SO

SEC source: 0001209191-22-051872 · doc4.xml · derivative · entry 1

Klein Dale E. · CIK 0001493467 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,584.6678

Underlying: Southern Company Common Stock · 588.2353 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.

SEC source: 0001209191-22-051868 · doc4.xml · derivative · entry 1

Moniz Ernest J · CIK 0001265177 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,431.4182

Underlying: Southern Company Common Stock · 588.2353 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.

SEC source: 0001209191-22-051862 · doc4.xml · derivative · entry 1

WOOD E JENNER III · CIK 0001015221 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,188.1926

Underlying: Southern Company Common Stock · 588.2353 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.

SEC source: 0001209191-22-051856 · doc4.xml · derivative · entry 1

Svinicki Kristine L · CIK 0001889194 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,787.9792

Underlying: Southern Company Common Stock · 588.2353 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.

SEC source: 0001209191-22-049336 · doc4.xml · derivative · entry 3

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,546

Underlying: Southern Company Common Stock · 14,500 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-049336 · doc4.xml · nonDerivative · entry 2

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,284.1563

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.30 to $79.73, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-049336 · doc4.xml · nonDerivative · entry 1

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,784.1563

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-046839 · doc4.xml · nonDerivative · entry 1

FANNING THOMAS A · CIK 0001227464 · President, CEO & Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 781,903.733

F1 · shares: Shares were a charitable donation to the Fanning Family Fund, a donor-advised fund at an independent public charity.

SEC source: 0001209191-22-045426 · doc4.xml · derivative · entry 3

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,046

Underlying: Southern Company Common Stock · 14,500 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-045426 · doc4.xml · nonDerivative · entry 2

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,284.1563

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.12 to $78.60, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-045426 · doc4.xml · nonDerivative · entry 1

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,784.1563

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-043687 · doc4.xml · derivative · entry 4

Kerr, II James Y · CIK 0001601624 · EVP, Chief Legal Officer & CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 25,000 shares

Expires 2024-03-10

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-043687 · doc4.xml · nonDerivative · entry 2

Kerr, II James Y · CIK 0001601624 · EVP, Chief Legal Officer & CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,987

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-043687 · doc4.xml · nonDerivative · entry 1

Kerr, II James Y · CIK 0001601624 · EVP, Chief Legal Officer & CCO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,987

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-041140 · doc4.xml · derivative · entry 3

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,546

Underlying: Southern Company Common Stock · 14,500 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-041140 · doc4.xml · nonDerivative · entry 2

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,284.1563

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-041140 · doc4.xml · nonDerivative · entry 1

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,784.1563

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-040731 · doc4.xml · derivative · entry 1

Akella Janaki · CIK 0001763595 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,477.6006

Underlying: Southern Company Common Stock · 546.8964 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.

SEC source: 0001209191-22-040721 · doc4.xml · derivative · entry 1

Klein Dale E. · CIK 0001493467 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,623.7894

Underlying: Southern Company Common Stock · 546.8964 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.

SEC source: 0001209191-22-040730 · doc4.xml · derivative · entry 1

Clark Henry A III · CIK 0001474932 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,283.9269

Underlying: Southern Company Common Stock · 922.8876 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.

SEC source: 0001209191-22-040727 · doc4.xml · derivative · entry 1

EARLEY ANTHONY F JR · CIK 0001167316 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,332.0314

Underlying: Southern Company Common Stock · 924.5967 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.

SEC source: 0001209191-22-040725 · doc4.xml · derivative · entry 1

GRAIN DAVID J · CIK 0001249303 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,652.7043

Underlying: Southern Company Common Stock · 1,025.4307 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.

SEC source: 0001209191-22-040724 · doc4.xml · derivative · entry 1

Honorable Colette D · CIK 0001827550 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,594.2165

Underlying: Southern Company Common Stock · 734.892 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.

SEC source: 0001209191-22-040723 · doc4.xml · derivative · entry 1

JAMES DONALD M · CIK 0001188417 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,643.6293

Underlying: Southern Company Common Stock · 922.8876 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.

SEC source: 0001209191-22-040722 · doc4.xml · derivative · entry 1

JOHNS JOHN D · CIK 0001189571 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,814.5252

Underlying: Southern Company Common Stock · 546.8964 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.

SEC source: 0001209191-22-040718 · doc4.xml · derivative · entry 1

Moniz Ernest J · CIK 0001265177 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,723.2063

Underlying: Southern Company Common Stock · 546.8964 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.

SEC source: 0001209191-22-040717 · doc4.xml · derivative · entry 1

SMITH WILLIAM G JR · CIK 0000909019 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,724.5705

Underlying: Southern Company Common Stock · 991.2497 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.

SEC source: 0001209191-22-040715 · doc4.xml · derivative · entry 1

Svinicki Kristine L · CIK 0001889194 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,180.6791

Underlying: Southern Company Common Stock · 546.8964 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.

SEC source: 0001209191-22-040713 · doc4.xml · derivative · entry 1

WOOD E JENNER III · CIK 0001015221 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,135.4151

Underlying: Southern Company Common Stock · 546.8964 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.

SEC source: 0001209191-22-036212 · doc4.xml · derivative · entry 3

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,046

Underlying: Southern Company Common Stock · 14,500 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-036212 · doc4.xml · nonDerivative · entry 2

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,284.1563

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.65 to $72.55, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-036212 · doc4.xml · nonDerivative · entry 1

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,784.1563

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-028319 · doc4.xml · derivative · entry 3

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,546

Underlying: Southern Company Common Stock · 14,500 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-028319 · doc4.xml · nonDerivative · entry 2

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,284.1563

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.31 to $74.75, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-028319 · doc4.xml · nonDerivative · entry 1

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,784.1563

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-029411 · doc4.xml · nonDerivative · entry 2

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Indirect · By Son

Disclosed balance after: 75

F1 · kind: A gift of securities by the reporting person to her son, who shares reporting person's household.

SEC source: 0001209191-22-029411 · doc4.xml · nonDerivative · entry 1

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,742.028

F1 · kind: A gift of securities by the reporting person to her son, who shares reporting person's household.

SEC source: 0001209191-22-023980 · doc4.xml · derivative · entry 3

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,046

Underlying: Southern Company Common Stock · 14,500 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023980 · doc4.xml · nonDerivative · entry 2

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,284.1563

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.76 to $76.21, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-023980 · doc4.xml · nonDerivative · entry 1

Kuczynski Stephen E · CIK 0001524757 · Pres. & CEO, Southern Nuclear

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,784.1563

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023983 · doc4.xml · derivative · entry 3

Anderson Bryan D · CIK 0001831824 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 26,917 shares

Expires 2023-02-11

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023983 · doc4.xml · nonDerivative · entry 2

Anderson Bryan D · CIK 0001831824 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,660

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.66 to $76.23, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-023983 · doc4.xml · nonDerivative · entry 1

Anderson Bryan D · CIK 0001831824 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,577

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023493 · doc4.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 40,419 shares

Expires 2023-04-01

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023493 · doc4.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,120

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.00 to $75.62, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-023493 · doc4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 163,539

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023493 · doc4.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 17,728 shares

Expires 2024-02-10

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023493 · doc4.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,419

Underlying: Southern Company Common Stock · 41,860 shares

Expires 2023-04-01

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-023493 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,120

F1 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.00 to $75.14, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001209191-22-023493 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,980

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 · security: Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.