Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionBessemer Group Inc
Latest Disclosed Ownership2,758,605 shares
Latest Disclosed Value $ 303,227
Bessemer Group Inc reports 0.68% increase in ownership of AEE / Ameren Corporation

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 2,758,605 shares of Ameren Corporation (US:AEE) valued at $303,225,862 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,740,079 shares of Ameren Corporation. This represents a change in shares of 0.68% during the quarter. The current value of the position is $293,046,609 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)
2026-05-06 2026-03-31 13F AMEREN SC 023608102 2,758,605 18,526 0.68 303 10.99 0.4766
2026-02-05 2025-12-31 13F AMEREN SC 023608102 2,740,079 -35,511 -1.28 274 -5.54 0.4201
2025-11-05 2025-09-30 13F AMEREN SC 023608102 2,775,590 -28,151 -1.00 290 7.43 0.4431
2025-08-01 2025-06-30 13F AMEREN SC 023608102 2,803,741 -12,146 -0.43 269 -4.61 0.4371
2025-04-23 2025-03-31 13F AMEREN SC 023608102 2,815,887 -1,877 -0.07 283 12.35 0.5069
2025-02-13 2024-12-31 13F AMEREN SC 023608102 2,817,764 -26,857 -0.94 251 1.21 0.4100
2024-11-12 2024-09-30 13F AMEREN SC 023608102 2,844,621 -9,970 -0.35 249 22.77 0.4098
2024-08-13 2024-06-30 13F AMEREN SC 023608102 2,854,591 -23,130 -0.80 203 -4.72 0.3580
2024-08-13 2024-03-31 13F/A-1 AMEREN SC 023608102 2,877,721 23,967 0.84 213 2.91 0.3847
2024-05-13 2024-03-31 13F AMEREN SC 023608102 2,877,721 23,967 213 0.3847
2024-02-09 2023-12-31 13F AMEREN SC 023608102 2,853,754 -31,536 -1.09 206 -4.19 0.4022
2023-11-13 2023-09-30 13F AMEREN SC 023608102 2,885,290 -54,375 -1.85 216 -10.42 0.4740
2023-08-10 2023-06-30 13F AMEREN SC 023608102 2,939,665 -30,318 -1.02 240 -6.25 0.5094
2023-05-10 2023-03-31 13F AMEREN SC 023608102 2,969,983 -14,270 -0.48 257 -3.40 0.6090
2023-02-13 2022-12-31 13F AMEREN SC 023608102 2,984,253 849,651 39.80 265 -99.85 0.6463
2022-11-09 2022-09-30 13F AMEREN SC 023608102 2,134,602 197,787 10.21 171,944 -1.75 0.4487
2022-08-10 2022-06-30 13F AMEREN SC 023608102 1,936,815 -1,015 -0.05 175,010 -3.68 0.4364
2022-05-12 2022-03-31 13F AMEREN SC 023608102 1,937,830 24,549 1.28 181,692 6.69 0.3812
2022-01-27 2021-12-31 13F AMEREN SC 023608102 1,913,281 25,527 1.35 170,302 11.38 0.3413
2021-11-12 2021-09-30 13F AMEREN SC 023608102 1,887,754 19,256 1.03 152,907 2.24 0.3261
2021-08-06 2021-06-30 13F AMEREN SC 023608102 1,868,498 8,864 0.48 149,554 -1.15 0.3246
2021-05-13 2021-03-31 13F AMEREN SC 023608102 1,859,634 22,148 1.21 151,300 5.48 0.3625
2021-02-09 2020-12-31 13F AMEREN SC 023608102 1,837,486 -394,152 -17.66 143,436 -18.72 0.3790
2020-11-12 2020-09-30 13F AMEREN SC 023608102 2,231,638 -23,426 -1.04 176,481 11.23 0.5215
2020-08-05 2020-06-30 13F AMEREN SC 023608102 2,255,064 48,814 2.21 158,666 -1.25 0.5009
2020-04-30 2020-03-31 13F AMEREN SC 023608102 2,206,250 50,760 2.35 160,681 -2.94 0.6472
2020-02-04 2019-12-31 13F AMEREN SC 023608102 2,155,490 1,934 0.09 165,540 -3.98 0.5359
2019-11-07 2019-09-30 13F AMEREN SC 023608102 2,153,556 -203,535 -8.64 172,393 -2.63 0.6154
2019-07-19 2019-06-30 13F AMEREN SC 023608102 2,357,091 -9,542 -0.40 177,042 1.71 0.5964
2019-05-13 2019-03-31 13F AMEREN SC 023608102 2,366,633 -11,277 -0.47 174,067 12.22 0.6683
2019-05-21 2018-12-31 13F/A-1 AMEREN SC 023608102 2,377,910 -64,274 -2.63 155,113 0.47 0.6756
2019-02-12 2018-12-31 13F AMEREN SC 023608102 2,377,910 -64,274 155,113 0.6753
2018-11-06 2018-09-30 13F AMEREN SC 023608102 2,442,184 2,442,184 154,395 0.5748
2018-05-10 2018-03-31 13F AMEREN SC 023608102 0 -625 -100.00 0 -100.00
2018-01-30 2017-12-31 13F AMEREN SC 023608102 625 -1,443 -69.78 37 -69.17 0.0001
2017-11-03 2017-09-30 13F AMEREN SC 023608102 2,068 40 1.97 120 8.11 0.0005
2017-07-27 2017-06-30 13F AMEREN SC 023608102 2,028 2,028 111 0.0004
2017-05-12 2017-03-31 13F AMEREN SC 023608102 0 -269 -100.00 0 -100.00
2017-02-07 2016-12-31 13F AMEREN SC 023608102 269 269 14 0.0001
2016-05-11 2016-03-31 13F AMEREN SC 023608102 0 -2,855 -100.00 0 -100.00
2016-02-12 2015-12-31 13F AMEREN SC 023608102 2,855 2,855 -37.25 123 -29.31 0.0007
2015-11-16 2015-09-30 13F AMEREN SC 023608102 0 -1,575 -100.00 0 -100.00
2015-08-14 2015-06-30 13F AMEREN SC 023608102 1,575 -3,165 -66.77 59 -70.50 0.0003
2015-06-18 2015-03-31 13F/A-1 AMEREN SC 023608102 4,740 -19 -0.40 200 -9.09 0.0010
2015-05-14 2015-03-31 13F AMEREN SC 023608102 4,740 200
2015-02-17 2014-12-31 13F AMEREN SC 023608102 4,759 209 4.59 220 26.44 0.0012
2014-12-11 2014-09-30 13F/A-1 AMEREN SC 023608102 4,550 0 0.00 174 -6.45 0.0010
2014-11-13 2014-09-30 13F AMEREN SC 023608102 4,550 0 174 0.0011
2014-08-13 2014-06-30 13F AMEREN SC 023608102 4,550 0 0.00 186 -0.53 0.0011
2014-05-14 2014-03-31 13F AMEREN SC 023608102 4,550 -5,030 -52.51 187 -45.95 0.0013
2014-02-18 2013-12-31 13F AMEREN SC 023608102 9,580 9,580 346 0.0025
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.