Southern Company announces upsize and pricing of $725 million in aggregate principal amount of Series 2026A 2.125% Convertible Senior Notes due December 15, 2027 and $1.65 billion in aggregate principal amount of Series 2026B 3.50% Convertible Senior Notes due September 15, 2029

Southern Company announces upsize and pricing of $725 million in aggregate principal amount of Series 2026A 2.125% Convertible Senior Notes due December 15, 2027 and $1.65 billion in aggregate principal amount of Series 2026B 3.50% Convertible Senior Notes due September 15, 2029

PR Newswire

ATLANTA, Aug. 3, 2026

ATLANTA, Aug. 3, 2026 /PRNewswire/ -- Southern Company (NYSE: SO) today announced the pricing of $725 million in 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 in 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 placements to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the "Securities Act"), reflecting upsizes of $75 million and $150 million over the previously announced offering sizes for the Series 2026A Convertible Notes and the Series 2026B Convertible Notes, respectively. In addition, Southern Company granted the initial purchasers of the Convertible Notes 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 in aggregate principal amount of the Series 2026A Convertible Notes and an additional $247.5 million in aggregate principal amount of the Series 2026B Convertible Notes. The offerings are expected to close on August 6, 2026, subject to customary closing conditions.