Unum Group

Appendix to Statistical Supplement

2024 Significant Items:

•Third quarter of 2024 reserve assumption updates resulting in a net reserve decrease of $357.4 million before tax, or $282.6 million after tax.

•During the third quarter of 2024, we incurred a loss of $15.3 million before tax, or $12.1 million after tax, for the settlement of an employment-related matter.

2023 Significant Items:

•Third quarter of 2023 reserve assumption updates resulting in a net reserve increase of $177.2 million before tax, or $139.3 million after tax.

•In 2018, the Financial Accounting Standards Board issued ASU 2018-12, “Targeted Improvements to the Accounting for Long-Duration Contracts”. This update significantly amended the accounting and disclosure requirements for long-duration insurance contracts. The update was effective for periods beginning January 1, 2023. We adopted this guidance effective January 1, 2023 using the modified retrospective approach with changes applied as of January 1, 2021, also referred to as the transition date.

2022 Significant Items

•Third quarter of 2022 reserve assumption updates resulting in a net reserve reduction of $243.3 million before tax, or $192.1 million after tax.

Appendix to Statistical Supplement - Continued

Non-GAAP Financial Measures

We analyze our performance using non-GAAP financial measures which exclude or include amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with GAAP. We believe the following non-GAAP financial measures are better performance measures and better indicators of the revenue and profitability and underlying trends in our business:

•Consolidated adjusted operating revenue, which excludes investment gains or losses;

•After-tax adjusted operating income or loss, which excludes investment gains or losses, amortization of the cost of reinsurance, non-contemporaneous reinsurance, and reserve assumption updates, as well as certain other items, as applicable;

•Adjusted operating return on equity, which is calculated using after-tax adjusted operating income or loss and excludes from equity the unrealized gain or loss on securities, the effect of change in discount rate assumptions on the liability for future policy benefits, and net gain or loss on derivatives;

•Leverage ratio, which excludes the unrealized gain or loss on securities, the effect of change in discount rate assumptions on the liability for future policy benefits, and net gain or loss on derivatives; and

•Book value per common share, which is calculated excluding accumulated other comprehensive income (loss) (AOCI).

Investment gains or losses primarily include realized investment gains or losses, expected investment credit losses, and gains or losses on derivatives. Investment gains or losses and unrealized gains or losses on securities depend on market conditions and do not necessarily relate to decisions regarding the underlying business of our Company. Leverage ratio and book value per common share excluding certain components of AOCI, certain of which tend to fluctuate depending on market conditions and general economic trends, are important measures.

Cash flow assumptions used to calculate our liability for future policy benefits are reviewed at least annually and updated, as needed, with the resulting impact reflected in net income. While the effects of these assumption updates are recorded in the reporting period in which the review is completed, these updates reflect experience emergence and changes to expectations spanning multiple periods. We believe that by excluding the impact of reserve assumption updates we are providing a more comparable and consistent view of our quarterly results.

We exited a substantial portion of our Closed Block individual disability product line through the two phases of the reinsurance transaction that were executed in December 2020 and March 2021. As a result, we exclude the amortization of the cost of reinsurance that we recognized upon the exit of the business related to the policies on claim status as well as the impact of non-contemporaneous reinsurance that resulted from the adoption of ASU 2018-12. Due to the execution of the second phase of the reinsurance transaction occurring after January 1, 2021, the transition date of ASU 2018-12, in accordance with the provisions of the ASU related to non-contemporaneous reinsurance, we were required to establish the ceded reserves using an upper-medium grade fixed-income instrument as of the reinsurance transaction date in March 2021 which resulted in higher ceded reserves compared to that which was reported historically. However, the direct reserves for the block reinsured in the second phase were calculated using the original discount rate utilized as of the transition date. Both the direct and ceded reserves are then remeasured at each reporting period using a current discount rate reflective of an upper-medium grade fixed-income instrument, with the changes recognized in other comprehensive income (loss). While the total equity impact is neutral, the different original discount rates utilized for direct and ceded reserves result in disproportionate earnings impacts. The impact of non-contemporaneous reinsurance will fluctuate depending on the magnitude of reserve changes during the period. We believe that the exclusion of these items provides a better view of our results from our ongoing businesses.

15.1

Appendix to Statistical Supplement - Continued

We may at other times exclude certain other items from our discussion of financial ratios and metrics in order to enhance the understanding and comparability of our operational performance and the underlying fundamentals, but this exclusion is not an indication that similar items may not recur and does not replace net income or net loss as a measure of our overall profitability.

For a reconciliation of the most directly comparable GAAP measures to these non-GAAP financial measures, refer to the "Reconciliation of Non-GAAP Financial Measures" beginning on page 15.3, other than book value per common share, which is presented on page 2.

15.2

Reconciliation of Non-GAAP Financial Measures

15.3

1 Excludes unrealized gain (loss) on securities, the effect of change in discount rate assumptions on the liability for future policy benefits, and net gain (loss) on derivatives and is calculated using the stockholders' equity balances presented on page 15.7.

15.4

1 Excludes unrealized gain (loss) on securities, the effect of change in discount rate assumptions on the liability for future policy benefits, and net gain (loss) on derivatives and is calculated using the stockholders' equity balances presented on page 15.7.

15.5

1 Excludes unrealized gain (loss) on securities, the effect of change in discount rate assumptions on the liability for future policy benefits, and net gain (loss) on derivatives and is calculated using the stockholders' equity balances presented on page 15.7.

15.6

Average allocated equity is computed as follows:

15.7

*Assuming Dilution.

15.8

*Assuming Dilution.

15.9

15.10

1 Premium income shown in millions of pounds for Unum UK, millions of zlotys for Unum Poland, and millions of U.S. dollars for Unum US and Colonial Life.

2 Exchange rate is calculated using the average foreign currency exchange rates for the most recent period, applied to the comparable prior period.

15.11