X0609 4 2026-10-01 0000092122 SOUTHERN CO SO 0001167313 MEADOR DAVID E false 30 IVAN ALLEN JR. BLVD., NW ATLANTA GA 30308 true false false false false Deferred Stock Units Holding 0 2026-10-01 4 A false 913.5019 83.47 A Southern Company Common Stock 913.5019 11158.8237 D Represents quarterly director cash and equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company (Deferred Compensation Plan). Each deferred stock unit represents the right to receive one share of Southern Company common stock. Deferred stock units are settled in shares of Southern Company common stock on the date(s) following the termination of the reporting person's service on the Board as specified by the reporting person pursuant to the Deferred Compensation Plan. There is no exercise or expiration date. Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan. /s/ Brittney Anderson, Attorney-in-Fact for David E. Meador 2026-10-05