Alliant Energy Corporation
DE ˙ DB ˙ US0188021085
60,38 € ↓ -0,15 (-0,25%)
2026-06-04
AKTIENPREIS
SecurityDE:AY1 / Alliant Energy Corporation
InstitutionWhittier Trust Co
Latest Disclosed Ownership1,741 shares
Latest Disclosed Value $ 126,135
Whittier Trust Co ownership in AY1 / Alliant Energy Corporation

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 1,741 shares of Alliant Energy Corporation (DE:AY1) valued at $108,812 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 1,741 shares of Alliant Energy Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $105,122 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)
2026-04-28 2026-03-31 13F ALLIANT ENERGY common 018802108 1,741 0 0.00 126 11.50 0.0007
2026-01-26 2025-12-31 13F ALLIANT ENERGY common 018802108 1,741 0 0.00 114 -2.59 0.0012
2025-10-31 2025-09-30 13F ALLIANT ENERGY common 018802108 1,741 -1,200 -40.80 116 -34.46 0.0013
2025-07-30 2025-06-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 2,941 1,200 68.93 178 58.04 0.0021
2025-05-02 2025-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 -1,400 -44.57 112 -39.46 0.0016
2025-02-11 2024-12-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 3,141 1,400 80.41 186 76.19 0.0024
2024-10-21 2024-09-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 0 0.00 106 19.32 0.0014
2024-07-29 2024-06-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 0 0.00 89 1.15 0.0013
2024-05-02 2024-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 0 0.00 88 -2.25 0.0013
2024-01-11 2023-12-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 -13 -0.74 89 5.95 0.0014
2023-10-27 2023-09-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,754 13 0.75 85 -7.69 0.0015
2023-07-24 2023-06-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 0 0.00 91 -1.09 0.0016
2023-04-21 2023-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 0 0.00 93 -4.17 0.0017
2023-01-25 2022-12-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,741 -22 -1.25 96 3.23 0.0019
2022-10-21 2022-09-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 1,763 1,165 194.82 93 165.71 0.0019
2022-07-28 2022-06-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 598 115 23.81 35 16.67 0.0007
2022-04-29 2022-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 483 72 17.52 30 20.00 0.0005
2022-01-19 2021-12-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 411 0 0.00 25 8.70 0.0004
2021-11-01 2021-09-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 411 0 0.00 23 0.00 0.0004
2021-07-29 2021-06-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 411 -1,589 -79.45 23 -78.70 0.0004
2021-04-26 2021-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 2,000 2,000 108 0.0021
2020-04-27 2020-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 0 -13 -100.00 0 -100.00
2020-01-31 2019-12-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 13 0 0.00 1 0.00 0.0000
2019-10-18 2019-09-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 13 0 0.00 1 0.00 0.0000
2019-07-23 2019-06-30 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 13 0 0.00 1 0.00 0.0000
2019-04-29 2019-03-31 13F ALLIANT ENERGY CORP COM US MID-CAP EQUITIES 018802108 13 13 1 0.0000
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.