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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, Q2 2026

Institutional positions in Southern Co as of Jun 30, 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

Q3 2026 data is still coming in: 13 institutions have reported holding SO so far. See Q3 2026

Institutional holders
2,371
+33 vs. Q1 2026
Shares held
834.3M
+47.0M (+6.0%) vs. Q1 2026
Total value
$79.9B
+$3.90B (+5.1%) vs. Q1 2026
New holders
147
1,106 more added
Sold out
114
730 more reduced

29 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 2,371 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 heldQ2 2026: $79.9B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Southern Co; share changes are against Q1 2026.

Institutions holding SO in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
California State Teachers Retirement System1,312,265$125.6M0.12%+35,357+2.8%Added
Manufacturers Life Insurance Company, The1,347,359$129.0M0.10%−38,862−2.8%Reduced
Confluence Investment Management LLC1,370,593$131.2M2.05%−51,278−3.6%Reduced
Colony Group, LLC1,407,819$134.7M0.14%−54,362−3.7%Reduced
Canada Pension Plan Investment Board1,457,085$139.5M0.08%+1,413,514+3,244.2%Added
Principal Financial Group Inc1,462,913$140.0M0.07%+17,148+1.2%Added
HighTower Advisors, LLC1,476,938$141.4M0.14%−38,891−2.6%Reduced
Cbre Clarion Securities LLC1,496,314$143.2M1.99%+751,187+100.8%Added
Empower Advisory Group, LLC1,634,931$156.5M0.37%+51,640+3.3%Added
Jupiter Topco LLC1,642,660$157.2M0.06%+1,642,660New
BNP Paribas Arbitrage, SA1,652,536$158.2M0.08%+619,724+60.0%Added
Soroban Capital Partners LP1,688,287$161.6M1.14%−687,224−28.9%Reduced
Natixis Advisors, L.P.1,697,019$162.4M0.18%+550,548+48.0%Added
Energy Income Partners, LLC1,735,602$166.1M2.61%+18,760+1.1%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys1,796,076$171.9M0.83%−158,989−8.1%Reduced
Jennison Associates LLC1,870,949$179.1M0.11%−59,466−3.1%Reduced
Pinnacle Financial Partners, Inc.1,932,339$184.9M1.26%+8,447+0.4%Added
Federated Hermes, Inc.1,936,635$185.4M0.27%+46,883+2.5%Added
Rhumbline Advisers1,967,290$188.3M0.14%+44,819+2.3%Added
HSBC Holdings PLC1,992,743$191.1M0.09%+242,689+13.9%Added
California Public Employees Retirement System2,032,644$194.5M0.11%−65,760−3.1%Reduced
Ensign Peak Advisors, Inc2,320,369$222.1M0.37%+64,347+2.9%Added
Vanguard Asset Management, Ltd2,392,608$229.0M0.15%+323,365+15.6%Added
First Trust Advisors LP2,431,833$232.8M0.14%+1,688,875+227.3%Added
Vanguard Global Advisers, LLC2,434,744$233.0M0.11%+25,113+1.0%Added
Citigroup Inc2,464,771$235.9M0.11%−149,079−5.7%Reduced
Sumitomo Mitsui Trust Holdings, Inc.2,492,383$238.5M0.14%+52,894+2.2%Added
Envestnet Asset Management Inc2,513,008$240.5M0.06%+67,290+2.8%Added
Barclays PLC2,701,178$258.5M0.08%−1,863,313−40.8%Reduced
Dimensional Fund Advisors LP2,753,892$263.6M0.05%+98,848+3.7%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.2,766,994$264.8M0.15%+266,285+10.6%Added
Healthcare of Ontario Pension Plan Trust Fund2,856,478$273.4M0.39%+2,787,319+4,030.3%Added
Bank of Montreal2,860,777$273.8M0.10%+1,138,795+66.1%Added
National Pension Service2,932,978$280.7M0.18%+54,111+1.9%Added
Deutsche Bank AG2,955,110$282.8M0.08%+837,840+39.6%Added
Mawer Investment Management Ltd.3,023,312$289.4M1.97%−398,445−11.6%Reduced
Swiss National Bank3,179,600$304.3M0.16%−51,800−1.6%Reduced
LPL Financial LLC3,203,334$306.6M0.07%+132,661+4.3%Added
Raymond James Financial Inc3,306,209$316.4M0.09%+153,807+4.9%Added
UBS Group AG3,702,217$354.3M0.06%−374,135−9.2%Reduced
Pictet Asset Management Holding SA3,766,323$360.5M0.34%−470,170−11.1%Reduced
Nuveen, LLC3,967,302$379.7M0.09%+76,731+2.0%Added
Wells Fargo & Company4,306,728$412.2M0.07%+51,891+1.2%Added
Amundi4,447,873$425.7M0.10%+1,123,457+33.8%Added
Wellington Management Group LLP5,519,410$528.3M0.09%+1,003,680+22.2%Added
Invesco Ltd.5,577,317$533.8M0.04%+39,318+0.7%Added
UBS Asset Management Americas Inc5,681,674$543.8M0.10%+508,149+9.8%Added
Boston Partners6,174,426$591.1M0.53%+6,133,722+15,069.1%Added
Vanguard Fiduciary Trust Co6,330,286$605.9M0.13%+133,202+2.1%Added
Bank of New York Mellon Corp7,278,460$696.6M0.11%−1560.0%Reduced
Charles Schwab Investment Management Inc7,386,604$707.0M0.09%+275,333+3.9%Added
Legal & General Group Plc7,703,017$737.3M0.15%−145,265−1.9%Reduced
Bank of America Corp8,392,512$803.2M0.05%+11,920+0.1%Added
Royal Bank of Canada8,721,450$834.7M0.14%−31,725−0.4%Reduced
Ameriprise Financial Inc9,568,912$915.8M0.19%+132,926+1.4%Added
Northern Trust Corp9,755,332$933.7M0.11%−72,094−0.7%Reduced
Morgan Stanley13,539,685$1.30B0.07%+624,619+4.8%Added
Massachusetts Financial Services Co13,831,354$1.32B0.42%−1,764,446−11.3%Reduced
Norges Bank14,358,862$1.37B0.14%+14,358,862New
Goldman Sachs Group Inc14,582,492$1.40B0.15%+8,740,569+149.6%Added
Franklin Resources Inc16,561,908$1.59B0.34%−247,401−1.5%Reduced
FMR LLC22,537,244$2.16B0.09%−350,690−1.5%Reduced
Vanguard Portfolio Management LLC27,023,691$2.59B0.12%+886,834+3.4%Added
Geode Capital Management, LLC29,315,285$2.82B0.15%+960,236+3.4%Added
JPMorgan Chase & Co32,778,201$3.17B0.19%−10,559,549−24.4%Reduced
Price T Rowe Associates Inc46,415,904$4.44B0.44%+9,990,378+27.4%Added
Capital World Investors62,518,698$5.98B0.71%+6,278,825+11.2%Added
State Street Corp64,809,708$6.20B0.18%+1,829,620+2.9%Added
Vanguard Capital Management LLC73,665,124$7.05B0.15%+2,125,979+3.0%Added
BlackRock, Inc.92,990,716$8.90B0.13%+2,622,013+2.9%Added
St. Louis Trust Co3,500––00.0%Unchanged
Capital Research Global Investors0$00.00%−2,614,540−100.0%Sold out
Adage Capital Partners GP, L.L.C.0$00.00%−1,186,900−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−866,507−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−834,955−100.0%Sold out
Renaissance Technologies LLC0$00.00%−431,600−100.0%Sold out
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund0$00.00%−207,650−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−180,786−100.0%Sold out
Biondo Investment Advisors, LLC0$00.00%−139,164−100.0%Sold out
Trexquant Investment LP0$00.00%−97,238−100.0%Sold out
Mizuho Securities USA LLC0$00.00%−66,567−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−49,581−100.0%Sold out
Jain Global LLC0$00.00%−46,624−100.0%Sold out
Tortoise Capital Advisors, L.L.C.0$00.00%−42,495−100.0%Sold out
Wolverine Asset Management LLC0$00.00%−38,380−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−31,084−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−29,968−100.0%Sold out
Banque Pictet & Cie SA0$00.00%−27,427−100.0%Sold out
BlueCrest Capital Management Ltd0$00.00%−25,962−100.0%Sold out
M Holdings Securities, Inc.0$00.00%−24,753−100.0%Sold out
Applied Finance Capital Management, LLC0$00.00%−19,366−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−17,330−100.0%Sold out
Twin Tree Management, LP0$00.00%−14,377−100.0%Sold out
Ontario Teachers Pension Plan Board0$00.00%−13,882−100.0%Sold out
Empire Financial Management Company, LLC0$00.00%−13,667−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−13,020−100.0%Sold out
Tradewinds, LLC.0$00.00%−11,550−100.0%Sold out
Resolution Capital Ltd0$00.00%−11,400−100.0%Sold out
Polymer Capital Management (US) LLC0$00.00%−11,098−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−10,498−100.0%Sold out