# Southern Co: overview

SO · NYSE · CIK 92122 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/so.md) · [Financials](/companies/so/financials.md) · [Filings](/companies/so/filings.md) · [Insiders](/companies/so/insiders.md)

Latest reported revenue: [$8.40bn](/filings/0000092122-26-000034.md) for Q1 FY2026, three months to 2026-03-31, from the 10-Q filed Apr 30, 2026 (XBRL us-gaap:Revenues, accession 0000092122-26-000034).

## Last eight quarters

| Line item | Unit | Q2 FY2024 (2024-06-30) | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [6,463](/filings/0000092122-25-000076.md) | [7,274](/filings/0000092122-25-000084.md) | [6,341 d](/filings/0000092122-26-000006.md) | [7,775](/filings/0000092122-26-000034.md) | [6,973](/filings/0000092122-25-000076.md) | [7,823](/filings/0000092122-25-000084.md) | [6,981 d](/filings/0000092122-26-000006.md) | [8,397](/filings/0000092122-26-000034.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [30.0%](/filings/0000092122-25-000076.md) | [32.6%](/filings/0000092122-25-000084.md) | [16.7% d](/filings/0000092122-26-000006.md) | [25.9%](/filings/0000092122-26-000034.md) | [25.3%](/filings/0000092122-25-000076.md) | [33.2%](/filings/0000092122-25-000084.md) | [13.1% d](/filings/0000092122-26-000006.md) | [24.0%](/filings/0000092122-26-000034.md) |
| Net margin | % | [18.6%](/filings/0000092122-25-000076.md) | [21.1%](/filings/0000092122-25-000084.md) | [8.4% d](/filings/0000092122-26-000006.md) | [17.2%](/filings/0000092122-26-000034.md) | [12.6%](/filings/0000092122-25-000076.md) | [21.9%](/filings/0000092122-25-000084.md) | [6.0% d](/filings/0000092122-26-000006.md) | [16.1%](/filings/0000092122-26-000034.md) |
| Diluted EPS | $ per share | [1.09](/filings/0000092122-25-000076.md) | [1.39](/filings/0000092122-25-000084.md) | not reported | [1.21](/filings/0000092122-26-000034.md) | [0.79](/filings/0000092122-25-000076.md) | [1.54](/filings/0000092122-25-000084.md) | not reported | [1.20](/filings/0000092122-26-000034.md) |
| Free cash flow | $m | [563 d](/filings/0000092122-25-000076.md) | [1,305 d](/filings/0000092122-25-000084.md) | [(576) d](/filings/0000092122-26-000006.md) | [(1,187)](/filings/0000092122-26-000034.md) | [(619) d](/filings/0000092122-25-000076.md) | [559 d](/filings/0000092122-25-000084.md) | [(1,688) d](/filings/0000092122-26-000006.md) | [(1,718)](/filings/0000092122-26-000034.md) |

- Revenue. XBRL Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:Revenues. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 6-month figure less the 3-month figure; 9-month figure less the 6-month figure; 12-month figure less the 9-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $bn | [23.1](/filings/0000092122-24-000009.md) | [29.3](/filings/0000092122-25-000018.md) | [25.3](/filings/0000092122-26-000006.md) | [26.7](/filings/0000092122-26-000006.md) | [29.6](/filings/0000092122-26-000006.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [16.0%](/filings/0000092122-24-000009.md) | [18.3%](/filings/0000092122-25-000018.md) | [23.1%](/filings/0000092122-26-000006.md) | [26.4%](/filings/0000092122-26-000006.md) | [24.7%](/filings/0000092122-26-000006.md) |
| Net margin | % | [10.0%](/filings/0000092122-24-000009.md) | [11.7%](/filings/0000092122-25-000018.md) | [15.7%](/filings/0000092122-26-000006.md) | [16.5%](/filings/0000092122-26-000006.md) | [14.7%](/filings/0000092122-26-000006.md) |
| Diluted EPS | $ per share | [2.24](/filings/0000092122-24-000009.md) | [3.26](/filings/0000092122-25-000018.md) | [3.62](/filings/0000092122-26-000006.md) | [3.99](/filings/0000092122-26-000006.md) | [3.92](/filings/0000092122-26-000006.md) |
| Free cash flow | $bn | [(1.4)](/filings/0000092122-24-000009.md) | [(1.6)](/filings/0000092122-25-000018.md) | [(1.5)](/filings/0000092122-26-000006.md) | [0.8](/filings/0000092122-26-000006.md) | [(2.9)](/filings/0000092122-26-000006.md) |

- Revenue. XBRL Revenue: us-gaap:Revenues.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:Revenues.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:Revenues.
- Net margin (net income / revenue). XBRL Net income: us-gaap:ProfitLoss; Revenue: us-gaap:Revenues; Net income: us-gaap:NetIncomeLoss.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/so/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $8.90bn | 92,990,716 |  | Added +2,622,013 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $7.05bn | 73,665,124 |  | Added +2,125,979 |
| [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $6.20bn | 64,809,708 |  | Added +1,829,620 |
| [Capital World Investors](/funds/1422849.md) | 2026-06-30 | $5.98bn | 62,518,698 |  | Added +6,278,825 |
| [JPMORGAN CHASE & CO](/funds/19617.md) | 2026-06-30 | $3.17bn | 32,778,201 |  | Reduced −10,559,549 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $2.82bn | 29,315,285 |  | Added +960,236 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $2.59bn | 27,023,691 |  | Added +886,834 |
| [FMR LLC](/funds/315066.md) | 2026-06-30 | $2.16bn | 22,537,244 |  | Reduced −350,690 |
| [FRANKLIN RESOURCES INC](/funds/38777.md) | 2026-06-30 | $1.59bn | 16,561,908 |  | Reduced −247,401 |
| [GOLDMAN SACHS GROUP INC](/funds/886982.md) | 2026-06-30 | $1.40bn | 14,582,492 |  | Added +8,740,569 |

## Recent filings

[All 3,327 filings](/companies/so/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-22 | 20:13 ET | [8-K](/filings/0000092122-26-000065.md) | 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0000092122-26-000065 |
| 2026-08-06 | 15:15 ET | [8-K](/filings/0000092122-26-000063.md) | 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0000092122-26-000063 |
| 2026-08-04 | 01:35 ET | [8-K](/filings/0000092122-26-000060.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000092122-26-000060 |
| 2026-08-03 | 10:51 ET | [8-K](/filings/0000092122-26-000058.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000092122-26-000058 |
| 2026-06-08 | 12:44 ET | [8-K](/filings/0000092122-26-000046.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000092122-26-000046 |
| 2026-05-15 | 20:06 ET | [8-K](/filings/0000092122-26-000040.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000092122-26-000040 |
| 2026-04-03 | 14:02 ET | [DEF 14A](/filings/0000092122-26-000028.md) | Proxy statement, period 2026-05-13 | 0000092122-26-000028 |
| 2026-03-19 | 17:37 ET | [8-K](/filings/0000092122-26-000018.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000092122-26-000018 |
| 2026-02-17 | 18:21 ET | [8-K/A](/filings/0000092122-26-000002.md) | 5.02 Departure or appointment of officers or directors | 0000092122-26-000002 |
| 2025-11-06 | 20:31 ET | [8-K](/filings/0000092122-25-000094.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000092122-25-000094 |

## Latest annual report

No annual report is in coverage.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 92122
- Tickers: SO, SOJC, SOJD, SOJE, SOJF, SOMN
- Exchange: NYSE
- SIC code: 4911 Electric Services
- State of incorporation: DE
- Filer category: Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:20 ET. No prices; not investment advice.