[Form 4] The Southern Company Insider Trading Activity

Rhea-AI Filing Summary

Southern Company (SO) – Form 4 insider filing dated 07/02/2025

Director Shantella E. Cooper reported the routine crediting of 785.4821 Deferred Stock Units (DSUs) on 07/01/2025 under the company’s Deferred Compensation Plan. The DSUs carry an exercise price of $0 because they represent phantom stock that converts into common shares only upon termination of service; therefore, no cash was exchanged and no market transaction occurred.

Following the credit, Cooper’s holdings stand at 19,901 directly-owned common shares and 29,383.6952 DSUs. The filing shows the acquisition code “A,” indicating an automatic, non-open-market grant. The reference price of $92.30 appears only for valuation disclosure and does not represent a purchase price.

Because the award is part of standard director compensation and involves fewer than 1,000 equivalent shares—immaterial relative to Southern Company’s ~1.1 billion shares outstanding—the filing is unlikely to affect the share price or alter the firm’s governance structure. No sales, option exercises, or other derivative transactions were disclosed.

Insights

Securities Analyst

TL;DR: Routine DSU grant to director; immaterial to SO valuation.

The Form 4 records an automatic accrual of 785.4821 DSUs for Director Shantella E. Cooper at a reference price of $92.30. The transaction adds roughly $72 k in notional value and lifts her total phantom-share balance to 29.4 k units, plus 19.9 k directly-owned shares. No cash changed hands and no open-market activity occurred, so float and cash flow are unaffected. With SO’s market cap above $80 bn, this grant represents less than 0.0001 % of outstanding equity—far below any materiality threshold. The filing is therefore neutral for investors, offering neither bullish nor bearish information beyond confirming ongoing board compensation practices.

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
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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^*

Cooper Shantella E.

(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)
07/01/2025

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
Southern Company Common Stock Holding								19,901	D

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	07/01/2025		A		785.4821		(1)	(1)	Southern Company Common Stock	785.4821	$92.3	29,383.6952	D

Explanation of Responses:

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

	/s/ J. Patrick Becker, Attorney-in-Fact for Shantella E. Cooper	07/02/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What did Director Shantella E. Cooper report in the July 2025 Form 4 for SO?

She acquired 785.4821 Deferred Stock Units under the company’s Deferred Compensation Plan.

Did Cooper buy Southern Company shares on the open market?

No. The DSUs were credited automatically at $0 exercise price; no open-market purchase or sale occurred.

How many Southern Company common shares does Cooper now own directly?

After the filing, she holds 19,901 directly-owned common shares.

What is the total number of DSUs Cooper holds after the transaction?

Her notional DSU balance increased to 29,383.6952 units.

Is this insider transaction likely to impact SO’s stock price?

Unlikely; the grant is routine director compensation and immaterial relative to the company’s share count.