Introduction

Unum Group, a Delaware general business corporation, and its insurance and non-insurance subsidiaries, which collectively with Unum Group we refer to as the Company, operate in the United States, the United Kingdom, and, to a limited extent, in certain other countries around the world. The principal operating subsidiaries in the United States are Unum Life Insurance Company of America (Unum America), Provident Life and Accident Insurance Company (Provident), The Paul Revere Life Insurance Company (Paul Revere Life), and Colonial Life & Accident Insurance Company, and in the United Kingdom, Unum Limited. We are the largest provider of disability insurance products in the United States and the United Kingdom. We also provide a complementary portfolio of other insurance products, including long-term care insurance, life insurance, employer- and employee-paid group benefits, and other related services.

We have three major business segments: Unum US, Unum UK, and Colonial Life. Our other segments are the Individual Disability - Closed Block segment and the Corporate and Other segment. These segments are discussed more fully under "Segment Results" contained in this Item 2.

As one of the leading providers of employee benefits, we offer a broad portfolio of products and services to meet the diverse needs of the marketplace. We try to achieve a competitive advantage by offering group, individual, and voluntary benefits products that can be offered as stand alone products or that can be combined with other coverages to provide comprehensive benefits solutions for customers. We offer competitive benefit plans to businesses of all sizes to help them attract and retain a stronger workforce and protect the incomes and lifestyles of employees and their families. Through a variety of technological tools and trained professionals, we offer services which are designed to meet the evolving needs of our customers. We strive to provide the highest level of service excellence.

We believe that we are a well positioned and competitive force in our sector. However, due to the nature of our business, we are sensitive to economic and financial market movements, including consumer confidence, employment levels, and the level of interest rates. Our business outlook recognizes both the challenges of the current economic environment as well as the mitigating impact of risk-reducing actions we have taken in recent years. Our outlook is responsive to our risk management framework and is consistent with our risk appetite. Although occurrence of one or more of the risk factors discussed in our 2008 annual report on Form 10-K may cause our results to differ from our outlook, we believe that our business outlook is built on sound operating plans that have been tested against many of the challenges presented by the current economic environment.

This discussion and analysis should be read in conjunction with the consolidated financial statements and notes thereto in Part I, Item 1 contained in this Form 10-Q and with the discussion, analysis, and consolidated financial statements and notes thereto in Part I, Items 1 and 1A, and Part II, Items 6, 7, 7A, and 8 of our annual report on Form 10-K for the year ended December 31, 2008.

Executive Summary

We believe we have successfully developed an overall risk management structure that focuses on risk at all levels of our organization. Through our operational risk strategy, we are focused on delivering the highest quality customer experience and continuous improvement initiatives, which we believe will both reduce our future business volatility and strengthen our reputation. Through our insurance risk strategy, we have maintained our emphasis on pricing our business for profitable growth, and we have improved our risk profile through the development of a more balanced business mix across our product lines and the markets we serve. Through our investment risk strategy, we have managed our claim reserve discount rates relative to investment portfolio yield rates, reduced our exposure to high risk securities holdings, and avoided certain asset class problems. Through the implementation of our capital management risk strategy, we have strengthened our balance sheet and maintained financial flexibility which we believe will support our operations over various economic cycles. Collectively, these efforts will help us manage operational, insurance, and investment risk across our enterprise.

During 2009, we intend to continue our focus on a number of key areas. Objectives for 2009 include:

• Consistent execution of our operating plans. We will continue our emphasis on disciplined, profitable growth.

• Maintain a strong investment portfolio. We will maintain disciplined credit analysis in our selection of investment assets and continue to be conservative within our investment risk tolerances.

• Build and effectively use capital. We intend to continue to build capital and manage it effectively within our stated capital management strategy objectives.

• Professional development of our employees. We will continue our focus on employee training and development as well as talent management.

A discussion of our operating performance, investments, and capital follows.

Operating Performance

During the first quarter of 2009, Unum US reported an increase in segment operating income of 16.0 percent compared to the prior year first quarter. The group disability benefit ratio was 88.0 percent for the first quarter of 2009 compared to 91.0 percent for the prior year first quarter, consistent with our goal of continual profit margin improvement for this line of business. Unum US sales increased 3.5 percent in the first quarter of 2009 compared to the same period last year. Sales increased 16.1 percent over the prior year first quarter in our group core market segment, which we define for Unum US as employee groups with less than 2,000 lives, and the number of new accounts increased 28.6 percent. Our supplemental and voluntary sales increased 4.0 percent in the first quarter of 2009 compared to last year's first quarter, with an 11.5 percent increase in voluntary sales offsetting a sales decline in the other supplemental and voluntary product lines. Sales in the group large case market segment decreased 16.0 percent compared to the prior year. New products and initiatives include significant technology investments in our underwriting and claim management systems; expansion of our Simply Unum platform and the next generation of products; an increase in our enrollment teams to build enrollment capacity; and investments in training, development, and expansion of our sales force.

Our Unum UK segment reported an increase in segment operating income of 1.6 percent for the first quarter of 2009, as measured in Unum UK's local currency, relative to the same period last year. Although before-tax operating margins were higher than the level of last year's first quarter, premium income declined due to a lower in-force block of group disability business from lower sales and persistency during 2008, affecting year over year operating income growth. Overall sales in Unum UK increased 44.7 percent in the first quarter of 2009 compared to the prior year first quarter, and group disability persistency improved over the level of last year's first quarter. New initiatives include the relaunch of our group life product and the development of new products intended to further expand the group market in the U.K.

Our Colonial Life segment reported an increase in segment operating income of 5.2 percent in the first quarter of 2009 compared to the same period prior year. Colonial Life's sales in this year's first quarter were consistent with the level of last year, with sales in the commercial market segment for employee groups with between 100 and 500 lives increasing 13.4 percent, offset by sales declines within the commercial market segment to employee groups with less than 100 lives and those with greater than 2,000 lives. Sales in the public sector market increased 9.5 percent due primarily to sales growth in the local government and educator markets. The number of new accounts and the average new case size both increased over the prior year. New initiatives include additional investments in tools and capabilities to support the Colonial Life brand position; development of a new enrollment system and platform; and investments in growing and expanding the sales force with particular focus on recruiting, training, and sales incentives.

Investments

Our investment strategy continues to serve as an important component of our overall business performance. We are focused on both the quality of our investment portfolio and on investing new money in investments appropriate for our liabilities and with yields that will increase our portfolio yield. The weighted average credit rating of our portfolio was A3 as of the end of the first quarter of 2009. Our net investment income in the first quarter of 2009 was 3.0 percent below the level of the prior year's first quarter due primarily to the weaker pound to dollar exchange

rate, lower income on bonds in Unum UK for which interest income is linked to an inflation index, and lower interest rates on floating rate assets. Included in the first quarter of 2009 results are net realized investment losses from sales and write-downs of investments related primarily to fixed maturity securities in the media and automotive sectors that we either sold or considered other than temporarily impaired. We believe our investment portfolio is well positioned for the current environment, with historically low levels of below-investment-grade securities, no exposure to subprime mortgages, "Alt-A" loans, or collateralized debt obligations in our asset-backed or mortgage-backed securities portfolios, and minimal exposure to collateralized debt obligations within our public bond portfolio. Further discussion is included in "Investments" contained in this Item 2.

Capital

The first priority of our capital management strategy is to maintain sufficient financial flexibility to support our operations over various economic cycles and to respond to opportunities in the marketplace while positioning our Company for improvements in its credit ratings. We have several financial targets, as specified in our 2008 annual report on Form 10-K, which we continue to use to guide our capital management decisions. These include targets for our risk-based capital, leverage, holding company cash and liquidity, and common stock dividend yield. At the end of the first quarter of 2009, all of our financial measurements for capital management continued to compare favorably to our target levels. See "Liquidity and Capital Resources" contained in this Item 2 for further detail.

First Quarter 2009 Significant Transactions and Events

Financing

During the first quarter of 2009, we made principal payments of $2.2 million and $2.5 million on our senior secured non-recourse variable rate notes issued by Northwind Holdings, LLC (Northwind Holdings) and Tailwind Holdings, LLC (Tailwind Holdings), respectively. We also purchased and retired $24.0 million of our 5.859% senior notes due May 2009.

Accounting Pronouncements

Effective January 1, 2009, we adopted the provisions of Statement of Financial Accounting Standards No. 161 (SFAS 161), Disclosures about Derivative Instruments and Hedging Activities, an amendment of FASB Statement No. 133. SFAS 161 is intended to improve financial reporting about derivative instruments and hedging activities by requiring enhanced disclosures to enable investors to better understand their effects on an entity's financial position, financial performance, and cash flows. The adoption of SFAS 161 amended our disclosures but had no effect on our financial position or results of operations.

FASB Staff Position No. FAS 107-1 and APB 28-1 (FSP FAS 107-1 and APB 28-1), Interim Disclosures about Fair Value of Financial Instruments, was issued April 9, 2009. This FSP relates to fair value disclosures for financial instruments. Prior to issuing this FSP, fair values for certain financial instruments were only disclosed annually. The FSP now requires these disclosures on a quarterly basis, providing both qualitative and quantitative information about fair values of financial instruments. The disclosures required by this FSP are required for interim reporting periods ending after June 15, 2009, with early adoption permitted for periods ending after March 15, 2009. We will adopt FSP FAS 107-1 and APB 28-1 effective April 1, 2009. The adoption will amend our disclosures but will have no effect on our financial position or results of operations.

FASB Staff Position No. FAS 157-4 (FSP FAS 157-4), Determining Fair Value When the Volume and Level of Activity for the Asset or Liability Have Significantly Decreased and Identifying Transactions That Are Not Orderly, was issued April 9, 2009. This FSP provides additional guidance for estimating fair value in accordance with Statement of Financial Accounting Standard No. 157, Fair Value Measurements, when there is no active market or where the price inputs being used represent distressed sales. This FSP also includes guidance on identifying circumstances that indicate a transaction is not orderly. The FSP is effective for interim reporting periods ending after June 15, 2009, with early adoption permitted for periods ending after March 15, 2009. We will adopt FSP FAS 157-4 effective April 1, 2009. The adoption of this FSP is not expected to have a material effect on our financial position or results of operations.

FASB Staff Position No. FAS 115-2 and FAS 124-2 (FSP FAS 115-2 and FAS 124-2), Recognition and Presentation of Other-Than-Temporary Impairments, was issued April 9, 2009. This FSP amends the other-than-temporary impairment guidance for debt securities and is intended to bring greater consistency to the timing of impairment recognition and provide greater clarity to investors about the credit and noncredit components of impaired debt securities that are not expected to be sold. The measure of impairment in comprehensive income remains fair value. The FSP expands and increases the frequency of existing disclosures about other-than-temporary impairments for debt and equity securities, requiring that certain annual disclosures be made for interim periods. This FSP also requires new disclosures concerning the significant inputs used in determining a credit loss, as well as a roll-forward of that amount each period. The FSP is effective for interim reporting periods ending after June 15, 2009, with early adoption permitted for periods ending after March 15, 2009. We will adopt FSP FAS 115-2 and FAS 124-2 effective April 1, 2009. We have not yet determined the effect of adoption on our financial position or results of operations.

FASB Staff Position No. FAS 132(R)-1, (FSP FAS 132(R)-1), Employers' Disclosures about Postretirement Benefit Plan Assets, was issued December 30, 2008. This FSP amends Statement of Financial Accounting Standards No. 132 (revised 2003), Employers' Disclosures about Pensions and Other Postretirement Benefits, to provide guidance on an employer's disclosures about plan assets of a defined benefit pension or other postretirement plan. The disclosures about plan assets required by this FSP are required for fiscal years ending after December 15, 2009. The adoption of FSP FAS 132(R)-1 will amend our disclosures but will have no effect on our financial position or results of operations.

First Quarter 2008 Significant Transactions and Events

Financing

During 2007, our board of directors authorized the repurchase of up to $700.0 million of Unum Group common stock. During January 2008, we repurchased approximately 14.0 million shares for $350.0 million, using an accelerated share repurchase agreement. A 30 percent partial acceleration of the agreement, 4.2 million shares, occurred on March 26, 2008 and settled on March 28, 2008, with the price adjustment resulting in the delivery to us of approximately 0.5 million additional shares of our common stock.

During the first quarter of 2008, we made principal payments of $15.0 million and $2.5 million on our senior secured non-recourse variable rate notes issued by Northwind Holdings and Tailwind Holdings, respectively.

Other

During the first quarter of 2008, we established a new non-insurance company, Unum Ireland Limited, which is an indirect wholly-owned subsidiary of Unum Group. The purpose of Unum Ireland Limited is to expand our information technology resource options to ensure that our resource capacity keeps pace with the growing demand for information technology support. This subsidiary, which is located in Carlow, Ireland, had approximately 40 full-time employees at the end of 2008.

Accounting Pronouncements

Effective January 1, 2008, we adopted the provisions of Statement of Financial Accounting Standards No. 157 (SFAS 157), Fair Value Measurements. SFAS 157 defines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. The adoption of SFAS 157 did not have a material effect on our financial position or results of operations.

Effective December 31, 2008, we adopted the provisions of Financial Accounting Standards Board (FASB) Staff Position No. EITF 99-20-1, (FSP EITF 99-20-1), Amendments to the Impairment Guidance of EITF Issue No. 99-20. This FSP amends the impairment guidance in Emerging Issues Task Force (EITF) Issue No. 99-20, Recognition of Interest Income and Impairment on Purchased Beneficial Interests and Beneficial Interests That Continue to Be Held by a Transferor in Securitized Financial Assets," to achieve more consistent determination of whether an other-than-temporary impairment has occurred. The FSP also retains and emphasizes the objective of an other-than-temporary impairment assessment and the related disclosure requirements in Statement of Financial Accounting

Standards No. 115, Accounting for Certain Investments in Debt and Equity Securities, and other related guidance. The adoption of FSP EITF 99-20-1 did not have a material effect on our financial position or results of operations.

Critical Accounting Estimates

We prepare our financial statements in accordance with GAAP. The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect amounts reported in our financial statements and accompanying notes. Estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed in our financial statements.

The accounting estimates deemed to be most critical to our results of operations and financial condition are those related to reserves for policy and contract benefits, deferred acquisition costs, valuation of investments, pension and postretirement benefit plans, and income taxes. There have been no significant changes in our critical accounting estimates during the first quarter of 2009.

For additional information concerning our accounting policies and critical accounting estimates, see Note 1 of the "Notes to Consolidated Financial Statements" in Part II, Item 8 and "Critical Accounting Estimates" in Part II, Item 7 of our annual report on Form 10-K for the year ended December 31, 2008.

Consolidated Operating Results



(in millions of dollars)
                                                              Three Months Ended March 31
                                                          2009         % Change         2008
Revenue
Premium Income                                          $ 1,872.8          (4.0 )%    $ 1,950.5
Net Investment Income                                       573.7          (3.0 )         591.4
Net Realized Investment Loss                                (64.6 )        (5.7 )         (68.5 )
Other Income                                                 67.0          (0.3 )          67.2

Total                                                     2,448.9          (3.6 )       2,540.6


Benefits and Expenses
Benefits and Change in Reserves for Future Benefits       1,575.7          (4.9 )       1,656.9
Commissions                                                 216.2          (1.2 )         218.9
Interest and Debt Expense                                    32.6         (25.7 )          43.9
Deferral of Acquisition Costs                              (153.6 )         5.5          (145.6 )
Amortization of Deferred Acquisition Costs                  131.8           1.4           130.0
Compensation Expense                                        190.1           2.3           185.9
Other Expenses                                              205.5          (0.2 )         205.9


Total                                                     2,198.3          (4.3 )       2,295.9


Income Before Income Tax                                    250.6           2.4           244.7
Income Tax                                                   85.7           5.0            81.6


Net Income                                              $   164.9           1.1       $   163.1

The comparability of our financial results between years is affected by the fluctuation in the British pound sterling to dollar exchange rate. The functional currency of our U.K. operations is the British pound sterling. In periods when the pound weakens, translating pounds into dollars decreases current period results relative to the prior period. In periods when the pound strengthens, translating pounds into dollars increases current period results in relation to the prior period. Our weighted average pound/dollar exchange rate was 1.439 and 1.980 for the three months ended March 2009 and 2008, respectively. Our operating revenue and operating income by segment would have been higher in 2009 by approximately $73.1 million and $24.7 million, respectively, if the results for our U.K. operations had been translated at the comparable exchange rate for the first quarter of 2008. However, it is important to distinguish between translating and converting foreign currency. Except for a limited number of transactions, we do

not actually convert pounds into dollars. As a result, we view foreign currency translation as a financial reporting issue and not a reflection of operations or profitability in the U.K.

Consolidated premium income includes premium growth, relative to the prior year first quarter, for Unum US supplemental and voluntary lines of business and Colonial Life. Unum US group disability and group life and accidental death and dismemberment lines of business experienced year over year declines in premium income, as expected, due primarily to our continued pricing discipline for our Unum US group business and our strategy of developing a more balanced business
mix. Unum UK premium income, in local currency, declined in the first quarter of 2009 due to a decline in the inforce block of business resulting from lower persistency and sales in prior years in the group long-term disability line of business. Premium income in the Individual Disability - Closed Block segment decreased as expected in this closed block of business.

Net investment income was lower in the first quarter of 2009 relative to the prior year. The weaker pound in 2009 relative to 2008 unfavorably affected translated results for net investment income. We also received lower investment income on bonds in Unum UK for which interest income is linked to a U.K. inflation index, a small portion of which was offset by lower claim payments which are also linked to inflation. In addition, we earned lower interest rates on our floating rate assets, largely offset by lower interest expense on our floating rate debt. Somewhat mitigating the impact of these items is continued growth in the level of invested assets and a slight increase in our portfolio yield due to the investment of new cash at higher rates than that of prior periods.

We reported a net realized investment loss of $64.6 million in the first quarter of 2009 compared to a loss of $68.5 million in the comparable period of 2008. Included in 2009 realized investment losses are $88.2 million of net realized investment losses from sales and write-downs of investments. The 2009 losses relate primarily to fixed maturity securities that we either sold or considered other than temporarily impaired. Also reported as realized investment gains and losses is the change in the fair value of an embedded derivative, as required under the provisions of Statement of Financial Accounting Standards No. 133 Implementation Issue B36 (DIG Issue B36), Embedded Derivatives: Modified Coinsurance Arrangements and Debt Instruments That Incorporate Credit Risk Exposure That Are Unrelated or Only Partially Related to the Creditworthiness of the Obligor Under Those Instruments. During the first quarter of 2009, changes in the fair value of the embedded derivative resulted in net realized gains of $23.6 million compared to net realized losses of $64.1 million in the first quarter of 2008. The DIG Issue B36 gains and losses resulted primarily from a change in credit spreads in the overall investment market. See "Investments" contained in this Item 2 for further discussion.

The ratio of benefits and change in reserves for future benefits to premium income was 84.1 percent in the first quarter of 2009 compared to 84.9 percent in the comparable period of 2008, with continuing improved risk results in each of our segments and in most lines of business within the Unum US segment. See "Segment Results" as follows for discussions of line of business risk results and claims management performance in each of our segments.

Interest and debt expense for the first quarter of 2009 was lower than the prior year's first quarter due primarily to lower levels of outstanding debt and lower rates of interest on our floating rate debt. See "Debt" contained in this Item 2 for additional information.

The deferral of acquisition costs was higher in the first quarter of 2009 relative to the prior year comparable period due primarily to continued growth in certain of our product lines and the associated growth in deferrable expenses.

Operating expenses have increased year over year due primarily to an increase in our pension costs. We continue to aggressively manage our operating expenses as we seek to increase the effectiveness of our operating processes.

Consolidated Sales Results



    (in millions of dollars)
                                                      Three Months Ended March 31
                                                    2009        % Change       2008
    Unum US
    Fully Insured Products                        $   180.3           3.8 %   $ 173.7
    Administrative Services Only (ASO) Products         0.7         (41.7 )       1.2

    Total Unum US                                     181.0           3.5       174.9

    Unum UK                                            19.6           4.8        18.7

    Colonial Life                                      67.6          (0.1 )      67.7

    Individual Disability - Closed Block                0.4         (20.0 )       0.5


    Consolidated                                  $   268.6           2.6     $ 261.8
. . .