Ticker Sage

Form 4 · SO

Southern Company Comptroller Matthew M. Kim reports selling 100 shares under a 10b5-1 plan

Matthew M. Kim, Southern Company's Comptroller, filed a Form 4 on Oct 1, 2026 at 4:00 PM ET reporting transactions on Oct 1, 2026.

The filing reports 100 shares in an open-market or private sale (code S) at $82.73, about $8,273 in total.

The filing says the sales were made under a Rule 10b5-1 trading plan.

After these transactions, the filing lists 4,888 shares of Southern Company Common Stock held directly.

Effect on holdings

Taken together, the rows reported here lowered Matthew M. Kim's directly held shares by 2.0%, from 4,988 to 4,888.

Reporting person

Transactions as reported

DateCodeSecuritySharesPriceAcquired or disposedHeld afterOwnership
2026-10-01SSouthern Company Common Stock100$82.73Disposed4,888Direct

Codes: P purchase, S sale, A grant or award, M/X/C exercise or conversion, F shares withheld for taxes or the exercise price, G gift. Prices are as reported; some are weighted averages of several trades.

Source

Southern Company company file → · More Southern Company filings

Disclosures

Editor holdings in SO
The editor holds no position in Southern Company (SO). As of Oct 25, 2026.
Last updated
Oct 25, 2026

A summary of a public filing for general education, the same for every reader. Not a recommendation to buy, sell or hold SO.