X0306 4/A 2018-04-27 2018-04-30 0 0000092122 SOUTHERN CO SO 0001227464 FANNING THOMAS A 30 IVAN ALLEN JR. BLVD. NW ATLANTA GA 30308 0 1 0 0 President, CEO & Chairman Phantom Stock Units 0.00 2018-04-27 4 A 0 117.6185 46.40 A Southern Company Common Stock 117.6185 17769.0095 D Each share of phantom stock represents the right to receive one share of Southern Company common stock or the cash value thereof. Includes phantom stock units acquired as if reinvested in the dividend reinvestment plan. There is no exercise or expiration date. Shares of phantom stock are payable in cash following termination of Mr. Fanning's employment with The Southern Company. Mr. Fanning may transfer his phantom stock account into an alternative investment account at any time. Amendment filed to correct the number of phantom stock units beneficially owned on April 27, 2018. The 117.6125 phantom stock units acquired were inadvertently deducted from rather than added to the total number beneficially owned. /s/ Marcia R. DeMar, Attorney-in-Fact for Thomas A. Fanning 2019-01-23