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Ameren Corp
$113.19 -1.24 (-1.08%) At close · Jul 8
Market Cap
$30.93B
Shares
276,751,616

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.

The Jun 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.
Holders: 923
Total Value: $24,003,922,908
Total Shares: 218,368,588
Showing 1–100 of 932 holdings by value · page 1 of 10

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 923 13F filers
Top Holder
10.9%
Jun 2023 → Mar 2026 · range 10.9% – 16.1%
of institutional value
Top 5
39.3%
Jun 2023 → Mar 2026 · range 39.3% – 50.4%
of institutional value
Top 10
52.9%
Jun 2023 → Mar 2026 · range 52.9% – 62.4%
of institutional value
HHI
411
Jun 2023 → Mar 2026 · range 411 – 627
Broadly held
Showing 100 of 932
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1002910 CUSIP 023608102 13F (30d) 33 filings 30 filers Visit website Investor relations