SOUTHERN CO (SOJD) SEC Filings

SOUTHERN CO (SO) has an officer, Matthew Kim, filing a Rule 144 notice to sell up to 1,400 shares of Southern Company common stock through Merrill Lynch on the NYSE. The shares were acquired via vested performance stock and restricted stock unit awards treated as compensatory payments.

The filing also lists recent sales by Matthew Kim totaling 300 shares of common stock over the past three months in three separate 100‑share transactions.

SOUTHERN CO (SO) reports that Comptroller Matthew M. Kim sold 100 shares of Southern Company Common Stock on September 1, 2026, at $88.45 per share in an open-market or private transaction under a Rule 10b5-1 trading plan. After this sale, he holds 6,399.55 shares directly and 1,222.207 shares indirectly through a 401(k).

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).

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.

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.

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.

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.

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.