Company: SOJE
Filing Date: 2025-11-04
Form Type: 424B2
Source: 0000092122-25-000092
Chunk: 136

Company: SOUTHERN CO
Filing Date: 2025-11-04
Form: 424B2
Chunk 136
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='center'>S-76</div>

#### Modification of Indenture
In addition to the purposes set forth under “Description of the Senior Notes—Modification” in the accompanying Prospectus, the Company and the Senior Note Indenture Trustee may from time to time, without the consent of any holders of RSNs, amend and/or supplement the Senior Note Indenture for the following purposes:

• following the purchase contract settlement date, to supplement any of the provisions of the RSNs to such extent as shall be necessary to permit or facilitate the defeasance and discharge of the RSNs pursuant to the Senior Note Indenture, provided that any such action will not adversely affect the interests of any holder of any RSN in any material respect;

• set forth the terms of any series of RSNs following a successful remarketing to incorporate the reset interest rate or floating rate and reset spread (as the case may be), incorporate semi-annual interest payment dates (if applicable) and to eliminate the optional redemption provision in the Series 2025C RSNs; and

• to conform the terms of the Senior Note Indenture and the RSNs to the descriptions thereof contained in the “Description of the Remarketable Senior Notes,” “Description of the Equity Units,” “Description of the Purchase Contracts” and “Certain Provisions of the Purchase Contract and Pledge Agreement” sections in the preliminary Prospectus Supplement for the Equity Units, as supplemented and/or amended by the related pricing term sheet.

#### Book-Entry Issuance—The Depository Trust Company
Each series of RSNs that forms a part of the Corporate Units will be issued in fully registered form and will be registered in the name of the purchase contract agent. The RSNs that do not form a part of the Corporate Units will be evidenced by one or more global notes registered in the name of DTC’s nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. Such global notes will be deposited with the Senior Note Indenture Trustee as custodian for DTC. See “Certain Provisions of the Purchase Contract and Pledge Agreement—Book-Entry Issuance—The Depository Trust Company” for a description of DTC.

Purchases of the RSNs under the DTC system must be made by or through direct participants, which will receive a credit for the RSNs on DTC’s records. The ownership interest of each actual purchaser of each R