Company: SOJE
Filing Date: 2025-02-26
Form Type: 424B2
Source: 0000092122-25-000026
Chunk: 2

Company: SOUTHERN CO
Filing Date: 2025-02-26
Form: 424B2
Chunk 2
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 Matters                                                            |     |   11 |
| Experts                                                                  |     |   11 |

<div align='center'>S-2</div>

SUMMARY The following summary is qualified in its entirety by, and should be read together with, the more detailed information that is included elsewhere in this Prospectus Supplement and the accompanying Prospectus, as well as the information that is incorporated or deemed to be incorporated by reference in this Prospectus Supplement and the accompanying Prospectus. Investing in the Series 2025B Junior Subordinated Notes involves risks. See “Risk Factors” beginning on page S-7 in this Prospectus Supplement. The Southern Company 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. Boulevard, N.W., Atlanta, Georgia 30308, and the telephone number is (404) 506-5000. The Company’s internet address is http://www.southerncompany.com. The information on the Company’s website is not incorporated by reference in this Prospectus Supplement and should not be considered to be a part of this Prospectus Supplement. 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 (“Georgia Power”) 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, acquires, owns, operates and manages power generation assets, including renewable energy projects, and sells electricity at market-based rates in the wholesale market. Southern Company Gas is an energy services holding company whose primary business is the distribution of natural gas in four states – Illinois, Georgia, Virginia and Tennessee – through its natural gas distribution utilities. Southern Company Gas is also involved in several other businesses that are complementary to the distribution of natural gas. The Offering

| Issuer                 
 Security Offered       
 Maturity               
 Interest Rate          |     | The Southern Company.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
 The Company is offering $1,800,000,000 aggregate principal amount of its Series 2025B 6.375% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due March 15, 2055. The Series 2025B Junior Subordinated Notes will be