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SOUTHERN CO (SO) SEC Filings, Jul-Aug 2026

SO NYSE
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SOUTHERN CO executive Sterling A. Spainhour Jr., EVP & CLO, reported selling 3,333 shares of Southern Company Common Stock on 2026-08-06 at $94.02 per share in an open-market or private transaction. The transaction was made under a Rule 10b5-1 trading plan, leaving 35,219 shares held directly plus 951.3316 shares held indirectly through a 401(k).

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The Southern Company issued two privately placed series of convertible senior notes: $833,750,000 of 2.125% Series 2026A Convertible Senior Notes due December 15, 2027 and $1,897,500,000 of 3.50% Series 2026B Convertible Senior Notes due September 15, 2029, under its Senior Note Indenture with U.S. Bank Trust Company as trustee.

Both series are direct, unsecured and unsubordinated obligations, effectively subordinated to secured debt, and are not redeemable at the Company’s option. Holders may convert before final conversion periods only if stock-price or trading-price conditions are met or upon specified corporate events; later in each term, conversion is permitted at any time. The initial conversion rates are 9.5641 shares per $1,000 principal for the 2026A notes (initial conversion price $104.56) and 8.4389 shares per $1,000 for the 2026B notes (initial conversion price $118.50), with adjustments for certain events and potential conversion-rate increases upon a Make-Whole Fundamental Change.

Conversions will be settled in cash up to principal and, at the Company’s election, in cash, stock or a combination for any excess obligation. Upon a Fundamental Change (other than an Excluded Fundamental Change), holders can require repurchase at 100% of principal plus accrued interest, and Events of Default allow acceleration. The notes were sold to initial purchasers under Section 4(a)(2) of the Securities Act for resale under Rule 144A. The related conversion shares are unregistered; initially, up to 8,970,816 shares may be issued for the 2026A notes and up to 20,416,341 shares for the 2026B notes, based on an initial maximum conversion rate of 10.7596 shares per $1,000 principal.

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Southern Company reported that Comptroller Matthew M. Kim sold 100 shares of Southern Company Common Stock on 2026-08-03 at $94.28 per share in an open market or private transaction pursuant to a Rule 10b5-1 trading plan.

After the sale he held 6,488 shares directly and 1,222.207 shares indirectly through a 401(k) plan.

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Southern Company has priced private offerings to qualified institutional buyers of $725 million of Series 2026A 2.125% Convertible Senior Notes due December 15, 2027 and $1.65 billion of Series 2026B 3.50% Convertible Senior Notes due September 15, 2029, with closings expected on August 6, 2026, subject to customary conditions. The company also granted the initial purchasers 13-day options for up to an additional $108.75 million of 2026A notes and $247.5 million of 2026B notes.

The 2026A notes carry an initial conversion rate of 9.5641 common shares per $1,000 principal amount (a conversion price of about $104.56 per share, a 12.5% premium), while the 2026B notes convert at 8.4389 shares per $1,000 (about $118.50 per share, a 27.5% premium). These rates are subject to adjustment, and the notes are initially convertible only upon specified events, then freely convertible closer to maturity.

Southern Company expects net proceeds of about $721 million from the 2026A offering (or $829 million if the option is fully exercised) and about $1.63 billion from the 2026B offering (or $1.88 billion with the option fully exercised). It plans to use approximately $403 million of these proceeds to repurchase about $369 million aggregate principal amount of its outstanding Series 2024A 4.50% Convertible Senior Notes due June 15, 2027, with the remaining proceeds earmarked to repay short-term debt and for other general corporate purposes.

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The Southern Company is the issuer of common stock covered by a notice of proposed sale. The filing relates to 100 shares of common stock, associated with a Performance Stock Vest for compensatory payment dated 02/27/2024, with Merrill Lynch listed in the securities information section.

The seller, Matthew Kim, is also reported to have sold 100 shares of common stock on 06/01/2026 and another 100 shares on 07/01/2026. The common stock is listed on the NYSE.

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Southern Company plans private offerings of $650 million aggregate principal amount of convertible senior notes due December 15, 2027 and $1.5 billion aggregate principal amount of convertible senior notes due September 15, 2029 to persons reasonably believed to be qualified institutional buyers.

The senior unsecured notes pay interest semiannually and are convertible into cash and, at Southern Company’s election, cash and/or common stock, subject to specified convertibility periods. Southern Company intends to use a portion of the net proceeds to repurchase portions of its 4.50% Series 2024A and 3.25% Series 2025A convertible senior notes and to repay short-term debt and for other general corporate purposes.

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Southern Company reported stronger results for the quarter and six months ended June 30, 2026. Second-quarter net income attributable to common shareholders was $1.2 billion, or $1.03 per share, up from $880 million, or $0.80 per share, a year earlier. For the first half of 2026, net income was $2.5 billion, or $2.24 per share, compared with $2.2 billion, or $2.01 per share, in 2025.

Excluding items such as accelerated depreciation from wind facility repowering, debt extinguishment costs, Nicor Gas investment disallowances, tax adjustments, and a state tax refund, non-GAAP EPS was $1.13 in Q2 2026 versus $0.92, and $2.46 year-to-date versus $2.15. Year-to-date operating revenues rose to $15.4 billion from $14.7 billion, driven by higher wholesale revenues, natural gas revenues, and modest retail growth.

Traditional electric operating companies and Southern Company Gas posted higher earnings, while Southern Power recorded a loss. The company highlights significant ongoing repowering-related depreciation charges at Southern Power and notes projected remaining pre-tax charges of approximately $205 million in 2026 and $120 million in 2027.

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Southern Company’s comptroller, Matthew M. Kim, reported a small open-market sale of common stock. On 2026-07-01, he sold 100 shares of Southern Company Common Stock at $95.77 per share.

After this sale, Kim directly holds 6,588 shares and indirectly holds 1,212.1903 shares through a 401(k) plan. The filing shows no option exercises or derivative positions, indicating this was a straightforward, modest open-market sale alongside ongoing retirement-plan holdings.

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Southern Company director Anthony F. Earley Jr. reported routine compensation-related awards rather than open-market trades. On July 1, 2026, he acquired 473.0866 deferred stock units tied to Southern Company common stock, bringing his deferred stock unit balance to 31,592.0786 units. He also received 229.9727 phantom stock units, increasing his phantom unit holdings to 858.9727 units.

Footnotes explain these are quarterly board retainers deferred under company plans. Deferred stock units will be settled in shares of common stock after his board service ends, while phantom stock units will be settled in cash based on the value of one Southern Company share. Both types of units also receive additional credits for reinvested dividends.

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FAQ

How many SOUTHERN CO (SO) SEC filings are available on StockTitan?

StockTitan tracks 178 SEC filings for SOUTHERN CO (SO), including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and Form 4 insider trading disclosures. Each filing includes AI-generated summaries, impact scoring, and sentiment analysis.

When was the most recent SEC filing for SOUTHERN CO (SO)?

The most recent SEC filing for SOUTHERN CO (SO) was filed on August 7, 2026.