Company: SOJE
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0000092122-25-000036
Chunk: 82

Company: SOUTHERN CO
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 82
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                                                                 |  5,957,360 |
|               |     | SERP  |     |                                                                 |  2,400,222 |
| Kim Greene    |     | SBP-P |     |                                                                 |  4,224,937 |
|               |     | SERP  |     |                                                                 |  1,975,395 |
| Jim Kerr      |     | SBP-P |     |                                                                 |  2,088,644 |
|               |     | SERP  |     |                                                                 |    723,715 |

The pension benefit amounts in the tables above were calculated as of December 31, 2024 assuming payments would begin as soon as possible under the terms of the plans. Accordingly, appropriate early retirement reductions were applied. Any unpaid annual performance-based compensation was assumed to be paid at 155% of the target level. Pension Plan benefits were calculated assuming each NEO chose a single life annuity form of payment, because that results in the greatest monthly benefit. The single sum values were based on a 4.47% discount rate for the Final Average Earnings Formula for accruals for 2024 and beyond, and the SBP-P calculations are based on ten annual installments.

#### Annual Performance Pay Program
The amount payable in the event of a Company CIC (assuming the program is terminated) or a Subsidiary CIC is the greater of target or the three-year historical average payout at the applicable business unit. Because the three-year historical average payouts for 2022-2024 were above the target level for all of the NEOs, the amount that would have been payable was the three-year historical average payout at the applicable business unit.

#### PSUs and PRSUs (Equity Awards)
Equity Awards issued prior to August 15, 2022 would be treated as described in the charts above. However, this paragraph describes the potential treatment of Equity Awards granted on or after August 15, 2022, including the PRSUs and PSUs granted in 2023 and 2024. If a Company CIC occurs and no replacement award is issued, then all Equity Awards vest and PSUs vest at the greater of target or projected actual performance. If a Subsidiary CIC occurs, then all Equity Awards held by NEOs employed by the applicable subsidiary (and who cease employment with Southern and its affiliates) vest and their PSUs vest at target. In addition, if there is a CIC Termination