Company: SOJE
Filing Date: 2025-01-10
Form Type: 424B2
Source: 0000092122-25-000006
Chunk: 48

Company: SOUTHERN CO
Filing Date: 2025-01-10
Form: 424B2
Chunk 48
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 also available on the Company’s website at http://www.southerncompany.com. The information on the Company’s website is not incorporated by reference into this Prospectus and should not be considered to be a part of this Prospectus.

### INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
The following documents have been filed with the Commission pursuant to the 1934 Act and are incorporated by reference in this Prospectus and made a part of this Prospectus:

(a) the Form 10-K ;

(b) all information in the Company’s Definitive Proxy Statement on Schedule 14A filed on April 14, 2023 , to the extent incorporated by reference in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022 ; and

(c) the Company’s Current Report on Form 8-K dated February 1, 2024 and Current Report on Form 8-K/A dated October 16, 2023 (filed on February 6, 2024 ).

All documents filed by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act subsequent to the date of this Prospectus and prior to the termination of this offering shall be deemed to be incorporated by reference in this Prospectus and made a part of this Prospectus from the date of filing of such documents; provided, however, that the Company is not incorporating any information furnished under Item 2.02 or 7.01 of any Current Report on Form 8-K unless specifically stated otherwise. Any statement contained in a document incorporated or deemed to be incorporated by

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reference in this Prospectus shall be deemed to be modified or superseded for purposes of this Prospectus to the extent that a statement contained in this Prospectus or in any other subsequently filed document which also is, or is deemed to be, incorporated by reference in this Prospectus modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Prospectus.

The Company will provide without charge to each person, including any beneficial owner, to whom this Prospectus is delivered, on the written or oral request of any such person, a copy of any or all documents incorporated by reference in this Prospectus (other than the exhibits to such documents unless such exhibits are specifically incorporated by reference in this Prospectus). Such