X0306 4 2017-05-25 0000005513 Unum Group UNM 0001207406 LARSON GLORIA C 1 FOUNTAIN SQUARE CHATTANOOGA TN 37402 1 Common Stock 2017-05-25 4 A 0 3304 0 A 71690 D Common Stock 2017-05-25 4 A 0 2643 0 A 74333 D All are restricted stock units ("RSUs") vesting on May 25, 2018. Includes 40,094 deferred share rights ("DSRs"), 29,136 RSUs, and 2,460 shares of common stock. All DSRs and RSUs may be settled, on a 1-for-1 basis, only in shares of common stock. Fractional amounts have been rounded to the nearest whole number. Beneficial ownership amount accounts for the exempt acquisitions of an aggregate of 339.664 DSRs and 218.676 RSUs pursuant to the reinvestment of dividends since the date of the reporting person's prior Form 4. Represents DSRs in lieu of cash for annual retainers pursuant to the election of the reporting person. Includes 42,737 DSRs, 29,136 RSUs, and 2,460 shares of common stock. Fractional amounts have been rounded to the nearest whole number. /s/ Jullienne, J. Paul, Attorney-in-Fact 2017-05-30