Company: SOJE
Filing Date: 2025-11-03
Form Type: 424B5
Source: 0000092122-25-000088
Chunk: 42

Company: SOUTHERN CO
Filing Date: 2025-11-03
Form: 424B5
Chunk 42
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 • The RSN of each series, which is no longer a component of Corporate Units, is released from the pledge under the purchase contract and pledge agreement and delivered to the holder and is tradable as a separate security. • A holder owns the two Treasury securities that form a part of the 40 Treasury Units but will pledge them to the Company through the collateral agent to secure the holder’s obligation under the related purchase contracts. • Each Treasury security together with the 20 purchase contracts constitute 20 Treasury Units. • During a blackout period or following a successful remarketing, you may not create Treasury Units or recreate Corporate Units. • Unless a blackout period is occurring or there has been a successful remarketing, the holder can also transform 40 Treasury Units and an RSN of each series having a principal amount of $1,000 into 40 Corporate Units. Following that transformation, the two Treasury securities, which will no longer be a component of the Treasury Units, will be released from the pledge under the purchase contract and pledge agreement and delivered to the holder and will be tradable as separate securities. Illustrative Remarketing Timeline The following timeline is for illustrative purposes only. The dates in this timeline are based on the time periods set forth in the purchase contract and pledge agreement and the form of remarketing agreement that will be an exhibit to the purchase contract and pledge agreement. This timeline assumes that the Company will elect to conduct an optional remarketing during the first permissible time period for an optional remarketing period.

| Date                                                                                        
 June 6, 2028 (five business days prior to the first day of the optional remarketing period) 
 June 9, 2028 (two business days prior to the beginning of the optional remarketing period)  |     | Event                                                                                                                                                                                                                                                                                                                                                        
 The Company will, or the Company will request that the depository, notify holders of Corporate Units, Treasury Units and separate RSNs of both series of the Company’s election to conduct an optional remarketing. Such notice will specify the first day of the optional remarketing period and the procedures to be followed in the optional remarketing. 
 lLast day prior to the optional remarketing to create Treasury Units from Corporate Units and recreate Corporate Units from Treasury Units (holders may once again be able to create and recreate units if the optional remarketing is not successful);                                                                                                      |
|:--------------------------------------------------------------------------------------------|:----|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                             |     | lLast day prior to the optional remarketing for holders of Corporate Units