Ameren Corporation
DE ˙ DB ˙ US0236081024
90,78 € ↓ -0,42 (-0,46%)
2026-06-04
DEL PRIS
SecurityDE:AE4 / Ameren Corporation
InstitutionOak Thistle LLC
Latest Disclosed Ownership59,865 shares
Latest Disclosed Value $ 6,580,361
Oak Thistle LLC reports 12.48% increase in ownership of AE4 / Ameren Corporation

On April 10, 2026 - Oak Thistle LLC filed a 13F-HR form disclosing ownership of 59,865 shares of Ameren Corporation (DE:AE4) valued at $5,747,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 53,221 shares of Ameren Corporation. This represents a change in shares of 12.48% during the quarter. The current value of the position is $5,434,545 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)
2026-04-10 2026-03-31 13F AMEREN COM 023608102 59,865 6,644 12.48 6,580 23.82 0.6388
2026-01-21 2025-12-31 13F AMEREN COM 023608102 53,221 53,221 5,315 0.7382
2025-10-07 2025-09-30 13F AMEREN COM 023608102 0 -19,032 -100.00 0 -100.00
2025-08-08 2025-06-30 13F AMEREN COM 023608102 19,032 -4,852 -20.31 1,828 -23.78 0.2692
2025-05-06 2025-03-31 13F AMEREN COM 023608102 23,884 23,884 2,398 0.4828
2024-04-18 2024-03-31 13F AMEREN COM 023608102 0 -16,150 -100.00 0 -100.00
2024-01-22 2023-12-31 13F AMEREN COM 023608102 16,150 16,150 1,168 0.3357
2023-07-26 2023-06-30 13F AMEREN COM 023608102 0 -4,060 -100.00 0 -100.00
2023-04-27 2023-03-31 13F AMEREN COM 023608102 4,060 4,060 351 0.2070
2022-10-14 2022-09-30 13F AMEREN COM 023608102 0 -2,540 -100.00 0 -100.00
2022-08-01 2022-06-30 13F AMEREN COM 023608102 2,540 2,540 230 0.4443
2022-05-10 2022-03-31 13F AMEREN COM 023608102 0 -3,801 -100.00 0 -100.00
2022-01-25 2021-12-31 13F AMEREN COM 023608102 3,801 3,801 338 0.2621
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.