Mercer Global Advisors Inc /adv reports 23.03% increase in ownership of AEE / Ameren Corporation

아메렌 코퍼레이션

MX ˙ BMV ˙ US0236081024

Security	MX:AEE / Ameren Corporation
Institution	Mercer Global Advisors Inc /adv
Latest Disclosed Ownership	33,696 shares
Latest Disclosed Value	$ 3,703,821

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 33,696 shares of Ameren Corporation (MX:AEE) valued at $3,703,821 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 27,388 shares of Ameren Corporation. This represents a change in shares of 23.03% 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-15	2026-03-31	13F	AMEREN	COM	023608102	33,696	6,308	23.03	3,704	35.44	0.0055
2026-02-17	2025-12-31	13F	AMEREN	COM	023608102	27,388	2,979	12.20	2,735	7.34	0.0042
2025-11-14	2025-09-30	13F	AMEREN	COM	023608102	24,409	1,764	7.79	2,548	17.16	0.0043
2025-08-14	2025-06-30	13F	AMEREN	COM	023608102	22,645	108	0.48	2,175	-3.89	0.0044
2025-05-15	2025-03-31	13F	AMEREN	COM	023608102	22,537	-437	-1.90	2,263	10.50	0.0052
2025-02-14	2024-12-31	13F	AMEREN	COM	023608102	22,974	22,974		2,048		0.0050
2024-05-15	2024-03-31	13F	AMEREN	COM	023608102	0	-196,156	-100.00	0	-100.00
2024-02-15	2023-12-31	13F	AMEREN	COM	023608102	196,156	139,156	244.13	14	250.00	0.0427
2023-11-15	2023-09-30	13F/A-1	AMEREN	COM	023608102	57,000	-14	-0.02	4	0.00	0.0162
2023-11-14	2023-09-30	13F	AMEREN	COM	023608102	57,000	-14		4		0.0162
2023-08-14	2023-06-30	13F	AMEREN	COM	023608102	57,014	1,663	3.00	5	0.00	0.0185
2023-05-16	2023-03-31	13F	AMEREN	COM	023608102	55,351	42	0.08	5	0.00	0.0217
2023-02-09	2022-12-31	13F	AMEREN	COM	023608102	55,309	4,524	8.91	5	-99.90	0.0246
2022-11-15	2022-09-30	13F	AMEREN	COM	023608102	50,785	-397	-0.78	4,091	-11.53	0.0243
2022-08-10	2022-06-30	13F	AMEREN	COM	023608102	51,182	455	0.90	4,624	-2.78	0.0283
2022-05-10	2022-03-31	13F	AMEREN	COM	023608102	50,727	905	1.82	4,756	7.24	0.0280
2022-02-04	2021-12-31	13F	AMEREN	COM	023608102	49,822	52	0.10	4,435	10.02	0.0274
2021-11-10	2021-09-30	13F	AMEREN	COM	023608102	49,770	1,661	3.45	4,031	4.67	0.0282
2021-08-10	2021-06-30	13F	AMEREN	COM	023608102	48,109	-17	-0.04	3,851	-1.66	0.0296
2021-08-10	2021-03-31	13F/A-1	AMEREN	COM	023608102	48,126	2,938	6.50	3,916	11.03	0.0356
2021-05-11	2021-03-31	13F	AMEREN	COM	023608102	48,126	2,938		3,916		0.0375
2021-02-12	2020-12-31	13F	AMEREN	COM	023608102	45,188	68	0.15	3,527	-1.15	0.0440
2020-12-10	2020-09-30	13F	AMEREN	COM	023608102	45,120	1,157	2.63	3,568	15.36	0.0537
2020-08-10	2020-06-30	13F	AMEREN	COM	023608102	43,963	358	0.82	3,093	-2.61	0.0562
2020-05-18	2020-03-31	13F	AMEREN	COM	023608102	43,605	-6,112	-12.29	3,176	-16.82	0.0699
2020-02-13	2019-12-31	13F	AMEREN CORP COM	COM	023608102	49,717	-2,477	-4.75	3,818	-8.62	0.0762
2019-11-12	2019-09-30	13F	AMEREN CORP COM	COM	023608102	52,194	-1,165	-2.18	4,178	4.24	0.0983
2019-08-14	2019-06-30	13F	AMEREN CORP COM	COM	023608102	53,359	-22	-0.04	4,008	2.09	0.1062
2019-04-23	2019-03-31	13F/A-1	AMEREN CORP COM	COM	023608102	53,381	53,381		3,926		0.1412
2019-04-12	2019-03-31	13F	AMEREN CORP COM	COM	023608102	43,873			2,862		0.1525

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.