SO · Insider Trading

The Southern Company

Every open-market purchase and sale reported by SO officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
1
code P
Sales
9
code S
Reporting Insiders
6
current holders
SO — Recent Form 4 Transactions (latest 2026-10-05)
FiledInsiderRole TypeSharesValue
2026-10-05 David E Meador Director A +913 deriv. —
2026-10-05 Lizanne Thomas Director A +539 deriv. —
2026-10-05 John M Turner JR Director A +913 deriv. —
2026-10-05 James O Etheredge Director A +539 deriv. —
2026-10-05 Kristine L Svinicki Director A +539 deriv. —
2026-10-05 John D Johns Director A +539 deriv. —
2026-10-05 David J Grain Director A +973 deriv. —
2026-10-05 Anthony F Earley Jr Director A +801 deriv. —
2026-10-05 William G Smith Jr Director A +988 deriv. —
2026-10-05 Janaki Akella Director A +539 deriv. —
2026-10-05 Shantella E. Cooper Director A +539 deriv. —
2026-10-01 Matthew M. Kim Comptroller Sell −100 −$8.27K
2026-09-04 Peter P Sena III Chairman,President & CEO, SNC Sell −4,266 −$377.92K
2026-09-04 Matthew M. Kim Comptroller Sell −1,400 −$124.42K
2026-09-03 Matthew M. Kim Comptroller Sell −100 −$8.85K
2026-08-07 Sterling A Spainhour Jr. EVP & CLO Sell −3,333 −$313.37K
2026-08-07 Sterling A Spainhour Jr. EVP & CLO Sell −3,333 −$313.37K
2026-08-04 Matthew M. Kim Comptroller Sell −100 −$9.43K
2026-07-02 David E Meador Director A +801 deriv. —
2026-07-02 Lizanne Thomas Director A +473 deriv. —
2026-07-02 Janaki Akella Director A +473 deriv. —
2026-07-02 David J Grain Director A +854 deriv. —
2026-07-02 John D Johns Director A +473 deriv. —
2026-07-02 John M Turner JR Director A +801 deriv. —
2026-07-02 Anthony F Earley Jr Director A +703 deriv. —
2026-07-02 William G Smith Jr Director A +867 deriv. —
2026-07-02 Matthew M. Kim Comptroller Sell −100 −$9.58K
2026-07-02 Shantella E. Cooper Director A +473 deriv. —
2026-07-02 James O Etheredge Director A +473 deriv. —
2026-07-02 Kristine L Svinicki Director A +473 deriv. —
2026-06-29 Peter P Sena III Chairman,President & CEO, SNC MIXED +396 −$30.70K
2026-03-31 Greene Kimberly S, Chairman, President & CEO, GPC Sell −25,000 −$2.42M
2015-10-02 Linda P Hudson Director A +792 deriv. —
2015-10-02 Jon A Boscia Director A +792 deriv. —
2015-10-02 Dale E. Klein Director A +792 deriv. —
2015-10-02 E Jenner Wood III Director A +947 deriv. —
2015-10-02 David J Grain Director Buy +1,414 deriv. —
2015-10-02 Warren A Hood Jr Director A +1,414 deriv. —
2015-10-02 Larry D. Thompson Director A +1,414 deriv. —
2015-10-02 John D Johns Director A +1,414 deriv. —
2015-10-02 Steven R. Specker Director A +792 deriv. —
2015-10-02 Henry A Clark III Director A +792 deriv. —
2015-10-02 Donald M James Director A +1,414 deriv. —
2015-10-02 Veronica M Hagen Director A +1,584 deriv. —
2015-10-02 William G Smith Jr Director A +1,527 deriv. —
2015-10-02 Juanita P Baranco Director A +1,414 deriv. —
2015-09-02 Donald M James Director A +479 deriv. —
2015-09-02 Steven R. Specker Director A +268 deriv. —
2015-09-02 Dale E. Klein Director A +268 deriv. —
2015-09-02 Veronica M Hagen Director A +537 deriv. —
SO — Current Insider Holders
InsiderRole Shares HeldValue
Greene Kimberly S, Chairman, President & CEO, GPC 103,602 $9.45M
Sterling A Spainhour Jr. EVP & CLO 36,170 $3.30M
Peter P Sena III Chairman,President & CEO, SNC 26,935 $2.46M
David J Grain Director 10,791 $983.92K
William G Smith Jr Director 6,956 $634.26K
Matthew M. Kim Comptroller 6,110 $557.13K
SO Insider Trading FAQ
Who are the insiders at SO?
6 officers, directors and 10%+ beneficial owners currently report holdings in SO via SEC Form 4.
Are SO insiders buying or selling?
Across the 50 most recent Form 4 filings for SO, 1 were open-market purchases (code P) and 9 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is SO insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent SO filing is dated 2026-10-05.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the SO quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.