Ameren Corporation
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionDuncker Streett & Co Inc
Latest Disclosed Ownership2,984 shares
Latest Disclosed Value $ 327,967
Duncker Streett & Co Inc ownership in AEE / Ameren Corporation

On April 29, 2026 - Duncker Streett & Co Inc filed a 13F-HR form disclosing ownership of 2,984 shares of Ameren Corporation (MX:AEE) valued at $327,967 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 2,984 shares of Ameren Corporation. This represents a change in shares of 0.00% 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)
2026-04-29 2026-03-31 13F AMEREN COM 023608102 2,984 0 0.00 328 10.10 0.0623
2026-01-27 2025-12-31 13F AMEREN COM 023608102 2,984 0 0.00 298 -4.50 0.0530
2025-10-23 2025-09-30 13F AMEREN COM 023608102 2,984 0 0.00 311 8.74 0.0543
2025-07-28 2025-06-30 13F AMEREN COM 023608102 2,984 0 0.00 287 -4.35 0.0523
2025-04-22 2025-03-31 13F AMEREN COM 023608102 2,984 2 0.07 300 12.83 0.0594
2025-02-05 2024-12-31 13F AMEREN COM 023608102 2,982 272 10.04 266 12.29 0.0493
2024-11-12 2024-09-30 13F AMEREN COM 023608102 2,710 0 0.00 237 22.92 0.0432
2024-07-31 2024-06-30 13F AMEREN COM 023608102 2,710 0 0.00 193 -4.00 0.0370
2024-04-23 2024-03-31 13F AMEREN COM 023608102 2,710 0 0.00 200 2.04 0.0396
2024-01-30 2023-12-31 13F AMEREN COM 023608102 2,710 0 0.00 196 -2.97 0.0414
2023-10-26 2023-09-30 13F AMEREN COM 023608102 2,710 0 0.00 203 -8.60 0.0472
2023-07-20 2023-06-30 13F AMEREN COM 023608102 2,710 -75 -2.69 221 -7.92 0.0495
2023-04-24 2023-03-31 13F AMEREN COM 023608102 2,785 0 0.00 241 -2.83 0.0573
2023-01-25 2022-12-31 13F AMEREN COM 023608102 2,785 0 0.00 248 10.27 0.0598
2022-11-04 2022-09-30 13F AMEREN COM 023608102 2,785 0 0.00 224 -11.11 0.0581
2022-08-04 2022-06-30 13F AMEREN COM 023608102 2,785 -353 -11.25 252 -14.29 0.0604
2022-05-09 2022-03-31 13F AMEREN COM 023608102 3,138 0 0.00 294 5.38 0.0585
2022-02-08 2021-12-31 13F AMEREN COM 023608102 3,138 2 0.06 279 9.84 0.0480
2021-11-03 2021-09-30 13F AMEREN COM 023608102 3,136 2 0.06 254 1.20 0.0481
2021-07-27 2021-06-30 13F AMEREN COM 023608102 3,134 2 0.06 251 -1.57 0.0463
2021-04-28 2021-03-31 13F AMEREN COM 023608102 3,132 -38 -1.20 255 3.24 0.0486
2021-02-02 2020-12-31 13F AMEREN COM 023608102 3,170 -465 -12.79 247 -13.94 0.0478
2020-10-28 2020-09-30 13F AMEREN COM 023608102 3,635 -244 -6.29 287 5.13 0.0627
2020-07-22 2020-06-30 13F AMEREN COM 023608102 3,879 -995 -20.41 273 -23.10 0.0650
2020-04-27 2020-03-31 13F AMEREN COM 023608102 4,874 -583 -10.68 355 -15.27 0.0948
2020-01-27 2019-12-31 13F AMEREN COM 023608102 5,457 4 0.07 419 -3.90 0.0879
2019-10-31 2019-09-30 13F AMEREN COM 023608102 5,453 5 0.09 436 6.60 0.1014
2019-07-24 2019-06-30 13F AMEREN COM 023608102 5,448 6 0.11 409 2.00 0.0918
2019-04-29 2019-03-31 13F AMEREN COM 023608102 5,442 5 0.09 401 13.28 0.0924
2019-01-24 2018-12-31 13F AMEREN COM 023608102 5,437 6 0.11 354 3.21 0.0948
2018-10-22 2018-09-30 13F AMEREN COM 023608102 5,431 6 0.11 343 3.94 0.0779
2018-07-23 2018-06-30 13F AMEREN COM 023608102 5,425 -183 -3.26 330 3.77 0.0818
2018-04-26 2018-03-31 13F AMEREN COM 023608102 5,608 -1,217 -17.83 318 -21.09 0.0805
2018-01-23 2017-12-31 13F AMEREN COM 023608102 6,825 -2,118 -23.68 403 -22.05 0.1036
2017-10-25 2017-09-30 13F AMEREN COM 023608102 8,943 7 0.08 517 5.73 0.1565
2017-07-21 2017-06-30 13F AMEREN COM 023608102 8,936 -93 -1.03 489 -0.81 0.1525
2017-04-25 2017-03-31 13F AMEREN COM 023608102 9,029 468 5.47 493 9.80 0.1545
2017-01-26 2016-12-31 13F AMEREN COM 023608102 8,561 -497 -5.49 449 0.90 0.1493
2016-10-20 2016-09-30 13F AMEREN COM 023608102 9,058 0 0.00 445 -8.44 0.1542
2016-07-20 2016-06-30 13F AMEREN COM 023608102 9,058 0 0.00 486 7.05 0.1728
2016-04-25 2016-03-31 13F AMEREN COM 023608102 9,058 1,343 17.41 454 36.34 0.1681
2016-01-20 2015-12-31 13F AMEREN COM 023608102 7,715 850 12.38 333 14.83 0.1248
2015-10-27 2015-09-30 13F AMEREN COM 023608102 6,865 -500 -6.79 290 4.32 0.1128
2015-07-20 2015-06-30 13F AMEREN COM 023608102 7,365 0 0.00 278 -10.61 0.0969
2015-04-28 2015-03-31 13F AMEREN COM 023608102 7,365 0 0.00 311 -8.53 0.1018
2015-01-22 2014-12-31 13F AMEREN COM 023608102 7,365 -942 -11.34 340 6.58 0.1115
2014-10-23 2014-09-30 13F AMEREN COM 023608102 8,307 -500 -5.68 319 -11.39 0.1087
2014-07-23 2014-06-30 13F AMEREN COM 023608102 8,807 -450 -4.86 360 -5.51 0.1165
2014-04-23 2014-03-31 13F AMEREN COM 023608102 9,257 -666 -6.71 381 6.13 0.1348
2014-01-22 2013-12-31 13F AMEREN COM 023608102 9,923 1,397 16.39 359 20.88 0.1292
2013-10-23 2013-09-30 13F AMEREN COM 023608102 8,526 -350 -3.94 297 -2.94 0.1203
2013-07-26 2013-06-30 13F AMEREN COM 023608102 8,876 8,876 306 0.1172
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.