Ameren Corporation
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionPanagora Asset Management Inc
Latest Disclosed Ownership37,963 shares
Latest Disclosed Value $ 4,172,893
Panagora Asset Management Inc reports 50.00% increase in ownership of AEE / Ameren Corporation

On May 14, 2026 - Panagora Asset Management Inc filed a 13F-HR form disclosing ownership of 37,963 shares of Ameren Corporation (MX:AEE) valued at $4,172,893 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,309 shares of Ameren Corporation. This represents a change in shares of 50.00% during the quarter.

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)
2026-05-14 2026-03-31 13F AMEREN COM 023608102 37,963 12,654 50.00 4,173 65.10 0.0156
2026-02-13 2025-12-31 13F AMEREN COM 023608102 25,309 16,374 183.26 2,527 171.14 0.0090
2025-11-13 2025-09-30 13F AMEREN COM 023608102 8,935 5,537 162.95 933 185.89 0.0038
2025-08-13 2025-06-30 13F AMEREN COM 023608102 3,398 1,119 49.10 326 42.98 0.0015
2025-05-15 2025-03-31 13F AMEREN COM 023608102 2,279 -56,970 -96.15 229 -95.68 0.0011
2025-02-13 2024-12-31 13F AMEREN COM 023608102 59,249 -281,232 -82.60 5,281 -82.27 0.0244
2024-11-13 2024-09-30 13F AMEREN COM 023608102 340,481 296,061 666.50 29,778 842.94 0.1423
2024-07-29 2024-06-30 13F AMEREN COM 023608102 44,420 -17,401 -28.15 3,159 -30.93 0.0159
2024-05-07 2024-03-31 13F AMEREN COM 023608102 61,821 4,092 7.09 4,572 9.48 0.0238
2024-02-08 2023-12-31 13F AMEREN COM 023608102 57,729 -284 -0.49 4,176 -3.80 0.0234
2023-10-31 2023-09-30 13F AMEREN COM 023608102 58,013 -2 -0.00 4,341 -8.38 0.0270
2023-08-11 2023-06-30 13F AMEREN COM 023608102 58,015 0 0.00 4,738 -5.45 0.0279
2023-05-12 2023-03-31 13F AMEREN COM 023608102 58,015 -22,511 -27.95 5,012 -30.01 0.0317
2023-02-13 2022-12-31 13F AMEREN COM 023608102 80,526 -8,035 -9.07 7,160 0.36 0.0470
2022-11-14 2022-09-30 13F AMEREN COM 023608102 88,561 -5,759 -6.11 7,134 -16.30 0.0495
2022-08-15 2022-06-30 13F AMEREN COM 023608102 94,320 -1,444 -1.51 8,523 -5.08 0.0559
2022-05-12 2022-03-31 13F AMEREN COM 023608102 95,764 13,795 16.83 8,979 23.07 0.0489
2022-02-10 2021-12-31 13F AMEREN COM 023608102 81,969 -3,755 -4.38 7,296 5.07 0.0386
2021-11-10 2021-09-30 13F AMEREN COM 023608102 85,724 -5 -0.01 6,944 1.19 0.0371
2021-08-11 2021-06-30 13F AMEREN COM 023608102 85,729 -74,341 -46.44 6,862 -47.31 0.0368
2021-05-12 2021-03-31 13F AMEREN COMMON 023608102 160,070 -18,463 -10.34 13,023 -6.55 0.0731
2021-02-10 2020-12-31 13F AMEREN COMMON 023608102 178,533 98,211 122.27 13,936 119.40 0.0825
2020-11-13 2020-09-30 13F AMEREN COMMON 023608102 80,322 12,309 18.10 6,352 32.75 0.0398
2020-08-12 2020-06-30 13F AMEREN COMMON 023608102 68,013 8,101 13.52 4,785 9.65 0.0305
2020-05-14 2020-03-31 13F AMEREN COMMON 023608102 59,912 -6,569 -9.88 4,364 -14.53 0.0309
2020-02-12 2019-12-31 13F AMEREN COMMON 023608102 66,481 0 0.00 5,106 -4.06 0.0232
2019-11-12 2019-09-30 13F AMEREN COMMON 023608102 66,481 -160 -0.24 5,322 6.33 0.0246
2019-08-09 2019-06-30 13F AMEREN COMMON 023608102 66,641 -141,451 -67.98 5,005 -67.30 0.0224
2019-05-15 2019-03-31 13F AMEREN COMMON 023608102 208,092 -452,568 -68.50 15,305 -64.49 0.0680
2019-02-14 2018-12-31 13F AMEREN COMMON 023608102 660,660 -67,220 -9.24 43,095 -6.35 0.2006
2018-11-13 2018-09-30 13F AMEREN COMMON 023608102 727,880 -33,508 -4.40 46,017 -0.68 0.1732
2018-08-14 2018-06-30 13F AMEREN COMMON 023608102 761,388 -78,868 -9.39 46,330 -2.64 0.1837
2018-05-15 2018-03-31 13F AMEREN COMMON 023608102 840,256 -787,068 -48.37 47,584 -50.43 0.1877
2018-02-14 2017-12-31 13F AMEREN COMMON 023608102 1,627,324 61,338 3.92 95,996 5.98 0.3602
2017-11-14 2017-09-30 13F AMEREN COMMON 023608102 1,565,986 -19,600 -1.24 90,577 4.49 0.3586
2017-08-14 2017-06-30 13F AMEREN COMMON 023608102 1,585,586 -108,188 -6.39 86,684 -6.25 0.3489
2017-05-15 2017-03-31 13F AMEREN COMMON 023608102 1,693,774 738,489 77.31 92,463 84.51 0.3850
2017-02-14 2016-12-31 13F AMEREN COMMON 023608102 955,285 253,998 36.22 50,114 45.30 0.2295
2016-11-14 2016-09-30 13F AMEREN COMMON 023608102 701,287 199,230 39.68 34,489 28.21 0.1644
2016-08-15 2016-06-30 13F AMEREN COMMON 023608102 502,057 24,032 5.03 26,900 12.32 0.1336
2016-05-16 2016-03-31 13F AMEREN COMMON 023608102 478,025 57,186 13.59 23,949 31.64 0.1189
2016-02-12 2015-12-31 13F AMEREN COMMON 023608102 420,839 -36,440 -7.97 18,193 -5.88 0.0896
2015-11-13 2015-09-30 13F AMEREN COMMON 023608102 457,279 13,966 3.15 19,329 15.71 0.1020
2015-08-14 2015-06-30 13F AMEREN COMMON 023608102 443,313 20,905 4.95 16,704 -6.29 0.0837
2015-05-15 2015-03-31 13F AMEREN COMMON 023608102 422,408 -68,493 -13.95 17,826 -21.28 0.0905
2015-02-13 2014-12-31 13F AMEREN COMMON 023608102 490,901 16,249 3.42 22,645 24.47 0.1158
2014-11-12 2014-09-30 13F AMEREN COMMON 023608102 474,652 99,932 26.67 18,193 18.77 0.0882
2014-08-14 2014-06-30 13F AMEREN COMMON 023608102 374,720 -118,278 -23.99 15,318 -24.59 0.0744
2014-05-15 2014-03-31 13F AMEREN COMMON 023608102 492,998 -250,093 -33.66 20,312 -24.41 0.0959
2014-02-21 2013-12-31 13F AMEREN COMMON 023608102 743,091 -49,358 -6.23 26,870 -2.68 0.1244
2013-11-14 2013-09-30 13F AMEREN COMMON 023608102 792,449 -278,078 -25.98 27,609 -25.12 0.1356
2013-08-14 2013-06-30 13F AMEREN COMMON 023608102 1,070,527 1,070,527 36,869 0.1886
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.