Dale E. Klein - 01 Jul 2025 Form 4 Insider Report for SOUTHERN CO (SO)

Role: Director
Signature: /s/ J. Patrick Becker, Attorney-in-Fact for Dale E. Klein
Issuer symbol: SO
Transactions as of: 01 Jul 2025
Net transactions value: +$42,500
Form type: 4
Filing time: 02 Jul 2025, 11:33:45 UTC
Previous filing: 03 Apr 2025
Next filing: 02 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Klein Dale E.	Director	30 IVAN ALLEN JR. BLVD., NW, ATLANTA	/s/ J. Patrick Becker, Attorney-in-Fact for Dale E. Klein	02 Jul 2025	0001493467

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	SO	Southern Company Common Stock Holding						0	01 Jul 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SO	Deferred Stock Units Holding	Award	$42,500	+460	+0.85%	$92.30	54,572	01 Jul 2025	Southern Company Common Stock	460	$0.000000	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Acquired pursuant to Southern's Deferred Compensation Plan, payable in stock only upon termination. There is no exercise or expiration date.