Ameren Corporation
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership176,827 shares
Latest Disclosed Value $ 19,436,823
Macquarie Group Ltd reports 3.30% decrease in ownership of AEE / Ameren Corporation

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 176,827 shares of Ameren Corporation (US:AEE) valued at $19,436,824 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 182,857 shares of Ameren Corporation. This represents a change in shares of -3.30% during the quarter. The current value of the position is $18,784,332 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)
2026-05-15 2026-03-31 13F AMEREN COM 023608102 176,827 -6,030 -3.30 19,437 6.44 0.0905
2026-02-13 2025-12-31 13F AMEREN COM 023608102 182,857 -32,499 -15.09 18,260 -18.77 0.0798
2025-11-13 2025-09-30 13F AMEREN COM 023608102 215,356 6,178 2.95 22,479 11.89 0.0262
2025-08-14 2025-06-30 13F AMEREN COM 023608102 209,178 21 0.01 20,090 -4.33 0.0246
2025-08-14 2025-03-31 13F/A-1 AMEREN COM 023608102 209,157 -190,546 -47.67 21,000 -39.50 0.0261
2025-05-15 2025-03-31 13F AMEREN COM 023608102 209,157 -190,546 19,475 0.0159
2025-02-14 2024-12-31 13F AMEREN COM 023608102 399,703 -105,818 -20.93 34,707 -21.50 0.0421
2024-11-14 2024-09-30 13F AMEREN COM 023608102 505,521 -60,244 -10.65 44,213 9.90 0.0477
2024-08-09 2024-06-30 13F AMEREN COM 023608102 565,765 -19 -0.00 40,231 -3.86 0.0461
2024-05-14 2024-03-31 13F AMEREN COM 023608102 565,784 -66,183 -10.47 41,845 -8.47 0.0475
2024-02-14 2023-12-31 13F AMEREN COM 023608102 631,967 40,631 6.87 45,716 56.38 0.0528
2023-11-14 2023-09-30 13F AMEREN COM 023608102 591,336 -218,584 -26.99 29,233 -55.81 0.0367
2023-10-27 2023-06-30 13F/A-2 AMEREN COM 023608102 809,920 285,346 54.40 66,146 46.19 0.0756
2023-10-12 2023-06-30 13F/A-1 AMEREN COM 023608102 809,920 285,346 66,146 0.0665
2023-08-14 2023-06-30 13F AMEREN COM 023608102 2,394,333 1,869,759 31,632 0.0321
2023-06-01 2023-03-31 13F/A-1 AMEREN COM 023608102 524,574 -500,138 -48.81 45,249 -31.35 0.0537
2023-05-15 2023-03-31 13F AMEREN COM 023608102 524,574 -500,138 45,249 0.0415
2023-02-21 2022-12-31 13F AMEREN COM 023608102 1,024,712 425,838 71.11 65,913 34.14 0.0778
2022-11-14 2022-09-30 13F AMEREN COM 023608102 598,874 -353,585 -37.12 49,136 -17.56 0.0603
2022-08-17 2022-06-30 13F/A-1 AMEREN COM 023608102 952,459 570,106 149.10 59,599 170.71 0.0669
2022-08-15 2022-06-30 13F AMEREN COM 023608102 952,459 570,106 59,599 0.0213
2022-05-16 2022-03-31 13F AMEREN COM 023608102 382,353 222,713 139.51 22,016 60.00 0.0167
2022-02-11 2021-12-31 13F AMEREN COM 023608102 159,640 106,696 201.53 13,760 220.90 0.0115
2021-11-12 2021-09-30 13F AMEREN COM 023608102 52,944 -11,858 -18.30 4,288 -17.33 0.0037
2021-08-13 2021-06-30 13F AMEREN COM 023608102 64,802 13,103 25.34 5,187 23.29 0.0043
2021-05-14 2021-03-31 13F AMEREN COM 023608102 51,699 -3,764 -6.79 4,207 -2.82 0.0059
2021-02-16 2020-12-31 13F AMEREN COM 023608102 55,463 -364 -0.65 4,329 -1.95 0.0063
2020-11-13 2020-09-30 13F AMEREN COM 023608102 55,827 8,569 18.13 4,415 32.74 0.0075
2020-08-11 2020-06-30 13F AMEREN COM 023608102 47,258 6,849 16.95 3,326 13.01 0.0057
2020-05-15 2020-03-31 13F AMEREN COM 023608102 40,409 -2,141 -5.03 2,943 -9.94 0.0060
2020-03-18 2019-12-31 13F/A-2 AMEREN COM 023608102 42,550 52 0.12 3,268 -3.94 0.0047
2020-02-28 2019-12-31 13F/A-1 AMEREN COM 023608102 42,550 0 3,268 0.0047
2020-02-14 2019-12-31 13F AMEREN COM 023608102 42,550 52 3,268 4,101.0630
2019-11-14 2019-09-30 13F AMEREN COM 023608102 42,498 -1,100 -2.52 3,402 3.91 0.0057
2019-11-06 2019-06-30 13F/A-2 AMEREN COM 023608102 43,598 3,389 8.43 3,274 10.72 0.0055
2019-09-24 2019-06-30 13F/A-1 AMEREN COM 023608102 43,598 0 3,274 0.0056
2019-08-14 2019-06-30 13F AMEREN COM 023608102 43,598 3,389 3,274
2019-05-15 2019-03-31 13F AMEREN COM 023608102 40,209 6,209 18.26 2,957 33.32 0.0050
2019-02-15 2018-12-31 13F AMEREN COM 023608102 34,000 -5,600 -14.14 2,218 -11.42 0.0043
2018-11-15 2018-09-30 13F AMEREN COM 023608102 39,600 0 0.00 2,504 3.90 0.0041
2019-03-21 2018-06-30 13F/A-1 AMEREN COM 023608102 39,600 -9,500 -19.35 2,410 -13.34 0.0042
2018-08-14 2018-06-30 13F AMERICAN AIRLS GROUP COM 023608102 39,600 -9,500 2,410
2018-05-11 2018-03-31 13F AMEREN COM 023608102 49,100 -24,600 -33.38 2,781 -33.00 0.0051
2018-02-14 2017-12-31 13F AMEREN COM 023608102 73,700 2,000 2.79 4,151 0.10 0.0073
2017-11-08 2017-09-30 13F AMEREN COM 023608102 71,700 -4,200 -5.53 4,147 -0.05 0.0074
2017-08-14 2017-06-30 13F AMEREN COM 023608102 75,900 -1,100 -1.43 4,149 -1.28 0.0076
2017-05-15 2017-03-31 13F Ameren COM 023608102 77,000 -1,600 -2.04 4,203 1.94 0.0076
2017-03-30 2016-12-31 13F/A-1 Ameren Common Stock 023608102 78,600 -77,491 -49.64 4,123 -46.29 0.0079
2017-02-15 2016-12-31 13F Ameren Common Stock 023608102 78,600 4,123
2016-11-15 2016-09-30 13F Ameren Common Stock 023608102 156,091 93,091 147.76 7,677 127.40 0.0148
2016-09-14 2016-06-30 13F/A-1 Ameren Common Stock 023608102 63,000 -3,900 -5.83 3,376 0.72 0.0066
2016-08-15 2016-06-30 13F Ameren Common Stock 023608102 63,000 3,376
2016-05-16 2016-03-31 13F Ameren Common Stock 023608102 66,900 -6,000 -8.23 3,352 6.38 0.0068
2016-02-16 2015-12-31 13F Ameren Common Stock 023608102 72,900 0 0.00 3,151 2.27 0.0065
2015-11-16 2015-09-30 13F Ameren Common Stock 023608102 72,900 -3,500 -4.58 3,081 7.02 0.0066
2015-08-21 2015-06-30 13F/A-1 Ameren Common Stock 023608102 76,400 0 0.00 2,879 -10.70 0.0057
2015-08-14 2015-06-30 13F Ameren Common Stock 023608102 76,400 2,879
2015-05-18 2015-03-31 13F Ameren Common Stock 023608102 76,400 13,200 20.89 3,224 10.60 0.0063
2015-02-17 2014-12-31 13F Ameren Common Stock 023608102 63,200 10,000 18.80 2,915 42.96 0.0060
2014-11-14 2014-09-30 13F Ameren Common Stock 023608102 53,200 0 0.00 2,039 -6.25 0.0044
2014-08-14 2014-06-30 13F Ameren Common 023608102 53,200 -800 -1.48 2,175 -2.25 0.0049
2014-05-15 2014-03-31 13F Ameren Common Stock 023608102 54,000 0 0.00 2,225 13.93 0.0038
2014-02-14 2013-12-31 13F Ameren Common Stock 023608102 54,000 5,900 12.27 1,953 16.53 0.0035
2013-11-14 2013-09-30 13F Ameren Common Stock 023608102 48,100 4,200 9.57 1,676 10.85 0.0033
2013-08-16 2013-06-30 13F/A-1 Ameren Common Stock 023608102 43,900 43,900 1,512 0.0033
2013-08-14 2013-06-30 13F Ameren Common Stock 023608102 43,900 1,512 0.0033
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.