아메렌 코퍼레이션
US ˙ NYSE ˙ US0236081024

SecurityAEE / Ameren Corporation
InstitutionAllstate Corp
Latest Disclosed Ownership25,825 shares
Latest Disclosed Value $ 2,838,684
Allstate Corp reports 29.96% increase in ownership of AEE / Ameren Corporation

On May 11, 2026 - Allstate Corp filed a 13F-HR form disclosing ownership of 25,825 shares of Ameren Corporation (US:AEE) valued at $2,838,684 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 19,872 shares of Ameren Corporation. This represents a change in shares of 29.96% during the quarter. The current value of the position is $2,763,017 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-11 2026-03-31 13F AMEREN ORD Equity 023608102 25,825 5,953 29.96 2,839 43.04 0.0304
2026-02-09 2025-12-31 13F AMEREN ORD Equity 023608102 19,872 9,809 97.48 1,984 88.95 0.0271
2025-10-29 2025-09-30 13F AMEREN ORD Equity 023608102 10,063 10,063 1,050 0.0240
2025-08-05 2025-06-30 13F AMEREN ORD Equity 023608102 0 -12,351 -100.00 0 -100.00
2025-05-14 2025-03-31 13F AMEREN ORD Equity 023608102 12,351 4,285 53.12 1,240 72.46 0.0364
2025-02-12 2024-12-31 13F AMEREN ORD Equity 023608102 8,066 8,066 719 0.0212
2017-11-14 2017-09-30 13F AMEREN COMMON 023608102 0 -16,009 -100.00 0 -100.00
2017-08-14 2017-06-30 13F AMEREN COMMON 023608102 16,009 -53,969 -77.12 875 -77.09 0.0465
2017-05-15 2017-03-31 13F AMEREN COMMON 023608102 69,978 28,933 70.49 3,820 77.43 0.2315
2017-02-14 2016-12-31 13F AMEREN COMMON 023608102 41,045 -69,448 -62.85 2,153 -60.38 0.1287
2016-11-14 2016-09-30 13F AMEREN COMMON 023608102 110,493 -24,554 -18.18 5,434 -24.90 0.3833
2016-08-11 2016-06-30 13F AMEREN COMMON 023608102 135,047 -17,503 -11.47 7,236 -5.33 0.4734
2016-05-16 2016-03-31 13F AMEREN COMMON 023608102 152,550 152,550 7,643 0.6589
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.