Company: SOJE
Filing Date: 2025-03-31
Form Type: PRE 14A
Source: 0000092122-25-000032
Chunk: 88

Company: SOUTHERN CO
Filing Date: 2025-03-31
Form: PRE 14A
Chunk 88
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 of $100 at the beginning of each Measurement Period to produce the Covered Year-end values of such investment as of the end of the Covered Year, as applicable. Because Covered Years are presented in the table in reverse chronological order (from top to bottom), the table should be read from bottom to top for purposes of understanding cumulative returns over time.

#### Column (g)
The peer group utilized in the table above is the Philadelphia Utilities Sector Index (UTY). For each Covered Year, the peer group cumulative TSR was calculated based on a deemed fixed investment of $100 in the index through each Measurement Period, assuming dividend reinvestment.

#### Column (i)
For purposes of this PvP disclosure, our relative TSR is calculated substantially as described above in our Compensation Discussion and Analysis. See page 54 for more information on the calculation of relative TSR and the results shown in this Pay Versus Performance disclosure.

Descriptions of Relationships Between CAP and Certain Financial Performance Measure Results The following charts provide, across the Covered Years, a clear description of the relationships between (1) our cumulative TSR and the cumulative TSR for the peer group reflected in the PVP Table above, (2) PEO CAP and the financial performance measures results set forth in columns (f), (h) and (i) of the PVP Table above and (3) non-PEO NEO CAP and the financial performance measures results set forth in columns (f), (h) and (i) of the PVP Table above.

Compensation Actually Paid v. Southern TSR & Peer Group TSR

#### 78Southern Company2025 Proxy Statement

#### Executive Compensation Tables
| Compensation Actually Paid vs. Net Income |     | Compensation Actually Paid vs. 1-Yr rTSR* |

* As noted above, our 2024 LTI program utilized and applied significant weighting to our 3-year relative TSR metric, rather than the 1-year relative TSR metric shown. For more information, see page 54 .

Most Important Performance Measures This table provides what the Company believes represent the most important financial performance measures (including relative TSR) we used to link CAP for our PEO and non-PEO NEOs for 2024 to our performance for 2024.

| 1-year Relative TSR      |
| 3-year Relative TSR      |
| Return on Equity (ROE)   |
| Earnings per Share (EPS) |
| GHG Reduction Metric     |

#### Southern Company2025 Proxy Statement79
Audit Committee Matters

#### Audit Committee Report
The Audit Committee oversees the