Southern Co (NYSE: SO) insider Spainhour sells 3,333 shares in planned trade
Rhea-AI Filing Summary
SOUTHERN CO executive Sterling A. Spainhour Jr., EVP & CLO, reported selling 3,333 shares of Southern Company Common Stock on 2026-08-06 at $94.02 per share in an open-market or private transaction. The transaction was made under a Rule 10b5-1 trading plan, leaving 35,219 shares held directly plus 951.3316 shares held indirectly through a 401(k).
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Insider Trade Summary 10b5-1
Net Seller: 3,333 shares
Net Sell
2 txns
Insider
Spainhour Sterling A Jr.
Role
EVP & CLO
Sold
3,333 shs ($313K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Southern Company Common Stock | 3,333 | $94.02 | $313K |
| holding | Southern Company Common Stock | -- | -- | -- |
Holdings After Transaction:
Southern Company Common Stock — 35,219 shares (Direct);
Southern Company Common Stock — 951.3316 shares (Indirect, 401(k))
Key Figures
Shares sold: 3,333 shares
Sale price per share: $94.02
Direct holdings after sale: 35,219 shares
+2 more
5 metrics
Shares sold
3,333 shares
Southern Company Common Stock sold on 2026-08-06
Sale price per share
$94.02
Price per share for the 3,333 shares sold
Direct holdings after sale
35,219 shares
Directly owned Southern Company Common Stock following the transaction
Indirect 401(k) holdings
951.3316 shares
Indirect ownership through 401(k) plan as of 2026-08-06
Net shares sold
3,333 shares
Net change in buy/sell activity reported in this Form 4
Key Terms
Rule 10b5-1 trading plan, Southern Company Common Stock, open market or private transaction, 401(k)
4 terms
Rule 10b5-1 trading plan financial
"Transactions were made pursuant to a Rule 10b5-1 trading plan."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Southern Company Common Stock financial
"security_title: Southern Company Common Stock"
open market or private transaction financial
"transaction_code_description: Sale in open market or private transaction"
401(k) financial
"nature_of_ownership: 401(k)"
A 401(k) is a type of retirement savings plan offered by employers that allows workers to set aside a portion of their paycheck before taxes are taken out. The money saved in a 401(k) can grow over time through investments, helping individuals build funds for their future retirement. It matters to investors because it provides a tax-advantaged way to save and invest for long-term financial security.
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider transaction did Southern Company (SO) report for Sterling A. Spainhour Jr.?
Southern Company reported that EVP & CLO Sterling A. Spainhour Jr. sold 3,333 shares of Southern Company Common Stock on 2026-08-06 at $94.02 per share, in an open-market or private transaction under a Rule 10b5-1 trading plan.
Was the Southern Company (SO) insider trade made under a Rule 10b5-1 plan?
Yes. The filing indicates the transaction was made under a Rule 10b5-1 trading plan, meaning the sale of 3,333 Southern Company shares at $94.02 was executed pursuant to a pre-arranged trading arrangement.
Does the Southern Company (SO) filing show any indirect holdings for Sterling Spainhour?
Yes. In addition to direct ownership, Sterling A. Spainhour Jr. is reported to indirectly hold 951.3316 shares of Southern Company Common Stock through a 401(k) account as of the transaction date.