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Cummiskey Christopher

Disclosed activity across 1 company

Tapewire entity
57271
SEC CIK
0001642170

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
SOUTHERN COSO · Entity 1308EVPMarch 19, 2026March 19, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

SOUTHERN CO

Report date March 19, 2026 · Filed March 19, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Southern Company Common StockSEC Table I · non-derivativeDirect30,800.4417 Reported balance After 2026-03-19 transaction · row 1
1 source row

Row 1 · 2026-03-19 · Sale · Disposed 6,669 · Balance 30,800.4417

Southern Company Common StockSEC Table I · non-derivativeIndirect401(k)5,857.0111 Reported balance Holding disclosure · report date 2026-03-19 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 5,857.0111

Transaction history

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

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

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 19, 2026 Filed Mar 19, 2026 20:00 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 6,669 $96.55 $643,891.95
Disclosure

SEC source: 0001193125-26-115921 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,800.4417

Read SEC document
February 11, 2026 Filed Feb 13, 2026 20:50 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,441 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-051195 · ownership.xml · derivative · entry 6

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,880

Underlying: Southern Company Common Stock · 1,441 shares

Expires not disclosed

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

F4 · shares: Represents first 1/3 of performance restricted stock units granted on February 5, 2025. The remaining award will vest 1/3 in 2027 and 1/3 in 2028. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F4 · derivative.exercise_date: Represents first 1/3 of performance restricted stock units granted on February 5, 2025. The remaining award will vest 1/3 in 2027 and 1/3 in 2028. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F4 · derivative.expiration_date: Represents first 1/3 of performance restricted stock units granted on February 5, 2025. The remaining award will vest 1/3 in 2027 and 1/3 in 2028. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 11, 2026 Filed Feb 13, 2026 20:50 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 738 $90.86 $67,054.68
Disclosure

SEC source: 0001193125-26-051195 · ownership.xml · nonDerivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,469.4417

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

Read SEC document
February 11, 2026 Filed Feb 13, 2026 20:50 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,490 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-051195 · ownership.xml · nonDerivative · entry 3

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,207.4417

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

F3 · shares: Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 5, 2025. The Compensation and Talent Development Committee certified performance on February 11, 2026. Includes 49 accrued dividend equivalent units.

Read SEC document
February 11, 2026 Filed Feb 13, 2026 20:50 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 9,880 $90.86 $897,696.80
Disclosure

SEC source: 0001193125-26-051195 · ownership.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,717.4417

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

Read SEC document
February 11, 2026 Filed Feb 13, 2026 20:50 UTC SOUTHERN CO SO · Entity 1308 GrantSouthern Company Common Stock 22,178 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-051195 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,597.4417

F1 · shares: Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2023-2025 award. The Compensation and Talent Development Committee certified performance on February 11, 2026. Includes accrued dividend equivalent units.

Read SEC document
February 01, 2026 Filed Feb 3, 2026 23:31 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,537 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036097 · ownership.xml · derivative · entry 6

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 1,537 shares

Expires not disclosed

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

F4 · shares: Represents final 1/3 of performance restricted stock units granted on February 1, 2023. 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 1, 2023. 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 1, 2023. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 01, 2026 Filed Feb 3, 2026 23:31 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 834 $89.31 $74,484.54
Disclosure

SEC source: 0001193125-26-036097 · ownership.xml · nonDerivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,419.4417

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

Read SEC document
February 01, 2026 Filed Feb 3, 2026 23:31 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,715 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036097 · ownership.xml · nonDerivative · entry 3

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,253.4417

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

F3 · shares: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 1, 2023. Includes 178 accrued dividend equivalent units.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:31 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,674 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036097 · ownership.xml · derivative · entry 7

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,674

Underlying: Southern Company Common Stock · 167 shares

Expires not disclosed

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

F5 · shares: Represents second 1/3 of restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F5 · derivative.exercise_date: Represents second 1/3 of restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F5 · derivative.expiration_date: Represents second 1/3 of restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:31 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 758 $89.31 $67,696.98
Disclosure

SEC source: 0001193125-26-036097 · ownership.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,538.4417

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

Read SEC document
January 31, 2026 Filed Feb 3, 2026 23:31 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,794 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036097 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,296.4417

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

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 120 accrued dividend equivalent units.

Read SEC document
May 23, 2025 Filed May 27, 2025 14:30 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 12,335 $89.54 $1,104,475.90
Disclosure

SEC source: 0000950170-25-077437 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,502.4417

Read SEC document
February 19, 2025 Filed Feb 20, 2025 21:00 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 944 $86.00 $81,184.00
Disclosure

SEC source: 0000950170-25-024113 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,837.4417

Read SEC document
February 13, 2025 Filed Feb 18, 2025 21:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,524 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000950170-25-022180 · ownership.xml · derivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 1,524 shares

Expires not disclosed

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

F3 · shares: Represents final 1/3 of performance restricted stock units granted on February 13, 2022. 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 final 1/3 of performance restricted stock units granted on February 13, 2022. 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 final 1/3 of performance restricted stock units granted on February 13, 2022. 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.underlying_shares: Represents final 1/3 of performance restricted stock units granted on February 13, 2022. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 13, 2025 Filed Feb 18, 2025 21:00 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 764 $86.78 $66,299.92
Disclosure

SEC source: 0000950170-25-022180 · ownership.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,781.4417

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

Read SEC document
February 13, 2025 Filed Feb 18, 2025 21:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,708 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-022180 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,545.4417

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

F1 · shares: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 13, 2022. Includes 184 accrued dividend equivalent units.

Read SEC document
February 05, 2025 Filed Feb 7, 2025 22:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,674 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000950170-25-016410 · ownership.xml · derivative · entry 6

Cummiskey Christopher · CIK 0001642170 · EVP & CCO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,348

Underlying: Southern Company Common Stock · 1,674 shares

Expires not disclosed

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

F4 · shares: Represents first 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest 1/3 in 2026 and 1/3 in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F4 · derivative.exercise_date: Represents first 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest 1/3 in 2026 and 1/3 in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F4 · derivative.expiration_date: Represents first 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest 1/3 in 2026 and 1/3 in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 05, 2025 Filed Feb 7, 2025 22:00 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 9,237 $83.87 $774,707.19
Disclosure

SEC source: 0000950170-25-016410 · ownership.xml · nonDerivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP & CCO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,837.4417

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

Read SEC document
February 05, 2025 Filed Feb 7, 2025 22:00 UTC SOUTHERN CO SO · Entity 1308 GrantSouthern Company Common Stock 20,690 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-016410 · ownership.xml · nonDerivative · entry 3

Cummiskey Christopher · CIK 0001642170 · EVP & CCO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,074.4417

F3 · shares: Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2022-2024 award. The Compensation and Talent Development Committee certified performance on February 5, 2025. Includes accrued dividend equivalent units.

Read SEC document
February 05, 2025 Filed Feb 7, 2025 22:00 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 854 $83.87 $71,624.98
Disclosure

SEC source: 0000950170-25-016410 · ownership.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,384.4417

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

Read SEC document
February 05, 2025 Filed Feb 7, 2025 22:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,736 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-016410 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,238.4417

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

F1 · shares: Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on January 31, 2024. The Compensation and Talent Development Committee certified performance on February 5, 2025. Includes 62 accrued dividend equivalent units.

Read SEC document
February 04, 2025 Filed Feb 5, 2025 21:00 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 837 $83.32 $69,738.84
Disclosure

SEC source: 0000950170-25-014427 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,502.4417

Read SEC document
February 01, 2025 Filed Feb 4, 2025 20:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,537 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000950170-25-013213 · ownership.xml · derivative · entry 4

Cummiskey Christopher · CIK 0001642170 · Chairman, President & CEO, SCS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,537

Underlying: Southern Company Common Stock · 1,537 shares

Expires not disclosed

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

F3 · shares: Represents second 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest in 2026. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F3 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest in 2026. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F3 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest in 2026. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 01, 2025 Filed Feb 4, 2025 20:00 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 822 $83.95 $69,006.90
Disclosure

SEC source: 0000950170-25-013213 · ownership.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · Chairman, President & CEO, SCS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,339.4417

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

Read SEC document
February 01, 2025 Filed Feb 4, 2025 20:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,659 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-013213 · ownership.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · Chairman, President & CEO, SCS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,161.4417

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

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 1, 2023. Includes 122 accrued dividend equivalent units.

Read SEC document
February 16, 2024 Filed Feb 16, 2024 21:00 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 902 $65.99 $59,522.98
Disclosure

SEC source: 0001209191-24-003438 · doc4.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,502.4417

Read SEC document
February 15, 2024 Filed Feb 16, 2024 21:00 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 12,985 $67.18 $872,332.30
Disclosure

SEC source: 0001209191-24-003438 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,404.4417

Read SEC document
February 13, 2024 Filed Feb 14, 2024 21:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,524 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001209191-24-003340 · doc4.xml · derivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,524

Underlying: Southern Company Common Stock · 1,524 shares

Expires not disclosed

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

F3 · shares: Represents second 1/3 of performance restricted stock units granted on February 13, 2022. The remaining 1/3 of the award will vest in 2025. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F3 · derivative.exercise_date: Represents second 1/3 of performance restricted stock units granted on February 13, 2022. The remaining 1/3 of the award will vest in 2025. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

F3 · derivative.expiration_date: Represents second 1/3 of performance restricted stock units granted on February 13, 2022. The remaining 1/3 of the award will vest in 2025. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 13, 2024 Filed Feb 14, 2024 21:00 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 744 $67.51 $50,227.44
Disclosure

SEC source: 0001209191-24-003340 · doc4.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,389.4417

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

Read SEC document
February 13, 2024 Filed Feb 14, 2024 21:00 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,646 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-003340 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,133.4417

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

F1 · shares: Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on February 13, 2022. Includes 122 accrued dividend equivalent units.

Read SEC document
February 12, 2024 Filed Feb 13, 2024 20:53 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 883 $66.94 $59,108.02
Disclosure

SEC source: 0001209191-24-003166 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,487.4417

Read SEC document
February 07, 2024 Filed Feb 9, 2024 22:22 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,538 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001209191-24-003041 · doc4.xml · derivative · entry 6

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,074

Underlying: Southern Company Common Stock · 1,538 shares

Expires not disclosed

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

F4 · shares: Represents first 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest 1/3 in 2025 and 1/3 in 2026. 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 first 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest 1/3 in 2025 and 1/3 in 2026. 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 first 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest 1/3 in 2025 and 1/3 in 2026. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 07, 2024 Filed Feb 9, 2024 22:22 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 719 $66.95 $48,137.05
Disclosure

SEC source: 0001209191-24-003041 · doc4.xml · nonDerivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,370.4417

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

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February 07, 2024 Filed Feb 9, 2024 22:22 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,602 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-003041 · doc4.xml · nonDerivative · entry 3

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,089.4417

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

F3 · shares: Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 1, 2023. The Compensation and Talent Development Committee certified performance on February 7, 2024. Includes 64 accrued dividend equivalent units.

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February 07, 2024 Filed Feb 9, 2024 22:22 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 10,670 $66.95 $714,356.50
Disclosure

SEC source: 0001209191-24-003041 · doc4.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,487.4417

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

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February 07, 2024 Filed Feb 9, 2024 22:22 UTC SOUTHERN CO SO · Entity 1308 GrantSouthern Company Common Stock 23,655 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-003041 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,157.4417

F1 · shares: Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2021-2023 award. The Compensation and Talent Development Committee certified performance on February 7, 2024. Includes accrued dividend equivalent units.

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February 06, 2024 Filed Feb 7, 2024 22:05 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 899 $67.06 $60,286.94
Disclosure

SEC source: 0001209191-24-002953 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,502.4417

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February 03, 2024 Filed Feb 6, 2024 21:25 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,592 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001209191-24-002908 · doc4.xml · derivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 1,592 shares

Expires not disclosed

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

F3 · shares: Represents final 1/3 of performance restricted stock units granted on February 3, 2021. 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 final 1/3 of performance restricted stock units granted on February 3, 2021. 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 final 1/3 of performance restricted stock units granted on February 3, 2021. 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.

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February 03, 2024 Filed Feb 6, 2024 21:25 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 905 $68.65 $62,128.25
Disclosure

SEC source: 0001209191-24-002908 · doc4.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,401.4417

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

Read SEC document
February 03, 2024 Filed Feb 6, 2024 21:25 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,794 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-002908 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,306.4417

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

F1 · shares: Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 3, 2021. Includes 202 accrued dividend equivalent units.

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August 29, 2023 Filed Aug 31, 2023 21:44 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 5,000 $68.30 $341,500.00
Disclosure

SEC source: 0001209191-23-047857 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,512.4417

Read SEC document
February 16, 2023 Filed Feb 17, 2023 22:33 UTC SOUTHERN CO SO · Entity 1308 SaleSouthern Company Common Stock 1,282 $66.60 $85,381.20
Disclosure

SEC source: 0001209191-23-010819 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,512.4417

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

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February 13, 2023 Filed Feb 15, 2023 21:55 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionPerformance Restricted Stock Units · Derivative 1,524 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001209191-23-009805 · doc4.xml · derivative · entry 6

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,048

Underlying: Southern Company Common Stock · 1,524 shares

Expires not disclosed

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

F4 · shares: Represents first 1/3 of performance restricted stock units granted on February 13, 2022. The remaining award will vest 1/3 in 2024 and 1/3 in 2025. 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 first 1/3 of performance restricted stock units granted on February 13, 2022. The remaining award will vest 1/3 in 2024 and 1/3 in 2025. 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 first 1/3 of performance restricted stock units granted on February 13, 2022. The remaining award will vest 1/3 in 2024 and 1/3 in 2025. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 13, 2023 Filed Feb 15, 2023 21:55 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 715 $67.13 $47,997.95
Disclosure

SEC source: 0001209191-23-009805 · doc4.xml · nonDerivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,794.4417

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

Read SEC document
February 13, 2023 Filed Feb 15, 2023 21:55 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Company Common Stock 1,582 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-009805 · doc4.xml · nonDerivative · entry 3

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,509.4417

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

F3 · shares: Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 13, 2021. The Compensation Committee and Management Succession Committee certified performance on February 13, 2023. Includes 58 accrued dividend equivalent units.

Read SEC document
February 13, 2023 Filed Feb 15, 2023 21:55 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 4,481 $67.13 $300,809.53
Disclosure

SEC source: 0001209191-23-009805 · doc4.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,927.4417

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

Read SEC document
February 13, 2023 Filed Feb 15, 2023 21:55 UTC SOUTHERN CO SO · Entity 1308 GrantSouthern Company Common Stock 9,934 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-009805 · doc4.xml · nonDerivative · entry 1

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,408.4417

F1 · shares: Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2020-2022 award. The Compensation and Management Succession Committee certified performance on February 13, 2023. Includes accrued dividend equivalent units.

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February 11, 2023 Filed Feb 14, 2023 22:33 UTC SOUTHERN CO SO · Entity 1308 Exercise / conversionSouthern Co Restricted Stock Units · Derivative 667 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001209191-23-009295 · doc4.xml · derivative · entry 4

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Southern Company Common Stock · 667 shares

Expires not disclosed

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

F3 · shares: Represents final 1/3 of restricted stock units granted on February 11, 2020. 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 final 1/3 of restricted stock units granted on February 11, 2020. 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 final 1/3 of restricted stock units granted on February 11, 2020. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Read SEC document
February 11, 2023 Filed Feb 14, 2023 22:33 UTC SOUTHERN CO SO · Entity 1308 Tax withholdingSouthern Company Common Stock 338 $66.88 $22,605.44
Disclosure

SEC source: 0001209191-23-009295 · doc4.xml · nonDerivative · entry 2

Cummiskey Christopher · CIK 0001642170 · EVP & CCCS Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,474.4417

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

Read SEC document

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