Alliant Energy Corporation
DE ˙ DB ˙ US0188021085
60,38 € ↓ -0,15 (-0,25%)
2026-06-04
AKTIENPREIS
SecurityDE:AY1 / Alliant Energy Corporation
InstitutionArvest Bank Trust Division
Latest Disclosed Ownership28,019 shares
Latest Disclosed Value $ 2,010,643
Arvest Bank Trust Division reports 1.29% increase in ownership of AY1 / Alliant Energy Corporation

On May 13, 2026 - Arvest Bank Trust Division filed a 13F-HR form disclosing ownership of 28,019 shares of Alliant Energy Corporation (DE:AY1) valued at $1,751,188 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 27,662 shares of Alliant Energy Corporation. This represents a change in shares of 1.29% during the quarter. The current value of the position is $1,691,787 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)
2026-05-13 2026-03-31 13F ALLIANT ENERGY COM 018802108 28,019 357 1.29 2,011 11.79 0.1093
2026-02-09 2025-12-31 13F ALLIANT ENERGY COM 018802108 27,662 -1,078 -3.75 1,798 -7.18 0.0974
2025-11-07 2025-09-30 13F ALLIANT ENERGY COM 018802108 28,740 -12,593 -30.47 1,937 -22.49 0.1075
2025-08-08 2025-06-30 13F ALLIANT ENERGY COM 018802108 41,333 786 1.94 2,499 -4.22 0.1458
2025-05-14 2025-03-31 13F ALLIANT ENERGY COM 018802108 40,547 7,019 20.93 2,609 31.63 0.1650
2025-02-13 2024-12-31 13F ALLIANT ENERGY COM 018802108 33,528 -459 -1.35 1,983 -3.88 0.1195
2024-11-25 2024-09-30 13F ALLIANT ENERGY COM 018802108 33,987 16,224 91.34 2,063 107.44 0.1189
2021-11-12 2021-09-30 13F ALLIANT ENERGY COM 018802108 17,763 3,547 24.95 994 25.35 0.0558
2021-08-19 2021-06-30 13F ALLIANT ENERGY COM 018802108 14,216 1,250 9.64 793 12.96 0.0437
2021-04-13 2021-03-31 13F ALLIANT ENERGY COM 018802108 12,966 2,467 23.50 702 29.76 0.0408
2021-02-17 2020-12-31 13F ALLIANT ENERGY COM 018802108 10,499 5,592 113.96 541 113.83 0.0336
2020-11-30 2020-09-30 13F ALLIANT ENERGY COM 018802108 4,907 4,907 253 0.0181
2020-01-14 2019-12-31 13F ALLIANT ENERGY COM 018802108 0 -4,987 -100.00 0 -100.00
2019-10-18 2019-09-30 13F ALLIANT ENERGY COM 018802108 4,987 4,987 269 0.0185
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.