Company: SOJE
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0000092122-25-000036
Chunk: 79

Company: SOUTHERN CO
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 79
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 payable under the Pension Plan and Supplemental Plans in connection with the Traditional Termination Events are described in the Benefit Plan Summary in Appendix B beginning on page 102 .

| Program            |     | Retirement                                                                                     |     | Lay Off                  |     | Resignation            |     | Death or Disability                                                                                                        |     | InvoluntaryTermination(For Cause)    |
| PPP                |     | Prorated if before 12/31                                                                       |     | Prorated if before 12/31 |     | Forfeit                |     | Prorated if before 12/31                                                                                                   |     | Forfeit                              |
| PSUs               |     | No proration and paid on regular schedule; amount of payment depends on amount actually earned |     | Forfeit unvested award   |     | Forfeit unvested award |     | Prorated based on number of months employed during performance period; amount of payment depends on amount actually earned |     | Forfeit unpaid award, even if vested |
| PRSUs              |     | No proration and paid on regular schedule, pending achievement of performance goal             |     | Forfeit unvested award   |     | Forfeit unvested award |     | Vest; full payout of unvested amount; payable within 30 days                                                               |     | Forfeit unpaid award, even if vested |
| Financial Planning 
 Perquisite         |     | Continues for one year                                                                         |     | Terminates               |     | Terminates             |     | Continues for one year                                                                                                     |     | Terminates                           |

#### 72Southern Company2025 Proxy Statement

#### Executive Compensation Tables
The following chart describes the treatment of payments under compensation and benefit programs under different change-in-control events, except the pension plans. Payments under the Pension Plan are not affected by change-in-control events.

| Program                       |     | Company CIC                                                                                                                                                                        |     | Subsidiary CIC                                                                                                                                            |     | CIC Termination                                                                                                                                                   |
| PPP                           |     | If program is not terminated, payout for year in which CIC occurs is at the greater of actual or target performance                                                                
 If program is terminated within two years after CIC, prorated for year of termination at greater of target or three-year historical average payout at the applicable business unit |     | For impacted subsidiary employees, prorated for year of CIC at greater of target or three-year historical average payouts at the applicable business unit |