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SO

SOUTHERN CO

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Tapewire entity
1308
SEC CIK
0000092122
Parsed reports
1,218

Last 12 months

Inside the activity.

0 purchase rows · 13 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202601
Mar 202603
Apr 202600
May 202601
Jun 202601
Jul 202601
Aug 202602
Sep 202603
Oct 202601

Latest available

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
January 31, 2026 Filed Feb 3, 2026 23:17 UTC Exercise / conversionPerformance Restricted Stock Units · Derivative 1,915 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036068 · ownership.xml · derivative · entry 5

Anderson Bryan D · CIK 0001831824 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,916

Underlying: Southern Company Common Stock · 1,915 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F4 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F4 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:17 UTC Tax withholdingSouthern Company Common Stock 981 $89.31 $87,613.11
Disclosure

SEC source: 0001193125-26-036068 · ownership.xml · nonDerivative · entry 2

Anderson Bryan D · CIK 0001831824 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,526

F2 · shares: Shares withheld to satisfy required state and federal tax withholding requirements.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:17 UTC Exercise / conversionSouthern Company Common Stock 2,052 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036068 · ownership.xml · nonDerivative · entry 1

Anderson Bryan D · CIK 0001831824 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,507

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 137 accrued dividend equivalent units.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:02 UTC
Kerr, II James YChairman, President & CEO, GAS
Exercise / conversionSouthern Co Restricted Stock Units · Derivative 3,179 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036039 · ownership.xml · derivative · entry 7

Kerr, II James Y · CIK 0001601624 · Chairman, President & CEO, GAS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,179

Underlying: Southern Company Common Stock · 3,179 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · shares: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F6 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F6 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:02 UTC
Kerr, II James YChairman, President & CEO, GAS
Tax withholdingSouthern Company Common Stock 1,518 $89.31 $135,572.58
Disclosure

SEC source: 0001193125-26-036039 · ownership.xml · nonDerivative · entry 2

Kerr, II James Y · CIK 0001601624 · Chairman, President & CEO, GAS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,841

F2 · shares: Shares withheld to satisfy required state and federal tax withholding requirements

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:02 UTC
Kerr, II James YChairman, President & CEO, GAS
Exercise / conversionSouthern Company Common Stock 3,407 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036039 · ownership.xml · nonDerivative · entry 1

Kerr, II James Y · CIK 0001601624 · Chairman, President & CEO, GAS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,359

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 228 accrued dividend equivalent units.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:02 UTC
Greene Kimberly S,Chairman, President & CEO, GPC
Exercise / conversionPerformance Restricted Stock Units · Derivative 3,738 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036037 · ownership.xml · derivative · entry 6

Greene Kimberly S, · CIK 0001573512 · Chairman, President & CEO, GPC

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,738

Underlying: Southern Company Common Stock · 3,738 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F5 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F5 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:02 UTC
Greene Kimberly S,Chairman, President & CEO, GPC
Tax withholdingSouthern Company Common Stock 1,692 $89.31 $151,112.52
Disclosure

SEC source: 0001193125-26-036037 · ownership.xml · nonDerivative · entry 2

Greene Kimberly S, · CIK 0001573512 · Chairman, President & CEO, GPC

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,975

F2 · shares: Shares withheld to satisfy required state and federal tax withholding requirements.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:02 UTC
Greene Kimberly S,Chairman, President & CEO, GPC
Exercise / conversionSouthern Company Common Stock 4,006 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036037 · ownership.xml · nonDerivative · entry 1

Greene Kimberly S, · CIK 0001573512 · Chairman, President & CEO, GPC

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,667

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 268 accrued dividend equivalent units.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:01 UTC
Drake Sloane NEVP & CHRO
Exercise / conversionPerformance Restricted Stock Units · Derivative 1,473 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036034 · ownership.xml · derivative · entry 4

Drake Sloane N · CIK 0001971188 · EVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,473

Underlying: Southern Company Common Stock · 1,473 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F3 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F3 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:01 UTC
Drake Sloane NEVP & CHRO
Tax withholdingSouthern Company Common Stock 773 $89.31 $69,036.63
Disclosure

SEC source: 0001193125-26-036034 · ownership.xml · nonDerivative · entry 2

Drake Sloane N · CIK 0001971188 · EVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,263

F2 · shares: Shares withheld to satisfy required state and federal tax withholding requirements.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:01 UTC
Drake Sloane NEVP & CHRO
Exercise / conversionSouthern Company Common Stock 1,579 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036034 · ownership.xml · nonDerivative · entry 1

Drake Sloane N · CIK 0001971188 · EVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,036

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 106 accrued dividend equivalent units.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:00 UTC
WOMACK CHRISTOPHER CChairman, President & CEO
Exercise / conversionPerformance Restricted Stock Units · Derivative 13,215 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036032 · ownership.xml · derivative · entry 7

WOMACK CHRISTOPHER C · CIK 0001195423 · Chairman, President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,216

Underlying: Southern Company Common Stock · 13,215 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F5 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F5 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:00 UTC
WOMACK CHRISTOPHER CChairman, President & CEO
Tax withholdingSouthern Company Common Stock 5,975 $89.31 $533,627.25
Disclosure

SEC source: 0001193125-26-036032 · ownership.xml · nonDerivative · entry 2

WOMACK CHRISTOPHER C · CIK 0001195423 · Chairman, President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,996.8806

F2 · shares: Shares withheld to satisfy required state and federal tax withholding requirements.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:00 UTC
WOMACK CHRISTOPHER CChairman, President & CEO
Exercise / conversionSouthern Company Common Stock 14,159 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036032 · ownership.xml · nonDerivative · entry 1

WOMACK CHRISTOPHER C · CIK 0001195423 · Chairman, President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,971.8806

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 944 accrued dividend equivalent units.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:00 UTC
Kim Matthew M.Comptroller
Exercise / conversionSouthern Co Restricted Stock Units · Derivative 317 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036030 · ownership.xml · derivative · entry 6

Kim Matthew M. · CIK 0002082705 · Comptroller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 318

Underlying: Southern Company Common Stock · 317 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · shares: Represents second 1/3 of restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F4 · derivative.exercise_date: Represents second 1/3 of restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

F4 · derivative.expiration_date: Represents second 1/3 of restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. 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.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:00 UTC
Kim Matthew M.Comptroller
Tax withholdingSouthern Company Common Stock 170 $89.31 $15,182.70
Disclosure

SEC source: 0001193125-26-036030 · ownership.xml · nonDerivative · entry 2

Kim Matthew M. · CIK 0002082705 · Comptroller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,257

F2 · shares: Shares withheld to satisfy required state and federal tax withholding requirements.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:00 UTC
Kim Matthew M.Comptroller
Exercise / conversionSouthern Company Common Stock 340 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036030 · ownership.xml · nonDerivative · entry 1

Kim Matthew M. · CIK 0002082705 · Comptroller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,427

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of second 1/3 of restricted stock units granted on January 31, 2024. Includes 23 accrued dividend equivalent units.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:47 UTC GrantPhantom Stock Units · Derivative 331.1353 $87.20 Strike: $0.00 $28,875.00
Disclosure

SEC source: 0001193125-26-003773 · ownership.xml · derivative · entry 2

EARLEY ANTHONY F JR · CIK 0001167316 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 331.1353

Underlying: Southern Company Common Stock · 331.1353 shares

Expires not disclosed

F4 · security: Represents quarterly director cash retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan. Each phantom stock unit represents the right to receive the cash value of one share of Southern Company common stock.

F5 · derivative.exercise_date: Phantom stock units are settled in cash 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.

F5 · derivative.expiration_date: Phantom stock units are settled in cash 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.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:47 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003773 · ownership.xml · derivative · entry 1

EARLEY ANTHONY F JR · CIK 0001167316 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,161.159

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:46 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003771 · ownership.xml · derivative · entry 1

Svinicki Kristine L · CIK 0001889194 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,488.3045

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:41 UTC GrantDeferred Stock Units Holding · Derivative 874.4266 $87.20 Strike: $0.00 $76,250.00
Disclosure

SEC source: 0001193125-26-003767 · ownership.xml · derivative · entry 1

Turner John M JR · CIK 0001319060 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,793.2632

Underlying: Southern Company Common Stock · 874.4266 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:40 UTC GrantDeferred Stock Units Holding · Derivative 946.1009 $87.20 Strike: $0.00 $82,500.00
Disclosure

SEC source: 0001193125-26-003764 · ownership.xml · derivative · entry 1

SMITH WILLIAM G JR · CIK 0000909019 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,750.1666

Underlying: Southern Company Common Stock · 946.1009 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:40 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003765 · ownership.xml · derivative · entry 1

Thomas Lizanne · CIK 0001305419 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,709.3117

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:40 UTC GrantDeferred Stock Units Holding · Derivative 874.4266 $87.20 Strike: $0.00 $76,250.00
Disclosure

SEC source: 0001193125-26-003763 · ownership.xml · derivative · entry 1

MEADOR DAVID E · CIK 0001167313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,429.1258

Underlying: Southern Company Common Stock · 874.4266 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:39 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003761 · ownership.xml · derivative · entry 1

Klein Dale E. · CIK 0001493467 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,460.4004

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:39 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003759 · ownership.xml · derivative · entry 1

JAMES DONALD M · CIK 0001188417 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 201,300.8631

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:38 UTC GrantDeferred Stock Units Holding · Derivative 931.7661 $87.20 Strike: $0.00 $81,250.00
Disclosure

SEC source: 0001193125-26-003755 · ownership.xml · derivative · entry 1

GRAIN DAVID J · CIK 0001249303 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,842.2409

Underlying: Southern Company Common Stock · 931.7661 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:38 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003753 · ownership.xml · derivative · entry 1

Etheredge James O · CIK 0001786092 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,911.0811

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:37 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003752 · ownership.xml · derivative · entry 1

Cooper Shantella E. · CIK 0001698291 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,166.7314

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 16:37 UTC GrantDeferred Stock Units Holding · Derivative 516.055 $87.20 Strike: $0.00 $45,000.00
Disclosure

SEC source: 0001193125-26-003751 · ownership.xml · derivative · entry 1

Akella Janaki · CIK 0001763595 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,919.4996

Underlying: Southern Company Common Stock · 516.055 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

F3 · balance_after: Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Read SEC document
December 03, 2025 Filed Dec 4, 2025 21:00 UTC
Kerr, II James YChairman, President & CEO, GAS
GiftSouthern Company Common Stock 6,800 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-308053 · ownership.xml · nonDerivative · entry 2

Kerr, II James Y · CIK 0001601624 · Chairman, President & CEO, GAS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,952

F1 · security: Shares were a bona fide gift to a charitable organization.

Read SEC document
December 03, 2025 Filed Dec 4, 2025 21:00 UTC
Kerr, II James YChairman, President & CEO, GAS
GiftSouthern Company Common Stock 11,300 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-308053 · ownership.xml · nonDerivative · entry 1

Kerr, II James Y · CIK 0001601624 · Chairman, President & CEO, GAS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,752

F1 · security: Shares were a bona fide gift to a charitable organization.

Read SEC document
November 06, 2025 Filed Nov 7, 2025 20:00 UTC GiftSouthern Company Common Stock 2,413 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-272100 · ownership.xml · nonDerivative · entry 1

Connally Stan W · CIK 0001498337 · EVP & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,006

F1 · security: Shares were a charitable donation to a donor advised fund.

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:37 UTC GrantDeferred Stock Units Holding · Derivative 830.6962 $94.80 Strike: $0.00 $78,750.00
Disclosure

SEC source: 0001193125-25-228480 · ownership.xml · derivative · entry 1

SMITH WILLIAM G JR · CIK 0000909019 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,450.937

Underlying: Southern Company Common Stock · 830.6962 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 693.5654 $94.80 Strike: $0.00 $65,750.00
Disclosure

SEC source: 0001193125-25-228261 · ownership.xml · derivative · entry 1

EARLEY ANTHONY F JR · CIK 0001167316 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,390.905

Underlying: Southern Company Common Stock · 693.5654 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC
JOHNS JOHN DDirector
GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228248 · ownership.xml · derivative · entry 1

JOHNS JOHN D · CIK 0001189571 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,980.6331

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228257 · ownership.xml · derivative · entry 1

Svinicki Kristine L · CIK 0001889194 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,886.7401

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228246 · ownership.xml · derivative · entry 1

Akella Janaki · CIK 0001763595 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,237.0652

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 817.5105 $94.80 Strike: $0.00 $77,500.00
Disclosure

SEC source: 0001193125-25-228255 · ownership.xml · derivative · entry 1

GRAIN DAVID J · CIK 0001249303 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,199.5392

Underlying: Southern Company Common Stock · 817.5105 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228252 · ownership.xml · derivative · entry 1

Klein Dale E. · CIK 0001493467 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,464.6374

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 764.7679 $94.80 Strike: $0.00 $72,500.00
Disclosure

SEC source: 0001193125-25-228244 · ownership.xml · derivative · entry 1

MEADOR DAVID E · CIK 0001167313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,489.9196

Underlying: Southern Company Common Stock · 764.7679 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228251 · ownership.xml · derivative · entry 1

Thomas Lizanne · CIK 0001305419 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,140.1512

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228243 · ownership.xml · derivative · entry 1

JAMES DONALD M · CIK 0001188417 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 199,063.1309

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 448.3122 $94.80 Strike: $0.00 $42,500.00
Disclosure

SEC source: 0001193125-25-228247 · ownership.xml · derivative · entry 1

Etheredge James O · CIK 0001786092 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,383.0641

Underlying: Southern Company Common Stock · 448.3122 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Oct 2, 2025 20:00 UTC GrantDeferred Stock Units Holding · Derivative 764.7679 $94.80 Strike: $0.00 $72,500.00
Disclosure

SEC source: 0001193125-25-228242 · ownership.xml · derivative · entry 1

Cooper Shantella E. · CIK 0001698291 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,387.8546

Underlying: Southern Company Common Stock · 764.7679 shares

Expires not disclosed

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

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

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

Read SEC document
October 01, 2025 Filed Jan 6, 2026 16:28 UTC GrantDeferred Stock Units Holding · Derivative 910.9578 $94.80 Strike: $0.00 $86,358.80
Disclosure

SEC source: 0001193125-26-003729 · ownership.xml · derivative · entry 1

Turner John M JR · CIK 0001319060 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 910.9578

Underlying: Southern Company Common Stock · 910.9578 shares

Expires not disclosed

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

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

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

Read SEC document
September 30, 2025 Filed Oct 1, 2025 20:00 UTC SaleSouthern Company Common Stock 6,206 $93.83 $582,308.98
Disclosure

SEC source: 0001193125-25-226723 · ownership.xml · nonDerivative · entry 1

Anderson Bryan D · CIK 0001831824 · EVP

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,455

Read SEC document
August 11, 2025 Filed Aug 12, 2025 18:30 UTC SaleSouthern Company Common Stock 2,380 $95.02 $226,147.60
Disclosure

SEC source: 0000950170-25-107172 · ownership.xml · nonDerivative · entry 1

Spainhour Sterling A Jr. · CIK 0001849295 · EVP & CLO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,382

Read SEC document
July 21, 2025 Filed Jul 22, 2025 19:00 UTC
Greene Kimberly S,Chairman, President & CEO, GPC
SaleSouthern Company Common Stock 13,158 $95.00 $1,250,010.00
Disclosure

SEC source: 0000950170-25-097538 · ownership.xml · nonDerivative · entry 1

Greene Kimberly S, · CIK 0001573512 · Chairman, President & CEO, GPC

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 93,661

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.