Cautionary Statement on Forward-Looking Statements All statements, other than statements of current or historical fact, contained in this communication are forward-looking statements. 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. Without limiting the foregoing, forward-looking statements often use words such as and other similar words or expressions (and the negative thereof). In particular, these statements include,
without limitation, statements about future operating or financial performance, market opportunity, growth strategy, competition, expected activities in completed and future acquisitions (including statements about the impact of the proposed
acquisition of WellCare Health Plans, Inc., referred to as WellCare, by Centene, which is referred to as the WellCare Transaction, recent acquisition, which is referred to as the Fidelis Care Acquisition, of substantially all the assets of New York
State Catholic Health Plan, Inc., d/b/a Fidelis Care New York, which is referred to as Fidelis Care, and investments and the adequacy of available cash resources. These forward-looking statements reflect current views with respect to future events
and are based on numerous assumptions and assessments made by Centene, in light of experience and perception of historical trends, current conditions, business strategies, operating environments, future developments and other factors Centene
believes 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 or its 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 communication are based on
information available to Centene on the date of this communication. Except as may be otherwise required by law, Centene undertakes no obligation, and expressly disclaims, any obligation to update or revise the forward-looking statements included in
this communication, whether as a result of new information, future events or otherwise, after the date of this communication. 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: the risk that regulatory or other approvals required for the WellCare Transaction may be delayed
or not obtained or are obtained subject to conditions that are not anticipated that could require the exertion of time and resources or otherwise have an adverse effect on Centene; the possibility that certain conditions to the consummation of the
WellCare Transaction will not be satisfied or completed on a timely basis and, accordingly, the WellCare Transaction may not be consummated on a timely basis or at all; uncertainty as to the expected financial performance of the combined company
following completion of the WellCare Transaction; the possibility that the expected synergies and value creation from the WellCare Transaction will not be realized, or will not be realized within the expected time period; the exertion of time and
resources, and other expenses incurred and business changes required, in connection with any regulatory, governmental or third party consents or approvals for the WellCare Transaction; the risk that unexpected costs will be incurred in connection
with the completion and/or integration of the WellCare Transaction or that the integration of WellCare will be more difficult or time consuming than expected; the risk that potential litigation in connection with the WellCare Transaction may affect
the timing or occurrence of the WellCare Transaction, cause it not to close at all, or result in significant costs of defense, indemnification and liability; unexpected costs, charges or expenses resulting from the WellCare Transaction; the
possibility that competing offers will be made to acquire WellCare; the inability to retain key personnel; disruption from the announcement, pendency and/or completion of the WellCare Transaction, including potential adverse reactions or changes to
business relationships with customers, employees, suppliers or regulators, making it more difficult to maintain business and operational relationships; the risk that, following the WellCare Transaction, the combined company may not be able to
effectively manage its expanded operations; ability to accurately predict and effectively manage health benefits and other operating expenses and reserves; competition; membership and revenue declines or unexpected trends; changes in healthcare
practices, new technologies, and advances in medicine; increased healthcare costs; changes in economic, political or market conditions; 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 Affordable Care Act (ACA) and any
regulations enacted thereunder that may result from changing political conditions or judicial actions, including the ultimate outcome of the District Court decision in v. United States of regarding the constitutionality of the ACA; rate cuts or
other payment reductions or delays by governmental payors and other risks and uncertainties affecting government businesses; ability to adequately price products on federally facilitated and state-based Health Insurance Marketplaces; tax matters;
disasters or major epidemics; the outcome of legal and regulatory proceedings; changes in expected contract start dates; provider, state, federal and other contract changes and timing of regulatory approval of contracts; the expiration, suspension,
or termination of contracts with federal or state governments (including but not limited to Medicaid, Medicare, TRICARE or other customers); the difficulty of predicting the timing or outcome of pending or future litigation or government
investigations; challenges to contract awards; cyber-attacks or other privacy or data security incidents; the possibility that the expected synergies and value creation from acquired businesses, including, without limitation, the Fidelis Care
Acquisition, will not be realized, or will not be realized within the expected time period; the exertion of time and resources, and other expenses incurred and business changes required in connection with complying with the undertakings in
connection with any regulatory, governmental or third party consents or approvals for acquisitions; disruption caused by significant completed and pending acquisitions, including, among others, the Fidelis Care Acquisition, making it more difficult
to maintain business and operational relationships; the risk that unexpected costs will be incurred in connection with the completion and/or integration of acquisition transactions; changes in expected closing dates, estimated purchase price and
accretion for acquisitions; the risk that acquired businesses, including Fidelis Care, will not be integrated successfully; the risk that Centene may not be able to effectively manage its operations as they have expanded as a result of the Fidelis
Care Acquisition; restrictions and limitations in connection with indebtedness; ability to maintain or achieve improvement in the Centers for Medicare and Medicaid Services star ratings and maintain or achieve improvement in other quality scores in
each case that can impact revenue and future growth; availability of debt and equity financing, on terms that are favorable to Centene; inflation; foreign currency fluctuations; and the risk that the unaudited pro forma condensed combined financial
information included or incorporated by reference in this communication may not be reflective of the operating results and financial condition of the combined company following the completion of the WellCare Transaction. This list of important
factors is not intended to be exhaustive. Centene discusses certain of these matters more fully, as well as certain other factors that may affect business operations, financial condition and results of operations, in filings with the Securities and
Exchange Commission (SEC), including Annual Report on Form 10-K, Quarterly Reports on Form 10- Q and Current Reports on Form 8-K. Due to these important factors and risks, Centene cannot give assurances with respect to future performance,
including, without limitation, ability to maintain adequate premium levels or ability to control its future medical and selling, general and administrative costs. We expressly qualify in their entirety all forward-looking statements attributable to
us or any person acting on our behalf, as applicable, by the cautionary statements contained or referred to in this communication. 2020 FINANCIAL GUIDANCE 3
