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SOUTHERN CO

For the period ended Mar 31, 2025. Filed May 1, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 1, 2025

SO$93.57+1.3%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Retirement Benefits

(H)RETIREMENT BENEFITS

The Southern Company system has a qualified defined benefit, trusteed, pension plan covering substantially all employees, with the exception of employees at PowerSecure. The qualified pension plan is funded in accordance with requirements of the Employee Retirement Income Security Act of 1974, as amended. No mandatory contributions to the qualified pension plan are anticipated for the year ending December 31, 2025. The Southern Company system also provides certain non-qualified defined benefits for a select group of management and highly compensated employees, which are funded on a cash basis. In addition, the Southern Company system provides certain medical care and life insurance benefits for retired employees through other postretirement benefit plans. The traditional electric operating companies fund other postretirement trusts to the extent required by their respective regulatory commissions.

See Note 11 to the financial statements in Item 8 of the Form 10-K for additional information.

On each Registrant's condensed statements of income, the service cost component of net periodic benefit costs is included in other operations and maintenance expenses and all other components of net periodic benefit costs are included in other income (expense), net. Components of the net periodic benefit costs for the three months ended March 31, 2025 and 2024 are presented in the following tables.

SouthernCompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas
(in millions)
Pension Plans
Service cost$66$15$16$3$1$7
Interest cost16639497211
Expected return on plan assets(320)(78)(99)(15)(4)(22)
Amortization:
Prior service costs—————(1)
Regulatory asset—————4
Net loss92411—
Net periodic pension income$(79)$(22)$(30)$(4)$—$(1)
Postretirement Benefits
Service cost$3$1$1$—$—$—
Interest cost17461—2
Expected return on plan assets(23)(9)(8)——(2)
Amortization:
Prior service costs1—————
Regulatory asset—————2
Net gain(3)——(1)—(2)
Net periodic postretirement benefit income$(5)$(4)$(1)$—$—$—
SouthernCompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas
(in millions)
Pension Plans
Service cost$73$17$18$3$2$7
Interest cost15937487210
Expected return on plan assets(316)(77)(99)(14)(4)(21)
Amortization:
Prior service costs—————(1)
Regulatory asset—————4
Net loss1445———
Net periodic pension income$(70)$(19)$(28)$(4)$—$(1)
Postretirement Benefits
Service cost$4$1$1$—$—$—
Interest cost16461—2
Expected return on plan assets(22)(9)(8)——(2)
Amortization:
Prior service costs1—————
Regulatory asset—————2
Net gain(4)—(1)(1)—(1)
Net periodic postretirement benefit cost (income)$(5)$(4)$(2)$—$—$1
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.