Company profile
Southern Co Insider Trading
SOEvery SEC Form 4 insider trading filing for Southern Co (SO) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- NYSE
- Sector
- Electric Services
- CIK
- 0000092122
- Filings
- 372
- Insiders
- 35
- Last filing
- 2026-09-03
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $124K across 1 transaction.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Southern Co insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $29.6M.
90 day insight
Over the last 90 days, Southern Co insiders bought $653K (14 transactions) and sold $155K (2 transactions).
- Most active insider: Peter P Sena III with 4 transactions totaling $409K.
- Largest single sale: $378K by Peter P Sena III on Sep 3, 2026.
- 71% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 3, 2026 | Matthew M. Kim | SO | Sale | 1,400 | $88.87 | $124K |
| Sep 3, 2026 | Peter P Sena III | SO | Sale10b5 | 4,266 | $88.59 | $378K |
| Sep 1, 2026 | Matthew M. Kim | SO | Sale10b5 | 100 | $88.45 | $9K |
| Aug 6, 2026 | Sterling A Spainhour Jr. | SO | Sale10b5 | 3,333 | $94.02 | $313K |
| Aug 3, 2026 | Matthew M. Kim | SO | Sale10b5 | 100 | $94.28 | $9K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=SO" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Southern Co as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →