Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionBokf, Na
Latest Disclosed Ownership428 shares
Latest Disclosed Value $ 47,046
Bokf, Na reports 4.65% increase in ownership of AEE / Ameren Corporation

On May 8, 2026 - Bokf, Na filed a 13F-HR form disclosing ownership of 428 shares of Ameren Corporation (US:AEE) valued at $47,046 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 409 shares of Ameren Corporation. This represents a change in shares of 4.65% during the quarter. The current value of the position is $45,466 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)
2026-05-08 2026-03-31 13F AMEREN common 023608102 428 19 4.65 47 17.50 0.0006
2026-02-03 2025-12-31 13F AMEREN common 023608102 409 0 0.00 41 -4.76 0.0006
2025-11-13 2025-09-30 13F AMEREN common 023608102 409 -97 -19.17 43 -12.50 0.0006
2025-08-12 2025-06-30 13F AMEREN common 023608102 506 -104 -17.05 49 -21.31 0.0008
2025-05-13 2025-03-31 13F AMEREN common 023608102 610 -18 -2.87 61 10.91 0.0011
2025-02-14 2024-12-31 13F AMEREN common 023608102 628 -40 -5.99 55 -5.17 0.0009
2024-11-14 2024-09-30 13F AMEREN common 023608102 668 10 1.52 59 26.09 0.0010
2024-08-08 2024-06-30 13F AMEREN COM 023608102 658 -9 -1.35 47 -4.17 0.0008
2024-05-15 2024-03-31 13F AMEREN COM 023608102 667 -440 -39.75 49 -40.00 0.0009
2024-02-14 2023-12-31 13F AMEREN COM 023608102 1,107 101 10.04 80 5.26 0.0016
2023-11-14 2023-09-30 13F AMEREN COM 023608102 1,006 -44 -4.19 76 -10.59 0.0017
2023-08-21 2023-06-30 13F AMEREN COM 023608102 1,050 103 10.88 86 4.94 0.0017
2023-05-11 2023-03-31 13F AMEREN COM 023608102 947 -1,741 -64.77 82 -66.11 0.0017
2023-02-13 2022-12-31 13F AMEREN COM 023608102 2,688 -5,284 -66.28 239 -62.77 0.0044
2022-11-14 2022-09-30 13F AMEREN COM 023608102 7,972 2,128 36.41 642 21.36 0.0130
2022-08-11 2022-06-30 13F AMEREN COM 023608102 5,844 -1,080 -15.60 529 -18.49 0.0101
2022-05-13 2022-03-31 13F AMEREN COM 023608102 6,924 -2,679 -27.90 649 -24.09 0.0107
2022-03-11 2021-12-31 13F AMEREN COM 023608102 9,603 2,524 35.65 855 48.95 0.0132
2021-11-10 2021-09-30 13F AMEREN COM 023608102 7,079 1,173 19.86 574 19.58 0.0099
2021-04-21 2021-03-31 13F AMEREN COM 023608102 5,906 45 0.77 480 5.03 0.0087
2021-02-12 2020-12-31 13F AMEREN COM 023608102 5,861 393 7.19 457 5.79 0.0087
2020-10-30 2020-09-30 13F AMEREN COM 023608102 5,468 -624 -10.24 432 0.70 0.0095
2020-08-12 2020-06-30 13F AMEREN COM 023608102 6,092 96 1.60 429 -1.83 0.0101
2020-05-13 2020-03-31 13F AMEREN COM 023608102 5,996 -607 -9.19 437 -13.81 0.0126
2020-02-12 2019-12-31 13F AMEREN COM 023608102 6,603 1,209 22.41 507 17.36 0.0115
2019-11-13 2019-09-30 13F AMEREN COM 023608102 5,394 92 1.74 432 8.54 0.0104
2019-08-14 2019-06-30 13F AMEREN COM 023608102 5,302 45 0.86 398 2.84 0.0096
2019-05-15 2019-03-31 13F AMEREN COM 023608102 5,257 -177 -3.26 387 9.01 0.0093
2019-02-13 2018-12-31 13F AMEREN COM 023608102 5,434 66 1.23 355 4.72 0.0102
2018-11-13 2018-09-30 13F AMEREN COM 023608102 5,368 15 0.28 339 4.31 0.0085
2018-08-13 2018-06-30 13F AMEREN COM 023608102 5,353 90 1.71 325 9.06 0.0087
2018-05-14 2018-03-31 13F AMEREN COM 023608102 5,263 -1,279 -19.55 298 -22.80 0.0085
2018-02-14 2017-12-31 13F AMEREN COM 023608102 6,542 14 0.21 386 2.39 0.0106
2017-11-14 2017-09-30 13F AMEREN COM 023608102 6,528 53 0.82 377 6.50 0.0109
2017-08-14 2017-06-30 13F AMEREN COM 023608102 6,475 373 6.11 354 6.31 0.0111
2017-05-15 2017-03-31 13F AMEREN COM 023608102 6,102 192 3.25 333 7.42 0.0104
2017-02-14 2016-12-31 13F AMEREN COM 023608102 5,910 -200 -3.27 310 3.33 0.0102
2016-11-10 2016-09-30 13F AMEREN COM 023608102 6,110 0 0.00 300 -8.54 0.0099
2016-08-12 2016-06-30 13F AMEREN COM 023608102 6,110 794 14.94 328 23.31 0.0116
2016-05-13 2016-03-31 13F AMEREN COM 023608102 5,316 -120 -2.21 266 13.19 0.0096
2016-02-09 2015-12-31 13F AMEREN COM 023608102 5,436 106 1.99 235 4.44 0.0085
2015-11-13 2015-09-30 13F AMEREN COM 023608102 5,330 -50 -0.93 225 10.84 0.0085
2015-08-13 2015-06-30 13F AMEREN COM 023608102 5,380 -79,801 -93.68 203 -94.35 0.0069
2015-05-14 2015-03-31 13F AMEREN COM 023608102 85,181 68 0.08 3,595 -8.43 0.1210
2015-02-12 2014-12-31 13F AMEREN COM 023608102 85,113 -48,404 -36.25 3,926 -23.29 0.1355
2014-11-13 2014-09-30 13F AMEREN COM 023608102 133,517 -20,305 -13.20 5,118 -18.61 0.1711
2014-08-14 2014-06-30 13F AMEREN COM 023608102 153,822 627 0.41 6,288 -0.38 0.2018
2014-05-14 2014-03-31 13F AMEREN COM 023608102 153,195 -11,379 -6.91 6,312 6.07 0.2092
2014-02-14 2013-12-31 13F AMEREN COM 023608102 164,574 2,919 1.81 5,951 5.66 0.1994
2013-11-12 2013-09-30 13F AMEREN COM 023608102 161,655 -20,960 -11.48 5,632 -10.45 0.2045
2013-08-14 2013-06-30 13F AMEREN COM 023608102 182,615 182,615 6,289 0.2376
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.