X0303 4 2010-05-20 0 0000005513 Unum Group UNM 0001301044 Caulfield E Michael 1 FOUNTAIN SQUARE CHATTANOOGA TN 37402 1 0 0 0 Common Stock 2010-05-20 4 A 0 2325.0 0.0 A 22601.0 D All are restricted stock units vesting on May 20, 2011. Includes 12,381 deferred share rights, 5,375 restricted stock units, and 4,845 shares held outside any plan. Beneficial ownership amount includes the exempt acquisitions of additional deferred share rights, restricted stock units and 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 2010-05-24