debt	—			(0.1		)	—		—			—			—		(0.1		)
Net proceeds from employee stock plans	—			32.2			—		—			—			—		32.2
Excess tax benefit relating to employee stock-based compensation	—			28.3			—		—			—			—		28.3
Distributions paid to non-controlling interest	—			—			—		—			(1.1		)	—		(1.1		)
Proceeds from long-term debt, net of discounts	4,086.3			1,494.0			—		—			—			—		5,580.3
Deferred financing fees	(29.2		)	(62.4		)	—		—			—			—		(91.6		)
Other	—			(2.9		)	—		—			—			—		(2.9		)
Net intercompany transactions	(4,043.0		)	4,791.6			—		(744.6		)	(4.0		)	—		—
Net cash provided by (used in) financing activities	14.1			3,765.0			—		(744.6		)	(5.1		)	—		3,029.4
Effect of foreign currency translation adjustment	—			—			—		—			(2.2		)	—		(2.2		)
Net increase (decrease) in cash and cash equivalents	—			5,065.5			—		(3.6		)	34.5			—		5,096.4
Cash and cash equivalents at beginning of year	—			456.7			—		9.0			58.0			—		523.7
Cash and cash equivalents at end of year	$	—		$	5,522.2		$	—	$	5.4		$	92.5		$	—	$	5,620.1

105

Item 9 — Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A — Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of December 31, 2013. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of December 31, 2013, our disclosure controls and procedures were (1) designed to ensure that material information relating to us, including our consolidated subsidiaries, is made known to our Chief Executive Officer and Chief Financial Officer by others within those entities, particularly during the period in which this report was being prepared, and (2) effective, in that they provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act are recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act are accumulated and communicated to the appropriate members of our management team, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act). Under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 1992. Based on our evaluation under the framework in the 1992 Internal Control — Integrated Framework, our management concluded that our internal control over financial reporting was effective as of December 31, 2013.

The effectiveness of our internal control over financial reporting as of December 31, 2013, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is set forth in Part II — Item 8 of this annual report on Form 10-K.

Changes in Internal Control Over Financial Reporting

On April 2, 2012, the Company acquired Medco Health Solutions, Inc. (“Medco”). As a result of the acquisition of Medco, the Company has incorporated internal controls over significant processes specific to the acquisition that it believes to be appropriate and necessary in consideration of the level of related integration. The Company transitioned selected billing and adjudication processes to a consolidated platform throughout 2013. As the Company further integrates the Medco business, it will continue to review the internal controls and take further steps to ensure that the internal controls are effective and integrated appropriately.

On May 14, 2013, the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) issued an updated version of its Internal Control — Integrated Framework (“2013 Framework”). Originally issued in 1992 (“1992 Framework”), the framework helps organizations design, implement and evaluate the effectiveness of internal control concepts and simplify their use and application. The 1992 Framework will remain available during the transition period, which extends to December 15, 2014, after which time COSO will consider it as superseded by the 2013 Framework. As of December 31, 2013, the Company is utilizing the 1992 Framework.

Except for the paragraphs above, no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the quarter ended December 31, 2013 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B — Other Information

None.

106

PART III

Item 10 — Directors, Executive Officers and Corporate Governance

The information required by this item will be incorporated by reference from our definitive Proxy Statement for our 2014 Annual Meeting of Stockholders to be filed pursuant to Regulation 14A (the “Proxy Statement”) under the headings “Proxy Item No. 1: Election of Directors,” “Section 16(a) Beneficial Ownership Reporting Compliance” and “Corporate Governance,” provided that some of the information regarding our executive officers required by Item 401 of Regulation S-K has been included in Part I of this report.

We have adopted a code of ethics that applies to our directors, officers and employees, including our principal executive officer, principal financial officer, principal accounting officer, controller or persons performing similar functions (the “senior financial officers”). A copy of this code of business conduct and ethics is posted on the investor information section of our website at www.express-scripts.com and a print copy is available to any stockholder who requests a copy. In the event the code of ethics is revised, or any waiver is granted under the code of ethics with respect to any director, executive officer or senior financial officer, notice of such revision or waiver will be posted on our website. Information included on our website is not part of this annual report.

Item 11 — Executive Compensation

The information required by this item will be incorporated by reference from the Proxy Statement under the headings “Directors’ Compensation,” “Compensation Committee Report,” “Compensation Committee Interlocks and Insider Participation” and “Executive Compensation.”

Item 12 — Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this item will be incorporated by reference from the Proxy Statement under the headings “Security Ownership of Certain Beneficial Owners and Management” and “Securities Authorized for Issuance under Equity Compensation Plans.”

Item 13 — Certain Relationships and Related Transactions, and Director Independence

The information required by this item will be incorporated by reference from the Proxy Statement under the headings “Certain Relationships and Related Party Transactions” and “Corporate Governance.”

Item 14 — Principal Accounting Fees and Services

The information required by this item will be incorporated by reference from the Proxy Statement under the heading “Principal Accountant Fees.”

107

PART IV

Item 15 — Exhibits, Financial Statement Schedules

Documents filed as part of this Report:

(1) Financial Statements

The following report of independent registered public accounting firm and our consolidated financial statements are contained in Item 8 — Consolidated Financial Statements and Supplementary Data of this Report

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheet as of December 31, 2013 and 2012

Consolidated Statement of Operations for the years ended December 31, 2013, 2012 and 2011

Consolidated Statement of Comprehensive Income for the years ended December 31, 2013, 2012 and 2011

Consolidated Statement of Changes in Stockholders’ Equity for the years ended December 31, 2013, 2012 and 2011

Consolidated Statement of Cash Flows for the years ended December 31, 2013, 2012 and 2011

Notes to Consolidated Financial Statements

(2) The following financial statement schedule is contained in this Report.

II. Valuation and Qualifying Accounts and Reserves for the years ended December 31, 2013, 2012 and 2011

All other schedules are omitted because they are not applicable or the required information is shown in the consolidated financial statements or the notes thereto.

(3) List of Exhibits

See Index to Exhibits on the pages below. The Company agrees to furnish to the SEC, upon request, copies of any long-term debt instruments that authorize an amount of securities constituting 10% or less of the total assets of Express Scripts Holding Company and its subsidiaries on a consolidated basis.

108

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	EXPRESS SCRIPTS HOLDING COMPANY
February 20, 2014	By:	/s/ George Paz
		George Paz
		Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ George Paz
George Paz	Chairman and Chief Executive Officer	February 20, 2014
/s/ Cathy R. Smith
Cathy R. Smith	Executive Vice President and Chief Financial Officer	February 20, 2014
/s/ Christopher K. Knibb
Christopher K. Knibb	Vice President and Chief Accounting Officer	February 20, 2014
/s/ Gary G. Benanav
Gary G. Benanav	Director	February 20, 2014
/s/ Maura C. Breen
Maura C. Breen	Director	February 20, 2014
/s/ William J. DeLaney
William J. DeLaney	Director	February 20, 2014
/s/ Nicholas J. LaHowchic
Nicholas J. LaHowchic	Director	February 20, 2014
/s/ Thomas P. Mac Mahon
Thomas P. Mac Mahon	Director	February 20, 2014
/s/ Frank Mergenthaler
Frank Mergenthaler	Director	February 20, 2014
/s/ Woodrow A. Myers, Jr.
Woodrow A. Myers, Jr.	Director	February 20, 2014
/s/ John O. Parker
John O. Parker	Director	February 20, 2014
/s/ William L. Roper
William L. Roper	Director	February 20, 2014
/s/ Samuel K. Skinner
Samuel K. Skinner	Director	February 20, 2014
/s/ Seymour Sternberg
Seymour Sternberg	Director	February 20, 2014

109

EXPRESS SCRIPTS HOLDING COMPANY

Schedule II — Valuation and Qualifying Accounts and Reserves of Continuing Operations

Years Ended December 31, 2013, 2012 and 2011

Col. A	Col. B		Col. C				Col. D		Col. E
(in millions)			Additions
Description	Balance at Beginning of Period		Charges to Costs and Expenses		Charges to Other Accounts		Deductions(1)		Balance at End of Period
Allowance for Doubtful Accounts Receivable
Year ended 12/31/11	$	64.8	$	11.6	$	—	$	20.8	$	55.6
Year ended 12/31/12	55.6		145.8		—		68.9		132.5
Year ended 12/31/13	132.5		115.7		—		46.0		202.2
Valuation Allowance for Deferred Tax Assets
Year ended 12/31/11	$	23.2	$	1.9	$	—	$	—	$	25.1
Year ended 12/31/12	25.1		4.2		6.1		—		35.4
Year ended 12/31/13	35.4		31.5		—		—		66.9

(1) Except as otherwise described, these deductions are primarily write-offs of receivable amounts, net of any recoveries.

110

INDEX TO EXHIBITS

(Express Scripts Holding Company – Commission File Number 1-35490)

Exhibit No.	Title
2.1(1)	Stock and Interest Purchase Agreement, dated as of April 9, 2009, among Express Scripts, Inc. and WellPoint, Inc., incorporated by reference to Exhibit No. 2.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed April 14, 2009, File No. 000-20199.
2.2(1)	Agreement and Plan of Merger, dated as of July 20, 2011, by and among Express Scripts, Inc., Medco Health Solutions, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), Aristotle Merger Sub, Inc. and Plato Merger Sub, Inc., incorporated by reference to Exhibit 2.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed July 22, 2011, File No. 000-20199.
2.3	Amendment No. 1 to Agreement and Plan of Merger, dated as of November 7, 2011, by and among Express Scripts, Inc., Medco Health Solutions, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), Aristotle Merger Sub, Inc., and Plato Merger Sub, Inc., incorporated by reference to Exhibit 2.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 8, 2011, File No. 000-20199.
3.1	Amended and Restated Certificate of Incorporation of Express Scripts Holding Company, incorporated by reference to Exhibit 3.1 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 2, 2012.
3.2	Amended and Restated Bylaws of Express Scripts Holding Company, incorporated by reference to Exhibit 3.2 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 2, 2012.
4.1	Indenture, dated as of March 18, 2008, between Medco Health Solutions, Inc. and U.S. Bank Trust National Association, as Trustee, relating to Medco Health Solutions, Inc.’s 6.125% senior notes due 2013, 7.125% senior notes due 2018, 2.75% senior notes due 2015 and 4.125% senior notes due 2020, incorporated by reference to Exhibit 4.1 to Medco Health Solutions, Inc.’s Current Report on Form 8-K filed March 18, 2008, File No. 001-31312.
4.2	Form of 7.125% Notes due 2018, incorporated by reference to Exhibit 4.3 to Medco Health Solutions, Inc.’s Current Report on Form 8-K filed March 18, 2008, File No. 001-31312.
4.3	Form of 2.750% Notes due 2015, incorporated by reference to Exhibit 4.1 to Medco Health Solutions, Inc.’s Current Report on Form 8-K filed September 10, 2010, File No. 001-31312.
4.4	Form of 4.125% Notes due 2020, incorporated by reference to Exhibit 4.2 to Medco Health Solutions, Inc.’s Current Report on Form 8-K filed September 10, 2010, File No. 001-31312.
4.5	First Supplemental Indenture, dated as of April 2, 2012, among Medco Health Solutions, Inc., Express Scripts Holding Company, the other subsidiaries of Express Scripts Holding Company party thereto and U.S. Bank Trust National Association, as Trustee, incorporated by reference to Exhibit 4.3 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 6, 2012.
4.6	Second Supplemental Indenture, dated as of May 29, 2012, among Medco Health Solutions, Inc., Express Scripts Holding Company, the other subsidiaries of Express Scripts Holding Company party thereto and U.S. Bank Trust National Association, as Trustee, incorporated by reference to Exhibit 4.3 to Express Scripts Holding Company’s Current Report on Form 8-K filed June 4, 2012.
4.7(2)	Third Supplemental Indenture, dated as of October 21, 2013, among Medco Health Solutions, Inc., United BioSource Holdings, Inc., Express Scripts Pharmacy, Inc. and U.S. Bank Trust National Association, as Trustee.
4.8	Indenture, dated as of June 9, 2009, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit No. 4.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed June 10, 2009, File No. 000-20199.
4.9	First Supplemental Indenture, dated as of June 9, 2009, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, related to Express Scripts, Inc.’s 5.25% senior notes due 2012, incorporated by reference to Exhibit No. 4.2 to Express Scripts, Inc.’s Current Report on Form 8-K filed June 10, 2009, File No. 000-20199.
4.10	Second Supplemental Indenture, dated as of June 9, 2009, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, related to Express Scripts, Inc.’s 6.25% senior notes due 2014, incorporated by reference to Exhibit No. 4.3 to Express Scripts, Inc.’s Current Report on Form 8-K filed June 10, 2009, File No. 000-20199.

111

Exhibit No.	Title
4.11	Third Supplemental Indenture, dated as of June 9, 2009, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, related to Express Scripts, Inc.’s 7.25% senior notes due 2019, incorporated by reference to Exhibit No. 4.4 to Express Scripts, Inc.’s Current Report on Form 8-K filed June 10, 2009, File No. 000-20199.
4.12	Fourth Supplemental Indenture, dated as of December 1, 2009, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit 4.6 to Express Scripts, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2011, File No. 000-20199.
4.13	Fifth Supplemental Indenture, dated as of April 26, 2011, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit 4.7 to Express Scripts, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2011, File No. 000-20199.
4.14	Sixth Supplemental Indenture, dated as of May 2, 2011, among Express Scripts, Inc., the Subsidiary Guarantors party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit 4.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed May 2, 2011, File No. 000-20199.
4.15	Seventh Supplemental Indenture, dated as of November 21, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit 4.6 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 25, 2011, File No. 000-20199.
4.16	Eighth Supplemental Indenture, dated as of April 2, 2012, among Express Scripts, Inc., Express Scripts Holding Company, Medco Health Solutions, Inc., the other subsidiaries of Express Scripts Holding Company party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit 4.2 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 6, 2012.
4.17	Ninth Supplemental Indenture, dated as of May 29, 2012, among Express Scripts, Inc., Express Scripts Holding Company, Medco Health Solutions, Inc., the other subsidiaries of Express Scripts Holding Company party thereto and Union Bank, N.A., as Trustee, incorporated by reference to Exhibit 4.2 to Express Scripts Holding Company’s Current Report on Form 8-K filed June 4, 2012.
4.18(2)	Tenth Supplemental Indenture, dated as of October 21, 2013, among Express Scripts, Inc., United BioSource Holdings, Inc., Express Scripts Pharmacy, Inc. and Union Bank, N.A., as Trustee.
4.19	Indenture, dated as of November 21, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 25, 2011, File No. 000-20199.
4.20	First Supplemental Indenture, dated as of November 21, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.2 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 25, 2011, File No. 000-20199.
4.21	Second Supplemental Indenture, dated as of November 21, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.3 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 25, 2011, File No. 000-20199.
4.22	Third Supplemental Indenture, dated as of November 21, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.4 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 25, 2011, File No. 000-20199.
4.22	Fourth Supplemental Indenture, dated as of November 21, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.5 to Express Scripts, Inc.’s Current Report on Form 8-K filed November 25, 2011, File No. 000-20199.
4.24	Fifth Supplemental Indenture, dated as of February 9, 2012, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, related to Express Scripts Holding Company’s 2.100% senior notes due 2015, incorporated by reference to Exhibit 4.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed February 10, 2012, File No. 000-20199.

112

Exhibit No.	Title
4.25	Sixth Supplemental Indenture, dated as of February 9, 2012, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, related to Express Scripts Holding Company’s 2.650% senior notes due 2017, incorporated by reference to Exhibit 4.2 to Express Scripts, Inc.’s Current Report on Form 8-K filed February 10, 2012, File No. 000-20199.
4.26	Seventh Supplemental Indenture, dated as of February 9, 2012, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, related to Express Scripts Holding Company’s 3.900% senior notes due 2022, incorporated by reference to Exhibit 4.3 to Express Scripts, Inc.’s Current Report on Form 8-K filed February 10, 2012, File No. 000-20199.
4.27	Eighth Supplemental Indenture, dated as of April 2, 2012, among Express Scripts, Inc., Express Scripts Holding Company, Medco Health Solutions, Inc., the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.1 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 6, 2012.
4.28	Ninth Supplemental Indenture, dated as of May 29, 2012, among Express Scripts, Inc., Express Scripts Holding Company, Medco Health Solutions, Inc., the other subsidiaries of Express Scripts Holding Company party thereto and Wells Fargo Bank, National Association, as Trustee, incorporated by reference to Exhibit 4.1 to Express Scripts Holding Company’s Current Report on Form 8-K filed June 4, 2012.
4.29(2)	Tenth Supplemental Indenture, dated as of October 21, 2013, among Express Scripts Holding Company, United BioSource Holdings, Inc., Express Scripts Pharmacy, Inc. and Wells Fargo Bank, National Association, as Trustee.
4.30	Subsidiary Guaranty, dated as of April 2, 2012, by and among the subsidiaries of Express Scripts Holding Company party thereto as guarantors, in favor of Credit Suisse, as supplemented by that certain counterpart dated as of May 29, 2012, incorporated by reference to Exhibit 4.4 to Express Scripts Holding Company’s Current Report on Form 8-K filed June 4, 2012.
10.1(3)	Amended and Restated Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.1 to Express Scripts, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2001, File No. 000-20199.
10.2(3)	Second Amendment to the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.27 to Express Scripts, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2001, File No. 000-20199.
10.3(3)	Third Amendment to the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit A to Express Scripts, Inc.’s Proxy Statement filed April 18, 2006, File No. 000-20199.
10.4(3)	Form of Stock Option Agreement used with respect to grants of stock options by Express Scripts, Inc. under the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.3 to Express Scripts, Inc.’s Current Report on Form 8-K filed February 26, 2008, File No. 000-20199.
10.5(3)	Form of Restricted Stock Agreement used with respect to grants of restricted stock by Express Scripts, Inc. under the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.7 to Express Scripts, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2004, File No. 000-20199.
10.6(3)	Form of Performance Share Award Agreement used with respect to grants of performance shares by Express Scripts, Inc. under the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.2 to Express Scripts, Inc.’s Current Report on Form 8-K filed February 26, 2008, File No. 000-20199.
10.7(3)	Form of Stock Appreciation Right Award Agreement used with respect to grants of stock appreciation rights under the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.2 to Express Scripts, Inc.’s Current Report on Form 8-K filed March 7, 2006, File No. 000-20199.
10.8(3)	Form of Restricted Stock Unit Agreement used with respect to grants of restricted stock units by Express Scripts, Inc. under the Express Scripts, Inc. 2000 Long-Term Incentive Plan, incorporated by reference to Exhibit No. 10.4 to Express Scripts, Inc.’s Current Report on Form 8-K filed March 3, 2009, File No. 000-20199.
10.9(3)	Express Scripts, Inc. 2011 Long-Term Incentive Plan (as amended and restated effective April 2, 2012), incorporated by reference to Exhibit 10.1 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.

113

Exhibit No.	Title
10.10(3)	Form of Restricted Stock Unit Grant Notice for Non-Employee Directors used with respect to grants of restricted stock units by Express Scripts Holding Company under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.5 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.
10.11(3)	Form of Stock Option Grant Notice for Non-Employee Directors used with respect to grants of stock options by Express Scripts Holding Company under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.6 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.
10.12(3)	Form of Restricted Stock Unit Grant Notice used with respect to certain grants of restricted stock units by Express Scripts Holding Company prior to 2014 under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.12 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 2, 2012.
10.13(3)	Form of Performance Share Award Notice used with respect to certain grants of performance shares by Express Scripts Holding Company prior to 2014 under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.13 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 2, 2012.
10.14(3)	Form of Stock Option Grant Notice used with respect to certain grants of stock options by Express Scripts Holding Company prior to 2014 under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.14 to Express Scripts Holding Company’s Current Report on Form 8-K filed April 2, 2012.
10.15(3)	Express Scripts, Inc. Employee Stock Purchase Plan (as amended and restated effective April 2, 2012), incorporated by reference to Exhibit 10.2 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.
10.16(3)	Express Scripts, Inc. Amended and Restated Executive Deferred Compensation Plan (effective December 31, 2004 and grandfathered for the purposes of Section 409A of the Code), incorporated by reference to Exhibit No. 10.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed May 25, 2007, File No. 000-20199.
10.17(3)	Express Scripts, Inc. Executive Deferred Compensation Plan of 2005 (as amended and restated effective April 2, 2012), incorporated by reference to Exhibit 10.3 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.
10.18(3)	Medco Health Solutions, Inc. 2002 Stock Incentive Plan (as amended and restated effective April 2, 2012), incorporated by reference to Exhibit 10.4 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012.
10.19(3)	Form of terms and conditions for director stock option and restricted stock unit awards, incorporated by reference to Exhibit 10.2 to Medco Health Solutions, Inc.’s Current Report on Form 8-K filed February 8, 2005, File No. 001-31312.
10.20	Indemnification and Insurance Matters Agreement between Merck & Co., Inc. and Medco Health Solutions, Inc., incorporated by reference to Exhibit 10.4 to Medco Health Solutions, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 27, 2003, File No. 001-31312.
10.21(3)	Executive Employment Agreement dated as of January 13, 2014, between Express Scripts Holding Company and George Paz, incorporated by reference to Exhibit 10.1 to Express Scripts Holding Company’s Current Report on Form 8-K filed January 14, 2014.
10.22(3)	Form of Restricted Stock Unit Grant Notice used with respect to grants of restricted stock units by Express Scripts Holding Company under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.2 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2013.
10.23(3)	Form of Performance Share Award Notice used with respect to grants of performance shares by Express Scripts Holding Company under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.3 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2013.
10.24(3)	Form of Stock Option Grant Notice used with respect to grants of stock options by Express Scripts Holding Company under the Express Scripts, Inc. 2011 Long-Term Incentive Plan, incorporated by reference to Exhibit 10.1 to Express Scripts Holding Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2013.

114

Exhibit No.	Title
10.25(3)	Form of Amended and Restated Executive Employment Agreement entered into between Express Scripts, Inc. and certain key executives (including all of Express Scripts, Inc.’s named executive officers other than Mr. Paz), incorporated by reference to Exhibit 10.2 to Express Scripts, Inc.’s Current Report on Form 8-K filed October 31, 2008, File No. 000-20199.
10.26	Form of Indemnification Agreement entered into between Express Scripts, Inc. and each member of its Board of Directors, and between Express Scripts, Inc. and certain key executives (including all of Express Scripts Holding Company’s named executive officers), incorporated by reference to Exhibit 10.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed December 29, 2006, File No. 000-20199.
10.27	Credit Agreement, dated as of August 29, 2011, among Express Scripts, Inc., Express Scripts Holding Company (formerly Aristotle Holding, Inc.), Credit Suisse AG, Cayman Islands Branch, as administrative agent, Citibank, N.A., as syndication agent, and the other lenders and agents named therein, incorporated by reference to Exhibit 10.1 to Express Scripts, Inc.’s Current Report on Form 8-K filed August 30, 2011, File No. 000-20199.
11	Statement regarding computation of earnings per share (See Note 1 to the audited consolidated financial statements).
12.1(2)	Statement regarding computation of ratio of earnings to fixed charges.
21.1(2)	Subsidiaries of Express Scripts Holding Company.
23.1(2)	Consent of PricewaterhouseCoopers LLP, independent registered public accounting firm.
31.1(2)	Certification by George Paz, as Chairman and Chief Executive Officer of Express Scripts Holding Company, pursuant to Exchange Act Rule 13a-14(a).
31.2(2)	Certification by Cathy Smith, as Executive Vice President and Chief Financial Officer of Express Scripts Holding Company, pursuant to Exchange Act Rule 13a-14(a).
32.1(2)	Certification by George Paz, as Chairman and Chief Executive Officer of Express Scripts Holding Company, pursuant to 18 U.S.C.ss.1350 and Exchange Act Rule 13a-14(b).
32.2(2)	Certification by Cathy Smith, as Executive Vice President and Chief Financial Officer of Express Scripts Holding Company, pursuant to 18 U.S.C.ss. 1350 and Exchange Act Rule 13a-14(b).
101.1	XBRL Taxonomy Instance Document.
101.2	XBRL Taxonomy Extension Schema Document.
101.3	XBRL Taxonomy Extension Calculation Linkbase Document.
101.4	XBRL Taxonomy Extension Definition Linkbase Document.
101.5	XBRL Taxonomy Extension Label Linkbase Document.
101.6	XBRL Taxonomy Extension Presentation Linkbase Document.

1 The Stock and Interest Purchase Agreement listed in Exhibit 2.1 and the Merger Agreement listed in Exhibit 2.2 (collectively, the “Agreements”) are not intended to modify or supplement any factual disclosures about the parties thereto, including the Company, and should not be relied upon as disclosure about such parties without consideration of the periodic and current reports and statements that the parties thereto file with the SEC. The terms of the Agreements govern the contractual rights and relationships, and allocate risks, among the parties in relation to the transactions contemplated by the Agreements. In particular, the representations and warranties made by the parties in the Agreements reflect negotiations between, and are solely for the benefit of, the parties thereto and may be limited or modified by a variety of factors, including: subsequent events, information included in public filings, disclosures made during negotiations, correspondence between the parties and disclosure schedules and disclosure letters, as applicable, to the Agreements. Accordingly, the representations and warranties may not describe the actual state of affairs at the date they were made or at any other time and you should not rely on them as statements of fact. In addition, the representations and warranties made by the parties in the Agreements may be subject to standards of materiality applicable to the contracting parties that differ from those applicable to investors. The schedules to the Agreements have been omitted pursuant to Item 601(b)(2) of Regulation S-K and will be furnished supplementally to the SEC upon request.

2 Filed herewith.

3 Management contract or compensatory plan or arrangement.

115

EX-4.7

Exhibit 4.7

THIRD SUPPLEMENTAL INDENTURE

The Supplemental Indenture (this “Third Supplemental Indenture”), dated as of October 21, 2013, among Medco Health Solutions, Inc., a corporation duly organized and existing under the laws of the State of Delaware (the “Company”), United BioSource Holdings, Inc., a Delaware corporation, and Express Scripts Pharmacy, Inc. (each an “Additional Guarantor”, and together the “Additional Guarantors”), and U.S. Bank Trust National Association, as trustee under the indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Company, certain guarantors and the Trustee are parties to the indenture, dated as of March 18, 2008 (the “BaseIndenture”), relating to the Company’s 7.125% Notes due 2018, its 2.750% Notes due 2015 and its 4.125% Notes due 2020 (collectively, the “Notes”), as supplemented by the First Supplemental Indenture thereto, dated as of April 2, 2012 (the “First Supplemental Indenture”), to add guarantees, and the Second Supplemental Indenture thereto, dated as of May 29, 2012 (together with the First Supplemental Indenture, the “Supplemental Indentures” and the Base Indenture as so supplemented, the “Indenture”), to add guarantees;

WHEREAS, each Additional Guarantor desires to provide a full and unconditional guarantee (the “Guarantee”) of the obligations of the Company under the Notes, the Securities (as defined in the Base Indenture) and the Base Indenture on the terms and conditions set forth herein;

WHEREAS, the Company has complied with all conditions precedent provided for in the Base Indenture relating to this Third Supplemental Indenture; and

WHEREAS, pursuant to Section 901 of the Base Indenture, the Company is permitted to amend the Base Indenture to make any provision with respect to matters or questions arising under the Base Indenture, provided such action does not adversely affect the interest of the Holders.

NOW, THEREFORE, for good and valuable consideration, the receipt of which is acknowledged, the parties hereby agree as follows:

1.Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Base Indenture.

2.Unconditional Guarantee. (1) For value received, each of the Additional Guarantors hereby jointly and severally and fully and unconditionally guarantees to each Holder of a Security authenticated and delivered by the Trustee (including the Notes) and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of the Indenture or the Securities or the obligations of the Company or any other Guarantor to the Holders or the Trustee hereunder or thereunder, that: (a) the principal of, premium, if any, and interest on the Securities will be duly and promptly paid in full when due, whether at Stated Maturity, upon redemption, by acceleration or otherwise, and interest on the overdue principal and (to the extent permitted by law) interest, if any, on the Securities and all other obligations of the Company or the Guarantor to the Holders of or the Trustee hereunder or thereunder (including fees, expenses or others) (collectively, the “Obligations”) will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and (b) in case of any extension of time of payment or renewal of any Obligations (with or without notice to such Guarantor), the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at Stated Maturity, by acceleration or otherwise. If the Company shall fail to pay when due, or to perform, any Obligations, for whatever reason, each Additional Guarantor shall be jointly and severally obligated to pay in cash, or to perform or cause the performance of, the same promptly. An Event of Default under the Indenture or the Securities of a particular series shall entitle the Holders of the Securities of such series to accelerate the Obligations of each Additional Guarantor hereunder in the same manner and to the same extent as the Obligations of the Company.

(2) Each Additional Guarantor hereby agrees that its obligations hereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the Securities or the Indenture, the absence

of any action to enforce the same, any waiver or consent by any Holder of the Securities with respect to any provisions of the Indenture or the Securities, any release of any other Guarantor, the recovery of any judgment against the Company, any action to enforce the same, whether or not a Guarantee is affixed to any particular Security, or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a Guarantor.

(3) Each Additional Guarantor further agrees that, as between it, on the one hand, and the Holders of the Securities and the Trustee, on the other hand, (a) the maturity of the Obligations guaranteed hereby may be accelerated as provided in Article Five of the Base Indenture for the purposes of the Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the Obligations and (b) in the event of any acceleration of such Obligations as provided in Article Five of the Base Indenture, such Obligations (whether or not due and payable) shall forthwith become due and payable by the Guarantor for the purposes of its Guarantee.

3.Waiver. To the fullest extent permitted by applicable law, each Additional Guarantor waives diligence, presentment, demand of, payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest, notice and all demands whatsoever and covenants that the Guarantee will not be discharged except by complete performance of the Obligations contained in the Securities and the Indenture.

4.Guarantee of Payment. Each Additional Guarantor further agrees that its Guarantee constitutes a guarantee of payment, performance and compliance when due and not a guarantee of collection, and waives any right to require that any resort be had by the Trustee or any Holder of the Securities to the security, if any, held for payment of the Obligations.

5.No Discharge or Diminishment of Guarantee. Subject to Section 11 hereof, the obligations of each Additional Guarantor hereunder shall not be subject to any reduction, limitation, termination, impairment or for any reason (other than the payment in full in cash of the Obligations), including any claim of waiver, release, surrender, alteration or compromise of any of the Obligations, and shall not be subject to any defense or setoff, counterclaim, recoupment or termination whatsoever by reason of the invalidity, illegality or unenforceability of the Obligations or otherwise. Without limiting the generality of the foregoing, the obligations of each Additional Guarantor hereunder shall not be discharged or impaired or otherwise affected by the failure of the Trustee or any Holder of the Securities to assert any claim or demand or to enforce any remedy under the Indenture or the Securities, any other guarantee or any other agreement, by any waiver or modification of any provision thereof, by any default, failure or delay, willful or otherwise, in the performance of the Obligations, or by any other act or omission or delay to do any other act that may or might in any manner or to any extent vary the risk of any Guarantor or that would otherwise operate as a discharge of any Guarantor as a matter of law or equity (other than the payment in full in cash of all the Obligations).

6.Defenses of Company Waived. To the extent permitted by applicable law, each Additional Guarantor waives any defense based on or arising out of any defense of the Company or any other Guarantor or the unenforceability of the Obligations or any part thereof from any cause, or the cessation from any cause of the liability of the Company, other than final payment in full in cash of the Obligations. Each Additional Guarantor waives any defense arising out of any such election even though such election operates to impair or to extinguish any right of reimbursement or subrogation or other right or remedy of each Additional Guarantor against the Company or any security.

7.Continued Effectiveness. Subject to Section 11 hereof, each Additional Guarantor further agrees that its Guarantee hereunder shall continue to be effective or be reinstated, as the case may be, if at any time payment, or any part thereof, of principal of or interest on any Obligation is rescinded or must otherwise be restored by the Trustee or any Holder of the Securities upon the bankruptcy or reorganization of the Company or otherwise.

8.Subrogation. In furtherance of the foregoing and not in limitation of any other right of each Additional Guarantor by virtue hereof, upon the failure of the Company to pay any Obligation when and as the same shall become due, whether at maturity, by acceleration, after notice of prepayment or otherwise, each

Additional Guarantor hereby promises to and will, upon receipt of written demand by the Trustee or any Holder of the Securities, forthwith pay, or cause to be paid, to the Holders in cash the amount of such unpaid Obligations, and thereupon the Holders shall assign (except to the extent that such assignment would render a Guarantor a “creditor” of the Company within the meaning of Section 547 of Title 11 of the United States Code as now in effect or hereafter amended or any comparable provision of any successor statute) the amount of the Obligations owed to it and paid by such Additional Guarantor pursuant to this Guarantee to such Additional Guarantor, such assignment to be pro rata to the extent the Obligations in question were discharged by such Additional Guarantor, or make such other disposition thereof as such Additional Guarantor shall direct (all without recourse to the Holders, and without any representation or warranty by the Holders). If (a) an Additional Guarantor shall make payment to the Holders of all or any part of the Obligations and (b) all the Obligations and all other amounts payable under the Indenture shall be paid in full, the Trustee will, at such Additional Guarantor’s request, execute and deliver to such Additional Guarantor appropriate documents, without recourse and without representation or warranty, necessary to evidence the transfer by subrogation to such Additional Guarantor of an interest in the Obligations resulting from such payment by such Additional Guarantor.

9.Information. Each Additional Guarantor assumes all responsibility for being and keeping itself informed of the Company’s financial condition and assets, and of all other circumstances bearing upon the risk of nonpayment of the Obligations and the nature, scope and extent of the risks that each Additional Guarantor assumes and incurs hereunder, and agrees that the Trustee and the Holders of the Securities will have no duty to advise each Additional Guarantor of information known to it or any of them regarding such circumstances or risks.

10.Subordination. Upon payment by any Additional Guarantor of any sums to the Holders, as provided above, all rights of such Additional Guarantor against the Company, arising as a result thereof by way of right of subrogation or otherwise, shall in all respects be subordinated and junior in right of payment to the prior payment in full in cash of all the Obligations to the Trustee; provided, however, that any right of subrogation that such Additional Guarantor may have pursuant to the Indenture is subject to Section 8 hereof.

11.Release of Additional Guarantor. (1) An Additional Guarantor shall, upon notice by the Company to the Trustee, be automatically and unconditionally released and discharged from all obligations under the Indenture and its Guarantee without any action required on the part of the Trustee or any Holder.

(2) The Trustee shall deliver an appropriate instrument evidencing such release upon receipt of a request of the Company. Any Additional Guarantor not so released will remain liable for the full amount of the principal of, premium, if any, and interest on the Securities provided in the Indenture and its Guarantee.

12.Limitation of Additional Guarantor’s Liability. (1) Each Additional Guarantor, and by its acceptance hereof each Holder, hereby confirms that it is the intention of all such parties that the Guarantee by such Additional Guarantor not constitute a fraudulent transfer or conveyance for purposes of Title 11 of the United States Code, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to the extent applicable to any Additional Guarantor. To effectuate the foregoing intention, the Holders and such Additional Guarantor hereby irrevocably agree that the obligations of such Additional Guarantor under the Indenture and its Guarantee shall be limited to the maximum aggregate amount which, after giving effect to all other contingent and fixed liabilities of such Additional Guarantor, and after giving effect to any collections from or payments made by or on behalf of any other Guarantor in respect of the obligations of such Guarantor under its Guarantee or pursuant to its contribution obligations under the Indenture, will result in the obligations of such Additional Guarantor under its Guarantee not constituting such fraudulent transfer or conveyance.

(2) The Guarantee is expressly limited so that in no event, including the acceleration of the maturity of the Securities, shall the amount paid or agreed to be paid in respect of interest on the Securities (or fees or other amounts deemed payment for the use of funds) exceed the maximum permissible amount under applicable law, as in effect on the date hereof and as subsequently amended or modified to allow a greater amount of interest (or fees or other amounts deemed payment for the use of funds) to be paid under the Guarantee. If for any reason the amount in respect of interest (or fees or other amounts deemed payment for the use of funds) required by the Guarantee exceeds such maximum permissible amount, the obligation to pay interest under the Guarantee (or fees or other amounts deemed payment for the use of funds) shall be automatically reduced to such maximum permissible

amount and any amounts collected by any holder of any Security in excess of the permissible amount shall be automatically applied to reduce the outstanding principal on such Security.

13.Contribution from Other Guarantors. Each Additional Guarantor that makes a payment or distribution under its Guarantee shall be entitled to seek contribution from each other non-paying Guarantor in a pro rata amount based on the net assets of each Guarantor, determined in accordance with generally accepted accounting principles in effect in the United States of America as of the date hereof so long as the exercise of such right does not impair the rights of the Holders under the Guarantee.

14.No Obligation to Take Action Against the Company. Neither the Trustee, any Holder nor any other Person shall have any obligation to enforce or exhaust any rights or remedies or take any other steps under any security for the Obligations or against the Company or any other Person or any Property of the Company or any other Person before the Trustee, such Holder or such other Person is entitled to demand payment and performance by any or all Guarantors of their liabilities and obligations under their Guarantee.

15.Execution and Delivery of the Guarantee. (1) To further evidence the Guarantee set forth in this Third Supplemental Indenture, each Additional Guarantor hereby agrees that a notation of such Guarantee shall be endorsed on each Security authenticated and delivered by the Trustee and executed by either manual or facsimile signature of an officer, manager or member, as applicable, of each Additional Guarantor.

(2) Each of the Additional Guarantors hereby agrees that its Guarantee set forth in this Third Supplemental Indenture shall remain in full force and effect notwithstanding any failure to endorse on each Security a notation of such Guarantee.

(3) If an officer of an Additional Guarantor whose signature is on the Indenture or a Guarantee no longer holds that office or is no longer a manager or member, as applicable, at the time the Trustee authenticates such Guarantee or at any time thereafter, such Additional Guarantor’s Guarantee of such Security shall be valid nevertheless.

(4) The delivery of any Security by the Trustee, after the authentication thereof under the Indenture, shall constitute due delivery of any Guarantee set forth in the Indenture on behalf of each Additional Guarantor.

16.Successor Additional Guarantor. Unless otherwise released and discharged from its obligations in accordance with the Indenture, upon any consolidation or merger by any Additional Guarantor with or into any other Person, the successor Person formed by such consolidation or merger shall sign a supplemental indenture and guarantee and succeed to, and be substituted for, and may exercise every right and power of, such Additional Guarantor under the Indenture with the same effect as if such successor Person has been named as a Guarantor herein, and thereafter the predecessor Person shall be relieved of all obligations and covenants under the Indenture and the Securities (to the extent the Additional Guarantor was the predecessor Person).

17.Ratification of Base Indenture; Supplemental Indenture Part of Indenture. The Base Indenture is in all respects ratified and confirmed, and all terms, conditions and provisions thereof shall remain in full force and effect. This Third Supplemental Indenture shall form a part of the Base Indenture for all purposes, and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby.

18.Representations and Warranties. Each Additional Guarantor hereby represents that (a) it is duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization, (b) it has full power, authority and legal rights to execute and deliver this Third Supplemental Indenture and to perform its obligations hereunder and under the Base Indenture, (c) the execution, delivery and performance by it of this Third Supplemental Indenture has been duly authorized by all necessary corporate action, and no other proceedings or actions on the part of such Additional Guarantor are necessary therefor and (d) this Third Supplemental Indenture has been duly and validly executed and delivered by such Additional Guarantor and constitutes a legal, valid and binding obligation of such Additional Guarantor, enforceable against such Additional Guarantor in accordance with

its terms (subject to applicable bankruptcy, insolvency, receivership, reorganization, moratorium and other similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles).

19.No Personal Liability of Directors, Officers, Employees or Stockholders. No director, officer, employee, member or stockholder of any Additional Guarantor, as such, will have any liability for any obligations of the Company or any other Guarantor under the Securities, the Base Indenture or the Guarantees, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Securities, by accepting a Security, waives and releases the Company, each Guarantor and each Additional Guarantor from all such liability. The waiver and release are part of the consideration for issuance of the Guarantee by each Additional Guarantor.

20.GOVERNING LAW. THIS THIRD SUPPLEMENTAL INDENTURE AND THE GUARANTEES HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

21.Counterparts. This Third Supplemental Indenture may be executed in any number of counterparts, each of which shall be deemed an original; but all such counterparts shall together constitute but one and the same instrument.

22.Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

23.Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Third Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Additional Guarantors and the Company.

IN WITNESS WHEREOF, the parties hereto have caused this Third Supplemental Indenture to be duly executed, all as of the day and year first above written.

MEDCO HEALTH SOLUTIONS, INC.

By: /s/ Keith J. Ebling        

Name: Keith J. Ebling

Title: President

[Signature Page to Medco Third Supplemental Indenture to 2008 Indenture]

95798.08-TORSR01A        

ADDITIONAL GUARANTORS

UNITED BIOSOURCE HOLDINGS, INC.

By:     /s/ Keith J. Ebling             Name:    Keith J. Ebling
    Title:    President

EXPRESS SCRIPTS PHARMACY, INC.

By: /s/ Martin P. Akins        

Name: Martin P. Akins

Title: Secretary

[Signature Page to Medco Third Supplemental Indenture to 2008 Indenture]

95798.08-TORSR01A        

U.S. BANK TRUST NATIONAL ASSOCIATION, AS TRUSTEE
By
	/s/ Patrick J. Crowley
	Name: Patrick J. Crowley
	Title: Vice President

[Signature Page to 2008 Medco Third Supplemental Indenture]

95798.08-TORSR01A        

EX-4.18

Exhibit 4.18

TENTH SUPPLEMENTAL INDENTURE

The Tenth Supplemental Indenture (this “Tenth Supplemental Indenture”), dated as of October 21, 2013, among Express Scripts, Inc., a corporation duly organized and existing under the laws of the State of Delaware (the “Company”), United BioSource Holdings, Inc., a Delaware corporation, and Express Scripts Pharmacy, Inc. (each an “Additional Guarantor”, and together the “Additional Guarantors”), and Union Bank, N.A., a national banking association, as trustee under the indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Company, certain Guarantors and the Trustee are parties to the indenture, dated as of June 9, 2009 (the “Base Indenture”), as supplemented by the Third Supplemental Indenture thereto, dated as of June 9, 2009 (the “Third Supplemental Indenture”), relating to the Company’s 7.250% Notes due 2019 (the “2019 Notes”), the Fourth Supplemental Indenture thereto, dated as of December 1, 2009 (the “Fourth Supplemental Indenture”), to add subsidiary guarantees, the Fifth Supplemental Indenture thereto, dated as of April 26, 2011 (the “Fifth Supplemental Indenture”), to add subsidiary guarantees, the Sixth Supplemental Indenture thereto, dated as of May 2, 2011 (the “Sixth Supplemental Indenture”), relating to the Company’s 3.125% Notes due 2016 (the “2016 Notes” and together with the 2019 Notes, the “Notes”), the Seventh Supplemental Indenture thereto, dated as of November 21, 2011 (the “Seventh Supplemental Indenture”), to add subsidiary guarantees, the Eighth Supplemental Indenture thereto, dated as of April 2, 2012 (the “Eighth Supplemental Indenture”), to add guarantees, and the Ninth Supplemental Indenture thereto, dated as of May 29, 2012 (together with the Second Supplemental Indenture, the Third Supplemental Indenture, the Fourth Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental Indenture, the Seventh Supplemental Indenture and the Eighth Supplemental Indenture, the “Supplemental Indentures” and the Base Indenture as so supplemented, the “Indenture”), to add guarantees;

WHEREAS, each Additional Guarantor desires to provide a full and unconditional guarantee (the “Guarantee”) of the obligations of the Company under the Notes, the Securities (as defined in the Indenture) and the Indenture on the terms and conditions set forth herein;

WHEREAS, the Company has complied with all conditions precedent provided for in the Base Indenture and each Supplemental Indenture relating to this Tenth Supplemental Indenture;

WHEREAS, Section 7.1 of the Third Supplemental Indenture provides that without seeking the consent of any Holders, the Company, together with the Trustee, at any time and from time to time, may modify and amend the Third Supplemental Indenture to add one or more guarantors and to make any amendment that does not adversely affect the interests of the Holders of any 2019 Notes in any material respect;

WHEREAS, Section 7.1 of the Third Supplemental Indenture provides that no amendment to cure any ambiguity, defect or inconsistency in the Third Supplemental Indenture made solely to conform the Third Supplemental Indenture to the Description of the Notes contained in the Company’s prospectus supplement dated June 4, 2009, to the extent that such provision in the Description of the Notes was intended to be a verbatim recitation of a provision of the Third Supplemental Indenture shall be deemed to adversely affect the interest of the Holders of any 2019 Notes;

WHEREAS, Section 7.1 of the Sixth Supplemental Indenture provides that, without seeking the consent of any Holders, the Company, together with the Trustee, at any time and from time to time, may modify and amend the Sixth Supplemental Indenture to (i) make any amendment that cures any defect or inconsistency or (ii) make any amendment that does not adversely affect the interests of the Holders of any 2016 Notes in any material respect; and

WHEREAS, Section 7.1 of the Sixth Supplemental Indenture provides that, no amendment to cure any ambiguity, defect or inconsistency in the Sixth Supplemental Indenture made solely to conform the Sixth Supplemental Indenture to the Description of the Notes contained in the Company’s prospectus supplement dated

June 4, 2009 [sic], to the extent that such provision in the Description of the Notes was intended to be a verbatim recitation of a provision of the Sixth Supplemental Indenture shall be deemed to adversely affect the interest of the Holders of any 2016 Notes.

NOW, THEREFORE, for good and valuable consideration, the receipt of which is acknowledged, the parties hereby agree as follows:

1.Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2.Guarantee, Etc. Each Additional Guarantor hereby agrees that from and after the date hereof it shall be a Guarantor under the Indenture and be bound by the terms thereof applicable to Guarantors and shall be entitled to all of the rights and subject to all of the obligations of a Guarantor thereunder.

3.Cross-Default. Section 4.1 of each the Third Supplemental Indenture and the Sixth Supplemental Indenture is hereby amended to replace clause (3) of the definition of “Event of Default” in its entirety as follows:

“default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness for money borrowed by the Company or any Restricted Subsidiary (or the payment of which is guaranteed by any Restricted Subsidiary), if that default is caused by a failure to pay principal at its Stated Maturity after giving effect to any applicable grace period, or results in the acceleration of such Indebtedness prior to its Stated Maturity and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other Indebtedness under which there has been a payment default after Stated Maturity or the maturity of which has been so accelerated, aggregates $100,000,000 or more;”

4.Ratification of Indenture; Supplemental Indenture Part of Indenture. The Indenture is in all respects ratified and confirmed, and all terms, conditions and provisions thereof shall remain in full force and effect, except to the extent that such terms, conditions or provisions may have been amended hereby. This Tenth Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby.

5.Representations and Warranties. Each Additional Guarantor hereby represents that (a) it is duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization, (b) it has full power, authority and legal rights to execute and deliver this Tenth Supplemental Indenture and to perform its obligations hereunder and under the Indenture, (c) the execution, delivery and performance by it of this Tenth Supplemental Indenture has been duly authorized by all necessary corporate action, and no other proceedings or actions on the part of such Additional Guarantor are necessary therefor and (d) this Tenth Supplemental Indenture has been duly and validly executed and delivered by such Additional Guarantor and constitutes a legal, valid and binding obligation of such Additional Guarantor, enforceable against such Additional Guarantor in accordance with its terms (subject to applicable bankruptcy, insolvency, receivership, reorganization, moratorium and other similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles).

6.No Personal Liability of Directors, Officers, Employees or Stockholders. No director, officer, employee, member or stockholder of any Additional Guarantor, as such, will have any liability for any obligations of the Company or any other Guarantor under the Securities, the Indenture or the Guarantees, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Securities, by accepting a Security, waives and releases the Company, each Guarantor and each Additional Guarantor from all such liability. The waiver and release are part of the consideration for issuance of the Guarantee by the Additional Guarantors.

7.GOVERNING LAW. THIS TENTH SUPPLEMENTAL INDENTURE AND THE GUARANTEES HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

8.Counterparts. This Tenth Supplemental Indenture may be executed in any number of counterparts, each of which shall be deemed an original; but all such counterparts shall together constitute but one and the same instrument.

9.Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

10.Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Tenth Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by each Additional Guarantor and the Company.

IN WITNESS WHEREOF, the parties hereto have caused this Tenth Supplemental Indenture to be duly executed, all as of the day and year first above written.

EXPRESS SCRIPTS, INC.

By:     /s/ Keith J. Ebling            Name: Keith J. Ebling    Title: President

ADDITIONAL GUARANTORS

UNITED BIOSOURCE HOLDINGS, INC.

By:     /s/ Keith J. Ebling            
    Name:    Keith J. Ebling
    Title:    President

EXPRESS SCRIPTS PHARMACY, INC.

By:     /s/ Martin P. Akins            
    Name:    Martin P. Akins
    Title:    Secretary

[Signature Page to Express Scripts, Inc. Tenth Supplemental Indenture]

95777.11-TORSR01A        

UNION BANK, N.A., AS TRUSTEE
By
	/s/ Patricia Phillips-Coward
	Name: Patricia Phillips-Coward
	Title: Vice President

[Signature Page to Express Scripts, Inc. Tenth Supplemental Indenture]

95777.11-TORSR01A        

EX-4.29

Exhibit 4.29

TENTH SUPPLEMENTAL INDENTURE

The Tenth Supplemental Indenture (this “Tenth Supplemental Indenture”), dated as of October 21, 2013, among Express Scripts Holding Company (formerly Aristotle Holding, Inc.), a corporation duly organized and existing under the laws of the State of Delaware (the “Company”), United BioSource Holdings, Inc., a Delaware corporation, and Express Scripts Pharmacy, Inc. (each an “Additional Guarantor”, and together the “Additional Guarantors”), and Wells Fargo Bank, National Association, as trustee under the indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Company, certain Guarantors and the Trustee are parties to the indenture, dated as of November 21, 2011 (the “Base Indenture”), as supplemented by the First Supplemental Indenture thereto, dated as of November 21, 2011 (the “First Supplemental Indenture”), relating to the Company’s 2.750% Notes due 2014 (the “2014 Notes”), the Second Supplemental Indenture thereto, dated as of November 21, 2011 (the “Second Supplemental Indenture”), relating to the Company’s 3.500% Notes due 2016 (the “2016 Notes”), the Third Supplemental Indenture thereto, dated as of November 21, 2011 (the “Third Supplemental Indenture”), relating to the Company’s 4.750% Notes due 2021 (the “2021 Notes”), the Fourth Supplemental Indenture thereto, dated as of November 21, 2011 (the “Fourth Supplemental Indenture”), relating to the Company’s 6.125% Notes due 2041 (the “2041 Notes”), the Fifth Supplemental Indenture thereto, dated as of February 9, 2012 (the “Fifth Supplemental Indenture”), relating to the Company’s 2.100% Notes due 2015 (the “2015 Notes”), the Sixth Supplemental Indenture thereto, dated as of February 9, 2012 (the “Sixth Supplemental Indenture”), relating to the Company’s 2.650% Notes due 2017 (the “2017 Notes”), the Seventh Supplemental Indenture thereto, dated as of February 9, 2012 (the “Seventh Supplemental Indenture”), relating to the Company’s 3.900% Notes due 2022 (together with the 2014 Notes, the 2016 Notes, the 2021 Notes, the 2041 Notes, the 2015 Notes and the 2017 Notes, the “Notes”), the Eighth Supplemental Indenture thereto, dated as of April 2, 2012 (the “Eighth Supplemental Indenture”), to add guarantees, and the Ninth Supplemental Indenture thereto, dated as of May 29, 2012 (together with the First Supplemental Indenture, the Second Supplemental Indenture, the Third Supplemental Indenture, the Fourth Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental Indenture, the Seventh Supplemental Indenture and the Eighth Supplemental Indenture, the “Supplemental Indentures” and the Base Indenture as so supplemented, the “Indenture”), to add guarantees;

WHEREAS, each Additional Guarantor desires to provide a full and unconditional guarantee (the “Guarantee”) of the obligations of the Company under the Notes, the Securities (as defined in the Indenture) and the Indenture on the terms and conditions set forth herein;

WHEREAS, the Company has complied with all conditions precedent provided for in the Base Indenture and each Supplemental Indenture relating to this Tenth Supplemental Indenture;

WHEREAS, Section 7.1 of each the First Supplemental Indenture, the Second Supplemental Indenture, the Third Supplemental Indenture, the Fourth Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental Indenture and the Seventh Supplemental Indenture provides that without seeking the consent of any Holders, the Company, together with the Trustee, at any time and from time to time, may modify and amend the Base Indenture to add one or more guarantors and to make any amendment that does not adversely affect the interests of the Holders of any Securities in any material respect;

WHEREAS, Section 7.1 of each the First Supplemental Indenture, the Second Supplemental Indenture, the Third Supplemental Indenture, the Fourth Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental Indenture and the Seventh Supplemental Indenture provides that no amendment to cure any ambiguity, defect or inconsistency in the Base Indenture or the applicable Supplemental Indenture made solely to conform the Base Indenture or the applicable Supplemental Indenture to any description of the Securities in the offering circular therefor, to the extent that such provision in the offering circular was intended to be a verbatim

recitation of a provision of the Base Indenture or the applicable Supplemental Indenture, shall be deemed to adversely affect the interest of the Holder of any Securities.

WHEREAS, pursuant to Section 7.1 of each of the First Supplemental Indenture, the Second Supplemental Indenture, the Third Supplemental Indenture, the Fourth Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental Indenture and the Seventh Supplemental Indenture, the Company, the Trustee and the Additional Guarantors are authorized to execute and deliver this Tenth Supplemental Indenture.

NOW, THEREFORE, for good and valuable consideration, the receipt of which is acknowledged, the parties hereby agree as follows:

1.Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2.Guarantee, Etc. Each Additional Guarantor hereby agrees that from and after the date hereof it shall be a Guarantor under the Indenture and be bound by the terms thereof applicable to Guarantors and shall be entitled to all of the rights and subject to all of the obligations of a Guarantor thereunder.

3.Cross-Default. Section 5.1(3) of the Base Indenture is hereby amended and restated in its entirety as follows:

“default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness for money borrowed by the Company or any Restricted Subsidiary (or the payment of which is guaranteed by any Restricted Subsidiary), if that default is caused by a failure to pay principal at its stated maturity after giving effect to any applicable grace period, or results in the acceleration of such Indebtedness prior to its stated maturity and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other Indebtedness under which there has been a payment default after stated maturity or the maturity of which has been so accelerated, aggregates $100 million or more;”

4.Ratification of Indenture; Supplemental Indenture Part of Indenture. The Indenture is in all respects ratified and confirmed, and all terms, conditions and provisions thereof shall remain in full force and effect, except to the extent that such terms, conditions or provisions may have been amended hereby. This Tenth Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby.

5.Representations and Warranties. Each Additional Guarantor hereby represents that (a) it is duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization, (b) it has full power, authority and legal rights to execute and deliver this Tenth Supplemental Indenture and to perform its obligations hereunder and under the Indenture, (c) the execution, delivery and performance by it of this Tenth Supplemental Indenture has been duly authorized by all necessary corporate action, and no other proceedings or actions on the part of such Additional Guarantor are necessary therefor and (d) this Tenth Supplemental Indenture has been duly and validly executed and delivered by such Additional Guarantor and constitutes a legal, valid and binding obligation of such Additional Guarantor, enforceable against such Additional Guarantor in accordance with its terms (subject to applicable bankruptcy, insolvency, receivership, reorganization, moratorium and other similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles).

6.No Personal Liability of Directors, Officers, Employees or Stockholders. No director, officer, employee, member or stockholder of any Additional Guarantor, as such, will have any liability for any obligations of the Company, or any other Guarantor under the Securities, the Indenture or the Guarantees, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Securities, by accepting a Security, waives and releases the Company, each Guarantor and each Additional Guarantor from all such liability. The waiver and release are part of the consideration for issuance of the Guarantee by the Additional Guarantors.

7.GOVERNING LAW. THIS TENTH SUPPLEMENTAL INDENTURE AND THE GUARANTEES HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

8.Counterparts. This Tenth Supplemental Indenture may be executed in any number of counterparts, each of which shall be deemed an original; but all such counterparts shall together constitute but one and the same instrument.

9.Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

10.Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Tenth Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Additional Guarantors and the Company.

IN WITNESS WHEREOF, the parties hereto have caused this Tenth Supplemental Indenture to be duly executed, all as of the day and year first above written.

EXPRESS SCRIPTS HOLDING COMPANY

By:    /s/ Keith J. Ebling         Name: Keith J. Ebling
Title: Executive Vice President and General Counsel

ADDITIONAL GUARANTORS

UNITED BIOSOURCE HOLDINGS, INC.

By:     /s/ Keith J. Ebling        
    Name:    Keith J. Ebling
    Title:    President

EXPRESS SCRIPTS PHARMACY, INC.

By:     /s/ Martin P. Akins        
    Name:    Martin P. Akins
    Title:    Secretary

[Signature Page to Express Scripts Holding Company Tenth Supplemental Indenture]

95789.10-TORSR01A        

WELLS FARGO BANK, NATIONAL ASSOCIATION, AS TRUSTEE
By
	/s/ Richard H. Prokosch
	Name: Richard H. Prokosch
	Title: Vice President

[Signature Page to Express Scripts Holding Company Tenth Supplemental Indenture]

95789.10-TORSR01A        

EX-12.1

EXHIBIT 12.1

EXPRESS SCRIPTS HOLDING COMPANY

Calculation of Ratio of Earnings to Fixed Charges

(Dollar amounts in millions)

	Year Ended December 31,
	2013			2012			2011			2010		2009
Income from continuing operations before income taxes(1)	$	3,012.0		$	2,188.5		$	2,027.1		$	1,908.7	$	1,308.4
Add:
Interest expense	596.1			619.0			299.7			167.1		194.4
Estimated interest component of rental expense	28.4			34.5			10.1			13.4		9.3
Subtract:
Income attributable to non-controlling interest	(28.1		)	(17.2		)	(2.7		)	—		—
Income as adjusted	$	3,608.4		$	2,824.8		$	2,334.2		$	2,089.2	$	1,512.1
Fixed charges:
Interest expense	596.1			619.0			299.7			167.1		194.4
Estimated interest component of rental expense	28.4			34.5			10.1			13.4		9.3
Total fixed charges	$	624.5		$	653.5		$	309.8		$	180.5	$	203.7
Ratio of Earnings to Fixed Charges	5.8			4.3			7.5			11.6		7.4

(1) Consists of income from continuing operations before income taxes adjusted to include distributed equity income from joint venture.

Note: Interest component of rental expense estimated to be 1/3 of rental expense, which management believes represents a reasonable approximation of the interest factor.

EX-21.1

EXHIBIT 21.1

The following are subsidiaries of the Company as of December 31, 2013. The names of other subsidiaries have been omitted as they would not, if considered in the aggregate as a single subsidiary, constitute a significant subsidiary pursuant to Item 601(b)(21)(ii) of Regulation S-K under the Securities Exchange Act of 1934, as amended.

Subsidiary	State of Organization	D/B/A
Accredo Care Network, Inc.	Delaware	None
Accredo Health Group, Inc.	Delaware	None
Accredo Health, Incorporated	Delaware	None
AHG of New York, Inc.	New York	None
BioPartners In Care, Inc.	Missouri	None
CFI New Jersey, Inc.	New Jersey	None
CuraScript, Inc.	Delaware	CuraScript SP Specialty Pharmacy
Diversified Pharmaceutical Services, Inc.	Minnesota	None
ESI Canada	Ontario, Canada	None
ESI Mail Order Processing, Inc.	Delaware	None
ESI Mail Pharmacy Service, Inc.	Delaware	None
ESI Partnership	Delaware	None
ESI Resources, Inc.	Minnesota	None
ESI-GP Holdings, Inc.	Delaware	None
Express Scripts Administrators, LLC (formerly Medco Health, L.L.C.)	Delaware	None
Express Scripts Canada Co.	Nova Scotia, Canada	None
Express Scripts Canada Holding, Co.	Delaware	None
Express Scripts Insurance Company	Arizona	None
Express Scripts Pharmaceutical Procurement, LLC	Delaware	None
Express Scripts Pharmacy, Inc.	Delaware	None
Express Scripts Services Company	Delaware	None
Express Scripts Specialty Distribution Services, Inc.	Delaware	None
Express Scripts Utilization Management Co.	Delaware	None
Express Scripts WC, Inc.	Florida	None
Express Scripts, Inc.	Delaware	None
Home Healthcare Resources, Inc.	Pennsylvania	None
Lynnfield Drug, Inc.	Florida	Freedom Fertility Pharmacy
MAH Pharmacy, LLC	Delaware	None
Matrix GPO, LLC	Indiana	None
Medco [Shellco] Limited	England & Wales	None
Medco CDUR, LLC	Delaware	None
Medco CHP, LLC	Delaware	None
Medco Containment Insurance Company of New York	New York	None
Medco Containment Life Insurance Company	Pennsylvania	None
Medco Continuation Health, LLC	Delaware	None
Medco Europe II, LLC	Delaware	None
Medco Europe, LLC	Delaware	None
Medco Health New York Independent Practice Association, LLC	New York	None
Medco Health Puerto Rico, LLC	Delaware	None

Subsidiary	State of Organization	D/B/A
Medco Health Receivables, LLC	Delaware	None
Medco Health Services, Inc.	Delaware	None
Medco Health Solutions [Ireland] Ltd.	Ireland	None
Medco Health Solutions Ltd.	England & Wales	None
Medco Health Solutions of Illinois, LLC	Delaware	None
Medco Health Solutions Services Ltd.	England & Wales	None
Medco Health Solutions, Inc.	Delaware	None
Medco International B.V.	Netherlands	None
Medco International Holdings B.V.	Netherlands	None
Medco of Willingboro Urban Renewal, LLC	New Jersey	None
Medco Research Institute, LLC	Delaware	None
medcohealth.com, LLC	New Jersey	None
MHS Holdings, C.V.	Netherlands	None
MWD Insurance Company	New York	None
National Prescription Administrators, Inc.	New Jersey	NPA
National Rx Services No. 3, Inc. of Ohio	Ohio	None
Priority Healthcare Corporation	Indiana	None
Priority Healthcare Corporation West	Nevada	None
Priority Healthcare Distribution, Inc.	Florida	CuraScript SD Specialty Distribution
Systemed, LLC	Delaware	None
TherapEase Cuisine, Inc.	Wisconsin	None
UBC Late Stage (UK) Limited	England & Wales	None
UBC Late Stage, Inc.	Missouri	None
United BioSource (Germany) GmbH	Germany	None
United BioSource (HCA Canada) Company	Canada	None
United BioSource (Suisse) SA	Switzerland	None
United BioSource LLC	Delaware	None
United BioSource Corporation, S.L.	Spain	None
United BioSource Holding (Canada) Company	Canada	None
United BioSource Holdings, Inc.	Delaware	None
United BioSource Holding (UK) Limited	England & Wales	None
United BioSource Patient Solutions, Inc.	Delaware	None

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-180507) of Express Scripts Holding Company of our report dated February 20, 2014 relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

St. Louis, Missouri

February 20, 2014

EX-31.1

Exhibit 31.1

I, George Paz, certify that:

1. I have reviewed this annual report on Form 10-K of Express Scripts Holding Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 20, 2014

/s/George Paz

George Paz, Chairman and

Chief Executive Officer

EX-31.2

Exhibit 31.2

I, Cathy R. Smith, certify that:

1. I have reviewed this annual report on Form 10-K of Express Scripts Holding Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 20, 2014

/s/Cathy R. Smith

Cathy R. Smith, Executive Vice President and

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AND RULE 13a-14(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

In connection with the accompanying Annual Report on Form 10-K (the “Report”) of Express Scripts Holding Company (the “Company”) for the period ended December 31, 2013, I, George Paz, Chairman and Chief Executive Officer of the Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, and Exchange Act Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

BY:	/s/ George Paz
	George Paz Chairman and Chief Executive Officer Express Scripts Holding Company

Date: February 20, 2014

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AND RULE 13a-14(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

In connection with the accompanying Annual Report on Form 10-K (the “Report”) of Express Scripts Holding Company (the “Company”) for the period ended December 31, 2013, I, Cathy R. Smith, Executive Vice President and Chief Financial Officer of the Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, and Exchange Act Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

BY:	/s/ Cathy R. Smith
	Cathy R. Smith Executive Vice President and Chief Financial Officer Express Scripts Holding Company

Date: February 20, 2014

XML

Quarterly financial data (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data [Abstract]

Components of Quarterly Financial Data

The following is a presentation of our unaudited quarterly financial data:

	Quarters
(in millions, except per share data)	First			Second			Third			Fourth
Fiscal 2013(1)
Total revenues(2)	$	26,019.9		$	26,381.9		$	25,915.6		$	25,781.4
Cost of revenues(2)	24,057.8			24,266.8			23,921.4			23,720.4
Gross profit	1,962.1			2,115.1			1,994.2			2,061.0
Selling, general and administrative	1,119.0			1,110.8			1,118.7			1,232.2
Operating income	843.1			1,004.3			875.5			828.8
Net income from continuing operations	380.0			574.4			453.6			518.3
Net loss from discontinued operations, net of tax	(1.9		)	(23.9		)	(15.5		)	(12.3		)
Net income	$	378.1		$	550.5		$	438.1		$	506.0
Less: Net income attributable to non-controlling interest	5.1			7.5			11.4			4.1
Net income attributable to Express Scripts	373.0			543.0			426.7			501.9
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts	$	0.46		$	0.70		$	0.55		$	0.65
Discontinued operations attributable to Express Scripts	—			(0.03		)	(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.46			0.67			0.53			0.63
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts	$	0.45		$	0.68		$	0.54		$	0.64
Discontinued operations attributable to Express Scripts	—			(0.03		)	(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.45			0.66			0.52			0.63
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	374.9		$	566.9		$	442.2		$	514.2
Discontinued operations, net of tax	(1.9		)	(23.9		)	(15.5		)	(12.3		)
Net income attributable to Express Scripts shareholders	$	373.0		$	543.0		$	426.7		$	501.9

	Quarters
(in millions, except per share data)	First		Second(3)		Third			Fourth
Fiscal 2012(1)
Total revenues(2)	$	12,132.6	$	27,455.0	$	26,761.6		$	27,365.1
Cost of revenues(2)	11,300.6		25,375.7		24,658.7			25,067.4
Gross profit	832.0		2,079.3		2,102.9			2,297.7
Selling, general and administrative	265.1		1,579.9		1,282.2			1,390.8
Operating income	566.9		499.4		820.7			906.9
Net income from continuing operations	270.2		152.2		415.9			524.1
Net income (loss) from discontinued operations, net of tax	—		0.8		(20.0		)	(13.1		)
Net income	$	270.2	$	153.0	$	395.9		$	511.0
Less: Net income attributable to non-controlling interest	2.4		3.4		4.5			6.9
Net income attributable to Express Scripts	267.8		149.6		391.4			504.1
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts	$	0.55	$	0.18	$	0.51		$	0.63
Discontinued operations attributable to Express Scripts	—		—		(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.55		0.19		0.48			0.62
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts	$	0.55	$	0.18	$	0.50		$	0.62
Discontinued operations attributable to Express Scripts	—		—		(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.55		0.18		0.47			0.61
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	267.8	$	148.8	$	411.4		$	517.2
Discontinued operations, net of tax	—		0.8		(20.0		)	(13.1		)
Net income attributable to Express Scripts shareholders	$	267.8	$	149.6	$	391.4		$	504.1

(1) Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

(2) Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

(3) Includes the April 2, 2012 acquisition of Medco.

XML

Dispositions - Major Components of Assets and Liabilities of Discontinued Operations (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]
Current assets	$ 31.0	$ 271.4
Goodwill	0	127.9
Other intangible assets, net	0	157.4
Other assets	0	22.5
Total assets	31.0	579.2
Current liabilities	1.3	150.7
Deferred Taxes	0	44.9
Other liabilities	0.1	3.7
Total liabilities	1.4	199.3
Revenues	521.2	702.3
Operating loss	(24.9)	(22.7)
Income tax expense from discontinued operations	(28.7)	(7.5)
Net loss from discontinued operations, net of tax	$ (53.6)	$ (32.3)

XML

Changes in business - Summary of Purchase Price (Parenthetical) (Detail) (USD $)	0 Months Ended
	Apr. 02, 2012
Subsidiary Company [Member]
Business Acquisition [Line Items]
Cash paid per share for shareholders	$ 28.80
Stock paid per share ratio for shareholders	0.81
Express Scripts Holding Company [Member]
Business Acquisition [Line Items]
Basis for determining value, Express Scripts opening share price	$ 56.49

XML

Income taxes - Provision (Benefit) for Income Taxes for Continuing Operations (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income before income taxes	$ 3,030.3	$ 2,200.4	$ 2,027.1
Current provision:
Federal	1,483.4	1,009.5	565.2
State	192.3	216.8	42.5
Foreign	2.0	0.7	3.1
Total current provision	1,677.7	1,227.0	610.8
Deferred provision:
Federal	(520.0)	(358.5)	125.3
State	(45.3)	(29.8)	12.4
Foreign	(8.4)	(0.7)	0.1
Total deferred provision (benefit)	(573.7)	(389.0)	137.8
Total current and deferred provision	1,104.0	838.0	748.6
United States [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income before income taxes	2,987.6	2,185.8	2,029.4
Foreign [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income before income taxes	$ 42.7	$ 14.6	$ (2.3)

XML

Property and equipment - Property and Equipment, at Cost (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment	$ 2,750.6		$ 2,325.9
Less accumulated depreciation	(1,091.7)	[1]	(693.8)
Property and equipment, net	1,658.9		1,632.1
Land And buildings [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	215.8		216.4
Furniture [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	71.6		66.6
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	707.5	[1]	542.5
Capital lease assets	58.1
Capital lease accumulated depreciation	5.5
Computer software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	1,582.3		1,321.3
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 173.4		$ 179.1

[1] Includes gross assets of $58.1 million and accumulated depreciation of $5.5 million related to capital lease assets as of December 31, 2013.

XML

Employee benefit plans and stock-based compensation plans - Stock-Based Compensation Plans In General - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 02, 2012 Employee Stock Option [Member] Subsidiary Company [Member]	Apr. 02, 2012 Restricted Stock Units (RSUs) [Member] Subsidiary Company [Member]	Dec. 31, 2013 2011 LTIP [Member]	Dec. 31, 2013 2000 LTIP [Member]	Dec. 31, 2013 2002 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares available for grant (shares)						30,000,000
Common stock reserved for employee benefit plans						22,600,000		13,500,000
Maximum term of stock options, SSRs, restricted stock and performance shares granted						10 years	10 years
Tax benefit related to employee stock compensation (value)	$ 60.0	$ 153.9	$ 17.7
Number of stock options and restricted shares issued to Medco holders				41,500,000	7,200,000
Value of stock options and restricted shares issued to Medco holders				$ 706.1	$ 174.9

XML

Condensed consolidating financial information - Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 1,991.4	$ 2,793.1		$ 5,620.1	$ 523.7
Restricted cash and investments	22.8	19.6
Receivables, net	4,022.9	5,425.8
Other current assets	2,423.3	2,247.0
Current assets of discontinued operations	31.0	271.4
Total current assets	8,491.4	10,756.9
Property and equipment, net	1,658.9	1,632.1
Investments in subsidiaries	0	0
Intercompany	0	0
Goodwill	29,305.4	29,320.4	[1]	5,485.7
Other intangible assets, net	14,015.6	16,037.9
Other assets	76.9	56.1
Noncurrent assets of discontinued operations	0	307.8
Total assets	53,548.2	58,111.2
Claims and rebates payable	6,767.8	7,440.0
Accounts payable	2,900.0	2,898.9
Accrued expenses	1,982.2	1,632.9
Current maturities of long-term debt	1,584.0	934.9
Current liabilities of discontinued operations	1.3	150.7
Total current liabilities	13,235.3	13,057.4
Long-term debt	12,363.0	14,980.1
Intercompany	0	0
Deferred taxes	5,440.6	5,936.5
Other liabilities	664.4	692.9
Noncurrent liabilities of discontinued operations	0.1	48.6
Non-controlling interest	7.4	10.7
Express Scripts stockholders’ equity	21,837.4	23,385.0
Total liabilities and stockholders’ equity	53,548.2	58,111.2
Express Scripts Holding Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0		0	0
Restricted cash and investments	0	0
Receivables, net	0	0
Other current assets	0	0
Current assets of discontinued operations	0	0
Total current assets	0	0
Property and equipment, net	0	0
Investments in subsidiaries	36,060.9	31,375.6
Intercompany	0	2,189.0
Goodwill	0	0
Other intangible assets, net	51.7	67.1
Other assets	0	0
Noncurrent assets of discontinued operations		0
Total assets	36,112.6	33,631.7
Claims and rebates payable	0	0
Accounts payable	0	0
Accrued expenses	45.3	62.9
Current maturities of long-term debt	1,583.9	631.6
Current liabilities of discontinued operations	0	0
Total current liabilities	1,629.2	694.5
Long-term debt	7,975.9	9,552.2
Intercompany	4,670.1	0
Deferred taxes	0	0
Other liabilities	0	0
Noncurrent liabilities of discontinued operations	0	0
Non-controlling interest	0	0
Express Scripts stockholders’ equity	21,837.4	23,385.0
Total liabilities and stockholders’ equity	36,112.6	33,631.7
Express Scripts, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	1,145.9	2,346.6		5,522.2	456.7
Restricted cash and investments	0	0
Receivables, net	1,381.3	1,097.8
Other current assets	99.8	119.2
Current assets of discontinued operations	0	0
Total current assets	2,627.0	3,563.6
Property and equipment, net	550.3	305.7
Investments in subsidiaries	9,096.2	8,292.7
Intercompany	0	0
Goodwill	2,921.4	2,921.4
Other intangible assets, net	1,071.7	1,192.4
Other assets	79.9	57.4
Noncurrent assets of discontinued operations		0
Total assets	16,346.5	16,333.2
Claims and rebates payable	3,866.2	2,554.1
Accounts payable	875.1	477.5
Accrued expenses	455.9	428.3
Current maturities of long-term debt	0.1	0.1
Current liabilities of discontinued operations	0	0
Total current liabilities	5,197.3	3,460.0
Long-term debt	1,994.9	2,992.1
Intercompany	6,328.1	8,764.5
Deferred taxes	0	0
Other liabilities	199.1	158.7
Noncurrent liabilities of discontinued operations	0	0
Non-controlling interest	0	0
Express Scripts stockholders’ equity	2,627.1	957.9
Total liabilities and stockholders’ equity	16,346.5	16,333.2
Medco Health Solutions, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	3.6	0		0	0
Restricted cash and investments	1.0	0
Receivables, net	750.5	2,330.0
Other current assets	286.4	306.6
Current assets of discontinued operations	0	0
Total current assets	1,041.5	2,636.6
Property and equipment, net	5.4	0
Investments in subsidiaries	12,089.8	5,121.0
Intercompany	0	926.8
Goodwill	22,608.1	22,621.5
Other intangible assets, net	10,946.8	12,609.4
Other assets	16.5	14.4
Noncurrent assets of discontinued operations		0
Total assets	46,708.1	43,929.7
Claims and rebates payable	2,901.6	4,885.9
Accounts payable	62.7	0
Accrued expenses	241.0	327.8
Current maturities of long-term debt	0	303.2
Current liabilities of discontinued operations	0	0
Total current liabilities	3,205.3	5,516.9
Long-term debt	2,392.2	2,435.8
Intercompany	3,222.2	0
Deferred taxes	4,034.7	5,074.7
Other liabilities	419.9	484.6
Noncurrent liabilities of discontinued operations	0	0
Non-controlling interest	0	0
Express Scripts stockholders’ equity	33,433.8	30,417.7
Total liabilities and stockholders’ equity	46,708.1	43,929.7
Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	44.0	126.9		5.4	9.0
Restricted cash and investments	0	1.0
Receivables, net	1,557.1	1,493.0
Other current assets	2,010.4	1,800.4
Current assets of discontinued operations	0	0
Total current assets	3,611.5	3,421.3
Property and equipment, net	1,082.7	1,307.2
Investments in subsidiaries	0	0
Intercompany	14,247.9	6,127.2
Goodwill	3,750.3	3,750.3
Other intangible assets, net	1,926.0	2,153.6
Other assets	3.9	5.9
Noncurrent assets of discontinued operations		0
Total assets	24,622.3	16,765.5
Claims and rebates payable	0	0
Accounts payable	1,834.9	2,284.5
Accrued expenses	615.5	612.0
Current maturities of long-term debt	0	0
Current liabilities of discontinued operations	0	0
Total current liabilities	2,450.4	2,896.5
Long-term debt	0	0
Intercompany	0	0
Deferred taxes	1,386.4	861.8
Other liabilities	79.0	73.1
Noncurrent liabilities of discontinued operations	0	0
Non-controlling interest	0	0
Express Scripts stockholders’ equity	20,706.5	12,934.1
Total liabilities and stockholders’ equity	24,622.3	16,765.5
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	797.9	319.6		92.5	58.0
Restricted cash and investments	21.8	18.6
Receivables, net	334.0	505.0
Other current assets	26.7	20.8
Current assets of discontinued operations	31.0	271.4
Total current assets	1,211.4	1,135.4
Property and equipment, net	20.5	19.2
Investments in subsidiaries	0	0
Intercompany	0	0
Goodwill	25.6	27.2
Other intangible assets, net	19.4	15.4
Other assets	12.2	4.7
Noncurrent assets of discontinued operations		307.8
Total assets	1,289.1	1,509.7
Claims and rebates payable	0	0
Accounts payable	127.3	136.9
Accrued expenses	624.5	201.9
Current maturities of long-term debt	0	0
Current liabilities of discontinued operations	1.3	150.7
Total current liabilities	753.1	489.5
Long-term debt	0	0
Intercompany	27.5	478.5
Deferred taxes	19.5	0
Other liabilities	2.0	2.8
Noncurrent liabilities of discontinued operations	0.1	48.6
Non-controlling interest	7.4	10.7
Express Scripts stockholders’ equity	479.5	479.6
Total liabilities and stockholders’ equity	1,289.1	1,509.7
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0		0	0
Restricted cash and investments	0	0
Receivables, net	0	0
Other current assets	0	0
Current assets of discontinued operations	0	0
Total current assets	0	0
Property and equipment, net	0	0
Investments in subsidiaries	(57,246.9)	(44,789.3)
Intercompany	(14,247.9)	(9,243.0)
Goodwill	0	0
Other intangible assets, net	0	0
Other assets	(35.6)	(26.3)
Noncurrent assets of discontinued operations		0
Total assets	(71,530.4)	(54,058.6)
Claims and rebates payable	0	0
Accounts payable	0	0
Accrued expenses	0	0
Current maturities of long-term debt	0	0
Current liabilities of discontinued operations	0	0
Total current liabilities	0	0
Long-term debt	0	0
Intercompany	(14,247.9)	(9,243.0)
Deferred taxes	0	0
Other liabilities	(35.6)	(26.3)
Noncurrent liabilities of discontinued operations	0	0
Non-controlling interest	0	0
Express Scripts stockholders’ equity	(57,246.9)	(44,789.3)
Total liabilities and stockholders’ equity	$ (71,530.4)	$ (54,058.6)

[1] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

XML

Changes in business - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended										0 Months Ended	9 Months Ended	0 Months Ended			12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011		Apr. 02, 2012	Dec. 31, 2013 Express Scripts Holding Company [Member]	Dec. 31, 2013 Express Scripts Inc [Member]	Apr. 02, 2012 Express Scripts Inc [Member]	Apr. 02, 2012 Subsidiary Company [Member]	Dec. 31, 2012 Subsidiary Company [Member]	Apr. 02, 2012 Medco [Member]	Dec. 31, 2013 Medco [Member]	Apr. 02, 2012 Client Accounts Receivables [Member] Subsidiary Company [Member]	Dec. 31, 2013 Customer Contracts [Member] Subsidiary Company [Member]	Apr. 02, 2012 Customer Contracts [Member] Subsidiary Company [Member]	Dec. 31, 2013 Trade Names [Member] Subsidiary Company [Member]	Apr. 02, 2012 Trade Names [Member] Subsidiary Company [Member]	Dec. 31, 2013 Miscellaneous Intangible Assets [Member] Subsidiary Company [Member]	Apr. 02, 2012 Miscellaneous Intangible Assets [Member] Subsidiary Company [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent																							100.00%
Percentage of voting rights company owned																										59.00%	41.00%
Cash paid per share for shareholders																											$ 28.80
Stock paid per share ratio for shareholders																											0.81
Replacement awards exchange ratio																													1.3474
Average Consecutive 15 Day Closing Price																													15 years
Total revenues	$ 25,781.4	[1],[2]	$ 25,915.6	[1],[2]	$ 26,381.9	[1],[2]	$ 26,019.9	[1],[2]	$ 27,365.1	[1],[2]	$ 26,761.6	[1],[2]	$ 27,455.0	[1],[2],[3]	$ 12,132.6	[1],[2],[3]	$ 104,098.8	[4]	$ 93,714.3	[4]	$ 46,128.3	[4]						$ 45,763.5
Net income attributable to Express Scripts shareholders	501.9	[2]	426.7	[2]	543.0	[2]	373.0	[2]	504.1	[2]	391.4	[2]	149.6	[2],[3]	267.8	[2],[3]	1,844.6		1,312.9		1,275.8							290.7
Non-recurring pro forma adjustment																					1,192.2
Acquired intangible assets																											16,216.7						15,935.0		273.0		8.7
Estimated useful life of allocated intangible assets																																16 years		10 years		5 years
Goodwill	29,305.4								29,320.4	[5]							29,305.4		29,320.4	[5]	5,485.7						23,965.6
Accounts receivable balances, acquired and estimated as uncollectible																															43.6
Equity income from joint venture																	32.8		14.9		0
Equity Method Investment, Ownership Percentage																								33.333%	16.667%					16.667%
Investment in SureScripts	$ 30.2								$ 11.9								$ 30.2		$ 11.9

[1] Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

[2] Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

[3] Includes the April 2, 2012 acquisition of Medco.

[4] Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

[5] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

XML

Income taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Provision (Benefit) for Income Taxes for Continuing Operations

The provision (benefit) for income taxes for continuing operations consists of the following:

	Year Ended December 31,
(in millions)	2013			2012			2011
Income from continuing operations before income taxes:
United States	$	2,987.6		$	2,185.8		$	2,029.4
Foreign	42.7			14.6			(2.3		)
Total	$	3,030.3		$	2,200.4		$	2,027.1
Current provision:
Federal	$	1,483.4		$	1,009.5		$	565.2
State	192.3			216.8			42.5
Foreign	2.0			0.7			3.1
Total current provision	1,677.7			1,227.0			610.8
Deferred provision:
Federal	(520.0		)	(358.5		)	125.3
State	(45.3		)	(29.8		)	12.4
Foreign	(8.4		)	(0.7		)	0.1
Total deferred provision (benefit)	(573.7		)	(389.0		)	137.8
Total current and deferred provision	$	1,104.0		$	838.0		$	748.6

Reconciliation of Statutory Federal Income Tax Rate and Effective Tax Rate

A reconciliation of the statutory federal income tax rate and the effective tax rate follows (the effect of foreign taxes on the effective tax rate for 2013, 2012, and 2011 is immaterial):

	Year Ended December 31,
	2013		2012		2011
Statutory federal income tax rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal benefit	2.6		5.1		2.0
Non-controlling interest	(0.3	)	(0.3	)	—
Investment in foreign subsidiaries	(0.7	)	(3.0	)	—
Other, net	(0.2	)	1.3		—
Effective tax rate	36.4	%	38.1	%	37.0	%

Schedule of Deferred Tax Assets and Deferred Tax Liabilities

Our income tax provision from discontinued operations was $28.7 million, and $7.5 million for 2013 and 2012, respectively.

The deferred tax assets and deferred tax liabilities recorded in our consolidated balance sheet are as follows:

	December 31,
(in millions)	2013			2012
Deferred tax assets:
Allowance for doubtful accounts	$	70.9		$	61.6
Note premium	81.6			101.7
Tax attributes	85.9			62.7
Deferred compensation	6.4			12.2
Equity compensation	268.7			359.5
Accrued expenses	406.0			329.9
Federal benefit of uncertain tax positions	181.8			164.9
Investment in foreign subsidiaries	—			15.6
Other	16.4			19.0
Gross deferred tax assets	1,117.7			1,127.1
Less valuation allowance	(66.9		)	(34.7		)
Net deferred tax assets	1,050.8			1,092.4
Deferred tax liabilities:
Depreciation and property differences	(434.3		)	(444.6		)
Goodwill and intangible assets	(5,585.9		)	(6,164.7		)
Prepaids	(4.0		)	(7.7		)
Other	(11.8		)	(11.3		)
Gross deferred tax liabilities	(6,036.0		)	(6,628.3		)
Net deferred tax liabilities	$	(4,985.2	)	$	(5,535.9	)

Unrecognized Tax Benefits Roll-Forward

A reconciliation of our beginning and ending amount of unrecognized tax benefits is as follows:

(in millions)	2013			2012			2011
Balance at January 1	$	500.8		$	32.4		$	57.3
Additions for tax positions related to prior years(1)(2)	637.3			392.7			7.3
Reductions for tax positions related to prior years(1)	(92.0		)	(1.3		)	(30.3		)
Additions for tax positions related to the current year	41.7			83.7			4.9
Reductions attributable to settlements with taxing authorities	(3.5		)	—			(5.1		)
Reductions as a result of a lapse of the applicable statute of limitations	(22.8		)	(6.7		)	(1.7		)
Balance at December 31	$	1,061.5		$	500.8		$	32.4

(1) Includes $50.4 million additions and $8.3 million reductions of Medco income tax contingencies recorded through the allocation of Medco’s purchase price for the quarter ended March 31, 2013.

(2) Includes $544.9 million in additions related to a claimed loss in 2012 on the disposition of Liberty.

XML

Employee benefit plans and stock-based compensation plans - Restricted Stock And Performance Shares - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Rate	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock [Member] | Merger Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	2 years
Restricted units awarded (shares)			0.5
Restricted Stock And Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum multiplier used to calculate value of performance shares	2.5
Unearned compensation	$ 52.5	$ 99.4
Pre-tax compensation expense	87.4	190.0	13.9
Fair value of restricted shares vested	$ 136.7	$ 213.8	$ 20.9
Weighted average remaining recognition period for restricted stock and performance shares	1 year 1 month 0 days
Restricted Stock And Performance Shares [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock And Performance Shares [Member] | 2011 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock And Performance Shares [Member] | 2002 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years

XML

Income taxes - Unrecognized Tax Benefits Roll-Forward (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	$ 500.8		$ 32.4		$ 57.3
Additions for tax positions related to prior years	637.3	[1],[2]	392.7	[1],[2]	7.3	[1],[2]
Reductions for tax positions related to prior years	(92.0)	[1]	(1.3)	[1]	(30.3)	[1]
Additions for tax positions related to the current year	41.7		83.7		4.9
Reductions attributable to settlements with taxing authorities	(3.5)		0		(5.1)
Reductions as a result of a lapse of the applicable statute of limitations	(22.8)		(6.7)		(1.7)
Ending Balance	$ 1,061.5		$ 500.8		$ 32.4

[1] Includes $50.4 million additions and $8.3 million reductions of Medco income tax contingencies recorded through the allocation of Medco’s purchase price for the quarter ended March 31, 2013.

[2] Includes $544.9 million in additions related to a claimed loss in 2012 on the disposition of Liberty.

XML

Pension and other postretirement benefits - Weighted Average Assumptions Used in Determining Plan Information (Detail) (Other Postretirement Benefits [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Other Postretirement Benefits [Member]
Weighted-average assumptions used to determine benefit obligations at fiscal year-end:
Discount rate	3.39%	2.48%
Weighted-average assumptions used to determine net cost for the fiscal year ended:
Discount rate	2.52%	3.30%

XML

Goodwill and other intangible assets - Summary of Goodwill and Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Goodwill [Line Items]
Goodwill, Gross Carrying Amount	$ 29,412.8		$ 29,427.8	[1]
Goodwill, Accumulated Amortization	(107.4)		(107.4)	[1]
Goodwill, Net Carrying Amount	29,305.4		29,320.4	[1]	5,485.7
Other intangible assets, Gross Carrying Amount	18,103.6		18,194.1	[1]
Other intangible assets, Accumulated amortization	(4,088.0)		(2,156.2)	[1]
Other intangible assets, Net Carrying Amount	14,015.6		16,037.9	[1]
Pbm [Member]
Goodwill [Line Items]
Goodwill, Gross Carrying Amount	29,315.4	[2]	29,330.4	[1],[2]
Goodwill, Accumulated Amortization	(107.4)	[2]	(107.4)	[1],[2]
Goodwill, Net Carrying Amount	29,208.0	[2]	29,223.0	[1],[2]	5,405.2
Other intangible assets, Gross Carrying Amount	17,940.5		18,020.9	[1]
Other intangible assets, Accumulated amortization	(4,012.6)		(2,089.9)	[1]
Other intangible assets, Net Carrying Amount	13,927.9		15,931.0	[1]
Pbm [Member] | Customer Contracts [Member]
Goodwill [Line Items]
Other intangible assets, Gross Carrying Amount	17,602.3	[3]	17,672.7	[1]
Other intangible assets, Accumulated amortization	(3,926.2)	[3]	(2,038.3)	[1]
Other intangible assets, Net Carrying Amount	13,676.1	[3]	15,634.4	[1]
Pbm [Member] | Trade Names [Member]
Goodwill [Line Items]
Other intangible assets, Gross Carrying Amount	226.6		226.6	[1]
Other intangible assets, Accumulated amortization	(39.0)		(16.7)	[1]
Other intangible assets, Net Carrying Amount	187.6		209.9	[1]
Pbm [Member] | Miscellaneous Intangible Assets [Member]
Goodwill [Line Items]
Other intangible assets, Gross Carrying Amount	111.6	[4]	121.6	[1],[4]
Other intangible assets, Accumulated amortization	(47.4)	[4]	(34.9)	[1],[4]
Other intangible assets, Net Carrying Amount	64.2	[4]	86.7	[1],[4]
Other Business Operations [Member]
Goodwill [Line Items]
Goodwill, Gross Carrying Amount	97.4		97.4	[1]
Goodwill, Accumulated Amortization	0		0	[1]
Goodwill, Net Carrying Amount	97.4		97.4	[1]	80.5
Other intangible assets, Gross Carrying Amount	163.1		173.2	[1]
Other intangible assets, Accumulated amortization	(75.4)		(66.3)	[1]
Other intangible assets, Net Carrying Amount	87.7		106.9	[1]
Other Business Operations [Member] | Trade Names [Member]
Goodwill [Line Items]
Other intangible assets, Gross Carrying Amount	35.8		34.7	[1]
Other intangible assets, Accumulated amortization	(6.2)		(3.1)	[1]
Other intangible assets, Net Carrying Amount	29.6		31.6	[1]
Other Business Operations [Member] | Customer Relationships [Member]
Goodwill [Line Items]
Other intangible assets, Gross Carrying Amount	127.3	[5]	138.5	[1],[5]
Other intangible assets, Accumulated amortization	(69.2)	[5]	(63.2)	[1],[5]
Other intangible assets, Net Carrying Amount	$ 58.1	[5]	$ 75.3	[1],[5]

[1] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

[2] PBM goodwill associated with the Merger has been reduced by $12.7 million due to finalization of the purchase price allocation during the first quarter of 2013.

[3] Changes in gross PBM customer contracts and related accumulated amortization reflect a decrease of $84.4 million related to the write-off of fully depreciated assets.

[4] Changes in gross miscellaneous intangible assets and related accumulated amortization reflect a decrease of $10.0 million following the write-off of deferred financing fees related to the early repayment and the redemption of senior notes. See Note 7 - Financing for additional information.

[5] Changes in gross customer relationships and related accumulated amortization reflect a decrease of $11.2 million. These balances reflect amounts written off and have no net impact on the net other intangible assets balance.

XML

Employee benefit plans and stock-based compensation plans - Retirement Savings Plans - Additional Information (Detail) (Retirement Savings Plan [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contribution expense	$ 79.9	$ 67.6	$ 25.7
ESI 401 (K) Plan [Member] | First 1% [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Matching contribution	200.00%
Percent of employers contribution	1.00%
ESI 401 (K) Plan [Member] | Next 3% [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Matching contribution	100.00%
Percent of employers contribution	3.00%
ESI 401 (K) Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual contribution percentage	25.00%
Medco 401 (K) Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of employers contribution	6.00%
Medco 401 (K) Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual contribution percentage	50.00%
Express Scripts 401 (K) Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of employers contribution	6.00%
Requisite period	1 year
Express Scripts 401 (K) Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual contribution percentage	50.00%

XML

Pension and other post-retirement benefits - Net Pension and Postretirement Benefit Cost (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 0.5	$ 0.3
Actual return on plan assets	15.3	7.0
Net actuarial (gain)/loss	(0.4)	0.1
Net (benefit)/cost	(15.2)	(6.6)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0.1	0.1
Actual return on plan assets	0	0
Net actuarial (gain)/loss	(0.2)	0.1
Net (benefit)/cost	$ (0.1)	$ 0.2

XML

Employee benefit plans and stock-based compensation plans - Stock Options And SSRs - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended							3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 SSRS And Stock Options [Member]	Dec. 31, 2012 SSRS And Stock Options [Member]	Dec. 31, 2011 SSRS And Stock Options [Member]	Dec. 31, 2013 2002 Stock Incentive Plan [Member]	Dec. 31, 2011 Merger SSRs and Stock Options [Domain] SSRS And Stock Options [Member]	Dec. 31, 2013 Merger SSRs and Stock Options [Domain] SSRS And Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years			3 years			3 years		2 years
Awards granted (shares)								1.0
Unearned compensation				$ 43.8	$ 74.4
Pre-tax compensation expense				77.3	220.0	34.6
Weighted average remaining recognition period for stock options and SSRs shares				1 year 4 months 0 days
Windfall tax benefit related to stock options exercised	$ 42.7	$ 45.3	$ 28.3

XML

Pension and other postretirement benefits - Changes in Plan Assets, Benefit Obligation and Funded Status (Detail) (USD $) In Millions, unless otherwise specified		12 Months Ended
	Apr. 02, 2012	Dec. 31, 2013 Pension Benefits [Member]	Dec. 31, 2012 Pension Benefits [Member]	Dec. 31, 2013 Other Postretirement Benefits [Member]	Dec. 31, 2012 Other Postretirement Benefits [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 217.0	$ 207.5	$ 0	$ 0	$ 0
Fair value of plan assets assumed in the Merger		0	217.0	0	0
Actual return on plan assets		15.3	7.0	0	0
Company contributions		0	6.1	0.4	0.5
Fair value of plan assets at end of year	217.0	179.4	207.5	0	0
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year	291.3	269.1	0	2.6	0
Benefit obligation assumed in the Merger		0	291.3	0	2.9
Interest cost		0.5	0.3	0.1	0.1
Actuarial (gain)/loss		(0.4)	0.1	(0.2)	0.1
Benefits paid		(43.4)	(22.6)	(0.4)	(0.5)
Projected benefit obligation at end of year	291.3	225.8	269.1	2.1	2.6
Underfunded status at end of year		$ 46.4	$ 61.6	$ 2.1	$ 2.6

XML

Employee benefit plans and stock-based compensation plans - Employee Stock Purchase and Deferred Compensations Plans - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual contribution percentage	10.00%
Percentage of purchase price equal to fair market value of common stock	95.00%
Common stock issued under the plan (shares)	289,000	229,000	200,000
Common stock reserved for employee benefit plans (shares)	1,900,000
Deferred Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for employee benefit plans (shares)	5,900,000
Percent of employers contribution	6.00%
Percentage of common stock portion in investment options	25.00%
Net compensation expense	$ 1.2	$ 1.0	$ 0.6
Unearned compensation	$ 0.3	$ 0.2
Deferred Compensation Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual contribution percentage	50.00%
Contribution percentage on specific bonus awards	100.00%

XML

Income taxes - Reconciliation of Statutory Federal Income Tax Rate and Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	2.60%	5.10%	2.00%
Non-controlling interest	(0.30%)	(0.30%)	0.00%
Investment in foreign subsidiaries	(0.70%)	(3.00%)	0.00%
Other, net	(0.20%)	1.30%	0.00%
Effective tax rate	36.40%	38.10%	37.00%

XML

Summary of significant accounting policies (Policies)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Organization and operations

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

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

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. 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

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. 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. 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.

Marketable securities

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

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. 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. 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

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

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

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

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

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. 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. 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

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

Employee stock-based compensation

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

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

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.

Foreign currency translation

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

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

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.

XML

Changes in business - Components of Preliminary Purchase Price Allocation (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011	Apr. 02, 2012 Subsidiary Company [Member]
Business Acquisition [Line Items]
Current assets					$ 6,934.9
Property and equipment					1,390.6
Goodwill	29,305.4	29,320.4	[1]	5,485.7	23,965.6
Acquired intangible assets					16,216.7
Other noncurrent assets					48.3
Current liabilities					(8,966.4)
Long-term debt					(3,008.3)
Deferred income taxes					(5,875.2)
Deferred income taxes					(551.8)
Total					$ 30,154.4

[1] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

XML

Summary of significant accounting policies - Reconciliation Between Weighted Average Shares Used in Basic and Diluted Earnings Per Share Calculation (Parenthetical) (Detail) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Issuance of shares in connection with the Merger			318.0
Shares issued in related to share-based payment awards (shares)		13.4	13.2
Repurchase of treasury shares (shares)	1.2	60.4
Anti-dilutive awards excluded from dilutive securities		3.5	5.9	3.3

XML

Common stock - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended				12 Months Ended				0 Months Ended	3 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended		12 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended		0 Months Ended		3 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011 right	Mar. 06, 2013	Dec. 31, 2013 Treasury Stock [Member]	Dec. 31, 2011 Treasury Stock [Member]	Dec. 31, 2013 Additional Paid-In Capital [Member]	Dec. 31, 2011 Additional Paid-In Capital [Member]	Apr. 27, 2012 Common Stock Under Accelerated Share Repurchase Agreement [Member]	Dec. 31, 2011 Common Stock Under Accelerated Share Repurchase Agreement [Member]	Sep. 30, 2011 Common Stock Under Accelerated Share Repurchase Agreement [Member]	Jun. 30, 2011 Common Stock Under Existing Stock Repurchase Program [Member]	Dec. 10, 2013 2013 ASR [Member]	Dec. 31, 2013 2013 ASR [Member]	Dec. 10, 2013 2013 ASR [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	Dec. 31, 2013 2013 ASR [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	Dec. 31, 2013 2013 ASR [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member] Treasury Stock [Member]	Dec. 31, 2013 2013 ASR [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member] Additional Paid-In Capital [Member]	May 27, 2011 2011 ASR [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member] agreement	Sep. 30, 2011 ASR Agreement 1 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	Dec. 31, 2012 ASR Agreement 1 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	May 27, 2011 ASR Agreement 1 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	Apr. 27, 2012 ASR Agreement 2 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	May 27, 2011 ASR Agreement 2 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	Dec. 31, 2011 ASR Agreement 2 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]	Dec. 31, 2013 ASR Agreement 2 [Member] Common Stock Under Accelerated Share Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Authorized amount under stock repurchase program																$ 1,500,000,000				$ 1,750,000,000
Number of common shares repurchased (shares)	1.2	60.4								33.5	2.1	1.9	13.0			20.1				29.4		4.0		0.1			0.1
Payments for repurchase of shares		3,905,300,000
Repurchased common stock price (usd per share)																$ 67.16				$ 59.53
Shares acquired as a percentage of total shares authorized														90.00%
Share not acquired as a percentage of total shares authorized under ASR															10.00%
Maximum settlement (shares)																	44.7
Current estimate of estimate (shares)																	2.3
Treasury stock acquired		4,055,200,000		2,515,700,000		3,905,300,000	2,515,700,000	149,900,000	0									1,350,100,000	149,900,000
Fair value of equity instrument																	0						0
Number of agreements																				2
Repurchase of common stock agreement	68,400,000	4,055,200,000	0	2,515,700,000									765,700,000								1,000,000,000				750,000,000	750,000,000
Weighted-average final forward price (usd per share)											$ 50.69										$ 53.51
Settled portion of total agreement																										$ 725,000,000
Shares repurchased (shares)					75.0
Remaining number of shares authorized to be repurchased (shares)		15.8
Right per share, dividend declared on preferred stock (right)				1

XML

Segment information - Segments Reporting Information, Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Intercompany assets	$ 53,548.2	$ 58,111.2
Investment in equity method investees	30.2	11.9
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Intercompany assets	31.0	579.2
Investment in equity method investees	0	0
Pbm [Member]
Segment Reporting Information [Line Items]
Intercompany assets	52,599.1	54,510.8
Investment in equity method investees	30.2	11.9
Other Business Operations [Member]
Segment Reporting Information [Line Items]
Intercompany assets	918.1	3,021.2
Investment in equity method investees	$ 0	$ 0

XML

Segment information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Reportable Segment Information

The following table presents information about our reportable segments, including a reconciliation of operating income from continuing operations to income before income taxes from continuing operations for the respective years ended December 31.

(in millions)	PBM		Other Business Operations			Total
2013
Product revenues:
Network revenues(1)	$	63,244.4	$	—		$	63,244.4
Home delivery and specialty revenues(2)	37,621.2		—			37,621.2
Other revenues	—		2,001.9			2,001.9
Service revenues	1,020.1		211.2			1,231.3
Total revenues	101,885.7		2,213.1			104,098.8
Depreciation and amortization expense	2,419.1		27.9			2,447.0
Operating income	3,502.0		49.7			3,551.7
Equity income from joint venture						32.8
Interest income						41.9
Interest expense and other						(596.1		)
Income before income taxes						3,030.3
Capital expenditures	411.2		11.8			423.0
2012
Product revenues:
Network revenues(1)	$	57,765.5	$	—		$	57,765.5
Home delivery and specialty revenues(2)	32,860.9		—			32,860.9
Other revenues	—		2,118.7			2,118.7
Service revenues	805.8		163.4			969.2
Total revenues	91,432.2		2,282.1			93,714.3
Depreciation and amortization expense	1,833.3		38.1			1,871.4
Operating income	2,815.1		(21.2		)	2,793.9
Equity income from joint venture						14.9
Interest income						10.6
Interest expense and other						(619.0		)
Income before income taxes						2,200.4
Capital expenditures	148.5		11.7			160.2
2011
Product revenues:
Network revenues(1)	$	30,007.3	$	—		$	30,007.3
Home delivery and specialty revenues(2)	14,547.4		—			14,547.4
Other revenues	—		1,279.3			1,279.3
Service revenues	273.0		21.3			294.3
Total revenues	44,827.7		1,300.6			46,128.3
Depreciation and amortization expense	245.2		8.2			253.4
Operating income	2,302.6		11.8			2,314.4
Interest income						12.4
Interest expense and other						(299.7		)
Income before income taxes						2,027.1
Capital expenditures	140.0		4.4			144.4

(1) Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

(2) Includes home delivery, specialty and other including: (a) drugs distributed through patient assistance programs and (b) drugs we distribute to other PBMs’ clients under limited distribution contracts with pharmaceutical manufacturers, and (c) FreedomFP claims.

The following table presents the balance sheet information about our reportable segments, including the discontinued operations of our acute infusion therapies line of business, the businesses within UBC that were sold, EAV and our European operations:

(in millions)	PBM		Other Business Operations		Discontinued Operations		Total
As of December 31, 2013
Total assets	$	52,599.1	$	918.1	$	31.0	$	53,548.2
Investment in equity method investees	$	30.2	$	—	$	—	$	30.2
As of December 31, 2012
Total assets	$	54,510.8	$	3,021.2	$	579.2	$	58,111.2
Investment in equity method investees	$	11.9	$	—	$	—	$	11.9

Segment Reporting Information, Revenue by Major Customers

The following table shows the percentage of total revenue represented by our top five clients and clients representing 10% or greater of our consolidated revenue for each respective period:

	December 31,
	2013		2012		2011
WellPoint	12.2	%	13.7	%	29.5	%
Department of Defense (“DoD”)	10.2	%	10.6	%	20.9	%
Other	16.0	%	15.0	%	6.3	%
Top five clients	38.4	%	39.3	%	56.7	%

XML

Dispositions - Summary of Charges Associated with Dispositions of Businesses (Detail) (USD $)	12 Months Ended				3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended		0 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 SG&A [Member]	Dec. 31, 2012 SG&A [Member]	Sep. 30, 2012 EAV [Member]	Dec. 31, 2013 EAV [Member]	Dec. 31, 2012 EAV [Member]	Jun. 30, 2013 Technology solutions and publications for biopharmaceutical companies [Member]	Dec. 31, 2013 Technology solutions and publications for biopharmaceutical companies [Member]	Dec. 31, 2012 Technology solutions and publications for biopharmaceutical companies [Member]	Sep. 30, 2013 Health economics, outcomes research, data analytics and market access services [Member]	Dec. 31, 2013 Health economics, outcomes research, data analytics and market access services [Member]	Dec. 31, 2012 Health economics, outcomes research, data analytics and market access services [Member]	Sep. 30, 2013 Specialty services for pre-market trials [Member]	Dec. 31, 2013 Specialty services for pre-market trials [Member]	Dec. 31, 2012 Specialty services for pre-market trials [Member]	Dec. 31, 2013 Acute infusion therapies line of business [Member]	Dec. 31, 2013 Acute infusion therapies line of business [Member]	Dec. 31, 2012 Acute infusion therapies line of business [Member]	Dec. 31, 2012 Liberty [Member]	Dec. 31, 2012 Liberty [Member] SG&A [Member]	Dec. 31, 2013 Liberty [Member] SG&A [Member]	Dec. 31, 2012 Liberty [Member] SG&A [Member]	Sep. 14, 2012 CYC [Member] SG&A [Member]	Mar. 31, 2013 CYC [Member] SG&A [Member]		Dec. 31, 2013 CYC [Member] SG&A [Member]		Dec. 31, 2012 CYC [Member] SG&A [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain recorded upon sale	$ 52,300,000	$ 3,700,000				$ 0	$ 3,700,000	$ 18,300,000	$ 18,300,000	$ 0	$ 11,400,000	$ 11,400,000	$ 0	$ 22,100,000	$ 22,100,000	$ 0	$ 500,000	$ 500,000	$ 0
Goodwill & Intangible Impairments	(32,900,000)	(11,500,000)			(11,500,000)	0	(11,500,000)		0	0		0	0		0	0		(32,900,000)	0
Gain recorded upon sale, recorded in selling, general and administrative			3,500,000	14,800,000																	500,000	0	500,000	14,300,000	3,500,000	[1]	3,500,000		14,300,000
Goodwill & Intangible Impairments recorded in selling, general and administrative	0	0	0	(23,000,000)																(23,000,000)		0	(23,000,000)				0	[1]	0
Total disposition charges	55,800,000	18,500,000
Total disposition charges	$ (32,900,000)	$ (34,500,000)

[1] Reflects the settlement of certain working capital balances in 2013

XML

Financing - Financing Costs - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		12 Months Ended		12 Months Ended		0 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 June 2009 Senior Notes [Member]	Jun. 09, 2009 June 2009 Senior Notes [Member]	Dec. 31, 2013 May 2011 Senior Notes [Member]	May 02, 2011 May 2011 Senior Notes [Member]	Dec. 31, 2013 November 2011 Senior Notes [Member]	Nov. 14, 2011 November 2011 Senior Notes [Member]	Dec. 31, 2013 February 2012 Senior Notes [Member]	Feb. 06, 2012 February 2012 Senior Notes [Member]	Aug. 07, 2011 Bridge Facility [Member]	Aug. 05, 2011 Bridge Facility [Member]	Dec. 31, 2013 Term Loan Facility Due August 29, 2016 [Member]
Debt Instrument [Line Items]
Financing costs					$ 13.3		$ 10.9		$ 29.9		$ 22.5		$ 91.0	$ 36.1
Average weighted period for amortization of financing costs				5 years 2 months 12 days		5 years		12 years 1 month 6 days		6 years 2 months 12 days				4 years 4 months 24 days
Expensed portion of the bridge facility financing costs												26.0
Commitments under the bridge facility reduction amount												4,000.0
Financing costs, Net													65.0
Proceeds (repayment) of revolving credit line, net	$ 0	$ 1,000.0	$ 0											$ 1,000.0

XML

Goodwill and other intangibles - Additional Information (Detail) (USD $)	12 Months Ended													3 Months Ended	12 Months Ended			3 Months Ended		12 Months Ended			12 Months Ended	3 Months Ended	12 Months Ended														3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2013 Customer Relationships [Member] Minimum [Member]	Dec. 31, 2013 Customer Relationships [Member] Maximum [Member]	Dec. 31, 2013 Other Intangible Assets [Member] Minimum [Member]	Dec. 31, 2013 Other Intangible Assets [Member] Maximum [Member]	Dec. 31, 2013 Trade Names [Member]	Dec. 31, 2013 Acute infusion therapies line of business [Member]	Dec. 31, 2012 Acute infusion therapies line of business [Member]	Dec. 31, 2012 United Biosource LLC Subsidiary [Member]	Dec. 31, 2012 United Biosource LLC Subsidiary [Member] Customer Relationships [Member]	Sep. 30, 2012 EAV [Member]	Dec. 31, 2013 EAV [Member]	Dec. 31, 2012 EAV [Member]	Dec. 31, 2012 EAV [Member] Customer Relationships [Member]	Sep. 30, 2012 EAV [Member] Intangible Assets Excluding Goodwill [Member]	Dec. 31, 2012 EAV [Member] Trade Names [Member]	Dec. 31, 2012 Liberty [Member]	Dec. 31, 2012 Liberty [Member] Customer Relationships [Member]	Dec. 31, 2012 Liberty [Member] Trade Names [Member]	Dec. 31, 2012 CYC [Member]	Sep. 30, 2012 CYC [Member] Trade Names [Member]	Dec. 31, 2013 Pbm Agreement [Member] Customer Contracts [Member]	Dec. 31, 2012 Pbm Agreement [Member] Customer Contracts [Member]	Dec. 31, 2011 Pbm Agreement [Member] Customer Contracts [Member]	Dec. 31, 2013 Pbm [Member]	Dec. 31, 2012 Pbm [Member]		Dec. 31, 2011 Pbm [Member]	Dec. 31, 2013 Pbm [Member] Customer Contracts [Member] participant		Dec. 31, 2012 Pbm [Member] Customer Contracts [Member]		Dec. 31, 2013 Pbm [Member] Trade Names [Member]	Dec. 31, 2012 Pbm [Member] Trade Names [Member]		Sep. 30, 2013 Goodwill [Member] Acute infusion therapies line of business [Member]	Sep. 30, 2012 Goodwill [Member] EAV [Member]	Sep. 30, 2012 Goodwill [Member] CYC [Member]
Goodwill [Line Items]
Amortization expense of other intangible assets	$ 2,037,800,000	$ 1,632,000,000		$ 236,000,000																					$ 114,000,000	$ 114,000,000	$ 114,000,000
Amortization of Financing Costs																												19,600,000	43,600,000		81,000,000
Future aggregate amount of amortization expense in 2014	1,767,800,000
Future aggregate amount of amortization expense in 2015	1,747,400,000
Future aggregate amount of amortization expense in 2016	1,740,200,000
Future aggregate amount of amortization expense in 2017	1,322,700,000
Future aggregate amount of amortization expense in 2018	1,312,000,000
Weighted average amortization period of intangible assets subject to amortization	16 years				5 years	20 years	2 years	30 years	10 years																							10 years
Intangible assets acquired																																14,500,000
Acquired Medicare lives																																87,000
Discontinued operations included goodwill		(127,900,000)	[1]							39,400,000		88,500,000																	(39,400,000)	[1]
Disposal group write off	32,900,000	11,500,000								32,900,000	0			11,500,000	0	11,500,000		9,500,000																					32,900,000	2,000,000
Dispositions		14,000,000	[2]																				12,000,000						0	[2]									6,500,000		12,000,000
Intangible assets, net	0	157,400,000										157,400,000
Intangible assets, net carrying value	14,015,600,000	16,037,900,000	[3]										157,400,000				3,600,000		5,900,000									13,927,900,000	15,931,000,000	[3]		13,676,100,000	[4]	15,634,400,000	[3]	187,600,000	209,900,000	[3]
Intangible assets, gross carrying value	18,103,600,000	18,194,100,000	[3]										181,400,000				5,000,000		7,000,000		35,000,000	7,000,000						17,940,500,000	18,020,900,000	[3]		17,602,300,000	[4]	17,672,700,000	[3]	226,600,000	226,600,000	[3]
Accumulated amortization	4,088,000,000	2,156,200,000	[3]										24,000,000				1,400,000		1,100,000		10,800,000	400,000						4,012,600,000	2,089,900,000	[3]		3,926,200,000	[4]	2,038,300,000	[3]	39,000,000	16,700,000	[3]
Impairment charge against intangible assets	0	0																		23,000,000
Other intangible assets, net	14,015,600,000	16,037,900,000																			24,200,000	6,600,000
Trade names eliminated																								$ 700,000

[1] Represents goodwill associated with the discontinued portions of UBC and our acute infusion therapies line of business.

[2] Represents the disposition of $12.0 million of goodwill associated with the sale of CYC and the impairment of $2.0 million associated with EAV.

[3] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

[4] Changes in gross PBM customer contracts and related accumulated amortization reflect a decrease of $84.4 million related to the write-off of fully depreciated assets.

XML

Changes in business - Summary of Purchase Price (Detail) (Subsidiary Company [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Apr. 02, 2012
Business Acquisition [Line Items]
Cash paid to Medco stockholders	$ 11,309.6	[1]
Total consideration	30,154.4
Employee Stock Option [Member]
Business Acquisition [Line Items]
Value of shares issued to Medco	706.1	[2],[3]
Restricted Stock [Member]
Business Acquisition [Line Items]
Value of shares issued to Medco	174.9	[3]
Common Stock [Member]
Business Acquisition [Line Items]
Value of shares issued to Medco	$ 17,963.8	[4]

[1] Equals Medco outstanding shares multiplied by $28.80 per share.

[2] The fair value of the Company’s equivalent stock options was estimated using the Black-Scholes valuation model utilizing various assumptions. The expected volatility of the Company’s common stock price is a blended rate based on the average historical volatility over the expected term based on daily closing stock prices of ESI and Medco common stock. The expected term of the option is based on Medco historical employee stock option exercise behavior as well as the remaining contractual exercise term.

[3] In accordance with applicable accounting guidance, the fair value of replacement awards attributable to pre-combination service is recorded as part of the consideration transferred in the Merger, while the fair value of replacement awards attributable to post-combination service is recorded separately from the business combination and recognized as compensation cost in the post-acquisition period over the remaining service period.

[4] Equals Medco outstanding shares immediately prior to the Merger multiplied by the exchange ratio of 0.81, multiplied by the Express Scripts opening share price on April 2, 2012 of $56.49.

XML

Summary of significant accounting policies

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Summary of significant accounting policies

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.

XML

Financing - Summary of Company's Debt, Net of Unamortized Discounts (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Senior long term notes	$ 11,946.9	$ 13,283.3
Total debt	13,947.0	15,915.0
Current maturities of long-term debt	1,584.0	934.9
Long-term debt	12,363.0	14,980.1
March 2008 Senior Notes [Member]
Debt Instrument [Line Items]
Senior long term notes	1,378.5	1,720.5
March 2008 Senior Notes [Member] | 7.125% senior notes due 2018 [Member]
Debt Instrument [Line Items]
Senior long term notes	1,378.5	1,417.2
March 2008 Senior Notes [Member] | 6.125% senior notes due 2013 [Member]
Debt Instrument [Line Items]
Senior long term notes	0	303.3
June 2009 Senior Notes [Member]
Debt Instrument [Line Items]
Senior long term notes	497.9	1,496.3
June 2009 Senior Notes [Member] | 6.250% senior notes due 2014 [Member]
Debt Instrument [Line Items]
Senior long term notes	0	998.7
June 2009 Senior Notes [Member] | 7.250% senior notes due 2019 [Member]
Debt Instrument [Line Items]
Senior long term notes	497.9	497.6
September 2010 Senior Notes [Member]
Debt Instrument [Line Items]
Senior long term notes	1,013.7	1,018.5
September 2010 Senior Notes [Member] | 2.750% senior notes due 2015 [Member]
Debt Instrument [Line Items]
Senior long term notes	506.9	510.9
September 2010 Senior Notes [Member] | 4.125% senior notes due 2020 [Member]
Debt Instrument [Line Items]
Senior long term notes	506.8	507.6
May 2011 Senior Notes [Member] | 3.125% senior notes due 2016 [Member]
Debt Instrument [Line Items]
Senior long term notes	1,497.0	1,495.8
November 2011 Senior Notes [Member]
Debt Instrument [Line Items]
Senior long term notes	4,089.1	4,087.8
November 2011 Senior Notes [Member] | 3.500% senior notes due 2016 [Member]
Debt Instrument [Line Items]
Senior long term notes	1,249.8	1,249.7
November 2011 Senior Notes [Member] | 4.750% senior notes due 2021 [Member]
Debt Instrument [Line Items]
Senior long term notes	1,241.2	1,240.3
November 2011 Senior Notes [Member] | 2.750% senior notes due 2014 [Member]
Debt Instrument [Line Items]
Senior long term notes	899.7	899.4
November 2011 Senior Notes [Member] | 6.125% senior notes due 2041 [Member]
Debt Instrument [Line Items]
Senior long term notes	698.4	698.4
February 2012 Senior Notes [Member]
Debt Instrument [Line Items]
Senior long term notes	3,470.7	3,464.4
February 2012 Senior Notes [Member] | 2.650% senior notes due 2017 [Member]
Debt Instrument [Line Items]
Senior long term notes	1,490.7	1,487.9
February 2012 Senior Notes [Member] | 2.100% senior notes due 2015 [Member]
Debt Instrument [Line Items]
Senior long term notes	998.1	996.5
February 2012 Senior Notes [Member] | 3.900% senior notes due 2022 [Member]
Debt Instrument [Line Items]
Senior long term notes	981.9	980.0
Term facility due August 29, 2016 [Member]
Debt Instrument [Line Items]
Total debt	2,000.0	2,631.6
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Total debt	$ 0.1	$ 0.1

XML

Fair value measurements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities, included in other assets	$ 18.7	$ 15.8
Recurring Basis [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	845.2	1,572.3
Restricted cash and investments	22.8	19.6
Trading securities, included in other assets	$ 18.7	$ 15.8
Average maturity period of investment in AAA-rated money market mutual funds, days	P90D

XML

Dispositions (Tables)

12 Months Ended

Dec. 31, 2013

Discontinued Operations and Disposal Groups [Abstract]

Summary of Charges Associated with Disposed Businesses

Below is a summary of 2013 and 2012 charges associated with these businesses and the impact to our consolidated statement of operations:

	December 31, 2013					December 31, 2012
(in millions)	Gain recorded upon sale		Goodwill & Intangible Impairments			Gain recorded upon sale		Goodwill & Intangible Impairments
EAV	$	—	$	—		$	3.7	$	(11.5	)
Disposed UBC operations
Technology solutions and publications for biopharmaceutical companies	18.3		—			—		—
Health economics, outcomes research, data analytics and market access services	11.4		—			—		—
Specialty services for pre-market trials	22.1		—			—		—
Acute infusion therapies line of business	0.5		(32.9		)	—		—
Recorded in net loss from discontinued operations, net of tax	$	52.3	$	(32.9	)	$	3.7	$	(11.5	)
Liberty	$	—	$	—		$	0.5	$	(23.0	)
CYC(1)	3.5		—			14.3		—
Recorded in selling, general and administrative	$	3.5	$	—		$	14.8	$	(23.0	)
Total disposition charges	$	55.8	$	(32.9	)	$	18.5	$	(34.5	)

(1) Reflects the settlement of certain working capital balances in 2013

Major Components of Assets and Liabilities Discontinued Operations

The major components of assets and liabilities of these discontinued operations are as follows:

	December 31,
(in millions)	2013		2012
Current assets	$	31.0	$	271.4
Goodwill	—		127.9
Other intangible assets, net	—		157.4
Other assets	—		22.5
Total assets	$	31.0	$	579.2
Current liabilities	$	1.3	$	150.7
Deferred taxes	—		44.9
Other liabilities	0.1		3.7
Total liabilities	$	1.4	$	199.3

Select statement of operations information. Certain information with respect to discontinued operations, as defined above, for the years ended December 31, 2013 and 2012 is summarized below. There were no discontinued operations for the year ended December 31, 2011.

(in millions)	2013			2012
Revenues	$	521.2		$	702.3
Operating loss	(24.9		)	(22.7		)
Income tax expense from discontinued operations	(28.7		)	(7.5		)
Net loss from discontinued operations, net of tax	$	(53.6	)	$	(32.3	)

XML

Changes in business (Tables)

12 Months Ended

Dec. 31, 2013

Business Combinations [Abstract]

Summary of Purchase Price

Based on the opening price of Express Scripts’ stock on April 2, 2012, the purchase price was comprised of the following:

(in millions)
Cash paid to Medco stockholders(1)	$	11,309.6
Value of shares of common stock issued to Medco stockholders(2)	17,963.8
Value of stock options issued to holders of Medco stock options(3)(4)	706.1
Value of restricted stock units issued to holders of Medco restricted stock units(3)	174.9
Total consideration	$	30,154.4

(1) Equals Medco outstanding shares multiplied by $28.80 per share.

(2) Equals Medco outstanding shares immediately prior to the Merger multiplied by the exchange ratio of 0.81, multiplied by the Express Scripts opening share price on April 2, 2012 of $56.49.

(3) In accordance with applicable accounting guidance, the fair value of replacement awards attributable to pre-combination service is recorded as part of the consideration transferred in the Merger, while the fair value of replacement awards attributable to post-combination service is recorded separately from the business combination and recognized as compensation cost in the post-acquisition period over the remaining service period.

(4) The fair value of the Company’s equivalent stock options was estimated using the Black-Scholes valuation model utilizing various assumptions. The expected volatility of the Company’s common stock price is a blended rate based on the average historical volatility over the expected term based on daily closing stock prices of ESI and Medco common stock. The expected term of the option is based on Medco historical employee stock option exercise behavior as well as the remaining contractual exercise term.

Summary of Combined Results of Operations

The following pro forma financial information is not necessarily indicative of the results of operations as it would have been had the transactions been effected on the assumed date, nor is it necessarily an indication of trends in future results for a number of reasons, including, but not limited to, differences between the assumptions used to prepare the pro forma information, basic shares outstanding and dilutive equivalents, cost savings from operating efficiencies, potential synergies and the impact of incremental costs incurred in integrating the businesses:

	Year Ended December 31,
(in millions, except per share data)	2012		2011
Total revenues	$	109,639.2	$	115,463.4
Net income attributable to Express Scripts	1,345.5		719.8
Basic earnings per share from continuing operations	1.69		0.88
Diluted earnings per share from continuing operations	$	1.66	$	0.87

Components of Preliminary Purchase Price Allocation

As a result of the Merger on April 2, 2012, we acquired the receivables of Medco. The gross contractual amounts receivable and fair value of these receivables as of the acquisition date are shown below. Of the gross amounts due under the contracts as of the date of acquisition, we estimated $43.6 million related to client accounts receivables to be uncollectible.

(in millions)	Gross Contractual Amounts Receivable		Fair Value
Manufacturer Accounts Receivables	$	1,895.2	$	1,895.2
Client Accounts Receivables	2,432.2		2,388.6
Total	$	4,327.4	$	4,283.8

The following table summarizes Express Scripts’ estimates of the fair values of the assets acquired and liabilities assumed in the Merger:

(in millions)	Amounts Recognized as of Acquisition Date
Current assets	$	6,934.9
Property and equipment	1,390.6
Goodwill	23,965.6
Acquired intangible assets	16,216.7
Other noncurrent assets	48.3
Current liabilities	(8,966.4		)
Long-term debt	(3,008.3		)
Deferred income taxes	(5,875.2		)
Other noncurrent liabilities	(551.8		)
Total	$	30,154.4

XML

Condensed consolidating financial information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Ownership In Domestic Subsidiaries	100.00%

XML

Property and equipment - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	Jan. 02, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]
Depreciation expense		$ 428.8	$ 283.0	$ 98.6
Internally developed software net of accumulated depreciation		619.9	743.5
Capitalized amount of internally developed software		62.9
Term of capital lease	4 years		4 years
Capital lease obligation		42.0
Asset retirement obligation for continuing operations		$ 10.1	$ 4.9

XML

Fair value measurements - Carrying Values and Fair Values of Senior Notes (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	$ 11,946.9	$ 13,283.3
Fair Value	12,562.7	14,436.0
March 2008 Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,378.5	1,720.5
Fair Value	1,420.4	1,800.3
March 2008 Senior Notes [Member] | 7.125% senior notes due 2018 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,378.5	1,417.2
Fair Value	1,420.4	1,497.3
March 2008 Senior Notes [Member] | 6.125% senior notes due 2013 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	0	303.3
Fair Value	0	303.0
June 2009 Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	497.9	1,496.3
Fair Value	607.8	1,721.5
June 2009 Senior Notes [Member] | 6.250% senior notes due 2014 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	0	998.7
Fair Value	0	1,076.4
June 2009 Senior Notes [Member] | 7.250% senior notes due 2019 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	497.9	497.6
Fair Value	607.8	645.1
September 2010 Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,013.7	1,018.5
Fair Value	1,034.6	1,068.5
September 2010 Senior Notes [Member] | 2.750% senior notes due 2015 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	506.9	510.9
Fair Value	514.9	522.4
September 2010 Senior Notes [Member] | 4.125% senior notes due 2020 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	506.8	507.6
Fair Value	519.7	546.1
May 2011 Senior Notes [Member] | 3.125% senior notes due 2016 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,497.0	1,495.8
Fair Value	1,566.2	1,590.2
November 2011 Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	4,089.1	4,087.8
Fair Value	4,367.9	4,598.9
November 2011 Senior Notes [Member] | 3.500% senior notes due 2016 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,249.8	1,249.7
Fair Value	1,324.4	1,347.8
November 2011 Senior Notes [Member] | 4.750% senior notes due 2021 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,241.2	1,240.3
Fair Value	1,325.4	1,425.7
November 2011 Senior Notes [Member] | 2.750% senior notes due 2014 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	899.7	899.4
Fair Value	917.1	930.8
November 2011 Senior Notes [Member] | 6.125% senior notes due 2041 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	698.4	698.4
Fair Value	801.0	894.6
February 2012 Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	3,470.7	3,464.4
Fair Value	3,565.8	3,656.6
February 2012 Senior Notes [Member] | 2.650% senior notes due 2017 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,490.7	1,487.9
Fair Value	1,548.0	1,559.6
February 2012 Senior Notes [Member] | 2.100% senior notes due 2015 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	998.1	996.5
Fair Value	1,014.4	1,023.7
February 2012 Senior Notes [Member] | 3.900% senior notes due 2022 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	981.9	980.0
Fair Value	$ 1,003.4	$ 1,073.3

XML

Property and equipment (Tables)

12 Months Ended

Dec. 31, 2013

Text Block [Abstract]

Property and Equipment, at Cost

Property and equipment of our continuing operations consists of the following:

	December 31,
(in millions)	2013			2012
Land and buildings	$	215.8		$	216.4
Furniture	71.6			66.6
Equipment(1)	707.5			542.5
Computer software	1,582.3			1,321.3
Leasehold improvements	173.4			179.1
Total property and equipment	2,750.6			2,325.9
Less accumulated depreciation(1)	(1,091.7		)	(693.8		)
Property and equipment, net	$	1,658.9		$	1,632.1

(1) Includes gross assets of $58.1 million and accumulated depreciation of $5.5 million related to capital lease assets as of December 31, 2013.

XML

Goodwill and other intangibles (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill and Other Intangible Assets

The following is a summary of our goodwill and other intangible assets for our two reportable segments, PBM and Other Business Operations.

	December 31, 2013							December 31, 2012(1)
(in millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Goodwill
PBM(2)	$	29,315.4	$	(107.4	)	$	29,208.0	$	29,330.4	$	(107.4	)	$	29,223.0
Other Business Operations	97.4		—			97.4		97.4		—			97.4
	$	29,412.8	$	(107.4	)	$	29,305.4	$	29,427.8	$	(107.4	)	$	29,320.4
Other intangible assets
PBM
Customer contracts(3)	$	17,602.3	$	(3,926.2	)	$	13,676.1	$	17,672.7	$	(2,038.3	)	$	15,634.4
Trade names	226.6		(39.0		)	187.6		226.6		(16.7		)	209.9
Miscellaneous(4)	111.6		(47.4		)	64.2		121.6		(34.9		)	86.7
	17,940.5		(4,012.6		)	13,927.9		18,020.9		(2,089.9		)	15,931.0
Other Business Operations
Customer relationships(5)	127.3		(69.2		)	58.1		138.5		(63.2		)	75.3
Trade names	35.8		(6.2		)	29.6		34.7		(3.1		)	31.6
	163.1		(75.4		)	87.7		173.2		(66.3		)	106.9
Total other intangible assets	$	18,103.6	$	(4,088.0	)	$	14,015.6	$	18,194.1	$	(2,156.2	)	$	16,037.9

(1) Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

(2) PBM goodwill associated with the Merger has been reduced by $12.7 million due to finalization of the purchase price allocation during the first quarter of 2013.

(3) Changes in gross PBM customer contracts and related accumulated amortization reflect a decrease of $84.4 million related to the write-off of fully depreciated assets. Changes in PBM customer contracts also reflect an increase of $14.5 million related to the SmartD asset acquisition, as discussed below.

(4) Changes in gross miscellaneous intangible assets and related accumulated amortization reflect a decrease of $10.0 million following the write-off of deferred financing fees related to the early repayment and the redemption of senior notes. See Note 7 - Financing for additional information.

(5) Changes in gross customer relationships and related accumulated amortization reflect a decrease of $11.2 million. These balances reflect amounts written off and have no net impact on the net other intangible assets balance.

Summary of Change in Net Carrying Value of Goodwill by Business Segment

A summary of the change in the net carrying value of goodwill by business segment is shown in the following table:

(in millions)	PBM			Other Business Operations			Total
Balance at December 31, 2011	$	5,405.2		$	80.5		$	5,485.7
Acquisitions(1)	23,856.5			121.8			23,978.3
Discontinued operations(2)	(39.4		)	(88.5		)	(127.9		)
Dispositions(3)	—			(14.0		)	(14.0		)
Foreign currency translation and other	0.7			(2.4		)	(1.7		)
Balance at December 31, 2012	$	29,223.0		$	97.4		$	29,320.4
Purchase price allocation adjustment(4)	(12.7		)	—			(12.7		)
Foreign currency translation	(2.3		)	—			(2.3		)
Balance at December 31, 2013	$	29,208.0		$	97.4		$	29,305.4

(1) Represents the acquisition of Medco in April 2012.

(2) Represents goodwill associated with the discontinued portions of UBC and our acute infusion therapies line of business.

(3) Represents the disposition of $12.0 million of goodwill associated with the sale of CYC and the impairment of $2.0 million associated with EAV.

(4) Goodwill associated with the Merger has been adjusted due to the finalization of the purchase price allocation during the first quarter of 2013.

XML

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 1,872.7	$ 1,330.1	$ 1,278.5
Net loss from discontinued operations, net of tax	53.6	32.3	0
Net income from continuing operations	1,926.3	1,362.4	1,278.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,447.0	1,871.4	253.4
Deferred income taxes	(573.7)	(389.0)	137.8
Employee stock-based compensation expense	164.7	410.0	48.8
Other, net	29.2	70.5	97.1
Changes in operating assets and liabilities
Accounts receivable	1,254.0	345.7	(206.1)
Inventories	(218.9)	(515.0)	8.0
Other current and noncurrent assets	94.2	303.2	119.2
Claims and rebates payable	(672.2)	82.8	207.5
Accounts payable	15.9	963.1	271.4
Other current and noncurrent liabilities	302.4	246.0	(22.5)
Net cash provided by operating activities—continuing operations	4,768.9	4,751.1	2,193.1
Net cash (used in) provided by operating activities—discontinued operations	(11.4)	30.5	0
Net cash flows provided by operating activities	4,757.5	4,781.6	2,193.1
Cash flows from investing activities:
Purchases of property and equipment	(423.0)	(160.2)	(144.4)
Proceeds from the sale of business	356.9	61.5	0
Acquisitions, net of cash acquired	(14.5)	(10,326.0)	0
Other	10.6	(4.0)	20.5
Net cash used in investing activities—continuing operations	(70.0)	(10,428.7)	(123.9)
Acquisitions, cash acquired—discontinued operations	0	42.4	0
Net cash used in investing activities—discontinued operations	(2.1)	(5.4)	0
Net cash used in investing activities	(72.1)	(10,391.7)	(123.9)
Cash flows from financing activities:
Treasury stock acquired	(4,055.2)	0	(2,515.7)
Repayment of long-term debt	(1,931.6)	(3,868.5)	(0.1)
Net proceeds from employee stock plans	466.0	326.0	32.2
Excess tax benefit relating to employee stock-based compensation	42.7	45.3	28.3
Distributions paid to non-controlling interest	(31.7)	(8.1)	(1.1)
Proceeds from long-term debt, net of discounts	0	7,458.9	5,580.3
Repayment of revolving credit line, net	0	(1,000.0)	0
Proceeds from accounts receivable financing facility	0	600.0	0
Repayment of accounts receivable financing facility	0	(600.0)	0
Deferred financing fees	0	(103.2)	(91.6)
Other	15.0	0	(2.9)
Net cash (used in) provided by financing activities—continuing operations	(5,494.8)	2,850.4	3,029.4
Net cash used in financing activities—discontinued operations	0	(26.8)	0
Net cash (used in) provided by financing activities	(5,494.8)	2,823.6	3,029.4
Effect of foreign currency translation adjustment	(5.7)	2.0	(2.2)
Less cash decrease (increase) attributable to discontinued operations	13.4	(42.5)	0
Net (decrease) increase in cash and cash equivalents	(801.7)	(2,827.0)	5,096.4
Cash and cash equivalents at beginning of year	2,793.1	5,620.1	523.7
Cash and cash equivalents at end of year	1,991.4	2,793.1	5,620.1
Cash paid during the year for:
Income tax payments, net of refunds	1,648.4	1,164.0	487.3
Interest	$ 548.1	$ 587.3	$ 181.6

XML

Financing (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Summary of Company's Debt, Net of Unamortized Discounts

The Company’s debt, net of unamortized discounts and premiums, consists of:

	December 31,
(in millions)	2013		2012
Long-term debt:
March 2008 Senior Notes
7.125% senior notes due 2018	$	1,378.5	$	1,417.2
6.125% senior notes due 2013	—		303.3
	1,378.5		1,720.5
June 2009 Senior Notes
6.250% senior notes due 2014	—		998.7
7.250% senior notes due 2019	497.9		497.6
	497.9		1,496.3
September 2010 Senior Notes
2.750% senior notes due 2015	506.9		510.9
4.125% senior notes due 2020	506.8		507.6
	1,013.7		1,018.5
May 2011 Senior Notes
3.125% senior notes due 2016	1,497.0		1,495.8
November 2011 Senior Notes
3.500% senior notes due 2016	1,249.8		1,249.7
4.750% senior notes due 2021	1,241.2		1,240.3
2.750% senior notes due 2014	899.7		899.4
6.125% senior notes due 2041	698.4		698.4
	4,089.1		4,087.8
February 2012 Senior Notes
2.650% senior notes due 2017	1,490.7		1,487.9
2.100% senior notes due 2015	998.1		996.5
3.900% senior notes due 2022	981.9		980.0
	3,470.7		3,464.4
Term facility due August 29, 2016 with an average interest rate of 1.92% at December 31, 2013 and 1.96% at December 31, 2012	2,000.0		2,631.6
Other	0.1		0.1
Total debt	13,947.0		15,915.0
Less: Current maturities of long-term debt	1,584.0		934.9
Total long-term debt	$	12,363.0	$	14,980.1

Schedule of Current Maturities for Long-term Debt

The following represents the schedule of current maturities, excluding unamortized discounts and premiums, for our long-term debt as of December 31, 2013 (amounts in millions):

Year Ended December 31,
2014	$	1,584.3
2015	2,552.6
2016	3,013.2
2017	1,500.0
2018	1,200.0
Thereafter	3,950.0
	$	13,800.1

XML

Employee benefit plans and stock-based compensation plans - Weighted Average Assumptions to Value Options and SSRs Granted (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%
Weighted-average volatility of stock	34.10%	35.50%	36.60%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of option	4 years	2 years	2 years
Risk-free interest rate	0.60%	0.30%	0.30%
Expected volatility of stock	27.00%	29.00%	30.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of option	5 years	5 years	5 years
Risk-free interest rate	1.70%	0.90%	2.20%
Expected volatility of stock	37.00%	38.00%	39.00%

XML

Summary of significant accounting policies - Additional Information (Detail) (USD $)	3 Months Ended										12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]
Restricted cash and investments	$ 22,800,000					$ 19,600,000					$ 22,800,000		$ 19,600,000
Unbilled receivables	2,618,300,000					1,792,000,000					2,618,300,000		1,792,000,000
Unbilled receivables billing period											30 days
Allowance for doubtful accounts for continuing operations						132,500,000							132,500,000
Percentage of allowance for doubtful accounts for continuing operations											4.80%		2.40%
Amortization expense of capitalized software											205,000,000		137,600,000		26,200,000
Trading securities	18,700,000					15,800,000					18,700,000		15,800,000
Net gain (loss) recognized on the trading portfolio											1,200,000		1,000,000		(100,000)
Disposal group write off											32,900,000		11,500,000
Impairment charge											0		0
Amortization period											16 years
Amount of other intangible assets reported, net of accumulated amortization	4,088,000,000					2,156,200,000	[1]				4,088,000,000		2,156,200,000	[1]
Amortization expense of other intangible assets											2,037,800,000		1,632,000,000		236,000,000
Retail pharmacy co-payments included in network revenues	2,775,100,000		2,966,500,000	3,204,300,000	3,674,400,000	3,304,000,000		3,348,900,000	3,519,100,000	1,496,600,000	12,620,300,000		11,668,600,000		5,786,600,000
Percentage of catastrophic reinsurance subsidy from CMS											80.00%
Vesting period											3 years
Foreign currency translation adjustment, credit balances	11,700,000					18,900,000					11,700,000		18,900,000
Foreign currency translation adjustment											(7,200,000)		1,900,000		(2,800,000)
Stock Options And Stock Settled Stock Appreciation Rights One [Member]
Summary Of Significant Accounting Policies [Line Items]
Vesting period											12 months
Stock Options And Stock Settled Stock Appreciation Rights Two [Member]
Summary Of Significant Accounting Policies [Line Items]
Vesting period											24 months
Stock Options And Stock Settled Stock Appreciation Rights Three [Member]
Summary Of Significant Accounting Policies [Line Items]
Vesting period											36 months
Pbm [Member]
Summary Of Significant Accounting Policies [Line Items]
Amount of other intangible assets reported, net of accumulated amortization	4,012,600,000					2,089,900,000	[1]				4,012,600,000		2,089,900,000	[1]
Deferred financing fees, amortization expense											19,600,000		43,600,000		81,000,000
SG&A [Member]
Summary Of Significant Accounting Policies [Line Items]
Impairment charge											0		23,000,000
Amortization expense of other intangible assets											1,904,200,000		1,474,400,000		40,700,000
State of Illinois [Member]
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable	320,100,000					308,400,000					320,100,000		308,400,000
EAV [Member]
Summary Of Significant Accounting Policies [Line Items]
Disposal group write off								11,500,000			0		11,500,000
Liberty [Member]
Summary Of Significant Accounting Policies [Line Items]
Impairment charge													23,000,000
Liberty [Member] | SG&A [Member]
Summary Of Significant Accounting Policies [Line Items]
Impairment charge											0		23,000,000
Acute infusion therapies line of business [Member]
Summary Of Significant Accounting Policies [Line Items]
Disposal group write off											32,900,000		0
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Equity Method Investment, Ownership Percentage	20.00%										20.00%
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Equity Method Investment, Ownership Percentage	50.00%										50.00%
Intangible Assets Excluding Goodwill [Member] | EAV [Member]
Summary Of Significant Accounting Policies [Line Items]
Disposal group write off								9,500,000
Customer Related Intangible [Member] | WellPoint [Member]
Summary Of Significant Accounting Policies [Line Items]
Contract period (years)											10 years
Amortization period											15 years
Customer Related Intangible [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											5 years
Customer Related Intangible [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											20 years
Customer Contracts And Relationships [Member] | Subsidiary Company [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											2 years
Customer Contracts And Relationships [Member] | Subsidiary Company [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											16 years
Customer Contracts [Member] | Pbm [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											10 years
Amount of other intangible assets reported, net of accumulated amortization	3,926,200,000	[2]				2,038,300,000	[1]				3,926,200,000	[2]	2,038,300,000	[1]
Customer Contracts [Member] | Pbm Agreement [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization expense of other intangible assets											114,000,000		114,000,000		114,000,000
Trade Names [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											10 years
Trade Names [Member] | Pbm [Member]
Summary Of Significant Accounting Policies [Line Items]
Amount of other intangible assets reported, net of accumulated amortization	39,000,000					16,700,000	[1]				39,000,000		16,700,000	[1]
Trade Names [Member] | EAV [Member]
Summary Of Significant Accounting Policies [Line Items]
Amount of other intangible assets reported, net of accumulated amortization						1,100,000							1,100,000
Trade Names [Member] | Liberty [Member]
Summary Of Significant Accounting Policies [Line Items]
Amount of other intangible assets reported, net of accumulated amortization						400,000							400,000
Other Intangible Assets [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											2 years
Other Intangible Assets [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period											30 years
Furniture [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives											7 years
Equipment And Purchased Computer Software [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives											3 years
Equipment And Purchased Computer Software [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives											5 years
Building [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives											10 years
Building [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives											35 years
Capitalized Software [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives											5 years
Goodwill [Member] | EAV [Member]
Summary Of Significant Accounting Policies [Line Items]
Disposal group write off								2,000,000
Goodwill [Member] | Acute infusion therapies line of business [Member]
Summary Of Significant Accounting Policies [Line Items]
Disposal group write off			32,900,000
Claims and rebates payable, accounts payable and accrued expenses [Member]
Summary Of Significant Accounting Policies [Line Items]
Bank Overdrafts	$ 684,400,000					$ 545,300,000					$ 684,400,000		$ 545,300,000

[1] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

[2] Changes in gross PBM customer contracts and related accumulated amortization reflect a decrease of $84.4 million related to the write-off of fully depreciated assets.

XML

Dispositions - Additional Information (Detail) (USD $)	12 Months Ended				8 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended		12 Months Ended		3 Months Ended	8 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended				12 Months Ended		0 Months Ended	3 Months Ended		12 Months Ended			3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 SG&A [Member]	Dec. 31, 2012 SG&A [Member]	Dec. 04, 2012 Liberty [Member]	Dec. 31, 2012 Liberty [Member] Minimum [Member]	Dec. 31, 2013 Acute infusion therapies line of business [Member]	Dec. 31, 2013 Acute infusion therapies line of business [Member]	Dec. 31, 2012 Acute infusion therapies line of business [Member]	Sep. 30, 2013 Specialty services for pre-market trials [Member]	Dec. 31, 2013 Specialty services for pre-market trials [Member]	Dec. 31, 2012 Specialty services for pre-market trials [Member]	Sep. 30, 2013 Health economics, outcomes research, data analytics and market access services [Member]	Dec. 31, 2013 Health economics, outcomes research, data analytics and market access services [Member]	Dec. 31, 2012 Health economics, outcomes research, data analytics and market access services [Member]	Jun. 30, 2013 Technology solutions and publications for biopharmaceutical companies [Member]	Dec. 31, 2013 Technology solutions and publications for biopharmaceutical companies [Member]	Dec. 31, 2012 Technology solutions and publications for biopharmaceutical companies [Member]	Dec. 31, 2012 EAV [Member]	Sep. 30, 2012 EAV [Member]	Dec. 31, 2013 EAV [Member]	Dec. 31, 2012 EAV [Member]	Sep. 30, 2012 EAV [Member] Intangible Assets Excluding Goodwill [Member]	Dec. 04, 2012 Liberty [Member]	Dec. 31, 2012 Liberty [Member]	Dec. 31, 2012 Liberty [Member] SG&A [Member]	Dec. 31, 2013 Liberty [Member] SG&A [Member]	Dec. 31, 2012 Liberty [Member] SG&A [Member]	Dec. 31, 2012 Liberty [Member] Customer Relationships [Member]	Dec. 31, 2012 Liberty [Member] Trade Names [Member]	Dec. 31, 2012 CYC [Member]	Dec. 31, 2011 CYC [Member]	Sep. 14, 2012 CYC [Member] SG&A [Member]	Mar. 31, 2013 CYC [Member] SG&A [Member]		Dec. 31, 2013 CYC [Member] SG&A [Member]		Dec. 31, 2012 CYC [Member] SG&A [Member]	Sep. 30, 2013 Goodwill [Member] Acute infusion therapies line of business [Member]	Sep. 30, 2012 Goodwill [Member] EAV [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	$ 52,300,000	$ 3,700,000					$ 500,000	$ 500,000	$ 0	$ 22,100,000	$ 22,100,000	$ 0	$ 11,400,000	$ 11,400,000	$ 0	$ 18,300,000	$ 18,300,000	$ 0			$ 0	$ 3,700,000
Disposal group write off	32,900,000	11,500,000						32,900,000	0		0	0		0	0		0	0		11,500,000	0	11,500,000	9,500,000																32,900,000	2,000,000
Pre-tax Gain (loss) on the sale and other charges of discontinued operation																			3,700,000
Minimum numbers of years work as a back end pharmacy supplier						2 years
Gain (Loss) on the sale related to disposal of business			3,500,000	14,800,000																						500,000	0	500,000					14,300,000	3,500,000	[1]	3,500,000		14,300,000
Goodwill & Intangible Impairments recorded in selling, general and administrative	0	0	0	23,000,000																					23,000,000		0	23,000,000								0	[1]	0
Carrying value of intangibles	14,015,600,000	16,037,900,000																											24,200,000	6,600,000
Total Revenue form Liberty line of business	521,200,000	702,300,000			323,900,000
Operating income (loss)																								32,300,000							14,700,000	(100,000)
Total assets																																36,900,000
Goodwill carrying amount																																12,000,000
Cash attributable to discontinued operations																																$ 14,900,000
Maximum percentage of assets on total consolidated assets																																0.10%

[1] Reflects the settlement of certain working capital balances in 2013

XML

Income taxes - Schedule of Deferred Tax Assets and Deferred Tax Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:
Allowance for doubtful accounts	$ 70.9	$ 61.6
Note premium	81.6	101.7
Tax attributes	85.9	62.7
Deferred compensation	6.4	12.2
Equity compensation	268.7	359.5
Accrued expenses	406.0	329.9
Federal benefit of uncertain tax positions	181.8	164.9
Investment in foreign subsidiaries	0	15.6
Other	16.4	19.0
Gross deferred tax assets	1,117.7	1,127.1
Less valuation allowance	(66.9)	(34.7)
Net deferred tax assets	1,050.8	1,092.4
Deferred tax liabilities:
Depreciation and property differences	(434.3)	(444.6)
Goodwill and intangible assets	(5,585.9)	(6,164.7)
Prepaids	(4.0)	(7.7)
Other	(11.8)	(11.3)
Gross deferred tax liabilities	(6,036.0)	(6,628.3)
Net deferred tax liabilities	$ (4,985.2)	$ (5,535.9)

XML

CONSOLIDATED BALANCE SHEET (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 1,991.4	$ 2,793.1
Restricted cash and investments	22.8	19.6
Receivables, net	4,022.9	5,425.8
Inventories	1,871.1	1,652.1
Deferred taxes	455.4	400.6
Prepaid expenses and other current assets	96.8	194.3
Current assets of discontinued operations	31.0	271.4
Total current assets	8,491.4	10,756.9
Property and equipment, net	1,658.9	1,632.1
Goodwill	29,305.4	29,320.4	[1]
Other intangible assets, net	14,015.6	16,037.9
Other assets	76.9	56.1
Noncurrent assets of discontinued operations	0	307.8
Total assets	53,548.2	58,111.2
Current liabilities:
Claims and rebates payable	6,767.8	7,440.0
Accounts payable	2,900.0	2,898.9
Accrued expenses	1,982.2	1,632.9
Current maturities of long-term debt	1,584.0	934.9
Current liabilities of discontinued operations	1.3	150.7
Total current liabilities	13,235.3	13,057.4
Long-term debt	12,363.0	14,980.1
Deferred taxes	5,440.6	5,936.5
Other liabilities	664.4	692.9
Noncurrent liabilities of discontinued operations	0.1	48.6
Total liabilities	31,703.4	34,715.5
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, 15.0 shares authorized, $0.01 par value per share; and no shares issued and outstanding	0	0
Common stock, 2,985.0 shares authorized, $0.01 par value; shares issued: 834.0 and 818.1, respectively; shares outstanding: 773.6 and 818.1, respectively	8.3	8.2
Additional paid-in capital	21,809.9	21,289.7
Accumulated other comprehensive income	11.7	18.9
Retained earnings	3,912.8	2,068.2
Stockholders' equity before treasury stock	25,742.7	23,385.0
Common stock in treasury at cost, 60.4 and zero shares, respectively	(3,905.3)	0
Total Express Scripts stockholders’ equity	21,837.4	23,385.0
Non-controlling interest	7.4	10.7
Total stockholders’ equity	21,844.8	23,395.7
Total liabilities and stockholders’ equity	$ 53,548.2	$ 58,111.2

[1] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

XML

Fair value measurements Fair value measurements - Carrying Values and Fair Values of Senior Notes (Parenthetical) (Details)	Dec. 31, 2013 March 2008 Senior Notes [Member] 7.125% senior notes due 2018 [Member]	Dec. 31, 2012 March 2008 Senior Notes [Member] 7.125% senior notes due 2018 [Member]	Mar. 18, 2008 March 2008 Senior Notes [Member] 7.125% senior notes due 2018 [Member]	Dec. 31, 2013 March 2008 Senior Notes [Member] 6.125% senior notes due 2013 [Member]	Dec. 31, 2012 March 2008 Senior Notes [Member] 6.125% senior notes due 2013 [Member]	Mar. 18, 2008 March 2008 Senior Notes [Member] 6.125% senior notes due 2013 [Member]	Dec. 31, 2013 June 2009 Senior Notes [Member] 6.250% senior notes due 2014 [Member]	Dec. 31, 2012 June 2009 Senior Notes [Member] 6.250% senior notes due 2014 [Member]	Mar. 29, 2012 June 2009 Senior Notes [Member] 6.250% senior notes due 2014 [Member]	Jun. 09, 2009 June 2009 Senior Notes [Member] 6.250% senior notes due 2014 [Member]	Dec. 31, 2013 June 2009 Senior Notes [Member] 7.250% senior notes due 2019 [Member]	Dec. 31, 2012 June 2009 Senior Notes [Member] 7.250% senior notes due 2019 [Member]	Jun. 09, 2009 June 2009 Senior Notes [Member] 7.250% senior notes due 2019 [Member]	Dec. 31, 2013 September 2010 Senior Notes [Member] 2.750% senior notes due 2015 [Member]	Dec. 31, 2012 September 2010 Senior Notes [Member] 2.750% senior notes due 2015 [Member]	Sep. 10, 2010 September 2010 Senior Notes [Member] 2.750% senior notes due 2015 [Member]	Dec. 31, 2013 September 2010 Senior Notes [Member] 4.125% senior notes due 2020 [Member]	Dec. 31, 2012 September 2010 Senior Notes [Member] 4.125% senior notes due 2020 [Member]	Sep. 10, 2010 September 2010 Senior Notes [Member] 4.125% senior notes due 2020 [Member]	Dec. 31, 2013 May 2011 Senior Notes [Member] 3.125% senior notes due 2016 [Member]	Dec. 31, 2012 May 2011 Senior Notes [Member] 3.125% senior notes due 2016 [Member]	May 02, 2011 May 2011 Senior Notes [Member] 3.125% senior notes due 2016 [Member]	Dec. 31, 2013 November 2011 Senior Notes [Member] 3.500% senior notes due 2016 [Member]	Dec. 31, 2012 November 2011 Senior Notes [Member] 3.500% senior notes due 2016 [Member]	Nov. 14, 2011 November 2011 Senior Notes [Member] 3.500% senior notes due 2016 [Member]	Dec. 31, 2013 November 2011 Senior Notes [Member] 4.750% senior notes due 2021 [Member]	Dec. 31, 2012 November 2011 Senior Notes [Member] 4.750% senior notes due 2021 [Member]	Nov. 14, 2011 November 2011 Senior Notes [Member] 4.750% senior notes due 2021 [Member]	Dec. 31, 2013 November 2011 Senior Notes [Member] 2.750% senior notes due 2014 [Member]	Dec. 31, 2012 November 2011 Senior Notes [Member] 2.750% senior notes due 2014 [Member]	Nov. 14, 2011 November 2011 Senior Notes [Member] 2.750% senior notes due 2014 [Member]	Dec. 31, 2013 November 2011 Senior Notes [Member] 6.125% senior notes due 2041 [Member]	Dec. 31, 2012 November 2011 Senior Notes [Member] 6.125% senior notes due 2041 [Member]	Nov. 14, 2011 November 2011 Senior Notes [Member] 6.125% senior notes due 2041 [Member]	Dec. 31, 2013 February 2012 Senior Notes [Member] 2.650% senior notes due 2017 [Member]	Dec. 31, 2012 February 2012 Senior Notes [Member] 2.650% senior notes due 2017 [Member]	Feb. 06, 2012 February 2012 Senior Notes [Member] 2.650% senior notes due 2017 [Member]	Dec. 31, 2013 February 2012 Senior Notes [Member] 2.100% senior notes due 2015 [Member]	Dec. 31, 2012 February 2012 Senior Notes [Member] 2.100% senior notes due 2015 [Member]	Feb. 06, 2012 February 2012 Senior Notes [Member] 2.100% senior notes due 2015 [Member]	Dec. 31, 2013 February 2012 Senior Notes [Member] 3.900% senior notes due 2022 [Member]	Dec. 31, 2012 February 2012 Senior Notes [Member] 3.900% senior notes due 2022 [Member]	Feb. 06, 2012 February 2012 Senior Notes [Member] 3.900% senior notes due 2022 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest rate on debt instrument	7.125%	7.125%	7.125%	6.125%	6.125%	6.125%	6.25%	6.25%	6.25%	6.25%	7.25%	7.25%	7.25%	2.75%	2.75%	2.75%	4.125%	4.125%	4.125%	3.125%	3.125%	3.125%	3.50%	3.50%	3.50%	4.75%	4.75%	4.75%	2.75%	2.75%	2.75%	6.125%	6.125%	6.125%	2.65%	2.65%	2.65%	2.10%	2.10%	2.10%	3.90%	3.90%	3.90%

XML

Segment information - Reportable Segments Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Total revenues	$ 25,781.4	[1],[2]	$ 25,915.6	[1],[2]	$ 26,381.9	[1],[2]	$ 26,019.9	[1],[2]	$ 27,365.1	[1],[2]	$ 26,761.6	[1],[2]	$ 27,455.0	[1],[2],[3]	$ 12,132.6	[1],[2],[3]	$ 104,098.8	[4]	$ 93,714.3	[4]	$ 46,128.3	[4]
Other revenues																	2,001.9		2,118.7		1,279.3
Service revenues																	1,231.3		969.2		294.3
Depreciation and amortization expense																	2,447.0		1,871.4		253.4
Operating income	828.8	[2]	875.5	[2]	1,004.3	[2]	843.1	[2]	906.9	[2]	820.7	[2]	499.4	[2],[3]	566.9	[2],[3]	3,551.7		2,793.9		2,314.4
Equity income from joint venture																	32.8		14.9		0
Interest income																	41.9		10.6		12.4
Interest expense and other																	(596.1)		(619.0)		(299.7)
Income before income taxes																	3,030.3		2,200.4		2,027.1
Capital expenditures																	423.0		160.2		144.4
Retail pharmacy co-payments included in network revenues	2,775.1		2,966.5		3,204.3		3,674.4		3,304.0		3,348.9		3,519.1		1,496.6		12,620.3		11,668.6		5,786.6
Network [Member]
Segment Reporting Information [Line Items]
Total revenues																	63,244.4	[4]	57,765.5	[4]	30,007.3	[4]
Home delivery and specialty revenues [Member]
Segment Reporting Information [Line Items]
Total revenues																	37,621.2	[5]	32,860.9	[5]	14,547.4	[5]
Pbm [Member]
Segment Reporting Information [Line Items]
Total revenues																	101,885.7		91,432.2		44,827.7
Other revenues																	0		0		0
Service revenues																	1,020.1		805.8		273.0
Depreciation and amortization expense																	2,419.1		1,833.3		245.2
Operating income																	3,502.0		2,815.1		2,302.6
Capital expenditures																	411.2		148.5		140.0
Pbm [Member] | Network [Member]
Segment Reporting Information [Line Items]
Total revenues																	63,244.4	[4]	57,765.5	[4]	30,007.3	[4]
Pbm [Member] | Home delivery and specialty revenues [Member]
Segment Reporting Information [Line Items]
Total revenues																	37,621.2	[5]	32,860.9	[5]	14,547.4	[5]
Other Business Operations [Member]
Segment Reporting Information [Line Items]
Total revenues																	2,213.1		2,282.1		1,300.6
Other revenues																	2,001.9		2,118.7		1,279.3
Service revenues																	211.2		163.4		21.3
Depreciation and amortization expense																	27.9		38.1		8.2
Operating income																	49.7		(21.2)		11.8
Capital expenditures																	11.8		11.7		4.4
Other Business Operations [Member] | Network [Member]
Segment Reporting Information [Line Items]
Total revenues																	0	[4]	0	[4]	0	[4]
Other Business Operations [Member] | Home delivery and specialty revenues [Member]
Segment Reporting Information [Line Items]
Total revenues																	$ 0	[5]	$ 0	[5]	$ 0	[5]

[1] Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

[2] Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

[3] Includes the April 2, 2012 acquisition of Medco.

[4] Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

[5] Includes home delivery, specialty and other including: (a) drugs distributed through patient assistance programs and (b) drugs we distribute to other PBMs’ clients under limited distribution contracts with pharmaceutical manufacturers, and (c) FreedomFP claims.

XML

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income	$ 1,872.7	$ 1,330.1	$ 1,278.5
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(7.2)	1.9	(2.8)
Comprehensive income	1,865.5	1,332.0	1,275.7
Less: Comprehensive income attributable to non-controlling interests	28.1	17.2	2.7
Comprehensive income attributable to Express Scripts	$ 1,837.4	$ 1,314.8	$ 1,273.0

XML

Commitments and contingencies - Future Minimum Lease Payments Due Under Noncancellable Operating and Capital Leases (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	$ 85.0
2015	61.1
2016	53.5
2017	42.6
2018	38.4
Thereafter	85.5
Total	366.1
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	14.4
2015	14.4
2016	14.4
2017	0.2
2018	0
Thereafter	0
Total	$ 43.4

XML

Goodwill and other intangible assets - Summary of Change in Net Carrying Value of Goodwill by Business Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013		Dec. 31, 2013		Dec. 31, 2012
Goodwill [Roll Forward]
Beginning Balance	$ 29,320.4	[1]	$ 29,320.4	[1]	$ 5,485.7
Acquisitions					23,978.3	[2]
Discontinued operations					(127.9)	[3]
Dispositions					14.0	[4]
Foreign currency translation and other			(2.3)		(1.7)
Purchase price allocation adjustment			(12.7)	[5]
Ending Balance			29,305.4		29,320.4	[1]
Pbm [Member]
Goodwill [Roll Forward]
Beginning Balance	29,223.0	[1],[6]	29,223.0	[1],[6]	5,405.2
Acquisitions					23,856.5	[2]
Discontinued operations					(39.4)	[3]
Dispositions					0	[4]
Foreign currency translation and other			(2.3)		0.7
Purchase price allocation adjustment	(12.7)		(12.7)	[5]
Ending Balance			29,208.0	[6]	29,223.0	[1],[6]
Other Business Operations [Member]
Goodwill [Roll Forward]
Beginning Balance	97.4	[1]	97.4	[1]	80.5
Acquisitions					121.8	[2]
Discontinued operations					(88.5)	[3]
Dispositions					14.0	[4]
Foreign currency translation and other			0		(2.4)
Purchase price allocation adjustment			0	[5]
Ending Balance			$ 97.4		$ 97.4	[1]

[1] Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

[2] Represents the acquisition of Medco in April 2012.

[3] Represents goodwill associated with the discontinued portions of UBC and our acute infusion therapies line of business.

[4] Represents the disposition of $12.0 million of goodwill associated with the sale of CYC and the impairment of $2.0 million associated with EAV.

[5] Goodwill associated with the Merger has been adjusted due to the finalization of the purchase price allocation during the first quarter of 2013.

[6] PBM goodwill associated with the Merger has been reduced by $12.7 million due to finalization of the purchase price allocation during the first quarter of 2013.

XML

Segment information - Segment Reporting Information, Revenue by Major Customers (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Top five clients	38.40%	39.30%	56.70%
WellPoint [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Top five clients	12.20%	13.70%	29.50%
Department of Defense ("DoD") [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Top five clients	10.20%	10.60%	20.90%
Other [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Top five clients	16.00%	15.00%	6.30%

XML

Pension and other postretirement benefits (Tables)

12 Months Ended

Dec. 31, 2013

Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]

Net Pension and Postretirement Benefit Cost

For the years ended December 31, 2013 and 2012, the net (benefit) cost for the Company’s other postretirement benefit plan consisted of the following components:

	Year Ended December 31,
(in millions)	2013			2012
Interest cost	$	0.1		$	0.1
Net actuarial (gain)/loss	(0.2		)	0.1
Net (benefit) cost	$	(0.1	)	$	0.2

For the years ended December 31, 2013 and 2012, the net benefit for the Company’s pension plan consisted of the following components:

	Year Ended December 31,
(in millions)	2013			2012
Interest cost	$	0.5		$	0.3
Actual return on plan assets	(15.3		)	(7.0		)
Net actuarial (gain)/loss	(0.4		)	0.1
Net benefit	$	(15.2	)	$	(6.6	)

Changes in Plan Assets, Benefit Obligation and Funded Status

Summarized information about the funded status and the changes in plan assets and projected benefit obligation for the years ended December 31, 2013 and 2012 are as follows:

	Pension Benefits						Other Postretirement Benefits
(in millions)	2013			2012			2013			2012
Fair value of plan assets at beginning of year	$	207.5		$	—		$	—		$	—
Fair value of plan assets assumed in the Merger	—			217.0			—			—
Actual return on plan assets	15.3			7.0			—			—
Company contributions	—			6.1			0.4			0.5
Benefits paid	(43.4		)	(22.6		)	(0.4		)	(0.5		)
Fair value of plan assets at end of year	179.4			207.5			—			—
Projected benefit obligation at beginning of year	269.1			—			2.6			—
Benefit obligation assumed in the Merger	—			291.3			—			2.9
Interest cost	0.5			0.3			0.1			0.1
Actuarial (gains)/losses	(0.4		)	0.1			(0.2		)	0.1
Benefits paid	(43.4		)	(22.6		)	(0.4		)	(0.5		)
Projected benefit obligation at end of year	225.8			269.1			2.1			2.6
Underfunded status at end of year	$	46.4		$	61.6		$	2.1		$	2.6

Pension and Other Postretirement Benefits Liabilities

The pension and other postretirement benefits liabilities recognized at December 31, 2013 and 2012 are as follows:

	Pension Benefits				Other Postretirement Benefits
(in millions)	2013		2012		2013		2012
Accrued expenses	$	—	$	—	$	0.3	$	0.5
Other liabilities	46.4		61.6		1.8		2.1
Total pension and other postretirement liabilities	$	46.4	$	61.6	$	2.1	$	2.6

Weighted Average Assumptions Used in Determining Plan Information

Also, since both the pension and other postretirement benefit plans are frozen, a rate of compensation increase is not applicable.

	Other Postretirement Benefits
	2013		2012
Weighted-average assumptions used to determine benefit obligations at fiscal year-end:
Discount rate	3.39	%	2.48	%
Weighted-average assumptions used to determine net cost for the fiscal year ended:
Discount rate	2.52	%	3.30	%

Defined Benefit Plans Fair Value Plan Assets by Assets Category and Fair Value Hierarchy

The following table sets forth the target allocation for 2014 by asset class and the plan assets at fair value at December 31, 2013 and 2012 by level within the fair value hierarchy:

($ in millions) Asset Class	Target Allocation 2014(1)		Percent of Plan Assets at December 31, 2013		December 31, 2013		Level 1(2)(3)		Level 2(2)(4)			Level 3(2)(5)
Cash equivalents	2	%	2	%	$	3.3	$	—	$	3.3		$	—
U.S. equity securities	11	%	9	%
U.S. large-cap					11.0		—		11.0		(6)	—
U.S. small/mid-cap					4.7		—		4.7		(7)	—
International equity securities	12	%	15	%	27.9		—		27.9			—
Fixed income	47	%	45	%	80.6		—		80.6		(8)	—
Hedge funds(9)	23	%	24	%	42.9		—		—			42.9
Global real estate	5	%	5	%	9.0		—		9.0			—
Total			100	%	$	179.4	$	—	$	136.5		$	42.9

($ in millions) Asset Class	Percent of Plan Assets at December 31, 2012		December 31, 2012		Level 1(2)(3)		Level 2(2)(4)			Level 3(2)
U.S. equity securities	54	%
U.S. large-cap			$	60.3	$	—	$	60.3	(6)	$	—
U.S. small/mid-cap			51.1		27.9		23.2		(7)	—
International equity securities	15	%	31.1		31.1		—			—
Fixed income	31	%	65.0		30.8		34.2		(8)	—
Total	100	%	$	207.5	$	89.8	$	117.7		$	—

(1) The amounts disclosed reflect our target allocation based on the funded ratio of the plan at December 31, 2013 and are subject to change based on the funded ratio of the plan during the year.

(2) See Note 2 - Fair value measurements for a description of the fair value hierarchy.

(3) Investments classified as Level 1 are valued at the readily available quoted price from an active market where there is significant transparency in the executed quoted price. These investments consist of mutual funds valued at the net asset value of shares held by the pension plan at year-end.

(4) Assets classified as Level 2 include units held in common collective trust funds and mutual funds, which are valued based on the net asset values reported by the funds’ investment managers, and a short-term fixed income investment fund which is valued using other significant observable inputs such as quoted prices for comparable securities.

(5) The plan holds units of the a hedge fund offered through a private placement. The units are valued monthly using a net asset value (“NAV”). The hedge fund’s NAV is based on the fair value (reported NAVs) of each fund’s underlying fund investments and includes cash equivalents, and any accrued payables or receivables. Both the hedge fund and its underlying investments are priced using fair value pricing sources and techniques. The plan may redeem its shares quarterly at the stated NAV after a one year lock-up.

(6) Consists of common collective trusts that invest in common stock of S&P 500 companies and US large-cap common stock.

(7) Consists of a common collective trust that invests in US mid-cap common stock.

(8) Primarily consists of a common collective trust that invests in passive bond market index lending funds and a short-term investment fund.

(9) The inclusion of hedge funds serves to further diversify the fund and the volatility of the hedge fund portfolio returns are expected to be less than that of global equities.

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

es.

For measurements using significant unobservable inputs (Level 3) during 2013, a reconciliation of the beginning and ending balances is as follows:

(in millions)	Hedge Funds
Balance at beginning of year	$	—
Purchases	42.0
Unrealized gains	0.9
Balance at end of year	$	42.9

Estimated Future Benefit Payments

Estimated Future Benefit Payments. As of December 31, 2013, the following benefit payments are expected to be made (in millions):

Year Ended December 31,	Pension Benefits		Other Postretirement Benefits
2014	$	15.5	$	0.3
2015	14.1		0.3
2016	13.7		0.3
2017	13.3		0.2
2018	13.1		0.2
2019-2023	63.8		0.7

XML

Financing - Bridge, Five-Year Credit, Accounts Receivable Financing Facilities and Interest Rate Swaps - Additional Information (Detail) (USD $)				0 Months Ended	12 Months Ended		12 Months Ended		0 Months Ended		0 Months Ended
	Apr. 02, 2012 Senior Unsecured Revolving Credit Agreement [Member]	Dec. 31, 2004 7.250% senior notes due 2013 [Member]	Aug. 31, 2003 7.250% senior notes due 2013 [Member]	May 07, 2012 Interest Rate Swap [Member]	Dec. 31, 2004 Interest Rate Swap [Member] agreement	Dec. 31, 2013 Interest Rate Swap [Member]	Dec. 31, 2013 Bridge Facility [Member]	Aug. 05, 2011 Bridge Facility [Member]	Apr. 30, 2007 Senior Unsecured Term Loan [Member]	Apr. 02, 2012 Senior Unsecured Term Loan [Member]	Apr. 30, 2007 Senior Unsecured Revolving Credit Agreement [Member]	Dec. 31, 2012 Accounts Receivable Financing Facility [Member]	Dec. 31, 2012 Accounts Receivable Financing Facility [Member]
Debt Instrument [Line Items]
Debt term							1 year
Line of credit facility duration									5 years		5 years
Credit facility, maximum capacity	$ 1,000,000,000.0							$ 14,000,000,000	$ 1,000,000,000.0	$ 1,000,000,000.0	$ 2,000,000,000.0	$ 600,000,000
Amount drawn under revolving facility													0
Number of agreements					5
Maximum capacity of swap					200,000,000
Senior notes aggregate principal amount		500,000,000.0	500,000,000.0
Interest rate on debt instrument		7.25%	7.25%		7.25%
Principal redemption costs and interest					200,000,000
Weighted average spread						3.05%
Settlement of accrued interest receivables				10,100,000
Carrying amount of the swaps and bank fees				$ 1,500,000

XML

Condensed consolidating financial information

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed consolidating financial information

15. Condensed consolidating financial information

The senior notes issued by the Company, ESI and Medco are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed by certain of our 100% owned domestic subsidiaries, other than certain regulated subsidiaries, and, with respect to notes issued by ESI and Medco, by us. The following condensed consolidating financial information has been prepared in accordance with the requirements for presentation of such information. The condensed consolidating financial information presented below is not indicative of what the financial position, results of operations or cash flows would have been had each of the entities operated as an independent company during the period for various reasons, including, but not limited to, intercompany transactions and integration of systems.

In December 2012 we sold both our Liberty and EAV subsidiaries. In addition, during the fourth quarter of 2012, we determined that our European operations and portions of UBC met the criteria of discontinued operations. In June 2013 we sold the portion of our UBC business which primarily provided technology solutions and publications to biopharmaceutical companies, and in the third quarter of 2013 we sold the remaining portions of our UBC business that were classified as discontinued. In the fourth quarter of 2013, we sold our acute infusion therapies line of business. Consequently, the operations of EAV, our European operations, the portions of UBC operations that were sold, and our acute infusion therapies line of business are included as discontinued operations of the non-guarantors as of and for the year ended December 31, 2013 (through their respective dates of sale, as applicable), and as of December 31, 2012. Results for the year ended December 31, 2012 include the operations of Liberty, EAV, our European operations, UBC and our acute infusion therapies line of business subsequent to the date of the Merger, April 2, 2012 (revised to reflect the operations as discontinued operations as applicable). The following presentation reflects the structure that exists as of the most recent balance sheet date and also includes certain retrospective revisions to conform prior periods to current period presentation (discussed and presented in further detail below). The condensed consolidating financial information is presented separately for:

(i) Express Scripts (the Parent Company), the issuer of certain guaranteed obligations;

(ii) ESI, guarantor, the issuer of additional guaranteed obligations;

(iii) Medco, guarantor, the issuer of additional guaranteed obligations;

(iv) Guarantor subsidiaries, on a combined basis (but excluding ESI and Medco), as specified in the indentures related to Express Scripts’, ESI’s and Medco’s obligations under the notes;

(v) Non-guarantor subsidiaries, on a combined basis;

(vi) Consolidating entries and eliminations representing adjustments to (a) eliminate intercompany transactions between or among Express Scripts, ESI, Medco, the guarantor subsidiaries and the non-guarantor subsidiaries, (b) eliminate the investments in our subsidiaries and (c) record consolidating entries; and

(vii) Express Scripts and subsidiaries on a consolidated basis.

Certain amounts from prior periods have been revised to conform to current period presentation:

(i) With respect to the condensed consolidating balance sheet as of December 31, 2012, amounts related to the goodwill allocated to Medco Health Solutions, Inc. and certain of its guarantor and non-guarantor subsidiaries have changed as we finalized the purchase price allocation in the first quarter of 2013. The impact of the measurement period adjustment is to reallocate goodwill and intercompany amounts as follows:

(in millions)	Medco Health Solutions, Inc.			Guarantors			Non-guarantors			Eliminations
Intercompany assets	$	(2,040.0	)	$	2,000.5		$	—		$	39.5
Goodwill	$	2,040.0		$	(2,000.5	)	$	39.5		$	—
Intercompany liabilities	$	—		$	—		$	(39.5	)	$	39.5

Condensed Consolidating Balance Sheet
(in millions)	Express Scripts Holding Company		Express Scripts, Inc.		Medco Health Solutions, Inc.		Guarantors		Non- Guarantors		Eliminations			Consolidated
As of December 31, 2013
Cash and cash equivalents	$	—	$	1,145.9	$	3.6	$	44.0	$	797.9	$	—		$	1,991.4
Restricted cash and investments	—		—		1.0		—		21.8		—			22.8
Receivables, net	—		1,381.3		750.5		1,557.1		334.0		—			4,022.9
Other current assets	—		99.8		286.4		2,010.4		26.7		—			2,423.3
Current assets of discontinued operations	—		—		—		—		31.0		—			31.0
Total current assets	—		2,627.0		1,041.5		3,611.5		1,211.4		—			8,491.4
Property and equipment, net	—		550.3		5.4		1,082.7		20.5		—			1,658.9
Investments in subsidiaries	36,060.9		9,096.2		12,089.8		—		—		(57,246.9		)	—
Intercompany	—		—		—		14,247.9		—		(14,247.9		)	—
Goodwill	—		2,921.4		22,608.1		3,750.3		25.6		—			29,305.4
Other intangible assets, net	51.7		1,071.7		10,946.8		1,926.0		19.4		—			14,015.6
Other assets	—		79.9		16.5		3.9		12.2		(35.6		)	76.9
Total assets	$	36,112.6	$	16,346.5	$	46,708.1	$	24,622.3	$	1,289.1	$	(71,530.4	)	$	53,548.2
Claims and rebates payable	$	—	$	3,866.2	$	2,901.6	$	—	$	—	$	—		$	6,767.8
Accounts payable	—		875.1		62.7		1,834.9		127.3		—			2,900.0
Accrued expenses	45.3		455.9		241.0		615.5		624.5		—			1,982.2
Current maturities of long-term debt	1,583.9		0.1		—		—		—		—			1,584.0
Current liabilities of discontinued operations	—		—		—		—		1.3		—			1.3
Total current liabilities	1,629.2		5,197.3		3,205.3		2,450.4		753.1		—			13,235.3
Long-term debt	7,975.9		1,994.9		2,392.2		—		—		—			12,363.0
Intercompany	4,670.1		6,328.1		3,222.2		—		27.5		(14,247.9		)	—
Deferred taxes	—		—		4,034.7		1,386.4		19.5		—			5,440.6
Other liabilities	—		199.1		419.9		79.0		2.0		(35.6		)	664.4
Noncurrent liabilities of discontinued operations	—		—		—		—		0.1		—			0.1
Non-controlling interest	—		—		—		—		7.4		—			7.4
Express Scripts stockholders’ equity	21,837.4		2,627.1		33,433.8		20,706.5		479.5		(57,246.9		)	21,837.4
Total liabilities and stockholders’ equity	$	36,112.6	$	16,346.5	$	46,708.1	$	24,622.3	$	1,289.1	$	(71,530.4	)	$	53,548.2

Condensed Consolidating Balance Sheet
(in millions)	Express Scripts Holding Company		Express Scripts, Inc.		Medco Health Solutions, Inc.		Guarantors		Non- Guarantors		Eliminations			Consolidated
As of December 31, 2012
Cash and cash equivalents	$	—	$	2,346.6	$	—	$	126.9	$	319.6	$	—		$	2,793.1
Restricted cash and investments	—		—		—		1.0		18.6		—			19.6
Receivables, net	—		1,097.8		2,330.0		1,493.0		505.0		—			5,425.8
Other current assets	—		119.2		306.6		1,800.4		20.8		—			2,247.0
Current assets of discontinued operations	—		—		—		—		271.4		—			271.4
Total current assets	—		3,563.6		2,636.6		3,421.3		1,135.4		—			10,756.9
Property and equipment, net	—		305.7		—		1,307.2		19.2		—			1,632.1
Investments in subsidiaries	31,375.6		8,292.7		5,121.0		—		—		(44,789.3		)	—
Intercompany	2,189.0		—		926.8		6,127.2		—		(9,243.0		)	—
Goodwill	—		2,921.4		22,621.5		3,750.3		27.2		—			29,320.4
Other intangible assets, net	67.1		1,192.4		12,609.4		2,153.6		15.4		—			16,037.9
Other assets	—		57.4		14.4		5.9		4.7		(26.3		)	56.1
Noncurrent assets of discontinued operations	—		—		—		—		307.8		—			307.8
Total assets	$	33,631.7	$	16,333.2	$	43,929.7	$	16,765.5	$	1,509.7	$	(54,058.6	)	$	58,111.2
Claims and rebates payable	$	—	$	2,554.1	$	4,885.9	$	—	$	—	$	—		$	7,440.0
Accounts payable	—		477.5		—		2,284.5		136.9		—			2,898.9
Accrued expenses	62.9		428.3		327.8		612.0		201.9		—			1,632.9
Current maturities of long-term debt	631.6		0.1		303.2		—		—		—			934.9
Current liabilities of discontinued operations	—		—		—		—		150.7		—			150.7
Total current liabilities	694.5		3,460.0		5,516.9		2,896.5		489.5		—			13,057.4
Long-term debt	9,552.2		2,992.1		2,435.8		—		—		—			14,980.1
Intercompany	—		8,764.5		—		—		478.5		(9,243.0		)	—
Deferred taxes	—		—		5,074.7		861.8		—		—			5,936.5
Other liabilities	—		158.7		484.6		73.1		2.8		(26.3		)	692.9
Noncurrent liabilities of discontinued operations	—		—		—		—		48.6		—			48.6
Non-controlling interest	—		—		—		—		10.7		—			10.7
Express Scripts stockholders’ equity	23,385.0		957.9		30,417.7		12,934.1		479.6		(44,789.3		)	23,385.0
Total liabilities and stockholders’ equity	$	33,631.7	$	16,333.2	$	43,929.7	$	16,765.5	$	1,509.7	$	(54,058.6	)	$	58,111.2

Condensed Consolidating Statement of Operations
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2013
Revenues	$	—		$	29,927.9		$	52,736.8		$	23,273.8		$	1,517.7		$	(3,357.4	)	$	104,098.8
Operating expenses	—			28,380.5			52,498.3			21,988.0			1,037.7			(3,357.4		)	100,547.1
Operating income	—			1,547.4			238.5			1,285.8			480.0			—			3,551.7
Other (expense) income, net	(343.9		)	(148.8		)	(23.5		)	5.4			(10.6		)	—			(521.4		)
Income (loss) before income taxes	(343.9		)	1,398.6			215.0			1,291.2			469.4			—			3,030.3
Provision (benefit) for income taxes	(124.8		)	533.0			93.3			470.6			131.9			—			1,104.0
Net income (loss) from continuing operations	(219.1		)	865.6			121.7			820.6			337.5			—			1,926.3
Net loss from discontinued operations, net of tax	—			—			—			—			(53.6		)	—			(53.6		)
Equity in earnings of subsidiaries	2,063.7			803.5			272.9			—			—			(3,140.1		)	—
Net income	$	1,844.6		$	1,669.1		$	394.6		$	820.6		$	283.9		$	(3,140.1	)	$	1,872.7
Less: Net income attributable to non-controlling interest	—			—			—			—			28.1			—			28.1
Net income attributable to Express Scripts	1,844.6			1,669.1			394.6			820.6			255.8			(3,140.1		)	1,844.6
Other comprehensive loss, net of tax	(7.2		)	(7.2		)	—			—			(7.2		)	14.4			(7.2		)
Comprehensive income attributable to Express Scripts	$	1,837.4		$	1,661.9		$	394.6		$	820.6		$	248.6		$	(3,125.7	)	$	1,837.4
For the year ended December 31, 2012
Revenues	$	—		$	29,763.1		$	43,085.7		$	22,007.8		$	1,329.8		$	(2,472.1	)	$	93,714.3
Operating expenses	—			28,591.8			43,090.3			20,573.7			1,136.7			(2,472.1		)	90,920.4
Operating income	—			1,171.3			(4.6		)	1,434.1			193.1			—			2,793.9
Other (expense) income, net	(373.7		)	(180.1		)	(49.4		)	(2.2		)	11.9			—			(593.5		)
Income (loss) before income taxes	(373.7		)	991.2			(54.0		)	1,431.9			205.0			—			2,200.4
Provision (benefit) for income taxes	(142.1		)	449.6			(20.4		)	550.8			0.1			—			838.0
Net income (loss) from continuing operations	(231.6		)	541.6			(33.6		)	881.1			204.9			—			1,362.4
Net loss from discontinued operations, net of tax	—			—			—			—			(32.3		)	—			(32.3		)
Equity in earnings of subsidiaries	1,544.5			740.0			296.5			—			—			(2,581.0		)	—
Net income	$	1,312.9		$	1,281.6		$	262.9		$	881.1		$	172.6		$	(2,581.0	)	$	1,330.1
Less: Net income attributable to non-controlling interest	—			—			—			—			17.2			—			17.2
Net income attributable to Express Scripts	1,312.9			1,281.6			262.9			881.1			155.4			(2,581.0		)	1,312.9
Other comprehensive income, net of tax	1.9			1.9			—			—			1.9			(3.8		)	1.9
Comprehensive income attributable to Express Scripts	$	1,314.8		$	1,283.5		$	262.9		$	881.1		$	157.3		$	(2,584.8	)	$	1,314.8

Condensed Consolidating Statement of Operations
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.		Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2011
Revenues	$	—		$	29,450.9		$	—	$	16,520.3		$	157.1		$	—		$	46,128.3
Operating expenses	—			27,847.9			—		15,841.3			124.7			—			43,813.9
Operating income	—			1,603.0			—		679.0			32.4			—			2,314.4
Other (expense) income, net	(22.2		)	(259.8		)	—		(5.9		)	0.6			—			(287.3		)
Income (loss) before income taxes	(22.2		)	1,343.2			—		673.1			33.0			—			2,027.1
Provision (benefit) for income taxes	(8.1		)	487.9			—		263.8			5.0			—			748.6
Net income (loss) from continuing operations	(14.1		)	855.3			—		409.3			28.0			—			1,278.5
Equity in earnings of subsidiaries	1,289.9			434.6			—		—			—			(1,724.5		)	—
Net income	$	1,275.8		$	1,289.9		$	—	$	409.3		$	28.0		$	(1,724.5	)	$	1,278.5
Less: Net income attributable to non-controlling interest	—			—			—		—			2.7			—			2.7
Net income attributable to Express Scripts	1,275.8			1,289.9			—		409.3			25.3			(1,724.5		)	1,275.8
Other comprehensive loss, net of tax	(2.8		)	(2.8		)	—		—			(2.8		)	5.6			(2.8		)
Comprehensive income attributable to Express Scripts	$	1,273.0		$	1,287.1		$	—	$	409.3		$	22.5		$	(1,718.9	)	$	1,273.0

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2013
Net cash flows provided by (used in) operating activities	$	(214.1	)	$	2,731.3		$	765.9		$	556.0		$	929.1		$	(10.7	)	$	4,757.5
Cash flows from investing activities:
Purchases of property and equipment	—			(398.3		)	—			(16.5		)	(8.2		)	—			(423.0		)
Proceeds from the sale of business	—			1.6			—			355.3			—			—			356.9
Acquisitions, net of cash acquired	—			—			—			—			(14.5		)	—			(14.5		)
Other	—			14.0			—			—			(3.4		)	—			10.6
Net cash (used in) provided by investing activities—continuing operations	—			(382.7		)	—			338.8			(26.1		)	—			(70.0		)
Net cash used in investing activities—discontinued operations	—			—			—			—			(2.1		)	—			(2.1		)
Net cash (used in) provided by investing activities	—			(382.7		)	—			338.8			(28.2		)	—			(72.1		)
Cash flows from financing activities:
Treasury stock acquired	(4,055.2		)	—			—			—			—			—			(4,055.2		)
Repayment of long-term debt	(631.6		)	(1,000.0		)	(300.0		)	—			—			—			(1,931.6		)
Net proceeds from employee stock plans	466.0			—			—			—			—			—			466.0
Excess tax benefit relating to employee stock-based compensation	—			26.6			16.1			—			—			—			42.7
Distributions paid to non-controlling interest	—			—			—			—			(31.7		)	—			(31.7		)
Other	—			—			—			(13.0		)	28.0			—			15.0
Net intercompany transactions	4,434.9			(2,575.9		)	(478.4		)	(964.7		)	(415.9		)	—			—
Net cash (used in) provided by financing activities—continuing operations	214.1			(3,549.3		)	(762.3		)	(977.7		)	(419.6		)	—			(5,494.8		)
Net cash used in financing activities— discontinued operations	—			—			—			—			(10.7		)	10.7			—
Net cash (used in) provided by financing activities	214.1			(3,549.3		)	(762.3		)	(977.7		)	(430.3		)	10.7			(5,494.8		)
Effect of foreign currency translation adjustment	—			—			—			—			(5.7		)	—			(5.7		)
Less cash attributable to discontinued operations	—			—			—			—			13.4			—			13.4
Net (decrease) increase in cash and cash equivalents	—			(1,200.7		)	3.6			(82.9		)	478.3			—			(801.7		)
Cash and cash equivalents at beginning of year	—			2,346.6			—			126.9			319.6			—			2,793.1
Cash and cash equivalents at end of year	$	—		$	1,145.9		$	3.6		$	44.0		$	797.9		$	—		$	1,991.4

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations		Consolidated
For the year ended December 31, 2012
Net cash flows provided by (used in) operating activities	$	(147.3	)	$	655.1		$	3,355.4		$	916.7		$	1.7		$	—	$	4,781.6
Cash flows from investing activities:
Purchases of property and equipment	—			(70.0		)	—			(85.9		)	(4.3		)	—		(160.2		)
Proceeds from the sale of business	—			31.5			30.0			—			—			—		61.5
Acquisitions, net of cash acquired	(10,283.6		)	—			—			—			(42.4		)	—		(10,326.0		)
Other	—			(5.0		)	—			—			1.0			—		(4.0		)
Net cash (used in) provided by investing activities—continuing operations	(10,283.6		)	(43.5		)	30.0			(85.9		)	(45.7		)	—		(10,428.7		)
Acquisitions, cash acquired— discontinued operations	—			—			—			—			42.4			—		42.4
Net cash used in investing activities— discontinued operations	—			—			—			(3.8		)	(1.6		)	—		(5.4		)
Net cash (used in) provided by investing activities	(10,283.6		)	(43.5		)	30.0			(89.7		)	(4.9		)	—		(10,391.7		)
Cash flows from financing activities:
Repayment of long-term debt	(1,368.4		)	(1,000.1		)	(1,500.0		)	—			—			—		(3,868.5		)
Net proceeds from employee stock plans	295.2			—			30.8			—			—			—		326.0
Excess tax benefit relating to employee stock-based compensation	—			37.2			8.1			—			—			—		45.3
Distributions paid to non-controlling interest	—			—			—			—			(8.1		)	—		(8.1		)
Proceeds from long-term debt, net of discounts	7,458.9			—			—			—			—			—		7,458.9
Repayment of revolving credit line, net	—			—			(1,000.0		)	—			—			—		(1,000.0		)
Proceeds from accounts receivable financing facility	—			—			—			—			600.0			—		600.0
Repayment of accounts receivable financing facility	—			—			—			—			(600.0		)	—		(600.0		)
Deferred financing fees	(52.4		)	(50.8		)	—			—			—			—		(103.2		)
Net intercompany transactions	4,097.6			(2,773.5		)	(924.3		)	(705.5		)	305.7			—		—
Net cash provided by (used in) financing activities—continuing operations	10,430.9			(3,787.2		)	(3,385.4		)	(705.5		)	297.6			—		2,850.4
Net cash used in financing activities— discontinued operations	—			—			—			—			(26.8		)	—		(26.8		)
Net cash provided by (used in) financing activities	10,430.9			(3,787.2		)	(3,385.4		)	(705.5		)	270.8			—		2,823.6
Effect of foreign currency translation adjustment	—			—			—			—			2.0			—		2.0
Less cash attributable to discontinued operations	—			—			—			—			(42.5		)	—		(42.5		)
Net (decrease) increase in cash and cash equivalents	—			(3,175.6		)	—			121.5			227.1			—		(2,827.0		)
Cash and cash equivalents at beginning of year	—			5,522.2			—			5.4			92.5			—		5,620.1
Cash and cash equivalents at end of year	$	—		$	2,346.6		$	—		$	126.9		$	319.6		$	—	$	2,793.1

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.		Guarantors			Non- Guarantors			Eliminations		Consolidated
For the year ended December 31, 2011
Net cash flows provided by (used in) operating activities	$	(14.1	)	$	1,426.4		$	—	$	753.1		$	27.7		$	—	$	2,193.1
Cash flows from investing activities:
Purchases of property and equipment	—			(124.9		)	—		(13.4		)	(6.1		)	—		(144.4		)
Other	—			(1.0		)	—		1.3			20.2			—		20.5
Net cash (used in) provided by investing activities	—			(125.9		)	—		(12.1		)	14.1			—		(123.9		)
Cash flows from financing activities:
Treasury stock acquired	—			(2,515.7		)	—		—			—			—		(2,515.7		)
Repayment of long-term debt	—			(0.1		)	—		—			—			—		(0.1		)
Net proceeds from employee stock plans	—			32.2			—		—			—			—		32.2
Excess tax benefit relating to employee stock-based compensation	—			28.3			—		—			—			—		28.3
Distributions paid to non-controlling interest	—			—			—		—			(1.1		)	—		(1.1		)
Proceeds from long-term debt, net of discounts	4,086.3			1,494.0			—		—			—			—		5,580.3
Deferred financing fees	(29.2		)	(62.4		)	—		—			—			—		(91.6		)
Other	—			(2.9		)	—		—			—			—		(2.9		)
Net intercompany transactions	(4,043.0		)	4,791.6			—		(744.6		)	(4.0		)	—		—
Net cash provided by (used in) financing activities	14.1			3,765.0			—		(744.6		)	(5.1		)	—		3,029.4
Effect of foreign currency translation adjustment	—			—			—		—			(2.2		)	—		(2.2		)
Net increase (decrease) in cash and cash equivalents	—			5,065.5			—		(3.6		)	34.5			—		5,096.4
Cash and cash equivalents at beginning of year	—			456.7			—		9.0			58.0			—		523.7
Cash and cash equivalents at end of year	$	—		$	5,522.2		$	—	$	5.4		$	92.5		$	—	$	5,620.1

XML

Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Due Under Noncancellable Operating Leases

The future minimum lease payments, including interest, due under noncancellable leases, excluding the facilities of the discontinued operations of our held for sale entities of our European operations, are shown below (in millions):

Year Ended December 31,	Minimum Operating Lease Payments		Minimum Capital Lease Payments
2014	$	85.0	$	14.4
2015	61.1		14.4
2016	53.5		14.4
2017	42.6		0.2
2018	38.4		—
Thereafter	85.5		—
Total	$	366.1	$	43.4

Summary of Future Purchase Commitments

These future purchase commitments (in millions), excluding the facilities of the discontinued operations of our held for sale entities of our European operations, are summarized below:

Year Ended December 31,	Future Purchase Commitments
2014	$	425.3
2015	102.8
2016	57.3
2017	25.3
2018	—
Thereafter	—
Total	$	610.7

XML

Segment information - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenue from external customers (foreign)	$ 98.6	$ 77.1	$ 62.4
Foreign [Member]
Segment Reporting Information [Line Items]
Long-lived assets of international business (consisting primarily of fixed assets)	$ 58.6	$ 32.6
Minimum [Member]
Segment Reporting Information [Line Items]
Percentage of threshold revenue	10.00%	10.00%	10.00%

XML

Schedule - II - Valuation and Qualifying Accounts and Reserves of Continuing Operations

12 Months Ended

Dec. 31, 2013

Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts and Reserves of Continuing Operations

EXPRESS SCRIPTS HOLDING COMPANY

Schedule II — Valuation and Qualifying Accounts and Reserves of Continuing Operations

Years Ended December 31, 2013, 2012 and 2011

Col. A	Col. B		Col. C				Col. D		Col. E
(in millions)			Additions
Description	Balance at Beginning of Period		Charges to Costs and Expenses		Charges to Other Accounts		Deductions(1)		Balance at End of Period
Allowance for Doubtful Accounts Receivable
Year ended 12/31/11	$	64.8	$	11.6	$	—	$	20.8	$	55.6
Year ended 12/31/12	55.6		145.8		—		68.9		132.5
Year ended 12/31/13	132.5		115.7		—		46.0		202.2
Valuation Allowance for Deferred Tax Assets
Year ended 12/31/11	$	23.2	$	1.9	$	—	$	—	$	25.1
Year ended 12/31/12	25.1		4.2		6.1		—		35.4
Year ended 12/31/13	35.4		31.5		—		—		66.9

(1) Except as otherwise described, these deductions are primarily write-offs of receivable amounts, net of any recoveries.

XML

Financing - Schedule of Current Maturities for Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Debt Disclosure [Abstract]
Current Maturities, 2014	$ 1,584.3
Current Maturities, 2015	2,552.6
Current Maturities, 2016	3,013.2
Current Maturities, 2017	1,500.0
Current Maturities, 2018	1,200.0
Current Maturities, Thereafter	3,950.0
Total	$ 13,800.1

XML

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2010	$ 3,606.6	$ 6.9	$ 2,354.4	$ 19.8	$ 5,369.8	$ (4,144.3)	$ 0
Beginning Balance, shares at Dec. 31, 2010		690.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,278.5	0	0	0	1,275.8	0	2.7
Other comprehensive income (loss)	(2.8)	0	0	(2.8)	0	0	0
Treasury stock acquired	(2,515.7)	0	0	0	0	(2,515.7)	0
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes, shares		0.5
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes	(3.2)	0	(11.6)	0	0	8.4	0
Amortization of unearned compensation under employee plans	48.8	0	48.8	0	0	0	0
Exercise of stock options	35.9	0	18.3	0	0	17.6	0
Tax benefit relating to employee stock compensation	28.3	0	28.3	0	0	0	0
Distributions to non-controlling interest	(1.1)	0	0	0	0	0	(1.1)
Ending Balance at Dec. 31, 2011	2,475.3	6.9	2,438.2	17.0	6,645.6	(6,634.0)	1.6
Ending Balance, shares at Dec. 31, 2011		690.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,330.1	0	0	0	1,312.9	0	17.2
Other comprehensive income (loss)	1.9	0	0	1.9	0	0	0
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes, shares	13.2	14.1
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes	(104.7)	0.1	(104.8)	0	0	0	0
Amortization of unearned compensation under employee plans	410.0	0	410.0	0	0	0	0
Exercise of stock options	401.1	0	387.9	0	0	13.2	0
Tax benefit relating to employee stock compensation	45.3	0	45.3	0	0	0	0
Distributions to non-controlling interest	8.1	0	0	0	0	0	8.1
Cancellation of treasury shares in connection with Merger activity, shares		(204.7)
Cancellation of treasury shares in connection with Merger activity	0	(2.0)	(728.5)	0	(5,890.3)	6,620.8	0
Issuance of common shares in connection with Merger activity, shares		318.0
Issuance of common shares in connection with Merger activity	18,844.8	3.2	18,841.6	0	0	0	0
Ending Balance at Dec. 31, 2012	23,395.7	8.2	21,289.7	18.9	2,068.2	0	10.7
Ending Balance, shares at Dec. 31, 2012		818.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,872.7	0	0	0	1,844.6	0	28.1
Other comprehensive income (loss)	(7.2)	0	0	(7.2)	0	0	0
Treasury stock acquired	(4,055.2)	0	(149.9)	0	0	(3,905.3)	0
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes, shares	13.4	15.9
Common stock issued under employee plans, net of forfeitures and stock redeemed for taxes	(49.6)	0.1	(49.7)	0	0	0	0
Amortization of unearned compensation under employee plans	164.7	0	164.7	0	0	0	0
Exercise of stock options	524.0	0	524.0	0	0	0	0
Tax benefit relating to employee stock compensation	31.1	0	31.1	0	0	0	0
Distributions to non-controlling interest	(31.4)	0	0	0	0	0	(31.4)
Ending Balance at Dec. 31, 2013	$ 21,844.8	$ 8.3	$ 21,809.9	$ 11.7	$ 3,912.8	$ (3,905.3)	$ 7.4
Ending Balance, shares at Dec. 31, 2013		834.0

XML

CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Preferred stock, par value per share (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	15,000,000.0	15,000,000.0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value per share (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	2,985,000,000.0	2,985,000,000.0
Common stock, shares issued	834,000,000	818,100,000
Common stock, shares outstanding	773,600,000	818,100,000
Common stock in treasury at cost, shares	60,400,000	0

XML

Common stock

12 Months Ended

Dec. 31, 2013

Stockholders' Equity Note [Abstract]

Common stock

9. Common stock

Accelerated share repurchases. On December 9, 2013, as part of our 2013 Share Repurchase Program (as defined below), we entered into an agreement to repurchase shares of our common stock for an aggregate purchase price of $1,500.0 million (the “2013 ASR Program”) under an Accelerated Share Repurchase agreement (the “2013 ASR Agreement”). Under the terms of the 2013 ASR Agreement, upon payment of the purchase price, we received an initial delivery of 20.1 million shares of our common stock at a price of $67.16 per share, which represents, based on the closing share price of our common stock on Nasdaq on December 9, 2013, approximately 90% of the $1,500.0 million amount of the 2013 ASR Program. The final purchase price per share (the “forward price”) and the final number of shares received will be determined using the arithmetic mean of the daily volume-weighted average price of the Company’s common stock (the “VWAP”) over the term of the 2013 ASR Program less a discount granted under the ASR Agreement. The 2013 ASR Program will be completed in the second quarter of 2014, subject to the right of the investment bank to accelerate the settlement of the program.

Upon settlement of the 2013 ASR Program we may receive additional shares, including for the remaining 10% of the $1,500.0 million amount of the 2013 ASR Program, or we may be required to pay additional cash for the initial shares received or re-deliver shares (at our option), based on the forward price beginning after the effective date of the 2013 ASR Agreement and ending on or about May 5, 2014, subject to the right of the investment bank to accelerate settlement of the 2013 ASR Agreement. Under the terms of the contract, the maximum number of shares that could be delivered by us under the contract is 44.7 million. If the 2013 ASR Program had been settled as of December 31, 2013, based on the VWAP since the effective date of the agreement, the investment bank would have been required to deliver an additional 2.3 million shares to us. These shares are not included in the calculation of diluted weighted-average common shares outstanding during the period because their effect was anti-dilutive.

The 2013 ASR Agreement is accounted for as an initial treasury stock transaction and a forward stock purchase contract. We recorded this transaction as an increase to treasury stock of $1,350.1 million, and recorded the remaining $149.9 million as a decrease to additional paid-in capital in the consolidated balance sheet at December 31, 2013. The $149.9 million recorded in additional paid-in capital will be reclassified to treasury stock upon completion of the 2013 ASR Program. The forward stock purchase contract is classified as an equity instrument under applicable accounting guidance and was deemed to have a fair value of zero at the effective date of the 2013 ASR Agreement. The initial delivery of shares resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share on the effective date of the 2013 ASR Agreement.

On May 27, 2011, ESI entered into agreements to repurchase shares of its common stock for an aggregate purchase price of $1,750.0 million under an Accelerated Share Repurchase agreement (“2011 ASR Agreement”). The 2011 ASR Agreement consisted of two agreements, providing for the repurchase of shares of ESI’s common stock worth $1,000.0 million and $750.0 million, respectively. Upon payment of the purchase price on May 27, 2011, ESI received 29.4 million shares of ESI’s common stock at a price of $59.53 per share. During the third quarter of 2011, ESI settled the $1,000.0 million portion of the 2011 ASR Agreement and received 1.9 million shares at a final forward price of $53.51 per share. During the fourth quarter of 2011, ESI settled $725.0 million of the $750.0 million portion of the 2011 ASR Agreement and received 2.1 million shares at a weighted-average final forward price of $50.69. On April 27, 2012, ESI settled the remaining portion of the 2011 ASR Agreement and received 0.1 million additional shares, resulting in a total of 33.5 million shares received under the 2011 ASR Agreement.

The 2011 ASR Agreement was accounted for as an initial treasury stock transaction and a forward stock purchase contract. The forward stock purchase contract was classified as an equity instrument under applicable accounting guidance and was deemed to have a fair value of zero at the effective date. The initial repurchase of shares resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share on the effective date of the agreements. The remaining 4.0 million shares and 0.1 million shares received for the portions of the 2011 ASR Agreement that were settled during 2011 and 2012, respectively, reduced weighted-average common shares outstanding for the years ended December 31, 2011 and 2012, respectively.

Treasury share repurchases. Upon consummation of the Merger on April 2, 2012, all ESI shares held in treasury were no longer outstanding and were cancelled and retired and ceased to exist. Express Scripts eliminated the value of treasury shares, at cost, immediately prior to the Merger as a reduction to retained earnings and paid-in capital.

On March 6, 2013, the Board of Directors of Express Scripts approved a share repurchase program (the “2013 Share Repurchase Program”), authorizing the repurchase of up to 75.0 million shares (as adjusted for any subsequent stock split, stock dividend or similar transaction) of the Company’s common stock. There is no limit on the duration of the 2013 Share Repurchase Program.

Including the shares repurchased through the 2013 ASR Program, we repurchased 60.4 million shares for $3,905.3 million during the year ended December 31, 2013. Repurchases during the second quarter included 1.2 million shares of common stock for an aggregate purchase price of $68.4 million that were held on behalf of participants who acquired such shares upon the consummation of the Merger as a result of conversion of Medco shares previously held in Medco’s 401(k) plan. As previously announced, the Express Scripts 401(k) Plan no longer offers an investment fund option consisting solely of shares of Express Scripts common stock, and previously held shares were to be sold on or about the first anniversary of the Merger. This repurchase was not considered part of the 2013 Share Repurchase Program. As of December 31, 2013, there were 15.8 million shares remaining under the 2013 Share Repurchase Program, including shares repurchased under the 2013 ASR Program. Additional share repurchases, if any, will be made in such amounts and at such times as the Company deems appropriate based upon prevailing market and business conditions and other factors. Current year repurchases were funded through internally generated cash.

ESI had a stock repurchase program, originally announced on October 25, 1996. In addition to the shares repurchased through the 2011 ASR Agreement, ESI repurchased 13.0 million shares under its existing stock repurchase program during the second quarter of 2011 for $765.7 million.

Preferred share purchase rights. In July 2001, ESI’s Board of Directors adopted a stockholder rights plan which declared a dividend of one right for each outstanding share of ESI’s common stock. The rights plan expired on March 15, 2011 and no additional plan has been adopted by the Board of Directors.

XML

Quarterly financial data - Components of Quarterly Financial Data (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data [Abstract]
Retail pharmacy co-payments included in network revenues	$ 2,775.1	$ 2,966.5	$ 3,204.3	$ 3,674.4	$ 3,304.0	$ 3,348.9	$ 3,519.1	$ 1,496.6	$ 12,620.3	$ 11,668.6	$ 5,786.6

XML

Commitments and contingencies - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
	Jan. 02, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments And Contingencies Disclosure [Line Items]
Rental expense under office and distribution facilities leases		$ 83,800,000	$ 103,600,000	$ 30,200,000
Term of capital lease	4 years		4 years
Lease termination date		Dec. 31, 2016
Option price to purchase assets at lease termination date		1
Capital lease obligation		42,000,000
Percentage of pharmaceutical purchases from wholesaler		38.40%	39.30%	56.70%
Other risk		0
Client contractual dispute				$ 30,000,000
Minimum [Member]
Commitments And Contingencies Disclosure [Line Items]
Office and distribution facilities with remaining terms		1 year
Majority of our lease agreements		1 year
Maximum [Member]
Commitments And Contingencies Disclosure [Line Items]
Office and distribution facilities with remaining terms		10 years
Majority of our lease agreements		5 years
Purchases [Member] | Supplier Concentration Risk [Member]
Commitments And Contingencies Disclosure [Line Items]
Percentage of pharmaceutical purchases from wholesaler		47.00%

XML

Pension and other postretirement benefits Pension and other postretirement benefits - Hedge Funds Level 3 Rollforward (Details) (USD $) In Millions, unless otherwise specified								12 Months Ended
	Apr. 02, 2012	Dec. 31, 2013 Level 3 [Member]		Dec. 31, 2012 Level 3 [Member]		Dec. 31, 2013 Hedge Funds [Member] Level 3 [Member]		Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Hedge Funds [Member] Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 217.0	$ 42.9	[1],[2]	$ 0	[1]	$ 42.9	[1],[2],[3]	$ 0	[3]
Purchases								42.0	[3]
Unrealized gains								0.9	[3]
Fair value of plan assets at end of year	$ 217.0	$ 42.9	[1],[2]	$ 0	[1]	$ 42.9	[1],[2],[3]	$ 42.9	[3]

[1] See Note 2 - Fair value measurements for a description of the fair value hierarchy.

[2] The plan holds units of the a hedge fund offered through a private placement. The units are valued monthly using a net asset value (“NAV”). The hedge fund’s NAV is based on the fair value (reported NAVs) of each fund’s underlying fund investments and includes cash equivalents, and any accrued payables or receivables. Both the hedge fund and its underlying investments are priced using fair value pricing sources and techniques. The plan may redeem its shares quarterly at the stated NAV after a one year lock-up.

[3] The inclusion of hedge funds serves to further diversify the fund and the volatility of the hedge fund portfolio returns are expected to be less than that of global equi

XML

Document and Entity Information (USD $) Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Jan. 31, 2014	Jun. 28, 2013
Document Documentand Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Trading Symbol	ESRX
Entity Registrant Name	Express Scripts Holding Co.
Entity Central Index Key	0001532063
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		776,032
Entity Public Float			$ 50,173,343,223

XML

Employee benefit plans and stock-based compensation plans

12 Months Ended

Dec. 31, 2013

Employee Benefits and Share-based Compensation [Abstract]

Employee benefit plans and stock-based compensation plans

10. Employee benefit plans and stock-based compensation plans

Retirement savings plans. We sponsor retirement savings plans under Section 401(k) of the Internal Revenue Code for substantially all of our full-time employees. Upon consummation of the Merger, the Company assumed sponsorship of the plans historically sponsored by ESI (the “ESI 401(k) Plan”) and Medco (the “Medco 401(k) Plan”).

Effective January 1, 2013, the Medco 401(k) Plan merged into the ESI 401(k) Plan. The combined plan (the “Express Scripts 401(k) Plan”) is applicable to all full-time and part-time employees of the Company. Under the Express Scripts 401(k) Plan, eligible employees may elect to contribute up to 50% of their salary, and the Company matches up to 6% of the employees’ compensation contributed to the plan for substantially all employees after one year of service.

Prior to January 1, 2013, under the ESI 401(k) Plan, employees were able to elect to enter into a salary deferral agreement under which a maximum of 25% of their salary could be contributed to the plan. Under the Medco 401(k) Plan, employees were able to elect to contribute up to 50% of their salary. The Company matched 200% of the first 1% and 100% of the next 3% of the employees’ compensation contributed to the plan for substantially all employees under the ESI 401(k) Plan after one year of service. The Company matched up to 6% of the employees’ compensation contributed to the plan for substantially all employees under the Medco 401(k) Plan.

For the years ended December 31, 2013, 2012 and 2011, we had contribution expense of approximately $79.9 million, $67.6 million and $25.7 million, respectively. The increase for the year ended December 31, 2012 is the result of contributions to the Medco 401(k) Plan from the date of the Merger. Contributions under all plans are subject to aggregate limits required under the Internal Revenue Code.

Employee stock purchase plan. We offer an employee stock purchase plan that qualifies under Section 423 of the Internal Revenue Code and permits all domestic employees, excluding certain management level employees, to purchase shares of our common stock. Participating employees may contribute up to 10% of their salary to purchase common stock at the end of each monthly participation period at a purchase price equal to 95% of the fair market value of our common stock on the last business day of the participation period. During 2013, 2012 and 2011, approximately 289,000, 229,000 and 200,000 shares of our common stock were issued under the plan, respectively. Our common stock reserved for future employee purchases under the plan is approximately 1.9 million shares at December 31, 2013.

Deferred compensation plan. We maintain a non-qualified deferred compensation plan (the “Executive Deferred Compensation Plan”) that provides benefits payable to eligible key employees at retirement, termination or death. Benefit payments are funded by a combination of contributions from participants and us. Participants may elect to defer up to 50% of their base earnings and 100% of specific bonus awards. Participants become fully vested in our contributions on the third anniversary of the end of the plan year for which the contribution is credited to their account. For 2013, our contribution was equal to 6% of each qualified participant’s total annual compensation, with 25% being allocated as a hypothetical investment in our common stock and the remaining being allocated to a variety of investment options elected by the participants. We have chosen to fund our liability for this plan through investments in trading securities, which primarily consist of mutual funds (see Note 1 - Summary of significant accounting policies). We incurred net compensation expense of approximately $1.2 million, $1.0 million and $0.6 million in 2013, 2012 and 2011, respectively. At December 31, 2013, approximately 5.9 million shares of our common stock have been reserved for future issuance under the plan. We have $0.3 million and $0.2 million of unearned compensation related to unvested shares that are part of our deferred compensation plan at December 31, 2013 and 2012, respectively.

Stock-based compensation plans in general. In March 2011, ESI’s Board of Directors adopted the ESI 2011 Long-Term Incentive Plan (the “2011 LTIP”), which provides for the grant of various equity awards with various terms to our officers, directors and key employees selected by the Compensation Committee of the Board of Directors. The 2011 LTIP was approved by ESI’s stockholders in May 2011 and became effective June 1, 2011. Upon consummation of the Merger, the Company assumed sponsorship of the 2011 LTIP. Under the 2011 LTIP, we may issue stock options, stock-settled stock appreciation rights (“SSRs”), restricted stock units, restricted stock awards, performance share awards and other types of awards. The maximum number of shares available for awards under the 2011 LTIP is 30.0 million. The maximum term of stock options, SSRs, restricted stock units, restricted stock awards and performance shares granted under the 2011 LTIP is 10 years. As of December 31, 2013, approximately 22.6 million shares of our common stock are available for issuance under this plan.

Subsequent to the effective date of the 2011 LTIP, no additional awards have been or will be granted under the 2000 Long-Term Incentive Plan (the “2000 LTIP”), which provided for the grant of various equity awards with various terms to ESI’s officers, directors and key employees selected by the Compensation Committee. However, this plan is still in existence as there are outstanding grants under this plan. Under the 2000 LTIP, ESI issued stock options, SSRs, restricted stock units, restricted stock awards and performance share awards, which awards were converted into awards relating to Express Scripts common stock upon closing of the Merger. Prior to the Merger, awards were typically settled using treasury shares. Upon close of the Merger, treasury shares of ESI were cancelled and subsequent awards were settled by issuance of new shares. The maximum term of stock options, SSRs, restricted stock units, restricted stock awards and performance shares granted under the 2000 LTIP is 10 years.

The provisions of both the 2000 LTIP and 2011 LTIP allow employees to use shares to cover tax withholding on stock awards. Upon vesting of restricted stock and performance shares, employees have taxable income subject to statutory withholding requirements. The number of shares issued to employees may be reduced by the number of shares having a market value equal to our minimum statutory withholding for federal, state and local tax purposes.

The tax benefit related to employee stock compensation recognized during the years ended December 31, 2013, 2012 and 2011 was $60.0 million, $153.9 million and $17.7 million, respectively.

Effective upon the closing of the Merger, the Company assumed the sponsorship of the Medco Health Solutions, Inc. 2002 Stock Incentive Plan (the “2002 Stock Incentive Plan”), allowing Express Scripts to issue awards under this plan. As of December 31, 2013, 13.5 million shares are available under this plan. Under the Medco Health Solutions, Inc. 2002 Stock Incentive Plan, Medco granted, and, following the Merger, Express Scripts has granted and may continue to grant, stock options, restricted stock units and other types of awards to officers, employees and directors. Medco’s awards granted under the 2002 Stock Incentive Plan are subject to accelerated vesting upon change in control and termination.

As part of the consideration transferred in the Merger, Express Scripts issued 41.5 million replacement stock options to holders of Medco stock options, valued at $706.1 million, and 7.2 million replacement restricted stock units to holders of Medco restricted stock units, valued at $174.9 million. See Note 3 - Changes in business, for further discussion of valuation.

Restricted stock units and performance shares. Express Scripts grants restricted stock units to certain officers, directors and employees and performance shares to certain officers and employees. Express Scripts’ and ESI’s restricted stock units have three-year graded vesting and performance shares cliff vest at the end of three years. In 2011, 0.5 million restricted units were awarded which cliff vest two years from the closing date of the Merger (the “merger restricted shares”). In addition to the two-year service requirement, vesting of the merger restricted shares was contingent upon completion of the Merger. As this vesting condition did not meet probability thresholds indicated by authoritative accounting guidance, no expense was recorded for the merger restricted shares until consummation of the Merger. Prior to vesting, shares are subject to forfeiture to us without consideration upon termination of employment under certain circumstances. The number of performance shares that ultimately vest is dependent upon achieving specific performance targets. The original value of the performance share grants is subject to a multiplier of up to 2.5 based on certain performance metrics. Medco’s restricted stock units and performance shares granted under the 2002 Stock Incentive Plan prior to the Merger generally cliff vest over three years.

Unearned compensation relating to these awards is amortized to non-cash compensation expense over the estimated vesting periods. As of December 31, 2013 and 2012, unearned compensation related to restricted stock units and performance shares was $52.5 million and $99.4 million, respectively. We recorded pre-tax compensation expense related to restricted stock units and performance share grants of $87.4 million, $190.0 million and $13.9 million in 2013, 2012 and 2011, respectively. The fair value of restricted stock units vested during the years ended December 31, 2013, 2012 and 2011 was $136.7 million, $213.8 million and $20.9 million, respectively. The increase in pre-tax compensation expense and fair value of restricted shares vested for the year ended December 31, 2012 resulted from acceleration of stock-based compensation expense and award vesting associated with the termination of certain Medco employees following the Merger. The weighted-average remaining recognition period for restricted stock units and performance shares is 1.1 years.

A summary of the status of restricted stock units and performance shares as of December 31, 2013, and changes during the year ended December 31, 2013, is presented below.

	Shares (in millions)		Weighted-Average  Grant Date Fair Value Per Share
Outstanding at beginning of year	4.7		$	54.57
Granted	1.1		58.31
Other(1)	0.1		49.72
Released	(2.5	)	53.70
Forfeited/cancelled	(0.3	)	54.04
Outstanding at December 31, 2013	3.1		56.58
Vested and deferred at December 31, 2013	0.1		56.49
Non-vested at December 31, 2013	3.0		$	56.58

(1) Represents additional performance shares issued above the original value for exceeding certain performance metrics.

Stock options and SSRs. Express Scripts grants stock options and SSRs to certain officers, directors and employees to purchase shares of Express Scripts Holding Company common stock at fair market value on the date of grant. Express Scripts’ and ESI’s SSRs and stock options generally have three-year graded vesting, with the exception of 1.0 million awards granted during the fourth quarter of 2011 which cliff vest two years from the closing date of the Merger. Medco’s options granted under the 2002 Stock Incentive Plan generally vest on a graded basis over three years.

Due to the nature of the awards, we use the same valuation methods and accounting treatments for SSRs and stock options. As of December 31, 2013 and 2012, unearned compensation related to SSRs and stock options was $43.8 million and $74.4 million, respectively. We recorded pre-tax compensation expense related to SSRs and stock options of $77.3 million, $220.0 million and $34.6 million in 2013, 2012 and 2011, respectively. The increase for the year ended December 31, 2012 resulted from stock-based compensation expense acceleration associated with the termination of certain Medco employees. The weighted-average remaining recognition period for stock options and SSRs is 1.3 years.

A summary of the status of stock options and SSRs as of December 31, 2013, and changes during the year ended December 31, 2013, is presented below.

	Shares (in millions)		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life	Aggregate Intrinsic Value (in millions)(1)
Outstanding at beginning of year	44.2		$	40.71
Granted	3.3		58.34
Exercised	(14.6	)	37.56
Forfeited/cancelled	(1.0	)	54.11
Outstanding at end of period	31.9		43.56		5.3	$	852.3
Awards exercisable at period end	23.7		$	40.26	5.0	$	709.8

(1) Amount by which the market value of the underlying stock exceeds the exercise price of the option.

For the year ended December 31, 2013, the windfall tax benefit related to stock options exercised during the year was $42.7 million and is classified as a financing cash inflow on the consolidated statement of cash flows.

The fair value of options and SSRs granted is estimated on the date of grant using a Black-Scholes multiple option-pricing model with the following weighted-average assumptions:

	2013	2012	2011
Expected life of option	4-5 years	2-5 years	2-5 years
Risk-free interest rate	0.6%-1.7%	0.3%-0.9%	0.3%-2.2%
Expected volatility of stock	27%-37%	29%-38%	30%-39%
Expected dividend yield	None	None	None
Weighted-average volatility of stock	34.1%	35.5%	36.6%

The Black-Scholes model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. The expected term and forfeiture rate of options granted is derived from historical data on employee exercises and post-vesting employment termination behavior as well as expected behavior on outstanding options. The risk-free rate is based on the U.S. Treasury rates in effect during the corresponding period of grant. The expected volatility is based on the historical volatility of our stock price. These factors could change in the future, which would affect the stock-based compensation expense in future periods.

Cash proceeds, intrinsic value related to total stock options exercised, and weighted-average fair value of stock options granted during the years ended December 31, 2013, 2012 and 2011 are provided in the following table:

(in millions, except per share data)	2013		2012		2011
Proceeds from stock options exercised	$	524.0	$	401.1	$	35.9
Intrinsic value of stock options exercised	362.0		359.6		82.8
Weighted-average fair value per share of options granted during the year	$	17.17	$	15.13	$	14.74

XML

Employee benefit plans and stock-based compensation plans - Status of Restricted Stock Units and Performance Shares (Detail) (Restricted Stock Units and Performance Shares [Member], USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Restricted Stock Units and Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of year (shares)	4.7
Granted (shares)	1.1
Other (shares)	0.1	[1]
Released (shares)	(2.5)
Forfeited/Cancelled (shares)	(0.3)
Express Scripts outstanding at end of year (shares)	3.1
Express Scripts vested and deferred at December 31, 2013 (shares)	0.1
Vested and deferred shares at December 31, 2013 (shares)	3.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-Average Grant Date Fair Value, ESI Outstanding (usd per share)	$ 54.57
Weighted-Average Grant Date Fair Value, Granted (usd per share)	$ 58.31
Weighted-Average Grant Date Fair Value, Other (usd per share)	$ 49.72	[1]
Weighted Average Grant Date Fair Value, Released (usd per share)	$ 53.70
Weighted Average Grant Date Fair Value, Forfeited/Cancelled (usd per share)	$ 54.04
Weighted Average Grant Date Fair Value, Outstanding at end of period (usd per share)	$ 56.58
Weighted Average Grant Date Fair Value, Vested and deferred at December 31,2013 (usd per share)	$ 56.49
Weighted-Average Grant Date Fair Value, Non-vested at December 31, 2013 (usd per share)	$ 56.58

[1] Represents additional performance shares issued above the original value for exceeding certain performance metrics.

XML

Pension and other postretirement benefits - Defined Benefit Plans Fair Value Plan Assets by Assets Category and Fair Value Hierarchy (Detail) (USD $) In Millions, unless otherwise specified				12 Months Ended					12 Months Ended			12 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Apr. 02, 2012	Dec. 31, 2013 Cash Equivalents [Member]		Dec. 31, 2013 U.S. equity securities [Member]		Dec. 31, 2012 U.S. equity securities [Member]	Dec. 31, 2013 International equity securities [Member]		Dec. 31, 2012 International equity securities [Member]	Dec. 31, 2013 Fixed Income [Member]		Dec. 31, 2012 Fixed Income [Member]	Dec. 31, 2013 Hedge Funds [Member]		Dec. 31, 2013 Real Estate [Member]		Dec. 31, 2013 Level 1 [Member]		Dec. 31, 2012 Level 1 [Member]		Dec. 31, 2013 Level 1 [Member] Cash Equivalents [Member]		Dec. 31, 2013 Level 1 [Member] U.S. large-cap [Member]		Dec. 31, 2012 Level 1 [Member] U.S. large-cap [Member]		Dec. 31, 2013 Level 1 [Member] U.S. small/mid-cap [Member]		Dec. 31, 2012 Level 1 [Member] U.S. small/mid-cap [Member]		Dec. 31, 2013 Level 1 [Member] International equity securities [Member]		Dec. 31, 2012 Level 1 [Member] International equity securities [Member]		Dec. 31, 2013 Level 1 [Member] Fixed Income [Member]		Dec. 31, 2012 Level 1 [Member] Fixed Income [Member]		Dec. 31, 2013 Level 1 [Member] Hedge Funds [Member]		Dec. 31, 2013 Level 1 [Member] Real Estate [Member]		Dec. 31, 2013 Level 2 [Member]		Dec. 31, 2012 Level 2 [Member]		Dec. 31, 2013 Level 2 [Member] Cash Equivalents [Member]		Dec. 31, 2013 Level 2 [Member] U.S. large-cap [Member]		Dec. 31, 2012 Level 2 [Member] U.S. large-cap [Member]		Dec. 31, 2013 Level 2 [Member] U.S. small/mid-cap [Member]		Dec. 31, 2012 Level 2 [Member] U.S. small/mid-cap [Member]		Dec. 31, 2013 Level 2 [Member] International equity securities [Member]		Dec. 31, 2012 Level 2 [Member] International equity securities [Member]		Dec. 31, 2013 Level 2 [Member] Fixed Income [Member]		Dec. 31, 2012 Level 2 [Member] Fixed Income [Member]		Dec. 31, 2013 Level 2 [Member] Hedge Funds [Member]		Dec. 31, 2013 Level 2 [Member] Real Estate [Member]		Dec. 31, 2013 Level 3 [Member]		Dec. 31, 2012 Level 3 [Member]		Dec. 31, 2013 Level 3 [Member] Cash Equivalents [Member]		Dec. 31, 2013 Level 3 [Member] U.S. large-cap [Member]		Dec. 31, 2012 Level 3 [Member] U.S. large-cap [Member]		Dec. 31, 2013 Level 3 [Member] U.S. small/mid-cap [Member]		Dec. 31, 2012 Level 3 [Member] U.S. small/mid-cap [Member]		Dec. 31, 2013 Level 3 [Member] International equity securities [Member]		Dec. 31, 2012 Level 3 [Member] International equity securities [Member]		Dec. 31, 2013 Level 3 [Member] Fixed Income [Member]		Dec. 31, 2012 Level 3 [Member] Fixed Income [Member]		Dec. 31, 2013 Level 3 [Member] Hedge Funds [Member]		Dec. 31, 2013 Level 3 [Member] Real Estate [Member]		Dec. 31, 2013 Estimate of Fair Value Measurement [Member]	Dec. 31, 2012 Estimate of Fair Value Measurement [Member]	Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Cash Equivalents [Member]	Dec. 31, 2013 Estimate of Fair Value Measurement [Member] U.S. large-cap [Member]	Dec. 31, 2012 Estimate of Fair Value Measurement [Member] U.S. large-cap [Member]	Dec. 31, 2013 Estimate of Fair Value Measurement [Member] U.S. small/mid-cap [Member]	Dec. 31, 2012 Estimate of Fair Value Measurement [Member] U.S. small/mid-cap [Member]	Dec. 31, 2013 Estimate of Fair Value Measurement [Member] International equity securities [Member]	Dec. 31, 2012 Estimate of Fair Value Measurement [Member] International equity securities [Member]	Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Fixed Income [Member]	Dec. 31, 2012 Estimate of Fair Value Measurement [Member] Fixed Income [Member]	Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Hedge Funds [Member]		Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Allocation				2.00%	[1]	11.00%	[1]		12.00%	[1]		47.00%	[1]		23.00%	[1],[2]	5.00%	[1]
Percent of Plan Assets	100.00%	100.00%		2.00%		9.00%		54.00%	15.00%		15.00%	45.00%		31.00%	24.00%	[2]	5.00%
Plan assets at fair value			$ 217.0																$ 0	[3],[4]	$ 89.8	[3],[4]	$ 0	[3],[4]	$ 0	[3],[4]	$ 0	[3],[4]	$ 0	[3],[4]	$ 27.9	[3],[4]	$ 0	[3],[4]	$ 31.1	[3],[4]	$ 0	[3],[4]	$ 30.8	[3],[4]	$ 0	[2],[3],[4]	$ 0	[3],[4]	$ 136.5	[3],[5]	$ 117.7	[3],[5]	$ 3.3	[3],[5]	$ 11.0	[3],[5],[6]	$ 60.3	[3],[5],[6]	$ 4.7	[3],[5],[7]	$ 23.2	[3],[5],[7]	$ 27.9	[3],[5]	$ 0	[3],[5]	$ 80.6	[3],[5],[8]	$ 34.2	[3],[5],[8]	$ 0	[2],[3],[5]	$ 9.0	[3],[5]	$ 42.9	[3],[9]	$ 0	[3]	$ 0	[3],[9]	$ 0	[3],[9]	$ 0	[3]	$ 0	[3],[9]	$ 0	[3]	$ 0	[3],[9]	$ 0	[3]	$ 0	[3],[9]	$ 0	[3]	$ 42.9	[2],[3],[9]	$ 0	[3],[9]	$ 179.4	$ 207.5	$ 3.3	$ 11.0	$ 60.3	$ 4.7	$ 51.1	$ 27.9	$ 31.1	$ 80.6	$ 65.0	$ 42.9	[2]	$ 9.0

[1] The amounts disclosed reflect our target allocation based on the funded ratio of the plan at December 31, 2013 and are subject to change based on the funded ratio of the plan during the year.

[2] The inclusion of hedge funds serves to further diversify the fund and the volatility of the hedge fund portfolio returns are expected to be less than that of global equi

[3] See Note 2 - Fair value measurements for a description of the fair value hierarchy.

[4] Investments classified as Level 1 are valued at the readily available quoted price from an active market where there is significant transparency in the executed quoted price. These investments consist of mutual funds valued at the net asset value of shares held by the pension plan at year-end.

[5] Assets classified as Level 2 include units held in common collective trust funds and mutual funds, which are valued based on the net asset values reported by the funds’ investment managers, and a short-term fixed income investment fund which is valued using other significant observable inputs such as quoted prices for comparable securities.

[6] Consists of common collective trusts that invest in common stock of S&P 500 companies and US large-cap common stock

[7] Consists of a common collective trust that invests in US mid-cap common stoc

[8] Primarily consists of a common collective trust that invests in passive bond market index lending funds and a short-term investment fu

[9] The plan holds units of the a hedge fund offered through a private placement. The units are valued monthly using a net asset value (“NAV”). The hedge fund’s NAV is based on the fair value (reported NAVs) of each fund’s underlying fund investments and includes cash equivalents, and any accrued payables or receivables. Both the hedge fund and its underlying investments are priced using fair value pricing sources and techniques. The plan may redeem its shares quarterly at the stated NAV after a one year lock-up.

XML

CONSOLIDATED STATEMENT OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Income Statement [Abstract]
Revenues	$ 25,781.4	[1],[2]	$ 25,915.6	[1],[2]	$ 26,381.9	[1],[2]	$ 26,019.9	[1],[2]	$ 27,365.1	[1],[2]	$ 26,761.6	[1],[2]	$ 27,455.0	[1],[2],[3]	$ 12,132.6	[1],[2],[3]	$ 104,098.8	[4]	$ 93,714.3	[4]	$ 46,128.3	[4]
Cost of revenues	23,720.4	[1],[2]	23,921.4	[1],[2]	24,266.8	[1],[2]	24,057.8	[1],[2]	25,067.4	[1],[2]	24,658.7	[1],[2]	25,375.7	[1],[2],[3]	11,300.6	[1],[2],[3]	95,966.4	[4]	86,402.4	[4]	42,918.4	[4]
Gross profit	2,061.0	[2]	1,994.2	[2]	2,115.1	[2]	1,962.1	[2]	2,297.7	[2]	2,102.9	[2]	2,079.3	[2],[3]	832.0	[2],[3]	8,132.4		7,311.9		3,209.9
Selling, general and administrative	1,232.2	[2]	1,118.7	[2]	1,110.8	[2]	1,119.0	[2]	1,390.8	[2]	1,282.2	[2]	1,579.9	[2],[3]	265.1	[2],[3]	4,580.7		4,518.0		895.5
Operating income	828.8	[2]	875.5	[2]	1,004.3	[2]	843.1	[2]	906.9	[2]	820.7	[2]	499.4	[2],[3]	566.9	[2],[3]	3,551.7		2,793.9		2,314.4
Other (expense) income:
Equity income from joint venture																	32.8		14.9		0
Interest income																	41.9		10.6		12.4
Interest expense and other																	(596.1)		(619.0)		(299.7)
Total other (expense) income																	(521.4)		(593.5)		(287.3)
Income before taxes																	3,030.3		2,200.4		2,027.1
Provision for income taxes																	1,104.0		838.0		748.6
Net income (loss) from continuing operations	518.3	[2]	453.6	[2]	574.4	[2]	380.0	[2]	524.1	[2]	415.9	[2]	152.2	[2],[3]	270.2	[2],[3]	1,926.3		1,362.4		1,278.5
Net loss from discontinued operations, net of tax	(12.3)	[2]	(15.5)	[2]	(23.9)	[2]	(1.9)	[2]	(13.1)	[2]	(20.0)	[2]	0.8	[2],[3]	0	[2],[3]	(53.6)		(32.3)		0
Net income	506.0	[2]	438.1	[2]	550.5	[2]	378.1	[2]	511.0	[2]	395.9	[2]	153.0	[2],[3]	270.2	[2],[3]	1,872.7		1,330.1		1,278.5
Less: Net income attributable to non-controlling interest	4.1	[2]	11.4	[2]	7.5	[2]	5.1	[2]	6.9	[2]	4.5	[2]	3.4	[2],[3]	2.4	[2],[3]	28.1		17.2		2.7
Net income attributable to Express Scripts	501.9	[2]	426.7	[2]	543.0	[2]	373.0	[2]	504.1	[2]	391.4	[2]	149.6	[2],[3]	267.8	[2],[3]	1,844.6		1,312.9		1,275.8
Weighted-average number of common shares outstanding during the period:
Basic (shares)																	808.6	[5]	731.3		500.9
Diluted (shares)																	821.6	[5],[6]	747.3	[6]	505.0	[6]
Basic earnings (loss) per share:
Continuing operations attributable to Express Scripts (usd per share)	$ 0.65	[2]	$ 0.55	[2]	$ 0.70	[2]	$ 0.46	[2]	$ 0.63	[2]	$ 0.51	[2]	$ 0.18	[2],[3]	$ 0.55	[2],[3]	$ 2.35		$ 1.84		$ 2.55
Discontinued operations attributable to Express Scripts (usd per share)	$ (0.02)	[2]	$ (0.02)	[2]	$ (0.03)	[2]	$ 0.00	[2]	$ (0.02)	[2]	$ (0.02)	[2]	$ 0.00	[2],[3]	$ 0.00	[2],[3]	$ (0.07)		$ (0.04)		$ 0.00
Net earnings attributable to Express Scripts (usd per share)	$ 0.63	[2]	$ 0.53	[2]	$ 0.67	[2]	$ 0.46	[2]	$ 0.62	[2]	$ 0.48	[2]	$ 0.19	[2],[3]	$ 0.55	[2],[3]	$ 2.28		$ 1.80		$ 2.55
Diluted earnings (loss) per share:
Continuing operations attributable to Express Scripts (usd per share)	$ 0.64	[2]	$ 0.54	[2]	$ 0.68	[2]	$ 0.45	[2]	$ 0.62	[2]	$ 0.50	[2]	$ 0.18	[2],[3]	$ 0.55	[2],[3]	$ 2.31		$ 1.80		$ 2.53
Discontinued operations attributable to Express Scripts (usd per share)	$ (0.02)	[2]	$ (0.02)	[2]	$ (0.03)	[2]	$ 0.00	[2]	$ (0.02)	[2]	$ (0.02)	[2]	$ 0.00	[2],[3]	$ 0.00	[2],[3]	$ (0.07)		$ (0.04)		$ 0.00
Net earnings attributable to Express Scripts (usd per share)	$ 0.63	[2]	$ 0.52	[2]	$ 0.66	[2]	$ 0.45	[2]	$ 0.61	[2]	$ 0.47	[2]	$ 0.18	[2],[3]	$ 0.55	[2],[3]	$ 2.25		$ 1.76		$ 2.53
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	514.2	[2]	442.2	[2]	566.9	[2]	374.9	[2]	517.2	[2]	411.4	[2]	148.8	[2],[3]	267.8	[2],[3]	1,898.2		1,345.2		1,275.8
Net loss from discontinued operations, net of tax	(12.3)	[2]	(15.5)	[2]	(23.9)	[2]	(1.9)	[2]	(13.1)	[2]	(20.0)	[2]	0.8	[2],[3]	0	[2],[3]	(53.6)		(32.3)		0
Net income attributable to Express Scripts	$ 501.9	[2]	$ 426.7	[2]	$ 543.0	[2]	$ 373.0	[2]	$ 504.1	[2]	$ 391.4	[2]	$ 149.6	[2],[3]	$ 267.8	[2],[3]	$ 1,844.6		$ 1,312.9		$ 1,275.8

[1] Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

[2] Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

[3] Includes the April 2, 2012 acquisition of Medco.

[4] Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

[5] 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.

[6] 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.

XML

Dispositions

12 Months Ended

Dec. 31, 2013

Discontinued Operations and Disposal Groups [Abstract]

Dispositions

4. Dispositions

During 2012 and 2013, we determined various businesses were no longer core to our future operations and committed to a plan to dispose of these businesses. As a result, during 2013 we sold our acute infusion therapies line of business and various portions of our UBC line of business and during 2012 we sold EAV, Liberty and CYC. In accordance with applicable accounting guidance, we have also determined our European operations to be classified as held for sale. Prior to the sales of our acute infusion therapies line of business, EAV and Liberty, goodwill and intangible impairment charges were recorded. Below is a summary of 2013 and 2012 charges associated with these businesses and the impact to our consolidated statement of operations:

	December 31, 2013					December 31, 2012
(in millions)	Gain recorded upon sale		Goodwill & Intangible Impairments			Gain recorded upon sale		Goodwill & Intangible Impairments
EAV	$	—	$	—		$	3.7	$	(11.5	)
Disposed UBC operations
Technology solutions and publications for biopharmaceutical companies	18.3		—			—		—
Health economics, outcomes research, data analytics and market access services	11.4		—			—		—
Specialty services for pre-market trials	22.1		—			—		—
Acute infusion therapies line of business	0.5		(32.9		)	—		—
Recorded in net loss from discontinued operations, net of tax	$	52.3	$	(32.9	)	$	3.7	$	(11.5	)
Liberty	$	—	$	—		$	0.5	$	(23.0	)
CYC(1)	3.5		—			14.3		—
Recorded in selling, general and administrative	$	3.5	$	—		$	14.8	$	(23.0	)
Total disposition charges	$	55.8	$	(32.9	)	$	18.5	$	(34.5	)

(1) Reflects the settlement of certain working capital balances in 2013.

Sale of our acute infusion therapies line of business. On November 1, 2013, we completed the sale of our acute infusion therapies line of business, which was included within our PBM segment before being classified as a discontinued operation as of September 30, 2013. During the fourth quarter of 2013, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $0.5 million. The gain is included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2013.

In 2013, in connection with entering into an agreement for the sale of the business, an impairment in the value of the related goodwill was identified. The impairment charge, which totaled $32.9 million, was recorded and reflects goodwill impairment and the subsequent write-down to fair market value. The fair value was determined utilizing the contracted sales price of the business (Level 2). The impairment charge is included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2013.

Sale of portions of UBC. On August 15, 2013, we completed the sale of the portion of our UBC business related to specialty services for pre-market trials located in Wayne, Pennsylvania. During the third quarter of 2013, we recognized a gain on the sale of this business which totaled $22.1 million. 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 located in Bethesda, Maryland. During the third quarter of 2013, we recognized a gain on the sale of this business which totaled $11.4 million. On June 7, 2013, we completed the sale of the portion of our UBC business which primarily provided technology solutions and publications for biopharmaceutical companies located in Horsham, United Kingdom. During the second quarter of 2013, we recognized a gain on the sale of this business which totaled $18.3 million. The gains on these businesses are included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2013. Our disposed UBC operations were included within our Other Business Operations segment before being classified as discontinued operations as of December 31, 2012.

Sale of EAV. On December 4, 2012, we completed the sale of our EAV line of business, which primarily provided home delivery pharmacy services in Germany. During the fourth quarter of 2012, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $3.7 million. The gain is included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2012. Prior to being classified as a discontinued operation, EAV was included in our Other Business Operations segment.

In 2012, the Company determined it was necessary to reassess carrying values of EAV’s assets and liabilities based on a change in business environment related to an adverse court ruling by the German high court in August 2012 and the expected disposal of EAV as a result of the ruling (Level 2). Based on the assessment, we recorded impairment charges associated with this line of business totaling $11.5 million to reflect the write-down of $2.0 million of goodwill and $9.5 million of intangible assets. These charges are included in the “Net loss from discontinued operations, net of tax” line item in the accompanying consolidated statement of operations for the year ended December 31, 2012.

Sale of Liberty. On December 3, 2012, we completed the sale of our Liberty line of business, which is included within our Other Business Operations segment. Liberty sells diabetes testing supplies and is located in Port St. Lucie, Florida. Following the sale, Express Scripts will work as a back-end pharmacy supplier for portions of the Liberty business for a minimum of two years. Therefore, the Company retains certain cash flows associated with Liberty following the sale which preclude classification of this business as a discontinued operation. During the fourth quarter of 2012, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $0.5 million. The gain is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2012.

In 2012, as a result of our plan to dispose of Liberty, an impairment charge totaling $23.0 million was recorded against intangible assets. The fair value was determined utilizing the contracted sales price of the business (Level 2). This charge is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2012. The write-down was comprised of impairments to customer relationships with a carrying value of $24.2 million and trade names with a carrying value of $6.6 million.

From the date of Merger through the date of disposal, Liberty’s revenue totaled $323.9 million and operating loss totaled $32.3 million. As Liberty was sold in 2012, no associated assets or liabilities were held as of December 31, 2012.

Sale of CYC. On September 14, 2012, we completed the sale of our CYC line of business, which is included within our Other Business Operations segment. Upon completion of the sale, we recognized a gain on the sale of this business, net of the sale of its assets, which totaled $14.3 million. The gain is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2012. During the first quarter of 2013, certain working capital balances were settled, resulting in a $3.5 million gain. The gain is included in the SG&A line item in the accompanying consolidated statement of operations for the year ended December 31, 2013.

We determined that the results of operations for CYC for 2012 and 2011 were immaterial to both consolidated and segment results of operations, and we have therefore not presented these results separately as discontinued operations for the current or prior periods. Operating income (loss), including the gain associated with the sale, totaled $14.7 million and less than $(0.1) million for the years ended December 31, 2012 and 2011, respectively. Total assets for CYC as of December 31, 2011 were $36.9 million. The majority of these assets represented goodwill of $12.0 million and cash of $14.9 million. As these amounts represented less than 0.1% of total consolidated assets, the assets were not classified as held for sale within the consolidated balance sheet.

Held for sale classification of Europe. During the fourth quarter of 2012, we determined that our operations in Europe, which were included within our Other Business Operations segment, were not core to our future operations and committed to a plan to dispose of this business. As a result, this business was classified as discontinued as of December 31, 2012. Our European operations primarily consisted of clinical and specialty pharmacy management services. It is expected that our European operations will be shut down in the first half of 2014.

Select financial information. The results of operations for our acute infusion therapies line of business, portions of UBC, as defined above, EAV and our European operations are reported as discontinued operations for all periods presented in the accompanying consolidated statement of operations in accordance with applicable accounting guidance. As such, results of operations for the year ended December 31, 2013 and 2012 reflect these operations as discontinued. As the discontinued operations were acquired through the Merger, results of operations for the period beginning January 1, 2012 through April 1, 2012 do not include these operations in our accompanying consolidated statement of operations. Additionally, for all periods presented, cash flows of our discontinued operations are segregated in our accompanying consolidated statement of cash flows. Finally, assets and liabilities of these businesses held were segregated in our accompanying consolidated balances sheet as of December 31, 2013 and 2012. The major components of assets and liabilities of these discontinued operations are as follows:

	December 31,
(in millions)	2013		2012
Current assets	$	31.0	$	271.4
Goodwill	—		127.9
Other intangible assets, net	—		157.4
Other assets	—		22.5
Total assets	$	31.0	$	579.2
Current liabilities	$	1.3	$	150.7
Deferred taxes	—		44.9
Other liabilities	0.1		3.7
Total liabilities	$	1.4	$	199.3

Select statement of operations information. Certain information with respect to discontinued operations, as defined above, for the years ended December 31, 2013 and 2012 is summarized below. There were no discontinued operations for the year ended December 31, 2011.

(in millions)	2013			2012
Revenues	$	521.2		$	702.3
Operating loss	(24.9		)	(22.7		)
Income tax expense from discontinued operations	(28.7		)	(7.5		)
Net loss from discontinued operations, net of tax	$	(53.6	)	$	(32.3	)

XML

Changes in business

12 Months Ended

Dec. 31, 2013

Business Combinations [Abstract]

Changes in business

3. Changes in business

Acquisitions. As a result of the Merger on April 2, 2012, Medco and ESI each became 100% owned subsidiaries of Express Scripts and former Medco and ESI stockholders became owners of Express Scripts stock, which is listed on the Nasdaq. Upon closing of the Merger, former ESI stockholders owned approximately 59% of Express Scripts and former Medco stockholders owned approximately 41% of Express Scripts. Per the terms of the Merger Agreement, upon consummation of the Merger on April 2, 2012, each share of Medco common stock was converted into (i) the right to receive $28.80 in cash, without interest and (ii) 0.81 shares of Express Scripts stock. Holders of Medco stock options, restricted stock units and deferred stock units received replacement awards at an exchange ratio of 1.3474 Express Scripts stock awards for each Medco award owned, which is equal to the sum of (i) 0.81 and (ii) the quotient obtained by dividing (1) $28.80 (the cash component of the Merger consideration) by (2) an amount equal to the average of the closing prices of ESI common stock on the Nasdaq for each of the 15 consecutive trading days ending with the fourth complete trading day prior to the completion of the Merger.

Based on the opening price of Express Scripts’ stock on April 2, 2012, the purchase price was comprised of the following:

(in millions)
Cash paid to Medco stockholders(1)	$	11,309.6
Value of shares of common stock issued to Medco stockholders(2)	17,963.8
Value of stock options issued to holders of Medco stock options(3)(4)	706.1
Value of restricted stock units issued to holders of Medco restricted stock units(3)	174.9
Total consideration	$	30,154.4

(1) Equals Medco outstanding shares multiplied by $28.80 per share.

(2) Equals Medco outstanding shares immediately prior to the Merger multiplied by the exchange ratio of 0.81, multiplied by the Express Scripts opening share price on April 2, 2012 of $56.49.

(3) In accordance with applicable accounting guidance, the fair value of replacement awards attributable to pre-combination service is recorded as part of the consideration transferred in the Merger, while the fair value of replacement awards attributable to post-combination service is recorded separately from the business combination and recognized as compensation cost in the post-acquisition period over the remaining service period.

(4) The fair value of the Company’s equivalent stock options was estimated using the Black-Scholes valuation model utilizing various assumptions. The expected volatility of the Company’s common stock price is a blended rate based on the average historical volatility over the expected term based on daily closing stock prices of ESI and Medco common stock. The expected term of the option is based on Medco historical employee stock option exercise behavior as well as the remaining contractual exercise term.

The consolidated statement of operations for Express Scripts for the year ended December 31, 2012 following consummation of the Merger on April 2, 2012 includes Medco’s total revenues for continuing operations of $45,763.5 million and net income of $290.7 million, which includes integration expense and amortization.

The following unaudited pro forma information presents a summary of Express Scripts’ combined results of continuing operations for the years ended December 31, 2012 and 2011 as if the Merger and related financing transactions had occurred at January 1, 2011. The following pro forma financial information is not necessarily indicative of the results of operations as it would have been had the transactions been effected on the assumed date, nor is it necessarily an indication of trends in future results for a number of reasons, including, but not limited to, differences between the assumptions used to prepare the pro forma information, basic shares outstanding and dilutive equivalents, cost savings from operating efficiencies, potential synergies and the impact of incremental costs incurred in integrating the businesses:

	Year Ended December 31,
(in millions, except per share data)	2012		2011
Total revenues	$	109,639.2	$	115,463.4
Net income attributable to Express Scripts	1,345.5		719.8
Basic earnings per share from continuing operations	1.69		0.88
Diluted earnings per share from continuing operations	$	1.66	$	0.87

Pro forma net income for the year ended December 31, 2011 includes total non-recurring amounts of $1,192.2 million related to severance payments, accelerated stock-based compensation and transaction and integration costs incurred in connection with the Merger.

The Merger was accounted for under the acquisition method of accounting with ESI treated as the acquirer for accounting purposes. The purchase price was allocated based on the estimated fair value of net assets acquired and liabilities assumed at the date of the acquisition.

During the first quarter ended March 31, 2013, the Company made refinements to its preliminary allocation of purchase price related to accrued liabilities due to the finalization of assumptions utilized to value the liabilities acquired. These adjustments had the effect of increasing current assets and other noncurrent liabilities and decreasing goodwill, deferred tax liabilities and current liabilities.

Express Scripts finalized the purchase price allocation and push down accounting as of March 31, 2013. The following table summarizes Express Scripts’ estimates of the fair values of the assets acquired and liabilities assumed in the Merger:

(in millions)	Amounts Recognized as of Acquisition Date
Current assets	$	6,934.9
Property and equipment	1,390.6
Goodwill	23,965.6
Acquired intangible assets	16,216.7
Other noncurrent assets	48.3
Current liabilities	(8,966.4		)
Long-term debt	(3,008.3		)
Deferred income taxes	(5,875.2		)
Other noncurrent liabilities	(551.8		)
Total	$	30,154.4

A portion of the excess of purchase price over tangible net assets acquired was allocated to intangible assets consisting of customer contracts in the amount of $15,935.0 million with an estimated weighted-average amortization period of 16 years. Additional intangible assets consist of trade names in the amount of $273.0 million with an estimated weighted-average amortization period of 10 years and miscellaneous intangible assets of $8.7 million with an estimated weighted-average amortization period of 5 years. The acquired intangible assets have been valued using an income approach and are being amortized on a basis that approximates the pattern of benefit.

The excess of purchase price over tangible net assets and identified intangible assets acquired was allocated to goodwill in the amount of $23,965.6 million. The majority of the goodwill recognized as part of the Merger is reported under our PBM segment and reflects our expected synergies from combining operations, such as improved economies of scale and cost savings. Goodwill recognized is not expected to be deductible for income tax purposes and is not amortized.

As a result of the Merger on April 2, 2012, we acquired the receivables of Medco. The gross contractual amounts receivable and fair value of these receivables as of the acquisition date are shown below. Of the gross amounts due under the contracts as of the date of acquisition, we estimated $43.6 million related to client accounts receivables to be uncollectible.

(in millions)	Gross Contractual Amounts Receivable		Fair Value
Manufacturer Accounts Receivables	$	1,895.2	$	1,895.2
Client Accounts Receivables	2,432.2		2,388.6
Total	$	4,327.4	$	4,283.8

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 and have recorded equity income of $32.8 million and $14.9 million for the years ended December 31, 2013 and 2012, respectively. Our investment in Surescripts (approximately $30.2 million and $11.9 million as of December 31, 2013 and 2012, respectively) is recorded in “Other assets” in our consolidated balance sheet.

XML

Quarterly financial data

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data [Abstract]

Quarterly financial data

14. Quarterly financial data (unaudited)

The following is a presentation of our unaudited quarterly financial data:

	Quarters
(in millions, except per share data)	First			Second			Third			Fourth
Fiscal 2013(1)
Total revenues(2)	$	26,019.9		$	26,381.9		$	25,915.6		$	25,781.4
Cost of revenues(2)	24,057.8			24,266.8			23,921.4			23,720.4
Gross profit	1,962.1			2,115.1			1,994.2			2,061.0
Selling, general and administrative	1,119.0			1,110.8			1,118.7			1,232.2
Operating income	843.1			1,004.3			875.5			828.8
Net income from continuing operations	380.0			574.4			453.6			518.3
Net loss from discontinued operations, net of tax	(1.9		)	(23.9		)	(15.5		)	(12.3		)
Net income	$	378.1		$	550.5		$	438.1		$	506.0
Less: Net income attributable to non-controlling interest	5.1			7.5			11.4			4.1
Net income attributable to Express Scripts	373.0			543.0			426.7			501.9
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts	$	0.46		$	0.70		$	0.55		$	0.65
Discontinued operations attributable to Express Scripts	—			(0.03		)	(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.46			0.67			0.53			0.63
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts	$	0.45		$	0.68		$	0.54		$	0.64
Discontinued operations attributable to Express Scripts	—			(0.03		)	(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.45			0.66			0.52			0.63
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	374.9		$	566.9		$	442.2		$	514.2
Discontinued operations, net of tax	(1.9		)	(23.9		)	(15.5		)	(12.3		)
Net income attributable to Express Scripts shareholders	$	373.0		$	543.0		$	426.7		$	501.9

	Quarters
(in millions, except per share data)	First		Second(3)		Third			Fourth
Fiscal 2012(1)
Total revenues(2)	$	12,132.6	$	27,455.0	$	26,761.6		$	27,365.1
Cost of revenues(2)	11,300.6		25,375.7		24,658.7			25,067.4
Gross profit	832.0		2,079.3		2,102.9			2,297.7
Selling, general and administrative	265.1		1,579.9		1,282.2			1,390.8
Operating income	566.9		499.4		820.7			906.9
Net income from continuing operations	270.2		152.2		415.9			524.1
Net income (loss) from discontinued operations, net of tax	—		0.8		(20.0		)	(13.1		)
Net income	$	270.2	$	153.0	$	395.9		$	511.0
Less: Net income attributable to non-controlling interest	2.4		3.4		4.5			6.9
Net income attributable to Express Scripts	267.8		149.6		391.4			504.1
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts	$	0.55	$	0.18	$	0.51		$	0.63
Discontinued operations attributable to Express Scripts	—		—		(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.55		0.19		0.48			0.62
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts	$	0.55	$	0.18	$	0.50		$	0.62
Discontinued operations attributable to Express Scripts	—		—		(0.02		)	(0.02		)
Net earnings attributable to Express Scripts	0.55		0.18		0.47			0.61
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	$	267.8	$	148.8	$	411.4		$	517.2
Discontinued operations, net of tax	—		0.8		(20.0		)	(13.1		)
Net income attributable to Express Scripts shareholders	$	267.8	$	149.6	$	391.4		$	504.1

(1) Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

(2) Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

(3) Includes the April 2, 2012 acquisition of Medco.

XML

Pension and other postretirement benefits

12 Months Ended

Dec. 31, 2013

Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]

Pension and other post-retirement benefits

11. Pension and other post-retirement benefits

Net pension and postretirement benefit cost. In connection with the Merger, Express Scripts assumed sponsorship of Medco’s pension and other post-retirement benefit obligations, which were re-measured and recorded at fair value on the date of the Merger.

For the pension plans, Express Scripts has elected to determine the projected benefit obligation as the value of the benefits to which employees would be entitled if they separated from service immediately. Under this approach, the liability is equal to the employee’s account value as of the measurement date. After re-measurement upon the Merger consummation, the fair value of the projected benefit obligation was $291.3 million and the plan assets at fair value totaled $217.0 million, representing an underfunded status and resulting in a balance sheet liability of $74.3 million.

In January 2011, Medco amended its defined benefit pension plans, freezing the benefit for all participants effective in the first quarter of 2011. After the plan freeze, participants no longer accrue any benefits under the plans, and the plans have been closed to new entrants since February 28, 2011. However, account balances continue to be credited with interest until paid.

Medco’s unfunded postretirement healthcare benefit plan was discontinued for all active non-retirement eligible employees in January 2011.

For the years ended December 31, 2013 and 2012, the net benefit for the Company’s pension plan consisted of the following components:

	Year Ended December 31,
(in millions)	2013			2012
Interest cost	$	0.5		$	0.3
Actual return on plan assets	(15.3		)	(7.0		)
Net actuarial (gain)/loss	(0.4		)	0.1
Net benefit	$	(15.2	)	$	(6.6	)

For the years ended December 31, 2013 and 2012, the net (benefit) cost for the Company’s other postretirement benefit plan consisted of the following components:

	Year Ended December 31,
(in millions)	2013			2012
Interest cost	$	0.1		$	0.1
Net actuarial (gain)/loss	(0.2		)	0.1
Net (benefit) cost	$	(0.1	)	$	0.2

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. Net actuarial gains and losses are recorded into net income in the period incurred.

Changes in plan assets, benefit obligation and funded status. Summarized information about the funded status and the changes in plan assets and projected benefit obligation for the years ended December 31, 2013 and 2012 are as follows:

	Pension Benefits						Other Postretirement Benefits
(in millions)	2013			2012			2013			2012
Fair value of plan assets at beginning of year	$	207.5		$	—		$	—		$	—
Fair value of plan assets assumed in the Merger	—			217.0			—			—
Actual return on plan assets	15.3			7.0			—			—
Company contributions	—			6.1			0.4			0.5
Benefits paid	(43.4		)	(22.6		)	(0.4		)	(0.5		)
Fair value of plan assets at end of year	179.4			207.5			—			—
Projected benefit obligation at beginning of year	269.1			—			2.6			—
Benefit obligation assumed in the Merger	—			291.3			—			2.9
Interest cost	0.5			0.3			0.1			0.1
Actuarial (gains)/losses	(0.4		)	0.1			(0.2		)	0.1
Benefits paid	(43.4		)	(22.6		)	(0.4		)	(0.5		)
Projected benefit obligation at end of year	225.8			269.1			2.1			2.6
Underfunded status at end of year	$	46.4		$	61.6		$	2.1		$	2.6

As a result of the plan freeze, the accumulated benefit obligation and the projected benefit obligation amounts for the defined benefit pension plan are equal at December 31, 2013 and 2012.

The pension and other postretirement benefits liabilities recognized at December 31, 2013 and 2012 are as follows:

	Pension Benefits				Other Postretirement Benefits
(in millions)	2013		2012		2013		2012
Accrued expenses	$	—	$	—	$	0.3	$	0.5
Other liabilities	46.4		61.6		1.8		2.1
Total pension and other postretirement liabilities	$	46.4	$	61.6	$	2.1	$	2.6

Actuarial assumptions. The Company has elected an accounting policy that measures the pension plan’s benefit obligation as if participants were to separate immediately. As a result, a discount rate is not used to value the pension benefit obligation. Also, since both the pension and other postretirement benefit plans are frozen, a rate of compensation increase is not applicable.

	Other Postretirement Benefits
	2013		2012
Weighted-average assumptions used to determine benefit obligations at fiscal year-end:
Discount rate	3.39	%	2.48	%
Weighted-average assumptions used to determine net cost for the fiscal year ended:
Discount rate	2.52	%	3.30	%

Our return on plan assets is calculated based on the actual fair value of plan assets. We recognize actual gains and losses on pension plan assets immediately in our operating results. Amounts are recorded each period based on estimates, and adjusted annually when actual results of the plan are measured at December 31^st.

For the other postretirement benefit plan, the discount rate is determined annually and is evaluated and modified to reflect, at the end of our fiscal year, the prevailing market rate of a portfolio of high-quality corporate bond investments that would provide the future cash flows needed to settle benefit obligations as they come due.

Future costs of the amended postretirement benefit healthcare plan are being capped based on 2004 costs. As a result, employer liability is not affected by healthcare cost trend. Additionally, the salary growth rate assumption is not applicable for determination of the benefit obligation at December 31, 2013 and 2012 as a result of the plan freeze.

Pension plan assets. The Company believes the oversight of the investments held under its pension plans is rigorous and the investment strategies are prudent. Beginning in 2013, we have adopted a dynamic asset allocation policy. The intent of this policy is to allocate funds to investments with lower expected risk profiles as the funded ratio of the pension plan improves. The investment objectives of the Company’s qualified pension plan are designed to provide liquidity to meet benefit payments and expenses payable from the plan to offer a reasonable probability of achieving asset growth to reduce the underfunded status of the plan and to manage the plan’s assets in a liability framework. The precise amount for which the benefit obligations will be settled depends on future events, including interest rates and the life expectancy of the plan’s members. The obligations are estimated using actuarial assumptions based on the current economic environment.

The following table sets forth the target allocation for 2014 by asset class and the plan assets at fair value at December 31, 2013 and 2012 by level within the fair value hierarchy:

($ in millions) Asset Class	Target Allocation 2014(1)		Percent of Plan Assets at December 31, 2013		December 31, 2013		Level 1(2)(3)		Level 2(2)(4)			Level 3(2)(5)
Cash equivalents	2	%	2	%	$	3.3	$	—	$	3.3		$	—
U.S. equity securities	11	%	9	%
U.S. large-cap					11.0		—		11.0		(6)	—
U.S. small/mid-cap					4.7		—		4.7		(7)	—
International equity securities	12	%	15	%	27.9		—		27.9			—
Fixed income	47	%	45	%	80.6		—		80.6		(8)	—
Hedge funds(9)	23	%	24	%	42.9		—		—			42.9
Global real estate	5	%	5	%	9.0		—		9.0			—
Total			100	%	$	179.4	$	—	$	136.5		$	42.9

($ in millions) Asset Class	Percent of Plan Assets at December 31, 2012		December 31, 2012		Level 1(2)(3)		Level 2(2)(4)			Level 3(2)
U.S. equity securities	54	%
U.S. large-cap			$	60.3	$	—	$	60.3	(6)	$	—
U.S. small/mid-cap			51.1		27.9		23.2		(7)	—
International equity securities	15	%	31.1		31.1		—			—
Fixed income	31	%	65.0		30.8		34.2		(8)	—
Total	100	%	$	207.5	$	89.8	$	117.7		$	—

(1) The amounts disclosed reflect our target allocation based on the funded ratio of the plan at December 31, 2013 and are subject to change based on the funded ratio of the plan during the year.

(2) See Note 2 - Fair value measurements for a description of the fair value hierarchy.

(3) Investments classified as Level 1 are valued at the readily available quoted price from an active market where there is significant transparency in the executed quoted price. These investments consist of mutual funds valued at the net asset value of shares held by the pension plan at year-end.

(4) Assets classified as Level 2 include units held in common collective trust funds and mutual funds, which are valued based on the net asset values reported by the funds’ investment managers, and a short-term fixed income investment fund which is valued using other significant observable inputs such as quoted prices for comparable securities.

(5) The plan holds units of the a hedge fund offered through a private placement. The units are valued monthly using a net asset value (“NAV”). The hedge fund’s NAV is based on the fair value (reported NAVs) of each fund’s underlying fund investments and includes cash equivalents, and any accrued payables or receivables. Both the hedge fund and its underlying investments are priced using fair value pricing sources and techniques. The plan may redeem its shares quarterly at the stated NAV after a one year lock-up.

(6) Consists of common collective trusts that invest in common stock of S&P 500 companies and US large-cap common stock.

(7) Consists of a common collective trust that invests in US mid-cap common stock.

(8) Primarily consists of a common collective trust that invests in passive bond market index lending funds and a short-term investment fund.

(9) The inclusion of hedge funds serves to further diversify the fund and the volatility of the hedge fund portfolio returns are expected to be less than that of global equities.

For measurements using significant unobservable inputs (Level 3) during 2013, a reconciliation of the beginning and ending balances is as follows:

(in millions)	Hedge Funds
Balance at beginning of year	$	—
Purchases	42.0
Unrealized gains	0.9
Balance at end of year	$	42.9

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement.

Cash flows.

Employer Contributions. Under the current actuarial assumptions, there is no minimum contribution required for the 2013 plan year. The Company does not expect to contribute any cash payments during 2014.

Estimated Future Benefit Payments. As of December 31, 2013, the following benefit payments are expected to be made (in millions):

Year Ended December 31,	Pension Benefits		Other Postretirement Benefits
2014	$	15.5	$	0.3
2015	14.1		0.3
2016	13.7		0.3
2017	13.3		0.2
2018	13.1		0.2
2019-2023	63.8		0.7

XML

Employee benefit plans and stock-based compensation plans - Summary of Cash Proceeds Fair Value of Vested Shares Intrinsic Value Related to Total Stock Options Exercised and Weighted Average Fair Value of Stock Options Granted (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Arrangements with Employees and Nonemployees [Abstract]
Proceeds from stock options exercised	$ 524.0	$ 401.1	$ 35.9
Intrinsic value of stock options exercised	$ 362.0	$ 359.6	$ 82.8
Weighted-average fair value per share of options granted during the year (usd per share)	$ 17.17	$ 15.13	$ 14.74

XML

Financing

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Financing

7. Financing

The Company’s debt, net of unamortized discounts and premiums, consists of:

	December 31,
(in millions)	2013		2012
Long-term debt:
March 2008 Senior Notes
7.125% senior notes due 2018	$	1,378.5	$	1,417.2
6.125% senior notes due 2013	—		303.3
	1,378.5		1,720.5
June 2009 Senior Notes
6.250% senior notes due 2014	—		998.7
7.250% senior notes due 2019	497.9		497.6
	497.9		1,496.3
September 2010 Senior Notes
2.750% senior notes due 2015	506.9		510.9
4.125% senior notes due 2020	506.8		507.6
	1,013.7		1,018.5
May 2011 Senior Notes
3.125% senior notes due 2016	1,497.0		1,495.8
November 2011 Senior Notes
3.500% senior notes due 2016	1,249.8		1,249.7
4.750% senior notes due 2021	1,241.2		1,240.3
2.750% senior notes due 2014	899.7		899.4
6.125% senior notes due 2041	698.4		698.4
	4,089.1		4,087.8
February 2012 Senior Notes
2.650% senior notes due 2017	1,490.7		1,487.9
2.100% senior notes due 2015	998.1		996.5
3.900% senior notes due 2022	981.9		980.0
	3,470.7		3,464.4
Term facility due August 29, 2016 with an average interest rate of 1.92% at December 31, 2013 and 1.96% at December 31, 2012	2,000.0		2,631.6
Other	0.1		0.1
Total debt	13,947.0		15,915.0
Less: Current maturities of long-term debt	1,584.0		934.9
Total long-term debt	$	12,363.0	$	14,980.1

BANK CREDIT FACILITIES

On August 29, 2011, ESI entered into a credit agreement (the “credit agreement”) with a commercial bank syndicate providing for a five-year $4,000.0 million term loan facility (the “term facility”) and a $1,500.0 million revolving loan facility (the “revolving facility”). The term facility was used to pay a portion of the cash consideration in connection with the Merger (as discussed in Note 3 - Changes in business), to repay existing indebtedness and to pay related fees and expenses. Subsequent to consummation of the Merger on April 2, 2012, the revolving facility is available for general corporate purposes. The term facility and the revolving facility both mature on August 29, 2016. As of December 31, 2013, no amounts were drawn under the revolving facility. The Company makes quarterly principal payments on the term facility. Additionally, during the fourth quarter of 2012, the Company paid down $1,000.0 million of the term facility. As of December 31, 2013, $2,000.0 million was outstanding under the term facility with an average interest rate of 1.92%, of which $684.2 million is considered current maturities of long-term debt. Upon consummation of the Merger, Express Scripts assumed the obligations of ESI and became the borrower under the credit agreement.

The credit agreement requires interest to be paid at the LIBOR or adjusted base rate options, plus a margin. The margin over LIBOR ranges from 1.25% to 1.75% for the term facility and 1.10% to 1.55% for the revolving facility, and the margin over the base rate options ranges from 0.25% to 0.75% for the term facility and 0.10% to 0.55% for the revolving facility, depending on our consolidated leverage ratio. Under the credit agreement, we are required to pay commitment fees on the unused portion of the $1,500.0 million revolving facility. The commitment fee ranges from 0.15% to 0.20% depending on our consolidated leverage ratio.

BRIDGE FACILITY

On August 5, 2011, ESI entered into a credit agreement with Credit Suisse AG, Cayman Islands Branch, as administrative agent, Citibank, N.A., as syndication agent, and the other lenders and agents named within the agreement. The credit agreement provided for a one-year unsecured $14,000.0 million bridge term loan facility (the “bridge facility”). No amounts were withdrawn under the bridge facility, and subsequent to consummation of the Merger on April 2, 2012, the bridge facility was terminated.

FIVE-YEAR CREDIT FACILITY

On April 30, 2007, Medco entered into a senior unsecured credit agreement, which was available for general working capital requirements. The facility consisted of a $1,000.0 million, 5-year senior unsecured term loan and a $2,000.0 million, 5-year senior unsecured revolving credit facility. The facility was due to mature on April 30, 2012. Medco refinanced the $2,000.0 million senior unsecured revolving credit facility on January 23, 2012. Upon completion of the Merger, the $1,000.0 million senior unsecured term loan and all associated interest, and the $1,000.0 million then outstanding under the senior unsecured revolving credit facility, were repaid in full and terminated.

ACCOUNTS RECEIVABLE FINANCING FACILITY

Upon consummation of the Merger, Express Scripts assumed a $600.0 million, 364-day renewable accounts receivable financing facility that was collateralized by Medco’s pharmaceutical manufacturer rebates accounts receivable. On September 21, 2012, Express Scripts terminated the facility and repaid all amounts drawn down.

INTEREST RATE SWAP

Medco entered into five interest rate swap agreements in 2004. These swap agreements, in effect, converted $200.0 million of Medco’s $500.0 million of 7.250% senior notes due 2013 to variable interest rate debt. Under the terms of these swap agreements, Medco received a fixed rate of interest of 7.250% on $200.0 million and paid variable interest rates based on the six-month LIBOR plus a weighted-average spread of 3.05%. The payment dates under the agreements coincided with the interest payment dates on the hedged debt instruments and the difference between the amounts paid and received was included in interest expense. These swaps were settled on May 7, 2012. Express Scripts received $10.1 million for settlement of the swaps and the associated accrued interest receivable through May 7, 2012, and recorded a loss of $1.5 million related to the carrying amount of the swaps and bank fees.

SENIOR NOTES

Following the consummation of the Merger on April 2, 2012, several series of senior notes issued by Medco are reported as debt obligations of Express Scripts on a consolidated basis.

In August 2003, Medco issued $500.0 million aggregate principal amount of 7.250% senior notes due 2013 (the “August 2003 Senior Notes”). On May 7, 2012, the Company redeemed the August 2003 Senior Notes. These notes were redeemable at a redemption price equal to the greater of (i) 100% of the principal amount of the notes being redeemed, or (ii) the sum of the present values of 107.25% of the principal amount of these notes being redeemed, plus all scheduled payments of interest on the notes discounted to the redemption date at a semi-annual equivalent yield to a comparable U.S. Treasury security for such redemption date plus 50 basis points. Total cash payments related to these notes were $549.4 million comprised of principal, redemption costs and interest.

On March 18, 2008, Medco issued $1,500.0 million of senior notes (the “March 2008 Senior Notes”), including:

• $300.0 million aggregate principal amount of 6.125% senior notes due 2013

• $1,200.0 million aggregate principal amount of 7.125% senior notes due 2018

The March 2008 Senior Notes require interest to be paid semi-annually on March 15 and September 15. On March 18, 2013, $300.0 million aggregate principal amount of 6.125% senior notes due 2013 matured and were redeemed. We may redeem some or all of the remaining March 2008 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 50 basis points with respect to any March 2008 Senior Notes being redeemed, plus, in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The March 2008 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior basis by us and most of our current and future 100% owned domestic subsidiaries. Medco used the net proceeds to reduce debts held on Medco’s revolving credit facility.

On June 9, 2009, ESI issued $2,500.0 million of senior notes (the “June 2009 Senior Notes”), including:

• $1,000.0 million aggregate principal amount of 5.250% senior notes due 2012

• $1,000.0 million aggregate principal amount of 6.250% senior notes due 2014

• $500.0 million aggregate principal amount of 7.250% senior notes due 2019

The June 2009 Senior Notes require interest to be paid semi-annually on June 15 and December 15. On June 15, 2012, $1,000.0 million aggregate principal amount of 5.250% Senior Notes due 2012 matured and were redeemed. On March 29, 2013, the Company redeemed ESI’s $1,000.0 million aggregate principal amount of 6.250% senior notes due 2014. Total cash payments related to the redemption of the 6.250% senior notes due 2014 were $1,085.0 million, which included $68.5 million of redemption costs and write-off of deferred financing fees which are reflected within the “Interest expense and other” line item of the consolidated statement of operations for the year ended December 31, 2013. These notes are redeemable at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis at the treasury rate plus 50 basis points with respect to any notes being redeemed, plus in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The June 2009 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior unsecured basis by us and most of our current and future 100% owned domestic subsidiaries. ESI used the net proceeds for the acquisition of WellPoint’s NextRx PBM Business.

On September 10, 2010, Medco issued $1,000.0 million of senior notes (the “September 2010 Senior Notes”) including:

• $500.0 million aggregate principal amount of 2.750% senior notes due 2015 (the “September 2015 Senior Notes”)

• $500.0 million aggregate principal amount of 4.125% senior notes due 2020 (the “September 2020 Senior Notes”)

The September 2010 Senior Notes require interest to be paid semi-annually on March 15 and September 15. We may redeem some or all of the September 2010 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 20 basis points with respect to any September 2015 Senior Notes being redeemed, or 25 basis points with respect to any September 2020 Senior Notes being redeemed, plus, in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The September 2010 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior basis by us and most of our current and future 100% owned domestic subsidiaries.

On May 2, 2011, ESI issued $1,500.0 million aggregate principal amount of 3.125% senior notes due 2016 (the “May 2011 Senior Notes”). The May 2011 Senior Notes require interest to be paid semi-annually on May 15 and November 15. We may redeem some or all of the May 2011 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 20 basis points with respect to any May 2011 Senior Notes being redeemed, plus in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The May 2011 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior basis by us and most of our current and future 100% owned domestic subsidiaries. ESI used the net proceeds to repurchase treasury shares.

On November 14, 2011, we issued $4,100.0 million of senior notes (the “November 2011 Senior Notes”), including:

• $900.0 million aggregate principal amount of 2.750% senior notes due 2014 (the “November 2014 Senior Notes”)

• $1,250.0 million aggregate principal amount of 3.500% senior notes due 2016 (the “November 2016 Senior Notes”)

• $1,250.0 million aggregate principal amount of 4.750% senior notes due 2021 (the “2021 Senior Notes”)

• $700.0 million aggregate principal amount of 6.125% senior notes due 2041 (the “2041 Senior Notes”)

The November 2014 Senior Notes require interest to be paid semi-annually on May 21 and November 21. The November 2016 Senior Notes, 2021 Senior Notes, and 2041 Senior Notes require interest to be paid semi-annually on May 15 and November 15.

We may redeem some or all of each series of November 2011 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis at the treasury rate plus 35 basis points with respect to any November 2014 Senior Notes being redeemed, 40 basis points with respect to any November 2016 Senior Notes being redeemed, 45 basis points with respect to any 2021 Senior Notes being redeemed, or 50 basis points with respect to any 2041 Senior Notes being redeemed, plus in each case, unpaid interest on the notes being redeemed accrued to the redemption date. The November 2011 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior unsecured basis by most of our current and future 100% owned domestic subsidiaries. The net proceeds were used to pay a portion of the cash consideration paid in the Merger and to pay related fees and expenses (see Note 3 - Changes in business).

On February 6, 2012, we issued $3,500.0 million of senior notes (the “February 2012 Senior Notes”), including:

• $1,000.0 million aggregate principal amount of 2.100% senior notes due 2015 (“February 2015 Senior Notes”)

• $1,500.0 million aggregate principal amount of 2.650% senior notes due 2017 (“February 2017 Senior Notes”)

• $1,000.0 million aggregate principal amount of 3.900% senior notes due 2022 (“February 2022 Senior Notes”)

We may redeem some or all of each series of February 2012 Senior Notes prior to maturity at a price equal to the greater of (1) 100% of the aggregate principal amount of any notes being redeemed, plus accrued and unpaid interest; or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed, not including unpaid interest accrued to the redemption date, discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the treasury rate plus 30 basis points with respect to any February 2015 Senior Notes being redeemed, 35 basis points with respect to any February 2017 Senior Notes being redeemed, or 40 basis points with respect to any February 2022 Senior Notes being redeemed plus, in each case, unpaid interest on the notes being redeemed, accrued to the redemption date. The February 2012 Senior Notes are jointly and severally and fully and unconditionally (subject to certain customary release provisions, including sale, exchange, transfer or liquidation of the guarantor subsidiary) guaranteed on a senior unsecured basis by most of our current and future 100% owned domestic subsidiaries. The net proceeds were used to pay a portion of the cash consideration paid in the Merger and to pay related fees and expenses (see Note 3 - Changes in business).

FINANCING COSTS

Financing costs of $13.3 million for the issuance of the June 2009 Senior Notes are being amortized over a weighted-average period of 5.2 years. Financing costs of $10.9 million for the issuance of the May 2011 Senior Notes are being amortized over 5 years. Financing costs of $29.9 million for the issuance of the November 2011 Senior Notes are being amortized over a weighted-average period of 12.1 years. Financing costs of $22.5 million for the issuance of the February 2012 Senior Notes are being amortized over a weighted-average period of 6.2 years.

We incurred financing costs of $91.0 million related to the bridge facility. Financing costs of $26.0 million were immediately expensed upon entering into the credit agreement, which reduced the commitments under the bridge facility by $4,000.0 million. The remaining financing costs of $65.0 million related to the bridge facility were capitalized and were amortized through April 2012. Amortization of the deferred financing costs was accelerated in proportion to the amount by which alternative financing replaced the commitments under the bridge facility.

Financing costs of $36.1 million related to the term facility and revolving facility are being amortized over 4.4 years. In conjunction with our payment of $1,000.0 million on the term loan, we wrote off a proportionate amount of financing costs.

Deferred financing costs are reflected in other intangible assets, net in the accompanying consolidated balance sheet.

COVENANTS

Our bank financing arrangements contain covenants that restrict our ability to incur additional indebtedness, create or permit liens on assets and engage in mergers or consolidations. The covenants also include minimum interest coverage ratios and maximum leverage ratios. The March 2008 Senior Notes are also subject to an interest rate adjustment in the event of a downgrade in the ratings to below investment grade. At December 31, 2013, we believe we were in compliance with all covenants associated with our credit agreements.

The following represents the schedule of current maturities, excluding unamortized discounts and premiums, for our long-term debt as of December 31, 2013 (amounts in millions):

Year Ended December 31,
2014	$	1,584.3
2015	2,552.6
2016	3,013.2
2017	1,500.0
2018	1,200.0
Thereafter	3,950.0
	$	13,800.1

XML

Goodwill and other intangible assets - Summary of Change in Net Carrying Value of Goodwill by Business Segment (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2012 CYC [Member]	Sep. 30, 2012 Goodwill [Member] CYC [Member]	Dec. 31, 2012 Goodwill [Member] Europa Apotheek [Member]
Goodwill [Line Items]
Dispositions	$ 14.0	[1]	$ 12.0	$ 12.0
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax					$ 2.0

[1] Represents the disposition of $12.0 million of goodwill associated with the sale of CYC and the impairment of $2.0 million associated with EAV.

XML

Property and equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property and equipment

5. Property and equipment

Property and equipment of our continuing operations consists of the following:

	December 31,
(in millions)	2013			2012
Land and buildings	$	215.8		$	216.4
Furniture	71.6			66.6
Equipment(1)	707.5			542.5
Computer software	1,582.3			1,321.3
Leasehold improvements	173.4			179.1
Total property and equipment	2,750.6			2,325.9
Less accumulated depreciation(1)	(1,091.7		)	(693.8		)
Property and equipment, net	$	1,658.9		$	1,632.1

(1) Includes gross assets of $58.1 million and accumulated depreciation of $5.5 million related to capital lease assets as of December 31, 2013.

Depreciation expense for our continuing operations in 2013, 2012 and 2011 was $428.8 million, $283.0 million and $98.6 million, respectively. Internally developed software, net of accumulated amortization, for our continuing operations was $619.9 million and $743.5 million at December 31, 2013 and 2012, respectively. We capitalized $62.9 million of internally developed software during 2013.

In November 2012, we entered into a four-year capital lease for equipment to be used in our Fair Lawn, New Jersey facility, with a commencement date of January 1, 2013. The assets obtained with the capital lease are included in the Equipment line disclosed in the table above. As of December 31, 2013, the capitalized lease obligation was $42.0 million (see Note 12 - Commitments and contingencies).

Under certain of our operating leases for facilities in which we operate home delivery and specialty pharmacies, we are required to remove improvements and equipment upon surrender of the property to the landlord and convert the facilities back to office space. Our asset retirement obligation for our continuing operations was $10.1 million and $4.9 million at December 31, 2013 and 2012, respectively.

In the first quarter of 2011, we ceased fulfilling prescriptions from our home delivery dispensing pharmacy in Bensalem, Pennsylvania. We are currently in the process of closing this facility, which is scheduled to be completed in 2014.

XML

Goodwill and other intangibles

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and other intangibles

6. Goodwill and other intangibles

The following is a summary of our goodwill and other intangible assets for our two reportable segments, PBM and Other Business Operations.

	December 31, 2013							December 31, 2012(1)
(in millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Goodwill
PBM(2)	$	29,315.4	$	(107.4	)	$	29,208.0	$	29,330.4	$	(107.4	)	$	29,223.0
Other Business Operations	97.4		—			97.4		97.4		—			97.4
	$	29,412.8	$	(107.4	)	$	29,305.4	$	29,427.8	$	(107.4	)	$	29,320.4
Other intangible assets
PBM
Customer contracts(3)	$	17,602.3	$	(3,926.2	)	$	13,676.1	$	17,672.7	$	(2,038.3	)	$	15,634.4
Trade names	226.6		(39.0		)	187.6		226.6		(16.7		)	209.9
Miscellaneous(4)	111.6		(47.4		)	64.2		121.6		(34.9		)	86.7
	17,940.5		(4,012.6		)	13,927.9		18,020.9		(2,089.9		)	15,931.0
Other Business Operations
Customer relationships(5)	127.3		(69.2		)	58.1		138.5		(63.2		)	75.3
Trade names	35.8		(6.2		)	29.6		34.7		(3.1		)	31.6
	163.1		(75.4		)	87.7		173.2		(66.3		)	106.9
Total other intangible assets	$	18,103.6	$	(4,088.0	)	$	14,015.6	$	18,194.1	$	(2,156.2	)	$	16,037.9

(1) Goodwill associated with the PBM now excludes discontinued operations of our acute infusion therapies line of business.

(2) PBM goodwill associated with the Merger has been reduced by $12.7 million due to finalization of the purchase price allocation during the first quarter of 2013.

(3) Changes in gross PBM customer contracts and related accumulated amortization reflect a decrease of $84.4 million related to the write-off of fully depreciated assets. Changes in PBM customer contracts also reflect an increase of $14.5 million related to the SmartD asset acquisition, as discussed below.

(4) Changes in gross miscellaneous intangible assets and related accumulated amortization reflect a decrease of $10.0 million following the write-off of deferred financing fees related to the early repayment and the redemption of senior notes. See Note 7 - Financing for additional information.

(5) Changes in gross customer relationships and related accumulated amortization reflect a decrease of $11.2 million. These balances reflect amounts written off and have no net impact on the net other intangible assets balance.

A summary of the change in the net carrying value of goodwill by business segment is shown in the following table:

(in millions)	PBM			Other Business Operations			Total
Balance at December 31, 2011	$	5,405.2		$	80.5		$	5,485.7
Acquisitions(1)	23,856.5			121.8			23,978.3
Discontinued operations(2)	(39.4		)	(88.5		)	(127.9		)
Dispositions(3)	—			(14.0		)	(14.0		)
Foreign currency translation and other	0.7			(2.4		)	(1.7		)
Balance at December 31, 2012	$	29,223.0		$	97.4		$	29,320.4
Purchase price allocation adjustment(4)	(12.7		)	—			(12.7		)
Foreign currency translation	(2.3		)	—			(2.3		)
Balance at December 31, 2013	$	29,208.0		$	97.4		$	29,305.4

(1) Represents the acquisition of Medco in April 2012.

(2) Represents goodwill associated with the discontinued portions of UBC and our acute infusion therapies line of business.

(3) Represents the disposition of $12.0 million of goodwill associated with the sale of CYC and the impairment of $2.0 million associated with EAV.

(4) Goodwill associated with the Merger has been adjusted due to the finalization of the purchase price allocation during the first quarter of 2013.

The aggregate amount of amortization expense of other intangible assets for our continuing operations was $2,037.8 million, $1,632.0 million and $236.0 million for the years ended December 31, 2013, 2012 and 2011, respectively. Amortization expense for the years ended December 31, 2013 and 2012 includes $19.6 million and $43.6 million, respectively, of fees incurred, recorded in interest expense in the consolidated statement of operations, related to our debt instruments. Additionally, in accordance with applicable accounting guidance, amortization of $114.0 million for customer contracts related to the PBM agreement has been included as an offset to revenues for each of the years ended December 31, 2013, 2012 and 2011. The future aggregate amount of amortization expense of other intangible assets for our continuing operations is expected to be approximately $1,767.8 million for 2014, $1,747.4 million for 2015, $1,740.2 million for 2016, $1,322.7 million for 2017 and $1,312.0 million for 2018. The weighted-average amortization period of intangible assets subject to amortization is 16 years in total, and by major intangible class is 5 to 20 years for customer-related intangibles and 2 to 30 years years for other intangible assets.

In connection with an asset acquisition and the disposition of various businesses (see Note 4 - Dispositions), and pursuant to our policies for assessing impairment of goodwill and long-lived assets (see Note 1 - Summary of significant accounting policies), we recorded various additions and charges, as described below.

Asset acquisition of SmartD. Our PBM gross customer contract balance as of December 31, 2013 includes an increase of $14.5 million. This new intangible asset has a useful life of 10 years and is the result of our asset acquisition of the SmartD Medicare Prescription Drug Plan (“PDP”) on September 1, 2013. The asset acquisition added 87,000 covered Medicare lives to our existing PDP offering.

Sale of acute infusion therapies line of business. In connection with entering into an agreement for the sale of the acute infusion therapies line of business, amounts previously classified in continuing operations have been reclassified to discontinued operations for the year ended December 31, 2012. Amounts reclassified as discontinued operations included goodwill of $39.4 million. During the year ended December 31, 2013, we recorded goodwill impairment charges associated with our acute infusion therapies line of business totaling $32.9 million. As a gain was recorded on the sale, the elimination of the remaining goodwill of $6.5 million was not recorded as an impairment.

Sale of portions of UBC. As a result of our determination that portions of the UBC business were not core to our future operations, amounts previously classified in continuing operations were reclassified to discontinued operations in 2012. Amounts reclassified as discontinued operations, and subsequently written off in connection with the sale of these lines of business throughout 2013, included goodwill of $88.5 million and intangible assets of $157.4 million. Intangible assets were comprised of customer relationships with a carrying value of $157.4 million (gross value of $181.4 million less accumulated amortization of $24.0 million). As a gain was recorded on the sale of these businesses, the elimination of these amounts was not recorded as an impairment.

Sale of EAV. In 2012, we recorded impairment charges associated with EAV totaling $11.5 million, which was comprised of $2.0 million of goodwill and $9.5 million of intangible assets and reflected fair value. The write-down of intangible assets was comprised of customer relationships with a carrying value of $3.6 million (gross value of $5.0 million less accumulated amortization of $1.4 million) and trade names with a carrying value of $5.9 million (gross value of $7.0 million less accumulated amortization of $1.1 million).

Sale of Liberty. In 2012, we recorded an impairment charge associated with Liberty totaling $23.0 million to reflect fair value. The write-down was comprised of customer relationships with a carrying value of $24.2 million (gross value of $35.0 million less accumulated amortization of $10.8 million) and trade names with a carrying value of $6.6 million (gross value of $7.0 million less accumulated amortization of $0.4 million). This charge was allocated to these assets on a pro rata basis using the carrying values as of September 30, 2012.

Sale of CYC. In 2012, we completed the sale of CYC, which was included in our Other Business Operations segment. In connection with the sale of this line of business, goodwill of $12.0 million and trade names of $0.7 million were eliminated upon the sale of the business. As a gain was recorded on the sale, the elimination of these amounts was not recorded as an impairment.

XML

Income taxes

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Income taxes

8. Income taxes

Income from continuing operations before income taxes of $3,030.3 million resulted in net tax expense of $1,104.0 million for 2013. We consider our foreign earnings to be indefinitely reinvested, and accordingly have not recorded a provision for U.S. federal and state income taxes thereon. Cumulative undistributed foreign earnings for which U.S. taxes have not been provided are included in consolidated retained earnings in the amount of $82.2 million, $65.6 million and $53.7 million as of December 31, 2013, 2012, and 2011, respectively. Upon distribution of such earnings, we would be subject to United States income taxes of approximately $30.0 million.

The provision (benefit) for income taxes for continuing operations consists of the following:

	Year Ended December 31,
(in millions)	2013			2012			2011
Income from continuing operations before income taxes:
United States	$	2,987.6		$	2,185.8		$	2,029.4
Foreign	42.7			14.6			(2.3		)
Total	$	3,030.3		$	2,200.4		$	2,027.1
Current provision:
Federal	$	1,483.4		$	1,009.5		$	565.2
State	192.3			216.8			42.5
Foreign	2.0			0.7			3.1
Total current provision	1,677.7			1,227.0			610.8
Deferred provision:
Federal	(520.0		)	(358.5		)	125.3
State	(45.3		)	(29.8		)	12.4
Foreign	(8.4		)	(0.7		)	0.1
Total deferred provision (benefit)	(573.7		)	(389.0		)	137.8
Total current and deferred provision	$	1,104.0		$	838.0		$	748.6

A reconciliation of the statutory federal income tax rate and the effective tax rate follows (the effect of foreign taxes on the effective tax rate for 2013, 2012, and 2011 is immaterial):

	Year Ended December 31,
	2013		2012		2011
Statutory federal income tax rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal benefit	2.6		5.1		2.0
Non-controlling interest	(0.3	)	(0.3	)	—
Investment in foreign subsidiaries	(0.7	)	(3.0	)	—
Other, net	(0.2	)	1.3		—
Effective tax rate	36.4	%	38.1	%	37.0	%

Our effective tax rate from continuing operations decreased to 36.4% for the year ended December 31, 2013, compared to 38.1% and 37.0% for 2012 and 2011, respectively.

During 2013, we recorded a discrete benefit of $51.2 million primarily attributable to investments in certain foreign subsidiaries for which we recognized as a result of various divestitures, deferred tax implications of newly enacted state laws and income not recognized for tax purposes. We recorded a discrete benefit of $8.2 million in 2012 primarily attributable to an income tax contingency related to prior year income tax return filings and investments in certain foreign subsidiaries which we expected to realize in the foreseeable future.

The effective tax rate recognized in discontinued operations was (115.1)% and (30.5)% for the years ended December 31, 2013 and 2012, respectively. There were no discontinued operations in 2011. Our income tax provision from discontinued operations was $28.7 million, and $7.5 million for 2013 and 2012, respectively.

The deferred tax assets and deferred tax liabilities recorded in our consolidated balance sheet are as follows:

	December 31,
(in millions)	2013			2012
Deferred tax assets:
Allowance for doubtful accounts	$	70.9		$	61.6
Note premium	81.6			101.7
Tax attributes	85.9			62.7
Deferred compensation	6.4			12.2
Equity compensation	268.7			359.5
Accrued expenses	406.0			329.9
Federal benefit of uncertain tax positions	181.8			164.9
Investment in foreign subsidiaries	—			15.6
Other	16.4			19.0
Gross deferred tax assets	1,117.7			1,127.1
Less valuation allowance	(66.9		)	(34.7		)
Net deferred tax assets	1,050.8			1,092.4
Deferred tax liabilities:
Depreciation and property differences	(434.3		)	(444.6		)
Goodwill and intangible assets	(5,585.9		)	(6,164.7		)
Prepaids	(4.0		)	(7.7		)
Other	(11.8		)	(11.3		)
Gross deferred tax liabilities	(6,036.0		)	(6,628.3		)
Net deferred tax liabilities	$	(4,985.2	)	$	(5,535.9	)

As of December 31, 2013, we have deferred tax assets for state and foreign net operating loss carryforwards of approximately $46.5 million and $29.7 million, respectively. The state and foreign net operating loss carryforwards, if unutilized, will expire between 2014 and 2033. A valuation allowance of $64.9 million exists for a portion of these deferred tax assets.

A reconciliation of our beginning and ending amount of unrecognized tax benefits is as follows:

(in millions)	2013			2012			2011
Balance at January 1	$	500.8		$	32.4		$	57.3
Additions for tax positions related to prior years(1)(2)	637.3			392.7			7.3
Reductions for tax positions related to prior years(1)	(92.0		)	(1.3		)	(30.3		)
Additions for tax positions related to the current year	41.7			83.7			4.9
Reductions attributable to settlements with taxing authorities	(3.5		)	—			(5.1		)
Reductions as a result of a lapse of the applicable statute of limitations	(22.8		)	(6.7		)	(1.7		)
Balance at December 31	$	1,061.5		$	500.8		$	32.4

(1) Includes $50.4 million additions and $8.3 million reductions of Medco income tax contingencies recorded through the allocation of Medco’s purchase price for the quarter ended March 31, 2013.

(2) Includes $544.9 million in additions related to a claimed loss in 2012 on the disposition of Liberty.

Included in our unrecognized tax benefits are $451.4 million of uncertain tax positions that would impact our effective tax rate if recognized.

We recorded $22.8 million of interest and penalties to the provision for income taxes in our consolidated statement of operations for the year ended December 31, 2013 as compared to a $19.6 million charge and a $7.0 million benefit for the years ended December 2012 and 2011, respectively. During 2013, we also recorded $2.4 million of interest and penalties through acquisition accounting for the Merger as compared to $55.4 million in 2012. This resulted in $105.8 million and $80.6 million of accrued interest and penalties in our consolidated balance sheet as of December 31, 2013 and 2012, respectively.

The Internal Revenue Service (“IRS”) is currently examining Medco’s 2008, 2009 and 2010 consolidated U.S. federal income tax returns. This examination is expected to conclude in early 2014 and is not expected to result in a material change to our financial position. In 2013, the IRS commenced its examination of ESI’s 2010, 2011 and 2012 consolidated U.S. federal income tax returns. Our federal income tax audit uncertainties primarily relate to the timing of deductions while various state income tax audit uncertainties primarily relate to the attribution of overall taxable income to those states. We have taken positions in certain taxing jurisdictions for which it is reasonably possible that the total amounts of unrecognized tax benefits may change within the next twelve months. The possible change could result from the finalization of income tax audits and lapses of statutes of limitation. An estimate of the range of the reasonably possible change in the next 12 months cannot be made. The majority of the open tax years subject to examination by taxing authorities are for years subsequent to 2007.

As of December 31, 2013, management intends to pursue a $544.9 million potential tax benefit related to the disposition of Liberty. Based on information currently available, no net benefit has been recognized. Pending the resolution of certain matters, including but not limited to examinations by taxing authorities, all or a part of the deduction may become realizable in the future. We cannot predict with any certainty the exact amount.

XML

Financing - Bank Credit Facilities - Additional Information (Detail) (USD $)	12 Months Ended			3 Months Ended	12 Months Ended		12 Months Ended						12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Term Loan Facility Due August 29, 2016 [Member]	Dec. 31, 2013 Term Loan Facility Due August 29, 2016 [Member]	Aug. 29, 2011 Term Loan Facility Due August 29, 2016 [Member]	Dec. 31, 2013 Term Loan Facility Due August 29, 2016 [Member] London Interbank Offered Rate (LIBOR) [Member] Minimum [Member]	Dec. 31, 2013 Term Loan Facility Due August 29, 2016 [Member] London Interbank Offered Rate (LIBOR) [Member] Maximum [Member]	Dec. 31, 2013 Term Loan Facility Due August 29, 2016 [Member] Adjusted Base Rate [Member] Minimum [Member]	Dec. 31, 2013 Term Loan Facility Due August 29, 2016 [Member] Adjusted Base Rate [Member] Maximum [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member]	Aug. 29, 2011 Revolving Credit Facility Due August 29, 2016 [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member] Minimum [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member] Maximum [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member] London Interbank Offered Rate (LIBOR) [Member] Minimum [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member] London Interbank Offered Rate (LIBOR) [Member] Maximum [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member] Adjusted Base Rate [Member] Minimum [Member]	Dec. 31, 2013 Revolving Credit Facility Due August 29, 2016 [Member] Adjusted Base Rate [Member] Maximum [Member]	Dec. 31, 2013 Accounts Receivable Financing Facility [Member]
Debt Instrument [Line Items]
Line of credit facility duration					5 years														364 days
Credit facility, maximum capacity						$ 4,000,000,000.0						$ 1,500,000,000.0
Amount drawn under revolving facility					2,000,000,000						0
Repayment of long-term debt	1,931,600,000	3,868,500,000	100,000	1,000,000,000
Average interest rate, under the term facility					1.92%
Current maturities of long-term debt	1,584,000,000	934,900,000			684,200,000
Margin over interest rate							1.25%	1.75%	0.25%	0.75%					1.10%	1.55%	0.10%	0.55%
Unused portion of new revolving credit											$ 1,500,000,000
Commitment fee on the unused portion of the revolving credit facility													0.15%	0.20%

XML

Pension and other post-retirement benefits - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Apr. 02, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Fair value of projected benefit obligation	$ 291.3
Plan assets at fair value, total	217.0
Amount of balance sheet liability, plan assets	$ 74.3

XML

Financing - Senior Notes - Additional Information (Detail) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended		12 Months Ended			12 Months Ended		12 Months Ended							0 Months Ended	1 Months Ended	12 Months Ended								0 Months Ended		0 Months Ended								12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 March 2008 Senior Notes [Member]	Mar. 18, 2008 March 2008 Senior Notes [Member]	Dec. 31, 2013 June 2009 Senior Notes [Member]	Jun. 09, 2009 June 2009 Senior Notes [Member]	Dec. 31, 2013 September 2010 Senior Notes [Member]	Sep. 10, 2010 September 2010 Senior Notes [Member]	Dec. 31, 2013 May 2011 Senior Notes [Member]	Dec. 31, 2013 November 2011 Senior Notes [Member]	Nov. 14, 2011 November 2011 Senior Notes [Member]	Dec. 31, 2013 February 2012 Senior Notes [Member]	Feb. 06, 2012 February 2012 Senior Notes [Member]	Dec. 31, 2013 Express Scripts Inc [Member] June 2009 Senior Notes [Member]	Dec. 31, 2013 Express Scripts Inc [Member] May 2011 Senior Notes [Member]	Dec. 31, 2013 Medco Health Solutions, Inc. [Member]	Dec. 31, 2012 Medco Health Solutions, Inc. [Member]	Dec. 31, 2011 Medco Health Solutions, Inc. [Member]	Dec. 31, 2013 Medco Health Solutions, Inc. [Member] March 2008 Senior Notes [Member]	Dec. 31, 2013 Medco Health Solutions, Inc. [Member] September 2010 Senior Notes [Member]	May 07, 2012 7.250% senior notes due 2013 [Member]	Aug. 31, 2003 7.250% senior notes due 2013 [Member]	Dec. 31, 2013 7.250% senior notes due 2013 [Member]	Dec. 31, 2004 7.250% senior notes due 2013 [Member]	Dec. 31, 2013 6.125% senior notes due 2013 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2012 6.125% senior notes due 2013 [Member] March 2008 Senior Notes [Member]	Mar. 18, 2008 6.125% senior notes due 2013 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2013 7.125% senior notes due 2018 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2012 7.125% senior notes due 2018 [Member] March 2008 Senior Notes [Member]	Mar. 18, 2008 7.125% senior notes due 2018 [Member] March 2008 Senior Notes [Member]	Jun. 15, 2012 5.250% senior notes due 2012 [Member] June 2009 Senior Notes [Member]	Jun. 09, 2009 5.250% senior notes due 2012 [Member] June 2009 Senior Notes [Member]	Mar. 29, 2013 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2013 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2012 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Mar. 29, 2012 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Jun. 09, 2009 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2013 7.250% senior notes due 2019 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2012 7.250% senior notes due 2019 [Member] June 2009 Senior Notes [Member]	Jun. 09, 2009 7.250% senior notes due 2019 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2013 2.750% senior notes due 2015 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2012 2.750% senior notes due 2015 [Member] September 2010 Senior Notes [Member]	Sep. 10, 2010 2.750% senior notes due 2015 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2013 4.125% senior notes due 2020 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2012 4.125% senior notes due 2020 [Member] September 2010 Senior Notes [Member]	Sep. 10, 2010 4.125% senior notes due 2020 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2013 3.125% senior notes due 2016 [Member] May 2011 Senior Notes [Member]	Dec. 31, 2012 3.125% senior notes due 2016 [Member] May 2011 Senior Notes [Member]	May 02, 2011 3.125% senior notes due 2016 [Member] May 2011 Senior Notes [Member]	Dec. 31, 2013 2.750% senior notes due 2014 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 2.750% senior notes due 2014 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 2.750% senior notes due 2014 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 3.500% senior notes due 2016 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 3.500% senior notes due 2016 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 3.500% senior notes due 2016 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 4.750% senior notes due 2021 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 4.750% senior notes due 2021 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 4.750% senior notes due 2021 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 6.125% senior notes due 2041 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 6.125% senior notes due 2041 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 6.125% senior notes due 2041 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 2.100% senior notes due 2015 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2012 2.100% senior notes due 2015 [Member] February 2012 Senior Notes [Member]	Feb. 06, 2012 2.100% senior notes due 2015 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2013 2.650% senior notes due 2017 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2012 2.650% senior notes due 2017 [Member] February 2012 Senior Notes [Member]	Feb. 06, 2012 2.650% senior notes due 2017 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2013 3.900% senior notes due 2022 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2012 3.900% senior notes due 2022 [Member] February 2012 Senior Notes [Member]	Feb. 06, 2012 3.900% senior notes due 2022 [Member] February 2012 Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes aggregate principal amount					$ 1,500,000,000		$ 2,500,000,000.0		$ 1,000,000,000			$ 4,100,000,000		$ 3,500,000,000									$ 500,000,000.0		$ 500,000,000.0			$ 300,000,000.0			$ 1,200,000,000.0		$ 1,000,000,000.0				$ 1,000,000,000	$ 1,000,000,000.0			$ 500,000,000.0			$ 500,000,000.0			$ 500,000,000.0			$ 1,500,000,000			$ 900,000,000			$ 1,250,000,000			$ 1,250,000,000			$ 700,000,000			$ 1,000,000,000			$ 1,500,000,000			$ 1,000,000,000
Interest rate on debt instrument																							7.25%		7.25%	6.125%	6.125%	6.125%	7.125%	7.125%	7.125%	5.25%	5.25%		6.25%	6.25%	6.25%	6.25%	7.25%	7.25%	7.25%	2.75%	2.75%	2.75%	4.125%	4.125%	4.125%	3.125%	3.125%	3.125%	2.75%	2.75%	2.75%	3.50%	3.50%	3.50%	4.75%	4.75%	4.75%	6.125%	6.125%	6.125%	2.10%	2.10%	2.10%	2.65%	2.65%	2.65%	3.90%	3.90%	3.90%
Percentage of principal amount redeemed																							100.00%
Percentage of present values aggregate principal amount of notes redeemed																							107.25%
Basis points				0.50%		0.50%				0.20%														0.50%																		0.20%			0.25%						0.35%			0.40%			0.45%			0.50%			0.30%			0.35%			0.40%
Repayment of long-term debt	1,931,600,000	3,868,500,000	100,000														300,000,000	1,500,000,000	0			549,400,000										1,000,000,000		1,085,000,000
Percentage of aggregate principal amount of notes redeemed				100.00%		100.00%		100.00%			100.00%		100.00%																																			100.00%
Assumptions, days in year				360				360					360																																			360
Assumptions, days in month				30				30					30																																			30
Ownership percentage, subsidiary	100.00%										100.00%		100.00%		100.00%	100.00%				100.00%	100.00%
Payments of debt expenditure costs																																		$ 68,500,000

XML

Condensed consolidating financial information Condensed consolidating financial information - Prior period correction (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012 Medco Health Solutions, Inc. [Member] Assets [Member]	Dec. 31, 2012 Medco Health Solutions, Inc. [Member] Goodwill [Member]	Dec. 31, 2012 Medco Health Solutions, Inc. [Member] Liabilities, Total [Member]	Dec. 31, 2012 Guarantors [Member] Assets [Member]	Dec. 31, 2012 Guarantors [Member] Goodwill [Member]	Dec. 31, 2012 Guarantors [Member] Liabilities, Total [Member]	Dec. 31, 2012 Non-Guarantors [Member] Assets [Member]	Dec. 31, 2012 Non-Guarantors [Member] Goodwill [Member]	Dec. 31, 2012 Non-Guarantors [Member] Liabilities, Total [Member]	Dec. 31, 2012 Consolidation, Eliminations [Member] Assets [Member]	Dec. 31, 2012 Consolidation, Eliminations [Member] Goodwill [Member]	Dec. 31, 2012 Consolidation, Eliminations [Member] Liabilities, Total [Member]
Condensed Financial Statements, Captions [Line Items]
Change in accounting estimate	$ (12.7)	[1]	$ (2,040.0)	$ 2,040.0	$ 0	$ 2,000.5	$ (2,000.5)	$ 0	$ 0	$ 39.5	$ (39.5)	$ 39.5	$ 0	$ 39.5

[1] Goodwill associated with the Merger has been adjusted due to the finalization of the purchase price allocation during the first quarter of 2013.

XML

Financing - Summary of Company's Debt, Net of Unamortized Discounts (Parenthetical) (Detail)	Dec. 31, 2013 Term facility due August 29, 2016 [Member]	Dec. 31, 2012 Term facility due August 29, 2016 [Member]	Dec. 31, 2013 7.125% senior notes due 2018 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2012 7.125% senior notes due 2018 [Member] March 2008 Senior Notes [Member]	Mar. 18, 2008 7.125% senior notes due 2018 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2013 6.125% senior notes due 2013 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2012 6.125% senior notes due 2013 [Member] March 2008 Senior Notes [Member]	Mar. 18, 2008 6.125% senior notes due 2013 [Member] March 2008 Senior Notes [Member]	Dec. 31, 2013 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2012 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Mar. 29, 2012 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Jun. 09, 2009 6.250% senior notes due 2014 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2013 7.250% senior notes due 2019 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2012 7.250% senior notes due 2019 [Member] June 2009 Senior Notes [Member]	Jun. 09, 2009 7.250% senior notes due 2019 [Member] June 2009 Senior Notes [Member]	Dec. 31, 2013 2.750% senior notes due 2015 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2012 2.750% senior notes due 2015 [Member] September 2010 Senior Notes [Member]	Sep. 10, 2010 2.750% senior notes due 2015 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2013 4.125% senior notes due 2020 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2012 4.125% senior notes due 2020 [Member] September 2010 Senior Notes [Member]	Sep. 10, 2010 4.125% senior notes due 2020 [Member] September 2010 Senior Notes [Member]	Dec. 31, 2013 3.125% senior notes due 2016 [Member] May 2011 Senior Notes [Member]	Dec. 31, 2012 3.125% senior notes due 2016 [Member] May 2011 Senior Notes [Member]	May 02, 2011 3.125% senior notes due 2016 [Member] May 2011 Senior Notes [Member]	Dec. 31, 2013 3.500% senior notes due 2016 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 3.500% senior notes due 2016 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 3.500% senior notes due 2016 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 4.750% senior notes due 2021 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 4.750% senior notes due 2021 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 4.750% senior notes due 2021 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 2.750% senior notes due 2014 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 2.750% senior notes due 2014 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 2.750% senior notes due 2014 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 6.125% senior notes due 2041 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2012 6.125% senior notes due 2041 [Member] November 2011 Senior Notes [Member]	Nov. 14, 2011 6.125% senior notes due 2041 [Member] November 2011 Senior Notes [Member]	Dec. 31, 2013 2.650% senior notes due 2017 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2012 2.650% senior notes due 2017 [Member] February 2012 Senior Notes [Member]	Feb. 06, 2012 2.650% senior notes due 2017 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2013 2.100% senior notes due 2015 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2012 2.100% senior notes due 2015 [Member] February 2012 Senior Notes [Member]	Feb. 06, 2012 2.100% senior notes due 2015 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2013 3.900% senior notes due 2022 [Member] February 2012 Senior Notes [Member]	Dec. 31, 2012 3.900% senior notes due 2022 [Member] February 2012 Senior Notes [Member]	Feb. 06, 2012 3.900% senior notes due 2022 [Member] February 2012 Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate on debt instrument	1.92%	1.96%	7.125%	7.125%	7.125%	6.125%	6.125%	6.125%	6.25%	6.25%	6.25%	6.25%	7.25%	7.25%	7.25%	2.75%	2.75%	2.75%	4.125%	4.125%	4.125%	3.125%	3.125%	3.125%	3.50%	3.50%	3.50%	4.75%	4.75%	4.75%	2.75%	2.75%	2.75%	6.125%	6.125%	6.125%	2.65%	2.65%	2.65%	2.10%	2.10%	2.10%	3.90%	3.90%	3.90%

XML

Pension and other postretirement benefits - Estimated Future Benefit Payments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	$ 15.5
2015	14.1
2016	13.7
2017	13.3
2018	13.1
2019-2023	63.8
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	0.3
2015	0.3
2016	0.3
2017	0.2
2018	0.2
2019-2023	$ 0.7

XML

Employee benefit plans and stock-based compensation plans (Tables)

12 Months Ended

Dec. 31, 2013

Employee Benefits and Share-based Compensation [Abstract]

Status of Restricted Stock Units and Performance Shares

A summary of the status of restricted stock units and performance shares as of December 31, 2013, and changes during the year ended December 31, 2013, is presented below.

	Shares (in millions)		Weighted-Average  Grant Date Fair Value Per Share
Outstanding at beginning of year	4.7		$	54.57
Granted	1.1		58.31
Other(1)	0.1		49.72
Released	(2.5	)	53.70
Forfeited/cancelled	(0.3	)	54.04
Outstanding at December 31, 2013	3.1		56.58
Vested and deferred at December 31, 2013	0.1		56.49
Non-vested at December 31, 2013	3.0		$	56.58

(1) Represents additional performance shares issued above the original value for exceeding certain performance metrics.

Status of Stock Options and SSRs

A summary of the status of stock options and SSRs as of December 31, 2013, and changes during the year ended December 31, 2013, is presented below.

	Shares (in millions)		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life	Aggregate Intrinsic Value (in millions)(1)
Outstanding at beginning of year	44.2		$	40.71
Granted	3.3		58.34
Exercised	(14.6	)	37.56
Forfeited/cancelled	(1.0	)	54.11
Outstanding at end of period	31.9		43.56		5.3	$	852.3
Awards exercisable at period end	23.7		$	40.26	5.0	$	709.8

(1) Amount by which the market value of the underlying stock exceeds the exercise price of the option.

Weighted Average Assumptions to Value Options and SSRs Granted

The fair value of options and SSRs granted is estimated on the date of grant using a Black-Scholes multiple option-pricing model with the following weighted-average assumptions:

	2013	2012	2011
Expected life of option	4-5 years	2-5 years	2-5 years
Risk-free interest rate	0.6%-1.7%	0.3%-0.9%	0.3%-2.2%
Expected volatility of stock	27%-37%	29%-38%	30%-39%
Expected dividend yield	None	None	None
Weighted-average volatility of stock	34.1%	35.5%	36.6%

Summary of Cash Proceeds Fair Value of Vested Shares Intrinsic Value Related to Total Stock Options Exercised and Weighted Average Fair Value of Stock Options Granted

Cash proceeds, intrinsic value related to total stock options exercised, and weighted-average fair value of stock options granted during the years ended December 31, 2013, 2012 and 2011 are provided in the following table:

(in millions, except per share data)	2013		2012		2011
Proceeds from stock options exercised	$	524.0	$	401.1	$	35.9
Intrinsic value of stock options exercised	362.0		359.6		82.8
Weighted-average fair value per share of options granted during the year	$	17.17	$	15.13	$	14.74

XML

Changes in business - Estimated Bad Debt Related to Manufacturer Accounts Receivables and Client Accounts Receivables (Detail) (Subsidiary Company [Member], USD $) In Millions, unless otherwise specified	Apr. 02, 2012
Business Acquisition [Line Items]
Gross Contractual Amounts Receivable	$ 4,327.4
Fair Value	4,283.8
Manufacturer Accounts Receivables [Member]
Business Acquisition [Line Items]
Gross Contractual Amounts Receivable	1,895.2
Fair Value	1,895.2
Client Accounts Receivables [Member]
Business Acquisition [Line Items]
Gross Contractual Amounts Receivable	2,432.2
Fair Value	$ 2,388.6

XML

Segment information

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Segment information

13. Segment information

We report segments on the basis of services offered and have determined we have two reportable segments: PBM and Other Business Operations. During 2013, we determined our acute infusion therapies line of business which was acquired in the Merger and previously included within our PBM segment was no longer core to our future operations and committed to a plan to dispose of this business. During 2012, we determined that various portions of UBC, our European operations and EAV acquired in the Merger that were previously included within our Other Business Operations segment were no longer core to our future operations and committed to a plan to dispose of these businesses. In accordance with applicable accounting guidance, the results of operations for these businesses are reported as discontinued operations for all periods presented in the accompanying information. 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.

Operating income is the measure used by our chief operating decision maker to assess the performance of each of our operating segments. The following table presents information about our reportable segments, including a reconciliation of operating income from continuing operations to income before income taxes from continuing operations for the respective years ended December 31.

(in millions)	PBM		Other Business Operations			Total
2013
Product revenues:
Network revenues(1)	$	63,244.4	$	—		$	63,244.4
Home delivery and specialty revenues(2)	37,621.2		—			37,621.2
Other revenues	—		2,001.9			2,001.9
Service revenues	1,020.1		211.2			1,231.3
Total revenues	101,885.7		2,213.1			104,098.8
Depreciation and amortization expense	2,419.1		27.9			2,447.0
Operating income	3,502.0		49.7			3,551.7
Equity income from joint venture						32.8
Interest income						41.9
Interest expense and other						(596.1		)
Income before income taxes						3,030.3
Capital expenditures	411.2		11.8			423.0
2012
Product revenues:
Network revenues(1)	$	57,765.5	$	—		$	57,765.5
Home delivery and specialty revenues(2)	32,860.9		—			32,860.9
Other revenues	—		2,118.7			2,118.7
Service revenues	805.8		163.4			969.2
Total revenues	91,432.2		2,282.1			93,714.3
Depreciation and amortization expense	1,833.3		38.1			1,871.4
Operating income	2,815.1		(21.2		)	2,793.9
Equity income from joint venture						14.9
Interest income						10.6
Interest expense and other						(619.0		)
Income before income taxes						2,200.4
Capital expenditures	148.5		11.7			160.2
2011
Product revenues:
Network revenues(1)	$	30,007.3	$	—		$	30,007.3
Home delivery and specialty revenues(2)	14,547.4		—			14,547.4
Other revenues	—		1,279.3			1,279.3
Service revenues	273.0		21.3			294.3
Total revenues	44,827.7		1,300.6			46,128.3
Depreciation and amortization expense	245.2		8.2			253.4
Operating income	2,302.6		11.8			2,314.4
Interest income						12.4
Interest expense and other						(299.7		)
Income before income taxes						2,027.1
Capital expenditures	140.0		4.4			144.4

(1) Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

(2) Includes home delivery, specialty and other including: (a) drugs distributed through patient assistance programs and (b) drugs we distribute to other PBMs’ clients under limited distribution contracts with pharmaceutical manufacturers, and (c) FreedomFP claims.

The following table presents the balance sheet information about our reportable segments, including the discontinued operations of our acute infusion therapies line of business, the businesses within UBC that were sold, EAV and our European operations:

(in millions)	PBM		Other Business Operations		Discontinued Operations		Total
As of December 31, 2013
Total assets	$	52,599.1	$	918.1	$	31.0	$	53,548.2
Investment in equity method investees	$	30.2	$	—	$	—	$	30.2
As of December 31, 2012
Total assets	$	54,510.8	$	3,021.2	$	579.2	$	58,111.2
Investment in equity method investees	$	11.9	$	—	$	—	$	11.9

PBM product revenues consist of revenues from the sale of prescription drugs by retail pharmacies in our retail pharmacy networks, revenues from the dispensing of prescription drugs from our home delivery pharmacies and revenues from the sale of certain fertility and specialty drugs. Other Business Operations product revenues consist of specialty distribution activities and development of scientific evidence to guide the safe, effective and affordable use of medicines. PBM service revenues include administrative fees associated with the administration of retail pharmacy networks contracted by certain clients, informed decision counseling services and specialty pharmacy services. Other Business Operations service revenues include revenues related to data analytics and research associated with our UBC business as well as from healthcare card administration through September 14, 2012, the date of disposal of CYC.

The following table shows the percentage of total revenue represented by our top five clients and clients representing 10% or greater of our consolidated revenue for each respective period:

	December 31,
	2013		2012		2011
WellPoint	12.2	%	13.7	%	29.5	%
Department of Defense (“DoD”)	10.2	%	10.6	%	20.9	%
Other	16.0	%	15.0	%	6.3	%
Top five clients	38.4	%	39.3	%	56.7	%

None of our other clients accounted for 10% or more of our consolidated revenues during the years ended December 31, 2013, 2012 or 2011.

Revenues earned by our continuing operations international businesses totaled $98.6 million, $77.1 million and $62.4 million for the years ended December 31, 2013, 2012 and 2011, respectively. All other continuing operations revenues were earned in the United States. Long-lived assets of our continuing operations international businesses (consisting primarily of fixed assets) totaled $58.6 million and $32.6 million as of December 31, 2013 and 2012, respectively. All other continuing operations long-lived assets are domiciled in the United States.

XML

Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Reconciliation Between Weighted Average Shares Used in Basic and Diluted Earnings Per Share Calculation

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.

XML

Commitments and contingencies - Summary of Future Purchase Commitments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
2014	$ 425.3
2015	102.8
2016	57.3
2017	25.3
2018	0
Thereafter	0
Total	$ 610.7

XML

Changes in business - Summary of Combined Results of Operations (Detail) (Subsidiary Company [Member], USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Subsidiary Company [Member]
Business Acquisition [Line Items]
Total revenues	$ 109,639.2	$ 115,463.4
Net income attributable to Express Scripts	$ 1,345.5	$ 719.8
Basic earnings per share from continuing operations (usd per share)	$ 1.69	$ 0.88
Diluted earnings per share from continuing operations (usd per share)	$ 1.66	$ 0.87

XML

Condensed consolidating financial information - Condensed Consolidating Statement of Operations (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Revenues	$ 25,781.4	[1],[2]	$ 25,915.6	[1],[2]	$ 26,381.9	[1],[2]	$ 26,019.9	[1],[2]	$ 27,365.1	[1],[2]	$ 26,761.6	[1],[2]	$ 27,455.0	[1],[2],[3]	$ 12,132.6	[1],[2],[3]	$ 104,098.8	[4]	$ 93,714.3	[4]	$ 46,128.3	[4]
Operating expenses																	100,547.1		90,920.4		43,813.9
Operating income	828.8	[2]	875.5	[2]	1,004.3	[2]	843.1	[2]	906.9	[2]	820.7	[2]	499.4	[2],[3]	566.9	[2],[3]	3,551.7		2,793.9		2,314.4
Total other (expense) income																	(521.4)		(593.5)		(287.3)
Income before taxes																	3,030.3		2,200.4		2,027.1
Provision for income taxes																	1,104.0		838.0		748.6
Net income (loss) from continuing operations	518.3	[2]	453.6	[2]	574.4	[2]	380.0	[2]	524.1	[2]	415.9	[2]	152.2	[2],[3]	270.2	[2],[3]	1,926.3		1,362.4		1,278.5
Net loss from discontinued operations, net of tax	(12.3)	[2]	(15.5)	[2]	(23.9)	[2]	(1.9)	[2]	(13.1)	[2]	(20.0)	[2]	0.8	[2],[3]	0	[2],[3]	(53.6)		(32.3)		0
Equity in earnings of subsidiaries																	0		0		0
Net income	506.0	[2]	438.1	[2]	550.5	[2]	378.1	[2]	511.0	[2]	395.9	[2]	153.0	[2],[3]	270.2	[2],[3]	1,872.7		1,330.1		1,278.5
Less: Net income attributable to non-controlling interest	4.1	[2]	11.4	[2]	7.5	[2]	5.1	[2]	6.9	[2]	4.5	[2]	3.4	[2],[3]	2.4	[2],[3]	28.1		17.2		2.7
Net income attributable to Express Scripts	501.9	[2]	426.7	[2]	543.0	[2]	373.0	[2]	504.1	[2]	391.4	[2]	149.6	[2],[3]	267.8	[2],[3]	1,844.6		1,312.9		1,275.8
Other comprehensive income (loss), net of tax																	(7.2)		1.9		(2.8)
Comprehensive income attributable to Express Scripts																	1,837.4		1,314.8		1,273.0
Express Scripts Holding Company [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues																	0		0		0
Operating expenses																	0		0		0
Operating income																	0		0		0
Total other (expense) income																	(343.9)		(373.7)		(22.2)
Income before taxes																	(343.9)		(373.7)		(22.2)
Provision for income taxes																	(124.8)		(142.1)		(8.1)
Net income (loss) from continuing operations																	(219.1)		(231.6)		(14.1)
Net loss from discontinued operations, net of tax																	0		0
Equity in earnings of subsidiaries																	2,063.7		1,544.5		1,289.9
Net income																	1,844.6		1,312.9		1,275.8
Less: Net income attributable to non-controlling interest																	0		0		0
Net income attributable to Express Scripts																	1,844.6		1,312.9		1,275.8
Other comprehensive income (loss), net of tax																	(7.2)		1.9		(2.8)
Comprehensive income attributable to Express Scripts																	1,837.4		1,314.8		1,273.0
Express Scripts, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues																	29,927.9		29,763.1		29,450.9
Operating expenses																	28,380.5		28,591.8		27,847.9
Operating income																	1,547.4		1,171.3		1,603.0
Total other (expense) income																	(148.8)		(180.1)		(259.8)
Income before taxes																	1,398.6		991.2		1,343.2
Provision for income taxes																	533.0		449.6		487.9
Net income (loss) from continuing operations																	865.6		541.6		855.3
Net loss from discontinued operations, net of tax																	0		0
Equity in earnings of subsidiaries																	803.5		740.0		434.6
Net income																	1,669.1		1,281.6		1,289.9
Less: Net income attributable to non-controlling interest																	0		0		0
Net income attributable to Express Scripts																	1,669.1		1,281.6		1,289.9
Other comprehensive income (loss), net of tax																	(7.2)		1.9		(2.8)
Comprehensive income attributable to Express Scripts																	1,661.9		1,283.5		1,287.1
Medco Health Solutions, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues																	52,736.8		43,085.7		0
Operating expenses																	52,498.3		43,090.3		0
Operating income																	238.5		(4.6)		0
Total other (expense) income																	(23.5)		(49.4)		0
Income before taxes																	215.0		(54.0)		0
Provision for income taxes																	93.3		(20.4)		0
Net income (loss) from continuing operations																	121.7		(33.6)		0
Net loss from discontinued operations, net of tax																	0		0
Equity in earnings of subsidiaries																	272.9		296.5		0
Net income																	394.6		262.9		0
Less: Net income attributable to non-controlling interest																	0		0		0
Net income attributable to Express Scripts																	394.6		262.9		0
Other comprehensive income (loss), net of tax																	0		0		0
Comprehensive income attributable to Express Scripts																	394.6		262.9		0
Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues																	23,273.8		22,007.8		16,520.3
Operating expenses																	21,988.0		20,573.7		15,841.3
Operating income																	1,285.8		1,434.1		679.0
Total other (expense) income																	5.4		(2.2)		(5.9)
Income before taxes																	1,291.2		1,431.9		673.1
Provision for income taxes																	470.6		550.8		263.8
Net income (loss) from continuing operations																	820.6		881.1		409.3
Net loss from discontinued operations, net of tax																	0		0
Equity in earnings of subsidiaries																	0		0		0
Net income																	820.6		881.1		409.3
Less: Net income attributable to non-controlling interest																	0		0		0
Net income attributable to Express Scripts																	820.6		881.1		409.3
Other comprehensive income (loss), net of tax																	0		0		0
Comprehensive income attributable to Express Scripts																	820.6		881.1		409.3
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues																	1,517.7		1,329.8		157.1
Operating expenses																	1,037.7		1,136.7		124.7
Operating income																	480.0		193.1		32.4
Total other (expense) income																	(10.6)		11.9		0.6
Income before taxes																	469.4		205.0		33.0
Provision for income taxes																	131.9		0.1		5.0
Net income (loss) from continuing operations																	337.5		204.9		28.0
Net loss from discontinued operations, net of tax																	(53.6)		(32.3)
Equity in earnings of subsidiaries																	0		0		0
Net income																	283.9		172.6		28.0
Less: Net income attributable to non-controlling interest																	28.1		17.2		2.7
Net income attributable to Express Scripts																	255.8		155.4		25.3
Other comprehensive income (loss), net of tax																	(7.2)		1.9		(2.8)
Comprehensive income attributable to Express Scripts																	248.6		157.3		22.5
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues																	(3,357.4)		(2,472.1)		0
Operating expenses																	(3,357.4)		(2,472.1)		0
Operating income																	0		0		0
Total other (expense) income																	0		0		0
Income before taxes																	0		0		0
Provision for income taxes																	0		0		0
Net income (loss) from continuing operations																	0		0		0
Net loss from discontinued operations, net of tax																	0		0
Equity in earnings of subsidiaries																	(3,140.1)		(2,581.0)		(1,724.5)
Net income																	(3,140.1)		(2,581.0)		(1,724.5)
Less: Net income attributable to non-controlling interest																	0		0		0
Net income attributable to Express Scripts																	(3,140.1)		(2,581.0)		(1,724.5)
Other comprehensive income (loss), net of tax																	14.4		(3.8)		5.6
Comprehensive income attributable to Express Scripts																	$ (3,125.7)		$ (2,584.8)		$ (1,718.9)

[1] Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

[2] Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

[3] Includes the April 2, 2012 acquisition of Medco.

[4] Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.

XML

Summary of significant accounting policies - Reconciliation Between Weighted Average Shares Used in Basic and Diluted Earnings Per Share Calculation (Detail) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Accounting Policies [Abstract]
Weighted-average number of common shares outstanding during the period – Basic	808.6	[1]	731.3		500.9
Outstanding stock options, stock-settled stock appreciation rights, restricted stock units and executive deferred compensation units	13.0	[1],[2]	16.0	[2]	4.1	[2]
Weighted-average number of common shares outstanding during the period – Diluted	821.6	[1],[3]	747.3	[3]	505.0	[3]

[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.

XML

Schedule - II - Valuation and Qualifying Accounts and Reserves of Continuing Operations (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Allowance for Doubtful Accounts Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 132.5		$ 55.6		$ 64.8
Additions Charges to Costs and Expenses	115.7		145.8		11.6
Additions Charges to Other Accounts	0		0		0
Deductions	46.0	[1]	68.9	[1]	20.8	[1]
Balance at End of Period	202.2		132.5		55.6
Valuation Allowance for Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	35.4		25.1		23.2
Additions Charges to Costs and Expenses	31.5		4.2		1.9
Additions Charges to Other Accounts	0		6.1		0
Deductions	0	[1]	0	[1]	0	[1]
Balance at End of Period	$ 66.9		$ 35.4		$ 25.1

[1] Except as otherwise described, these deductions are primarily write-offs of receivable amounts, net of any recoveries.

XML

CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Retail pharmacy co-payments included in network revenues	$ 2,775.1	$ 2,966.5	$ 3,204.3	$ 3,674.4	$ 3,304.0	$ 3,348.9	$ 3,519.1	$ 1,496.6	$ 12,620.3	$ 11,668.6	$ 5,786.6

XML

Pension and other postretirement benefits - Pension and Other Postretirement Benefits Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Apr. 02, 2012	Dec. 31, 2013 Pension Benefits [Member]	Dec. 31, 2012 Pension Benefits [Member]	Dec. 31, 2013 Other Postretirement Benefits [Member]	Dec. 31, 2012 Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Accrued expenses		$ 0	$ 0	$ 0.3	$ 0.5
Other Postretirement Defined Benefit Plan, Liabilities, Noncurrent		46.4	61.6	1.8	2.1
Total pension and other postretirement liabilities	$ 74.3	$ 46.4	$ 61.6	$ 2.1	$ 2.6

XML

Fair value measurements

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Fair value measurements

2. Fair value measurements

FASB guidance regarding fair value measurement establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than quoted prices for similar assets and liabilities in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions.

Financial assets accounted for at fair value on a recurring basis include cash equivalents of $845.2 million and $1,572.3 million, restricted cash and investments of $22.8 million and $19.6 million, and trading securities (included in other assets) of $18.7 million and $15.8 million, at December 31, 2013 and 2012, respectively. These assets are carried at fair value based on quoted market prices in active markets for identical securities (Level 1 inputs). Cash equivalents include investments in AAA-rated money market mutual funds with maturities of less than 90 days.

FASB guidance allows a company to elect to measure eligible financial assets and financial liabilities at fair value. Unrealized gains and losses on items for which the fair value option has been elected are reported in earnings at each subsequent reporting date. Eligible items include, but are not limited to, accounts and loans receivable, equity method investments, accounts payable, guarantees, issued debt and firm commitments. Currently, we have not elected to account for any of our eligible items using the fair value option under this guidance.

The carrying value of cash and cash equivalents (Level 1), restricted cash and investments (Level 1), 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 (Level 2) was estimated using the current rates offered to us for debt with similar maturity. The carrying values and the fair values of our senior notes are shown, net of unamortized discounts and premiums, in the following table:

	December 31, 2013				December 31, 2012
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
March 2008 Senior Notes
7.125% senior notes due 2018	$	1,378.5	$	1,420.4	$	1,417.2	$	1,497.3
6.125% senior notes due 2013	—		—		303.3		303.0
	1,378.5		1,420.4		1,720.5		1,800.3
June 2009 Senior Notes
6.250% senior notes due 2014	—		—		998.7		1,076.4
7.250% senior notes due 2019	497.9		607.8		497.6		645.1
	497.9		607.8		1,496.3		1,721.5
September 2010 Senior Notes
2.750% senior notes due 2015	506.9		514.9		510.9		522.4
4.125% senior notes due 2020	506.8		519.7		507.6		546.1
	1,013.7		1,034.6		1,018.5		1,068.5
May 2011 Senior Notes
3.125% senior notes due 2016	1,497.0		1,566.2		1,495.8		1,590.2
November 2011 Senior Notes
3.500% senior notes due 2016	1,249.8		1,324.4		1,249.7		1,347.8
4.750% senior notes due 2021	1,241.2		1,325.4		1,240.3		1,425.7
2.750% senior notes due 2014	899.7		917.1		899.4		930.8
6.125% senior notes due 2041	698.4		801.0		698.4		894.6
	4,089.1		4,367.9		4,087.8		4,598.9
February 2012 Senior Notes
2.650% senior notes due 2017	1,490.7		1,548.0		1,487.9		1,559.6
2.100% senior notes due 2015	998.1		1,014.4		996.5		1,023.7
3.900% senior notes due 2022	981.9		1,003.4		980.0		1,073.3
	3,470.7		3,565.8		3,464.4		3,656.6
Total	$	11,946.9	$	12,562.7	$	13,283.3	$	14,436.0

The fair values of our senior notes were estimated based on observable market information (Level 2). In determining the fair value of liabilities, we took into consideration the risk of nonperformance. Nonperformance risk refers to the risk that the obligation will not be fulfilled and affects the value at which the liability would be transferred to a market participant. This risk did not have a material impact on the fair value of our liabilities.

XML

Goodwill and other intangible assets - Summary of Goodwill and Other Intangible Assets (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2013
Goodwill [Line Items]
Goodwill, reduction from purchase price allocation		$ 12.7	[1]
Pbm [Member]
Goodwill [Line Items]
Goodwill, reduction from purchase price allocation	12.7	12.7	[1]
Other Business Operations [Member]
Goodwill [Line Items]
Goodwill, reduction from purchase price allocation		0	[1]
Customer Contracts [Member] | Pbm [Member]
Goodwill [Line Items]
Increase (decrease) in finite-lived intangible assets		(84.4)
Increase (decrease) in accumulated amortization of finite lived intangible assets		(84.4)
Miscellaneous Intangible Assets [Member] | Pbm [Member]
Goodwill [Line Items]
Increase (decrease) in finite-lived intangible assets		(10.0)
Increase (decrease) in accumulated amortization of finite lived intangible assets		(10.0)
Customer Relationships [Member] | Other Business Operations [Member]
Goodwill [Line Items]
Increase (decrease) in finite-lived intangible assets		(11.2)
Increase (decrease) in accumulated amortization of finite lived intangible assets		$ (11.2)

[1] Goodwill associated with the Merger has been adjusted due to the finalization of the purchase price allocation during the first quarter of 2013.

XML

Employee benefit plans and stock-based compensation plans - Status of Stock options and SSRs (Detail) (Stock options and SSR [Member], USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Stock options and SSR [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
ESI outstanding at beginning of year (shares)	44.2
Granted (shares)	3.3
Exercised (shares)	(14.6)
Forfeited/cancelled (shares)	(1.0)
Outstanding at end of period (shares)	31.9
Awards exercisable at period end (shares)	23.7
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
ESI outstanding at beginning of year (usd per share)	$ 40.71
Weighted Average Exercise Price, Granted (usd per share)	$ 58.34
Weighted Average Exercise Price, Exercised (usd per share)	$ 37.56
Weighted Average Exercise Price, Forfeited/cancelled (usd per share)	$ 54.11
Weighted Average Exercise Price, Outstanding at end of period (usd per share)	$ 43.56
Weighted Average Exercise Price, Awards exercisable at period end (usd per share)	$ 40.26
Weighted Average Remaining Contractual Life, Outstanding at end of period (usd per share)	5 years 3 months
Weighted Average Remaining Contractual Life, Awards exercisable at period end (usd per share)	5 years
Aggregate Intrinsic Value, Outstanding at end of period (usd per share)	$ 852.3	[1]
Aggregate Intrinsic Value, Awards exercisable at period end (usd per share)	$ 709.8	[1]

[1] Amount by which the market value of the underlying stock exceeds the exercise price of the option.

XML

Condensed consolidating financial information - Condensed Consolidating Statement of Cash Flows (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	$ 4,757.5	$ 4,781.6	$ 2,193.1
Cash flows from investing activities:
Purchases of property and equipment	(423.0)	(160.2)	(144.4)
Proceeds from the sale of business	356.9	61.5	0
Acquisitions, net of cash acquired	(14.5)	(10,326.0)	0
Other	10.6	(4.0)	20.5
Net cash used in investing activities—continuing operations	(70.0)	(10,428.7)	(123.9)
Acquisitions, cash acquired - discontinued operations	0	42.4	0
Net cash used in investing activities - discontinued operations	(2.1)	(5.4)	0
Net cash used in investing activities	(72.1)	(10,391.7)	(123.9)
Cash flows from financing activities:
Treasury stock acquired	(4,055.2)	0	(2,515.7)
Repayment of long-term debt	(1,931.6)	(3,868.5)	(0.1)
Net proceeds from employee stock plans	466.0	326.0	32.2
Excess tax benefit relating to employee stock-based compensation	42.7	45.3	28.3
Distributions paid to non-controlling interest	(31.7)	(8.1)	(1.1)
Proceeds from long-term debt, net of discounts	0	7,458.9	5,580.3
Repayments of Long-term Lines of Credit	0	(1,000.0)	0
Proceeds from accounts receivable financing facility	0	600.0	0
Repayments of Accounts Receivable Securitization	0	(600.0)	0
Deferred financing fees	0	103.2	91.6
Other	15.0	0	(2.9)
Net Intercompany Transactions	0	0	0
Net cash (used in) provided by financing activities—continuing operations	(5,494.8)	2,850.4	3,029.4
Net cash used in financing activities - discontinued operations	0	(26.8)	0
Net cash (used in) provided by financing activities	(5,494.8)	2,823.6	3,029.4
Effect of foreign currency translation adjustment	(5.7)	2.0	(2.2)
Less cash decrease (increase) attributable to discontinued operations	13.4	(42.5)	0
Net (decrease) increase in cash and cash equivalents	(801.7)	(2,827.0)	5,096.4
Cash and cash equivalents at beginning of year	2,793.1	5,620.1	523.7
Cash and cash equivalents at end of year	1,991.4	2,793.1	5,620.1
Express Scripts Holding Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	(214.1)	(147.3)	(14.1)
Cash flows from investing activities:
Purchases of property and equipment	0	0	0
Proceeds from the sale of business	0	0
Acquisitions, net of cash acquired	0	(10,283.6)
Other	0	0	0
Net cash used in investing activities—continuing operations	0	(10,283.6)
Acquisitions, cash acquired - discontinued operations		0
Net cash used in investing activities - discontinued operations	0	0
Net cash used in investing activities	0	(10,283.6)	0
Cash flows from financing activities:
Treasury stock acquired	(4,055.2)		0
Repayment of long-term debt	(631.6)	(1,368.4)	0
Net proceeds from employee stock plans	466.0	295.2	0
Excess tax benefit relating to employee stock-based compensation	0	0	0
Distributions paid to non-controlling interest			0
Proceeds from long-term debt, net of discounts		7,458.9	4,086.3
Repayments of Long-term Lines of Credit		0
Proceeds from accounts receivable financing facility		0
Repayments of Accounts Receivable Securitization		0
Deferred financing fees		52.4	29.2
Other	0		0
Net Intercompany Transactions	4,434.9	4,097.6	(4,043.0)
Net cash (used in) provided by financing activities—continuing operations	214.1	10,430.9
Net cash used in financing activities - discontinued operations	0	0
Net cash (used in) provided by financing activities	214.1	10,430.9	14.1
Effect of foreign currency translation adjustment	0	0	0
Less cash decrease (increase) attributable to discontinued operations	0	0
Net (decrease) increase in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	0	0	0
Express Scripts, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	2,731.3	655.1	1,426.4
Cash flows from investing activities:
Purchases of property and equipment	(398.3)	(70.0)	(124.9)
Proceeds from the sale of business	1.6	31.5
Acquisitions, net of cash acquired	0	0
Other	14.0	(5.0)	(1.0)
Net cash used in investing activities—continuing operations	(382.7)	(43.5)
Acquisitions, cash acquired - discontinued operations		0
Net cash used in investing activities - discontinued operations	0	0
Net cash used in investing activities	(382.7)	(43.5)	(125.9)
Cash flows from financing activities:
Treasury stock acquired	0		(2,515.7)
Repayment of long-term debt	(1,000.0)	(1,000.1)	(0.1)
Net proceeds from employee stock plans	0	0	32.2
Excess tax benefit relating to employee stock-based compensation	26.6	37.2	28.3
Distributions paid to non-controlling interest			0
Proceeds from long-term debt, net of discounts		0	1,494.0
Repayments of Long-term Lines of Credit		0
Proceeds from accounts receivable financing facility		0
Repayments of Accounts Receivable Securitization		0
Deferred financing fees		50.8	62.4
Other	0		(2.9)
Net Intercompany Transactions	(2,575.9)	(2,773.5)	4,791.6
Net cash (used in) provided by financing activities—continuing operations	(3,549.3)	(3,787.2)
Net cash used in financing activities - discontinued operations	0	0
Net cash (used in) provided by financing activities	(3,549.3)	(3,787.2)	3,765.0
Effect of foreign currency translation adjustment	0	0	0
Less cash decrease (increase) attributable to discontinued operations	0	0
Net (decrease) increase in cash and cash equivalents	(1,200.7)	(3,175.6)	5,065.5
Cash and cash equivalents at beginning of year	2,346.6	5,522.2	456.7
Cash and cash equivalents at end of year	1,145.9	2,346.6	5,522.2
Medco Health Solutions, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	765.9	3,355.4	0
Cash flows from investing activities:
Purchases of property and equipment	0	0	0
Proceeds from the sale of business	0	30.0
Acquisitions, net of cash acquired	0	0
Other	0	0	0
Net cash used in investing activities—continuing operations	0	30.0
Acquisitions, cash acquired - discontinued operations		0
Net cash used in investing activities - discontinued operations	0	0
Net cash used in investing activities	0	30.0	0
Cash flows from financing activities:
Treasury stock acquired	0		0
Repayment of long-term debt	(300.0)	(1,500.0)	0
Net proceeds from employee stock plans	0	30.8	0
Excess tax benefit relating to employee stock-based compensation	16.1	8.1	0
Distributions paid to non-controlling interest			0
Proceeds from long-term debt, net of discounts		0	0
Repayments of Long-term Lines of Credit		(1,000.0)
Proceeds from accounts receivable financing facility		0
Repayments of Accounts Receivable Securitization		0
Deferred financing fees		0	0
Other	0		0
Net Intercompany Transactions	(478.4)	(924.3)	0
Net cash (used in) provided by financing activities—continuing operations	(762.3)	(3,385.4)
Net cash used in financing activities - discontinued operations	0	0
Net cash (used in) provided by financing activities	(762.3)	(3,385.4)	0
Effect of foreign currency translation adjustment	0	0	0
Less cash decrease (increase) attributable to discontinued operations	0	0
Net (decrease) increase in cash and cash equivalents	3.6	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	3.6	0	0
Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	556.0	916.7	753.1
Cash flows from investing activities:
Purchases of property and equipment	(16.5)	(85.9)	(13.4)
Proceeds from the sale of business	355.3	0
Acquisitions, net of cash acquired	0	0
Other	0	0	1.3
Net cash used in investing activities—continuing operations	338.8	(85.9)
Acquisitions, cash acquired - discontinued operations		0
Net cash used in investing activities - discontinued operations	0	(3.8)
Net cash used in investing activities	338.8	(89.7)	(12.1)
Cash flows from financing activities:
Treasury stock acquired	0		0
Repayment of long-term debt	0	0	0
Net proceeds from employee stock plans	0	0	0
Excess tax benefit relating to employee stock-based compensation	0	0	0
Distributions paid to non-controlling interest			0
Proceeds from long-term debt, net of discounts		0	0
Repayments of Long-term Lines of Credit		0
Proceeds from accounts receivable financing facility		0
Repayments of Accounts Receivable Securitization		0
Deferred financing fees		0	0
Other	(13.0)		0
Net Intercompany Transactions	(964.7)	(705.5)	(744.6)
Net cash (used in) provided by financing activities—continuing operations	(977.7)	(705.5)
Net cash used in financing activities - discontinued operations	0	0
Net cash (used in) provided by financing activities	(977.7)	(705.5)	(744.6)
Effect of foreign currency translation adjustment	0	0	0
Less cash decrease (increase) attributable to discontinued operations	0	0
Net (decrease) increase in cash and cash equivalents	(82.9)	121.5	(3.6)
Cash and cash equivalents at beginning of year	126.9	5.4	9.0
Cash and cash equivalents at end of year	44.0	126.9	5.4
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	929.1	1.7	27.7
Cash flows from investing activities:
Purchases of property and equipment	(8.2)	(4.3)	(6.1)
Proceeds from the sale of business	0	0
Acquisitions, net of cash acquired	(14.5)	(42.4)
Other	(3.4)	1.0	20.2
Net cash used in investing activities—continuing operations	(26.1)	(45.7)
Acquisitions, cash acquired - discontinued operations		42.4
Net cash used in investing activities - discontinued operations	(2.1)	(1.6)
Net cash used in investing activities	(28.2)	(4.9)	14.1
Cash flows from financing activities:
Treasury stock acquired	0		0
Repayment of long-term debt	0	0	0
Net proceeds from employee stock plans	0	0	0
Excess tax benefit relating to employee stock-based compensation	0	0	0
Distributions paid to non-controlling interest	(31.7)	(8.1)	(1.1)
Proceeds from long-term debt, net of discounts		0	0
Repayments of Long-term Lines of Credit		0
Proceeds from accounts receivable financing facility		600.0
Repayments of Accounts Receivable Securitization		(600.0)
Deferred financing fees		0	0
Other	28.0		0
Net Intercompany Transactions	(415.9)	305.7	(4.0)
Net cash (used in) provided by financing activities—continuing operations	(419.6)	297.6
Net cash used in financing activities - discontinued operations	(10.7)	(26.8)
Net cash (used in) provided by financing activities	(430.3)	270.8	(5.1)
Effect of foreign currency translation adjustment	(5.7)	2.0	(2.2)
Less cash decrease (increase) attributable to discontinued operations	13.4	(42.5)
Net (decrease) increase in cash and cash equivalents	478.3	227.1	34.5
Cash and cash equivalents at beginning of year	319.6	92.5	58.0
Cash and cash equivalents at end of year	797.9	319.6	92.5
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash flows provided by (used in) operating activities	(10.7)	0	0
Cash flows from investing activities:
Purchases of property and equipment	0	0	0
Proceeds from the sale of business	0	0
Acquisitions, net of cash acquired	0	0
Other	0	0	0
Net cash used in investing activities—continuing operations	0	0
Acquisitions, cash acquired - discontinued operations		0
Net cash used in investing activities - discontinued operations	0	0
Net cash used in investing activities	0	0	0
Cash flows from financing activities:
Treasury stock acquired	0		0
Repayment of long-term debt	0	0	0
Net proceeds from employee stock plans	0	0	0
Excess tax benefit relating to employee stock-based compensation	0	0	0
Distributions paid to non-controlling interest			0
Proceeds from long-term debt, net of discounts		0	0
Repayments of Long-term Lines of Credit		0
Proceeds from accounts receivable financing facility		0
Repayments of Accounts Receivable Securitization		0
Deferred financing fees		0	0
Other	0		0
Net Intercompany Transactions	0	0	0
Net cash (used in) provided by financing activities—continuing operations	0	0
Net cash used in financing activities - discontinued operations	10.7	0
Net cash (used in) provided by financing activities	10.7	0	0
Effect of foreign currency translation adjustment	0	0	0
Less cash decrease (increase) attributable to discontinued operations	0	0
Net (decrease) increase in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	$ 0	$ 0	$ 0

XML

Income taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
Income before income taxes	$ 3,030.3	$ 2,200.4	$ 2,027.1
Income tax expense	1,104.0	838.0	748.6
Cumulative undistributed foreign earnings	82.2	65.6	53.7
United state income taxes on foreign subsidiaries upon distribution	30.0
Effective tax rate	36.40%	38.10%	37.00%
Discrete tax benefit	51.2	8.2
Tax effect from discontinued operations	28.7	7.5
Valuation allowance of deferred tax assets	66.9	34.7
Uncertain tax positions	451.4
Interest and penalties	22.8	19.6	(7.0)
Subsidiary Company [Member]
Income Taxes [Line Items]
Accrued interest and penalties through acquisition accounting	2.4	55.4
Accrued interest and penalties	105.8	80.6
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
State and foreign net operating carryforwards	46.5
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Income before income taxes	42.7	14.6	(2.3)
State and foreign net operating carryforwards	29.7
State and Foreign Tax Authorities [Member]
Income Taxes [Line Items]
Valuation allowance of deferred tax assets	$ 64.9
Minimum [Member]
Income Taxes [Line Items]
State and foreign net operating carryforwards term	Jan. 01, 2014
Maximum [Member]
Income Taxes [Line Items]
State and foreign net operating carryforwards term	Dec. 31, 2033
Discontinued Operations [Member]
Income Taxes [Line Items]
Effective tax rate	(115.10%)	(30.50%)

XML

Fair value measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Carrying Value and Fair Value of Senior Notes

The carrying values and the fair values of our senior notes are shown, net of unamortized discounts and premiums, in the following table:

	December 31, 2013				December 31, 2012
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
March 2008 Senior Notes
7.125% senior notes due 2018	$	1,378.5	$	1,420.4	$	1,417.2	$	1,497.3
6.125% senior notes due 2013	—		—		303.3		303.0
	1,378.5		1,420.4		1,720.5		1,800.3
June 2009 Senior Notes
6.250% senior notes due 2014	—		—		998.7		1,076.4
7.250% senior notes due 2019	497.9		607.8		497.6		645.1
	497.9		607.8		1,496.3		1,721.5
September 2010 Senior Notes
2.750% senior notes due 2015	506.9		514.9		510.9		522.4
4.125% senior notes due 2020	506.8		519.7		507.6		546.1
	1,013.7		1,034.6		1,018.5		1,068.5
May 2011 Senior Notes
3.125% senior notes due 2016	1,497.0		1,566.2		1,495.8		1,590.2
November 2011 Senior Notes
3.500% senior notes due 2016	1,249.8		1,324.4		1,249.7		1,347.8
4.750% senior notes due 2021	1,241.2		1,325.4		1,240.3		1,425.7
2.750% senior notes due 2014	899.7		917.1		899.4		930.8
6.125% senior notes due 2041	698.4		801.0		698.4		894.6
	4,089.1		4,367.9		4,087.8		4,598.9
February 2012 Senior Notes
2.650% senior notes due 2017	1,490.7		1,548.0		1,487.9		1,559.6
2.100% senior notes due 2015	998.1		1,014.4		996.5		1,023.7
3.900% senior notes due 2022	981.9		1,003.4		980.0		1,073.3
	3,470.7		3,565.8		3,464.4		3,656.6
Total	$	11,946.9	$	12,562.7	$	13,283.3	$	14,436.0

XML

Income taxes - Unrecognized Tax Benefits Roll-Forward (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended						3 Months Ended	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011		Mar. 31, 2013 Medco Income Tax Contingencies [Member]	Dec. 31, 2013 Disposition of Previous acquisition [Member]
Reconciliation Of Unrecognized Tax Benefits Excluding Amounts Pertaining To Examined Tax Returns Roll Forward [Line Items]
Acquired Medco income tax contingencies	$ 637.3	[1],[2]	$ 392.7	[1],[2]	$ 7.3	[1],[2]	$ 50.4	$ 544.9
Reductions for tax positions related to prior years	$ 92.0	[1]	$ 1.3	[1]	$ 30.3	[1]	$ 8.3

[1] Includes $50.4 million additions and $8.3 million reductions of Medco income tax contingencies recorded through the allocation of Medco’s purchase price for the quarter ended March 31, 2013.

[2] Includes $544.9 million in additions related to a claimed loss in 2012 on the disposition of Liberty.

XML

Condensed consolidating financial information (Tables)

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Error Corrections and Prior Period Adjustments

The impact of the measurement period adjustment is to reallocate goodwill and intercompany amounts as follows:

(in millions)	Medco Health Solutions, Inc.			Guarantors			Non-guarantors			Eliminations
Intercompany assets	$	(2,040.0	)	$	2,000.5		$	—		$	39.5
Goodwill	$	2,040.0		$	(2,000.5	)	$	39.5		$	—
Intercompany liabilities	$	—		$	—		$	(39.5	)	$	39.5

Condensed Consolidating Balance Sheet

Condensed Consolidating Balance Sheet
(in millions)	Express Scripts Holding Company		Express Scripts, Inc.		Medco Health Solutions, Inc.		Guarantors		Non- Guarantors		Eliminations			Consolidated
As of December 31, 2013
Cash and cash equivalents	$	—	$	1,145.9	$	3.6	$	44.0	$	797.9	$	—		$	1,991.4
Restricted cash and investments	—		—		1.0		—		21.8		—			22.8
Receivables, net	—		1,381.3		750.5		1,557.1		334.0		—			4,022.9
Other current assets	—		99.8		286.4		2,010.4		26.7		—			2,423.3
Current assets of discontinued operations	—		—		—		—		31.0		—			31.0
Total current assets	—		2,627.0		1,041.5		3,611.5		1,211.4		—			8,491.4
Property and equipment, net	—		550.3		5.4		1,082.7		20.5		—			1,658.9
Investments in subsidiaries	36,060.9		9,096.2		12,089.8		—		—		(57,246.9		)	—
Intercompany	—		—		—		14,247.9		—		(14,247.9		)	—
Goodwill	—		2,921.4		22,608.1		3,750.3		25.6		—			29,305.4
Other intangible assets, net	51.7		1,071.7		10,946.8		1,926.0		19.4		—			14,015.6
Other assets	—		79.9		16.5		3.9		12.2		(35.6		)	76.9
Total assets	$	36,112.6	$	16,346.5	$	46,708.1	$	24,622.3	$	1,289.1	$	(71,530.4	)	$	53,548.2
Claims and rebates payable	$	—	$	3,866.2	$	2,901.6	$	—	$	—	$	—		$	6,767.8
Accounts payable	—		875.1		62.7		1,834.9		127.3		—			2,900.0
Accrued expenses	45.3		455.9		241.0		615.5		624.5		—			1,982.2
Current maturities of long-term debt	1,583.9		0.1		—		—		—		—			1,584.0
Current liabilities of discontinued operations	—		—		—		—		1.3		—			1.3
Total current liabilities	1,629.2		5,197.3		3,205.3		2,450.4		753.1		—			13,235.3
Long-term debt	7,975.9		1,994.9		2,392.2		—		—		—			12,363.0
Intercompany	4,670.1		6,328.1		3,222.2		—		27.5		(14,247.9		)	—
Deferred taxes	—		—		4,034.7		1,386.4		19.5		—			5,440.6
Other liabilities	—		199.1		419.9		79.0		2.0		(35.6		)	664.4
Noncurrent liabilities of discontinued operations	—		—		—		—		0.1		—			0.1
Non-controlling interest	—		—		—		—		7.4		—			7.4
Express Scripts stockholders’ equity	21,837.4		2,627.1		33,433.8		20,706.5		479.5		(57,246.9		)	21,837.4
Total liabilities and stockholders’ equity	$	36,112.6	$	16,346.5	$	46,708.1	$	24,622.3	$	1,289.1	$	(71,530.4	)	$	53,548.2

Condensed Consolidating Balance Sheet
(in millions)	Express Scripts Holding Company		Express Scripts, Inc.		Medco Health Solutions, Inc.		Guarantors		Non- Guarantors		Eliminations			Consolidated
As of December 31, 2012
Cash and cash equivalents	$	—	$	2,346.6	$	—	$	126.9	$	319.6	$	—		$	2,793.1
Restricted cash and investments	—		—		—		1.0		18.6		—			19.6
Receivables, net	—		1,097.8		2,330.0		1,493.0		505.0		—			5,425.8
Other current assets	—		119.2		306.6		1,800.4		20.8		—			2,247.0
Current assets of discontinued operations	—		—		—		—		271.4		—			271.4
Total current assets	—		3,563.6		2,636.6		3,421.3		1,135.4		—			10,756.9
Property and equipment, net	—		305.7		—		1,307.2		19.2		—			1,632.1
Investments in subsidiaries	31,375.6		8,292.7		5,121.0		—		—		(44,789.3		)	—
Intercompany	2,189.0		—		926.8		6,127.2		—		(9,243.0		)	—
Goodwill	—		2,921.4		22,621.5		3,750.3		27.2		—			29,320.4
Other intangible assets, net	67.1		1,192.4		12,609.4		2,153.6		15.4		—			16,037.9
Other assets	—		57.4		14.4		5.9		4.7		(26.3		)	56.1
Noncurrent assets of discontinued operations	—		—		—		—		307.8		—			307.8
Total assets	$	33,631.7	$	16,333.2	$	43,929.7	$	16,765.5	$	1,509.7	$	(54,058.6	)	$	58,111.2
Claims and rebates payable	$	—	$	2,554.1	$	4,885.9	$	—	$	—	$	—		$	7,440.0
Accounts payable	—		477.5		—		2,284.5		136.9		—			2,898.9
Accrued expenses	62.9		428.3		327.8		612.0		201.9		—			1,632.9
Current maturities of long-term debt	631.6		0.1		303.2		—		—		—			934.9
Current liabilities of discontinued operations	—		—		—		—		150.7		—			150.7
Total current liabilities	694.5		3,460.0		5,516.9		2,896.5		489.5		—			13,057.4
Long-term debt	9,552.2		2,992.1		2,435.8		—		—		—			14,980.1
Intercompany	—		8,764.5		—		—		478.5		(9,243.0		)	—
Deferred taxes	—		—		5,074.7		861.8		—		—			5,936.5
Other liabilities	—		158.7		484.6		73.1		2.8		(26.3		)	692.9
Noncurrent liabilities of discontinued operations	—		—		—		—		48.6		—			48.6
Non-controlling interest	—		—		—		—		10.7		—			10.7
Express Scripts stockholders’ equity	23,385.0		957.9		30,417.7		12,934.1		479.6		(44,789.3		)	23,385.0
Total liabilities and stockholders’ equity	$	33,631.7	$	16,333.2	$	43,929.7	$	16,765.5	$	1,509.7	$	(54,058.6	)	$	58,111.2

Condensed Consolidating Statement of Operations

Condensed Consolidating Statement of Operations
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2013
Revenues	$	—		$	29,927.9		$	52,736.8		$	23,273.8		$	1,517.7		$	(3,357.4	)	$	104,098.8
Operating expenses	—			28,380.5			52,498.3			21,988.0			1,037.7			(3,357.4		)	100,547.1
Operating income	—			1,547.4			238.5			1,285.8			480.0			—			3,551.7
Other (expense) income, net	(343.9		)	(148.8		)	(23.5		)	5.4			(10.6		)	—			(521.4		)
Income (loss) before income taxes	(343.9		)	1,398.6			215.0			1,291.2			469.4			—			3,030.3
Provision (benefit) for income taxes	(124.8		)	533.0			93.3			470.6			131.9			—			1,104.0
Net income (loss) from continuing operations	(219.1		)	865.6			121.7			820.6			337.5			—			1,926.3
Net loss from discontinued operations, net of tax	—			—			—			—			(53.6		)	—			(53.6		)
Equity in earnings of subsidiaries	2,063.7			803.5			272.9			—			—			(3,140.1		)	—
Net income	$	1,844.6		$	1,669.1		$	394.6		$	820.6		$	283.9		$	(3,140.1	)	$	1,872.7
Less: Net income attributable to non-controlling interest	—			—			—			—			28.1			—			28.1
Net income attributable to Express Scripts	1,844.6			1,669.1			394.6			820.6			255.8			(3,140.1		)	1,844.6
Other comprehensive loss, net of tax	(7.2		)	(7.2		)	—			—			(7.2		)	14.4			(7.2		)
Comprehensive income attributable to Express Scripts	$	1,837.4		$	1,661.9		$	394.6		$	820.6		$	248.6		$	(3,125.7	)	$	1,837.4
For the year ended December 31, 2012
Revenues	$	—		$	29,763.1		$	43,085.7		$	22,007.8		$	1,329.8		$	(2,472.1	)	$	93,714.3
Operating expenses	—			28,591.8			43,090.3			20,573.7			1,136.7			(2,472.1		)	90,920.4
Operating income	—			1,171.3			(4.6		)	1,434.1			193.1			—			2,793.9
Other (expense) income, net	(373.7		)	(180.1		)	(49.4		)	(2.2		)	11.9			—			(593.5		)
Income (loss) before income taxes	(373.7		)	991.2			(54.0		)	1,431.9			205.0			—			2,200.4
Provision (benefit) for income taxes	(142.1		)	449.6			(20.4		)	550.8			0.1			—			838.0
Net income (loss) from continuing operations	(231.6		)	541.6			(33.6		)	881.1			204.9			—			1,362.4
Net loss from discontinued operations, net of tax	—			—			—			—			(32.3		)	—			(32.3		)
Equity in earnings of subsidiaries	1,544.5			740.0			296.5			—			—			(2,581.0		)	—
Net income	$	1,312.9		$	1,281.6		$	262.9		$	881.1		$	172.6		$	(2,581.0	)	$	1,330.1
Less: Net income attributable to non-controlling interest	—			—			—			—			17.2			—			17.2
Net income attributable to Express Scripts	1,312.9			1,281.6			262.9			881.1			155.4			(2,581.0		)	1,312.9
Other comprehensive income, net of tax	1.9			1.9			—			—			1.9			(3.8		)	1.9
Comprehensive income attributable to Express Scripts	$	1,314.8		$	1,283.5		$	262.9		$	881.1		$	157.3		$	(2,584.8	)	$	1,314.8

Condensed Consolidating Statement of Operations
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.		Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2011
Revenues	$	—		$	29,450.9		$	—	$	16,520.3		$	157.1		$	—		$	46,128.3
Operating expenses	—			27,847.9			—		15,841.3			124.7			—			43,813.9
Operating income	—			1,603.0			—		679.0			32.4			—			2,314.4
Other (expense) income, net	(22.2		)	(259.8		)	—		(5.9		)	0.6			—			(287.3		)
Income (loss) before income taxes	(22.2		)	1,343.2			—		673.1			33.0			—			2,027.1
Provision (benefit) for income taxes	(8.1		)	487.9			—		263.8			5.0			—			748.6
Net income (loss) from continuing operations	(14.1		)	855.3			—		409.3			28.0			—			1,278.5
Equity in earnings of subsidiaries	1,289.9			434.6			—		—			—			(1,724.5		)	—
Net income	$	1,275.8		$	1,289.9		$	—	$	409.3		$	28.0		$	(1,724.5	)	$	1,278.5
Less: Net income attributable to non-controlling interest	—			—			—		—			2.7			—			2.7
Net income attributable to Express Scripts	1,275.8			1,289.9			—		409.3			25.3			(1,724.5		)	1,275.8
Other comprehensive loss, net of tax	(2.8		)	(2.8		)	—		—			(2.8		)	5.6			(2.8		)
Comprehensive income attributable to Express Scripts	$	1,273.0		$	1,287.1		$	—	$	409.3		$	22.5		$	(1,718.9	)	$	1,273.0

Condensed Consolidating Statement of Cash Flows

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations			Consolidated
For the year ended December 31, 2013
Net cash flows provided by (used in) operating activities	$	(214.1	)	$	2,731.3		$	765.9		$	556.0		$	929.1		$	(10.7	)	$	4,757.5
Cash flows from investing activities:
Purchases of property and equipment	—			(398.3		)	—			(16.5		)	(8.2		)	—			(423.0		)
Proceeds from the sale of business	—			1.6			—			355.3			—			—			356.9
Acquisitions, net of cash acquired	—			—			—			—			(14.5		)	—			(14.5		)
Other	—			14.0			—			—			(3.4		)	—			10.6
Net cash (used in) provided by investing activities—continuing operations	—			(382.7		)	—			338.8			(26.1		)	—			(70.0		)
Net cash used in investing activities—discontinued operations	—			—			—			—			(2.1		)	—			(2.1		)
Net cash (used in) provided by investing activities	—			(382.7		)	—			338.8			(28.2		)	—			(72.1		)
Cash flows from financing activities:
Treasury stock acquired	(4,055.2		)	—			—			—			—			—			(4,055.2		)
Repayment of long-term debt	(631.6		)	(1,000.0		)	(300.0		)	—			—			—			(1,931.6		)
Net proceeds from employee stock plans	466.0			—			—			—			—			—			466.0
Excess tax benefit relating to employee stock-based compensation	—			26.6			16.1			—			—			—			42.7
Distributions paid to non-controlling interest	—			—			—			—			(31.7		)	—			(31.7		)
Other	—			—			—			(13.0		)	28.0			—			15.0
Net intercompany transactions	4,434.9			(2,575.9		)	(478.4		)	(964.7		)	(415.9		)	—			—
Net cash (used in) provided by financing activities—continuing operations	214.1			(3,549.3		)	(762.3		)	(977.7		)	(419.6		)	—			(5,494.8		)
Net cash used in financing activities— discontinued operations	—			—			—			—			(10.7		)	10.7			—
Net cash (used in) provided by financing activities	214.1			(3,549.3		)	(762.3		)	(977.7		)	(430.3		)	10.7			(5,494.8		)
Effect of foreign currency translation adjustment	—			—			—			—			(5.7		)	—			(5.7		)
Less cash attributable to discontinued operations	—			—			—			—			13.4			—			13.4
Net (decrease) increase in cash and cash equivalents	—			(1,200.7		)	3.6			(82.9		)	478.3			—			(801.7		)
Cash and cash equivalents at beginning of year	—			2,346.6			—			126.9			319.6			—			2,793.1
Cash and cash equivalents at end of year	$	—		$	1,145.9		$	3.6		$	44.0		$	797.9		$	—		$	1,991.4

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.			Guarantors			Non- Guarantors			Eliminations		Consolidated
For the year ended December 31, 2012
Net cash flows provided by (used in) operating activities	$	(147.3	)	$	655.1		$	3,355.4		$	916.7		$	1.7		$	—	$	4,781.6
Cash flows from investing activities:
Purchases of property and equipment	—			(70.0		)	—			(85.9		)	(4.3		)	—		(160.2		)
Proceeds from the sale of business	—			31.5			30.0			—			—			—		61.5
Acquisitions, net of cash acquired	(10,283.6		)	—			—			—			(42.4		)	—		(10,326.0		)
Other	—			(5.0		)	—			—			1.0			—		(4.0		)
Net cash (used in) provided by investing activities—continuing operations	(10,283.6		)	(43.5		)	30.0			(85.9		)	(45.7		)	—		(10,428.7		)
Acquisitions, cash acquired— discontinued operations	—			—			—			—			42.4			—		42.4
Net cash used in investing activities— discontinued operations	—			—			—			(3.8		)	(1.6		)	—		(5.4		)
Net cash (used in) provided by investing activities	(10,283.6		)	(43.5		)	30.0			(89.7		)	(4.9		)	—		(10,391.7		)
Cash flows from financing activities:
Repayment of long-term debt	(1,368.4		)	(1,000.1		)	(1,500.0		)	—			—			—		(3,868.5		)
Net proceeds from employee stock plans	295.2			—			30.8			—			—			—		326.0
Excess tax benefit relating to employee stock-based compensation	—			37.2			8.1			—			—			—		45.3
Distributions paid to non-controlling interest	—			—			—			—			(8.1		)	—		(8.1		)
Proceeds from long-term debt, net of discounts	7,458.9			—			—			—			—			—		7,458.9
Repayment of revolving credit line, net	—			—			(1,000.0		)	—			—			—		(1,000.0		)
Proceeds from accounts receivable financing facility	—			—			—			—			600.0			—		600.0
Repayment of accounts receivable financing facility	—			—			—			—			(600.0		)	—		(600.0		)
Deferred financing fees	(52.4		)	(50.8		)	—			—			—			—		(103.2		)
Net intercompany transactions	4,097.6			(2,773.5		)	(924.3		)	(705.5		)	305.7			—		—
Net cash provided by (used in) financing activities—continuing operations	10,430.9			(3,787.2		)	(3,385.4		)	(705.5		)	297.6			—		2,850.4
Net cash used in financing activities— discontinued operations	—			—			—			—			(26.8		)	—		(26.8		)
Net cash provided by (used in) financing activities	10,430.9			(3,787.2		)	(3,385.4		)	(705.5		)	270.8			—		2,823.6
Effect of foreign currency translation adjustment	—			—			—			—			2.0			—		2.0
Less cash attributable to discontinued operations	—			—			—			—			(42.5		)	—		(42.5		)
Net (decrease) increase in cash and cash equivalents	—			(3,175.6		)	—			121.5			227.1			—		(2,827.0		)
Cash and cash equivalents at beginning of year	—			5,522.2			—			5.4			92.5			—		5,620.1
Cash and cash equivalents at end of year	$	—		$	2,346.6		$	—		$	126.9		$	319.6		$	—	$	2,793.1

Condensed Consolidating Statement of Cash Flows
(in millions)	Express Scripts Holding Company			Express Scripts, Inc.			Medco Health Solutions, Inc.		Guarantors			Non- Guarantors			Eliminations		Consolidated
For the year ended December 31, 2011
Net cash flows provided by (used in) operating activities	$	(14.1	)	$	1,426.4		$	—	$	753.1		$	27.7		$	—	$	2,193.1
Cash flows from investing activities:
Purchases of property and equipment	—			(124.9		)	—		(13.4		)	(6.1		)	—		(144.4		)
Other	—			(1.0		)	—		1.3			20.2			—		20.5
Net cash (used in) provided by investing activities	—			(125.9		)	—		(12.1		)	14.1			—		(123.9		)
Cash flows from financing activities:
Treasury stock acquired	—			(2,515.7		)	—		—			—			—		(2,515.7		)
Repayment of long-term debt	—			(0.1		)	—		—			—			—		(0.1		)
Net proceeds from employee stock plans	—			32.2			—		—			—			—		32.2
Excess tax benefit relating to employee stock-based compensation	—			28.3			—		—			—			—		28.3
Distributions paid to non-controlling interest	—			—			—		—			(1.1		)	—		(1.1		)
Proceeds from long-term debt, net of discounts	4,086.3			1,494.0			—		—			—			—		5,580.3
Deferred financing fees	(29.2		)	(62.4		)	—		—			—			—		(91.6		)
Other	—			(2.9		)	—		—			—			—		(2.9		)
Net intercompany transactions	(4,043.0		)	4,791.6			—		(744.6		)	(4.0		)	—		—
Net cash provided by (used in) financing activities	14.1			3,765.0			—		(744.6		)	(5.1		)	—		3,029.4
Effect of foreign currency translation adjustment	—			—			—		—			(2.2		)	—		(2.2		)
Net increase (decrease) in cash and cash equivalents	—			5,065.5			—		(3.6		)	34.5			—		5,096.4
Cash and cash equivalents at beginning of year	—			456.7			—		9.0			58.0			—		523.7
Cash and cash equivalents at end of year	$	—		$	5,522.2		$	—	$	5.4		$	92.5		$	—	$	5,620.1

XML

Commitments and contingencies

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

12. Commitments and contingencies

Lease agreements. We have entered into noncancellable agreements to lease certain offices, distribution facilities and operating equipment with remaining terms from one to ten years. The majority of our lease agreements include renewal options which would extend the agreements from one to five years. Rental expense under the office and distribution facilities leases, excluding our discontinued operations (see Note 4 - Dispositions), in 2013, 2012 and 2011 was $83.8 million, $103.6 million and $30.2 million, respectively. The future minimum lease payments, including interest, due under noncancellable leases, excluding the facilities of the discontinued operations of our held for sale entities of our European operations, are shown below (in millions):

Year Ended December 31,	Minimum Operating Lease Payments		Minimum Capital Lease Payments
2014	$	85.0	$	14.4
2015	61.1		14.4
2016	53.5		14.4
2017	42.6		0.2
2018	38.4		—
Thereafter	85.5		—
Total	$	366.1	$	43.4

In November 2012, we entered into a four-year capital lease for equipment to be used in our Fair Lawn, New Jersey facility effective January 1, 2013. The lease terminates in December 2016 and contains an option for the Company to purchase the equipment for one dollar at that time. As of December 31, 2013, the capitalized lease obligation was $42.0 million.

Purchase commitments. As of December 31, 2013, we have certain required future purchase commitments for materials, supplies, services and fixed assets related to the normal course of business. We do not expect potential payments under these provisions to materially affect results of operations or financial condition based upon reasonably likely outcomes derived by reference to historical experience and current business plans. These future purchase commitments (in millions), excluding the facilities of the discontinued operations of our held for sale entities of our European operations, are summarized below:

Year Ended December 31,	Future Purchase Commitments
2014	$	425.3
2015	102.8
2016	57.3
2017	25.3
2018	—
Thereafter	—
Total	$	610.7

Other contingencies. For the year ended December 31, 2013, approximately 47.0% of our pharmaceutical purchases were through one wholesaler. We believe other alternative sources are readily available. Except for customer concentration described in Note 13 - Segment information below, we believe no other concentration risks exist at December 31, 2013.

In the ordinary course of business there have arisen various legal proceedings, investigations, government inquiries or claims now pending against us or our subsidiaries, including, but not limited to, those relating to regulatory, commercial, employment, employee benefits and securities matters. In accordance with applicable accounting guidance, we record accruals for certain of our outstanding legal proceedings, investigations or claims when we believe it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. We evaluate, on a quarterly basis, developments in legal proceedings, investigations or claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. We disclose the amount of the accrual if the consolidated financial statements would be otherwise misleading, which was not the case for the years ended December 31, 2013, 2012 and 2011.

We record self-insurance accruals based upon estimates of the aggregate liability of claim costs in excess of our insurance coverage. Accruals are estimated using certain actuarial assumptions followed in the insurance industry and our historical experience (see Note 1 - Summary of significant accounting policies, “Self-insurance accruals”). The majority of these claims are legal claims and our liability estimate is primarily related to the cost to defend these claims. We do not accrue for settlements, judgments, monetary fines or penalties until such amounts are probable and estimable. Under authoritative guidance, if the range of possible loss is broad, the liability accrual is based on the low end of the range.

When a loss contingency is not believed to be both probable and estimable, we do not establish an accrued liability. However, if the loss (or an additional loss in excess of the accrual) is believed to be at least a reasonable possibility and material, then we disclose an estimate of the possible loss or range of loss, if such estimate can be made, or disclose that an estimate cannot be made.

The assessments of whether a loss is probable or a reasonable possibility, and whether the loss or a range of loss is estimable, often involve a series of complex judgments about future events. We are often unable to estimate a range of reasonably possible loss, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel or unsettled legal theories or a large number of parties. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss, fine, penalty or business impact, if any. Accordingly, for many proceedings, we are currently unable to estimate the loss or a range of possible loss. For a limited number of proceedings, we may be able to reasonably estimate the possible range of loss in excess of any accruals. However, we believe that such matters, individually and in the aggregate, when finally resolved, are not reasonably likely to have a material adverse effect on our cash flow or financial condition. We also believe that any amount that could be reasonably estimated in excess of accruals, if any, for such proceedings is not material. However, an adverse resolution of one or more of such matters could have a material adverse effect on our results of operations in a particular quarter or fiscal year.

While we believe our services and business practices are in compliance with applicable laws, rules and regulations in all material respects, we cannot predict the outcome of these claims at this time. An unfavorable outcome in one or more of these matters could result in the imposition of judgments, monetary fines or penalties, or injunctive or administrative remedies. We can give no assurance that such judgments, fines and remedies, and future costs associated with any such matters would not have a material adverse effect on our financial condition, our consolidated results of operations or our consolidated cash flows.

We previously disclosed an accrual of $30.0 million related to a client contractual dispute. The accrual was reflected as an offset to revenue in the consolidated statement of operations for the year ended December 31, 2011. In 2012, this dispute was resolved and the impact of the resolution was not material.

XML

Quarterly financial data - Components of Quarterly Financial Data (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Quarterly Financial Data [Abstract]
Total revenues	$ 25,781.4	[1],[2]	$ 25,915.6	[1],[2]	$ 26,381.9	[1],[2]	$ 26,019.9	[1],[2]	$ 27,365.1	[1],[2]	$ 26,761.6	[1],[2]	$ 27,455.0	[1],[2],[3]	$ 12,132.6	[1],[2],[3]	$ 104,098.8	[4]	$ 93,714.3	[4]	$ 46,128.3	[4]
Cost of revenues	23,720.4	[1],[2]	23,921.4	[1],[2]	24,266.8	[1],[2]	24,057.8	[1],[2]	25,067.4	[1],[2]	24,658.7	[1],[2]	25,375.7	[1],[2],[3]	11,300.6	[1],[2],[3]	95,966.4	[4]	86,402.4	[4]	42,918.4	[4]
Gross profit	2,061.0	[2]	1,994.2	[2]	2,115.1	[2]	1,962.1	[2]	2,297.7	[2]	2,102.9	[2]	2,079.3	[2],[3]	832.0	[2],[3]	8,132.4		7,311.9		3,209.9
Selling, general and administrative	1,232.2	[2]	1,118.7	[2]	1,110.8	[2]	1,119.0	[2]	1,390.8	[2]	1,282.2	[2]	1,579.9	[2],[3]	265.1	[2],[3]	4,580.7		4,518.0		895.5
Operating income	828.8	[2]	875.5	[2]	1,004.3	[2]	843.1	[2]	906.9	[2]	820.7	[2]	499.4	[2],[3]	566.9	[2],[3]	3,551.7		2,793.9		2,314.4
Net income from continuing operations	518.3	[2]	453.6	[2]	574.4	[2]	380.0	[2]	524.1	[2]	415.9	[2]	152.2	[2],[3]	270.2	[2],[3]	1,926.3		1,362.4		1,278.5
Net loss from discontinued operations, net of tax	(12.3)	[2]	(15.5)	[2]	(23.9)	[2]	(1.9)	[2]	(13.1)	[2]	(20.0)	[2]	0.8	[2],[3]	0	[2],[3]	(53.6)		(32.3)		0
Net income	506.0	[2]	438.1	[2]	550.5	[2]	378.1	[2]	511.0	[2]	395.9	[2]	153.0	[2],[3]	270.2	[2],[3]	1,872.7		1,330.1		1,278.5
Less: Net income attributable to non-controlling interest	4.1	[2]	11.4	[2]	7.5	[2]	5.1	[2]	6.9	[2]	4.5	[2]	3.4	[2],[3]	2.4	[2],[3]	28.1		17.2		2.7
Net income attributable to Express Scripts	501.9	[2]	426.7	[2]	543.0	[2]	373.0	[2]	504.1	[2]	391.4	[2]	149.6	[2],[3]	267.8	[2],[3]	1,844.6		1,312.9		1,275.8
Basic earnings (loss) per share
Continuing operations attributable to Express Scripts (usd per share)	$ 0.65	[2]	$ 0.55	[2]	$ 0.70	[2]	$ 0.46	[2]	$ 0.63	[2]	$ 0.51	[2]	$ 0.18	[2],[3]	$ 0.55	[2],[3]	$ 2.35		$ 1.84		$ 2.55
Discontinued operations attributable to Express Scripts (usd per share)	$ (0.02)	[2]	$ (0.02)	[2]	$ (0.03)	[2]	$ 0.00	[2]	$ (0.02)	[2]	$ (0.02)	[2]	$ 0.00	[2],[3]	$ 0.00	[2],[3]	$ (0.07)		$ (0.04)		$ 0.00
Net earnings attributable to Express Scripts (usd per share)	$ 0.63	[2]	$ 0.53	[2]	$ 0.67	[2]	$ 0.46	[2]	$ 0.62	[2]	$ 0.48	[2]	$ 0.19	[2],[3]	$ 0.55	[2],[3]	$ 2.28		$ 1.80		$ 2.55
Diluted earnings (loss) per share attributable to Express Scripts
Continuing operations attributable to Express Scripts (usd per share)	$ 0.64	[2]	$ 0.54	[2]	$ 0.68	[2]	$ 0.45	[2]	$ 0.62	[2]	$ 0.50	[2]	$ 0.18	[2],[3]	$ 0.55	[2],[3]	$ 2.31		$ 1.80		$ 2.53
Discontinued operations attributable to Express Scripts (usd per share)	$ (0.02)	[2]	$ (0.02)	[2]	$ (0.03)	[2]	$ 0.00	[2]	$ (0.02)	[2]	$ (0.02)	[2]	$ 0.00	[2],[3]	$ 0.00	[2],[3]	$ (0.07)		$ (0.04)		$ 0.00
Net earnings attributable to Express Scripts (usd per share)	$ 0.63	[2]	$ 0.52	[2]	$ 0.66	[2]	$ 0.45	[2]	$ 0.61	[2]	$ 0.47	[2]	$ 0.18	[2],[3]	$ 0.55	[2],[3]	$ 2.25		$ 1.76		$ 2.53
Amounts attributable to Express Scripts shareholders:
Income from continuing operations, net of tax	514.2	[2]	442.2	[2]	566.9	[2]	374.9	[2]	517.2	[2]	411.4	[2]	148.8	[2],[3]	267.8	[2],[3]	1,898.2		1,345.2		1,275.8
Net loss from discontinued operations, net of tax	(12.3)	[2]	(15.5)	[2]	(23.9)	[2]	(1.9)	[2]	(13.1)	[2]	(20.0)	[2]	0.8	[2],[3]	0	[2],[3]	(53.6)		(32.3)		0
Net income attributable to Express Scripts	$ 501.9	[2]	$ 426.7	[2]	$ 543.0	[2]	$ 373.0	[2]	$ 504.1	[2]	$ 391.4	[2]	$ 149.6	[2],[3]	$ 267.8	[2],[3]	$ 1,844.6		$ 1,312.9		$ 1,275.8

[1] Includes retail pharmacy co-payments of $3,674.4 and $1,496.6 for the three months ended March 31, 2013 and 2012, respectively, $3,204.3 and $3,519.1 for the three months ended June 30, 2013 and 2012, respectively, $2,966.5 and $3,348.9 for the three months ended September 30, 2013 and 2012, respectively, and $2,775.1 and $3,304.0 for the three months ended December 31, 2013 and 2012, respectively.

[2] Adjusted to reflect the results of our acute infusion therapies line of business as discontinued.

[3] Includes the April 2, 2012 acquisition of Medco.

[4] Includes retail pharmacy co-payments of $12,620.3, $11,668.6 and $5,786.6 for the years ended December 31, 2013, 2012 and 2011, respectively.