X0306 4 2015-05-21 0000005513 Unum Group UNM 0001301044 Caulfield E Michael 1 FOUNTAIN SQUARE CHATTANOOGA TN 37402 1 Common Stock 2015-05-21 4 A 0 4006 0 A 49138 D All are restricted stock units ("RSUs") vesting on May 21, 2016. Includes 13,673 deferred share rights ("DSRs"), 17,293 RSUs, and 18,172 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 delivery of shares of common stock upon the settlement of 8,772.564 RSUs, and the exempt acquisitions of an aggregate of 260.040 DSRs, 335.474 RSUs and 262.158 shares of common stock pursuant to the reinvestment of dividends, since the date of the reporting person's prior Form 4. /s/ Jullienne, J. Paul, Attorney-in-Fact 2015-05-26