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Planned insider sales
Notices (SEC Form 144) that executives and other insiders file before selling shares, and whether a sale was reported afterwards.
About this data
- What it is
- Before an executive, director or large owner sells restricted or control shares, they file a short notice with the SEC, called Form 144, saying how many shares they plan to sell, through which broker and roughly when. This feed lists those notices, and for each one shows whether a sale was reported afterwards on a Form 4 and how many days later.
- Who files it
- The person selling, or their broker, on the day the sale is placed. Electronic notices start in April 2023.
- How current
- We collect new notices throughout the day on SEC business days.
- Terms
- Form 144The notice an insider or other affiliate of a company files with the SEC before selling restricted or control shares, so the shares can be sold under Rule 144. The notice says how many shares, through which broker, and roughly when.10b5-1 planA Rule 10b5-1 trading plan lets an insider set up future sales in advance, on a schedule or at set prices, at a time when they do not hold inside information. A notice that gives a plan adoption date says the sale is made under such a plan.
- Worth knowing
- A notice is a plan, not a sale: the person may sell fewer shares, later, or not at all. The value is the one the filer typed, at a price they chose, not what the shares sell for. Many sales are routine, made to diversify or pay taxes, or under a 10b5-1 plan set up months earlier. A blank in the last column does not mean no sale: the person may not have to file a Form 4 (an ordinary affiliate does not), the sale may be recent, or the Form 4 may name a different spelling of the person. We match by the filer's number first and by name second. Information, not investment advice.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Form 144 notices per day, last 30 days
All notices Notices that give a 10b5-1 plan
By the day each notice was filed. A notice is a plan to sell, not a sale.
Latest notices of planned insider sales
Showing: ticker SO
| Filed | Insider | Company | Shares to sellA notice is a plan, not a sale. The person may sell fewer shares, sell later, or not sell at all, and the number of shares is what they expect to sell on the day they file. | ValueThe aggregate market value the filer typed on the notice: the shares times a price the filer chose. It is not what the shares will sell for. | PlanA Rule 10b5-1 trading plan lets an insider set up future sales in advance, on a schedule or at set prices, at a time when they do not hold inside information. A notice that gives a plan adoption date says the sale is made under such a plan. | Expected sale | Sale reportedInsiders who are officers, directors or hold more than 10% report their sales on a Form 4, within two business days. We look for the first Form 4 with an open-market sale by the same person in the same company within 90 days of the notice, and show how many days after the notice it was filed. A blank means we found none: the person may not have sold, may not have to file a Form 4, or the Form 4 may be one we do not have. | Notice |
|---|---|---|---|---|---|---|---|---|
| Nov 6, 2026 | Sterling Spainhour Officer | SO Southern Company | 3,333 | $306.0K | 10b5-1 | Nov 6, 2026 | Form 4 ↗ 3 days later · 3,333 shares | Form 144 ↗ |
| Nov 2, 2026 | Matthew Kim OFFICER | SO Southern Company | 100 | $9,339 | 10b5-1 | Nov 2, 2026 | Form 4 ↗ 1 day later · 100 shares | Form 144 ↗ |
| Oct 1, 2026 | Matthew M. Kim OFFICER | SO Southern Company | 100 | $8,273 | 10b5-1 | Oct 1, 2026 | Form 4 ↗ 33 days later · 100 shares | Form 144 ↗ |
| Sep 3, 2026 | Peter P Sena III Officer | SO Southern Company | 4,266 | $377.9K | 10b5-1 | Sep 3, 2026 | Form 4 ↗ 1 day later · 4,266 shares | Form 144 ↗ |
| Sep 3, 2026 | Matthew Kim Officer | SO Southern Company | 1,400 | $124.4K | — | Sep 3, 2026 | Form 4 ↗ 1 day later · 1,400 shares | Form 144 ↗ |
| Sep 1, 2026 | Matthew Kim OFFICER | SO Southern Company | 100 | $8,845 | 10b5-1 | Sep 1, 2026 | Form 4 ↗ 2 days later · 100 shares | Form 144 ↗ |
| Aug 6, 2026 | Sterling Spainhour OFFICER | SO Southern Company | 3,333 | $313.4K | 10b5-1 | Aug 6, 2026 | Form 4 ↗ 1 day later · 3,333 shares | Form 144 ↗ |
| Aug 3, 2026 | Matthew Kim Officer | SO Southern Company | 100 | $9,428 | 10b5-1 | Aug 3, 2026 | Form 4 ↗ 1 day later · 100 shares | Form 144 ↗ |
| Jul 1, 2026 | Matthew Kim OFFICER | SO Southern Company | 100 | $9,577 | 10b5-1 | Jul 1, 2026 | Form 4 ↗ 1 day later · 100 shares | Form 144 ↗ |
| Jun 1, 2026 | Matthew M. Kim Officer | SO Southern Company | 100 | $9,116 | 10b5-1 | Jun 1, 2026 | Form 4 ↗ same day · 100 shares | Form 144 ↗ |
| May 1, 2026 | Matthew Kim Officer | SO Southern Company | 100 | $9,657 | 10b5-1 | May 1, 2026 | Form 4 ↗ 3 days later · 100 shares | Form 144 ↗ |
| Mar 30, 2026 | Kimberly Greene OFFICER | SO Southern Company | 25,000 | $2.4M | 10b5-1 | Mar 30, 2026 | Form 4 ↗ 1 day later · 25,000 shares | Form 144 ↗ |
| Mar 19, 2026 | Christopher Cummiskey Officer | SO Southern Company | 6,669 | $643.9K | 10b5-1 | Mar 19, 2026 | Form 4 ↗ same day · 6,669 shares | Form 144 ↗ |
| Mar 18, 2026 | Stanley Connally Officer | SO Southern Company | 12,500 | $1.2M | 10b5-1 | Mar 18, 2026 | Form 4 ↗ 1 day later · 12,500 shares | Form 144 ↗ |
| Feb 24, 2026 | Matthew M. Kim Officer | SO Southern Company | 5,123 | $487.5K | 10b5-1 | Feb 24, 2026 | Form 4 ↗ 1 day later · 5,123 shares | Form 144 ↗ |
| Sep 30, 2025 | Bryan Anderson OFFICER | SO Southern Company | 6,206 | $582.3K | 10b5-1 | Sep 30, 2025 | Form 4 ↗ 1 day later · 6,206 shares | Form 144 ↗ |
| Aug 11, 2025 | Sterling A. Spainhour Jr. Officer | SO Southern Company | 2,380 | $226.1K | 10b5-1 | Aug 11, 2025 | Form 4 ↗ 1 day later · 2,380 shares | Form 144 ↗ |
| Jul 22, 2025 | Greene Kimberly S, Officer | SO Southern Company | 13,158 | $1.3M | 10b5-1 | Jul 21, 2025 | Form 4 ↗ same day · 13,158 shares | Form 144 ↗ |
| Jun 11, 2025 | Martin Bernard Davis Former Officer | SO Southern Company | 30,000 | $2.7M | — | Jun 11, 2025 | — | Form 144 ↗ |
| Jun 3, 2025 | Martin Bernard Davis Officer | SO Southern Company | 1,115 | $100.3K | 10b5-1 | Jun 3, 2025 | — | Form 144 ↗ |
| May 23, 2025 | Christopher Cummiskey Officer | SO Southern Company | 12,335 | $1.1M | 10b5-1 | May 23, 2025 | Form 4 ↗ 4 days later · 12,335 shares | Form 144 ↗ |
| Mar 31, 2025 | Stan W. Connally Officer | SO Southern Company | 12,500 | $1.2M | 10b5-1 | Mar 31, 2025 | Form 4 ↗ 1 day later · 12,500 shares | Form 144 ↗ |
| Mar 10, 2025 | Greene Kimberly S, Officer | SO Southern Company | 32,190 | $3.0M | 10b5-1 | Mar 10, 2025 | Form 4 ↗ 1 day later · 32,190 shares | Form 144 ↗ |
| Mar 3, 2025 | Martin Bernard Davis Officer | SO Southern Company | 1,125 | $100.8K | 10b5-1 | Mar 3, 2025 | Form 4 ↗ 1 day later · 1,125 shares | Form 144 ↗ |
| Feb 25, 2025 | Christopher C. Womack Officer | SO Southern Company | 26,000 | $2.3M | 10b5-1 | Feb 25, 2025 | Form 4 ↗ 1 day later · 1,593 shares | Form 144 ↗ |
| Feb 19, 2025 | Christopher Cummiskey Officer | SO Southern Company | 944 | $81.2K | 10b5-1 | Feb 19, 2025 | Form 4 ↗ 1 day later · 944 shares | Form 144 ↗ |
| Feb 11, 2025 | James Jeffrey Peoples Officer | SO Southern Company | 14,540 | $1.3M | 10b5-1 | Feb 11, 2025 | Form 4 ↗ 1 day later · 14,540 shares | Form 144 ↗ |
| Feb 4, 2025 | Christopher Cummiskey Officer | SO Southern Company | 837 | $69.7K | 10b5-1 | Feb 4, 2025 | Form 4 ↗ 1 day later · 837 shares | Form 144 ↗ |
| Dec 5, 2024 | Christopher C. Womack Officer | SO Southern Company | 14,000 | $1.2M | 10b5-1 | Dec 5, 2024 | Form 4 ↗ 1 day later · 14,000 shares | Form 144 ↗ |
| Dec 5, 2024 | Martin Bernard Davis Officer | SO Southern Company | 1,170 | $100.5K | 10b5-1 | Dec 5, 2024 | Form 4 ↗ 1 day later · 1,170 shares | Form 144 ↗ |
| Nov 4, 2024 | Sterling A. Spainhour Jr. Officer | SO Southern Company | 793 | $70.2K | 10b5-1 | Nov 4, 2024 | Form 4 ↗ 1 day later · 793 shares | Form 144 ↗ |
| Oct 4, 2024 | Kerr, II James Y Officer | SO Southern Company | 30,000 | $2.7M | 10b5-1 | Oct 4, 2024 | Form 4 ↗ 4 days later · 30,000 shares | Form 144 ↗ |
| Sep 6, 2024 | Bryan D. Anderson Officer | SO Southern Company | 6,565 | $587.8K | 10b5-1 | Sep 6, 2024 | — | Form 144 ↗ |
| Sep 3, 2024 | Stephen E. Kuczynski Officer | SO Southern Company | 24,000 | $2.1M | — | Sep 3, 2024 | — | Form 144 ↗ |
| Aug 5, 2024 | Sterling A. Spainhour Jr. Officer | SO Southern Company | 2,380 | $211.8K | 10b5-1 | Aug 5, 2024 | — | Form 144 ↗ |
| Jul 30, 2024 | The Ernest J. Moniz 2018 Trust Director | SO Southern Company | 8,948 | $742.8K | — | Jul 30, 2024 | — | Form 144 ↗ |
| Jul 16, 2024 | The Ernest J. Moniz 2018 Trust Director | SO Southern Company | 10,000 | $808.8K | — | Jul 16, 2024 | — | Form 144 ↗ |
| Jul 5, 2024 | Anthony L. Wilson Officer | SO Southern Company | 6,900 | $537.0K | 10b5-1 | Jul 5, 2024 | — | Form 144 ↗ |
| Jul 3, 2024 | Sloane N. Drake Officer | SO Southern Company | 12,000 | $931.3K | 10b5-1 | Jul 3, 2024 | — | Form 144 ↗ |
| Mar 11, 2024 | Stephen E. Kuczynski Officer | SO Southern Company | 5,000 | $344.6K | 10b5-1 | Mar 11, 2024 | — | Form 144 ↗ |
| Feb 15, 2024 | Christopher Cummiskey Officer | SO Southern Company | 13,887 | $932.9K | 10b5-1 | Feb 15, 2024 | — | Form 144 ↗ |
| Feb 12, 2024 | Stephen E. Kuczynski Officer | SO Southern Company | 5,000 | $334.7K | 10b5-1 | Feb 12, 2024 | — | Form 144 ↗ |
| Feb 12, 2024 | Christopher Cummiskey Officer | SO Southern Company | 883 | $59.1K | 10b5-1 | Feb 12, 2024 | — | Form 144 ↗ |
| Feb 6, 2024 | Christopher Cummiskey Officer | SO Southern Company | 889 | $59.6K | 10b5-1 | Feb 6, 2024 | — | Form 144 ↗ |
| Jan 17, 2024 | David P. Poroch Officer | SO Southern Company | 10,099 | $706.5K | 10b5-1 | Jan 17, 2024 | — | Form 144 ↗ |
| Jan 10, 2024 | Stephen E. Kuczynski Officer | SO Southern Company | 5,000 | $359.9K | 10b5-1 | Jan 10, 2024 | — | Form 144 ↗ |
| Dec 11, 2023 | Stephen E. Kuczynski Officer | SO Southern Company | 5,000 | $356.1K | 10b5-1 | Dec 11, 2023 | — | Form 144 ↗ |
| Nov 16, 2023 | David P. Poroch Officer | SO Southern Company | 10,000 | $693.9K | 10b5-1 | Nov 16, 2023 | — | Form 144 ↗ |
| Nov 13, 2023 | Stephen E. Kuczynski Officer | SO Southern Company | 5,000 | $341.9K | 10b5-1 | Nov 10, 2023 | — | Form 144 ↗ |
| Oct 10, 2023 | Stephen E. Kuczynski Officer | SO Southern Company | 5,000 | $330.0K | 10b5-1 | Oct 10, 2023 | — | Form 144 ↗ |
The newest 50 items, most recent first. Every row links to the notice on the SEC's site, and to the Form 4 when we found one. Updated Nov 15, 2026, 6:47 PM EST.
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