LYTIR

Company · SO

The Southern Company

Name as listed on its exchange; filed with the SEC as SOUTHERN CO.

Nasdaq's symbol directory lists SO on the New York Stock Exchange as “Southern Company (The) Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 12 occasions ($2.7M); 9 planned-sale notices; 1 congressional trade disclosure; 6 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC · Appeared in No. 40, No. 17, No. 12

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $2.7M in total.Mar: Insider sales $1.9MMay: Insider sales $10KJun: Insider sales $9KJul: Insider sales $10KAug: Insider sales $323KSep: Insider sales $511KOct: Insider sales $8KNov: Insider sales $9KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $2.7M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Stan W. Connally, EVP & COO sold on 1 day all under a 10b5-1 plan latest Mar 18, 2026 sold $1.2M
  2. Cummiskey Christopher, EVP sold on 1 day latest Mar 19, 2026 sold $644K
  3. Sena Peter P III, Chairman,President & CEO, SNC sold on 1 day all under a 10b5-1 plan latest Sep 3, 2026 sold $378K
  4. Spainhour Sterling A Jr., EVP & CLO sold on 1 day all under a 10b5-1 plan latest Aug 6, 2026 sold $313K
  5. Kim Matthew M., Comptroller sold on 8 days 7 of them under a 10b5-1 plan latest Nov 2, 2026 sold $189K
Every trade (12)
  1. SELLKim Matthew M., Comptroller sold Nov 2, 2026 100 shares 10b5-1 plan (scheduled) filing $9K
  2. SELLKim Matthew M., Comptroller sold Oct 1, 2026 100 shares 10b5-1 plan (scheduled) filing $8K
  3. SELLSena Peter P III, Chairman,President & CEO, SNC sold Sep 3, 2026 4,266 shares 10b5-1 plan (scheduled) filing $378K
  4. SELLKim Matthew M., Comptroller sold Sep 3, 2026 1,400 shares filing $124K
  5. SELLKim Matthew M., Comptroller sold Sep 1, 2026 100 shares 10b5-1 plan (scheduled) filing $9K
  6. SELLSpainhour Sterling A Jr., EVP & CLO sold Aug 6, 2026 3,333 shares 10b5-1 plan (scheduled) filing $313K
  7. SELLKim Matthew M., Comptroller sold Aug 3, 2026 100 shares 10b5-1 plan (scheduled) filing $9K
  8. SELLKim Matthew M., Comptroller sold Jul 1, 2026 100 shares 10b5-1 plan (scheduled) filing $10K
  9. SELLKim Matthew M., Comptroller sold Jun 1, 2026 100 shares 10b5-1 plan (scheduled) filing $9K
  10. SELLKim Matthew M., Comptroller sold May 1, 2026 100 shares 10b5-1 plan (scheduled) filing $10K
  11. SELLCummiskey Christopher, EVP sold Mar 19, 2026 6,669 shares filing $644K
  12. SELLStan W. Connally, EVP & COO sold Mar 18, 2026 12,500 shares 10b5-1 plan (scheduled) filing $1.2M

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. Sterling Spainhour filed Nov 6, 2026 Officer 3,333 shares planned sale date 11/06/2026 filing $306K
  2. MATTHEW KIM filed Nov 2, 2026 OFFICER 100 shares planned sale date 11/02/2026 filing $9K
  3. Matthew M. Kim filed Oct 1, 2026 OFFICER 100 shares planned sale date 10/01/2026 filing $8K
  4. PETER P SENA III filed Sep 3, 2026 Officer 4,266 shares planned sale date 09/03/2026 filing $378K
  5. MATTHEW KIM filed Sep 3, 2026 Officer 1,400 shares planned sale date 09/03/2026 filing $124K
  6. MATTHEW KIM filed Sep 1, 2026 OFFICER 100 shares planned sale date 09/01/2026 filing $9K
  7. STERLING SPAINHOUR filed Aug 6, 2026 OFFICER 3,333 shares planned sale date 08/06/2026 filing $313K
  8. Matthew Kim filed Aug 3, 2026 Officer 100 shares planned sale date 08/03/2026 filing $9K
  9. MATTHEW KIM filed Jul 1, 2026 OFFICER 100 shares planned sale date 07/01/2026 filing $10K

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Jared Moskowitz (D-FL23): Purchase Dec 2, 2025 reported Jan 16, 2026 one of 8 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition filing Nov 5, 2026
  2. Amendments to articles or bylaws; change in fiscal year; Other events filing Oct 22, 2026
  3. Creation of a direct financial obligation; Unregistered sales of equity securities filing Aug 6, 2026
  4. Other events filing Aug 4, 2026
  5. Other events filing Aug 3, 2026
  6. Results of operations and financial condition filing Jul 30, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.