SO: Other company developments

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. Ite