SOUTHERN CO Insider Trading Activity
Every SEC Form 4 insider transaction reported for SOUTHERN CO (SO), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are SO insiders buying or selling?
In the last 12 months, SOUTHERN CO insiders reported 0 open-market purchases ($0) and 13 sales ($5.6M) — net selling of $5.6M. Since August 2018, Trabud has recorded 175 Form 4 filings for SO: 4 buys ($454.9K) and 171 sells ($340.5M).
Source: SEC EDGAR Form 4
What stands out
- No SOUTHERN CO insider made an open-market purchase in the last 12 months; the 13 reported open-market sales totaled $5.6M.
Key Statistics (August 2018 – Oct 1, 2026)
Total Form 4 filings
175
SEC EDGAR
Insider filers
25
Insider buys (4)
$454.9K
Insider sells (171)
$340.5M
Insider sentiment
Net sellingNet insider flow of $340.0M in net selling since August 2018, and $5.6M in net selling over the last 12 months.
Recent SO insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | Matthew M. Kim | Comptroller | Sale | 100 | $82.73 | $8.3K | SEC ↗ |
| Sep 4, 2026 | Matthew M. Kim | Comptroller | Sale | 1.4K | $88.87 | $124.4K | SEC ↗ |
| Sep 4, 2026 | Peter P Sena III | Chairman,President & CEO, SNC | Sale | 4.3K | $88.59 | $377.9K | SEC ↗ |
| Sep 3, 2026 | Matthew M. Kim | Comptroller | Sale | 100 | $88.45 | $8.8K | SEC ↗ |
| Aug 7, 2026 | Sterling A Spainhour Jr. | EVP & CLO | Sale | 3.3K | $94.02 | $313.4K | SEC ↗ |
| Aug 4, 2026 | Matthew M. Kim | Comptroller | Sale | 100 | $94.28 | $9.4K | SEC ↗ |
| Jul 2, 2026 | Matthew M. Kim | Comptroller | Sale | 100 | $95.77 | $9.6K | SEC ↗ |
| Jun 1, 2026 | Matthew M. Kim | Comptroller | Sale | 100 | $91.16 | $9.1K | SEC ↗ |
| May 4, 2026 | Matthew M. Kim | Comptroller | Sale | 100 | $96.57 | $9.7K | SEC ↗ |
| Mar 31, 2026 | Kimberly S, Greene | Chairman, President & CEO, GPC | Sale | 25.0K | $96.67 | $2.4M | SEC ↗ |
| Mar 19, 2026 | Christopher Cummiskey | EVP | Sale | 6.7K | $96.55 | $643.9K | SEC ↗ |
| Mar 19, 2026 | Stan W Connally | EVP & COO | Sale | 12.5K | $97.13 | $1.2M | SEC ↗ |
| Feb 25, 2026 | Matthew M. Kim | Comptroller | Sale | 5.1K | $95.15 | $487.5K | SEC ↗ |
| Oct 1, 2025 | Bryan D Anderson | EVP | Sale | 6.2K | $93.83 | $582.3K | SEC ↗ |
| Aug 12, 2025 | Sterling A Spainhour Jr. | EVP & CLO | Sale | 2.4K | $95.02 | $226.1K | SEC ↗ |
| Jul 22, 2025 | Kimberly S, Greene | Chairman, President & CEO, GPC | Sale | 13.2K | $95.00 | $1.3M | SEC ↗ |
| May 27, 2025 | Christopher Cummiskey | EVP | Sale | 12.3K | $89.54 | $1.1M | SEC ↗ |
| Apr 1, 2025 | Stan W Connally | EVP & COO | Sale | 12.5K | $92.24 | $1.2M | SEC ↗ |
| Mar 11, 2025 | Kimberly S, Greene | Chairman, President & CEO, GPC | Sale | 32.2K | $93.12 | $3.0M | SEC ↗ |
| Mar 4, 2025 | Martin Bernard Davis | EVP & CIO | Sale | 1.1K | $89.61 | $100.8K | SEC ↗ |
| Mar 4, 2025 | Christopher C Womack | Chairman, President & CEO | Sale | 24.4K | $90.13 | $2.2M | SEC ↗ |
| Feb 26, 2025 | Christopher C Womack | Chairman, President & CEO | Sale | 1.6K | $90.00 | $143.4K | SEC ↗ |
| Feb 20, 2025 | Christopher Cummiskey | EVP | Sale | 944 | $86.00 | $81.2K | SEC ↗ |
| Feb 12, 2025 | James Jeffrey Peoples | Chairman, President & CEO, APC | Sale | 14.5K | $86.00 | $1.3M | SEC ↗ |
| Feb 5, 2025 | Christopher Cummiskey | EVP & CCO | Sale | 837 | $83.32 | $69.7K | SEC ↗ |
Showing the 25 most recent of 175 Form 4 filings for SOUTHERN CO.
Most active SO insiders
- Stephen E Kuczynski54 filings
- Christopher Cummiskey18 filings
- Christopher C Womack13 filings
- Kimberly S, Greene12 filings
- James Y Kerr, II11 filings
Ask anything about SO insider activity
Use Trabud's AI agent to query SOUTHERN CO's Form 4 history in plain English — "Show me SO CEO purchases this year" or compare it against any other ticker.
Open the AI agentSO insider trading FAQ
Are SOUTHERN CO insiders buying or selling?
In the last 12 months, SOUTHERN CO insiders reported 0 open-market purchases ($0) and 13 sales ($5.6M) — net selling of $5.6M. Since August 2018, Trabud has recorded 175 Form 4 filings for SO: 4 buys ($454.9K) and 171 sells ($340.5M). Over the full record that is net selling of $340.0M.
How many insiders trade SO stock?
25 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for SOUTHERN CO. The most recent filing was accepted on Oct 1, 2026.
Where does Trabud get SO insider trading data?
All SO insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.