X0306 4/A 2017-07-03 2017-10-02 0 0000092122 SOUTHERN CO SO 0001281028 HAGEN VERONICA M 30 IVAN ALLEN JR. BLVD. ATLANTA GA 30308 1 0 0 0 Deferred Stock Units 0.00 2017-07-03 4 A 0 1409.7744 47.88 A Southern Company Common Stock 1409.7744 54950.5219 D Acquired pursuant to Southern's Deferred Compensation Plan, payable in stock only upon termination. There is no exercise or expiration date. Amendment filed to correct the total number of deferred stock units beneficially owned under the Deferred Compensation Plan on July 3, 2017. The 1,409.7744 deferred stock units acquired were inadvertently deducted from rather than added to the total number beneficially owned. /s/ Laura O. Hewett, Attorney-in-Fact for Veronica M. Hagen 2017-10-02