Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership25,466 shares
Latest Disclosed Value $ 2,799,146
Northwestern Mutual Wealth Management Co reports 1.91% decrease in ownership of AEE / Ameren Corporation

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 25,466 shares of Ameren Corporation (US:AEE) valued at $2,799,223 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 25,962 shares of Ameren Corporation. This represents a change in shares of -1.91% during the quarter. The current value of the position is $2,782,670 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)
2026-05-07 2026-03-31 13F AMEREN COM 023608102 25,466 -496 -1.91 2,799 7.99 0.0017
2026-02-10 2025-12-31 13F/A-1 AMEREN COM 023608102 25,962 -1,417 -5.18 2,593 -9.28 0.0016
2026-02-05 2025-12-31 13F AMEREN COM 023608102 92,993 65,614 6,751 0.0043
2025-11-14 2025-09-30 13F AMEREN COM 023608102 27,379 2,967 12.15 2,858 21.89 0.0019
2025-08-13 2025-06-30 13F AMEREN COM 023608102 24,412 236 0.98 2,345 -3.42 0.0017
2025-05-14 2025-03-31 13F AMEREN COM 023608102 24,176 -1,916 -7.34 2,427 4.39 0.0020
2025-02-11 2024-12-31 13F AMEREN COM 023608102 26,092 525 2.05 2,326 3.98 0.0020
2024-11-12 2024-09-30 13F AMEREN COM 023608102 25,567 -1,115 -4.18 2,236 17.87 0.0020
2024-08-16 2024-06-30 13F AMEREN COM 023608102 26,682 -1,536 -5.44 1,897 -9.06 0.0019
2024-05-15 2024-03-31 13F AMEREN COM 023608102 28,218 4,156 17.27 2,087 19.89 0.0021
2024-02-13 2023-12-31 13F AMEREN COM 023608102 24,062 -2,745 -10.24 1,741 -13.22 0.0020
2023-11-14 2023-09-30 13F AMEREN COM 023608102 26,807 -295 -1.09 2,006 -9.40 0.0026
2023-08-14 2023-06-30 13F AMEREN COM 023608102 27,102 -334 -1.22 2,213 -6.62 0.0029
2023-05-15 2023-03-31 13F AMEREN COM 023608102 27,436 -1,397 -4.85 2,370 -7.53 0.0033
2023-02-21 2022-12-31 13F AMEREN COM 023608102 28,833 -1,508 -4.97 2,564 4.87 0.0039
2022-11-14 2022-09-30 13F AMEREN COM 023608102 30,341 -1,120 -3.56 2,444 -14.06 0.0043
2022-08-04 2022-06-30 13F AMEREN COM 023608102 31,461 21,801 225.68 2,844 213.91 0.0049
2022-05-09 2022-03-31 13F AMEREN COM 023608102 9,660 690 7.69 906 13.53 0.0015
2022-02-03 2021-12-31 13F AMEREN COM 023608102 8,970 244 2.80 798 12.87 0.0013
2021-11-15 2021-09-30 13F AMEREN COM 023608102 8,726 -646 -6.89 707 -5.86 0.0013
2021-08-13 2021-06-30 13F AMEREN COM 023608102 9,372 -283 -2.93 751 -4.33 0.0014
2021-05-14 2021-03-31 13F AMEREN COM 023608102 9,655 904 10.33 785 14.93 0.0017
2021-02-12 2020-12-31 13F AMEREN COM 023608102 8,751 451 5.43 683 4.12 0.0016
2020-11-13 2020-09-30 13F AMEREN COM 023608102 8,300 463 5.91 656 19.06 0.0018
2020-08-14 2020-06-30 13F AMEREN COM 023608102 7,837 244 3.21 551 -0.36 0.0017
2020-05-08 2020-03-31 13F AMEREN COM 023608102 7,593 -11,909 -61.07 553 -63.08 0.0021
2020-02-13 2019-12-31 13F AMEREN COM 023608102 19,502 -110 -0.56 1,498 -4.59 0.0051
2019-11-12 2019-09-30 13F AMEREN COM 023608102 19,612 -624 -3.08 1,570 3.29 0.0060
2019-08-12 2019-06-30 13F AMEREN COM 023608102 20,236 1,013 5.27 1,520 7.50 0.0061
2019-05-10 2019-03-31 13F AMEREN COM 023608102 19,223 2,223 13.08 1,414 27.50 0.0062
2019-02-12 2018-12-31 13F AMEREN COM 023608102 17,000 13,551 392.90 1,109 408.72 0.0056
2018-11-01 2018-09-30 13F AMEREN COM 023608102 3,449 640 22.78 218 27.49 0.0011
2018-08-10 2018-06-30 13F AMEREN COM 023608102 2,809 -498 -15.06 171 -8.56 0.0010
2018-05-14 2018-03-31 13F AMEREN COM 023608102 3,307 -2,119 -39.05 187 -41.56 0.0011
2018-01-31 2017-12-31 13F AMEREN COM 023608102 5,426 -660 -10.84 320 -9.09 0.0020
2017-11-07 2017-09-30 13F AMEREN COM 023608102 6,086 -464 -7.08 352 -1.68 0.0025
2017-08-10 2017-06-30 13F AMEREN COM 023608102 6,550 205 3.23 358 3.47 0.0029
2017-05-09 2017-03-31 13F AMEREN COM 023608102 6,345 -1,008 -13.71 346 -10.36 0.0031
2017-02-15 2016-12-31 13F AMEREN COM 023608102 7,353 -1,414 -16.13 386 -10.44 0.0042
2016-11-14 2016-09-30 13F AMEREN COM 023608102 8,767 -1,713 -16.35 431 -23.31 0.0066
2016-08-29 2016-06-30 13F AMEREN COM 023608102 10,480 3,939 60.22 562 71.34 0.0081
2016-05-16 2016-03-31 13F AMEREN COM 023608102 6,541 -1,103 -14.43 328 -0.61 0.0053
2016-02-16 2015-12-31 13F AMEREN COM 023608102 7,644 3,845 101.21 330 104.97 0.0066
2015-11-16 2015-09-30 13F AMEREN COM 023608102 3,799 1,518 66.55 161 87.21 0.0038
2015-09-30 2015-06-30 13F/A-1 AMEREN COM 023608102 2,281 -818 -26.40 86 -34.35 0.0022
2015-08-14 2015-06-30 13F AMEREN COM 023608102 3,099 131
2015-05-15 2015-03-31 13F AMEREN COM 023608102 3,099 1,433 86.01 131 70.13 0.0037
2015-02-13 2014-12-31 13F AMEREN COM 023608102 1,666 -6,501 -79.60 77 -75.32 0.0024
2014-11-14 2014-09-30 13F AMEREN COM 023608102 8,167 870 11.92 312 4.00 0.0109
2014-08-05 2014-06-30 13F AMEREN COM 023608102 7,297 4,988 216.02 300 215.79 0.0117
2014-05-15 2014-03-31 13F AMEREN COM 023608102 2,309 499 27.57 95 46.15 0.0040
2014-02-14 2013-12-31 13F AMEREN COM 023608102 1,810 -294 -13.97 65 -10.96 0.0030
2013-11-14 2013-09-30 13F AMEREN COM 023608102 2,104 294 16.24 73 17.74 0.0038
2013-08-21 2013-06-30 13F/A-1 AMEREN COM 023608102 1,810 1,810 62 0.0037
2013-08-14 2013-06-30 13F AMEREN COM 023608102 51,207 1,764 0.0194
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.