Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionSignaturefd, Llc
Latest Disclosed Ownership7,006 shares
Latest Disclosed Value $ 770,142
Signaturefd, Llc reports 19.52% increase in ownership of AEE / Ameren Corporation

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 7,006 shares of Ameren Corporation (US:AEE) valued at $770,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 5,862 shares of Ameren Corporation. This represents a change in shares of 19.52% during the quarter. The current value of the position is $765,546 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)
2026-04-07 2026-03-31 13F AMEREN COM 023608102 7,006 1,144 19.52 770 31.62 0.0118
2026-01-20 2025-12-31 13F AMEREN COM 023608102 5,862 -428 -6.80 585 -10.82 0.0089
2025-10-21 2025-09-30 13F AMEREN COM 023608102 6,290 -39 -0.62 657 8.07 0.0104
2025-07-16 2025-06-30 13F AMEREN COM 023608102 6,329 73 1.17 608 -3.34 0.0104
2025-05-02 2025-03-31 13F AMEREN COM 023608102 6,256 -20 -0.32 628 12.34 0.0119
2025-02-10 2024-12-31 13F AMEREN COM 023608102 6,276 125 2.03 559 4.10 0.0106
2024-10-21 2024-09-30 13F AMEREN COM 023608102 6,151 -216 -3.39 538 18.81 0.0102
2024-07-29 2024-06-30 13F AMEREN COM 023608102 6,367 -787 -11.00 453 -14.56 0.0092
2024-05-03 2024-03-31 13F AMEREN COM 023608102 7,154 2,046 40.05 529 43.36 0.0112
2024-02-01 2023-12-31 13F AMEREN COM 023608102 5,108 -1,246 -19.61 370 -22.32 0.0085
2023-11-03 2023-09-30 13F AMEREN COM 023608102 6,354 -439 -6.46 476 -14.26 0.0124
2023-08-01 2023-06-30 13F AMEREN COM 023608102 6,793 -617 -8.33 555 -13.44 0.0142
2023-04-28 2023-03-31 13F AMEREN COM 023608102 7,410 -83 -1.11 640 -3.90 0.0175
2023-01-30 2022-12-31 13F AMEREN COM 023608102 7,493 947 14.47 666 26.38 0.0195
2022-11-08 2022-09-30 13F AMEREN COM 023608102 6,546 21 0.32 527 -10.68 0.0180
2022-08-10 2022-06-30 13F AMEREN COM 023608102 6,525 1,571 31.71 590 26.88 0.0201
2022-05-02 2022-03-31 13F AMEREN COM 023608102 4,954 154 3.21 465 8.90 0.0140
2022-01-25 2021-12-31 13F AMEREN COM 023608102 4,800 391 8.87 427 19.61 0.0131
2021-10-28 2021-09-30 13F AMEREN COM 023608102 4,409 135 3.16 357 4.39 0.0123
2021-07-26 2021-06-30 13F AMEREN COM 023608102 4,274 -534 -11.11 342 -12.53 0.0136
2021-04-30 2021-03-31 13F AMEREN COM 023608102 4,808 2,254 88.25 391 96.48 0.0173
2021-02-11 2020-12-31 13F AMEREN COM 023608102 2,554 -82 -3.11 199 -4.33 0.0094
2020-11-03 2020-09-30 13F AMEREN COM 023608102 2,636 273 11.55 208 25.30 0.0111
2020-07-30 2020-06-30 13F AMEREN COM 023608102 2,363 -766 -24.48 166 -27.19 0.0100
2020-04-23 2020-03-31 13F AMEREN COM 023608102 3,129 26 0.84 228 -4.20 0.0197
2020-02-05 2019-12-31 13F AMEREN COM 023608102 3,103 12 0.39 238 -3.64 0.0176
2019-10-16 2019-09-30 13F AMEREN COM 023608102 3,091 57 1.88 247 8.33 0.0203
2019-07-31 2019-06-30 13F AMEREN COM 023608102 3,034 464 18.05 228 20.63 0.0197
2019-05-09 2019-03-31 13F AMEREN COM 023608102 2,570 82 3.30 189 16.67 0.0161
2019-02-13 2018-12-31 13F AMEREN COM 023608102 2,488 82 3.41 162 6.58 0.0151
2018-11-14 2018-09-30 13F AMEREN COM 023608102 2,406 71 3.04 152 7.04 0.0154
2018-08-14 2018-06-30 13F AMEREN COM 023608102 2,335 -12 -0.51 142 6.77 0.0158
2018-05-08 2018-03-31 13F AMEREN COM 023608102 2,347 2,347 133 0.0156
2017-02-14 2016-12-31 13F AMEREN COM 023608102 0 -3,155 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AMEREN COM 023608102 3,155 400 14.52 155 4.73 0.0226
2016-07-29 2016-06-30 13F AMEREN COM 023608102 2,755 1,263 84.65 148 97.33 0.0216
2016-05-12 2016-03-31 13F AMEREN COM 023608102 1,492 70 4.92 75 22.95 0.0128
2016-01-22 2015-12-31 13F AMEREN COM 023608102 1,422 0 0.00 61 1.67 0.0118
2015-10-23 2015-09-30 13F AMEREN COM 023608102 1,422 0 0.00 60 11.11 0.0137
2015-07-15 2015-06-30 13F AMEREN COM 023608102 1,422 0 0.00 54 -10.00 0.0117
2015-04-15 2015-03-31 13F AMEREN COM 023608102 1,422 0 0.00 60 -9.09 0.0145
2015-02-13 2014-12-31 13F AMEREN COM 023608102 1,422 0 0.00 66 20.00 0.0164
2014-11-13 2014-09-30 13F AMEREN COM 023608102 1,422 0 0.00 55 -5.17 0.0179
2014-08-14 2014-06-30 13F AMEREN COM 023608102 1,422 1,422 58 0.0202
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.