Sterling A. Spainhour Jr. - 11 Aug 2025 Form 4 Insider Report for SOUTHERN CO (SO)

Role
EVP & CLO
Signature
/s/ Brittney Anderson, Attorney-in-Fact for Sterling A. Spainhour
Issuer symbol
SO
Transactions as of
11 Aug 2025
Net transactions value
-$226,148
Form type
4
Filing time
12 Aug 2025, 14:30:04 UTC
Previous filing
09 May 2025
Next filing
02 Oct 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Spainhour Sterling A Jr. EVP & CLO 30 IVAN ALLEN JR BLVD NW, ATLANTA /s/ Brittney Anderson, Attorney-in-Fact for Sterling A. Spainhour 12 Aug 2025 0001849295

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SO Southern Company Common Stock Sale $226,148 -2,380 -12% $95.02 17,382 11 Aug 2025 Direct
holding SO Southern Company Common Stock 6,797 11 Aug 2025 401(k)
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).