Welcome to our dedicated page for Southern SEC filings (Ticker: SO), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Southern Company (SO) files a broad range of documents with the U.S. Securities and Exchange Commission that provide detailed insight into its operations, capital structure and regulatory environment. As a holding company for electric utilities, natural gas distribution companies and related energy businesses, its SEC filings cover topics such as rate regulation, generation resource planning, financing transactions and corporate governance. On this page, investors can review these filings alongside AI-generated summaries that explain key points in accessible language.
Among the most informative documents are Form 10-K annual reports and Form 10-Q quarterly reports, which describe Southern Company’s electric operating companies in three states, its natural gas distribution companies in four states and its competitive and infrastructure businesses. These filings also discuss regulatory frameworks, integrated resource plans and risk factors relevant to nuclear generation, natural gas supply, environmental compliance and capital spending.
Form 8-K current reports are especially important for tracking material events. Recent 8-Ks describe settlement agreements between Georgia Power and the Georgia Public Service Commission’s Public Interest Advocacy Staff regarding certification of thousands of megawatts of new resources and multi-year rate plans. Other 8-Ks detail the issuance of equity units, the structure of stock purchase contracts and remarketable senior notes, and changes in senior leadership. AI tools on this page highlight the sections that address projected capital investments, rate mechanisms and financing terms.
Investors interested in Southern Company’s capital structure can also examine filings related to its various series of junior subordinated notes and other securities listed on the New York Stock Exchange. While insider transaction reports such as Form 4 are not detailed in the provided materials, this page is designed to surface such filings when available and summarize reported insider purchases or sales. By combining real-time EDGAR updates with AI-powered analysis, the SEC filings page helps users quickly locate 10-Ks, 10-Qs, 8-Ks and other key documents for The Southern Company and understand their implications for the company’s utilities and energy businesses.
The Southern Company ownership filing shows JPMorgan Chase & Co. beneficially owns 41,304,187 shares of Common Stock, representing 3.7% of the class as reported.
The filing states JPMorgan has sole voting power for 33,147,611 shares, shared voting power for 714,544 shares, sole dispositive power for 40,679,659 shares and shared dispositive power for 616,228. Several JPMorgan affiliates and trusts are identified as holders of the reported position.
Southern Company director Anthony F. Earley Jr. reported a charitable stock gift. On the reported date, he disposed of 15,000 shares of Southern Company common stock as a bona fide gift, with no sale proceeds. The footnote explains this was a charitable donation to a donor advised fund. After the donation, his directly owned position stood at 9,261 shares, indicating he retains a meaningful, but reduced, personal stake in the company.
Southern Company Comptroller Matthew M. Kim reported an open-market sale of Southern Company common stock. He sold 5,123 shares at a price of $95.15 per share, leaving him with 6,888 shares of direct ownership. In addition, he reported indirect ownership of 1,203.0238 shares held through a 401(k) plan, reflecting his retirement-plan holdings rather than a new trade.
SOUTHERN CO. reported Form 144 transactions involving the disposition of common stock tied to compensatory awards and one open-market purchase. The filing lists multiple Restricted Stock Unit and Performance Stock Unit vests dated between 02/13/2024 and 02/11/2026, including example vests of 844 and 744 shares and an open-market purchase of 78 shares on 06/02/2025. These entries reflect planned or completed transfers under compensatory arrangements.
Southern Company reported lower GAAP results but stronger underlying performance for the three and twelve months ended December 31, 2025. Fourth-quarter earnings were $416 million, or $0.38 per share, down from $534 million, or $0.49 per share, a year earlier. Full-year 2025 earnings were $4.3 billion, or $3.94 per share, compared with $4.4 billion, or $4.02 per share, in 2024.
Excluding items such as losses on plants under construction, accelerated depreciation from wind repowering, debt extinguishment costs, an estimated Nicor Gas capital investment loss, and tax adjustments, non-GAAP earnings rose. Adjusted EPS was $0.55 in the fourth quarter, up from $0.50, and $4.30 for 2025, up from $4.05. Operating revenues increased to $6.98 billion in the quarter and $29.55 billion for the year, up 10.1% and 10.6%, driven by higher retail and wholesale electric revenues and natural gas revenues.
Segment results were mixed. Traditional electric operating companies grew full-year net income available to common, including notable improvement at Georgia Power, while Southern Power and Southern Company Gas saw weaker reported net income. Retail kilowatt-hour sales rose 1.6% for 2025 with customer growth at the regulated utilities.
Southern Company and its utility subsidiaries file an annual report describing their regulated electric and natural gas businesses across the Southeast and Midwest, including Alabama Power, Georgia Power, Mississippi Power, Southern Power, and Southern Company Gas.
Management outlines large capital plans, with a 2026 construction program of about $15.9 billion, including $12.6 billion for the Southern Company electric system, focused on new generation, transmission, distribution, and environmental compliance. Georgia Power alone plans roughly $3.6 billion for new generation and storage tied to prior IRP approvals.
The report highlights rapidly growing load from data centers and other large customers, leading regulators to certify about 13 GW of resources, mostly new generation and battery storage. Southern Company Gas serves about 4.4 million customers over 77,900 miles of pipe, while the traditional electric operating companies serve roughly 4.6 million retail power customers. The group employs about 29,800 people and emphasizes regulated cost recovery mechanisms, extensive environmental and nuclear oversight, and forward-looking risk factors affecting future earnings and capital needs.
WOMACK CHRISTOPHER C reported multiple insider transaction types in a Form 4 filing for SO. The filing lists transactions totaling 293,349 shares at a weighted average price of $90.86 per share. Following the reported transactions, holdings were 26,604 shares.
The Southern Company filed an amended current report to update governance information related to a recently elected director. The filing reports that, effective February 16, 2026, the Board appointed Mr. John M. Turner, Jr. to the Finance Committee and the Operations, Environmental and Safety Committee. These appointments follow his earlier election to the Board, which had been disclosed previously before committee assignments were determined.
Kim Matthew M. reported multiple insider transaction types in a Form 4 filing for SO. The filing lists transactions totaling 6,464 shares at a weighted average price of $90.86 per share. Following the reported transactions, holdings were 14,025 shares.
Cherry Pedro P. reported multiple insider transaction types in a Form 4 filing for SO. The filing lists transactions totaling 14,933 shares at a weighted average price of $90.86 per share. Following the reported transactions, holdings were 788 shares.