Company: SOJE
Filing Date: 2025-02-25
Form Type: 424B5
Source: 0000092122-25-000022
Chunk: 13

Company: SOUTHERN CO
Filing Date: 2025-02-25
Form: 424B5
Chunk 13
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 including, the next following Interest Reset Date or the maturity date or date of redemption, as the case may be.

“Reset Interest Determination Date” means, in respect of any Interest Reset Period, the day falling two Business Days prior to the beginning of such Interest Reset Period.

#### Option to Defer Interest Payments
So long as no Event of Default under the Subordinated Note Indenture has occurred and is continuing, at the Company’s option, it may, on one or more occasions, defer payment of all or part of the current and accrued interest otherwise due on the Series 2025B Junior Subordinated Notes by extending the interest payment period for up to 10 consecutive years (each period,

<div align='center'>S-11</div>

commencing on the date that the first such interest payment would otherwise have been made, an “Optional Deferral Period”). A deferral of interest payments may not extend beyond the maturity date of the Series 2025B Junior Subordinated Notes or end on a day other than an Interest Payment Date. Any deferred interest on the Series 2025B Junior Subordinated Notes will accrue additional interest at the rate then applicable to the Series 2025B Junior Subordinated Notes from the applicable Interest Payment Date to the date of payment, compounded semi-annually (such deferred interest and additional interest accrued thereon, “Additional Interest”), to the extent permitted under applicable law. No interest will be due and payable on the Series 2025B Junior Subordinated Notes until the end of an Optional Deferral Period, except upon a redemption of the Series 2025B Junior Subordinated Notes during such Optional Deferral Period.

At the end of an Optional Deferral Period or on any redemption date, the Company will be obligated to pay all accrued and unpaid interest, including any Additional Interest. Once the Company pays all accrued and unpaid interest payments on the Series 2025B Junior Subordinated Notes, including any Additional Interest, the Company can again defer interest payments on the Series 2025B Junior Subordinated Notes as described above, but not beyond the maturity date of the Series 2025B Junior Subordinated Notes.

The Company is required to provide to the Subordinated Note Indenture Trustee written notice of any optional deferral of interest at least 10 and not more than 60 Business Days prior to the earlier of (1) the next applicable Interest Payment Date or (2) the date, if any, upon which it is required to give notice of such Interest Payment Date