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Southern Co

SO
Exchange
NYSE
Industry
Electric Services
SEC CIK
0000092122

In the last 90 days, Southern Co insiders filed 0 open-market purchases and 6 sales; 2,371 institutions reported holding it in 13F filings for Q2 2026, worth $79.9B in total; no superinvestor holds it.

Other share classesSOJCSOJDSOJESOJFSOMN

13F holders, Q1 2026

Institutional positions in Southern Co as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
2,367
+130 vs. Q4 2025
Shares held
789.7M
+114.7M (+17.0%) vs. Q4 2025
Total value
$76.2B
+$17.3B (+29.4%) vs. Q4 2025
New holders
228
985 more added
Sold out
98
782 more reduced

36 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 2,367 institutions
Q1 2021: 1,491 institutionsQ2 2021: 1,508 institutionsQ3 2021: 1,492 institutionsQ4 2021: 1,654 institutionsQ1 2022: 1,700 institutionsQ2 2022: 1,683 institutionsQ3 2022: 1,661 institutionsQ4 2022: 1,737 institutionsQ1 2023: 1,706 institutionsQ2 2023: 1,728 institutionsQ3 2023: 1,713 institutionsQ4 2023: 1,838 institutionsQ1 2024: 1,825 institutionsQ2 2024: 1,888 institutionsQ3 2024: 2,010 institutionsQ4 2024: 2,126 institutionsQ1 2025: 2,207 institutionsQ2 2025: 2,184 institutionsQ3 2025: 2,222 institutionsQ4 2025: 2,273 institutionsQ1 2026: 2,367 institutionsQ2 2026: 2,371 institutions
Value heldQ1 2026: $76.2B
Q1 2021: $39.2BQ2 2021: $38.3BQ3 2021: $39.1BQ4 2021: $43.9BQ1 2022: $47.3BQ2 2022: $47.2BQ3 2022: $46.0BQ4 2022: $49.1BQ1 2023: $48.8BQ2 2023: $48.8BQ3 2023: $44.9BQ4 2023: $49.1BQ1 2024: $51.0BQ2 2024: $56.8BQ3 2024: $66.9BQ4 2024: $61.4BQ1 2025: $69.0BQ2 2025: $70.8BQ3 2025: $74.6BQ4 2025: $69.6BQ1 2026: $76.2BQ2 2026: $79.9B
Institutions holding SO and their total value by quarter
QuarterHoldersValue
Q2 20262,371$79.9B
Q1 20262,367$76.2B
Q4 20252,273$69.6B
Q3 20252,222$74.6B
Q2 20252,184$70.8B
Q1 20252,207$69.0B
Q4 20242,126$61.4B
Q3 20242,010$66.9B
Q2 20241,888$56.8B
Q1 20241,825$51.0B
Q4 20231,838$49.1B
Q3 20231,713$44.9B
Q2 20231,728$48.8B
Q1 20231,706$48.8B
Q4 20221,737$49.1B
Q3 20221,661$46.0B
Q2 20221,683$47.2B
Q1 20221,700$47.3B
Q4 20211,654$43.9B
Q3 20211,492$39.1B
Q2 20211,508$38.3B
Q1 20211,491$39.2B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Southern Co; share changes are against Q4 2025.

Institutions holding SO in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Adage Capital Partners GP, L.L.C.1,186,900$114.6M0.18%+1,186,900New
California State Teachers Retirement System1,276,908$123.2M0.13%−39,725−3.0%Reduced
Capital International Investors1,383,809$133.7M0.03%−9,860,243−87.7%Reduced
Manufacturers Life Insurance Company, The1,386,221$133.8M0.12%+13,853+1.0%Added
Confluence Investment Management LLC1,421,871$137.2M2.13%−63,705−4.3%Reduced
Principal Financial Group Inc1,445,765$139.5M0.07%−23,405−1.6%Reduced
Colony Group, LLC1,462,181$141.1M0.16%+46,735+3.3%Added
HighTower Advisors, LLC1,515,829$146.3M0.16%−31,046−2.0%Reduced
Empower Advisory Group, LLC1,583,291$152.8M0.40%+122,692+8.4%Added
Prudential Financial Inc1,590,591$153.5M0.19%+617,666+63.5%Added
Janus Henderson Group PLC1,713,552$165.4M0.08%+1,636,051+2,111.0%Added
Energy Income Partners, LLC1,716,842$165.7M2.67%−73,483−4.1%Reduced
Bank of Montreal1,721,982$166.2M0.07%−263,104−13.3%Reduced
HSBC Holdings PLC1,750,054$168.8M0.10%−98,656−5.3%Reduced
Federated Hermes, Inc.1,889,752$182.4M0.30%+103,312+5.8%Added
Rhumbline Advisers1,922,471$185.6M0.16%−21,437−1.1%Reduced
Pinnacle Financial Partners, Inc.1,923,892$185.7M1.42%+155,895+8.8%Added
Jennison Associates LLC1,930,415$186.3M0.13%+334,152+20.9%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys1,955,065$188.7M0.96%−114,631−5.5%Reduced
Vanguard Asset Management, Ltd2,069,243$199.7M0.17%+2,069,243New
California Public Employees Retirement System2,098,404$202.5M0.12%−771,087−26.9%Reduced
Deutsche Bank AG2,117,270$204.4M0.07%−646,778−23.4%Reduced
Ensign Peak Advisors, Inc2,256,022$217.8M0.41%−331,938−12.8%Reduced
Marshall Wace, LLP2,334,078$225.3M0.24%+1,613,556+223.9%Added
Soroban Capital Partners LP2,375,511$229.3M1.64%−3,718,097−61.0%Reduced
Vanguard Global Advisers, LLC2,409,631$232.6M0.12%+2,409,631New
Sumitomo Mitsui Trust Holdings, Inc.2,439,489$235.5M0.15%−147,638−5.7%Reduced
Envestnet Asset Management Inc2,445,718$236.1M0.06%+174,859+7.7%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.2,500,709$241.4M0.16%+166,692+7.1%Added
Citigroup Inc2,613,850$252.3M0.16%+676,226+34.9%Added
Capital Research Global Investors2,614,540$252.4M0.04%+1,789,386+216.9%Added
Dimensional Fund Advisors LP2,655,044$256.3M0.05%+82,941+3.2%Added
National Pension Service2,878,867$277.9M0.21%−21,483−0.7%Reduced
LPL Financial LLC3,070,673$296.4M0.08%+55,543+1.8%Added
Raymond James Financial Inc3,152,402$304.3M0.09%+57,320+1.9%Added
Swiss National Bank3,231,400$311.9M0.18%+216,900+7.2%Added
Amundi3,324,416$320.9M0.09%+1,567,638+89.2%Added
Mawer Investment Management Ltd.3,421,757$330.3M2.14%+1,653,984+93.6%Added
Nuveen, LLC3,890,571$375.5M0.10%−683,131−14.9%Reduced
UBS Group AG4,076,352$393.4M0.07%−444,788−9.8%Reduced
Pictet Asset Management Holding SA4,236,493$408.9M0.43%−28,854−0.7%Reduced
Wells Fargo & Company4,254,837$410.7M0.08%+244,331+6.1%Added
Wellington Management Group LLP4,515,730$435.9M0.08%+814,632+22.0%Added
Barclays PLC4,564,491$440.6M0.16%+173,427+3.9%Added
UBS Asset Management Americas Inc5,173,525$499.3M0.10%+53,920+1.1%Added
Invesco Ltd.5,537,999$534.5M0.05%+181,172+3.4%Added
Goldman Sachs Group Inc5,841,923$563.9M0.07%+828,293+16.5%Added
Vanguard Fiduciary Trust Co6,197,084$598.1M0.15%+6,197,084New
Charles Schwab Investment Management Inc7,111,271$686.4M0.10%+222,119+3.2%Added
Bank of New York Mellon Corp7,278,616$702.5M0.13%−173,377−2.3%Reduced
Legal & General Group Plc7,848,282$757.5M0.18%−576,553−6.8%Reduced
Bank of America Corp8,380,592$808.9M0.06%+392,210+4.9%Added
Royal Bank of Canada8,753,175$844.9M0.16%+821,071+10.4%Added
Ameriprise Financial Inc9,435,986$910.5M0.21%−37,136−0.4%Reduced
Northern Trust Corp9,827,426$948.5M0.13%+3,5760.0%Added
Morgan Stanley12,915,066$1.25B0.08%−233,173−1.8%Reduced
Massachusetts Financial Services Co15,595,800$1.50B0.51%−705,185−4.3%Reduced
Franklin Resources Inc16,809,309$1.62B0.40%+1,468,565+9.6%Added
FMR LLC22,887,934$2.21B0.12%−118,497−0.5%Reduced
Vanguard Portfolio Management LLC26,136,857$2.52B0.13%+26,136,857New
Geode Capital Management, LLC28,355,049$2.75B0.17%+1,095,924+4.0%Added
Price T Rowe Associates Inc36,425,526$3.52B0.41%+1,966,064+5.7%Added
JPMorgan Chase & Co43,337,750$4.20B0.29%−18,432,669−29.8%Reduced
Capital World Investors56,239,873$5.43B0.74%+15,097,797+36.7%Added
State Street Corp62,980,088$6.08B0.21%+1,489,394+2.4%Added
Vanguard Capital Management LLC71,539,145$6.90B0.17%+71,539,145New
BlackRock, Inc.90,368,703$8.72B0.15%+1,804,945+2.0%Added
Tudor Investment Corp Et Al0$00.00%−136,602−100.0%Sold out
Capital Innovations LLC0$00.00%−115,871−100.0%Sold out
HRT Financial LP0$00.00%−93,271−100.0%Sold out
J.W. Cole Advisors, Inc.0$00.00%−85,860−100.0%Sold out
Sculptor Capital LP0$00.00%−36,000−100.0%Sold out
Quest Partners LLC0$00.00%−35,023−100.0%Sold out
ABN AMRO Bank N.V.0$00.00%−32,215−100.0%Sold out
Clarkston Capital Partners, LLC0$00.00%−30,000−100.0%Sold out
Andra AP-fonden0$00.00%−29,240−100.0%Sold out
Matrix Trust Co0$00.00%−21,988−100.0%Sold out
S.E.E.D. Planning Group LLC0$00.00%−21,899−100.0%Sold out
Alberta Investment Management Corp0$00.00%−20,300−100.0%Sold out
IMC-Chicago, LLC0$00.00%−19,687−100.0%Sold out
Axxcess Wealth Management, LLC0$00.00%−17,848−100.0%Sold out
Aigen Investment Management, LP0$00.00%−15,230−100.0%Sold out
Diversify Advisory Services, LLC0$00.00%−14,332−100.0%Sold out
Grantham, Mayo, Van Otterloo & Co. LLC0$00.00%−13,534−100.0%Sold out
CSS LLC0$00.00%−11,156−100.0%Sold out
Sage Mountain Advisors LLC0$00.00%−10,965−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−8,325−100.0%Sold out
Ambassador Advisors, LLC0$00.00%−7,764−100.0%Sold out
Dockside LLC0$00.00%−7,058−100.0%Sold out
Tritonpoint Wealth, LLC0$00.00%−6,971−100.0%Sold out
Koss-Olinger Consulting, LLC0$00.00%−6,900−100.0%Sold out
TFR Capital, LLC.0$00.00%−6,875−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−5,565−100.0%Sold out
Asahi Life Asset Management Co., Ltd.0$00.00%−5,454−100.0%Sold out
AlphaGrep UK Ltd0$00.00%−5,077−100.0%Sold out
Green Harvest Asset Management LLC0$00.00%−5,056−100.0%Sold out
Worth Financial Advisory Group, LLC0$00.00%−4,857−100.0%Sold out
Wright Wealth LLC0$00.00%−4,721−100.0%Sold out
Farringdon Capital, Ltd.0$00.00%−4,684−100.0%Sold out
Cynosure Management, LLC0$00.00%−4,648−100.0%Sold out