Ameren Corporation
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionGabelli Funds Llc
Latest Disclosed Ownership482,200 shares
Latest Disclosed Value $ 53,003,424
Gabelli Funds Llc reports 0.11% decrease in ownership of AEE / Ameren Corporation

On May 14, 2026 - Gabelli Funds Llc filed a 13F-HR form disclosing ownership of 482,200 shares of Ameren Corporation (MX:AEE) valued at $53,003,424 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 482,750 shares of Ameren Corporation. This represents a change in shares of -0.11% 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.

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)
2026-05-14 2026-03-31 13F AMEREN EQUITY 023608102 482,200 -550 -0.11 53,003 9.95 0.3580
2026-02-05 2025-12-31 13F AMEREN EQUITY 023608102 482,750 -400 -0.08 48,207 -4.41 0.3264
2025-11-12 2025-09-30 13F AMEREN EQUITY 023608102 483,150 -4,900 -1.00 50,431 7.59 0.3414
2025-08-13 2025-06-30 13F AMEREN EQUITY 023608102 488,050 -6,800 -1.37 46,872 -5.66 0.3328
2025-05-14 2025-03-31 13F AMEREN EQUITY 023608102 494,850 -10,900 -2.16 49,683 10.20 0.3786
2025-02-13 2024-12-31 13F AMEREN EQUITY 023608102 505,750 -4,000 -0.78 45,083 1.12 0.3386
2024-11-13 2024-09-30 13F AMEREN EQUITY 023608102 509,750 -2,000 -0.39 44,583 22.51 0.3213
2024-08-13 2024-06-30 13F AMEREN EQUITY 023608102 511,750 -12,100 -2.31 36,391 -6.07 0.2764
2024-05-14 2024-03-31 13F AMEREN EQUITY 023608102 523,850 -14,100 -2.62 38,744 -0.44 0.2854
2024-02-13 2023-12-31 13F AMEREN EQUITY 023608102 537,950 -15,200 -2.75 38,915 -5.98 0.2997
2023-11-08 2023-09-30 13F AMEREN EQUITY 023608102 553,150 -8,000 -1.43 41,392 -9.68 0.3359
2023-08-10 2023-06-30 13F AMEREN EQUITY 023608102 561,150 -500 -0.09 45,829 -5.55 0.3473
2023-05-12 2023-03-31 13F AMEREN EQUITY 023608102 561,650 0 0.00 48,521 -2.85 0.3677
2023-02-13 2022-12-31 13F AMEREN EQUITY 023608102 561,650 0 0.00 49,942 10.39 0.3881
2022-11-14 2022-09-30 13F/A-1 AMEREN CORP COM COM 023608102 561,650 -2,000 -0.35 45,241 -11.17 0.3730
2022-11-10 2022-09-30 13F AMEREN CORP COM COM 023608102 561,650 -2,000 45,241 0.3730
2022-08-12 2022-06-30 13F AMEREN CORP COM COM 023608102 563,650 -1,000 -0.18 50,931 -3.80 0.3910
2022-05-18 2022-03-31 13F/A-1 AMEREN CORP COM COM 023608102 564,650 -3,000 -0.53 52,942 4.78 0.3478
2022-05-13 2022-03-31 13F AMEREN CORP COM COM 023608102 564,650 -3,000 52,942 0.3574
2022-02-11 2021-12-31 13F AMEREN CORP COM COM 023608102 567,650 -1,000 -0.18 50,527 9.70 0.3189
2021-11-12 2021-09-30 13F AMEREN CORP COM COM 023608102 568,650 0 0.00 46,061 1.20 0.3051
2021-08-13 2021-06-30 13F AMEREN CORP COM COM 023608102 568,650 -5,000 -0.87 45,515 -2.48 0.2898
2021-05-14 2021-03-31 13F AMEREN CORP COM COM 023608102 573,650 -1,000 -0.17 46,672 4.05 0.3128
2021-02-05 2020-12-31 13F AMEREN CORP COM COM 023608102 574,650 -10,000 -1.71 44,857 -2.98 0.3195
2020-11-06 2020-09-30 13F AMEREN CORP COM COM 023608102 584,650 0 0.00 46,234 12.39 0.3602
2020-08-13 2020-06-30 13F AMEREN CORP COM COM 023608102 584,650 3,500 0.60 41,136 -2.81 0.3352
2020-05-14 2020-03-31 13F AMEREN CORP COM COM 023608102 581,150 -3,850 -0.66 42,325 -5.79 0.3771
2020-02-14 2019-12-31 13F AMEREN CORP COM COM 023608102 585,000 -2,000 -0.34 44,928 -4.39 0.2906
2019-11-01 2019-09-30 13F AMEREN CORP COM COM 023608102 587,000 0 0.00 46,989 6.58 0.3104
2019-08-02 2019-06-30 13F AMEREN CORP COM COM 023608102 587,000 0 0.00 44,090 2.12 0.2831
2019-05-02 2019-03-31 13F AMEREN CORP COM COM 023608102 587,000 0 0.00 43,174 12.76 0.2715
2019-01-30 2018-12-31 13F AMEREN CORP COM COM 023608102 587,000 0 0.00 38,290 3.18 0.2625
2018-11-02 2018-09-30 13F AMEREN CORP COM COM 023608102 587,000 0 0.00 37,110 3.89 0.2129
2018-08-10 2018-06-30 13F AMEREN CORP COM COM 023608102 587,000 -1,000 -0.17 35,719 7.27 0.2116
2018-05-09 2018-03-31 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 33,298 -4.00 0.1986
2018-02-02 2017-12-31 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 34,686 1.99 0.1998
2017-11-01 2017-09-30 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 34,010 5.80 0.1948
2017-08-03 2017-06-30 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 32,146 0.15 0.1910
2017-05-04 2017-03-31 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 32,099 4.06 0.1892
2017-02-10 2016-12-31 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 30,846 6.67 0.1825
2016-11-10 2016-09-30 13F AMEREN CORP COM COM 023608102 588,000 0 0.00 28,918 -8.21 0.1716
2016-08-04 2016-06-30 13F AMEREN CORP COM COM 023608102 588,000 -6,000 -1.01 31,505 5.87 0.1858
2016-05-05 2016-03-31 13F AMEREN CORP COM COM 023608102 594,000 -4,000 -0.67 29,759 15.11 0.1794
2016-02-05 2015-12-31 13F AMEREN CORP COM COM 023608102 598,000 -6,000 -0.99 25,852 1.26 0.1565
2015-10-23 2015-09-30 13F AMEREN CORP COM COM 023608102 604,000 -9,000 -1.47 25,531 10.53 0.1517
2015-08-05 2015-06-30 13F AMEREN CORP COM COM 023608102 613,000 0 0.00 23,098 -10.71 0.1209
2015-05-01 2015-03-31 13F AMEREN CORP COM COM 023608102 613,000 -135,000 -18.05 25,869 -25.03 0.1313
2015-02-05 2014-12-31 13F AMEREN CORP COM COM 023608102 748,000 2,000 0.27 34,505 20.67 0.1678
2014-10-30 2014-09-30 13F AMEREN CORP COM COM 023608102 746,000 0 0.00 28,594 -6.24 0.1451
2014-08-06 2014-06-30 13F AMEREN CORP COM COM 023608102 746,000 2,000 0.27 30,496 -0.51 0.1507
2014-05-16 2014-03-31 13F/A-1 AMEREN CORP COM COM 023608102 744,000 0 0.00 30,653 13.94 0.1591
2014-05-02 2014-03-31 13F AMEREN CORP COM COM 023608102 744,000 30,653
2014-02-07 2013-12-31 13F AMEREN CORP COM COM 023608102 744,000 -4,000 -0.53 26,903 3.23 0.1432
2013-11-07 2013-09-30 13F AMEREN CORP COM COM 023608102 748,000 0 0.00 26,060 1.16 0.1484
2013-08-02 2013-06-30 13F/A-1 AMEREN CORP COM COM 023608102 748,000 748,000 25,761 0.1563
2013-08-01 2013-06-30 13F AMEREN CORP COM COM 023608102 748,000 25,761 0.1563
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.