The Southern Company
MX ˙ BMV ˙ US8425871071
SecurityMX:SO / The Southern Company
InstitutionFranklin Resources Inc
Latest Disclosed Ownership16,809,309 shares
Latest Disclosed Value $ 1,622,434,519
Franklin Resources Inc reports 9.57% increase in ownership of SO / The Southern Company

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 16,809,309 shares of The Southern Company (MX:SO) valued at $1,622,434,519 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 15,340,744 shares of The Southern Company. This represents a change in shares of 9.57% during the quarter.

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)
2026-05-13 2026-03-31 13F SOUTHERN COM 842587107 16,809,309 1,468,565 9.57 1,622,435 21.28 0.0646
2026-02-11 2025-12-31 13F SOUTHERN COM 842587107 15,340,744 1,377,723 9.87 1,337,713 1.09 0.3282
2025-11-13 2025-09-30 13F SOUTHERN COM 842587107 13,963,021 -52,700 -0.38 1,323,275 2.81 0.3300
2025-08-12 2025-06-30 13F SOUTHERN COM 842587107 14,015,721 -929,994 -6.22 1,287,064 -6.34 0.3412
2025-05-13 2025-03-31 13F SOUTHERN COM 842587107 14,945,715 846,287 6.00 1,374,259 18.40 0.3954
2025-02-12 2024-12-31 13F SOUTHERN COM 842587107 14,099,428 -50,974 -0.36 1,160,665 -8.70 0.3223
2024-11-27 2024-09-30 13F/A-1 SOUTHERN COM 842587107 14,150,402 -2,160,396 -13.25 1,271,272 0.48 0.3570
2024-11-12 2024-09-30 13F SOUTHERN COM 842587107 14,150,402 -2,160,396 1,271,272 0.0612
2024-08-14 2024-06-30 13F SOUTHERN COM 842587107 16,310,798 -619,077 -3.66 1,265,229 4.17 0.3890
2024-05-13 2024-03-31 13F SOUTHERN COM 842587107 16,929,875 1,271,005 8.12 1,214,549 10.61 0.3846
2024-02-09 2023-12-31 13F SOUTHERN COM 842587107 15,658,870 -25,922 -0.17 1,098,000 8.16 0.5134
2023-11-13 2023-09-30 13F SOUTHERN COM 842587107 15,684,792 -386,126 -2.40 1,015,120 -10.09 0.5158
2023-08-11 2023-06-30 13F SOUTHERN COM 842587107 16,070,918 642,737 4.17 1,128,982 5.17 0.5367
2023-05-12 2023-03-31 13F SOUTHERN COM 842587107 15,428,181 349,353 2.32 1,073,493 -0.31 0.5387
2023-02-10 2022-12-31 13F SOUTHERN COM 842587107 15,078,828 140,698 0.94 1,076,779 6.00 0.5597
2022-11-14 2022-09-30 13F SOUTHERN COM 842587107 14,938,130 -1,534,087 -9.31 1,015,794 -13.52 0.5535
2022-08-11 2022-06-30 13F SOUTHERN COM 842587107 16,472,217 -7,268,774 -30.62 1,174,634 -31.77 0.5825
2022-05-13 2022-03-31 13F SOUTHERN COM 842587107 23,740,991 -4,880,348 -17.05 1,721,459 -12.30 0.6879
2022-02-11 2021-12-31 13F SOUTHERN COM 842587107 28,621,339 -1,142,671 -3.84 1,962,852 6.42 0.7079
2021-11-12 2021-09-30 13F SOUTHERN COM 842587107 29,764,010 1,182,130 4.14 1,844,476 6.65 0.6945
2021-08-13 2021-06-30 13F SOUTHERN COM 842587107 28,581,880 -2,332,155 -7.54 1,729,489 -10.00 0.6608
2021-05-13 2021-03-31 13F SOUTHERN COM 842587107 30,914,035 -1,141,534 -3.56 1,921,616 -2.42 0.7819
2021-02-10 2020-12-31 13F SOUTHERN COM 842587107 32,055,569 4,201,859 15.09 1,969,175 30.39 0.8334
2020-11-12 2020-09-30 13F SOUTHERN COM 842587107 27,853,710 1,191,224 4.47 1,510,229 1.55 0.7313
2020-08-13 2020-06-30 13F SOUTHERN COM 842587107 26,662,486 -411,270 -1.52 1,487,233 1.46 0.7662
2020-05-13 2020-03-31 13F SOUTHERN COM 842587107 27,073,756 441,612 1.66 1,465,774 -13.60 0.9785
2020-03-11 2019-12-31 13F/A-1 SOUTHERN COM 842587107 26,632,144 -3,364,548 -11.22 1,696,468 -8.44 0.8913
2020-02-12 2019-12-31 13F SOUTHERN COM 842587107 26,632,144 -3,364,548 1,696,468 214,287.1347
2019-11-14 2019-09-30 13F SOUTHERN COM 842587107 29,996,692 -270,894 -0.89 1,852,896 10.74 1.0063
2019-08-14 2019-06-30 13F SOUTHERN COM 842587107 30,267,586 -2,868,042 -8.66 1,673,192 -2.29 0.8900
2019-05-15 2019-03-31 13F/A-1 SOUTHERN COM 842587107 33,135,628 -253,307 -0.76 1,712,449 16.78 0.9172
2019-05-14 2019-03-31 13F SOUTHERN COM 842587107 33,135,628 -253,307 1,712,449
2019-02-12 2018-12-31 13F SOUTHERN COM 842587107 33,388,935 -6,245,286 -15.76 1,466,442 -15.14 0.8850
2018-11-13 2018-09-30 13F SOUTHERN COM 842587107 39,634,221 -300,020 -0.75 1,728,053 -6.56 0.8603
2018-08-14 2018-06-30 13F SOUTHERN COM 842587107 39,934,241 971,778 2.49 1,849,355 6.28 0.9487
2018-05-10 2018-03-31 13F SOUTHERN COM 842587107 38,962,463 17,572,472 82.15 1,740,063 69.16 0.8821
2018-02-14 2017-12-31 13F SOUTHERN COM 842587107 21,389,991 -998,225 -4.46 1,028,645 -6.50 0.4936
2017-11-13 2017-09-30 13F SOUTHERN COM 842587107 22,388,216 8,377 0.04 1,100,157 2.67 0.5393
2017-08-10 2017-06-30 13F SOUTHERN COM 842587107 22,379,839 770,413 3.57 1,071,547 -0.39 0.5343
2017-05-12 2017-03-31 13F SOUTHERN COM 842587107 21,609,426 5,153,748 31.32 1,075,718 32.89 0.5460
2017-02-14 2016-12-31 13F SOUTHERN COM 842587107 16,455,678 2,934,616 21.70 809,455 16.70 0.4191
2016-11-14 2016-09-30 13F SOUTHERN COM 842587107 13,521,062 1,160,881 9.39 693,631 4.64 0.3627
2016-08-11 2016-06-30 13F SOUTHERN COM 842587107 12,360,181 -390,465 -3.06 662,876 0.50 0.3566
2016-05-10 2016-03-31 13F SOUTHERN COM 842587107 12,750,646 -8,488,278 -39.97 659,590 -33.63 0.3501
2016-04-27 2015-12-31 13F/A-1 SOUTHERN COM 842587107 21,238,924 -9,982,422 -31.97 993,769 -28.79 0.5031
2016-02-12 2015-12-31 13F SOUTHERN COM 842587107 21,238,924 993,769
2015-11-10 2015-09-30 13F SOUTHERN COM 842587107 31,221,346 -3,317,790 -9.61 1,395,595 -3.57 0.6893
2015-08-12 2015-06-30 13F SOUTHERN COM 842587107 34,539,136 3,604,150 11.65 1,447,190 5.65 0.6569
2015-05-14 2015-03-31 13F SOUTHERN COM 842587107 30,934,986 7,220 0.02 1,369,802 -9.81 0.6211
2015-02-10 2014-12-31 13F SOUTHERN COM 842587107 30,927,766 -6,492,761 -17.35 1,518,863 -7.01 0.6889
2014-11-12 2014-09-30 13F SOUTHERN COM 842587107 37,420,527 1,807,381 5.08 1,633,406 1.07 0.7450
2014-08-12 2014-06-30 13F SOUTHERN COM 842587107 35,613,146 107,080 0.30 1,616,125 3.59 0.7119
2014-05-13 2014-03-31 13F SOUTHERN COM 842587107 35,506,066 3,329,195 10.35 1,560,137 17.94 0.7367
2014-02-12 2013-12-31 13F SOUTHERN COM 842587107 32,176,871 6,991,155 27.76 1,322,792 27.54 0.6466
2013-11-14 2013-09-30 13F SOUTHERN COM 842587107 25,185,716 1,275,970 5.34 1,037,148 -1.70 0.5520
2013-08-09 2013-06-30 13F SOUTHERN COM 842587107 23,909,746 23,909,746 1,055,137 0.6024
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.