Company: SOJE
Filing Date: 2025-01-10
Form Type: 424B2
Source: 0000092122-25-000006
Chunk: 68

Company: SOUTHERN CO
Filing Date: 2025-01-10
Form: 424B2
Chunk 68
---
 MATTERS
The validity of the Common Stock, the Senior Notes, the Junior Subordinated Notes, the Stock Purchase Contracts and the Stock Purchase Units and certain matters relating to such securities will be passed upon on behalf of the Company by Troutman Pepper Hamilton Sanders LLP, Atlanta, Georgia. Certain legal matters will be passed upon for the underwriters by Hunton Andrews Kurth LLP, New York, New York. From time to time, Hunton Andrews Kurth LLP acts as counsel to affiliates of the Company for some matters.

### EXPERTS
The consolidated financial statements, and the related financial statement schedule, incorporated in this Prospectus by reference from the Form 10-K, and the effectiveness of the Company’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports, which are incorporated herein by reference. Such consolidated financial statements and financial statement schedule have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.

<div align='center'>11

$500,000,000</div>

#### Series 2025A 6.50% Junior Subordinated Notes

#### due March 15, 2085
<div align='center'>__________________________________</div>

### PROSPECTUS SUPPLEMENT
<div align='center'>January 8, 2025

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Joint Book-Running Managers</div>

| BofA Securities |     | J.P. Morgan |     | Morgan Stanley |     | RBC Capital Markets |     | Wells Fargo Securities |