Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionAmundi
Latest Disclosed Ownership919,349 shares
Latest Disclosed Value $ 101,054,842
Amundi reports 105.99% increase in ownership of AEE / Ameren Corporation

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 919,349 shares of Ameren Corporation (US:AEE) valued at $101,054,842 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 446,301 shares of Ameren Corporation. This represents a change in shares of 105.99% during the quarter. The current value of the position is $97,662,444 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AMEREN COM 023608102 919,349 473,048 105.99 101,055 126.75 0.0116
2026-02-17 2025-12-31 13F AMEREN COM 023608102 446,301 -23,053 -4.91 44,568 -9.46 0.0121
2025-11-14 2025-09-30 13F AMEREN COM 023608102 469,354 149,502 46.74 49,226 61.19 0.0158
2025-08-13 2025-06-30 13F AMEREN COM 023608102 319,852 26,139 8.90 30,539 2.26 0.0105
2025-05-15 2025-03-31 13F AMEREN COM 023608102 293,713 -26,439 -8.26 29,865 4.53 0.0109
2025-02-07 2024-12-31 13F AMEREN COM 023608102 320,152 107,243 50.37 28,570 54.69 0.0099
2024-11-13 2024-09-30 13F AMEREN COM 023608102 212,909 -4,189 -1.93 18,470 20.57 0.0068
2024-08-14 2024-06-30 13F AMEREN COM 023608102 217,098 40,613 23.01 15,318 19.71 0.0059
2024-05-15 2024-03-31 13F AMEREN COM 023608102 176,485 -294,530 -62.53 12,797 -63.30 0.0055
2024-02-14 2023-12-31 13F AMEREN COM 023608102 471,015 41,704 9.71 34,865 4.18 0.0157
2023-11-14 2023-09-30 13F AMEREN COM 023608102 429,311 281,980 191.39 33,465 174.16 0.0164
2023-08-14 2023-06-30 13F AMEREN COM 023608102 147,331 -152,830 -50.92 12,206 -54.45 0.0062
2023-05-15 2023-03-31 13F AMEREN COM 023608102 300,161 -26,540 -8.12 26,795 -9.49 0.0144
2023-02-14 2022-12-31 13F AMEREN COM 023608102 326,701 -97,686 -23.02 29,606 -14.34 0.0162
2022-11-14 2022-09-30 13F AMEREN COM 023608102 424,387 -36,203 -7.86 34,562 -13.80 0.0205
2022-09-02 2022-06-30 13F/A-1 AMEREN COM 023608102 460,590 96,678 26.57 40,095 13.82 0.0322
2022-08-15 2022-06-30 13F AMEREN COM 023608102 460,590 96,678 40,095 0.0021
2022-05-16 2022-03-31 13F AMEREN COM 023608102 363,912 -111,628 -23.47 35,227 -16.64 0.0238
2022-02-14 2021-12-31 13F AMEREN COM 023608102 475,540 164,640 52.96 42,258 67.80 0.0268
2021-11-15 2021-09-30 13F AMEREN COM 023608102 310,900 -122,920 -28.33 25,183 73,967.65 0.0176
2021-08-16 2021-06-30 13F AMEREN COM 023608102 433,820 433,820 35 0.0241
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.