[Form 4] SOUTHERN CO Insider Trading Activity

Rhea-AI Filing Summary

Southern Company director reports quarterly deferred stock award

Southern Company director Janaki Akella reported receiving 516.055 deferred stock units on 01/02/2026 as part of the regular quarterly director equity retainer under the Southern Company 2021 Equity and Incentive Compensation Plan. Each deferred stock unit represents the right to receive one share of Southern Company common stock, with settlement in shares occurring after the director’s service on the Board ends, in accordance with the Deferred Compensation Plan for Outside Directors.

Following this transaction, Akella beneficially owns 19,919.4996 deferred stock units, which also include additional units accumulated through the dividend reinvestment feature of the Deferred Compensation Plan. The transaction is reported as an acquisition of derivative securities with a conversion price of $0 and an underlying Southern Company common stock reference price of $87.2.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Akella Janaki

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Deferred Stock Units Holding	516.055	$87.20	$45K

Holdings After Transaction: Deferred Stock Units Holding — 19,919.5 shares (Direct)

Footnotes (1)

1. Represents quarterly director equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company (Deferred Compensation Plan). Each deferred stock unit represents the right to receive one share of Southern Company common stock. Deferred stock units are settled in shares of Southern Company common stock on the date(s) following the termination of the reporting person's service on the Board as specified by the reporting person pursuant to the Deferred Compensation Plan. There is no exercise or expiration date. Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Akella Janaki

(Last) (First) (Middle)

30 IVAN ALLEN JR. BLVD., NW

(Street)

ATLANTA GA 30308

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SOUTHERN CO [ SO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Deferred Stock Units Holding(1)	$0	01/02/2026		A		516.055		(2)	(2)	Southern Company Common Stock	516.055	$87.2	19,919.4996(3)	D

Explanation of Responses:

1. Represents quarterly director equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company (Deferred Compensation Plan). Each deferred stock unit represents the right to receive one share of Southern Company common stock.

2. Deferred stock units are settled in shares of Southern Company common stock on the date(s) following the termination of the reporting person's service on the Board as specified by the reporting person pursuant to the Deferred Compensation Plan. There is no exercise or expiration date.

3. Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

	/s/ Brittney Anderson, Attorney-in-Fact for Janaki Akella	01/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Southern Company (SO) report for Janaki Akella?

Director Janaki Akella reported acquiring 516.055 deferred stock units on 01/02/2026 as part of the quarterly director equity retainer.

How many Southern Company deferred stock units does Janaki Akella now hold?

After the reported transaction, Janaki Akella beneficially owns 19,919.4996 deferred stock units tied to Southern Company common stock.

What does each deferred stock unit for Southern Company (SO) represent?

Each deferred stock unit represents the right to receive one share of Southern Company common stock under the Deferred Compensation Plan for Outside Directors.

When are Southern Company deferred stock units for directors settled?

Deferred stock units are settled in shares of Southern Company common stock on date(s) following the termination of the director’s Board service, as specified by the director in the Deferred Compensation Plan.

Why does the Form 4 for Southern Company (SO) show a $0 exercise price?

The deferred stock units are reported with a $0 conversion or exercise price because they are compensation units that convert into common shares, rather than options requiring a cash exercise.

How are additional Southern Company deferred stock units accumulated over time?

The holding total includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan for Outside Directors.