아메렌 코퍼레이션
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionWorldquant Millennium Advisors Llc
Latest Disclosed Ownership189,177 shares
Latest Disclosed Value $ 20,794,336
Worldquant Millennium Advisors Llc reports 32.28% decrease in ownership of AEE / Ameren Corporation

On May 15, 2026 - Worldquant Millennium Advisors Llc filed a 13F-HR form disclosing ownership of 189,177 shares of Ameren Corporation (MX:AEE) valued at $20,794,336 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 279,360 shares of Ameren Corporation. This represents a change in shares of -32.28% during the quarter.

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.

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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 189,177 -90,183 -32.28 20,794 -25.46 0.0802
2026-02-17 2025-12-31 13F AMEREN COM 023608102 279,360 255 0.09 27,897 -4.24 0.1082
2025-11-14 2025-09-30 13F AMEREN COM 023608102 279,105 181,529 186.04 29,133 210.87 0.1259
2025-08-14 2025-06-30 13F AMEREN COM 023608102 97,576 -14,973 -13.30 9,371 -17.06 0.0466
2025-05-15 2025-03-31 13F AMEREN COM 023608102 112,549 -75,015 -39.99 11,300 -32.42 0.0712
2025-02-14 2024-12-31 13F AMEREN COM 023608102 187,564 -1,205 -0.64 16,719 1.27 0.1083
2024-11-14 2024-09-30 13F AMEREN COM 023608102 188,769 67,507 55.67 16,510 91.48 0.1208
2024-08-14 2024-06-30 13F AMEREN COM 023608102 121,262 121,262 8,623 0.0786
2023-08-14 2023-06-30 13F AMEREN COM 023608102 0 -13,393 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AMEREN COM 023608102 13,393 -5,242 -28.13 1 0.00 0.0214
2023-02-14 2022-12-31 13F AMEREN COM 023608102 18,635 7,689 70.24 2 -99.89 0.0377
2022-11-14 2022-09-30 13F AMEREN COM 023608102 10,946 10,946 882 0.0214
2022-02-14 2021-12-31 13F AMEREN COM 023608102 0 -11,582 -100.00 0 -100.00
2021-11-15 2021-09-30 13F AMEREN COM 023608102 11,582 0 0.00 938 1.19 0.0205
2021-08-16 2021-06-30 13F AMEREN COM 023608102 11,582 11,582 927 0.0205
2020-05-14 2020-03-31 13F AMEREN COM 023608102 0 -5,332 -100.00 0 -100.00
2020-02-14 2019-12-31 13F AMEREN COM 023608102 5,332 -190 -3.44 409 -7.47 0.0078
2019-11-14 2019-09-30 13F AMEREN COM 023608102 5,522 300 5.74 442 12.76 0.0086
2019-08-14 2019-06-30 13F AMEREN COM 023608102 5,222 1,035 24.72 392 27.27 0.0075
2019-05-14 2019-03-31 13F AMEREN COM 023608102 4,187 4,187 308 0.0073
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.