144 0001573512 XXXXXXXX LIVE 0000092122 SOUTHERN COMPANY 001-03526 30 IVAN ALLEN JR BLVD NW ATLANTA GA 30308 4045065000 KIMBERLY GREENE OFFICER COMMON MERRILL LYNCH

3455 PEACHTREE RD NE SUITE 1000 ATLANTA GA 30326

25000 2416750 1119391291 03/30/2026 NEW YORK COMMON 09/05/2024 DIVIDEND REINVESTMENT THE SOUTHERN COMPANY N 959 09/05/2024 COMPENSATORY PAYMENT COMMON 12/05/2024 DIVIDEND REINVESTMENT THE SOUTHERN COMPANY N 1007 12/05/2024 COMPENSATORY PAYMENT COMMON 03/05/2025 DIVIDEND REINVESTMENT THE SOUTHERN COMPANY N 1217 03/05/2025 COMPENSATORY PAYMENT COMMON 02/01/2025 RESTRICTED STOCK UNIT VEST THE SOUTHERN COMPANY N 1926 02/01/2025 COMPENSATORY PAYMENT COMMON 02/01/2025 RESTRICTED STOCK UNIT VEST THE SOUTHERN COMPANY N 158 02/01/2025 COMPENSATORY PAYMENT COMMON 02/05/2025 RESTRICTED STOCK UNIT VEST THE SOUTHERN COMPANY N 1887 02/05/2025 COMPENSATORY PAYMENT COMMON 02/05/2025 RESTRICTED STOCK UNIT VEST THE SOUTHERN COMPANY N 79 02/05/2025 COMPENSATORY PAYMENT COMMON 02/05/2025 PERFORMANCE STOCK UNIT VEST THE SOUTHERN COMPANY N 12462 02/05/2025 COMPENSATORY PAYMENT COMMON 02/05/2025 PERFORMANCE STOCK UNIT VEST THE SOUTHERN COMPANY N 3452 02/05/2025 COMPENSATORY PAYMENT COMMON 02/13/2025 RESTRICTED STOCK UNIT VEST THE SOUTHERN COMPANY N 1655 02/13/2025 COMPENSATORY PAYMENT COMMON 02/13/2025 RESTRICTED STOCK UNIT VEST THE SOUTHERN COMPANY N 198 02/13/2025 COMPENSATORY PAYMENT Y 03/30/2026 11/26/2025 KIMBERLY GREENE