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AEE · Ameren Corp

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$107.75 +0.92 (+0.86%) At close · Aug 26
Market Cap
$29.83B
Shares
276.84M

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.

Holders: 946
Total Value: $27,657,312,828
Total Shares: 244,666,622

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 946 13F filers · Δ vs Mar 31, 2026
Top Holder
10.6%
Sep 2023 → Jun 2026 · range 10.2% – 16.1%
+0.4 pts
Top 5
39.1%
Sep 2023 → Jun 2026 · range 39.1% – 50.7%
−1.0 pts
Top 10
54.3%
Sep 2023 → Jun 2026 · range 54.0% – 62.4%
+0.3 pts
HHI
401
Sep 2023 → Jun 2026 · range 401 – 633
Broadly held−3

Quarterly Activity

vs Mar 31, 2026
New
110
Increased
400
Decreased
245
Sold Out
93
Unchanged
191
Holder count: +17
Institutional value: +7.5%
Shares held: +4.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 955
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1002910 CUSIP 023608102 13F (30d) 693 filings 690 filers Visit website Investor relations