Company: SOJE
Filing Date: 2025-11-03
Form Type: 424B5
Source: 0000092122-25-000088
Chunk: 13

Company: SOUTHERN CO
Filing Date: 2025-11-03
Form: 424B5
Chunk 13
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 the applicable early settlement date and to provide a prospectus in connection therewith covering any securities to be delivered in respect of the purchase contracts being settled, subject to certain exceptions. In the event that you seek to exercise your early settlement right and a registration statement is required to be effective in connection with the exercise of such right, but no such registration statement is then effective, your exercise of such right will be void unless and until such a registration statement is effective. For so long as there is a material business transaction or development that has not yet been publicly disclosed, the Company will not be required to file such registration statement or provide such a prospectus, and the early settlement right will not be available, until the Company has publicly disclosed such transaction or development; provided that the Company will use commercially reasonable efforts to make such disclosure as soon as it is commercially reasonable to do so.

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#### What is the Treasury portfolio?
Upon a successful optional remarketing, the RSNs will be replaced by the Treasury portfolio. The Treasury portfolio is a portfolio of United States Treasury securities consisting of:

• United States Treasury securities (or principal or interest strips thereof) that mature on or prior to the purchase contract settlement date in an aggregate amount at maturity equal to the principal amount of the Series 2025B RSNs underlying the undivided beneficial ownership interests in the Series 2025B RSNs included in the Corporate Units on the optional remarketing date;

• United States Treasury securities (or principal or interest strips thereof) that mature on or prior to the purchase contract settlement date in an aggregate amount at maturity equal to the principal amount of the Series 2025C RSNs underlying the undivided beneficial ownership interests in the Series 2025C RSNs included in the Corporate Units on the optional remarketing date;

• if the optional remarketing settlement date occurs prior to September 15, 2028, with respect to the originally-scheduled quarterly interest payment dates on the Series 2025B RSNs that would have occurred on September 15, 2028 and the purchase contract settlement date, U.S. Treasury securities (or principal or interest strips thereof) that mature on or prior to (i) September 14, 2028 (in connection with the interest payment date that would have occurred on September 15, 2028) and (ii) December 14, 2028 (in connection with the interest payment date that would have occurred on the purchase contract