Company: SOJE
Filing Date: 2025-11-04
Form Type: 424B2
Source: 0000092122-25-000092
Chunk: 41

Company: SOUTHERN CO
Filing Date: 2025-11-04
Form: 424B2
Chunk 41
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 of an Equity Unit will be calculated by dividing the stated amount of $50 by the applicable market value, rounded to the nearest ten thousandth of a share (subject to adjustment).

(5) If the applicable market value of the Company’s common stock is greater than or equal to the threshold appreciation price, the number of shares of the Company’s common stock to be delivered to a holder of an Equity Unit will be 0.4294 shares (subject to adjustment).

(6) The “applicable market value” means the average of the VWAP of the Company’s common stock on each trading day during the 20 consecutive scheduled trading day period ending on the third scheduled trading day immediately preceding the purchase contract settlement date (subject to adjustment as described herein if a market disruption event occurs).

<div align='center'>S-22</div>

The RSNs The Series 2025B RSNs and the Series 2025C RSNs have the terms described below:

| Series 2025B RSNs                                                                                                                                                                                                                                                                                                                              |     | Series 2025C RSNs                                                                                                                                                                                                                                                                                                                             |
| (Owed to Holder)Interest4.15% per annum paid quarterly(1)(following a successful remarketing as fixed-rate notes, interest will be payable at a reset rate and will be payable semi-annually or, following a successful remarketing as floating-rate notes, interest will be payable based on a reset spread and will be payable quarterly)(2) |     | -Owed to Holder)Interest4.15% per annum paid quarterly(1)(following a successful remarketing as fixed-rate notes, interest will be payable at a reset rate and will be payable semi-annually or, following a successful remarketing as floating-rate notes, interest will be payable based on a reset spread and will be payable quarterly)(2 |

| (Owed to Holder)$1,000at Maturity(December 15, 2030) |     | -Owed to Holder)$1,000at Maturity(December 15, 2033 |

(1) Interest payment dates may be adjusted in a successful remarketing as described under “Description of the Remarketable Senior Notes—Remarketing.” (2) In connection with any successful remarketing of the RSNs, the optional redemption will cease to apply to the Series 2025C RSNs. The Series 2025B RSNs shall not be subject to optional redemption at any time.

<div align='center'>S-23