Ameren Corporation
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionLegal & General Group Plc
Latest Disclosed Ownership1,951,000 shares
Latest Disclosed Value $ 214,453,927
Legal & General Group Plc reports 1.50% decrease in ownership of AEE / Ameren Corporation

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 1,951,000 shares of Ameren Corporation (MX:AEE) valued at $214,453,927 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 1,980,793 shares of Ameren Corporation. This represents a change in shares of -1.50% 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)
2026-05-08 2026-03-31 13F AMEREN COM 023608102 1,951,000 -29,793 -1.50 214,454 8.42 0.0496
2026-02-09 2025-12-31 13F AMEREN COM 023608102 1,980,793 -139,714 -6.59 197,802 -10.63 0.0439
2025-11-13 2025-09-30 13F AMEREN COM 023608102 2,120,507 -139,911 -6.19 221,339 1.96 0.0497
2025-08-12 2025-06-30 13F AMEREN COM 023608102 2,260,418 94,107 4.34 217,091 -0.19 0.0539
2025-05-15 2025-03-31 13F AMEREN COM 023608102 2,166,311 144,126 7.13 217,498 20.66 0.0592
2025-02-13 2024-12-31 13F AMEREN COM 023608102 2,022,185 -48,651 -2.35 180,258 -0.47 0.0477
2025-02-28 2024-09-30 13F/A-2 AMEREN COM 023608102 2,070,836 -64,347 -3.01 181,115 19.29 0.0476
2024-11-14 2024-09-30 13F/A-1 AMEREN COM 023608102 2,419,792 -86,412 211,635 0.0441
2024-11-14 2024-09-30 13F AMEREN COM 023608102 2,419,792 -86,412 211,635 0.0223
2025-05-29 2024-06-30 13F/A-1 AMEREN COM 023608102 2,135,183 -105,834 -4.72 151,833 -8.39 0.0429
2024-08-14 2024-06-30 13F AMEREN COM 023608102 2,506,204 -76,219 178,216 0.0399
2025-05-29 2024-03-31 13F/A-2 AMEREN COM 023608102 2,241,017 -13,191 -0.59 165,746 1.64 0.0477
2024-07-01 2024-03-31 13F/A-1 AMEREN COM 023608102 2,582,423 -20,361 190,996 0.0446
2024-05-14 2024-03-31 13F AMEREN COM 023608102 2,582,423 -20,361 190,996 0.0230
2025-05-29 2023-12-31 13F/A-1 AMEREN COM 023608102 2,254,208 -134,343 -5.62 163,069 -8.76 0.0507
2024-02-15 2023-12-31 13F AMEREN COM 023608102 2,602,784 214,233 188,285 0.0483
2023-11-14 2023-09-30 13F AMEREN COM 023608102 2,388,551 -95,659 -3.85 178,735 -11.90 0.0624
2023-08-14 2023-06-30 13F AMEREN COM 023608102 2,484,210 -9,155 -0.37 202,885 -5.81 0.0660
2023-05-15 2023-03-31 13F AMEREN COM 023608102 2,493,365 -44,690 -1.76 215,402 -4.56 0.0770
2023-02-14 2022-12-31 13F AMEREN COM 023608102 2,538,055 -168,274 -6.22 225,684 3.53 0.0866
2022-11-14 2022-09-30 13F AMEREN COM 023608102 2,706,329 -286,032 -9.56 217,997 -19.38 0.0852
2022-08-22 2022-06-30 13F AMEREN COM 023608102 2,992,361 -111,146 -3.58 270,391 -7.08 0.0957
2022-05-16 2022-03-31 13F AMEREN COM 023608102 3,103,507 -3,371 -0.11 290,985 5.22 0.0885
2022-02-14 2021-12-31 13F AMEREN COM 023608102 3,106,878 -27,974 -0.89 276,543 8.91 0.0836
2021-11-15 2021-09-30 13F AMEREN COM 023608102 3,134,852 7,927 0.25 253,924 1.46 0.0825
2021-08-12 2021-06-30 13F AMEREN COM 023608102 3,126,925 50,722 1.65 250,277 0.00 0.0837
2021-05-17 2021-03-31 13F AMEREN COM 023608102 3,076,203 12,987 0.42 250,280 4.67 0.0932
2021-02-12 2020-12-31 13F AMEREN COM 023608102 3,063,216 -108,570 -3.42 239,113 -4.67 0.0936
2020-11-13 2020-09-30 13F AMEREN COM 023608102 3,171,786 31,445 1.00 250,826 13.53 0.1121
2020-08-14 2020-06-30 13F AMEREN COM 023608102 3,140,341 9,921 0.32 220,927 -3.16 0.1068
2020-05-14 2020-03-31 13F AMEREN COM 023608102 3,130,420 12,915 0.41 228,141 -4.71 0.1334
2020-02-13 2019-12-31 13F AMEREN COM 023608102 3,117,505 72,659 2.39 239,410 -1.78 0.1141
2019-11-13 2019-09-30 13F AMEREN COM 023608102 3,044,846 -8,032 -0.26 243,755 6.31 0.5109
2019-08-14 2019-06-30 13F AMEREN COM 023608102 3,052,878 182,955 6.37 229,297 8.64 0.1233
2019-05-15 2019-03-31 13F AMEREN COM 023608102 2,869,923 312,798 12.23 211,071 26.56 0.1205
2019-02-15 2018-12-31 13F AMEREN COM 023608102 2,557,125 226,741 9.73 166,780 13.23 0.1292
2018-11-20 2018-09-30 13F AMEREN COM 023608102 2,330,384 106,776 4.80 147,297 8.88 0.1054
2018-08-10 2018-06-30 13F AMEREN COM 023608102 2,223,608 60,210 2.78 135,285 10.42 0.1044
2018-05-17 2018-03-31 13F AMEREN COM 023608102 2,163,398 97,091 4.70 122,517 0.51 0.0935
2018-02-13 2017-12-31 13F AMEREN COM 023608102 2,066,307 8,341 0.41 121,893 2.40 0.0882
2017-11-09 2017-09-30 13F AMEREN COM 023608102 2,057,966 87,892 4.46 119,034 10.52 0.0895
2017-08-03 2017-06-30 13F AMEREN COM 023608102 1,970,074 42,246 2.19 107,706 2.34 0.0870
2017-05-12 2017-03-31 13F AMEREN COM 023608102 1,927,828 20,146 1.06 105,243 5.16 0.0893
2017-02-13 2016-12-31 13F AMEREN COM 023608102 1,907,682 -2,469 -0.13 100,078 6.53 0.0933
2016-10-12 2016-09-30 13F AMEREN COM 023608102 1,910,151 50,153 2.70 93,945 -5.72 0.0952
2016-08-16 2016-06-30 13F AMEREN COM 023608102 1,859,998 -50,338 -2.64 99,648 4.12 0.1050
2016-05-16 2016-03-31 13F AMEREN COM 023608102 1,910,336 -17,551 -0.91 95,701 14.81 0.1060
2016-02-16 2015-12-31 13F AMEREN COM 023608102 1,927,887 26,490 1.39 83,353 3.71 0.0942
2015-11-13 2015-09-30 13F AMEREN COM 023608102 1,901,397 1,531 0.08 80,368 12.27 0.0980
2015-07-31 2015-06-30 13F AMEREN COM 023608102 1,899,866 161,642 9.30 71,587 -2.42 0.0841
2015-05-14 2015-03-31 13F AMEREN COM 023608102 1,738,224 29,636 1.73 73,360 -6.94 0.0877
2015-02-20 2014-12-31 13F/A-1 AMEREN COM 023608102 1,708,588 -90,299 -5.02 78,833 14.33 0.0927
2015-02-17 2014-12-31 13F AMEREN COM 023608102 1,708,588 -90,299 78,833 0.0971
2014-11-14 2014-09-30 13F AMEREN COM 023608102 1,798,887 23,385 1.32 68,954 -5.00 0.0827
2014-08-13 2014-06-30 13F AMEREN COM 023608102 1,775,502 -54,129 -2.96 72,583 -3.71 0.0846
2014-05-14 2014-03-31 13F AMEREN COM 023608102 1,829,631 31,003 1.72 75,381 15.90 0.0915
2014-02-07 2013-12-31 13F AMEREN COM 023608102 1,798,628 126,084 7.54 65,038 11.61 0.0787
2013-11-12 2013-09-30 13F AMEREN COM 023608102 1,672,544 490,940 41.55 58,271 43.19 0.0768
2013-08-01 2013-06-30 13F AMEREN COM 023608102 1,181,604 1,181,604 40,694 0.0562
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.