X0306 4 2016-07-01 0 0000092122 SOUTHERN CO SO 0001573512 Greene Kimberly S, 30 IVAN ALLEN JR. BLVD ATLANTA GA 30308 0 1 0 0 EVP & COO, Southern Co. Southern Company Common Stock 2016-07-05 4 M 0 141818 41.28 A 177686.3653 D Southern Company Common Stock 2016-07-05 4 S 0 141818 54.00 D 35868.3653 D Option Right to Buy 41.28 2016-07-05 4 M 0 141818 0.00 D 2015-02-10 2024-02-10 Southern Company Common Stock 141818 70909 D Amount of securities beneficially owned includes 6,163 shares of Southern Company Common Stock and 29,705.3653 shares of Southern Company Common Stock representing remaining underlying time vesting RSUs and related DEUs that have not yet vested. The time vesting RSUs and related DEUs are settled one for one in shares of Southern Company Common Stock. Options vest 33% per year on the anniversary of the grant date. Includes the right to have shares withheld upon exercise to satisfy tax withholding obligations. Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan. /s/ Laura O. Hewett, Attorney-in-Fact for Kimberly S. Greene 2016-07-06