SO

SEC source: 0001209191-22-009532 · doc4.xml · nonDerivative · entry 3

Connally Stan W · CIK 0001498337 · Executive Vice President, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,702

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 · security: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 11, 2020. Includes 182 accrued dividend equivalent units.

SEC source: 0001209191-22-009532 · doc4.xml · nonDerivative · entry 2

Connally Stan W · CIK 0001498337 · Executive Vice President, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,419

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

SEC source: 0001209191-22-009532 · doc4.xml · nonDerivative · entry 1

Connally Stan W · CIK 0001498337 · Executive Vice President, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,725

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: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 11, 2019. Includes 337 accrued dividend equivalent units.

SEC source: 0001209191-22-009527 · doc4.xml · derivative · entry 7

Wilson Anthony L · CIK 0001538652 · President & CEO, MPC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,297

Underlying: Southern Company Common Stock · 1,297 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 · security: Represents second 1/3 of performance restricted stock units granted on February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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.

SEC source: 0001209191-22-009527 · doc4.xml · derivative · entry 6

Wilson Anthony L · CIK 0001538652 · President & CEO, MPC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 1,750 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 · security: Represents final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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.

SEC source: 0001209191-22-009527 · doc4.xml · nonDerivative · entry 4

Wilson Anthony L · CIK 0001538652 · President & CEO, MPC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,950

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

SEC source: 0001209191-22-009527 · doc4.xml · nonDerivative · entry 3

Wilson Anthony L · CIK 0001538652 · President & CEO, MPC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,576

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 · security: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 11, 2020. Includes 113 accrued dividend equivalent units.

SEC source: 0001209191-22-009527 · doc4.xml · nonDerivative · entry 2

Wilson Anthony L · CIK 0001538652 · President & CEO, MPC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,166

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

SEC source: 0001209191-22-009527 · doc4.xml · nonDerivative · entry 1

Wilson Anthony L · CIK 0001538652 · President & CEO, MPC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,107

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: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 11, 2019. Includes 236 accrued dividend equivalent units.

SEC source: 0001209191-22-009523 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,972

Underlying: Southern Company Common Stock · 2,971 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 · security: Represents second 1/3 of performance restricted stock units granted on February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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.

SEC source: 0001209191-22-009523 · doc4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 3,207 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 · security: Represents final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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.

SEC source: 0001209191-22-009523 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,606.1563

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

SEC source: 0001209191-22-009523 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,064.1563

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.

F3 · security: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 11, 2020. Includes 258 accrued dividend equivalent units.

SEC source: 0001209191-22-009523 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,835.1563

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

SEC source: 0001209191-22-009523 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,497.1563

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: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 11, 2019. Includes 432 accrued dividend equivalent units.

SEC source: 0001209191-22-009520 · doc4.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,487

Underlying: Southern Company Common Stock · 2,486 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 · security: Represents second 1/3 of performance restricted stock units granted on February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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.

SEC source: 0001209191-22-009520 · doc4.xml · derivative · entry 6

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 · 3,355 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 · security: Represents final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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.

SEC source: 0001209191-22-009520 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,757

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

SEC source: 0001209191-22-009520 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,849

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 · security: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 11, 2020. Includes 216 accrued dividend equivalent units.

SEC source: 0001209191-22-009520 · 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: 104,147

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

SEC source: 0001209191-22-009520 · 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: 105,725

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: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 11, 2019. Includes 452 accrued dividend equivalent units.

SEC source: 0001209191-22-009517 · doc4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,706

Underlying: Southern Company Common Stock · 2,705 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 · security: Represents second 1/3 of performance restricted stock units granted on February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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.

SEC source: 0001209191-22-009517 · doc4.xml · derivative · entry 5

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 · 3,650 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 · security: Represents final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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.

SEC source: 0001209191-22-009517 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,601

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

SEC source: 0001209191-22-009517 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,935

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 · security: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 11, 2020. Includes 234 accrued dividend equivalent units.

SEC source: 0001209191-22-009517 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,996

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

SEC source: 0001209191-22-009517 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,912

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: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 11, 2019. Includes 493 accrued dividend equivalent units.

SEC source: 0001209191-22-009514 · doc4.xml · derivative · entry 8

Crosswhite Mark A. · CIK 0001426400 · Chairman, President & CEO, APC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,437

Underlying: Southern Company Common Stock · 3,436 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 · security: Represents second 1/3 of performance restricted stock units granted on February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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 February 11, 2020. The remaining 1/3 of the award will vest in 2023. Each performance 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.

SEC source: 0001209191-22-009514 · doc4.xml · derivative · entry 7

Crosswhite Mark A. · CIK 0001426400 · Chairman, President & CEO, APC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 4,636 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 · security: Represents final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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 final 1/3 of performance restricted stock units granted on February 11, 2019. 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.

SEC source: 0001209191-22-009514 · doc4.xml · nonDerivative · entry 4

Crosswhite Mark A. · CIK 0001426400 · Chairman, President & CEO, APC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,765

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

SEC source: 0001209191-22-009514 · doc4.xml · nonDerivative · entry 3

Crosswhite Mark A. · CIK 0001426400 · Chairman, President & CEO, APC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,422

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 · security: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 11, 2020. Includes 298 accrued dividend equivalent units.

SEC source: 0001209191-22-009514 · doc4.xml · nonDerivative · entry 2

Crosswhite Mark A. · CIK 0001426400 · Chairman, President & CEO, APC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,688

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

SEC source: 0001209191-22-009514 · doc4.xml · nonDerivative · entry 1

Crosswhite Mark A. · CIK 0001426400 · Chairman, President & CEO, APC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,048

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: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 11, 2019. Includes 624 accrued dividend equivalent units.

SEC source: 0001209191-22-008928 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,858.1563

F1 · security: Shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-007275 · doc4.xml · derivative · entry 4

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,415

Underlying: Southern Company Common Stock · 708 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 · security: Represents restricted stock units granted on February 3, 2021. The remaining award will vest 1/3 in 2023 and 1/3 in 2024. 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 restricted stock units granted on February 3, 2021. The remaining award will vest 1/3 in 2023 and 1/3 in 2024. 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 restricted stock units granted on February 3, 2021. The remaining award will vest 1/3 in 2023 and 1/3 in 2024. 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.

SEC source: 0001209191-22-007275 · doc4.xml · nonDerivative · entry 2

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,522.028

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

SEC source: 0001209191-22-007275 · doc4.xml · nonDerivative · entry 1

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,897.028

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: Shares acquired upon vesting of first 1/3 of restricted stock units granted on February 3, 2021. Includes 30 accrued dividend equivalent units.

SEC source: 0001209191-22-007217 · doc4.xml · derivative · entry 5

Tucker Daniel S · CIK 0001881495 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 983

Underlying: Southern Company Common Stock · 492 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 · security: Represents restricted stock units granted on February 3, 2021. The remaining award will vest 1/3 in 2023 and 1/3 in 2024. 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 restricted stock units granted on February 3, 2021. The remaining award will vest 1/3 in 2023 and 1/3 in 2024. 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 restricted stock units granted on February 3, 2021. The remaining award will vest 1/3 in 2023 and 1/3 in 2024. 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.

SEC source: 0001209191-22-007217 · doc4.xml · nonDerivative · entry 2

Tucker Daniel S · CIK 0001881495 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,361

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

SEC source: 0001209191-22-007217 · doc4.xml · nonDerivative · entry 1

Tucker Daniel S · CIK 0001881495 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,612

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: Shares acquired upon vesting of first 1/3 of restricted stock units granted on February 3, 2021. Includes 21 accrued dividend equivalent units.

SEC source: 0001209191-22-002866 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,358.1563

F1 · security: Shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-002228 · doc4.xml · nonDerivative · entry 3

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,468.4417

F3 · shares: Shares were sold pursuant to a Rule 10b5-1 plan.

SEC source: 0001209191-22-000261 · doc4.xml · derivative · entry 1

WOOD E JENNER III · CIK 0001015221 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,091.4331

Underlying: Southern Company Common Stock · 583.2604 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: 0001209191-22-000255 · doc4.xml · derivative · entry 1

Moniz Ernest J · CIK 0001265177 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,400.5777

Underlying: Southern Company Common Stock · 583.2604 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: 0001209191-22-000258 · doc4.xml · derivative · entry 1

SMITH WILLIAM G JR · CIK 0000909019 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,463.1437

Underlying: Southern Company Common Stock · 1,057.1595 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: 0001209191-22-000252 · doc4.xml · derivative · entry 1

Klein Dale E. · CIK 0001493467 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,772.1994

Underlying: Southern Company Common Stock · 583.2604 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: 0001209191-22-000249 · doc4.xml · derivative · entry 1

JOHNS JOHN D · CIK 0001189571 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,483.5721

Underlying: Southern Company Common Stock · 583.2604 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: 0001209191-22-000240 · doc4.xml · derivative · entry 1

EARLEY ANTHONY F JR · CIK 0001167316 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,239.9826

Underlying: Southern Company Common Stock · 986.0747 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: 0001209191-22-000248 · doc4.xml · derivative · entry 1

JAMES DONALD M · CIK 0001188417 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,730.5964

Underlying: Southern Company Common Stock · 984.252 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: 0001209191-22-000245 · doc4.xml · derivative · entry 1

Honorable Colette D · CIK 0001827550 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,033.7552

Underlying: Southern Company Common Stock · 783.7562 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.