X0303 4/A 2010-02-23 2010-02-25 0 0000005513 Unum Group UNM 0001354738 Horn Randall C 1 FOUNTAIN SQUARE CHATTANOOGA TN 37402 0 1 0 0 EVP, President & CEO, Colonial Common Stock 2010-02-23 4 F 0 2871.0 20.83 D 117711.0 D Common Stock 2010-02-24 4 F 0 4476.0 20.93 D 113235.0 D Represents shares withheld to satisfy tax withholding obligation upon vesting of 8,275 shares of restricted stock. Represents beneficial ownership as of March 4, 2010, giving effect to all transactions reported prior to the date hereof other than those amended herein, which includes 54,573 restricted stock units and 63,138 shares held outside any plan. Represents shares withheld to satisfy tax withholding obligation upon vesting of 13,378.598 restricted stock units. Represents beneficial ownership as of March 4, 2010, giving effect to transactions reported prior to the date herreof other than those amended herein, which includes 54,573 restricted stock units and 58,662 shares held outside any plan. This filing amends lines 1 and 3 of the Form 4 filed on February 25, 2010 to correct an administrative error with respect to the number of shares reported as withheld to satisfy the tax withholding liability. This error also resulted in the over-reporting of the amount of securities beneficially owned by the reporting person as reported in Column 5 of Table I of the original Form 4. /s/ Jullienne, J. Paul, Attorney-in-Fact 2010-03-04