Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionCwm, Llc
Latest Disclosed Ownership27,660 shares
Latest Disclosed Value $ 3,040,343
Cwm, Llc reports 15.24% increase in ownership of AEE / Ameren Corporation

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 27,660 shares of Ameren Corporation (US:AEE) valued at $3,040,387 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 24,003 shares of Ameren Corporation. This represents a change in shares of 15.24% during the quarter. The current value of the position is $2,938,322 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)
2026-05-14 2026-03-31 13F AMEREN COM 023608102 27,660 3,657 15.24 3,040 151,900.00 0.0079
2026-01-26 2025-12-31 13F AMEREN COM 023608102 24,003 -326 -1.34 2 0.00 0.0065
2025-10-15 2025-09-30 13F AMEREN COM 023608102 24,329 11,661 92.05 3 100.00 0.0076
2025-07-25 2025-06-30 13F AMEREN COM 023608102 12,668 -1,096 -7.96 1 0.00 0.0043
2025-05-01 2025-03-31 13F AMEREN COM 023608102 13,764 56 0.41 1 0.00 0.0055
2025-02-04 2024-12-31 13F AMEREN COM 023608102 13,708 857 6.67 1 0.00 0.0051
2024-10-08 2024-09-30 13F AMEREN COM 023608102 12,851 1,319 11.44 1 0.0048
2024-07-10 2024-06-30 13F AMEREN COM 023608102 11,532 933 8.80 1 0.0039
2024-04-05 2024-03-31 13F AMEREN COM 023608102 10,599 -2,108 -16.59 1 0.0038
2024-02-01 2023-12-31 13F AMEREN COM 023608102 12,707 -1,864 -12.79 1 -100.00 0.0049
2023-10-11 2023-09-30 13F AMEREN COM 023608102 14,571 102 0.70 1 0.00 0.0067
2023-08-03 2023-06-30 13F AMEREN COM 023608102 14,469 647 4.68 1 0.00 0.0073
2023-05-01 2023-03-31 13F AMEREN COM 023608102 13,822 50 0.36 1 0.00 0.0081
2023-02-01 2022-12-31 13F AMEREN COM 023608102 13,772 2,404 21.15 1 -99.89 0.0090
2022-10-27 2022-09-30 13F AMEREN COM 023608102 11,368 4,051 55.36 916 38.58 0.0073
2022-07-28 2022-06-30 13F AMEREN COM 023608102 7,317 884 13.74 661 9.62 0.0051
2022-04-21 2022-03-31 13F AMEREN COM 023608102 6,433 -597 -8.49 603 -3.67 0.0043
2022-01-31 2021-12-31 13F AMEREN COM 023608102 7,030 -243,894 -97.20 626 -96.88 0.0044
2021-09-15 2021-06-30 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2021-07-29 2021-06-30 13F AMEREN COM 023608102 250,924 0 20,084 0.1601
2021-09-15 2021-03-31 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2021-04-27 2021-03-31 13F AMEREN COM 023608102 243,071 -7,853 19,776 0.1739
2021-09-15 2020-12-31 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2021-01-27 2020-12-31 13F AMEREN COM 023608102 260,901 9,977 20,366 0.1909
2021-09-15 2020-09-30 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2020-10-19 2020-09-30 13F AMEREN COM 023608102 254,869 3,945 20,155 0.2241
2021-09-15 2020-06-30 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2020-07-22 2020-06-30 13F AMEREN COM 023608102 3,742 -247,182 263 0.0031
2021-09-15 2020-03-31 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2020-04-28 2020-03-31 13F AMEREN COM 023608102 3,804 -247,120 277 0.0041
2021-09-14 2019-12-31 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2020-01-27 2019-12-31 13F AMEREN COM 023608102 3,954 -246,970 304 0.0039
2021-09-14 2019-09-30 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2019-10-22 2019-09-30 13F AMEREN COM 023608102 1,455 -249,469 117 0.0017
2021-09-14 2019-06-30 13F/A-1 AMEREN COM 023608102 250,924 0 0.00 20,084 0.00 0.1601
2019-07-31 2019-06-30 13F AMEREN COM 023608102 1,502 -249,422 113 0.0019
2021-09-02 2019-03-31 13F/A-1 AMEREN COM 023608102 250,924 248,902 12,309.69 20,084 15,115.15 0.1601
2019-04-22 2019-03-31 13F AMEREN COM 023608102 1,883 -139 138 0.0028
2019-01-25 2018-12-31 13F AMEREN COM 023608102 2,022 1,513 297.25 132 312.50 0.0033
2018-10-29 2018-09-30 13F AMEREN COM 023608102 509 292 134.56 32 146.15 0.0008
2018-07-31 2018-06-30 13F AMEREN COM 023608102 217 17 8.50 13 18.18 0.0004
2018-04-26 2018-03-31 13F AMEREN COM 023608102 200 0 0.00 11 -8.33 0.0004
2018-01-16 2017-12-31 13F AMEREN COM 023608102 200 -82 -29.08 12 -25.00 0.0005
2017-10-16 2017-09-30 13F AMEREN COM 023608102 282 82 41.00 16 45.45 0.0008
2017-07-17 2017-06-30 13F AMEREN COM 023608102 200 -91 -31.27 11 -31.25 0.0006
2017-04-17 2017-03-31 13F AMEREN COM 023608102 291 -1,424 -83.03 16 -82.22 0.0009
2017-01-19 2016-12-31 13F AMEREN COM 023608102 1,715 200 13.20 90 20.00 0.0055
2016-10-17 2016-09-30 13F AMEREN COM 023608102 1,515 0 0.00 75 -7.41 0.0052
2016-07-21 2016-06-30 13F AMEREN COM 023608102 1,515 0 0.00 81 6.58 0.0059
2016-04-18 2016-03-31 13F AMEREN COM 023608102 1,515 0 0.00 76 16.92 0.0067
2016-02-01 2015-12-31 13F AMEREN COM 023608102 1,515 0 0.00 65 1.56 0.0064
2015-10-30 2015-09-30 13F AMEREN COM 023608102 1,515 1,515 64 0.0064
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.