The Southern Company
US ˙ NYSE ˙ US8425871071

SecuritySO / The Southern Company
InstitutionAmundi
Latest Disclosed Ownership3,324,416 shares
Latest Disclosed Value $ 320,872,632
Amundi reports 89.23% increase in ownership of SO / The Southern Company

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 3,324,416 shares of The Southern Company (US:SO) valued at $320,872,632 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,756,778 shares of The Southern Company. This represents a change in shares of 89.23% during the quarter. The current value of the position is $300,826,404 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SOUTHERN COM 842587107 3,324,416 1,567,638 89.23 320,873 109.46 0.0368
2026-02-17 2025-12-31 13F SOUTHERN COM 842587107 1,756,778 -417,537 -19.20 153,191 -26.22 0.0416
2025-11-14 2025-09-30 13F SOUTHERN COM 842587107 2,174,315 -166,160 -7.10 207,625 -2.68 0.0667
2025-08-13 2025-06-30 13F SOUTHERN COM 842587107 2,340,475 627,779 36.65 213,334 34.57 0.0736
2025-05-15 2025-03-31 13F SOUTHERN COM 842587107 1,712,696 -1,067,441 -38.40 158,527 -31.32 0.0577
2025-02-07 2024-12-31 13F SOUTHERN COM 842587107 2,780,137 284,022 11.38 230,807 3.56 0.0803
2024-11-13 2024-09-30 13F SOUTHERN COM 842587107 2,496,115 1,365,818 120.84 222,878 153.71 0.0821
2024-08-14 2024-06-30 13F SOUTHERN COM 842587107 1,130,297 46,335 4.27 87,847 14.84 0.0337
2024-05-15 2024-03-31 13F SOUTHERN COM 842587107 1,083,962 -793,092 -42.25 76,495 -43.30 0.0329
2024-02-14 2023-12-31 13F SOUTHERN COM 842587107 1,877,054 -14,637 -0.77 134,904 7.16 0.0607
2023-11-14 2023-09-30 13F SOUTHERN COM 842587107 1,891,691 10 0.00 125,892 -5.70 0.0619
2023-08-14 2023-06-30 13F SOUTHERN COM 842587107 1,891,681 129,466 7.35 133,496 5.95 0.0675
2023-05-15 2023-03-31 13F SOUTHERN COM 842587107 1,762,215 73,781 4.37 125,998 4.28 0.0679
2023-02-14 2022-12-31 13F SOUTHERN COM 842587107 1,688,434 -389,974 -18.76 120,824 -15.42 0.0663
2022-11-14 2022-09-30 13F SOUTHERN COM 842587107 2,078,408 546,456 35.67 142,850 29.76 0.0847
2022-09-02 2022-06-30 13F/A-1 SOUTHERN COM 842587107 1,531,952 558,971 57.45 110,087 49.35 0.0883
2022-08-15 2022-06-30 13F SOUTHERN COM 842587107 1,531,952 558,971 110,087 0.0058
2022-05-16 2022-03-31 13F SOUTHERN COM 842587107 972,981 -282,861 -22.52 73,713 -14.13 0.0499
2022-02-14 2021-12-31 13F SOUTHERN COM 842587107 1,255,842 -624,160 -33.20 85,838 -26.32 0.0544
2021-11-15 2021-09-30 13F SOUTHERN COM 842587107 1,880,002 1,267,540 206.96 116,503 314,772.97 0.0816
2021-08-16 2021-06-30 13F SOUTHERN COM 842587107 612,462 612,462 37 0.0257
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.