The Southern Company
DE ˙ XTRA ˙ US8425871071
77,42 € ↑0,20 (0,26%)
2026-06-03
DEL PRIS
SecurityDE:SOT / The Southern Company
InstitutionAtlantic Trust, LLC
Latest Disclosed Ownership7,245 shares
Latest Disclosed Value $ 699,274
Atlantic Trust, LLC reports 0.67% decrease in ownership of SOT / The Southern Company

On May 6, 2026 - Atlantic Trust, LLC filed a 13F-HR form disclosing ownership of 7,245 shares of The Southern Company (DE:SOT) valued at $611,913 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 7,294 shares of The Southern Company. This represents a change in shares of -0.67% during the quarter. The current value of the position is $560,908 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)
2026-05-06 2026-03-31 13F SOUTHERN COM 842587107 7,245 -49 -0.67 699 9.91 0.1140
2026-02-09 2025-12-31 13F SOUTHERN COM 842587107 7,294 0 0.00 636 -7.96 0.1001
2025-11-10 2025-09-30 13F SOUTHERN COM 842587107 7,294 -93 -1.26 691 1.92 0.1181
2025-08-08 2025-06-30 13F SOUTHERN COM 842587107 7,387 210 2.93 678 2.88 0.1283
2025-05-09 2025-03-31 13F Southern Com 842587107 7,177 238 3.43 660 15.41 0.1469
2025-02-10 2024-12-31 13F SOUTHERN COM 842587107 6,939 32 0.46 571 -8.20 0.1234
2024-11-13 2024-09-30 13F SOUTHERN COM 842587107 6,907 30 0.44 623 16.70 0.1491
2024-08-09 2024-06-30 13F SOUTHERN COM 842587107 6,877 -1,151 -14.34 533 -7.30 0.1327
2024-05-10 2024-03-31 13F SOUTHERN COM 842587107 8,028 -2,977 -27.05 576 -25.42 0.1506
2024-02-06 2023-12-31 13F SOUTHERN COM 842587107 11,005 47 0.43 772 8.74 0.2110
2023-11-13 2023-09-30 13F SOUTHERN COM 842587107 10,958 50 0.46 709 -7.44 0.2333
2023-08-08 2023-06-30 13F SOUTHERN COM 842587107 10,908 -652 -5.64 766 -4.73 0.2460
2023-05-10 2023-03-31 13F Southern COM 842587107 11,560 50 0.43 804 0.2566
2023-02-01 2022-12-31 13F SOUTHERN COM 842587107 11,510 56 0.49 1 -100.00 0.2740
2022-11-14 2022-09-30 13F SOUTHERN COM 842587107 11,454 11,263 5,896.86 779 5,464.29 0.2711
2022-08-11 2022-06-30 13F Southern COM 842587107 191 0 0.00 14 0.00 0.0106
2022-05-16 2022-03-31 13F Southern COM 842587107 191 0 0.00 14 7.69 0.0091
2022-02-09 2021-12-31 13F Southern Com 842587107 191 0 0.00 13 8.33 0.0077
2021-11-02 2021-09-30 13F Southern Com 842587107 191 0 0.00 12 0.00 0.0076
2021-08-12 2021-06-30 13F Southern Com 842587107 191 191 12 0.0078
2021-04-30 2021-03-31 13F Southern Com 842587107 0 -191 -100.00 0 -100.00
2021-02-16 2020-12-31 13F Southern Com 842587107 191 0 0.00 12 20.00 0.0071
2020-10-23 2020-09-30 13F Southern Com 842587107 191 191 0.00 10 -16.67 0.0079
2020-02-03 2019-12-31 13F Southern Com 842587107 0 -503 -100.00 0 -100.00
2019-11-07 2019-09-30 13F Southern Com 842587107 503 0 0.00 31 10.71 0.0242
2019-07-31 2019-06-30 13F Southern Com 842587107 503 503 0.00 28 -9.68 0.0224
2019-05-13 2019-03-31 13F Southern Com 842587107 0 -1,174 -100.00 0 -100.00
2019-02-13 2018-12-31 13F/A-1 Southern Com 842587107 1,174 0 0.00 52 1.96 0.0483
2019-02-13 2018-12-31 13F Southern Com 842587107 1,174 52
2018-11-15 2018-09-30 13F Southern COM 842587107 1,174 -960 -44.99 51 -48.48 0.0391
2018-08-20 2018-06-30 13F Southern Com 842587107 2,134 -371 -14.81 99 -11.61 0.0884
2018-05-15 2018-03-31 13F Southern COM 842587107 2,505 -8,185 -76.57 112 -78.21 0.0961
2018-02-14 2017-12-31 13F Southern Com 842587107 10,690 -1,000 -8.55 514 -10.45 0.3513
2017-11-17 2017-09-30 13F Southern Com 842587107 11,690 -846 -6.75 574 37.65 0.4270
2017-08-21 2017-06-30 13F Southern Com 842587107 12,536 1,565 14.26 417 -23.63 0.3291
2017-06-19 2017-03-31 13F Southern COM 842587107 10,971 3,535 47.54 546 49.18 0.4520
2017-06-14 2016-12-31 13F Southern COM 842587107 7,436 7,436 366 0.3288
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.