Alliant Energy Corporation
DE ˙ DB ˙ US0188021085
60,38 € ↓ -0,15 (-0,25%)
2026-06-04
DEL PRIS
SecurityDE:AY1 / Alliant Energy Corporation
InstitutionWealthfront Advisers Llc
Latest Disclosed Ownership102,161 shares
Latest Disclosed Value $ 7,331,073
Wealthfront Advisers Llc reports 8.31% increase in ownership of AY1 / Alliant Energy Corporation

On May 5, 2026 - Wealthfront Advisers Llc filed a 13F-HR form disclosing ownership of 102,161 shares of Alliant Energy Corporation (DE:AY1) valued at $6,385,062 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 94,325 shares of Alliant Energy Corporation. This represents a change in shares of 8.31% during the quarter. The current value of the position is $6,168,481 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)
2026-05-05 2026-03-31 13F ALLIANT ENERGY COM 018802108 102,161 7,836 8.31 7,331 19.55 0.0161
2026-01-30 2025-12-31 13F ALLIANT ENERGY COM 018802108 94,325 7,599 8.76 6,132 4.89 0.0137
2025-11-06 2025-09-30 13F ALLIANT ENERGY COM 018802108 86,726 -630 -0.72 5,846 10.68 0.0137
2025-07-31 2025-06-30 13F ALLIANT ENERGY COM 018802108 87,356 -28,956 -24.90 5,282 -29.42 0.0136
2025-05-02 2025-03-31 13F ALLIANT ENERGY COM 018802108 116,312 83,373 253.11 7,485 284.19 0.0201
2025-04-01 2024-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 32,939 3,014 10.07 1,948 7.27 0.0057
2024-11-12 2024-09-30 13F ALLIANT ENERGY COM 018802108 29,925 3,432 12.95 1,816 34.72 0.0056
2024-08-14 2024-06-30 13F ALLIANT ENERGY COM 018802108 26,493 2,636 11.05 1,348 12.15 0.0045
2024-04-19 2024-03-31 13F ALLIANT ENERGY COM 018802108 23,857 -4,262 -15.16 1,202 -16.64 0.0042
2024-02-09 2023-12-31 13F ALLIANT ENERGY COM 018802108 28,119 -190 -0.67 1,443 5.18 0.0055
2023-11-01 2023-09-30 13F ALLIANT ENERGY COM 018802108 28,309 -7,074 -19.99 1,372 -26.13 0.0059
2023-08-07 2023-06-30 13F ALLIANT ENERGY COM 018802108 35,383 2,866 8.81 1,857 6.91 0.0079
2023-04-28 2023-03-31 13F ALLIANT ENERGY COM 018802108 32,517 -25,462 -43.92 1,736 -45.77 0.0079
2023-02-10 2022-12-31 13F ALLIANT ENERGY COM 018802108 57,979 -51,137 -46.86 3,201 -44.64 0.0155
2022-11-14 2022-09-30 13F ALLIANT ENERGY COM 018802108 109,116 -9,589 -8.08 5,782 -16.89 0.0307
2022-07-20 2022-06-30 13F ALLIANT ENERGY COM 018802108 118,705 -9,155 -7.16 6,957 -12.92 0.0350
2022-05-16 2022-03-31 13F ALLIANT ENERGY COM 018802108 127,860 59,975 88.35 7,989 91.45 0.0350
2022-01-21 2021-12-31 13F ALLIANT ENERGY COM 018802108 67,885 12,223 21.96 4,173 33.96 0.0176
2021-11-15 2021-09-30 13F ALLIANT ENERGY COM 018802108 55,662 16,578 42.42 3,115 42.96 0.0144
2021-08-16 2021-06-30 13F ALLIANT ENERGY COM 018802108 39,084 12,655 47.88 2,179 52.27 0.0103
2021-05-14 2021-03-31 13F ALLIANT ENERGY COM 018802108 26,429 -1,030 -3.75 1,431 1.13 0.0077
2021-02-16 2020-12-31 13F ALLIANT ENERGY COM 018802108 27,459 -225 -0.81 1,415 -1.05 0.0085
2020-11-16 2020-09-30 13F ALLIANT ENERGY COM 018802108 27,684 -1,044 -3.63 1,430 4.08 0.0102
2020-08-14 2020-06-30 13F ALLIANT ENERGY COM 018802108 28,728 -16,125 -35.95 1,374 -36.57 0.0107
2020-05-15 2020-03-31 13F ALLIANT ENERGY COM 018802108 44,853 8,557 23.58 2,166 9.06 0.0197
2020-01-21 2019-12-31 13F ALLIANT ENERGY COM 018802108 36,296 6,661 22.48 1,986 24.28 0.0147
2019-10-15 2019-09-30 13F ALLIANT ENERGY COM 018802108 29,635 1,818 6.54 1,598 17.07 0.0134
2019-08-13 2019-06-30 13F ALLIANT ENERGY COM 018802108 27,817 46 0.17 1,365 4.28 0.0119
2019-05-13 2019-03-31 13F ALLIANT ENERGY COM 018802108 27,771 6,484 30.46 1,309 45.61 0.0121
2019-02-14 2018-12-31 13F ALLIANT ENERGY COM 018802108 21,287 21,287 899 0.0096
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.