Company: SOJE
Filing Date: 2025-11-04
Form Type: 424B2
Source: 0000092122-25-000092
Chunk: 114

Company: SOUTHERN CO
Filing Date: 2025-11-04
Form: 424B2
Chunk 114
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 close of business on the record date for the distribution.

<div align='center'>S-65</div>

### CERTAIN PROVISIONS OF THE PURCHASE CONTRACT AND PLEDGE AGREEMENT
In this description of “Certain Provisions of the Purchase Contract and Pledge Agreement,” “Southern Company” and the “Company” refer only to The Southern Company and any successor obligor, and not to any of its subsidiaries.

The following is a summary of some of the other terms of the purchase contract and pledge agreement. The summary contains a description of additional material terms of such agreement but is only a summary and is not complete. This summary is subject to and is qualified by reference to all the provisions of the purchase contract and pledge agreement, including the definitions of certain terms used therein, the form of which has been or will be filed and incorporated by reference as an exhibit to the registration statement of which this Prospectus Supplement and the accompanying Prospectus form a part.

#### General
Except as described under “—Book-Entry System” below, payments on the Corporate Units and the Treasury Units will be payable, the purchase contracts will be settled and transfers of the Corporate Units and the Treasury Units will be registrable at, the office of the purchase contract agent or its agent, in each case, in Hartford, Connecticut. In addition, if the Corporate Units or the Treasury Units do not remain in book-entry form, the Company will make payments on the Corporate Units and the Treasury Units by check mailed to the address of the person entitled thereto as shown on the security register or by a wire transfer to the account designated by the holder by a prior written notice at least five business days prior to the relevant payment date.

Shares of common stock will be delivered on the purchase contract settlement date (or earlier upon early settlement), or, if the purchase contracts have terminated, the related pledged securities will be delivered (subject to delays, including potentially as a result of the imposition of the automatic stay under the United States Bankruptcy Code, as described under “Description of the Purchase Contracts—Termination”) at the office of the purchase contract agent or its agent upon presentation and surrender of the applicable Corporate Unit or Treasury Unit certificate, if in certificated form.

If Corporate Units or Treasury Units are in certificated form and the holder fails to present and surrender the certificate evidencing the Corporate Units or the Treasury Units to the purchase contract agent on or prior to the purchase contract settlement date, the shares of common stock issuable upon settlement with respect to the related purchase contract