The Southern Company
IT ˙ BIT ˙ US8425871071
78,00 € 0,00 (0,00%)
2026-06-03
DEL PRIS
SecurityIT:1SO / The Southern Company
InstitutionCoastline Trust Co
Latest Disclosed Ownership3,073 shares
Latest Disclosed Value $ 296,606
Coastline Trust Co reports 2.07% decrease in ownership of 1SO / The Southern Company

On April 3, 2026 - Coastline Trust Co filed a 13F-HR form disclosing ownership of 3,073 shares of The Southern Company (IT:1SO) valued at $265,169 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 3,138 shares of The Southern Company. This represents a change in shares of -2.07% during the quarter. The current value of the position is $239,694 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.

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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)
2026-04-03 2026-03-31 13F SOUTHERN COM 842587107 3,073 -65 -2.07 297 8.42 0.0294
2026-01-05 2025-12-31 13F SOUTHERN COM 842587107 3,138 0 0.00 274 -8.08 0.0257
2025-10-21 2025-09-30 13F SOUTHERN COM 842587107 3,138 -50 -1.57 297 1.71 0.0319
2025-07-17 2025-06-30 13F SOUTHERN COM 842587107 3,188 0 0.00 293 -0.34 0.0335
2025-04-28 2025-03-31 13F SOUTHERN COM 842587107 3,188 1,008 46.24 293 63.69 0.0364
2025-02-13 2024-12-31 13F Southern COM 842587107 2,180 -1,899 -46.56 179 -51.23 0.0210
2024-11-06 2024-09-30 13F Southern COM 842587107 4,079 -5 -0.12 368 16.14 0.0432
2024-07-15 2024-06-30 13F SOUTHERN COMMON STOCK 842587107 4,084 -300 -6.84 317 0.64 0.0371
2024-04-26 2024-03-31 13F SOUTHERN COMMON STOCK 842587107 4,384 -3,350 -43.32 315 -42.07 0.0380
2024-01-23 2023-12-31 13F SOUTHERN COMMON STOCK 842587107 7,734 -4,866 -38.62 542 -33.50 0.0721
2023-10-18 2023-09-30 13F SOUTHERN COMMON STOCK 842587107 12,600 -597 -4.52 815 -12.08 0.1202
2023-08-07 2023-06-30 13F SOUTHERN COMMON STOCK 842587107 13,197 -1,431 -9.78 927 -8.85 0.1298
2023-05-31 2023-03-31 13F/A-1 SOUTHERN COMMON STOCK 842587107 14,628 -466 -3.09 1,018 -5.57 0.1507
2023-04-12 2023-03-31 13F SOUTHERN COMMON STOCK 842587107 15,094 0 1,078 0.1606
2023-02-09 2022-12-31 13F SOUTHERN COMMON STOCK 842587107 15,094 4,719 45.48 1,078 52.77 0.1606
2022-11-03 2022-09-30 13F SOUTHERN COMMON STOCK 842587107 10,375 2,075 25.00 705 19.09 0.1128
2022-07-22 2022-06-30 13F SOUTHERN COMMON STOCK 842587107 8,300 3,160 61.48 592 58.71 0.0876
2022-05-04 2022-03-31 13F SOUTHERN COMMON STOCK 842587107 5,140 244 4.98 373 11.34 0.0453
2022-02-10 2021-12-31 13F SOUTHERN COMMON STOCK 842587107 4,896 0 0.00 335 10.20 0.0382
2021-11-09 2021-09-30 13F SOUTHERN COMMON STOCK 842587107 4,896 -40 -0.81 304 2.01 0.0378
2021-08-10 2021-06-30 13F SOUTHERN COMMON STOCK 842587107 4,936 155 3.24 298 0.34 0.0369
2021-05-10 2021-03-31 13F SOUTHERN COMMON STOCK 842587107 4,781 0 0.00 297 1.02 0.0383
2021-02-12 2020-12-31 13F SOUTHERN COMMON STOCK 842587107 4,781 0 0.00 294 13.51 0.0392
2020-10-15 2020-09-30 13F SOUTHERN COMMON STOCK 842587107 4,781 -409 -7.88 259 -3.72 0.0389
2020-08-07 2020-06-30 13F SOUTHERN COMMON STOCK 842587107 5,190 0 0.00 269 -4.27 0.0425
2020-06-10 2020-03-31 13F SOUTHERN COMMON STOCK 842587107 5,190 -365 -6.57 281 -20.62 0.0507
2020-01-15 2019-12-31 13F SOUTHERN COMMON STOCK 842587107 5,555 0 0.00 354 3.21 0.0491
2019-10-18 2019-09-30 13F SOUTHERN COMMON STOCK 842587107 5,555 25 0.45 343 12.09 0.0505
2019-07-18 2019-06-30 13F SOUTHERN COMMON STOCK 842587107 5,530 -40 -0.72 306 6.25 0.0445
2019-04-25 2019-03-31 13F SOUTHERN COMMON STOCK 842587107 5,570 -100 -1.76 288 15.66 0.0430
2019-01-15 2018-12-31 13F SOUTHERN COMMON STOCK 842587107 5,670 0 0.00 249 0.81 0.0429
2018-10-17 2018-09-30 13F SOUTHERN COMMON STOCK 842587107 5,670 -2,210 -28.05 247 -32.33 0.0354
2018-07-27 2018-06-30 13F SOUTHERN COMMON STOCK 842587107 7,880 -18,460 -70.08 365 -68.99 0.0550
2018-04-16 2018-03-31 13F SOUTHERN COMMON STOCK 842587107 26,340 440 1.70 1,177 -5.54 0.1808
2018-01-17 2017-12-31 13F SOUTHERN COMMON STOCK 842587107 25,900 -460 -1.75 1,246 -3.86 0.1875
2017-11-17 2017-09-30 13F SOUTHERN COMMON STOCK 842587107 26,360 2,825 12.00 1,296 15.10 0.2260
2017-08-10 2017-06-30 13F SOUTHERN COMMON STOCK 842587107 23,535 1,920 8.88 1,126 4.65 0.2041
2017-04-19 2017-03-31 13F SOUTHERN COMMON STOCK 842587107 21,615 1,650 8.26 1,076 9.57 0.2009
2017-01-17 2016-12-31 13F SOUTHERN COMMON STOCK 842587107 19,965 670 3.47 982 -0.81 0.1929
2016-10-20 2016-09-30 13F SOUTHERN COMMON STOCK 842587107 19,295 645 3.46 990 -1.00 0.1937
2016-07-18 2016-06-30 13F SOUTHERN COMMON STOCK 842587107 18,650 -20 -0.11 1,000 3.52 0.2020
2016-04-15 2016-03-31 13F SOUTHERN COMMON STOCK 842587107 18,670 0 0.00 966 10.65 0.2061
2016-01-15 2015-12-31 13F SOUTHERN COMMON STOCK 842587107 18,670 -125 -0.67 873 3.93 0.1917
2015-10-30 2015-09-30 13F SOUTHERN COMMON STOCK 842587107 18,795 -250 -1.31 840 5.26 0.1912
2015-07-22 2015-06-30 13F SOUTHERN COMMON STOCK 842587107 19,045 705 3.84 798 -1.72 0.1669
2015-04-17 2015-03-31 13F SOUTHERN COMMON STOCK 842587107 18,340 510 2.86 812 -7.31 0.1667
2015-01-21 2014-12-31 13F SOUTHERN COMMON STOCK 842587107 17,830 635 3.69 876 16.64 0.1830
2014-10-20 2014-09-30 13F SOUTHERN COMMON STOCK 842587107 17,195 720 4.37 751 0.40 0.1968
2014-07-23 2014-06-30 13F SOUTHERN COMMON STOCK 842587107 16,475 1,325 8.75 748 12.31 0.1941
2014-05-09 2014-03-31 13F SOUTHERN COMMON STOCK 842587107 15,150 1,375 9.98 666 17.46 0.1771
2014-02-14 2013-12-31 13F SOUTHERN COMMON STOCK 842587107 13,775 -105 -0.76 567 -0.87 0.1540
2013-11-12 2013-09-30 13F SOUTHERN COMMON STOCK 842587107 13,880 2,410 21.01 572 13.04 0.1682
2013-08-06 2013-06-30 13F SOUTHERN COMMON STOCK 842587107 11,470 11,470 506 0.1560
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.