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Unum Group

For the period ended Dec 31, 2024. Filed Feb 27, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Feb 27, 2025

UNM$81.24+1.3%Stored close · as of Nov 10, 2026

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Contents

Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Unum Group

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Unum Group and Subsidiaries (the Company) as of December 31, 2024 and 2023, the related consolidated statements of income, comprehensive income, stockholders' equity and cash flows for each of the three years in the period ended December 31, 2024, and the related notes and financial statement schedules listed in the Index at Item 15(a)(2) (collectively referred to as the "consolidated financial statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 27, 2025 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Long-Term Care Liability for Future Policy Benefits
Description of the MatterThe Company's liability for individual and group long-term care future policy benefits is $15.3 billion of the $36.8 billion of Future Policy Benefits on the consolidated balance sheet as of December 31, 2024.
The liability for future policy benefits related to long-term care insurance contracts is based on estimates of how much the Company will need to pay for future benefits and the amount of premiums to be collected from policyholders for these policy features. As described in Note 1 and Note 6 to the consolidated financial statements, there is significant uncertainty in estimating this liability given the extended period over which claims are paid and sensitivity of the estimate to assumptions, including morbidity, mortality, claims incidence and resolutions, active policy lapses, and future premium rate increases.
Auditing the long-term care liability for future policy benefits was complex due to the highly judgmental nature of the significant assumptions, including morbidity, mortality, claims incidence and resolutions, active policy lapses, and future premium rate increases, used in the measurement process. The significant judgment and the sensitivity of the estimate to these assumptions can have a material effect on the valuation of the liability.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design and tested the operating effectiveness of the Company’s internal controls over the long-term care liability for future benefits process, including controls over the review and approval of assumptions which incorporate the Company’s most recent experience.
To test the long-term care liability for future policy benefits we performed audit procedures, with the assistance of our actuarial specialists, that included, among others, an evaluation of the methodologies applied by management’s actuarial specialists with those methods used in prior periods. We evaluated the significant assumptions used by management in determining the liability for future policy benefits by comparing the significant assumptions, including expected morbidity, mortality, claims incidence and resolutions, active policy lapses, and future premium rate increases to historical assumptions, prior actual experience, policyholder experience studies performed by management, available industry information, or management’s estimates of prospective changes in these assumptions. In addition, we performed a review of the historical results of the development of the estimate, assessed management’s annual reserve assumption study, and performed an independent recalculation of the liability for future policy benefits for a sample of contracts which we compared to the actuarial model used by management.

/s/Ernst & Young LLP

We have served as the Company’s auditor since 1999.

Chattanooga, Tennessee

February 27, 2025

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