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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, Q3 2025

Institutional positions in Southern Co as of Sep 30, 2025. 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
2,222
+73 vs. Q2 2025
Shares held
786.7M
+25.3M (+3.3%) vs. Q2 2025
Total value
$74.6B
+$5.04B (+7.3%) vs. Q2 2025
New holders
167
937 more added
Sold out
94
733 more reduced

35 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 2,222 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 heldQ3 2025: $74.6B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Southern Co; share changes are against Q2 2025.

Institutions holding SO in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Steward Partners Investment Advisory, LLC176,142$16.7M0.10%+7,396+4.4%Added
Police & Firemen's Retirement System of New Jersey177,332$16.8M0.14%+9,739+5.8%Added
Mirae Asset Global ETFs Holdings Ltd.180,075$17.1M0.03%+15,119+9.2%Added
Kayne Anderson Rudnick Investment Management LLC181,861$17.2M0.04%+1,052+0.6%Added
Utah Retirement Systems181,993$17.2M0.17%+1,073+0.6%Added
DekaBank Deutsche Girozentrale184,531$17.3M0.03%00.0%Unchanged
Allworth Financial LP183,046$17.3M0.08%+4,263+2.4%Added
HRT Financial LP184,613$17.5M0.06%+184,613New
Nichols & Pratt Advisers LLP186,548$17.7M1.12%+438+0.2%Added
Leavell Investment Management, Inc.188,286$17.8M0.75%−3,286−1.7%Reduced
HB Wealth Management, LLC190,520$18.1M0.12%+27,914+17.2%Added
Benjamin Edwards Inc194,448$18.4M0.21%+44,370+29.6%Added
Dai-Ichi Life Insurance Company, Ltd196,503$18.6M0.47%+32,035+19.5%Added
Regions Financial Corp196,636$18.6M0.12%−35,432−15.3%Reduced
UBS Oconnor LLC201,920$19.1M0.58%−24,215−10.7%Reduced
CWA Asset Management Group, LLC202,013$19.1M0.71%+13,555+7.2%Added
Calamos Advisors LLC204,295$19.4M0.08%−544−0.3%Reduced
Sanibel Captiva Trust Company, Inc.206,331$19.6M0.56%−1,806−0.9%Reduced
Tiaa Trust, National Association206,340$19.6M0.05%+15,373+8.1%Added
ProShare Advisors LLC207,170$19.6M0.04%−6,728−3.1%Reduced
Carnegie Capital Asset Management, LLC207,350$19.7M0.37%+2,783+1.4%Added
Savant Capital, LLC210,558$20.0M0.12%−4,372−2.0%Reduced
Northwestern Mutual Wealth Management Co210,903$20.0M0.01%−2,348−1.1%Reduced
iA Global Asset Management Inc.211,178$20.0M0.27%−16,724−7.3%Reduced
Amalgamated Bank213,312$20.2M0.14%−3,481−1.6%Reduced
Calamos Wealth Management LLC220,155$20.9M0.76%−5,512−2.4%Reduced
Midwest Trust Co223,306$21.2M0.28%−2,466−1.1%Reduced
Richard C. Young & CO., LTD.223,975$21.2M1.97%−1,190−0.5%Reduced
Rockefeller Capital Management L.P.224,041$21.2M0.04%−5,139−2.2%Reduced
Foundations Investment Advisors, LLC224,580$21.3M0.31%+21,271+10.5%Added
Comerica Bank229,892$21.8M0.08%−17,977−7.3%Reduced
Fukoku Mutual Life Insurance Co230,928$21.9M1.35%+140+0.1%Added
O'Shaughnessy Asset Management, LLC232,188$22.0M0.13%−12,889−5.3%Reduced
Cerity Partners LLC233,670$22.2M0.04%+6,139+2.7%Added
FIL Ltd234,123$22.2M0.02%−39,361−14.4%Reduced
Retirement Systems of Alabama234,659$22.2M0.07%−1,178−0.5%Reduced
GWM Advisors LLC234,749$22.2M0.10%+26,361+12.6%Added
Public Sector Pension Investment Board237,221$22.5M0.08%+11,059+4.9%Added
National Bank of Canada239,773$22.7M0.03%−208,425−46.5%Reduced
Warren Averett Asset Management, LLC240,397$22.8M0.23%+14,163+6.3%Added
Becker Capital Management Inc240,492$22.8M0.67%+6,440+2.8%Added
Mercer Global Advisors Inc243,108$23.0M0.04%+1,637+0.7%Added
CI Private Wealth, LLC243,665$23.1M0.04%+15,577+6.8%Added
Edgar Lomax Co246,205$23.3M1.83%−72,450−22.7%Reduced
IFM Investors Pty Ltd252,995$23.9M0.21%−5,174−2.0%Reduced
MAI Capital Management252,791$24.0M0.15%+14,498+6.1%Added
Swiss Life Asset Management Ltd257,379$24.4M0.13%−5,909−2.2%Reduced
Crossmark Global Holdings, Inc.257,740$24.4M0.37%+7,539+3.0%Added
Ilmarinen Mutual Pension Insurance Co259,000$24.5M0.18%+31,000+13.6%Added
Hennessy Advisors Inc259,200$24.6M0.85%−23,700−8.4%Reduced
STRS Ohio259,757$24.6M0.09%−68,945−21.0%Reduced
Huntington National Bank261,211$24.8M0.15%+10,660+4.3%Added
Crawford Investment Counsel Inc261,255$24.8M0.41%+570+0.2%Added
MetLife Investment Management272,971$25.9M0.12%−7,119−2.5%Reduced
Arrowstreet Capital, Limited Partnership278,652$26.4M0.02%+12,292+4.6%Added
Czech National Bank279,389$26.5M0.18%+10,741+4.0%Added
Brandywine Global Investment Management, LLC279,534$26.5M0.18%+530+0.2%Added
Zurcher Kantonalbank (Zurich Cantonalbank)282,182$26.7M0.06%+22,482+8.7%Added
Captrust Financial Advisors283,538$26.9M0.05%−13,084−4.4%Reduced
Hancock Whitney Corp285,289$27.0M0.49%−4,878−1.7%Reduced
American Century Companies Inc286,533$27.2M0.01%+1,390+0.5%Added
State of Michigan Retirement System297,523$28.2M0.14%−1,300−0.4%Reduced
Illinois Municipal Retirement Fund298,368$28.3M0.36%+5,854+2.0%Added
Quantinno Capital Management LP298,487$28.3M0.08%+96,611+47.9%Added
Brinker Capital Investments, LLC299,202$28.4M0.22%+7,821+2.7%Added
Adage Capital Partners GP, L.L.C.300,300$28.5M0.05%−706,300−70.2%Reduced
D. E. Shaw & Co., Inc.300,407$28.5M0.02%+186,215+163.1%Added
Squarepoint Ops LLC300,699$28.5M0.06%+156,594+108.7%Added
Advisors Capital Management, LLC302,490$28.7M0.35%+2,142+0.7%Added
Teacher Retirement System of Texas308,461$29.2M0.12%−123,715−28.6%Reduced
Baird Financial Group, Inc.312,481$29.6M0.05%−1,164−0.4%Reduced
Voya Investment Management LLC312,484$29.6M0.03%−34,793−10.0%Reduced
Assenagon Asset Management S.A.317,863$30.1M0.04%−882,761−73.5%Reduced
Arizona State Retirement System321,030$30.4M0.16%+388+0.1%Added
Bank Julius Baer & Co. Ltd, Zurich322,282$30.5M0.09%+16,474+5.4%Added
Forsta Ap-Fonden334,700$31.7M0.19%+49,600+17.4%Added
Kestra Advisory Services, LLC336,580$31.9M0.15%+62,726+22.9%Added
Cahaba Wealth Management, Inc.343,359$32.5M2.36%−7,490−2.1%Reduced
GW Henssler & Associates Ltd345,775$32.8M1.64%−7,230−2.0%Reduced
Sanctuary Advisors, LLC350,149$33.2M0.19%−48,760−12.2%Reduced
Voloridge Investment Management, LLC352,687$33.4M0.11%+352,687New
Ceredex Value Advisors LLC352,885$33.4M0.78%−6,283−1.7%Reduced
Allspring Global Investments Holdings, LLC364,395$34.5M0.06%−800−0.2%Reduced
Janney Montgomery Scott LLC366,895$34.8M0.08%+7,344+2.0%Added
Millennium Management LLC367,920$34.9M0.03%+95,144+34.9%Added
MML Investors Services, LLC368,328$34.9M0.09%−24,006−6.1%Reduced
Aptus Capital Advisors, LLC381,350$36.1M0.33%+7,912+2.1%Added
State of New Jersey Common Pension Fund D382,239$36.2M0.13%+9,417+2.5%Added
State of Tennessee, Treasury Department389,262$36.9M0.12%+5,921+1.5%Added
AQR Capital Management LLC393,337$37.0M0.02%−43,810−10.0%Reduced
CIBC Asset Management Inc390,764$37.0M0.11%+1,130+0.3%Added
Mariner, LLC392,054$37.2M0.05%−16,051−3.9%Reduced
Nomura Asset Management Co Ltd393,127$37.3M0.10%+4,117+1.1%Added
Gabelli Funds LLC401,500$38.1M0.26%−3,050−0.8%Reduced
Magellan Asset Management Ltd403,257$38.2M0.45%+48,850+13.8%Added
SEI Investments Co403,812$38.3M0.04%−46,148−10.3%Reduced
Eventide Asset Management, LLC406,399$38.4M0.63%+14,287+3.6%Added
TD Asset Management Inc409,080$38.8M0.03%+5,529+1.4%Added
Van Eck Associates Corp420,169$39.8M0.04%+25,376+6.4%Added
US Bancorp420,876$39.9M0.05%−4,420−1.0%Reduced