CNC US Equity☆

cnc-20231231

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)

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

For the fiscal year ended December 31, 2023

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: 001-31826

Centene Corporation

(Exact name of registrant as specified in its charter)

7700 Forsyth Boulevard

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: (314) 725-4477

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

Title of Each Class Trading Symbol(s) Name of Each Exchange on Which Registered

Common Stock, $0.001 Par Value CNC New York Stock Exchange

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

None

(Title of Class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes☒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☒

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☒No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files). Yes☒No ☐

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

Large accelerated filer ☒ Accelerated filer ☐

Non-accelerated filer ☐ Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statement of the registrant included in the filing reflect the correction of an error to the previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b) ☐

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

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant, based upon the last reported sale price of the common stock on the New York Stock Exchange on June 30, 2023, was $36.8 billion.

As of February 16, 2024, the registrant had 534,863 thousand shares of common stock issued and outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Proxy Statement for the registrant's 2024 annual meeting of stockholders are incorporated by reference in Part III, Items 10, 11, 12, 13 and 14.

CENTENE CORPORATION

ANNUAL REPORT ON FORM 10-K

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PAGE

Part I

Item 1. Business 1

Item 1A. Risk Factors 18

Item 1B. Unresolved Staff Comments 36

Item 1C. Cybersecurity 36

Item 2. Properties 38

Item 3. Legal Proceedings 38

Item 4. Mine Safety Disclosures 38

Part II

Item 6. Reserved 41

Item 7A. Quantitative and Qualitative Disclosures About Market Risk 63

Item 8. Financial Statements and Supplementary Data 64

Item 9A. Controls and Procedures 109

Item 9B. Other Information 111

Part III

Item 10. Directors, Executive Officers and Corporate Governance 112

Item 11. Executive Compensation 112

Item 14. Principal Accountant Fees and Services 112

Part IV

Item 15. Exhibits and Financial Statement Schedules 113

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CAUTIONARY STATEMENT ON FORWARD-LOOKING STATEMENTS

All statements, other than statements of current or historical fact, contained in this filing are forward-looking statements. Without limiting the foregoing, forward-looking statements often use words such as "believe," "anticipate," "plan," "expect," "estimate," "intend," "seek," "target," "goal," "may," "will," "would," "could," "should," "can," "continue" and other similar words or expressions (and the negative thereof). Centene Corporation and its subsidiaries (Centene, the Company, our or we) intends such forward-looking statements to be covered by the safe-harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, and we are including this statement for purposes of complying with these safe-harbor provisions. In particular, these statements include, without limitation, statements about our future operating or financial performance, market opportunity, competition, expected activities in connection with completed and future acquisitions and dispositions, our investments and the adequacy of our available cash resources. These statements may be found in the various sections of this filing, such as Part I, Item 1. "Business," Part I, Item 1A "Risk Factors," Part I, Item 3. "Legal Proceedings," and Part II, Item 7. "Management's Discussion and Analysis of Financial Condition and Results of Operations."

These forward-looking statements reflect our current views with respect to future events and are based on numerous assumptions and assessments made by us in light of our experience and perception of historical trends, current conditions, business strategies, operating environments, future developments and other factors we believe appropriate. By their nature, forward-looking statements involve known and unknown risks and uncertainties and are subject to change because they relate to events and depend on circumstances that will occur in the future, including economic, regulatory, competitive and other factors that may cause our or our industry's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance, or achievements expressed or implied by these forward-looking statements. These statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions.

All forward-looking statements included in this filing are based on information available to us on the date of this filing. Except as may be otherwise required by law, we undertake no obligation to update or revise the forward-looking statements included in this filing, whether as a result of new information, future events, or otherwise, after the date of this filing. You should not place undue reliance on any forward-looking statements, as actual results may differ materially from projections, estimates, or other forward-looking statements due to a variety of important factors, variables and events including, but not limited to:

•our ability to design and price products that are competitive and/or actuarially sound including but not limited to any impacts resulting from Medicaid redeterminations;

•our ability to maintain or achieve improvement in the Centers for Medicare and Medicaid Services (CMS) Star ratings and maintain or achieve improvement in other quality scores in each case that can impact revenue and future growth;

•our ability to accurately predict and effectively manage health benefits and other operating expenses and reserves, including fluctuations in medical utilization rates;

•competition, including for providers, broker distribution networks, contract reprocurements and organic growth;

•our ability to adequately anticipate demand and provide for operational resources to maintain service level requirements;

•our ability to manage our information systems effectively;

•disruption, unexpected costs, or similar risks from business transactions, including acquisitions, divestitures, and changes in our relationships with third parties;

•impairments to real estate, investments, goodwill, and intangible assets;

•changes in senior management, loss of one or more key personnel or an inability to attract, hire, integrate and retain skilled personnel;

•membership and revenue declines or unexpected trends;

•rate cuts or other payment reductions or delays by governmental payors and other risks and uncertainties affecting our government businesses;

•changes in healthcare practices, new technologies, and advances in medicine;

•increased healthcare costs;

•inflation and interest rates;

•the effect of social, economic, and political conditions and geopolitical events, including as a result of changes in U.S. presidential administrations or Congress;

•changes in market conditions;

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•changes in federal or state laws or regulations, including changes with respect to income tax reform or government healthcare programs as well as changes with respect to the Patient Protection and Affordable Care Act and the Health Care and Education Affordability Reconciliation Act (collectively referred to as the ACA) and any regulations enacted thereunder;

•uncertainty concerning government shutdowns, debt ceilings or funding;

•tax matters;

•disasters, climate-related incidents, acts of war or aggression or major epidemics;

•changes in expected contract start dates;

•changes in provider, broker, vendor, state, federal, foreign, and other contracts and delays in the timing of regulatory approval of contracts, including due to protests;

•the expiration, suspension, or termination of our contracts with federal or state governments (including, but not limited to, Medicaid, Medicare or other customers);

•the difficulty of predicting the timing or outcome of legal or regulatory audits, investigations, proceedings or matters, including, but not limited to, our ability to resolve claims and/or allegations made by states with regard to past practices, including at Centene Pharmacy Services (formerly Envolve Pharmacy Solutions, Inc. (Envolve)), as our pharmacy benefits manager (PBM) subsidiary, within the reserve estimate we previously reported and on other acceptable terms, or at all, or whether additional claims, reviews or investigations will be brought by states, the federal government or shareholder litigants, or government investigations;

•challenges to our contract awards;

•cyber-attacks or other data security incidents;

•the exertion of management's time and our resources, and other expenses incurred and business changes required in connection with complying with the terms of our contracts and the undertakings in connection with any regulatory, governmental, or third party consents or approvals for acquisitions or dispositions;

•any changes in expected closing dates, estimated purchase price, or accretion for acquisitions or dispositions;

•losses in our investment portfolio;

•restrictions and limitations in connection with our indebtedness;

•a downgrade of our corporate family rating, issuer rating or credit rating of our indebtedness; and

•the availability of debt and equity financing on terms that are favorable to us.

This list of important factors is not intended to be exhaustive. We discuss certain of these matters more fully, as well as certain other factors that may affect our business operations, financial condition, and results of operations, in our filings with the Securities and Exchange Commission (SEC), including our quarterly reports on Form 10-Q and current reports on Form 8-K. Due to these important factors and risks, we cannot give assurances with respect to our future performance, including without limitation our ability to maintain adequate premium levels or our ability to control our future medical and selling, general and administrative costs.

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SUMMARY OF RISK FACTORS

Our business is subject to numerous risks and uncertainties that you should be aware of in evaluating our business, including risks that may prevent us from achieving our business objectives or may adversely affect our business, financial condition, results of operations, cash flows and prospects.These risks include, but are not limited to, the following, all of which are more fully described in Part 1, Item 1A "Risk Factors". This summary should be read in conjunction with the Risk Factors section and should not be relied upon as an exhaustive summary of the material risks facing our business.

•Failure to accurately estimate and price our medical expenses or effectively manage our medical costs or related administrative costs could have a material adverse effect on our business;

•Our Medicare programs are subject to a variety of unique risks that could adversely impact our financial results;

•Risk-adjustment payment systems make our revenue and results of operations more difficult to estimate and could result in retroactive adjustments that have a material adverse effect on our business;

•Any failure to adequately price or anticipate demand for products offered, anticipate changes to the competitive landscape or any reduction in products offered for Medicare Advantage and in the Health Insurance Marketplace may have a material adverse effect on our business;

•If we are not successful in procuring new government contracts or renewing existing government contracts, or if we receive an adverse finding or review resulting from an audit or investigation, our business may be adversely affected;

•We derive a portion of our cash flow and gross margin from our prescription drug plan (PDP) operations, for which we submit annual bids for participation. The results of our bids could have a material adverse effect on our business;

•Our encounter data may be inaccurate or incomplete, which could have a material adverse effect on our business and ability to bid for, and continue to participate in, certain programs;

•Increases in our pharmaceutical costs could have a material adverse effect on the level of our medical costs and our results of operations;

•Ineffectiveness of state-operated systems and subcontractors could adversely affect our business;

•If state regulators do not approve payments of dividends and distributions by our subsidiaries to us, we may not have sufficient funds to implement our business strategy;

•We derive a significant portion of our premium revenues from operations in a number of states, and our business could be materially adversely affected by a decrease in premium revenues or profitability in any one of those states;

•Competition may limit our ability to increase penetration of the markets that we serve;

•We operate in a highly competitive, dynamic and rapidly evolving industry and our failure to adapt could negatively impact our business;

•If our vendors fail to meet their contractual obligations to us or fail to comply with applicable laws or regulations, our results of operations may be adversely affected and we may be exposed to brand and reputational harm, litigation and/or regulatory action;

•If we are unable to maintain relationships with our provider networks, our profitability may be materially adversely affected;

•If we or our third-party vendors are unable to integrate and manage information systems and networks effectively, our operations could be disrupted;

•A failure in or breach of our operational or security systems, networks or infrastructure, or those of third parties with which we do business, including as a result of cyber-attacks and other data security incidents, could have a material adverse effect on our business;

•We may be unable to attract, retain or effectively manage the succession of key personnel;

•An impairment charge with respect to our recorded goodwill, intangible assets and real estate portfolio could have a material impact on our results of operations and shareholders' equity;

•Reductions in funding, changes to eligibility requirements for government-sponsored healthcare programs in which we participate, and any inability on our part to effectively adapt to changes to these programs could have a material adverse effect on our business;

•Significant changes or judicial challenges to the ACA could materially and adversely affect our business;

•Our business activities are highly regulated and new laws or regulations or changes in existing laws or regulations or their enforcement or application could force us to change how we operate and could harm our reputation and business;

•Our pharmacy services face regulatory and other competitive risks and uncertainties which could materially and adversely affect our business;

•We have been and may from time to time become involved in costly and time-consuming litigation and other regulatory proceedings, which require significant attention from our management and could adversely affect our business;

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•If we fail to comply with applicable data privacy and security laws, regulations, rules, standards and contractual obligations, including with respect to third-party service providers that utilize sensitive personal information on our behalf, our business could be materially and adversely affected;

•If we fail to comply with the extensive federal and state fraud, waste and abuse laws, our business could be materially and adversely affected;

•We might be adversely impacted by tax legislation or challenges to our tax positions;

•Our investment portfolio may suffer losses which could materially and adversely affect our results of operations or liquidity;

•Adverse credit market conditions may have a material adverse effect on our liquidity or our ability to obtain credit on acceptable terms;

•We have substantial indebtedness outstanding and may incur additional indebtedness in the future. Such indebtedness could reduce our agility and may adversely affect our financial condition;

•Previous or future acquisitions may not perform as expected and we may not realize the financial results expected from acquisitions or divestitures, which may cause the market price of our common stock to decline;

•We may be unable to successfully integrate our existing business with acquired businesses and realize the anticipated benefits of such acquisitions; and

•Our business and results of operations may be materially adversely affected if we fail to manage and complete divestitures.

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Non-GAAP Financial Presentation

The Company is providing certain non-GAAP financial measures in this report as the Company believes that these figures are helpful in allowing investors to more accurately assess the ongoing nature of the Company's operations and measure the Company's performance more consistently across periods. The Company uses the presented non-GAAP financial measures internally in evaluating the Company's performance and for planning purposes, by allowing management to focus on period-to-period changes in the Company's core business operations, and in determining employee incentive compensation. Therefore, the Company believes that this information is meaningful in addition to the information contained in the GAAP presentation of financial information. The Company strongly encourages investors to review its consolidated financial statements and publicly filed reports in their entirety and cautions investors that the non-GAAP financial measures used by the Company may differ from similar measures used by other companies, even when similar terms are used to identify such measures. The presentation of non-GAAP financial measures is not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with GAAP.

Specifically, the Company believes the presentation of non-GAAP financial measures that excludes amortization of acquired intangible assets, acquisition and divestiture related expenses, as well as other items, allows investors to develop a more meaningful understanding of the Company's core performance over time.

The tables below provide reconciliations of non-GAAP items ($ in millions, except per share data):

Year Ended December 31,

GAAP net earnings attributable to Centene $ 2,702 $ 1,202 $ 1,347

Amortization of acquired intangible assets 718 817 770

Acquisition and divestiture related expenses 70 213 185

Income tax effects of adjustments (2) (308) (410) (537)

Amortization of acquired intangible assets 1.32 1.40 1.31

Acquisition and divestiture related expenses 0.13 0.36 0.31

Income tax effects of adjustments (2) (0.57) (0.70) (0.91)

(1) Other adjustments include the following pre-tax items:

2023:

(a) Circle Health Group (Circle Health) impairment of $292 million, or $0.53 per share ($0.47 after-tax), Operose Health Group (Operose Health) impairment of $140 million, or $0.26 per share ($0.24 after-tax), real estate impairments of $105 million, or $0.19 per share ($0.16 after-tax), gain on the sale of Apixio of $93 million, or $0.17 per share ($0.12 after-tax), severance costs due to a restructuring of $79 million, or $0.15 per share ($0.11 after-tax), gain on the sale of Magellan Specialty Health of $79 million, or $0.14 per share ($0.11 after-tax), a reduction to the previously reported gain on the sale of Magellan Rx of $22 million, or $0.04 per share ($0.02 after-tax), gain on the previously reported divestiture of Centurion of $15 million, or $0.03 per share ($0.02 after-tax) and an additional loss on the divestiture of our Spanish and Central European businesses of $13 million, or $0.02 per share ($0.01 after-tax).

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2022:

(b) real estate impairments of $1,642 million, or $2.82 per share ($2.08 after-tax), PANTHERx Rare (PANTHERx) divestiture gain of $490 million, or $0.84 per share ($0.65 after-tax), impairments of assets associated with the divestitures of our Spanish and Central European, Centurion and HealthSmart businesses of $458 million, or $0.78 per share ($0.60 after-tax), Magellan Rx divestiture gain of $269 million, or $0.46 per share ($0.17 after-tax), Health Net Federal Services asset impairment of $233 million, or $0.40 per share ($0.39 after-tax), gain on debt extinguishment of $27 million, or $0.04 per share ($0.03 after-tax), increase to the previously reported gain on the divestiture of U.S. Medical Management (USMM) due to the finalization of working capital adjustments of $13 million, or $0.02 per share ($0.02 after-tax) and costs related to the PBM legal settlement of $6 million, or $0.01 per share ($0.00 after-tax).

2021:

(c) PBM legal settlement expense of $1,264 million, or $2.14 per share ($1.76 after-tax), gain related to the acquisition of the remaining 60% interest of Circle Health of $309 million, or $0.52 per share ($0.52 after-tax), impairment of our equity method investment in RxAdvance of $229 million, or $0.39 per share ($0.32 after-tax), gain related to the divestiture of USMM of $150 million, or $0.25 per share ($0.23 after-tax), debt extinguishment costs of $125 million, or $0.21 per share ($0.16 after-tax), reduction to the previously reported gain on divestiture of certain products of our Illinois health plan of $62 million, or $0.10 per share ($0.08 after-tax) and severance costs due to a restructuring of $54 million, or $0.09 per share ($0.06 after-tax).

(2) The income tax effects of adjustments are based on the effective income tax rates applicable to each adjustment. In addition, the year ended December 31, 2023, includes a one-time income tax benefit of $69 million, or $0.13 per share, resulting from the distribution of long-term stock awards to the estate of the Company's former CEO and tax expense of $3 million, or $0.01 per share, related to tax adjustments on previously reported divestitures. The year ended December 31, 2022, includes tax expense of $107 million, or $0.18 per share, related to the Magellan Specialty Health divestiture and a $15 million, or $0.03 per share, tax benefit related to the RxAdvance impairment.

Year Ended December 31,

GAAP selling, general and administrative expenses $ 12,563 $ 11,589 $ 9,601

Less:

Acquisition and divestiture related expenses 69 202 157

Restructuring costs 79 — 54

Costs related to the PBM legal settlement — 6 14

Real estate optimization 8 15 —

Adjusted selling, general and administrative expenses $ 12,407 $ 11,366 $ 9,376

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PART I

Item 1. Business

OVERVIEW

Our mission is to transform the health of the communities we serve, one person at a time. Centene is a leading provider of government-sponsored healthcare. We provide access to quality healthcare for nearly 1 in 15 individuals nationwide through government-sponsored programs, including Medicaid, Medicare and the Health Insurance Marketplace. Our focus is on improving health and health care for low-income, complex populations.

Centene provides access to high-quality healthcare, innovative programs and a wide range of health solutions that help families and individuals get well, stay well and be well. Our uniquely local approach – with local brands and local teams who live in, care about and directly influence the communities they serve – is a key differentiator in our ability to provide access to quality care to our members. Centene treats the whole person, an approach that is delivered locally but backed by the scale of Centene's expertise, data and resources. Through this approach and our commitment to sustainable partnerships, we work with local community organizations to realize our mission of transforming the health of the communities we serve, one person at a time.

We are focused on making strategic decisions and investments to create additional value in the short-term and to seek opportunities that position the organization for long-term strength, profitability, growth and innovation. In addition to creating shareholder value, we are modernizing and improving how we work in order to propel our organization to new levels of success and elevate the member and provider experiences.

During 2023, we operated in four segments: Medicaid, Medicare, Commercial and Other.

•Medicaid - includes the Temporary Assistance for Needy Families (TANF) program; Medicaid Expansion programs; the Aged, Blind or Disabled (ABD) program; the Children's Health Insurance Program (CHIP); Long-Term Services and Supports (LTSS); Foster Care; Medicare-Medicaid Plans (MMP), which cover beneficiaries who are dually eligible for Medicaid and Medicare; and other state-based programs.

•Medicare - includes Medicare Advantage, Medicare Supplement, Dual Eligible Special Needs Plans (D-SNPs) and Medicare Prescription Drug Plans (PDP), also known as Medicare Part D.

•Commercial - includes the Health Insurance Marketplace product along with individual, small group and large group commercial health insurance products.

•Other - includes our pharmacy operations, Envolve Benefit Options' vision and dental services, clinical healthcare, behavioral health, international operations and corporate management companies, among others. Our international businesses, Operose Health Group (Operose Health) and Circle Health Group (Circle Health), were divested in December 2023 and January 2024, respectively.

For the year ended December 31, 2023, our Medicaid, Medicare, Commercial and Other segments accounted for 66%, 14%, 16% and 4%, respectively, of our total external revenues. Our membership totaled 27.5 million as of December 31, 2023. For the year ended December 31, 2023, our total revenues and net earnings attributable to Centene were $154.0 billion and $2.7 billion, respectively, and our total cash flow from operations was $8.1 billion.

Our initial health plan commenced operations in Wisconsin in 1984. We were organized in Wisconsin in 1993 as a holding company for our initial health plan and reincorporated in Delaware in 2001. Our stock is publicly traded on the New York Stock Exchange under the ticker symbol "CNC."

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INDUSTRY AND OPERATIONS

We provide a full spectrum of managed healthcare products and services, primarily through Medicaid, Medicare and commercial products.

Medicaid

Medicaid is the largest publicly funded program in the United States and provides health insurance to low-income families and individuals with disabilities. Medicaid is funded jointly by federal and state governments, with the majority of funding provided by the federal government and administered by the states. Each state establishes its own eligibility standards, benefit packages, payment rates and program administration within federal standards. As a result, there are 56 Medicaid programs - one for each U.S. state, each U.S. territory and the District of Columbia. Eligibility is based on a combination of household income and assets, often determined by an income level relative to the federal poverty level. Many states have selected Medicaid managed care as a means of delivering quality healthcare and controlling costs.

Medicaid helps meet the needs of various populations through the following products and programs:

•The Temporary Assistance for Needy Families (TANF) program covers low-income families with children.

•Medicaid Expansion covers all individuals under age 65 with incomes up to 138% of the federal poverty level, subject to each states' election. The federal government pays 90% of the costs for Medicaid Expansion coverage for these beneficiaries.

•The Aged, Blind or Disabled (ABD) program covers low-income individuals with chronic physical disabilities or behavioral health impairments. ABD beneficiaries represent a growing portion of all Medicaid recipients and typically utilize more services as a result of their more complicated health status.

•The Children's Health Insurance Program (CHIP) helps to expand coverage primarily to children whose families earn too much to qualify for Medicaid, yet not enough to afford private health insurance. Historically, children have represented the largest Medicaid eligible population. Costs are primarily composed of pediatrics and family care, which tend to be more predictable than those associated with other healthcare issues predominantly affecting the adult population.

•Long-Term Services and Supports (LTSS) is a Medicaid product that covers Institutional/Residential Care (Nursing and Intermediate Care Facilities) and Home and Community Based Services (HCBS) for beneficiaries requiring assistance with their activities of daily living. The largest groups receiving LTSS, by spending, are older individuals and individuals with physical disabilities, followed by individuals with intellectual and developmental disabilities, those with serious mental illness and/or serious emotional disturbance and other populations. States are increasingly turning to managed care as a solution to provide coordinated, holistic care to their LTSS beneficiaries.

•The majority of children in foster care qualify for Medicaid. The federal government has enacted legislation establishing requirements for state child welfare agencies related to the health and well-being of children in foster care, including the provision of grants and technical assistance to enable states to meet these needs and make explicit connections with Medicaid. In addition, under the ACA, former foster care children are eligible for Medicaid until the age of 26, provided that they turned 18 while in foster care and were enrolled in Medicaid at that time.

•A portion of Medicaid beneficiaries are dual-eligible, low-income seniors and people with disabilities who are enrolled in both Medicaid and Medicare. According to the CMS, there were approximately 12.4 million dual-eligible enrollees in 2022. These members may receive assistance from Medicaid for benefits, such as nursing home care, HCBS and/or assistance with Medicare premiums and cost-sharing depending on their income level. Dual-eligibles use more services due to their tendency to have more chronic health issues. We serve dual-eligibles primarily through our ABD, LTSS, Medicare-Medicaid Plan (MMP) and Medicare Advantage Dual Eligible Special Needs Plans (D-SNPs) lines of business.

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While Medicaid programs have directed funds to many individuals who cannot afford or otherwise maintain health insurance coverage, they did not initially address the inefficient and costly manner in which the Medicaid population tends to access healthcare. Medicaid recipients in non-managed care programs typically have not sought preventive care or routine treatment for chronic conditions, such as asthma and diabetes. Rather, they have sought healthcare in hospital emergency departments, which is typically more expensive. As a result, many states without managed care programs have found that the costs of providing Medicaid benefits have increased while the medical outcomes for the recipients remained unsatisfactory.

Accordingly, in an effort to improve quality of care and lower costs, the majority of states have mandated that their Medicaid recipients enroll in managed care plans and are considering moving to a mandated managed care approach for additional populations and products. CMS estimates the total Medicaid program will grow from $787 billion in 2022 to $1.2 trillion by 2031. Medicaid spending is estimated to have increased by 4% in 2023 and is projected to increase at an average annual rate of 5% between 2022 and 2031. Based on these trends, we believe a significant market opportunity exists for managed care organizations (MCOs) with operations and programs focused on the distinct socio-economic, cultural and healthcare needs of the uninsured population and the Medicaid populations.

We are the largest Medicaid health insurer in the country, serving more than 14 million Medicaid recipients in 30 states as of December 31, 2023. Our Medicaid contracts with each of the states of New York, Florida and California accounted for approximately 10% or more of our consolidated Medicaid premium revenues individually in the year ended December 31, 2023.

Medicare

Medicare is the federal health insurance program for people ages 65 and over, which was expanded to cover people under 65 with certain disabilities and people with end-stage renal disease requiring dialysis or kidney transplant. Medicare consists of four parts, labeled A through D. Part A provides hospitalization benefits financed largely through Social Security taxes and requires beneficiaries to pay out-of-pocket deductibles and coinsurance. Part B provides benefits for medically necessary services and supplies including outpatient care, physician services and home health care. Parts A and B are referred to as Original Medicare.

As an alternative to Original Medicare, beneficiaries may elect to receive their Medicare benefits through Part C, also known as Medicare Advantage. Under Medicare Advantage, MCOs contract with CMS to provide services directly to Medicare beneficiaries as well as through employer and union groups. MCOs typically receive fixed monthly premium per member from CMS that varies based upon the county in which the member resides, demographic factors of the member such as age, gender and institutionalized status and the health status of the member. Any benefits that are not covered by Medicare may result in an additional monthly premium charged to the enrollee or through portions of payments received from CMS that may be allocated to these benefits, according to CMS regulations and guidance. As our Medicare Advantage members reach their deductibles and out-of-pocket maximums, our medical costs rise, creating seasonality in the business with a higher percentage of earnings in the first half of the year.

The Congressional Budget Office estimates the total Medicare market will grow from $973 billion in 2022 to $2.1 trillion by 2033. Medicare spending is estimated to have increased 8% in fiscal 2023 and is projected to increase at an average annual rate of 7% between 2022 and 2033. Over 40% of Medicare spend in 2023 was in Medicare fee-for-service, representing a notable market opportunity to increase penetration of the Medicare Advantage products.

As of December 31, 2023, we served 1.3 million Medicare Advantage members across 36 states, primarily under the brand name Wellcare, with the highest concentration of lower-income, complex members compared to our competitors. Revenues from CMS are significant to the segment.

Medicare Prescription Drug Plan

Medicare prescription drug coverage, or Medicare Part D, is a voluntary benefit for Medicare beneficiaries. The Medicare Part D prescription drug benefit is supported by risk sharing with the federal government through risk corridors designed to limit the losses and gains of the participating drug plans and by providing reinsurance for catastrophic drug costs. The government subsidy is based on the national weighted average monthly bid for this coverage, adjusted for risk factor payments. Additional subsidies are provided for dually eligible beneficiaries and specified low-income beneficiaries.

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MCOs contract with CMS to serve as plan sponsors offering stand-alone Medicare Part D PDPs to Medicare-eligible beneficiaries. PDPs offer national in-network prescription drug coverage, including a preferred pharmacy network, subject to limitations in certain circumstances. Unless CMS is notified of non-renewal and the non-renewal is effectuated by not filing a bid on the first Monday in June, Medicare Advantage and PDP contracts with CMS are renewed for successive one-year terms each September. Should CMS decide not to renew a contract, CMS must notify MCOs on or before August 1, and the plan would be terminated effective December 31 of that year.

We offer stand-alone PDPs in 50 states and the District of Columbia, serving 4.6 million members as of December 31, 2023.

Commercial

The ACA created the Health Insurance Marketplace, which is a key component of the ACA and provides an opportunity for individuals and families to obtain health insurance. States have the option of operating their own Marketplace or partnering with the federal government. States choosing neither option default to the federally-facilitated Marketplace. Access to the federally-facilitated Marketplace is limited to U.S. citizens and legal immigrants. Insurers are required to offer a minimum level of benefits with coverage that varies based on premiums and out-of-pocket costs.

Premium subsidies are provided to individuals and families without access to other coverage and with incomes above 100% of the federal poverty level to make coverage more affordable. Consumers who qualify for subsidies may choose how much of the tax credit to apply to their premiums each month, up to the maximum amount for which they are eligible. The amount of subsidy an enrollee may receive depends on household income and the cost of the second lowest cost silver plan available to enrollees in their local area. Temporary enhanced subsidies were made available by the American Rescue Plan Act (ARPA), which were further extended through 2025 pursuant to the Inflation Reduction Act.

We are the largest Marketplace carrier, serving 3.9 million members across 28 states as of December 31, 2023, under the brand name Ambetter Health. Revenues from CMS are significant to the segment.

We also offer commercial health insurance products to individuals through large and small employer groups. We offer plans with differing benefit designs and varying levels of co-payments at different premium rates. These plans are offered generally through contracts with participating network physicians, hospitals and other providers. Coverage typically is subject to copays and can be subject to deductibles and coinsurance. As our commercial members reach their deductibles and out-of-pocket maximums, our medical costs rise, creating seasonality in the business with a higher percentage of earnings in the first half of the year.

Other

Our Other segment includes:

•Specialty Pharmacy. AcariaHealth offers comprehensive specialized pharmacy benefit and care management services for complex diseases by enhancing the patient care offering through collaboration with providers and the capture of relevant data to measure patient outcomes.

•Behavioral Health. Magellan Health, Inc. (Magellan) supports innovative ways of accessing better health through technology, while remaining focused on the critical personal relationships that are necessary to achieve a healthy, vibrant life. Magellan's customers include health plans and other MCOs, employers, labor unions, various military and state and federal governmental agencies and third-party administrators.

•Vision and Dental Services. Envolve Benefit Options coordinates benefits beyond traditional medical benefits to offer fully integrated vision and dental health services. Our vision benefit program administers routine and medical surgical eye care benefits through a contracted national network of eye care providers. Through the dental benefit, we are dedicated to improving oral health through a contracted network of dental healthcare providers.

•Clinical Healthcare. Community Medical Group (CMG) provides clinical healthcare, encompassing primary care, access to certain specialty services and a suite of social and other support services. CMG operates in Florida through an at-risk primary care provider model, focusing on clinical and social care for at-risk beneficiaries. Additionally, Denova Collaborative Health provides outpatient primary care and behavioral healthcare services.

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•Federal Services. Health Net Federal Services has a Managed Support Contract in the West Region for the Department of Defense (DoD) TRICARE program. We provide administrative services to Military Health System eligible beneficiaries, which includes eligible active duty service members and their families, retired service members and their families, survivors of retired service members and qualified former spouses. Our current contract for health care delivery services concludes at the end of 2024.

•Corporate Management Company. Each of our health plans contracts with our wholly-owned corporate management company to provide certain functions required to manage the health plan including, but not limited to, salaries and wages for personnel, rent, utilities, population health management, provider contracting, compliance, member services, claims processing, information technology, cash management, finance and accounting and other services.

•International Operations. Circle Health is one of the U.K.'s largest independent hospital operators. Operose Health represents one of the largest provider networks in the U.K. and delivers medical and community-based services in the primary care sector of the National Health Service, which is the publicly funded, national healthcare system for England.Our international businesses, Operose Health and Circle Health, were divested in December 2023 and January 2024, respectively.

OUR COMPETITIVE STRENGTHS

Our approach is based on the following key competitive strengths:

•Power of Incumbency. Centene was founded as a Medicaid company and our business is built on Medicaid as the foundation, anchored around long-lasting, trusted relationships. The years we have spent forging new paths, developing innovative solutions and addressing the evolving needs of our members has earned Centene an important seat at the table and a powerful voice to shape the conversation at the state and federal level. We've deliberately increased our market density by expanding our reach to products beyond Medicaid and as a result, we are the largest Medicaid health insurer and Marketplace carrier in the country.

•Local Where It Matters. Our local approach to delivering healthcare enables us to meet members and providers in the communities where they are to facilitate member access to high-quality, culturally sensitive healthcare services. Our programs and services are tailored to the unique individuals we serve and include a broad range of initiatives to address social drivers of health such as food insecurity, housing instability, unemployment and access to transportation, which contribute to health disparities among underserved communities. With local leadership owning all three lines of business, we're able to translate local best practices from our Medicaid business into product development, distribution, network and pricing decisions we make for our Marketplace and Medicare businesses. We know what our customers will value because we live and work alongside them every day.

•Partnerships. Centene's partnership mindset allows us to design solutions for our members that integrate the most relevant, most local and most innovative capabilities in an agile and capital-efficient way. Partnership has become both strategy and a discipline: finding, measuring and maintaining the best partners over time. Instead of owning providers, we are identifying the best providers for our members, investing in data and engagement models that will support them in delivering health outcomes. For example, we are steadily increasing the number of our members in value-based arrangements in all three lines of business, which lead to a better experience for our providers and higher quality care for our members.

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Benefits to Customers

We feel that our ability to establish and maintain a leadership position in the markets we serve results primarily from our demonstrated success in providing quality care while reducing and managing costs, and from our specialized programs with state governments.

The following are among the benefits we provide to our government partners, providers and members:

•Accurate and timely claims payments. We are committed to ensuring that our information systems and claims payment systems meet or exceed state requirements. We continuously improve our claims processing strategies, expertise, configuration and tools to achieve operational excellence, including timely payments to our providers.

•Care management for complex populations. Through our experience with Medicaid populations and long-time presence in states with experience in long-term care for children and adolescents in the foster care system, we have developed care management, service coordination and crisis prevention/response programs that improve healthcare outcomes through decreasing preventable emergency department utilization and improving access to primary care and behavioral health intervention. This experience has led to sole source foster care contracts in Florida, Illinois, Missouri, Oklahoma, Texas and Washington.

•Commitment to quality and improved health outcomes. We demonstrate this through obtaining health plan accreditations, such as National Committee for Quality Assurance (NCQA), which assesses the effectiveness of our structure and operational processes, clinical quality and member satisfaction. We have developed care coordination, case management and clinical programs focused on key prevention and chronic conditions. Additionally, we have launched a multi-year plan to improve quality across the enterprise with a strong focus on enhanced patient experience and access to care, which lays the foundation for strong Medicare Star ratings in the future.

•Community-specific healthcare programs and a focus on addressing health equity. Our expertise in government-sponsored programs has helped us establish and maintain strong relationships with community-based organizations, local providers as well as our state and federal partners. Our health plans develop tailored, local programs and campaigns to support members through solutions that promote whole-person care and enhance health equity.

•Data-driven approach to improve health outcomes. We have employed an investment strategy designed to increase our capability to collect and analyze data and insights. We gather data from multiple sources including medical, vision and behavioral health claims and encounter data, pharmacy data, dental vendor claims and authorization data. We use this data to track utilization trends, identify health disparities, monitor quality of care and evaluate the effectiveness of our programs. Through these analyses, we identify and implement interventions that improve health outcomes, advance health equity and ensure members receive timely, appropriate services. The value and accuracy in the data we collect is important in demonstrating an auditable program for federal and state agencies.

•Member programs and services. Our comprehensive set of programs and services help members achieve whole-person health while supporting the overall goals of the government program. Covered healthcare benefits vary from customer to customer but cover a wide range of services, including transportation assistance, provision of durable medical equipment, behavioral health and substance use disorder services, 24-hour nurse advice line, social work services and telehealth services.

•Value-based arrangements. Our health plans offer a combination of value-based contracting models, including quality incentives and risk arrangements, that address the continuum of whole-person care. We believe value-based collaboration with providers leads to improved health outcomes, reduced costs and better member and provider experiences.

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Providers

For each of our service areas, we establish a provider network consisting of primary and specialty care physicians, hospitals, behavioral health practitioners and ancillary providers. Our network of primary care physicians is a critical component of care delivery, cost optimization and the attraction and retention of new members. Primary care physicians include family and general practitioners, pediatricians, internal medicine physicians, obstetricians and gynecologists. Specialty care physicians provide medical care to members generally upon referral by primary care physicians. Specialty care physicians include a wide array of provider types including, but not limited to, orthopedic surgeons, cardiologists and otolaryngologists. We also contract with providers on a negotiated fee arrangement for physical therapy, home healthcare, diagnostic laboratory tests, x-ray examinations, transportation, ambulance services and durable medical equipment.

Our health plans facilitate access to healthcare services for our members primarily through contracts with our providers. Our contracts with primary and specialty care physicians and hospitals are usually for a term of one to three years and renew automatically for successive one-year terms, but generally are subject to termination by either party upon prior written notice. In the absence of a contract, we typically pay providers at applicable state or federal reimbursement levels and guidelines, depending on the product (for example Medicaid or Medicare). We pay providers under a variety of methods, including fee-for-service, capitation arrangements and value-based arrangements.

•Under our fee-for-service contracts with providers, we pay a negotiated fee for covered services, this may include a case rate or fee-for service. This model is characterized as having no financial risk for the provider.

•Under our capitated contracts, providers can be paid a set amount for their services as outlined in their respective provider agreements usually on a per member per month basis and sometimes includes different rates depending on the age of the population.

•Under value-based arrangements, providers can be paid under either a capitated or fee-for-service model. The arrangement, however, contains provisions for additional payments to the providers or reimbursement from the providers based on their performance in cost and quality measures. We are committed to value-based contracting, up and downside risk, assigning members to the highest quality providers and capitation. This is done in complete partnership with our providers to increase quality outcomes and overall member satisfaction. We anticipate our membership in up and downside risk arrangements will continue to grow.

The continuum of value-based contracting includes the following models: pay-for-performance, shared savings, shared risk and full risk. We often start our provider relationships in a pay-for-performance model, in which providers are reimbursed for the fair market value of services provided. Providers benefit from this model as it gives complete transparency and clarity on actions that earn incentives.

We then transition to a risk-sharing model, in which providers are reimbursed based on the total cost of care. As we advance along this continuum, it strengthens our partnerships with our providers, enabling the delivery of high-quality care. We believe having the strongest provider partners who know how to operate well in a value-based model and who can help us drive positive outcomes for our members and good member experience is more important than owning providers, which occurs on an exception basis. Prioritizing partnership over ownership allows us to be agile and capital-efficient, focusing our resources on what we do best.

We work with physicians to help them operate efficiently by providing actionable financial and utilization information, physician and patient educational programs and disease and population health management programs. Our programs are also designed to help physicians coordinate care rendered by other providers.

We believe our local and collaborative approach with physicians and other providers gives us a competitive advantage in entering new markets. Our contracted physicians serve on local committees that assist us in implementing preventive care programs, optimizing costs and improving the overall quality of care delivered to our members, while also simplifying the administrative burdens on our providers. This approach has enabled us to strengthen our provider networks through improved physician recruitment and retention which, in turn, has helped to increase our membership base.

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The following are among the services we provide to support physicians:

•Provider Engagement Performance Tools and Processes can lead to measurable improvements in quality and health outcomes, healthcare costs and member satisfaction. High-quality provider support and service levels are important as our key customers are increasingly using performance-based measures to select and pay health plans. We have a suite of network performance tools for use by physicians and other providers which monitor the outcomes and care gaps of their individual patient panels. We meet with the providers to review their performance issues and recommend strategies for improvements in their patient panel outcomes. Our tools also allow the physician and others to see where they stand within their value-based contract.

•Our Integrated Care Model is member-centric and managed by one care manager assigned to a member who looks at the care for the member in a holistic manner. This single care manager will coordinate all care for that member including behavioral health, medical health and home-based primary care in accordance with an individualized, integrated care plan. This care manager also coordinates meetings with the member's integrated care team to assess and alter the care plan as needed. This results in better clinical outcomes and improved member satisfaction.

•The Provider Portal delivers claims and eligibility information, prior authorization submissions and status, member panels, care gaps, patient analytics and provider analytics to contracted providers to drive provider engagement and improve patient outcomes. Data and reporting are delivered via a secure, user-friendly web-based provider portal. This is provided through our suite of technology platforms.

Our contracted physicians also benefit from several of the services offered to our members and population health management programs, which assist physicians in managing their patients with chronic diseases.

Quality Improvement

Quality improvement is foundational for our organization. Our commitment to achieving better health outcomes for our members has led to recent investments in key initiatives involving people, processes, technology and partner management.

Through these initiatives, we have:

•centralized the oversight of core quality processes and programs, including the implementation of real-time operational dashboards to track numerous quality performance metrics;

•invested in new technology to enhance our access to clinical data on gaps in care, committed to integrating our numerous quality platforms into a single unified workflow and developed advanced analytics to more efficiently and effectively target our member engagement efforts for maximal impact on access, quality and member satisfaction;

•increased focus on member engagement, including tripling the capacity of our member outreach services to encourage active participation with their primary care physicians and other members of their care team and overhauling our onboarding process to focus on quality from the very first member touchpoint for Medicare, Medicaid and the Marketplace; and

•prioritized strengthening relationships with providers to improve access and quality of care for our members; an essential strategy on this front is increasing our value-based provider engagements as those enhanced partnerships have proven to drive higher quality care. We also continue to promote local participation in physician quality improvement committees chaired by local physician leaders, which ensures clinical oversight and is critical to the success of clinical quality improvement programs.

We believe these initiatives will improve members' overall health and healthcare experience and help us achieve stronger Medicare Star ratings.

CMS developed the Medicare Advantage Five-Star Quality Rating System to help consumers choose among competing plans, awarding between 1.0 and 5.0 Stars to Medicare Advantage plans based on performance on composite measures of quality. The parent organization Star rating is used for new Medicare Advantage contracts while existing contracts follow their individual Star ratings to determine bonus payments.

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Plans receive additional Medicare revenue related to the achievement of higher Star ratings that can be used to offer more attractive benefit packages to members and/or achieve higher profit margins. In addition, plans with Star ratings of 5.0 are eligible for year-round open enrollment, whereas plans with lower Star ratings have more restrictions on enrollment criteria and timing. Part C or Part D Medicare plans with Star ratings of fewer than three stars for three consecutive years are denoted as "low performing" plans on the CMS website and in the CMS "Medicare and You" handbook. In addition, CMS has the authority to terminate the Medicare Advantage and PDP contracts for plans rated below three Stars for three consecutive years for any Part (C or D). As a result, plans that achieve higher Star ratings may have a competitive advantage over plans with lower Star ratings.

As further validation of our quality objectives, we pursue accreditation by independent organizations that have been established to promote healthcare quality. NCQA Health Plan and Health Equity Accreditation programs provide unbiased, third-party reviews to verify and publicly report results on specific quality metrics including Healthcare Effectiveness Data and Information Set (HEDIS) and Consumer Assessment of Healthcare Providers and Systems (CAHPS). We pursue and achieve accreditation in the majority of states where we currently have health plan operations. We also verify the credentials and backgrounds of our partner providers using standards supported by NCQA to ensure the quality of our networks.

Accreditation is only one measure of our ability to provide access to quality care for our members. The majority of state Medicaid programs also have specific quality measures that drive our clinical quality improvement efforts. Performance is monitored by health plan quality improvement committees and our corporate population health management and quality improvement teams.

We remain committed to our quality initiatives and continue to focus on investments that we expect to translate into value over the next few years.

ETHICS AND COMPLIANCE

Our Ethics and Compliance program assists the organization in developing effective internal controls that promote the prevention and detection of fraud, waste and abuse and the resolution of instances of conduct that do not conform to federal and state law, private payor healthcare program requirements or our ethics and business policies. Responsibilities also include the ongoing maintenance of our privacy program and oversight of the Health Insurance Portability and Accountability Act of 1996 (HIPAA) as it pertains to us and our business units from a compliance, business and technical perspective.

Three standards by which corporate compliance programs in the healthcare industry are measured are the Federal Organizational Sentencing Guidelines, the CMS Chapter Guidance and the Compliance Program Guidance series issued by the Department of Health and Human Services' Office of the Inspector General. Our program contains each of the seven elements suggested by these authorities.

These key components are:

•written standards of conduct;

•designation of compliance officers and compliance committees;

•effective training and education;

•effective lines for reporting and communication;

•enforcement of standards through well-publicized disciplinary guidelines and actions;

•internal monitoring and auditing; and

•prompt response to detected offenses and development of corrective action plans.

The goal of our program is to build a culture of integrity, ethics and compliance, which is assessed periodically to measure engagement and effectiveness. Our Enterprise Ethics and Compliance intranet site, accessible to all team members, links to our Code of Conduct and guidance for team members to assist them in reporting concerns or asking questions. Our Ethics and Compliance Helpline is a toll-free number and web-based reporting tool operated by a third-party independent of the Company and allows team members or other persons to anonymously report suspected incidents of misconduct, fraud, waste, abuse or other compliance violations, concerns or questions. Furthermore, our Board of Directors' Audit and Compliance Committee reviews ethics and compliance report data quarterly.

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CORPORATE SUSTAINABILITY

Our steadfast commitment to the health and social well-being of our communities, fostering a healthy environment and our culture of sound and ethical corporate governance, extends far beyond individual programs or initiatives. We provide access to high-quality healthcare, innovative programs and a wide range of health solutions that help people live healthier lives. Our mission is to transform the health of the communities we serve, one person at a time. The Company's Sustainability Framework (the Framework) is comprised of areas of focus core to our mission, our strategy and to delivering positive impact and long-term value to our stakeholders. The Framework highlights our commitment to healthy individuals and healthy communities and builds upon our long history of identifying and removing barriers to health. Implementation of the Framework is overseen by the Board of Directors' Governance Committee and sustainability initiatives throughout the organization are driven by a cross-functional network of executive representatives.

Annually, we issue a sustainability report to communicate the value of our efforts, a Task Force on Climate-related Financial Disclosures (TCFD) Index report outlining our governance structure, strategy, risks, opportunities and metrics and target-setting related to managing climate change, and a Sustainability Accounting Standards Board (SASB) Index report aligned with the SASB Managed Care standard, providing sustainability disclosures to our stakeholders. The Framework enables us to communicate impact and progress on sustainability matters important to our stakeholders and aligned with our business strategy and long-term plans. Sustainability financial reporting disclosures are overseen by the Board of Directors' Audit and Compliance Committee. Our sustainability initiatives and commitments enable us to build healthier communities, empower health, foster a healthy environment and drive business accountability. Interested parties can find our sustainability-related reports within the Investors section of our website, the URL of which is https://investors.centene.com/esg. Please note: Nothing on our website, including our sustainability reports or sections thereof, shall be deemed incorporated by reference into this Annual Report.

COMPETITION

We operate in a highly competitive environment in an industry subject to ongoing significant changes, including business consolidations, new strategic alliances, market pressures and regulatory and legislative reform both at the federal and state level. This includes, but is not limited to, the federal and state healthcare reform legislation described under the heading "Regulation." In addition, changes to the political environment may drive additional changes to the competitive landscape.

We compete with other MCOs, specialty companies and other non-traditional competitors to acquire and retain state, county, federal and commercial contracts. Before granting a contract, state and federal government agencies consider many competitive factors. These factors include quality of care, financial condition, stability and resources, local investments and offerings and established or scalable infrastructure with a demonstrated ability to deliver services and establish comprehensive provider networks.

We also compete to enroll new members and retain existing members. People who wish to enroll in a managed healthcare plan or to change healthcare plans typically choose a plan based on the quality of care and services offered, ease of access to services, a specific provider being part of the network and the availability of supplemental benefits. We believe that the principal competitive features affecting our ability to retain and increase membership include the range and prices of benefit plans offered, size and quality of provider network, quality of service, quality ratings, responsiveness to customer demands, financial stability, comprehensiveness of coverage, diversity of product offerings, market presence and reputation.

We also compete with other MCOs in establishing provider networks. When contracting with various health plans, we believe that providers consider existing and potential member volume, reimbursement rates, provider experience, value-based payment programs, speed of reimbursement and administrative service capabilities. See "Risk Factors - Competition may limit our ability to increase penetration of the markets that we serve."

The relative importance of each of the aforementioned competitive factors and the identity of our key competitors varies by market, including by geography and by product. We believe that we compete effectively against other healthcare industry participants.

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REGULATION

Our operations are comprehensively regulated at the local, state and federal levels. Government regulation of the provision of healthcare products and services is a changing area of law that varies from jurisdiction to jurisdiction. States have implemented National Association of Insurance Commissioners (NAIC) model laws and regulations, requiring governance practices and risk and solvency assessment reporting. States have adopted these or similar measures to enhance oversight relating to corporate governance and internal controls of health maintenance organizations (HMOs) and insurance companies. We are required to maintain a risk management framework and file reports with state insurance regulators.

Regulatory agencies have substantial discretion to issue regulations and to interpret and enforce laws and rules. Changes in the regulatory environment and applicable laws and rules also may occur periodically, including in connection with changes in political party or administration at the state and federal levels. The ultimate content, timing or effect of any potential future legislation enacted under new administrations remains uncertain.

Our regulated subsidiaries are licensed to operate as HMOs, preferred provider organizations (PPOs), third party administrators (TPAs), utilization review organizations, pharmacies, direct care providers and/or insurance companies in their respective states. In each of the jurisdictions in which we operate, we are regulated by the relevant health and/or human services departments, Medicaid agencies, boards of pharmacy and other healthcare providers, departments of insurance and departments of health that oversee the activities of MCOs and health plans providing or arranging to provide services to enrollees.

The process for obtaining authorization to operate as an MCO, health insurance plan, PDP, pharmacy or provider organization is complex and requires us to demonstrate to the regulators the adequacy of the health plan's organizational structure, financial resources, utilization review, quality assurance programs, proper billing, complaint procedures, provider network and procedures for covering emergency medical conditions. For example, under both state MCO statutes and insurance laws, our health plan subsidiaries, as well as our applicable specialty companies, must comply with minimum statutory capital and other financial solvency requirements, such as deposit and surplus requirements. Insurance regulations may also require prior state approval of acquisitions of other MCO businesses and the payment of dividends, as well as notice for loans or the transfer of funds. Our subsidiaries are also subject to periodic state and federal reporting requirements. In addition, each health plan and individual healthcare provider must meet criteria to secure the approval of state regulatory authorities before implementing certain operational changes, including, without limitation, changes to existing offerings, the development of new product offerings, certain organizational restructurings and, in some states, the expansion of service areas.

States have adopted a number of laws and regulations that may affect our business and results of operations. These laws and regulations in certain states include:

•premium taxes or similar assessments imposed on us;

•stringent prompt payment laws requiring us to pay claims within a specified period of time;

•mandated coverage of specific drugs or services;

•state-specific medical loss ratios that may be more stringent than federal requirements;

•disclosure requirements regarding provider fee schedules and coding procedures; and

•programs to monitor and supervise the activities and financial solvency of provider groups.

We are regulated as an insurance holding company and are subject to the insurance holding company acts of the states in which our insurance company and HMO subsidiaries are domiciled. These acts contain certain reporting requirements as well as restrictions on transactions between an insurer or HMO and its affiliates. These holding company laws and regulations generally require insurance companies and HMOs within an insurance holding company system to register with the insurance department of each state where they are domiciled and to file with those states' insurance departments reports describing their capital structure, ownership, financial condition, intercompany transactions and general business operations. In addition, depending on the size and nature of the transaction, various notice and reporting requirements generally apply to transactions between insurance companies and HMOs and their affiliates within an insurance holding company structure. Some insurance holding company laws and regulations require prior regulatory approval or, in certain circumstances, prior notice of certain material intercompany transfers of assets as well as certain transactions between insurance companies, HMOs, their parent holding companies and affiliates. Among other provisions, state insurance and HMO laws may restrict the ability of our regulated subsidiaries to pay dividends.

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Additionally, the holding company regulations of the states in which our subsidiaries are domiciled restrict the ability of any person to obtain control of an insurance company or HMO without prior regulatory approval. Under those statutes, without such approval or an exemption, no person may acquire any voting security of an insurance holding company that controls an insurance company or HMO, or merge with such a holding company, if as a result of such transaction such person would "control" the insurance holding company. "Control" is generally defined in state insurance laws as the direct or indirect power to direct or cause the direction of the management and policies of a company and is presumed to exist if a person directly or indirectly owns or controls 10% or more of the voting securities of a company.

PPO laws and regulations also vary by state and cover all or most of the subject areas referred to above.

Our pharmacies must be licensed to do business as pharmacies in the states in which they are located. Our pharmacies must also register with the U.S. Drug Enforcement Administration and individual state-controlled substance authorities to dispense controlled substances.

Our healthcare providers must be licensed to practice medicine and do business as care providers in the state in which they are located. In addition, they must be in good standing with the applicable medical board, board of nursing or other applicable entity. Furthermore, they must not be excluded from participation at either the state or federal levels. Our facilities are periodically reviewed by state departments of health and other regulatory agencies to ensure the environments are safe to provide care.

Federal law has also implemented other health programs that are partially funded by the federal government, such as Medicaid and Medicare programs. Our Medicaid programs are regulated and administered by various state regulatory bodies. Federal funding remains critical to the viability of these programs. Federal law permits the federal government to oversee and, in some cases, to enact, regulations and other requirements that must be followed by states with respect to these programs. Medicaid is administered at the federal level by CMS. Comprehensive legislation, specifically Title XVIII of the Social Security Act, governs our Medicare program. In addition, our Medicare contracts are subject to regulation by CMS. CMS has the right to audit Medicare contractors and the healthcare providers and administrative contractors who provide certain services on their behalf to determine the quality of care being rendered and the degree of compliance with CMS contracts and regulations.

The ACA transformed the U.S. healthcare system through a series of complex initiatives. Some of the ACA's most significant provisions include the imposition of fees, assessments and taxes, the establishment of federally-facilitated and state-based Health Insurance Marketplaces where individuals and small groups may purchase health coverage; the implementation of certain premium stabilization programs designed to apportion risk amongst insurers; and optional Medicaid Expansion. State and federal regulators have continued to provide additional guidance and specificity to the ACA, and we continue to monitor this new information and evaluate its potential impact on our business. For a further discussion of the ACA, see "Risk Factors - Significant changes or judicial challenges to the ACA could materially and adversely affect our results of operations, financial condition, and cash flows."

We must also comply with laws and regulations related to the award, administration and performance of U.S. Government contracts. Government contract laws and regulations affect how we do business with our customers and, in some instances, impose added costs on our business. For example, money laundering is a method of attempting to conceal the origins of money gained through illegal activity and is itself a crime that can result in substantial criminal and civil sanctions including fines and imprisonment. To ensure compliance with anti-money laundering laws and regulations, it is our policy to conduct business only with legitimate customers and counterparties whose funds are derived from legitimate commercial activity. In addition, as a result of our international operations, we are subject to the U.S. Foreign Corrupt Practices Act (FCPA) and similar worldwide anti-corruption laws, including the U.K. Bribery Act of 2010, which generally prohibit companies and their intermediaries from making improper payments to non-U.S. officials for the purpose of obtaining or retaining business. A violation of specific laws and regulations by us and/or our agents could result in, among other things, the imposition of fines and penalties on us, changes to our business practices, the termination of our contracts or debarment from bidding on contracts.

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State and Federal Businesses; Contracts

In addition to being a licensed insurance company or HMO, in order to be a Medicaid MCO in each of the states in which we operate, we generally must operate under a contract with the state's Medicaid agency. States generally either use a formal request for proposal process, reviewing a number of bidders, or award individual contracts to qualified applicants that apply for entry to the program. Under these state Medicaid program contracts, we receive monthly payments based on specified capitation rates determined on an actuarial basis. These rates differ by membership category and by state depending on the specific benefits and policies adopted by each state. In addition, several of our Medicaid contracts require us to maintain Medicare Advantage D-SNPs, which are regulated by CMS and the state Medicaid agency, for dual-eligible individuals within the state.

We provide Medicare Advantage, PDPs, D-SNPs and MMPs which are provided under contracts with CMS and subject to federal regulation regarding the award, administration and performance of such contracts. CMS also has the right to audit our performance to determine our compliance with these contracts, as well as other CMS regulations and the quality of care we provide to Medicare beneficiaries under these contracts.

As of December 31, 2023, we operated in 28 states under federally-facilitated Marketplace contracts with CMS and state-based exchanges. We operate under a Memorandum of Understanding with the Arkansas Department of Human Services Division of Medical Services and the Arkansas Insurance Department to participate in the Medicaid expansion model that Arkansas has adopted (referred to as AR Health and Opportunity for Me program).

Our government contracts include government-sponsored managed care and administrative services contracts through the TRICARE program and certain other healthcare-related government contracts.

Our state and federal contracts and the legal and regulatory provisions applicable to us generally set forth requirements for operating, including provisions relating to:

•eligibility, enrollment and dis-enrollment processes;

•covered services;

•eligible providers;

•subcontractors;

•record-keeping and record retention;

•periodic financial and informational reporting;

•quality assurance;

•accreditation;

•health education and wellness and prevention programs;

•timeliness of claims payment;

•financial standards;

•safeguarding of member information;

•fraud, waste and abuse detection and reporting;

•grievance procedures;

•use and compensation of brokers; and

•organization and administrative systems.

A health plan or individual health insurance provider's compliance with these requirements is subject to significant monitoring by state regulators and by CMS, including monthly, quarterly and annual reporting, all of which are generally state-specific. A health plan is also subject to periodic comprehensive quality assurance evaluations by a third-party reviewing organization and generally by the insurance department of the jurisdiction that licenses the health plan. A health plan or individual health insurance provider must also submit reports to various regulatory agencies, including quarterly and annual statutory financial statements and utilization reports.

Our health plans operate through individual state contracts, generally with an initial term of one to five years. The contracts often have renewal or extension terms or are renewable through the state's reprocurement process. The contracts generally are subject to termination for cause, an event of default or lack of funding, among other things.

Our federally-facilitated Marketplace contracts and state-based exchanges are renewable on an annual basis.

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Other Fraud, Waste and Abuse Laws

Investigating and prosecuting healthcare fraud, waste and abuse continues to be a top priority for state and federal law enforcement agencies. These efforts span multiple products, including Medicare, Medicaid, Health Insurance Marketplace and commercial plans. Pertinent fraud, waste and abuse laws include the federal False Claims Act, which prohibits the known filing of a false claim or the known use of false statements to obtain payment from the federal government. Many states have their own statutes that closely resemble the federal False Claims Act. A plan or provider may engage in other activities that violate fraud, waste and abuse laws, such as paying or receiving kickbacks or other inducements for the referral of members or coverage of products (such as prescription drugs), billing for unnecessary medical services or making false or misleading sales-related representations.

Our program integrity efforts aim to detect, prevent and correct fraud, waste and abuse. In addition to following up on leads from members, providers and our own team members, we use data analytics to identify suspicious activity and, as appropriate, will deny improperly billed claims, recover improperly made payments and make referrals to regulatory entities and law enforcement for further review. The laws and regulations relating to fraud, waste and abuse and the requirements applicable to health plans, PDPs and providers participating in these programs are complex and change regularly. Compliance with these laws may require substantial resources. We are constantly looking for ways to improve our fraud, waste and abuse detection methods. While we have both prospective and retrospective processes to identify abusive patterns and fraudulent billing, we continue to increase our capabilities to proactively detect inappropriate billing prior to payment.

Privacy Regulations

We are subject to various international, federal, state and local laws and rules regarding the use, security and disclosure of protected health information, personal information and other categories of confidential or legally protected data that our businesses handle. Such laws and rules include, without limitation, HIPAA, the Federal Trade Commission Act, the Gramm-Leach-Bliley Financial Modernization Act of 1999 (Gramm-Leach-Bliley Act), the General Data Protection Regulation (GDPR) and state privacy and security laws such as the California Confidentiality of Medical Information Act and the California Online Privacy Protection Act. Privacy and security laws and regulations often change due to new or amended legislation, regulations or administrative interpretation. A variety of state and federal regulators enforce these laws, including but not limited to the U.S. Department of Health and Human Services (HHS), the Federal Trade Commission, state attorneys general and other state regulators.

HIPAA is designed to improve the portability and continuity of health insurance coverage, simplify the administration of health insurance through standard transactions and ensure the privacy and security of individual health information. Among the requirements of HIPAA are the Administrative Simplification provisions which include: standards for processing health insurance claims and related transactions (Transactions Standards); requirements for protecting the privacy and limiting the use and disclosure of medical records and other personal health information (Privacy Rule); and standards and specifications for safeguarding personal health information which is maintained, stored or transmitted in electronic format (Security Rule). The Health Information Technology for Economic and Clinical Health (HITECH) Act amended certain provisions of HIPAA and enhanced data security obligations for covered entities and their business associates. HITECH also mandated individual notifications in instances of a data breach, provided enhanced penalties for HIPAA violations and granted enforcement authority to states' Attorneys General in addition to the HHS Office for Civil Rights. The HIPAA Omnibus Rule further enhanced the changes under the HITECH Acts and the Genetic Information Nondiscrimination Act of 2008 which clarified that genetic information is protected under HIPAA and prohibits most health plans from using or disclosing genetic information for underwriting purposes. These regulations also establish significant criminal penalties and civil sanctions for non-compliance. The preemption provisions of HIPAA provide that the federal standards will not preempt state laws that are more stringent than the related federal requirements.

The Privacy and Security Rules and HITECH/Omnibus enhancements established requirements to protect the privacy of medical records and safeguard personal health information maintained and used by healthcare providers, health plans, healthcare clearinghouses and their business associates.

The Security Rule requires healthcare providers, health plans, healthcare clearinghouses and their business associates to implement administrative, physical and technical safeguards to ensure the privacy and confidentiality of health information electronically stored, maintained or transmitted. The HITECH Act and Omnibus Rule enhanced a federal requirement for notification when the security of protected health information is breached. In addition, there are state laws that have been adopted to provide for, among other things, private rights of action for breaches of data security and mandatory notification to persons whose identifiable information is obtained without authorization.

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The requirements of the Transactions Standards apply to certain healthcare related transactions conducted using "electronic media." Since "electronic media" is defined broadly to include "transmissions that are physically moved from one location to another using portable data, magnetic tape, disk or compact disk media," many communications are considered to be electronically transmitted. Under HIPAA, health plans and providers are required to have the capacity to accept and send all covered transactions in a standardized electronic format. Penalties can be imposed for failure to comply with these requirements. The Transactions Standards were modified in October 2015 with the implementation of the ICD-10 coding system.

In addition, we process and maintain personal card data, particularly in connection with our Marketplace business. As a result, we must maintain compliance with the Payment Card Industry Data Security Standard, which is a multifaceted security standard intended to optimize the security of credit, debit and cash card transactions and protect cardholders against misuse of their personal information.

HUMAN CAPITAL RESOURCES

As the pace of change and complexity in the broader environment accelerates, we continue our strong investment in creating a mission-driven culture. We intentionally attract, develop and retain top talent who have diverse voices and experiences, passion and vision well-positioned to help us transform the health of communities we serve. As of December 31, 2023, we had approximately 67,700 team members. Circle Health, divested in January 2024, had approximately 8,300 team members at December 31, 2023.

Workforce Culture and Benefits

We maintain the health and well-being of our team members as one of the main driving factors of business decisions. We offer benefits to our team members to help them achieve optimum work-life balance and meet their needs as well as the needs of their families.

We have adopted a modern work environment. The majority of our team members leverage remote and hybrid work arrangements and are empowered to do their best work in the way they work best. We are intentional in our efforts to foster a collaborative, inclusive and engaging work environment, including monthly forums for people leaders, robust weekly communications for all team members, virtual all-employee meetings and employee programming to help amplify multiple perspectives and lived experiences.

Our compensation and benefits programs are market competitive and designed to attract and retain talent. Our overall compensation philosophy is to pay for performance by linking the achievement of both Company and individual goals to total compensation. In addition to traditional medical and pharmacy benefits, we also offer wellness programs, employee assistance program, tuition reimbursement/educational assistance, adoption reimbursement, parental leave and caregiver leave. Our parental leave offers six weeks of fully compensated time for caregivers with an additional eight weeks for mothers, providing up to 14 weeks of fully compensated maternity leave. In addition, we offer paid community volunteer time to encourage our team members to participate in volunteer programs and support the communities in which we serve.

We leverage a continuous listening approach with our team members, actively soliciting their perspective on our culture and their experiences and engagement. This feedback allows us to attract and retain our mission-driven workforce.

Diversity, Equity and Inclusion

We believe that a diverse workforce and an equitable, inclusive environment is critical to achieving our mission and advancing high performing teams. Our commitment to diversity, equity and inclusion is foundational to our strategy. Our talent advisors and hiring leaders leverage a diverse pipeline resulting in a workforce with team members from a wide range of lived experiences.

To promote engagement, inclusiveness and strong connections between team members across the organization, we have a wide range of Employee Inclusion Groups (EIGs). These voluntary, employee-led groups provide professional connections and leadership opportunities for all team members including military veterans and their families, individuals with disabilities and caregivers of individuals with disabilities, women, LGBTQIA+, multicultural team members and intergenerational team members. Today, there are over 23,000 team members participating in our EIGs.

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Talent Development

Through our robust talent infrastructure, we continue working to deepen and prepare our diverse talent bench and workforce, which is instrumental to executing our long-term business strategy. We are committed to developing a skill-rich workforce who can thrive in the evolving world of work, enabling our organization to further accelerate growth, inclusivity and innovation. Through Centene University, we have designed learning and development at scale, using new digital tools, real-time virtual learnings and customized leadership development programs, accessible to all team members, in a modern learning environment.

In addition to building new workforce skills, we utilize our ongoing enterprise talent reviews, succession planning, career development planning and comprehensive workforce analytics to provide insights to senior leaders to inform actions and drive intentional talent results through our People Plans, the integrated human capital component of our annual operating plans.

INFORMATION ABOUT OUR EXECUTIVE OFFICERS

The following table sets forth information regarding our executive officers, including their ages, at February 16, 2024:

Name Age Position

Sarah M. London 43 Chief Executive Officer

Andrew L. Asher 55 Executive Vice President, Chief Financial Officer

Kenneth J. Fasola 64 President

Christopher A. Koster 59 Executive Vice President, Secretary and General Counsel

Susan R. Smith 48 Chief Operating Officer

Sarah M. London.Ms. London has served as our Chief Executive Officer since March 2022. From September 2021 to March 2022, she served as Vice Chairman. She served as President, Centene Health Care Enterprises and Executive Vice President, Advanced Technology from March 2021 to September 2021. From September 2020 to February 2021, she served as Senior Vice President, Technology Innovation and Modernization. Prior to joining Centene, she served as both Senior Principal and Partner for Optum Ventures from May 2018 to March 2020 and Chief Product Officer of Optum from March 2016 to May 2018.

Andrew L. Asher. Mr. Asher has served as our Executive Vice President, Chief Financial Officer since May 2021. From January 2020 to May 2021, he served as Executive Vice President, Specialty. Prior to joining Centene, he served as the Chief Financial Officer of WellCare from November 2014 to January 2020.

Katie N. Casso. Ms. Casso has served as our Senior Vice President, Corporate Controller and Chief Accounting Officer since April 2021. From January 2016 to March 2021, she served as Vice President, Assistant Controller.

Kenneth J. Fasola. Mr. Fasola has served as our President since December 2022. From January 2022 to December 2022, he served as Executive Vice President, Health Care Enterprises. Mr. Fasola joined Centene upon the acquisition of Magellan Health in January 2022, where he served as the Chief Executive Officer since November 2019. From April 2019 to November 2019, he served as Chief Growth Officer of Ancillary and Individual Health Services at United Healthcare. From October 2010 to April 2019, he served as Chairman, President and Chief Executive Officer of HealthMarkets, Inc.

Christopher A. Koster. Mr. Koster has served as our Executive Vice President, Secretary and General Counsel since December 2021. From February 2020 to December 2021, he served as Senior Vice President, Secretary and General Counsel. From February 2017 to February 2020, he served as Senior Vice President, Corporate Services. Prior to joining Centene, Mr. Koster served as Missouri Attorney General for eight years.

Susan R. Smith. Ms. Smith has served as our Chief Operating Officer since January 2024. Ms. Smith has been an employee of the Company since June 2023. From August 2022 through December 2022, she served as Senior Vice President of Clinical, Quality and Enterprise Solutions President at Humana Inc. From July 2021 through July 2022, she served as Senior Vice President of Clinical Solutions at Humana Inc. She also previously served as Senior Vice President of Medicare at Humana Inc. from August 2019 through June 2021. From October 2016 through July 2019, she served as Senior Vice President of Healthcare Quality Reporting and Improvement at Humana Inc.

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Available Information

We are subject to the reporting and information requirements of the Securities Exchange Act of 1934, as amended (Exchange Act) and, as a result, we file periodic reports and other information with the Securities and Exchange Commission (SEC). We make these filings available on our website free of charge, the URL of which is https://www.centene.com, as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. The SEC maintains a website (https://www.sec.gov) that contains our annual, quarterly and current reports and other information we file electronically with the SEC. Stockholders may obtain a copy of this Annual Report on Form 10-K, without charge, by writing: Investor Relations, Centene Corporation, 7700 Forsyth Boulevard, St. Louis, MO 63105. Please note: Information on our website does not constitute part of this Annual Report on Form 10-K.

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Item 1A. Risk Factors.

You should carefully consider the risks described below before making an investment decision. The trading price of our common stock could decline, and our results of operations, financial condition and cash flows could be materially adversely affected due to any of these risks, in which case you could lose all or part of your investment. You should also refer to the other information in this filing, including our consolidated financial statements and related notes. The risks and uncertainties described below are those that we currently believe may materially affect our Company. Additional risks and uncertainties that we are unaware of or that we currently deem immaterial also may become important factors that affect our Company.

Risks Relating to Our Business

Failure to accurately estimate and price our medical expenses or effectively manage our medical costs or related administrative costs could have a material adverse effect on our results of operations, financial condition and cash flows.

Our profitability depends to a significant degree on our ability to accurately estimate and effectively manage expenses related to health benefits through, among other things, our ability to contract favorably with hospitals, physicians and other healthcare providers. For example, our government-sponsored health programs revenue is often based on bids submitted before the start of the initial contract year. If our actual medical expenses exceed our estimates, our health benefits ratio (HBR), or our expenses related to medical services as a percentage of premium revenues, would increase and our profits would decline. Because of the narrow margins of our health plan business, relatively small changes in our HBR can create significant changes in our financial results. Changes in healthcare regulations and practices, the level of utilization of healthcare services, out-of-network utilization and pricing, medical claim submission patterns, hospital and pharmaceutical costs, including new high-cost specialty drugs, unexpected events, such as natural disasters, the effects of climate change, acts of war or aggression, geopolitical instability, major epidemics, pandemics and their resurgence, or newly emergent diseases, new medical technologies, increases in provider fraud and other external factors, including general economic conditions such as interest rates, inflation and unemployment levels, are generally beyond our control and could reduce our ability to accurately predict and effectively control the costs of providing health benefits. Also, member behavior could continue to be influenced by the uncertainty surrounding the ACA, including potential further legal challenges to the ACA or potential changes in premium subsidies.

Our medical expenses include claims reported but not paid, estimates for claims incurred but not reported (IBNR), and estimates for the costs necessary to process unpaid claims at the end of each period. Our development of the medical claims liability estimate is a continuous process that we monitor and refine on a monthly basis as claims receipts and payment information as well as inpatient acuity information becomes available. As more complete information becomes available, we adjust the amount of the estimate, and include the changes in estimates in medical expenses in the period in which the changes are identified. Given the extensive judgment and uncertainties inherent in such estimates, there can be no assurance that our medical claims liability estimate will be accurate, and any adjustments to the estimate may unfavorably impact our results of operations and financial condition and may be material.

Assumptions and estimates are utilized in establishing premium deficiency reserves. For example, we have established a premium deficiency reserve in connection with the 2024 Medicare Advantage business as of December 31, 2023. If our assumptions are inaccurate, we may be required to increase our premium deficiency reserves which could have a material adverse effect on our results of operations and financial condition.

Additionally, when we commence operations in a new state or region or launch a new product, we have limited information with which to estimate our medical claims liability. For a period of time after the inception of the new business, we base our estimates on government-provided historical actuarial data and limited actual incurred and received claims and inpatient acuity information. The addition of new categories of eligible individuals, as well as evolving Health Insurance Marketplace plans, may pose difficulty in estimating our medical claims liability.

From time to time in the past, our actual results have varied from our estimates, particularly in times of significant changes in the number of our members. If it is determined that our estimates are significantly different than actual results, our results of operations and financial condition could be materially adversely affected. In addition, if there is a significant delay in our receipt of premiums, our business operations, cash flows or earnings could be negatively impacted.

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Our Medicare programs are subject to a variety of unique risks that could adversely impact our financial results.

If we fail to design and maintain programs that are attractive to Medicare participants; if our Medicare operations are subject to negative outcomes from program audits, sanctions, penalties or other actions; if we do not submit adequate bids in our existing markets or any expansion markets; if our existing contracts are modified or terminated; or if we fail to maintain or improve our quality Star ratings, our current Medicare business and our ability to expand our Medicare operations could be materially and adversely affected, negatively impacting our results of operations and financial performance. As of October 2023, approximately 87% of membership was associated with contracts rated 3.0 stars or better. Our quality improvement goal is to move 85% of our members into contracts with 3.5 stars or better for rating year 2026 (anticipated to be published in October 2025), which may not be achieved. Additionally, although we expect to have a higher percentage of D-SNP members than most of our competitors, we may be unsuccessful in advocating for adjustments in the Star score rating system or other risk adjustment criteria to reflect the socio-economic barriers to health for this population.

Despite our operational efforts to improve our Star ratings, there can be no assurances that we will be successful in maintaining or improving our Star ratings in future years. Our quality bonus and rebates may continue to be negatively impacted and our Medicare Advantage and PDP contracts may be terminated by CMS. For example, two of our Medicare Advantage contracts have received notice of termination for plan year 2025 and other Medicare Advantage contracts have received Star scores of below 3.0 stars for two consecutive years and accordingly could be terminated for plan year 2026 if their Star scores do not improve. The attractiveness of our Medicare Advantage plans may be reduced if we are unable to maintain or improve these ratings, or if there are changes to the ratings system that make achieving and maintaining ratings of 3.0 stars or higher more difficult.

CMS establishes annually different pricing components of the Medicare Advantage program that may not adequately reflect changes in the underlying health care costs, and which may reduce the profitability or desirability of various Medicare Advantage plans. For calendar year 2024, CMS estimates that the risk model revisions together with the impact of normalization will reduce payments by 2.16%. As a result of these changes, and our 2024 Medicare Advantage bid design and membership projections, we have established a premium deficiency reserve in connection with the 2024 Medicare Advantage business as of December 31, 2023. In addition, CMS' new risk model may not account for the full severity of several chronic conditions, which could also disproportionately affect the dual eligible population who are more medically complex and face additional socio-economic barriers to health compared to others. As a result of these changes and potential future changes to Medicare Advantage pricing components, we may not be able to design products that will be profitable, attractive or competitive for this population.

In addition, proposed CMS regulations may require beneficiaries dually enrolled in Medicare and Medicaid to receive integrated care through Medicare Advantage D-SNPs, which may restrict our product offerings in some geographic service areas.

There are also specific additional risks under Title XVIII, Part D of the Social Security Act associated with our provision of Medicare Part D prescription drug benefits as part of our Medicare Advantage plan offerings. These risks include potential uncollectibility of receivables, inadequacy of pricing assumptions, inability to receive and process information and increased pharmaceutical costs, as well as the underlying seasonality of this business, and extended settlement periods for claims submissions. Our failure to comply with Part D program requirements can result in financial and/or operational sanctions on our Part D products, as well as on our Medicare Advantage products that offer no prescription drug coverage.

Risk-adjustment payment systems make our revenue and results of operations more difficult to estimate and could result in retroactive adjustments that have a material adverse effect on our results of operations, financial condition and cash flows.

Most of our government customers employ risk-adjustment models to determine the premium amount they pay for each member. This model pays more for members with predictably higher costs according to the health status of each beneficiary enrolled. Premium payments are generally established at fixed intervals according to the contract terms and then adjusted on a retroactive basis. We reassess the estimates of the risk adjustment settlements each reporting period and any resulting adjustments are made to premium revenue. In addition, revisions by our government customers to the risk-adjustment models have reduced and may continue to reduce our premium revenue.

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As a result of the variability of certain factors that determine estimates for risk-adjusted premiums, including plan risk scores, the actual amount of retroactive payments could be materially more or less than our estimates. Consequently, our estimate of our plans' risk scores for any period, and any resulting change in our accrual of premium revenues related thereto, could have a material adverse effect on our results of operations, financial condition and cash flows. The data provided to our government customers to determine the risk score are subject to audit by them even after the annual settlements occur. These audits may result in the refund of premiums to the government customer previously received by us, which could be significant and would reduce our premium revenue in the year that repayment is required. This in turn could have a material adverse effect on our results of operations, financial condition and cash flows.

Government customers have performed and continue to perform audits of selected plans to validate the provider coding practices under the risk adjustment model used to calculate the premium paid for each member. In 2023, CMS announced the removal of the fee-for-service adjuster from the risk adjustment data validation audit methodology beginning for audit year 2018, which could increase our audit error scores. We anticipate that CMS will continue to conduct audits of our Medicare contracts and contract years on an on-going basis. An audit may result in the refund of premiums to CMS. It is likely that a payment adjustment could occur as a result of these audits; and any such adjustment could have a material adverse effect on our results of operations, financial condition and cash flows.

Any failure to adequately price or anticipate demand for products offered, anticipate changes to the competitive landscape or any reduction in products offered for Medicare Advantage and in the Health Insurance Marketplace may have a material adverse effect on our results of operations, financial condition and cash flows.

In the Health Insurance Marketplace, we may be adversely impacted if we have not accurately predicted the health needs of our members, including due to individuals exiting the market causing the morbidity of the risk pool to rise without a proportionate change to risk adjustment. In addition, the risk adjustment provisions of the ACA established to apportion risk amongst insurers may not be effective in appropriately mitigating the financial risks related to the Health Insurance Marketplace product, are affected by our members' acuity relative to the membership acuity of other insurers and are subject to a high degree of estimation and variability, including estimation of the ultimate level of program funding based on the financial performance of other participants. Further, changes in the competitive market for both Health Insurance Marketplace and the Medicare Advantage products over time, changes to member eligibility in the program design or changes in the financial incentives of individuals, brokers and competitors to participate in such products may make pricing difficult to predict. For example, competitors may introduce pricing, broker incentives or broker distribution channels that we may not be able to match, which may adversely affect our ability to compete effectively. Competitors may also choose to exit the market altogether or otherwise suffer financial difficulty, which could adversely impact the pool of potential insured, affect collectability of risk adjustment payable or require us to increase premium rates. Any significant variation from our expectations regarding acuity, enrollment levels, adverse selection, out-of-network costs or other assumptions utilized in setting adequate premium rates could have a material adverse effect on our results of operations, financial condition and cash flows for both our Health Insurance Marketplace and Medicare Advantage products.

In addition, we may be unable to accurately predict demand for both our Health Insurance Marketplace and Medicare Advantage products, as demand depends on factors outside of our control such as the competitiveness of our bids, the broker distribution channels and the entry and exit of other competitors in the markets. If we experience higher demand for our products than anticipated, we may not have adequate staffing to be able to adequately meet service level requirements in our call centers, which could negatively impact our quality scores, our relationships with our members and providers, as well as our regulators.

If we are not successful in procuring new government contracts or renewing existing government contracts, or if we receive an adverse finding or review resulting from an audit or investigation, our business may be adversely affected.

A substantial portion of our business relates to the provision of managed care programs and selected services to individuals receiving benefits under governmental assistance or entitlement programs. We provide these and other healthcare services under contracts with government entities in the geographic areas in which we operate. Our government contracts are generally intended to run for a fixed number of years and may be extended for an additional specified number of years if the contracting entity or its agent elects to do so. Initial bids for these contracts and initial implementation of these contracts can have substantial start-up costs and may ultimately be unsuccessful. For example, prior to obtaining a certificate of authority in most jurisdictions, we must establish a provider network and have systems in place to administer a state contract and process claims. Once a new contract is awarded, we may experience delays in operational start dates. As a result of these factors, start-up operations may decrease our profitability, or we may not grow as quickly as we anticipated.

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When our contracts with government entities expire, they may be opened for bidding by competing healthcare providers, and there is no guarantee that our contracts will be renewed or extended. For example, as part of the normal course of business, several of our Medicaid contracts are up for reprocurement in 2024 (for contracts largely commencing in 2025), including but not limited to Florida, Georgia, a portion of our business in Texas and Michigan. Competitors may be more aggressive in the descriptions of their capabilities and the assumptions utilized in their bids. Even if our responsive bids are successful, the bids may be based upon assumptions or other factors which could result in the contracts being less profitable than we had anticipated. Further, our government contracts contain certain provisions regarding readiness review, eligibility, enrollment and dis-enrollment processes for covered services, eligible providers, periodic financial and informational reporting, financial standards, quality assurance, timeliness of claims payment, compliance with contract terms and law and our agreement to maintain a Medicare plan in the state, among other things, and are subject to cancellation if we fail to perform in accordance with the standards set by regulatory agencies. For example, as a result of a Medicaid reprocurement process in California, in January 2024 our subsidiary, Health Net of California, began subcontracting a portion of its Medicaid membership in Los Angeles, which reduced our membership, compared to December 2023.

We are also subject to various reviews, audits and investigations, as well as self-reporting requirements, to verify our compliance with the terms of our contracts with various governmental agencies, as well as compliance with applicable laws and regulations. Any non-compliance with our government contracts or with applicable laws and regulations, adverse review, audit or investigation, could result in, among other things: cancellation of our contracts; refunding of amounts we have been paid pursuant to our contracts; imposition of fines, penalties and other sanctions on us; loss of our right to participate in various programs; increased difficulty in selling our products and services; loss or suspension of one or more of our licenses; lowered quality Star ratings; harm to our reputation; or required changes to the way we do business. For example, several states have made claims related to services previously provided by Envolve, which historically provided PBM and specialty pharmacy services, including among other things, (i) claims seeking payment for services already reimbursed, (ii) claims alleging the failure to accurately disclose the true cost of the PBM services and (iii) claims alleging inflation of dispensing fees for prescription drugs. For additional information, see Note 17. Contingencies to the consolidated financial statements included in Part II of this Annual Report on Form 10-K. Additional claims, reviews or investigations may still be brought by other states, the federal government or shareholder litigants, and there is no guarantee we will have the ability to settle such claims with other states within the reserve estimate we have recorded and on other acceptable terms, or at all. In addition, under government procurement regulations and practices, a negative determination resulting from a government audit of our business practices could result in a contractor being fined, debarred and/or suspended from being able to bid on, or be awarded, new government contracts for a period of time.

If any of our government contracts are terminated, not renewed, renewed on less favorable terms, or not renewed on a timely basis, or if we receive an adverse finding or review resulting from an audit or investigation, our business and reputation may be adversely impacted, our goodwill could be impaired and our results of operations, financial condition or cash flows may be materially adversely affected.

In addition, we contract with independent third-party vendors, brokers and service providers who provide services to us and our subsidiaries or to whom we delegate selected functions. Violations of, or noncompliance with, laws and regulations governing our business by such third parties, or governing our dealings with such parties, could, among other things, subject us to additional audits, reviews, investigations, self-reporting requirements and other adverse effects.

We derive a portion of our cash flow and gross margin from our PDP operations, for which we submit annual bids for participation. The results of our bids could have a material adverse effect on ourresults of operations, financial condition and cash flows.

A significant portion of our PDP membership is obtained from the auto-assignment of beneficiaries in CMS-designated regions where our PDP premium bids are below benchmarks of other plans' bids. In general, our premium bids are based on assumptions regarding PDP membership, utilization, drug costs, drug rebates and other factors for each region. Our 2024 PDP bids resulted in 30 of the 34 CMS regions in which we were below the benchmarks and 4 regions in which we were within the de minimis range, largely consistent with our 2023 PDP bids. As of January 1, 2024, we experienced an increase of 1.7 million PDP members compared to December 2023, due to our 2024 bid positioning. If our future Part D premium bids are not below the CMS benchmarks, we risk losing PDP members who were previously assigned to us and we may not have additional PDP members auto-assigned to us, which could materially reduce our revenue.

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The Inflation Reduction Act (IRA) is expected to substantially increase PDP's risk exposure in 2025. Under IRA, PDP plan costs will increase significantly due to a reduction in members cost share (close of coverage gap, and the $2,000 cap on member out of pocket expenses) and a decrease in federal reinsurance (from 80% to 20%, while a greater portion of the plan drug costs will fall into the catastrophic phase). In the meantime, Part D risk sharing program thresholds would be applied to the increased Part D plan costs, so the plan cost at risk will be much greater before any risk sharing kicks in. These changes may lead to heightened underwriting risks and increased market volatility and uncertainty for 2025 bids, which could materially reduce our revenue and profit.

Our encounter data may be inaccurate or incomplete, which could have a material adverse effect on our results of operations, financial condition and cash flows and ability to bid for, and continue to participate in, certain programs.

Our contracts require the submission of complete and correct encounter data. The accurate and timely reporting of encounter data is increasingly important to the success of our programs because more states are using encounter data to determine compliance with performance standards and to set premium rates. We have expended and may continue to expend additional effort and incur significant additional costs to collect or correct inaccurate or incomplete encounter data from our existing health plans and any health plans we may acquire in the future and have been and continue to be, exposed to operating sanctions and financial fines and penalties for noncompliance. In some instances, our government clients have established retroactive requirements for the encounter data we must submit. There also may be periods of time in which we are unable to meet existing requirements. In either case, it may be prohibitively expensive or impossible for us to collect or reconstruct this historical data.

We may experience challenges in obtaining complete and accurate encounter data, due to difficulties with providers and third-party vendors submitting claims in a timely fashion in the proper format, and with state agencies in coordinating such submissions. As states increase their reliance on encounter data, these difficulties could adversely affect the premium rates we receive and how membership is assigned to us and subject us to financial penalties, which could have a material adverse effect on our results of operations, financial condition cash flows and our ability to bid for, and continue to participate in, certain programs.

Increases in our pharmaceutical costs could have a material adverse effect on the level of our medical costs and our results of operations.

Introduction of new high-cost specialty drugs and sudden cost spikes for existing drugs increase the risk that the pharmacy cost assumptions used to develop our capitation rates are not adequate to cover the actual pharmacy costs, which jeopardizes the overall actuarial soundness of our rates. Bearing the high costs of new specialty drugs or the high-cost inflation of drugs without an appropriate rate adjustment or other reimbursement mechanism could have an adverse impact on our financial condition and results of operations. In addition, evolving regulations and state and federal mandates regarding coverage may impact the ability of our health plans to continue to receive existing price discounts on pharmaceutical products for our members. Other factors affecting our pharmaceutical costs include, but are not limited to, geographic variation in utilization of new and existing pharmaceuticals, changes in discounts, civil investigations and litigation. Although we will continue to work with state Medicaid agencies in an effort to ensure that we receive appropriate and actuarially sound reimbursement for all new drug therapies and pharmaceuticals trends, there can be no assurance that we will be successful in that regard.

Ineffectiveness of state-operated systems and subcontractors could adversely affect our business.

A number of our health plans rely on other state-operated systems or subcontractors to qualify, solicit, educate and assign eligible members into managed care plans. The effectiveness of these state operations and subcontractors can have a material effect on a health plan's enrollment in a particular month or over an extended period. When a state implements either new programs to determine eligibility or new processes to assign or enroll eligible members into health plans, or when it chooses new subcontractors, or has not adequately maintained systems, there is an increased potential for an unanticipated impact on the overall number of members assigned to managed care plans.

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Additionally, we rely on the accuracy of eligibility lists provided by state governments and their vendors. Inaccuracies in those lists would negatively affect our results of operations. Premium payments to our health plans are based upon eligibility lists produced by state governments and their vendors. From time to time, states require us to reimburse them for premiums paid to us based on an eligibility list that a state later discovers contains individuals who are not in fact eligible for a government sponsored program or are eligible for a different premium category or a different program. Our results of operations would be adversely affected as a result of such reimbursement to the state if we make or have made related payments to providers and are unable to recoup such payments from the providers. Alternatively, a state could fail to pay us for members for whom we are entitled to payment. Such factors could have an adverse effect on our premium revenues and results of operations, financial condition and cash flows.

If state regulators do not approve payments of dividends and distributions by our subsidiaries to us, we may not have sufficient funds to implement our business strategy.

We principally operate through our health plan subsidiaries. As part of normal operations, we may make requests for dividends and distributions from our subsidiaries to fund our operations. In addition to state corporate law limitations, these subsidiaries are subject to more stringent state insurance and HMO laws and regulations that limit the amount of dividends and distributions that can be paid to us without prior approval of, or notification to, state regulators. If these regulators were to deny or delay our subsidiaries' requests to pay dividends, the funds available to us would be limited, which could harm our ability to implement our business strategy.

We derive a significant portion of our premium revenues from operations in a number of states, and our results of operations, financial condition or cash flows could be materially adversely affected by a decrease in premium revenues or profitability in any one of those states.

Operations in a number of states have accounted for a significant portion of our premium revenues to date. If we were unable to continue to operate in any of those states or if our current operations in any portion of one of those states were significantly curtailed, our revenues could decrease materially. For example, as part of the normal course of business, several of our Medicaid contracts are up for reprocurement in 2024 (for contracts largely commencing in 2025), including but not limited to Florida, Georgia, a portion of our business in Texas and Michigan. Our reliance on operations in a limited number of states could cause our revenues and profitability to change suddenly and unexpectedly depending on legislative or other governmental or regulatory actions and decisions or changes in governmental administrations, economic conditions and similar factors in those states. Government entities in states we currently serve could open the bidding for their Medicaid or other healthcare programs to other health insurers through a request for proposal process. For example, as a result of Medicaid reprocurement process in California, in January 2024 our subsidiary, Health Net of California, began subcontracting a portion of its Medicaid membership in Los Angeles, which reduced our membership compared to December 2023. Reductions in our service area or services provided in any of the states in which we operate could harm our business.

Competition may limit our ability to increase penetration of the markets that we serve.

We compete for members principally on the basis of size and quality of provider networks, the design and cost of benefits provided and quality of service. We compete with numerous types of competitors, including other health plans and traditional state Medicaid programs that reimburse providers as care is provided, as well as other non-traditional competitors. In addition, the administration of the ACA has the potential to shift the competitive landscape in our segment.

Some of the health plans with which we compete have greater financial and other resources and offer a broader scope of products than we do. In addition, significant merger and acquisition activity continues to occur in the managed care industry, as well as complementary industries, such as the hospital, physician, pharmaceutical, medical device and health information systems businesses. To the extent that competition intensifies in any market that we serve, as a result of industry consolidation or otherwise, our ability to retain or increase members and providers, or maintain or increase our revenue growth, pricing flexibility and control over medical cost trends may be adversely affected.

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We operate in a highly competitive, dynamic and rapidly evolving industry and our failure to adapt could negatively impact our business.

The health service industry continues to be competitive, dynamic and rapidly evolving. Any significant shifts in the structure of the industry could alter industry dynamics and adversely affect our ability to compete, attract or retain clients and customers. Industry shifts could result (and have resulted) from, among other things:

•a large intra- or inter-industry merger or industry consolidation;

•strategic alliances;

•change in broker distribution channels and requirements;

•continuing consolidation among physicians, hospitals and other health care providers, as well as changes in the organizational structures chosen by physicians, hospitals and health care providers; and

•new market entrants, including those not traditionally in the health service industry.

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.

If our vendors fail to meet their contractual obligations to us or fail to comply with applicable laws or regulations, our results of operations may be adversely affected and we may be exposed to brand and reputational harm, litigation and/or regulatory action.

We are subject to risks associated with outsourcing services and functions to third parties. We contract with various vendors to perform certain functions and services, including for PBM, medical management and other member-related services. Our arrangements with these third parties may expose us to public scrutiny, adversely affect our brand and reputation, expose us to litigation or regulatory action, and otherwise make our operations vulnerable if we fail to adequately oversee, monitor and regulate their performance or if they fail to meet their contractual obligations to us, including successfully and timely transitioning services, delivering expected cost savings, guarantees or commitments, increasing their service levels to us, or complying with applicable laws or regulations.

Any failure of these third parties' prevention, detection or control systems related to regulatory compliance, compliance with our internal policies, data security and/or cybersecurity or any incident involving the theft, misappropriation, loss or other unauthorized disclosure of, or access to, members' or other constituents' sensitive information could require us to expend significant resources to remediate any damage, interrupt our operations and adversely affect our brand and reputation and also expose us to whistleblower, class action and other litigation, other proceedings, prohibitions on marketing or active or passive enrollment of members, corrective actions, fines, sanctions and/or penalties, any of which could adversely affect our business results of operations, financial condition or cash flows. If the vendors cannot adequately perform services to us due to lack of adequate staffing, infrastructure, experience, operational maturity, funding, bankruptcy, insolvency, or other credit failure, it could have a material adverse effect on our results of operations if we are not able to contract with other service providers on a timely basis or at all.

If we are unable to maintain relationships with our provider networks, our profitability may be materially adversely affected.

Our profitability depends, in large part, upon our ability to contract at competitive prices with hospitals, physicians, and other healthcare providers. Our provider arrangements with our primary care physicians, specialists and hospitals generally may be canceled by either party without cause upon 90 to 120 days prior written notice. We cannot provide any assurance that we will be able to continue to renew our existing contracts or enter into new contracts on a timely basis or under favorable terms enabling us to service our members profitably. Healthcare providers with whom we contract may not properly manage the costs of, and access to services, be able to provide effective telehealth services, maintain financial solvency, pay secondary providers for services rendered (which could lead secondary providers to demand payment from us even though we have made our regular capitated payments to the provider group) or avoid disputes with other providers. Depending on state law and the regulatory environment, it may be necessary for us to pay such claims. Any of these events could have a material adverse effect on the provision of services to our members and our operations.

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In any particular market, physicians and other healthcare providers could refuse to contract, demand higher payments or take other actions that could result in higher medical costs or difficulty in meeting regulatory or accreditation requirements, among other things. In some markets, certain healthcare providers, particularly hospitals, physician/hospital organizations or multi-specialty physician groups, may have significant market positions or near monopolies that could result in diminished bargaining power on our part. In addition, accountable care organizations, practice management companies, which aggregate physician practices for administrative efficiency and marketing leverage and other organizational structures that physicians, hospitals and other healthcare providers choose may change the way in which these providers interact with us and may change the competitive landscape. Such organizations or groups of healthcare providers may compete directly with us, which could adversely affect our operations, and our results of operations, financial condition and cash flows by impacting our relationships with these providers or affecting the way that we price our products and estimate our costs, which might require us to incur costs to change our operations. Provider networks may consolidate or be acquired by our direct competitors, resulting in a reduction in the competitive environment or in our competitive position. In addition, if these providers refuse to contract with us, use their market position to negotiate contracts that are unfavorable to us, or place us at a competitive disadvantage, our ability to market products or to be profitable in those areas could be materially and adversely affected.

From time to time, healthcare providers assert or threaten to assert claims seeking to terminate non-cancelable agreements due to alleged actions or inactions by us. If we are unable to retain our current provider contract terms or enter into new provider contracts timely or on favorable terms, our profitability may be materially adversely affected. In addition, from time to time, we may be subject to class action or other lawsuits by healthcare providers with respect to claim payment procedures or similar matters. For example, our wholly owned subsidiary, Health Net Life Insurance Company (HNL), is and may continue to be subject to such disputes with respect to HNL's payment levels in connection with the processing of out-of-network provider reimbursement claims for the provision of certain substance abuse related services. In the event HNL receives an adverse finding in any related legal proceeding or from a regulator or is otherwise required to reimburse providers for these claims at rates that are higher than expected or for claims HNL otherwise believes are unallowable, our financial condition and results of operations may be materially adversely affected. In addition, regardless of whether any such lawsuits brought against us are successful or have merit, they will still be time-consuming and costly and could distract our management's attention. As a result, under such circumstances, we may incur significant expenses and may be unable to operate our business effectively.

If we or our third-party vendors are unable to integrate and manage information systems and networks effectively, our operations could be disrupted.

Our operations depend significantly on effective information systems and networks. The information gathered and processed by information systems and networks assists us in, among other things, monitoring utilization and other cost factors, processing provider claims and providing data to our regulators. Our healthcare providers also depend upon our information systems and networks for membership verifications, claims status and other information. Our information systems, networks and applications require continual maintenance, upgrading and enhancement to meet our operational needs and regulatory requirements. We regularly upgrade and expand our information systems' and networks' capabilities. If we, our healthcare providers, brokers' or our third-party vendors experience difficulties with the transition to or from information systems or networks or do not appropriately integrate, maintain, enhance or expand information systems or networks, we could suffer, among other things, operational disruptions, loss of existing members and providers and difficulty in attracting new members and providers, complaints, regulatory problems and increases in administrative expenses. In addition, our, our healthcare providers', our brokers' or our third-party vendors' ability to integrate and manage information systems and networks may be impaired as the result of events outside our control, including natural disasters, such as earthquakes or fires, or acts of wars, aggression or terrorism, which may include cyber-attacks or other data security incidents by terrorists or other governmental or non-governmental actors. We may from time to time obtain significant portions of our systems-related or other services or facilities from independent third parties, which may make our operations vulnerable if such third parties fail to perform adequately. In addition, our ability to use outsourcing resources in certain jurisdictions might be limited by legislative action or contracts, with the result that the work must be performed at greater expense or we may be subject to sanctions for non-compliance. Any of these risks might have a materially adverse impact on our business, results of operations and financial condition.

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A failure in or breach of our operational or security systems, networks or infrastructure, or those of third parties with which we do business, including as a result of cyber-attacks and other data security incidents, could have a material adverse effect on our business.

Data security risks have significantly increased in recent years in part because of the proliferation of new technologies, the use of the internet and telecommunications technologies to conduct our operations and the increased sophistication and activities of organized crime, hackers, terrorists and other external parties, including foreign states and state-supported actors. Data security risks also may derive from fraud or malice on the part of our team members or third parties, or may result from human error, software bugs, server malfunctions, software or hardware failure or other technological failure. As these threats continually evolve, we may be required to devote substantial additional resources to modify or enhance our operational or security systems and networks and our cybersecurity program.

Our operations rely on the secure transmission, storage and other processing of confidential, personal, proprietary, sensitive and other information in our computer systems and networks as well as those of third parties with which we do business.

Security breaches of such systems and networks may arise from external or internal threats. External breaches may result from, among other things, a threat actor hacking personal information for financial gain, attempting to cause harm or interruption to our operations or intending to obtain competitive information. Internal breaches may result from, among other things, inappropriate security access to confidential information by rogue team members, consultants or third-party service providers. Any security breach could result in the misappropriation, loss or other unauthorized access, disclosure or use of confidential member information, including personal information, financial data, competitively sensitive information or other proprietary data, whether by us or a third party, and could have a material adverse effect on our business reputation, financial condition, cash flows or results of operations.

We maintain a system of prevention and detection controls through our security programs; however, our prevention and detection controls may not prevent or identify all such attacks on a timely basis, or at all. Despite our best attempts to maintain adherence to data privacy and security best practices, as well as compliance with applicable laws, regulations, rules, standards and contractual requirements, our facilities, systems and networks, and those of our third-party service providers, may be vulnerable to data privacy or security breaches, acts of vandalism or theft, malware, ransomware, social engineering attacks (including phishing attacks), denial-of-service attacks or other forms of cyber-attack, misplaced or lost data including paper or electronic media, programming and/or human errors or other similar events. We experience attempted external hacking or malicious attacks on a regular basis. In the past, we have had data breaches resulting in disclosure of confidential or protected health information that have not resulted in any material financial loss or penalty to date. For example, in 2021, we learned that Accellion, a third-party data transfer provider with whom we contract, had a system vulnerability that resulted in unauthorized access to certain sensitive data of our customers, including protected health information, as well as unauthorized access to the data of several of Accellion's other clients. This incident led to putative class action lawsuits that were filed against us and our subsidiaries, Health Net, LLC, Health Net of California, Inc., HNL, Health Net Community Solutions, Inc., and California Health & Wellness, and Accellion on behalf of the affected customers. There can be no assurance that this incident and other privacy or security breaches will not require us to expend significant resources to remediate any damage, interrupt our operations and damage our business or reputation, subject us to state, federal, or international agency review, and result in enforcement actions, material fines and penalties, litigation or other actions which could have a material adverse effect on our business, reputation, results of operations, financial condition and cash flows.

While we generally perform data security due diligence on our key service providers, we do not control our service providers and our ability to monitor their data security practices is limited. Some of our vendors may store or have access to our data and may not have effective controls, processes, or practices to protect our information from loss, unauthorized disclosure, unauthorized use or misappropriation, cyber-attacks or other data security incidents. A vulnerability in our service providers' software or systems, a failure of our service providers' safeguards, policies or procedures, or a cyber-attack or other data security incident affecting any of these third parties could harm our business. Additionally, we cannot be certain that our insurance coverage will be adequate for data security liabilities actually incurred, that insurance will continue to be available to us on economically reasonable terms, or at all, or that our insurer will not deny coverage as to any future claim.

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We may be unable to attract, retain or effectively manage the succession of key personnel.

We are highly dependent on our ability to attract, develop and retain qualified personnel to operate and expand our business. We face intense competition for experienced and highly skilled team members, and we may be unable to attract and retain such team members, or competition among potential employers may result in increasing compensation. In addition, we may be adversely impacted if we are unable to adequately plan for the succession of our executives and senior management. While we have succession plans in place for members of our executive and senior management team, these plans do not guarantee that the services of our executive and senior management team will continue to be available to us. Our ability to replace any departed members of our executive and senior management team or other key team members may be difficult and may take an extended period of time because of the limited number of individuals in the Managed Care industry with the breadth of skills and experience required to operate and successfully expand a business such as ours. Competition to hire from this limited pool is intense, and we may be unable to hire, train, retain or motivate these personnel. Further, the increased availability of hybrid or remote working arrangements has expanded the pool of companies that can compete for our team members and employment candidates. Our recently adopted modern work environment, including remote and hybrid work arrangements which is utilized by the majority of our team members, may present operational, cybersecurity and workplace culture challenges. If we are unable to attract, retain and effectively manage the succession plans for key personnel, executives and senior management, our business and financial condition, results of operations or cash flows could be harmed.

An impairment charge with respect to our recorded goodwill, intangible assets and real estate portfolio could have a material impact on our results of operations and shareholders' equity.

Changes in business strategy, divestitures, government regulations or economic or market conditions and non-renewal of government contracts have resulted and may result in impairments of our real estate portfolio, goodwill and other intangible assets at any time in the future. We have recorded a total of $529 million in impairment charges during the year ended December 31, 2023, which were largely attributed to recent divestitures. For additional information, see Note 7. Goodwill and Intangible Assets to the consolidated financial statements included in Part II of this Annual Report on Form 10-K. We may have additional impairment charges in connection with our periodic evaluation of our goodwill and intangible assets using assumptions and judgments regarding the estimated fair value of our reporting units. Our assumptions and judgments regarding the existence of impairment indicators are based on, among other things, legal factors, contract terms, market conditions and operational performance. Further, the estimated value of our reporting units may be impacted because of business decisions we make associated with any future changes to laws and regulations, which could unfavorably affect the carrying value of certain goodwill and other intangible assets and result in impairment charges in future periods. If an event or events occur that would cause us to revise our estimates and assumptions used in analyzing the value of our goodwill and other intangible assets, such revision could result in a non-cash impairment charge that could have a material impact on our results of operations and shareholders' equity in the period in which the impairment occurs.

Risks Relating to Regulatory and Legal Matters

Reductions in funding, changes to eligibility requirements for government-sponsored healthcare programs in which we participate, and any inability on our part to effectively adapt to changes to these programs could have a material adverse effect on our results of operations, financial condition and cash flows.