Southern Company (NYSE: SO) comptroller trades 100 shares under plan
Rhea-AI Filing Summary
Southern Company reported that Comptroller Matthew M. Kim sold 100 shares of Southern Company Common Stock on 2026-08-03 at $94.28 per share in an open market or private transaction pursuant to a Rule 10b5-1 trading plan.
After the sale he held 6,488 shares directly and 1,222.207 shares indirectly through a 401(k) plan.
Positive
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Insider Trade Summary 10b5-1
Net Seller: 100 shares
Net Sell
2 txns
Insider
Kim Matthew M.
Role
Comptroller
Sold
100 shs ($9K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Southern Company Common Stock | 100 | $94.28 | $9K |
| holding | Southern Company Common Stock | -- | -- | -- |
Holdings After Transaction:
Southern Company Common Stock — 6,488 shares (Direct);
Southern Company Common Stock — 1,222.207 shares (Indirect, 401(k))
Key Figures
Shares sold: 100.0000 shares
Sale price: $94.2800 per share
Direct holdings after sale: 6488.0000 shares
+1 more
4 metrics
Shares sold
100.0000 shares
Southern Company Common Stock sold on 2026-08-03
Sale price
$94.2800 per share
Price per share for the 2026-08-03 sale
Direct holdings after sale
6488.0000 shares
Directly owned Southern Company shares following the reported sale
Indirect 401(k) holdings
1222.2070 shares
Indirect Southern Company shares held through a 401(k) plan
Key Terms
Southern Company Common Stock, indirect ownership, 401(k), open market or private transaction
4 terms
Southern Company Common Stock financial
"Security title reported as Southern Company Common Stock"
indirect ownership financial
"Ownership type marked as indirect for 401(k) holdings"
401(k) financial
"Nature of ownership described as 401(k) for certain shares"
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.
open market or private transaction financial
"Description notes a sale in open market or private transaction"
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider transaction did Southern Company (SO) disclose?
Southern Company disclosed that Comptroller Matthew M. Kim sold 100 shares of Southern Company Common Stock on 2026-08-03. The transaction was reported as a sale in an open market or private transaction under a Rule 10b5-1 trading plan.
What are Matthew M. Kim’s remaining Southern Company (SO) holdings after the sale?
After the transaction, Matthew M. Kim held 6,488 shares of Southern Company Common Stock directly. He also reported 1,222.207 shares held indirectly through a 401(k) plan, reflecting his continuing ownership interest in the company.
Was the Southern Company (SO) insider sale made under a Rule 10b5-1 trading plan?
Yes. The filing indicates the transaction was effected under a Rule 10b5-1 trading plan. Such plans allow pre-arranged trades according to preset instructions, which can limit the relevance of trade timing for interpreting insider sentiment.
How is part of Matthew M. Kim’s Southern Company (SO) stake held?
In addition to directly held shares, Matthew M. Kim reported indirect ownership of 1,222.207 shares of Southern Company Common Stock through a 401(k) plan, reflecting retirement-plan holdings separate from his directly owned shares.
What is Matthew M. Kim’s role at Southern Company (SO) in this filing?
Matthew M. Kim is identified as the company’s Comptroller, an officer role. The reported transaction therefore reflects trading activity by a senior financial officer, which is required to be disclosed through this type of insider ownership report.