The Southern Company
IT ˙ BIT ˙ US8425871071
78,00 € 0,00 (0,00%)
2026-06-03
AKTIENPREIS
SecurityIT:1SO / The Southern Company
InstitutionCornerstone Management, Inc.
Latest Disclosed Ownership3,802 shares
Latest Disclosed Value $ 366,926
Cornerstone Management, Inc. reports 0.05% increase in ownership of 1SO / The Southern Company

On April 16, 2026 - Cornerstone Management, Inc. filed a 13F-HR form disclosing ownership of 3,802 shares of The Southern Company (IT:1SO) valued at $328,075 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 3,800 shares of The Southern Company. This represents a change in shares of 0.05% during the quarter. The current value of the position is $296,556 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)
2026-04-16 2026-03-31 13F SOUTHERN COM 842587107 3,802 2 0.05 367 10.57 0.0585
2026-02-06 2025-12-31 13F SOUTHERN COM 842587107 3,800 1 0.03 331 -8.06 0.0540
2025-10-10 2025-09-30 13F SOUTHERN COM 842587107 3,799 1 0.03 360 3.45 0.0595
2025-07-31 2025-06-30 13F SOUTHERN COM 842587107 3,798 2 0.05 349 -0.29 0.0606
2025-04-22 2025-03-31 13F SOUTHERN COM 842587107 3,796 1 0.03 349 11.86 0.0654
2025-01-24 2024-12-31 13F SOUTHERN COM 842587107 3,795 1 0.03 312 -8.77 0.0605
2024-10-09 2024-09-30 13F SOUTHERN COM 842587107 3,794 -8,498 -69.13 342 -64.11 0.0714
2024-07-24 2024-06-30 13F SOUTHERN COM 842587107 12,292 2 0.02 953 8.17 0.2096
2024-05-06 2024-03-31 13F SOUTHERN COM 842587107 12,290 1 0.01 882 2.32 0.1957
2024-01-19 2023-12-31 13F SOUTHERN COM 842587107 12,289 2 0.02 862 8.30 0.2198
2023-10-05 2023-09-30 13F SOUTHERN COM 842587107 12,287 -49 -0.40 795 -8.20 0.2125
2023-08-10 2023-06-30 13F SOUTHERN COM 842587107 12,336 2,001 19.36 867 20.45 0.2212
2023-05-11 2023-03-31 13F SOUTHERN COM 842587107 10,335 2 0.02 719 -2.44 0.1876
2023-05-09 2022-12-31 13F SOUTHERN COM 842587107 10,333 1 0.01 738 4.99 0.2078
2023-05-09 2022-09-30 13F SOUTHERN COM 842587107 10,332 1 0.01 703 -4.62 0.1909
2023-05-09 2022-06-30 13F SOUTHERN COM 842587107 10,331 2 0.02 737 -1.60 0.1915
2023-05-09 2022-03-31 13F SOUTHERN COM 842587107 10,329 1 0.01 749 5.65 0.1840
2023-05-09 2021-12-31 13F SOUTHERN COM 842587107 10,328 1 0.01 708 10.80 0.1955
2023-05-26 2021-09-30 13F SOUTHERN COM 842587107 10,327 2 0.02 640 2.40 0.1686
2023-05-26 2021-06-30 13F SOUTHERN COM 842587107 10,325 1 0.01 625 -2.65 0.1678
2023-05-26 2021-03-31 13F SOUTHERN COM 842587107 10,324 154 1.51 642 2.72 0.1835
2023-05-26 2020-12-31 13F SOUTHERN COM 842587107 10,170 1 0.01 625 13.25 0.1976
2023-05-26 2020-09-30 13F SOUTHERN COM 842587107 10,169 4,001 64.87 551 72.73 0.1814
2023-05-26 2020-06-30 13F SOUTHERN COM 842587107 6,168 2 0.03 320 -4.20 0.1134
2023-05-26 2020-03-31 13F SOUTHERN COM 842587107 6,166 1 0.02 334 -15.05 0.1540
2023-05-26 2019-12-31 13F SOUTHERN COM 842587107 6,165 1 0.02 393 3.16 0.1665
2023-05-26 2019-09-30 13F SOUTHERN COM 842587107 6,164 -4,923 -44.40 381 -37.91 0.1744
2023-05-26 2019-06-30 13F SOUTHERN COM 842587107 11,087 567 5.39 613 12.71 0.2837
2023-05-26 2019-03-31 13F SOUTHERN COM 842587107 10,520 1 0.01 544 17.79 0.2650
2023-05-26 2018-12-31 13F SOUTHERN COM 842587107 10,519 -2,285 -17.85 462 -17.38 0.2791
2023-05-26 2018-09-30 13F SOUTHERN COM 842587107 12,804 1 0.01 558 -5.74 0.2997
2023-05-26 2018-06-30 13F SOUTHERN COM 842587107 12,803 -98 -0.76 593 2.78 0.3407
2023-05-26 2018-03-31 13F SOUTHERN COM 842587107 12,901 1 0.01 576 -7.10 0.3286
2023-06-01 2017-12-31 13F SOUTHERN COM 842587107 12,900 2 0.02 620 -2.05 0.3142
2023-06-01 2017-09-30 13F SOUTHERN COM 842587107 12,898 1 0.01 634 2.59 0.3296
2023-06-01 2017-06-30 13F SOUTHERN COM 842587107 12,897 -107 -0.82 618 -4.64 0.3280
2023-06-01 2017-03-31 13F SOUTHERN COM 842587107 13,004 109 0.85 647 2.05 0.3303
2023-06-01 2016-12-31 13F SOUTHERN COM 842587107 12,895 0 0.00 634 -4.08 0.3636
2023-06-01 2016-09-30 13F SOUTHERN COM 842587107 12,895 2 0.02 661 -4.34 0.3851
2023-06-01 2016-06-30 13F SOUTHERN COM 842587107 12,893 1 0.01 691 3.75 0.4175
2023-06-01 2016-03-31 13F SOUTHERN COM 842587107 12,892 -49 -0.38 667 10.08 0.4177
2023-06-01 2015-12-31 13F SOUTHERN COM 842587107 12,941 51 0.40 606 5.03 0.4002
2023-06-01 2015-09-30 13F SOUTHERN COM 842587107 12,890 1,835 16.60 576 24.41 0.4364
2023-06-01 2015-06-30 13F SOUTHERN COM 842587107 11,055 -149 -1.33 463 -6.65 0.3310
2023-06-01 2015-03-31 13F SOUTHERN COM 842587107 11,204 -2,660 -19.19 496 -27.06 0.3755
2023-06-01 2014-12-31 13F SOUTHERN COM 842587107 13,864 13,864 681 0.5298
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.