What Southern Company's FY2025 10-K says: 9 signals

Southern Company filed its latest 10-K with the SEC on Feb 18, 2026. It discusses capacity constraint, platform strategy and capex increase.

Public (SO)Security and Investigations10,000+ employeessoutherncompany.comLinkedIn

Filed: Feb 18, 2026
Period: FY2025
Fiscal year end: 12/31
Filings: 1

10-K · latest 6

What Southern Company's 10-K filings say

10-K · FY2025
Filed Feb 18, 2026 · Fiscal year ends 12/31 · 9 signals
SEC EDGAR
- Capacity constraintPositive
  Investing $19.5B in new generation and storage through 2030 to meet surging data center demand.
  The company needs to build approximately 9 GW of new generation and battery storage facilities to meet this demand.
  $19.5B
  Certified costs for Georgia Power new generation and battery energy storage projects
  battery energy storage
- Capex increasePositive
  Georgia Power plans $19.5B capex for 9 GW of new generation and storage by 2030.
  $19.5B
  Certified costs for Georgia Power new generation and battery energy storage projects
  battery energy storage
- Market expansionNeutral
  Experiencing significant electricity demand growth driven by data centers
  The company is facing a surge in electricity demand from data centers, creating pressure to rapidly expand generation, transmission, and distribution systems.
  data centers
- Major contract winPositive
  Secured contracts for ~9 GW of new load from data centers since 2023
  Since 2023, the company has signed contracts with new data centers and other large customers for approximately 9 GW of electric load.
  data centers
- Sustainability investmentPositive
  Subsidiary PowerSecure actively deploys microgrids and distributed energy solutions.
  Southern Company's subsidiary, PowerSecure, is focused on developing and deploying microgrids and resilience solutions for commercial, industrial, governmental, and utility customers.
  microgridsdistributed energy
- Compliance burdenNeutral
  Submitted FERC compliance filing on Feb 5, 2026 to modify SEEM market agreement.
  Following a settlement, the company is modifying its Southeast Energy Exchange Market (SEEM) agreement, which requires regulatory filings and process changes.

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Track Southern Company with the Signal API

One POST /v1/companies/enrich call with southerncompany.com returns Southern Company 10-K signals (sec-10k), each with its source. Or ask Claude through MCP.

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curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"southerncompany.com","signal_types":["sec-10k"],"limit":20}'

Questions about Southern Company 10-K

When did Southern Company file its latest 10-K?

Southern Company filed its latest 10-K (FY2025) on Feb 18, 2026.

What does Southern Company's latest 10-K say about capacity constraint?

From the filing dated Feb 18, 2026: Investing $19.5B in new generation and storage through 2030 to meet surging data center demand.

Where can I find Southern Company's annual report?

The full filing is on SEC EDGAR: https://www.sec.gov/Archives/edgar/data/3153/000009212226000006/so-20251231.htm. This page summarizes what the filing says and links to it.

Source. Annual reports (Form 10-K) filed with the SEC. Every card links to the filing on EDGAR.

Method. Insights are extracted from the filing text and grouped by category. Numbers are quoted from the filing.

Data as of Sep 30, 2026.

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