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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D. C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

| Date of Report (Date of earliest event reported) | November 5, 2021

| Commission File Number |  | Registrant, State of Incorporation, Address and Telephone Number |  | I.R.S. Employer Identification No. |

| 1-3526 |  | The Southern Company |  | 58-0690070 |

(A Delaware Corporation)
30 Ivan Allen Jr. Boulevard, N.W.
Atlanta, Georgia 30308
(404) 506-5000
The name and address of the registrant have not changed since the last report.
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Registrant | Title of each class | Trading Symbol(s) | Name of each exchange on which registered
The Southern Company | Common Stock, par value $5 per share | SO | New York Stock Exchange
The Southern Company | Series 2016A 5.25% Junior Subordinated Notes due 2076 | SOJB | New York Stock Exchange
The Southern Company | Series 2017B 5.25% Junior Subordinated Notes due 2077 | SOJC | New York Stock Exchange
The Southern Company | 2019 Series A Corporate Units | SOLN | New York Stock Exchange
The Southern Company | Series 2020A 4.95% Junior Subordinated Notes due 2080 | SOJD | New York Stock Exchange
The Southern Company | Series 2020C 4.20% Junior Subordinated Notes due 2060 | SOJE | New York Stock Exchange
The Southern Company | Series 2021B 1.875% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due 2081 | SO 81 | New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01. | Other Events.

On November 5, 2021, The Southern Company (the “Company”) entered into an Underwriting Agreement covering the issue and sale of $600,000,000 aggregate principal amount of its Series 2021C Floating Rate Senior Notes due May 10, 2023 (the “Series 2021C Senior Notes”). The Series 2021C Senior Notes were registered under the Securities Act of 1933, as amended, pursuant to the shelf registration statement (Registration No. 333-253286) of the Company.

Item 9.01. | Financial Statements and Exhibits.

(d) Exhibits.
1.2 | Underwriting Agreement relating to the Series 2021 C Senior Notes, dated November 5, 2021, among the Company and BofA Securities, Inc., RBC Capital Markets, LLC and U.S. Bancorp Investments, Inc., as representatives of the several Underwriters named in Schedule I thereto.
4.4 | Twenty-Fourth Supplemental Indenture to Senior Note Indenture dated as of November 10, 2021, providing for the issuance of the Series 2021C Senior Notes.
4.9 | Form of the Series 2021C Senior Note (included in Exhibit 4.4 above).
5.1 | Opinion of Troutman Pepper Hamilton Sanders LLP relating to the Series 2021C Senior Notes.
8.1 | Tax Opinion of Troutman Pepper Hamilton Sanders LLP relating to the Series 2021C Senior Notes.
23.1 | Consent of Troutman Pepper Hamilton Sanders LLP (included in Exhibit 5.1 above).
23.2 | Consent of Troutman Pepper Hamilton Sanders LLP (included in Exhibit 8.1 above).
104 | Cover Page Interactive Data File – The cover page iXBRL tags are embedded within the inline XBRL document.

SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 10, 2021 | THE SOUTHERN COMPANY
| By | /s/Melissa K. Caen
|  | Melissa K. Caen Assistant Secretary

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