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SO · Southern Co · Holdings

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$87.04 +0.87 (+1.01%) At close · Oct 12
Market Cap
$97.14B
Shares
1.13B
Volume · Oct 12 3.39M Avg daily vol (3M) 5.66M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 2,380
Total Value: $82,414,152,785
Total Shares: 891,925,058
Showing 1–100 of 2,469 holdings by value · page 1 of 25

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 2,391 13F filers
Top Holder
10.9%
Sep 2023 → Jun 2026 · range 10.9% – 14.3%
of institutional value
Top 5
40.2%
Sep 2023 → Jun 2026 · range 40.2% – 44.9%
of institutional value
Top 10
55.5%
Sep 2023 → Jun 2026 · range 55.5% – 59.9%
of institutional value
HHI
412
Sep 2023 → Jun 2026 · range 412 – 519
Broadly held
Showing 100 of 2,469
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Holder Value (USD) % of 13F Shares Open

Showing the top 100 of 2,469 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 92122 CUSIP 842587107 13F (30d) 145 filings 127 filers Visit website Investor relations