Form 8-K SOUTHERN CO For: Aug 03

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August 4, 2026 6:04 AM EDT

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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)			August 3, 2026

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 $0.01 per share	SO	New York Stock Exchange
The Southern Company	Series 2017B 5.25% Junior Subordinated Notes due 2077	SOJC	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
The Southern Company	Series 2025A 6.50% Junior Subordinated Notes due 2085	SOJF	New York Stock Exchange
The Southern Company	2025 Series A Corporate Units	SOMN	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 August 3, 2026, The Southern Company (the “Company”) issued a press release announcing the upsize and pricing of offerings of $725 million aggregate principal amount of its Series 2026A 2.125% Convertible Senior Notes due December 15, 2027 (the “Series 2026A Convertible Notes”) and $1.65 billion aggregate principal amount of its Series 2026B 3.50% Convertible Senior Notes due September 15, 2029 (the “Series 2026B Convertible Notes” and, together with the Series 2026A Convertible Notes, the “Convertible Notes”) in private offerings to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended, reflecting an upsize of $75 million over the previously announced offering size of the Series 2026A Convertible Notes and $150 million over the previously announced offering size of the Series 2026B Convertible Notes. In addition, the Company granted the initial purchasers options to purchase, for settlement within a period of 13 days from, and including, the date the Convertible Notes are first issued, up to an additional $108.75 million aggregate principal amount of the Series 2026A Convertible Notes and up to an additional $247.5 million aggregate principal amount of the Series 2026B Convertible Notes.

Contemporaneously with the pricing of the Convertible Notes, the Company entered into separate and privately negotiated transactions with a limited number of holders of its Series 2024A 4.50% Convertible Senior Notes due June 15, 2027 (the “Series 2024A Convertible Notes”) to repurchase approximately $369 million aggregate principal amount of the Series 2024A Convertible Notes.

A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein.


Item 9.01.			Financial Statements and Exhibits.


(d) Exhibits.
99.1			Press Release issued by the Company on August 3, 2026 announcing the upsize and pricing of the Convertible Notes.

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.