[Form 4] SOUTHERN CO Insider Trading Activity

Rhea-AI Filing Summary

WOMACK CHRISTOPHER C reported multiple insider transaction types in a Form 4 filing for SO. The filing lists transactions totaling 293,349 shares at a weighted average price of $90.86 per share. Following the reported transactions, holdings were 26,604 shares.

Insider Trade Summary

13,302 shares exercised/converted

Mixed 8 txns

Insider WOMACK CHRISTOPHER C

Role Chairman, President & CEO

Type	Security	Shares	Price	Value
Exercise	Performance Restricted Stock Units	13,302	$0.00	--
Grant/Award	Southern Company Common Stock	62,223	$0.00	--
Tax Withholding	Southern Company Common Stock	27,715	$90.86	$2.52M
Exercise	Southern Company Common Stock	13,751	$0.00	--
Tax Withholding	Southern Company Common Stock	6,772	$90.86	$615K
Grant/Award	Southern Company Common Stock	117,327	$0.00	--
Tax Withholding	Southern Company Common Stock	52,259	$90.86	$4.75M
holding	Southern Company Common Stock	--	--	--

Holdings After Transaction: Performance Restricted Stock Units — 26,604 shares (Direct); Southern Company Common Stock — 164,865.881 shares (Direct); Southern Company Common Stock — 2,583.678 shares (Indirect, By 401(k))

Footnotes (1)

1. Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2023-2025 award granted on February 1, 2023 . The Compensation and Talent Development Committee certified performance on February 11, 2026 and the Board of Directors ratified such certification on February 16, 2026. Includes accrued dividend equivalent units. Shares withheld to satisfy required state and federal tax withholding requirements. Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 5, 2025. The Compensation and Talent Development Committee certified performance on February 11, 2026 and the Board of Directors ratified such certification on February 16, 2026. Includes 449 accrued dividend equivalent units. Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2023-2025 award granted on May 24, 2023. The Compensation and Talent Development Committee certified performance on February 11, 2026 and the Board of Directors ratified such certification on February 16, 2026. Includes accrued dividend equivalent units. Represents first 1/3 of performance restricted stock units granted on February 5, 2025. The remaining award will vest 1/3 in 2027 and 1/3 in 2028. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

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^*

WOMACK CHRISTOPHER C

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman, President & CEO

3. Date of Earliest Transaction (Month/Day/Year)
02/16/2026

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
Southern Company Common Stock	02/16/2026		A		62,223(1)	A	$0	164,865.8806	D
Southern Company Common Stock	02/16/2026		F		27,715(2)	D	$90.86	137,150.8806	D
Southern Company Common Stock	02/16/2026		M		13,751(3)	A	$0	150,901.8806	D
Southern Company Common Stock	02/16/2026		F		6,772(2)	D	$90.86	144,129.8806	D
Southern Company Common Stock	02/16/2026		A		117,327(4)	A	$0	261,456.8806	D
Southern Company Common Stock	02/16/2026		F		52,259(2)	D	$90.86	209,197.8806	D
Southern Company Common Stock								2,583.6778	I	By 401(k)

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
Performance Restricted Stock Units	$0	02/16/2026		M			13,302(5)	(5)	(5)	Southern Company Common Stock	13,302	$0	26,604	D

Explanation of Responses:

1. Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2023-2025 award granted on February 1, 2023 . The Compensation and Talent Development Committee certified performance on February 11, 2026 and the Board of Directors ratified such certification on February 16, 2026. Includes accrued dividend equivalent units.

2. Shares withheld to satisfy required state and federal tax withholding requirements.

3. Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 5, 2025. The Compensation and Talent Development Committee certified performance on February 11, 2026 and the Board of Directors ratified such certification on February 16, 2026. Includes 449 accrued dividend equivalent units.

4. Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2023-2025 award granted on May 24, 2023. The Compensation and Talent Development Committee certified performance on February 11, 2026 and the Board of Directors ratified such certification on February 16, 2026. Includes accrued dividend equivalent units.

5. Represents first 1/3 of performance restricted stock units granted on February 5, 2025. The remaining award will vest 1/3 in 2027 and 1/3 in 2028. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

	/s/ Brittney Anderson, Attorney-in-Fact for Christopher C. Womack	02/17/2026
	** Signature of Reporting Person	Date
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