Ameren Corporation
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionFirst Dallas Securities Inc.
Latest Disclosed Ownership5,216 shares
Latest Disclosed Value $ 573,342
First Dallas Securities Inc. reports 0.02% increase in ownership of AEE / Ameren Corporation

On April 27, 2026 - First Dallas Securities Inc. filed a 13F-HR form disclosing ownership of 5,216 shares of Ameren Corporation (MX:AEE) valued at $573,342 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 5,215 shares of Ameren Corporation. This represents a change in shares of 0.02% 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)
2026-04-27 2026-03-31 13F Ameren COM 023608102 5,216 1 0.02 573 10.19 0.2121
2026-02-11 2025-12-31 13F Ameren COM 023608102 5,215 0 0.00 521 -4.41 0.1938
2026-02-11 2025-12-31 13F Ameren COM 023608102 5,215 521
2025-11-05 2025-09-30 13F Ameren COM 023608102 5,215 -11 -0.21 544 8.58 0.2039
2025-08-07 2025-06-30 13F Ameren COM 023608102 5,226 -499 -8.72 502 -12.87 0.1984
2025-05-16 2025-03-31 13F AMEREN COM 023608102 5,725 0 0.00 575 12.75 0.2403
2025-01-24 2024-12-31 13F AMEREN COM 023608102 5,725 0 0.00 510 2.00 0.2079
2024-11-18 2024-09-30 13F AMEREN COM 023608102 5,725 -563 -8.95 501 11.86 0.2093
2024-08-02 2024-06-30 13F AMEREN COM 023608102 6,288 1,500 31.33 447 0.1963
2024-04-16 2024-03-31 13F AMEREN COM 023608102 4,788 -450 -8.59 0 0.1628
2024-02-13 2023-12-31 13F AMEREN COM 023608102 5,238 5,238 0 0.1953
2023-11-14 2023-09-30 13F AMEREN COM 023608102 0 -5,738 -100.00 0 0.0000
2023-08-07 2023-06-30 13F AMEREN COM 023608102 5,738 0 0.00 0 0.2616
2023-05-15 2023-03-31 13F AMEREN COM 023608102 5,738 -500 -8.02 0 0.2926
2023-02-03 2022-12-31 13F AMEREN COM 023608102 6,238 0 0.00 1 -100.00 0.3345
2022-10-21 2022-09-30 13F AMEREN COM 023608102 6,238 0 0.00 502 -10.83 0.3449
2022-07-28 2022-06-30 13F AMEREN COM 023608102 6,238 -500 -7.42 563 -10.92 0.3794
2022-05-12 2022-03-31 13F AMEREN COM 023608102 6,738 -100 -1.46 632 3.78 0.3570
2022-02-07 2021-12-31 13F AMEREN COM 023608102 6,838 -100 -1.44 609 8.36 0.3994
2021-10-06 2021-09-30 13F AMEREN COM 023608102 6,938 0 0.00 562 1.26 0.3879
2021-07-06 2021-06-30 13F AMEREN COM 023608102 6,938 -50 -0.72 555 -2.46 0.3637
2021-05-26 2021-03-31 13F AMEREN COM 023608102 6,988 0 0.00 569 4.40 0.4840
2021-02-01 2020-12-31 13F AMEREN COM 023608102 6,988 -583 -7.70 545 -9.02 0.4921
2020-10-15 2020-09-30 13F AMEREN COM 023608102 7,571 1,150 17.91 599 27.99 0.6734
2020-05-04 2020-03-31 13F AMEREN COM 023608102 6,421 0 0.00 468 -5.07 0.6524
2020-02-04 2019-12-31 13F AMEREN COM 023608102 6,421 -3,000 -31.84 493 -34.62 0.4208
2019-11-14 2019-09-30 13F AMEREN COM 023608102 9,421 -291 -3.00 754 3.43 0.6685
2019-08-22 2019-06-30 13F AMEREN COM 023608102 9,712 1 0.01 729 2.10 0.6377
2019-05-17 2019-03-31 13F Ameren COM 023608102 9,711 -100 -1.02 714 11.56 0.5135
2019-02-11 2018-12-31 13F Ameren COM 023608102 9,811 -646 -6.18 640 -3.18 0.5334
2018-10-31 2018-09-30 13F Ameren COM 023608102 10,457 3 0.03 661 3.93 0.4130
2018-07-31 2018-06-30 13F Ameren COM 023608102 10,454 -421 -3.87 636 3.25 0.4066
2018-05-04 2018-03-31 13F Ameren COM 023608102 10,875 -97 -0.88 616 -4.79 0.4023
2018-02-07 2017-12-31 13F AMEREN COM 023608102 10,972 -196 -1.76 647 0.15 0.4114
2017-11-07 2017-09-30 13F Ameren COM 023608102 11,168 3 0.03 646 5.90 0.4477
2017-08-14 2017-06-30 13F Ameren COM 023608102 11,165 -184 -1.62 610 -1.61 0.4456
2017-05-05 2017-03-31 13F Ameren COM 023608102 11,349 3 0.03 620 4.20 0.4323
2017-01-11 2016-12-31 13F AMEREN COM 023608102 11,346 -1,506 -11.72 595 -5.85 0.4071
2016-11-15 2016-09-30 13F AMEREN COM 023608102 12,852 -296 -2.25 632 -10.35 0.4689
2016-07-26 2016-06-30 13F AMEREN COM 023608102 13,148 -196 -1.47 705 5.38 0.5443
2016-05-03 2016-03-31 13F AMEREN COM 023608102 13,344 -546 -3.93 669 11.50 0.5412
2016-01-27 2015-12-31 13F AMEREN COM 023608102 13,890 5 0.04 600 2.39 0.4914
2015-11-12 2015-09-30 13F AMEREN COM 023608102 13,885 -482 -3.35 586 8.32 0.4817
2015-07-27 2015-06-30 13F Ameren COM 023608102 14,367 313 2.23 541 -8.77 0.3902
2015-05-05 2015-03-31 13F/A-1 Ameren COM 023608102 14,054 -1,107 -7.30 593 -15.16 0.4135
2015-05-05 2015-03-31 13F Ameren COM 023608102 14,054 593
2015-02-17 2014-12-31 13F Ameren COM 023608102 15,161 5 0.03 699 20.31 0.4549
2014-11-12 2014-09-30 13F Ameren COM 023608102 15,156 -60 -0.39 581 -6.59 0.3451
2014-07-11 2014-06-30 13F AMEREN CORP COM COM 023608102 15,216 -2,315 -13.21 622 -13.85 0.3738
2014-04-15 2014-03-31 13F AMEREN CORP COM COM 023608102 17,531 -994 -5.37 722 7.76 0.4821
2014-01-29 2013-12-31 13F AMEREN CORP COM COM 023608102 18,525 -748 -3.88 670 -0.15 0.4490
2013-11-13 2013-09-30 13F/A-1 AMEREN CORP COM COM 023608102 19,273 -1,318 -6.40 671 -9.93 0.5123
2013-11-12 2013-09-30 13F AMEREN CORP COM COM 023608102 19,273 671
2013-08-15 2013-06-30 13F AMEREN CORP COM COM 023608102 20,591 20,591 745 0.5738
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.