SO

SEC source: 0001209191-20-014567 · doc4.xml · derivative · entry 4

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,596

Underlying: Southern Company Common Stock · 2,596 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014567 · doc4.xml · nonDerivative · entry 2

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,989.2406

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

SEC source: 0001209191-20-014567 · doc4.xml · nonDerivative · entry 1

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,270.2406

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 225 accrued dividend equivalent units.

SEC source: 0001209191-20-014561 · 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: 3,617

Underlying: Southern Company Common Stock · 3,617 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014561 · 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: 67,206

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

SEC source: 0001209191-20-014561 · 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: 68,990

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 314 accrued dividend equivalent units.

SEC source: 0001209191-20-014553 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,997

Underlying: Southern Company Common Stock · 20,997 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014553 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 619,330.073

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

SEC source: 0001209191-20-014553 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 629,678.073

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 1,818 accrued dividend equivalent units.

SEC source: 0001209191-20-014548 · doc4.xml · derivative · entry 4

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,635

Underlying: Southern Company Common Stock · 2,634 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014548 · doc4.xml · nonDerivative · entry 2

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,119.59

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

SEC source: 0001209191-20-014548 · doc4.xml · nonDerivative · entry 1

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,418.59

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 229 accrued dividend equivalent units.

SEC source: 0001209191-20-014544 · doc4.xml · derivative · entry 4

Wilson Anthony L · CIK 0001538652 · Pres & CEO, Mississippi Power

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,874

Underlying: Southern Company Common Stock · 1,874 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014544 · doc4.xml · nonDerivative · entry 2

Wilson Anthony L · CIK 0001538652 · Pres & CEO, Mississippi Power

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,365

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

SEC source: 0001209191-20-014544 · doc4.xml · nonDerivative · entry 1

Wilson Anthony L · CIK 0001538652 · Pres & CEO, Mississippi Power

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,270

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 163 accrued dividend equivalent units.

SEC source: 0001209191-20-014541 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,107

Underlying: Southern Company Common Stock · 5,107 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014541 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 97,099

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

SEC source: 0001209191-20-014541 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,561

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 443 accrued dividend equivalent units.

SEC source: 0001209191-20-014538 · doc4.xml · derivative · entry 3

Evans Andrew W · CIK 0001338158 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,069

Underlying: Southern Company Common Stock · 5,069 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014538 · doc4.xml · nonDerivative · entry 2

Evans Andrew W · CIK 0001338158 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 145,086

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

SEC source: 0001209191-20-014538 · doc4.xml · nonDerivative · entry 1

Evans Andrew W · CIK 0001338158 · Executive Vice President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,585

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 439 accrued dividend equivalent units.

SEC source: 0001209191-20-014535 · doc4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,117

Underlying: Southern Company Common Stock · 2,117 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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 performance restricted stock units granted on February 27, 2018. The remaining 1/3 award will vest in 2021. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-014535 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,993.053

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

SEC source: 0001209191-20-014535 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,014.053

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 second 1/3 of performance restricted stock units granted on February 27, 2018. Includes 184 accrued dividend equivalent units.

SEC source: 0001209191-20-010177 · doc4.xml · nonDerivative · entry 1

Wilson Anthony L · CIK 0001538652 · Pres & CEO, Mississippi Power

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,207

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

SEC source: 0001209191-20-010200 · doc4.xml · derivative · entry 3

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 · 3,054 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 final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-010200 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,279.1563

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

SEC source: 0001209191-20-010200 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,872.1563

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 the final 1/3 of performance restricted stock units granted on February 13, 2017. Includes 458 accrued dividend equivalent units.

SEC source: 0001209191-20-010233 · 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: 0

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.

F4 · security: Represents final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-010233 · 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 · 678 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: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

F3 · derivative.exercise_date: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

F3 · derivative.expiration_date: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

SEC source: 0001209191-20-010233 · 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: 65,059

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

SEC source: 0001209191-20-010233 · 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: 65,414

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: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

SEC source: 0001209191-20-010233 · 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: 64,633

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

SEC source: 0001209191-20-010233 · 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: 66,183

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 the final 1/3 of performance restricted stock units granted on February 13, 2017. Includes 445 accrued dividend equivalent units.

SEC source: 0001209191-20-010224 · doc4.xml · derivative · entry 7

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 2,222 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-010224 · doc4.xml · derivative · entry 6

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 678 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: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

F3 · derivative.exercise_date: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

F3 · derivative.expiration_date: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

SEC source: 0001209191-20-010224 · doc4.xml · nonDerivative · entry 4

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,449.2406

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

SEC source: 0001209191-20-010224 · doc4.xml · nonDerivative · entry 3

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,804.2406

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: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

SEC source: 0001209191-20-010224 · doc4.xml · nonDerivative · entry 2

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,023.2406

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

SEC source: 0001209191-20-010224 · doc4.xml · nonDerivative · entry 1

WOMACK CHRISTOPHER C · CIK 0001195423 · EVP & Pres. External Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,183.2406

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 the final 1/3 of performance restricted stock units granted on February 13, 2017. Includes 333 accrued dividend equivalent units.

SEC source: 0001209191-20-010218 · doc4.xml · derivative · entry 7

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 2,255 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-010218 · doc4.xml · derivative · entry 6

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 678 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: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

F3 · derivative.exercise_date: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

F3 · derivative.expiration_date: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

SEC source: 0001209191-20-010218 · doc4.xml · nonDerivative · entry 4

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,555.59

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

SEC source: 0001209191-20-010218 · doc4.xml · nonDerivative · entry 3

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,910.59

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: Restricted Stock Unit (RSU) award was granted on February 13, 2017. On February 13, 2020, the remaining 678 RSUs and 103 dividend equivalent units vested.

SEC source: 0001209191-20-010218 · doc4.xml · nonDerivative · entry 2

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,129.59

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

SEC source: 0001209191-20-010218 · doc4.xml · nonDerivative · entry 1

Lantrip Mark · CIK 0001600639 · Chair, President & CEO, SCS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,306.59

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 the final 1/3 of performance restricted stock units granted on February 13, 2017. Includes 338 accrued dividend equivalent units.

SEC source: 0001209191-20-010213 · doc4.xml · derivative · entry 4

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 517 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 final 1/3 of restricted stock units granted on February 13, 2017. Each restricted stock unit represents the right to receive, at statement, 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 final 1/3 of restricted stock units granted on February 13, 2017. Each restricted stock unit represents the right to receive, at statement, 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 final 1/3 of restricted stock units granted on February 13, 2017. Each restricted stock unit represents the right to receive, at statement, 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: 0001209191-20-010213 · doc4.xml · nonDerivative · entry 2

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,811.38

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

SEC source: 0001209191-20-010213 · doc4.xml · nonDerivative · entry 1

Daiss Ann P · CIK 0001354912 · Comptroller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,082.38

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 restricted stock units granted on February 13, 2017. Includes 78 accrued dividend equivalent units.

SEC source: 0001209191-20-010209 · doc4.xml · derivative · entry 4

Wilson Anthony L · CIK 0001538652 · Pres & CEO, Mississippi Power

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 1,604 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 final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, 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 final 1/3 of performance restricted stock units granted on February 13, 2017. Each performance restricted stock unit represents the right to receive, at statement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.