The Southern Company's SEC filings document the parent company's registered securities and the disclosure record for major utility subsidiaries, including Alabama Power Company, Georgia Power Company, Mississippi Power Company, Southern Power Company and Southern Company Gas. Combined Form 8-K reports cover material events for one or more registrants, while current reports identify common stock, junior subordinated notes, senior notes and corporate units listed on the New York Stock Exchange.
The filing record includes underwriting agreements and capital-markets transactions, amendments to current reports, proxy materials, board and committee matters, executive compensation disclosures and shareholder voting information. These filings also frame governance, capital structure and operating disclosures for an energy company with regulated electric utilities, natural gas distribution businesses, competitive generation, distributed energy solutions, fiber optics and telecommunications services.
The Southern Company completed an offering of 40,000,000 Corporate Units, following the full exercise of the underwriters’ over‑allotment option. Each unit has a $50 stated amount and includes a stock purchase contract, a 1/40 interest in Series 2025B Remarketable Senior Notes due 2030, and a 1/40 interest in Series 2025C Remarketable Senior Notes due 2033.
The stock purchase contracts obligate holders to buy common stock for $50 per contract no later than December 15, 2028. Total annual distributions on the Corporate Units are 7.125% of the stated amount, made up of 2.975% in quarterly contract adjustment payments and 4.15% in interest on the RSNs. The RSNs will be remarketed prior to settlement of the stock purchase contracts under the terms of the purchase contract and pledge agreement. The units were registered under the company’s shelf registration statement.
The Southern Company launched a primary offering of 35,000,000 2025 Series A Equity Units, each with a $50 stated amount, initially issued as Corporate Units. The underwriters have an option to buy up to 5,000,000 additional Corporate Units. The Company intends to list the Corporate Units on the NYSE under SOMN, subject to approval.
Each Corporate Unit includes a stock purchase contract and 1/40 interests in two series of Remarketable Senior Notes (due 2030 and 2033). Holders will purchase common stock on December 15, 2028 under the contract, with quarterly contract adjustment payments and RSN interest prior to settlement. The RSNs are expected to be remarketed in 2028, after which interest terms reset as described.
The Company plans to use proceeds to repurchase portions of its Series 2023A 3.875% Convertible Senior Notes and Series 2024A 4.50% Convertible Senior Notes, repay $407 million of short‑term debt as of October 31, 2025, address remaining 2023A notes at maturity, and fund a proposed par redemption of $1.25 billion of Series 2020B Junior Subordinated Notes, with any remainder for general corporate purposes.
The Southern Company launched a primary offering of 35,000,000 2025 Series A Equity Units, each with a $50 stated amount, initially issued as Corporate Units. The underwriters have an option to buy up to 5,000,000 additional Corporate Units. The Company intends to list the Corporate Units on the NYSE under SOMN, subject to approval.
Each Corporate Unit includes a stock purchase contract and 1/40 interests in two series of Remarketable Senior Notes (due 2030 and 2033). Holders will purchase common stock on December 15, 2028 under the contract, with quarterly contract adjustment payments and RSN interest prior to settlement. The RSNs are expected to be remarketed in 2028, after which interest terms reset as described.
The Company plans to use proceeds to repurchase portions of its Series 2023A 3.875% Convertible Senior Notes and Series 2024A 4.50% Convertible Senior Notes, repay $407 million of short‑term debt as of October 31, 2025, address remaining 2023A notes at maturity, and fund a proposed par redemption of $1.25 billion of Series 2020B Junior Subordinated Notes, with any remainder for general corporate purposes.
The Southern Company furnished an 8-K announcing a press release with earnings for the three-month and nine-month periods ended September 30, 2025. The exhibit presents GAAP results and non-GAAP measures of earnings and earnings per share, with reconciliations.
The non-GAAP presentation excludes charges and credits related to plants under construction, associated legal expenses net of insurance recoveries, and related tax impacts. It also excludes, for 2025, accelerated depreciation tied to repowering certain Southern Power wind facilities and disposition impacts from a multi‑use commercial facility sale at Alabama Power, plus nine‑month 2025 costs for extinguishment of debt. For 2024, it excludes an impairment loss related to discontinuing development of that facility. The press release (Exhibit 99) includes business segment information for Alabama Power, Georgia Power, Mississippi Power, Southern Power, and Southern Company Gas. The information is being furnished, not filed.
Southern Company and its utility subsidiaries reported higher results for the quarter ended September 30, 2025. Consolidated operating revenues rose to 7,823 million from 7,274 million a year earlier, driven by increases in retail and wholesale electric revenues and higher natural gas revenues.
Operating income improved to 2,594 million from 2,368 million, while consolidated net income attributable to Southern Company grew to 1,711 million from 1,535 million. Basic earnings per share increased to 1.55 from 1.40 on a slightly higher share count. For the first nine months of 2025, net cash provided from operating activities was 7,205 million, supporting heavy capital spending of 8,452 million on property additions and 10,269 million of new long‑term debt issuance. Key subsidiaries Alabama Power, Georgia Power, Mississippi Power, Southern Power, and Southern Company Gas all remained profitable over the nine‑month period.
The filing shows that William G. Smith Jr., a Director of The Southern Company (SO), acquired 830.6962 deferred stock units on 10/01/2025 under Southern's Deferred Compensation Plan. The units are payable in Common Stock upon termination and carry no exercise or expiration date.
Following the transaction, Mr. Smith beneficially owns 156,450.937 shares of Southern Company common stock. The acquisition was reported on Form 4 and signed by an attorney-in-fact on 10/02/2025.
Anthony F. Earley Jr., a director of Southern Company (SO), acquired 693.5654 deferred stock units under the company's Deferred Compensation Plan on 10/01/2025. The filing shows these units convert into 693.5654 shares of Southern Company common stock and were recorded at a unit price reference of $94.8. After the reported acquisition, Mr. Earley beneficially owns 29,390.905 shares directly. The filing clarifies the deferred units are payable in stock only upon termination and have no exercise or expiration date. The Form 4 was signed by an attorney-in-fact on 10/02/2025.
John D. Johns, a director of Southern Company (SO), acquired deferred stock units under the companys Deferred Compensation Plan on 10/01/2025. The filing reports 448.3122 Deferred Stock Units were granted at $0 cash cost and are payable in Southern Company common stock only upon termination; there is no exercise or expiration date. After the grant, Mr. Johnss reported beneficial ownership equals 84,980.6331 shares. The Form 4 was signed by an attorney-in-fact on 10/02/2025.
Janaki Akella, a Southern Company (SO) director, acquired 448.3122 Deferred Stock Units under Southern's Deferred Compensation Plan on 10/01/2025. The units are payable in Southern Company common stock only upon termination and have no exercise or expiration date. The filing shows a per-unit price of $94.80 and reports 19,237.0652 shares beneficially owned by the reporting person after the transaction. The Form 4 was signed by an attorney-in-fact on behalf of the reporting person on 10/02/2025.
Kristine L. Svinicki, a director of Southern Company (SO), acquired deferred stock units under the company's Deferred Compensation Plan on 10/01/2025. The filing shows an acquisition of 448.3122 deferred stock units that convert to 448.3122 shares of Southern Company common stock. After the reported transaction the reporting person directly beneficially owns 9,886.7401 shares. The units were acquired at a reported per‑share reference of $94.80 and are payable in stock only upon termination, with no exercise or expiration date disclosed. The Form 4 was signed on behalf of Ms. Svinicki on 10/02/2025.
David J. Grain, a director of Southern Company (SO), reported an acquisition of 817.5105 Deferred Stock Units on 10/01/2025. The units were granted under Southern's Deferred Compensation Plan and are payable in common stock only upon termination; there is no exercise or expiration date. The reported transaction increases Mr. Grain's total beneficial ownership of Southern common stock to 82,199.5392 shares (direct ownership). The Form 4 was signed by an attorney-in-fact on 10/02/2025.