Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionRegions Financial Corp
Latest Disclosed Ownership7,225 shares
Latest Disclosed Value $ 794,172
Regions Financial Corp reports 0.10% increase in ownership of AEE / Ameren Corporation

On May 5, 2026 - Regions Financial Corp filed a 13F-HR form disclosing ownership of 7,225 shares of Ameren Corporation (US:AEE) valued at $794,172 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 7,218 shares of Ameren Corporation. This represents a change in shares of 0.10% during the quarter. The current value of the position is $773,003 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.

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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)
2026-05-05 2026-03-31 13F AMEREN COM 023608102 7,225 7 0.10 794 10.28 0.0052
2026-01-27 2025-12-31 13F AMEREN COM 023608102 7,218 15 0.21 721 -4.13 0.0046
2025-11-19 2025-09-30 13F/A-1 AMEREN COM 023608102 7,203 -122 -1.67 752 6.83 0.0049
2025-11-19 2025-09-30 13F AMEREN COM 023608102 7,203 -122 752 0.0043
2025-07-29 2025-06-30 13F AMEREN COM 023608102 7,325 -39 -0.53 703 -4.87 0.0048
2025-05-08 2025-03-31 13F AMEREN COM 023608102 7,364 -148 -1.97 739 10.46 0.0055
2025-02-14 2024-12-31 13F AMEREN COM 023608102 7,512 -1,785 -19.20 670 -17.71 0.0049
2024-11-14 2024-09-30 13F AMEREN COM 023608102 9,297 0 0.00 813 23.00 0.0059
2024-07-31 2024-06-30 13F AMEREN COM 023608102 9,297 -566 -5.74 661 -9.33 0.0050
2024-04-23 2024-03-31 13F AMEREN COM 023608102 9,863 -390 -3.80 729 -1.62 0.0055
2024-02-06 2023-12-31 13F AMEREN COM 023608102 10,253 -2,207 -17.71 742 -20.49 0.0061
2023-11-01 2023-09-30 13F AMEREN COM 023608102 12,460 11 0.09 932 -8.27 0.0084
2023-08-09 2023-06-30 13F AMEREN COM 023608102 12,449 -3,158 -20.23 1,017 101,500.00 0.0088
2023-05-12 2023-03-31 13F AMEREN COM 023608102 15,607 201 1.30 1 0.00 0.0121
2023-02-06 2022-12-31 13F AMEREN COM 023608102 15,406 -2,475 -13.84 1 -99.93 0.0126
2022-11-03 2022-09-30 13F AMEREN COM 023608102 17,881 -135 -0.75 1,441 -11.49 0.0145
2022-07-25 2022-06-30 13F AMEREN COM 023608102 18,016 -667 -3.57 1,628 -7.08 0.0155
2022-04-25 2022-03-31 13F AMEREN COM 023608102 18,683 -28 -0.15 1,752 5.16 0.0141
2022-01-31 2021-12-31 13F AMEREN COM 023608102 18,711 109 0.59 1,666 10.62 0.0130
2021-11-04 2021-09-30 13F AMEREN COM 023608102 18,602 2,051 12.39 1,506 13.66 0.0130
2021-07-27 2021-06-30 13F AMEREN COM 023608102 16,551 2,727 19.73 1,325 17.78 0.0115
2021-06-02 2021-03-31 13F AMEREN COM 023608102 13,824 -66 -0.48 1,125 3.69 0.0102
2021-02-05 2020-12-31 13F AMEREN COM 023608102 13,890 -498 -3.46 1,085 -4.66 0.0105
2020-10-15 2020-09-30 13F AMEREN COM 023608102 14,388 -181 -1.24 1,138 11.02 0.0124
2020-07-27 2020-06-30 13F AMEREN COM 023608102 14,569 -10,132 -41.02 1,025 -43.02 0.0119
2020-04-29 2020-03-31 13F AMEREN COM 023608102 24,701 -2,059 -7.69 1,799 -12.50 0.0239
2020-02-03 2019-12-31 13F AMEREN COM 023608102 26,760 11,076 70.62 2,056 63.82 0.0216
2019-10-24 2019-09-30 13F AMEREN COM 023608102 15,684 1,026 7.00 1,255 13.99 0.0139
2019-07-19 2019-06-30 13F AMEREN COM 023608102 14,658 -1,119 -7.09 1,101 -5.09 0.0124
2019-04-19 2019-03-31 13F AMEREN COM 023608102 15,777 24 0.15 1,160 12.84 0.0134
2019-01-28 2018-12-31 13F AMEREN COM 023608102 15,753 1,573 11.09 1,028 14.73 0.0128
2018-10-22 2018-09-30 13F AMEREN COM 023608102 14,180 -60 -0.42 896 3.34 0.0097
2018-07-26 2018-06-30 13F Ameren COM 023608102 14,240 82 0.58 867 8.24 0.0098
2018-04-18 2018-03-31 13F Ameren COM 023608102 14,158 -520 -3.54 801 -7.51 0.0090
2018-01-18 2017-12-31 13F Ameren COM 023608102 14,678 85 0.58 866 2.61 0.0094
2017-10-23 2017-09-30 13F AMEREN COMMON STOCK 023608102 14,593 -63 -0.43 844 5.37 0.0096
2017-07-31 2017-06-30 13F AMEREN COMMON STOCK 023608102 14,656 -94 -0.64 801 -0.50 0.0094
2017-05-02 2017-03-31 13F AMEREN COMMON STOCK 023608102 14,750 3,197 27.67 805 32.84 0.0095
2017-02-03 2016-12-31 13F AMEREN COMMON STOCK 023608102 11,553 -380 -3.18 606 3.24 0.0074
2016-10-28 2016-09-30 13F AMEREN COMMON STOCK 023608102 11,933 1,621 15.72 587 6.34 0.0076
2016-07-26 2016-06-30 13F AMEREN COMMON STOCK 023608102 10,312 -711 -6.45 552 0.00 0.0072
2016-05-02 2016-03-31 13F AMEREN COMMON STOCK 023608102 11,023 -560 -4.83 552 10.40 0.0073
2016-01-29 2015-12-31 13F AMEREN COMMON STOCK 023608102 11,583 -2,116 -15.45 500 -13.64 0.0067
2015-10-20 2015-09-30 13F AMEREN COMMON STOCK 023608102 13,699 439 3.31 579 16.03 0.0083
2015-07-14 2015-06-30 13F AMEREN COMMON STOCK 023608102 13,260 257 1.98 499 -9.11 0.0066
2015-04-23 2015-03-31 13F AMEREN COMMON STOCK 023608102 13,003 -174 -1.32 549 -9.56 0.0071
2015-01-21 2014-12-31 13F AMEREN COMMON STOCK 023608102 13,177 -16,130 -55.04 607 -45.95 0.0079
2014-10-27 2014-09-30 13F AMEREN COMMON STOCK 023608102 29,307 -4,620 -13.62 1,123 -19.03 0.0140
2014-07-23 2014-06-30 13F AMEREN COMMON STOCK 023608102 33,927 3,529 11.61 1,387 10.78 0.0170
2014-04-17 2014-03-31 13F AMEREN COMMON STOCK 023608102 30,398 -2,187 -6.71 1,252 6.28 0.0159
2014-01-27 2013-12-31 13F AMEREN COMMON STOCK 023608102 32,585 55 0.17 1,178 3.97 0.0146
2013-10-18 2013-09-30 13F AMEREN COMMON STOCK 023608102 32,530 -5,267 -13.93 1,133 -12.98 0.0150
2013-08-02 2013-06-30 13F AMEREN COM 023608102 37,797 37,797 1,302 0.0178
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.