Alliant Energy Corporation
DE ˙ DB ˙ US0188021085
60,38 € ↓ -0,15 (-0,25%)
2026-06-04
DEL PRIS
SecurityDE:AY1 / Alliant Energy Corporation
InstitutionWealthspire Advisors, LLC
Latest Disclosed Ownership9,197 shares
Latest Disclosed Value $ 659,965
Wealthspire Advisors, LLC reports 6.31% decrease in ownership of AY1 / Alliant Energy Corporation

On May 1, 2026 - Wealthspire Advisors, LLC filed a 13F-HR form disclosing ownership of 9,197 shares of Alliant Energy Corporation (DE:AY1) valued at $574,812 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,816 shares of Alliant Energy Corporation. This represents a change in shares of -6.31% during the quarter. The current value of the position is $555,315 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)
2026-05-01 2026-03-31 13F ALLIANT ENERGY COM 018802108 9,197 -619 -6.31 660 3.29 0.0052
2026-02-12 2025-12-31 13F ALLIANT ENERGY COM 018802108 9,816 956 10.79 638 6.87 0.0051
2025-11-14 2025-09-30 13F ALLIANT ENERGY COM 018802108 8,860 -261 -2.86 597 8.35 0.0031
2025-08-11 2025-06-30 13F ALLIANT ENERGY COM 018802108 9,121 -872 -8.73 552 -14.31 0.0031
2025-05-09 2025-03-31 13F ALLIANT ENERGY COM 018802108 9,993 1,100 12.37 643 22.48 0.0038
2025-02-04 2024-12-31 13F ALLIANT ENERGY COM 018802108 8,893 -334 -3.62 526 -6.25 0.0052
2024-11-13 2024-09-30 13F ALLIANT ENERGY COM 018802108 9,227 -392 -4.08 560 14.52 0.0057
2024-08-08 2024-06-30 13F ALLIANT ENERGY COM 018802108 9,619 1,051 12.27 490 13.46 0.0063
2024-05-06 2024-03-31 13F ALLIANT ENERGY COM 018802108 8,568 11 0.13 432 -1.60 0.0058
2024-02-07 2023-12-31 13F ALLIANT ENERGY COM 018802108 8,557 -46 -0.53 439 5.29 0.0062
2023-11-06 2023-09-30 13F ALLIANT ENERGY COM 018802108 8,603 1,251 17.02 417 8.05 0.0069
2023-08-01 2023-06-30 13F ALLIANT ENERGY COM 018802108 7,352 -8 -0.11 386 -2.04 0.0063
2023-05-09 2023-03-31 13F ALLIANT ENERGY COM 018802108 7,360 -669 -8.33 393 -11.29 0.0067
2023-02-14 2022-12-31 13F ALLIANT ENERGY COM 018802108 8,029 -1,493 -15.68 443 -12.28 0.0081
2022-11-14 2022-09-30 13F ALLIANT ENERGY COM 018802108 9,522 -35 -0.37 505 -9.82 0.0106
2022-08-09 2022-06-30 13F ALLIANT ENERGY COM 018802108 9,557 277 2.98 560 -3.45 0.0117
2022-05-09 2022-03-31 13F ALLIANT ENERGY COM 018802108 9,280 3,370 57.02 580 59.78 0.0130
2022-02-14 2021-12-31 13F ALLIANT ENERGY COM 018802108 5,910 -611 -9.37 363 -0.55 0.0080
2021-11-15 2021-09-30 13F ALLIANT ENERGY COM 018802108 6,521 -4,277 -39.61 365 -39.37 0.0076
2021-08-13 2021-06-30 13F ALLIANT ENERGY COM 018802108 10,798 -1,171 -9.78 602 -7.10 0.0158
2021-05-17 2021-03-31 13F ALLIANT ENERGY COM 018802108 11,969 852 7.66 648 13.09 0.0154
2021-02-16 2020-12-31 13F ALLIANT ENERGY COM 018802108 11,117 11,117 573 0.0171
2020-08-14 2020-06-30 13F ALLIANT ENERGY COM 018802108 0 -13,446 -100.00 0 -100.00
2020-05-12 2020-03-31 13F ALLIANT ENERGY COM 018802108 13,446 13,446 649 0.0272
2019-05-07 2019-03-31 13F ALLIANT ENERGY COM 018802108 0 -714 -100.00 0 -100.00
2019-02-14 2018-12-31 13F ALLIANT ENERGY COM 018802108 714 714 30 0.0029
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.