Company: SOJE
Filing Date: 2025-11-03
Form Type: 424B5
Source: 0000092122-25-000088
Chunk: 177

Company: SOUTHERN CO
Filing Date: 2025-11-03
Form: 424B5
Chunk 177
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 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reference in this Prospectus shall be deemed to be modified or superseded for purposes of this Prospectus to the extent that a statement contained in this Prospectus or in any other subsequently filed document which also is, or is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 Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Prospectus.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 requests should be directed to Melissa K. Caen, Assistant Secretary, The Southern Company, 30 Ivan Allen Jr. Blvd., N.W., Atlanta, Georgia 30308, telephone (404) 506-5000.

### THE SOUTHERN COMPANY
The Company was incorporated under the laws of Delaware on November 9, 1945. The principal executive offices of the Company are located at 30 Ivan Allen Jr. Blvd., N.W., Atlanta, Georgia 30308, and the telephone number is (404) 506-5000.

The Company is a holding company that owns all of the outstanding common stock of three traditional electric operating

companies, Southern Power Company (“Southern Power”) and Southern Company Gas. The traditional electric operating companies – Alabama Power Company, Georgia Power Company and Mississippi Power Company – are each operating public utility companies providing electric service to retail customers in three Southeastern states in addition to wholesale customers in the Southeast. Southern Power is also an operating public utility company. Southern Power develops, constructs