Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionCIBC Private Wealth Group, LLC
Latest Disclosed Ownership565,303 shares
Latest Disclosed Value $ 56,451,158
CIBC Private Wealth Group, LLC reports 49.59% increase in ownership of AEE / Ameren Corporation

On February 12, 2026 - CIBC Private Wealth Group, LLC filed a 13F-HR form disclosing ownership of 565,303 shares of Ameren Corporation (US:AEE) valued at $56,451,158 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 24, 2025 disclosing 377,905 shares of Ameren Corporation. This represents a change in shares of 49.59% during the quarter. The current value of the position is $60,052,138 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)
2026-02-12 2025-12-31 13F AMEREN COM 023608102 565,303 187,398 49.59 56,451 43.11 0.0954
2025-11-24 2025-09-30 13F AMEREN COM 023608102 377,905 -55,419 -12.79 39,446 -5.22 0.0675
2025-08-12 2025-06-30 13F AMEREN COM 023608102 433,324 108,000 33.20 41,616 35.76 0.0743
2025-05-14 2025-03-31 13F AMEREN COM 023608102 325,324 -68,373 -17.37 30,655 -12.75 0.0647
2025-02-12 2024-12-31 13F AMEREN COM 023608102 393,697 178 0.05 35,134 2.08 0.0637
2024-11-13 2024-09-30 13F AMEREN COM 023608102 393,519 -60,770 -13.38 34,417 7.14 0.0617
2024-08-09 2024-06-30 13F AMEREN COM 023608102 454,289 171,083 60.41 32,123 54.86 0.0602
2024-05-10 2024-03-31 13F AMEREN COM 023608102 283,206 140,009 97.77 20,742 100.25 0.0406
2024-02-13 2023-12-31 13F AMEREN CORP COM COM 023608102 143,197 -117,489 -45.07 10,359 -46.90 0.0219
2023-11-13 2023-09-30 13F AMEREN CORP COM COM 023608102 260,686 -20,160 -7.18 19,507 -14.95 0.0462
2023-11-21 2023-06-30 13F/A-1 AMEREN CORP COM COM 023608102 280,846 76,764 37.61 22,937 30.10 0.0501
2023-08-10 2023-06-30 13F AMEREN CORP COM COM 023608102 280,846 76,764 22,937 0.0502
2023-11-21 2023-03-31 13F/A-1 AMEREN CORP COM COM 023608102 204,082 -50,370 -19.80 17,631 -20.77 0.0390
2023-05-12 2023-03-31 13F AMEREN CORP COM COM 023608102 204,082 -50,370 17,631 0.0383
2023-06-01 2022-12-31 13F/A-2 AMEREN CORP COM COM 023608102 254,452 -154 -0.06 22,252 8.49 0.0747
2023-02-14 2022-12-31 13F/A-1 AMEREN CORP COM COM 023608102 253,451 -1,155 22,537 0.0472
2023-02-13 2022-12-31 13F AMEREN CORP COM COM 023608102 253,451 -1,155 22,537 0.0000
2022-11-15 2022-09-30 13F AMEREN CORP COM COM 023608102 254,606 -49,976 -16.41 20,509 -25.48 0.0552
2022-08-03 2022-06-30 13F AMEREN COM 023608102 304,582 300,237 6,909.94 27,522 6,645.59 0.0715
2022-05-16 2022-03-31 13F AMEREN COM 023608102 4,345 1,085 33.28 408 40.69 0.0009
2022-04-04 2021-12-31 13F/A-1 AMEREN COM 023608102 3,260 500 18.12 290 29.46 0.0006
2022-02-08 2021-12-31 13F AMEREN COM 023608102 3,260 500 290 0.0006
2021-11-12 2021-09-30 13F AMEREN COM 023608102 2,760 2,760 224 0.0005
2021-08-16 2021-06-30 13F AMEREN COM 023608102 0 -2,482 -100.00 0 -100.00
2021-05-12 2021-03-31 13F AMEREN COM 023608102 2,482 -186,245 -98.68 202 -98.63 0.0005
2021-02-12 2020-12-31 13F AMEREN COM 023608102 188,727 25,814 15.85 14,732 14.35 0.0389
2020-11-03 2020-09-30 13F/A-1 AMEREN COM 023608102 162,913 -97,646 -37.48 12,883 -29.73 0.0395
2020-08-13 2020-06-30 13F AMEREN CORP COM Com 023608102 260,559 260,559 59.94 18,333 42.30 0.0891
2019-05-10 2019-03-31 13F AMEREN COM 023608102 0 -4,809 -100.00 0 -100.00
2019-02-05 2018-12-31 13F AMEREN COM 023608102 4,809 0 0.00 314 3.29 0.0014
2018-11-14 2018-09-30 13F AMEREN COM 023608102 4,809 0 0.00 304 3.75 0.0012
2018-08-02 2018-06-30 13F AMEREN COM 023608102 4,809 -247 -4.89 293 2.45 0.0012
2018-05-17 2018-03-31 13F AMEREN COM 023608102 5,056 1,268 33.47 286 28.25 0.0012
2018-02-12 2017-12-31 13F AMEREN COM 023608102 3,788 162 4.47 223 6.19 0.0009
2017-12-21 2017-09-30 13F/A-1 AMEREN COM 023608102 3,626 3,626 210 0.0010
2017-11-14 2017-09-30 13F AMEREN COM 023608102 3,626 210 0.0009
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.