Alliant Energy Corporation
DE ˙ DB ˙ US0188021085
60,53 € ↑1,38 (2,33%)
2026-06-03
AKTIENPREIS
SecurityDE:AY1 / Alliant Energy Corporation
InstitutionKBC Group NV
Latest Disclosed Ownership24,515 shares
Latest Disclosed Value $ 1,759
KBC Group NV ownership in AY1 / Alliant Energy Corporation

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 24,515 shares of Alliant Energy Corporation (DE:AY1) valued at $1,532,188 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 24,515 shares of Alliant Energy Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,483,893 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)
2026-05-07 2026-03-31 13F ALLIANT ENERGY COM 018802108 24,515 0 0.00 2 0.00 0.0044
2026-01-26 2025-12-31 13F ALLIANT ENERGY COM 018802108 24,515 0 0.00 2 0.00 0.0036
2026-01-20 2025-09-30 13F ALLIANT ENERGY COM 018802108 24,515 0 0.00 2 0.00 0.0040
2025-08-08 2025-06-30 13F ALLIANT ENERGY COM 018802108 24,515 8,053 48.92 1 0.00 0.0040
2025-04-25 2025-03-31 13F ALLIANT ENERGY COM 018802108 16,462 -5,435 -24.82 1 0.00 0.0033
2025-01-22 2024-12-31 13F ALLIANT ENERGY COM 018802108 21,897 3,069 16.30 1 0.00 0.0036
2024-11-06 2024-09-30 13F ALLIANT ENERGY COM 018802108 18,828 0 0.00 1 0.0035
2024-07-17 2024-06-30 13F ALLIANT ENERGY COM 018802108 18,828 0 0.00 1 0.0029
2024-05-08 2024-03-31 13F ALLIANT ENERGY COM 018802108 18,828 0 0.00 1 0.0030
2024-02-13 2023-12-31 13F ALLIANT ENERGY COM 018802108 18,828 7,092 60.43 1 0.0034
2024-02-15 2023-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 11,736 0 0.00 1 0.0023
2023-11-22 2023-09-30 13F ALLIANT ENERGY COM 018802108 11,736 0 1 0.0026
2024-02-15 2023-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 11,736 0 0.00 1 0.0025
2023-07-28 2023-06-30 13F ALLIANT ENERGY COM 018802108 11,736 0 1 0.0026
2024-02-14 2023-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 11,736 0 0.00 1 0.0027
2023-05-04 2023-03-31 13F ALLIANT ENERGY COM 018802108 11,736 0 1 0.0030
2024-02-14 2022-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 11,736 0 0.00 1 0.0031
2023-02-13 2022-12-31 13F ALLIANT ENERGY COM 018802108 11,736 0 1 0.0000
2024-02-15 2022-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 11,736 0 0.00 1 0.0032
2022-11-08 2022-09-30 13F ALLIANT ENERGY COM 018802108 11,736 0 622 0.0033
2024-02-14 2022-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 11,736 1,580 15.56 1 -100.00 0.0034
2022-07-26 2022-06-30 13F ALLIANT ENERGY COM 018802108 11,736 1,580 688 0.0035
2024-02-14 2022-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 10,156 -10,269 -50.28 1 -100.00 0.0025
2022-05-06 2022-03-31 13F ALLIANT ENERGY COM 018802108 10,156 -10,269 635 0.0023
2024-02-14 2021-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 20,425 -4,174 -16.97 1 -99.93 0.0041
2022-02-03 2021-12-31 13F ALLIANT ENERGY COM 018802108 20,425 -4,174 1,256 0.0039
2021-11-10 2021-09-30 13F ALLIANT ENERGY COM 018802108 24,599 0 0.00 1,377 0.36 0.0050
2022-02-15 2021-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 24,599 0 0.00 1,372 3.00 0.0049
2021-08-11 2021-06-30 13F ALLIANT ENERGY COM 018802108 24,599 0 1,372 0.0049
2022-02-14 2021-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 24,599 0 0.00 1,332 -89.49 0.0054
2021-04-26 2021-03-31 13F ALLIANT ENERGY COM 018802108 24,599 0 1,332 0.0054
2022-02-14 2020-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 24,599 0 0.00 12,676 897.32 0.0060
2021-02-10 2020-12-31 13F ALLIANT ENERGY COM 018802108 24,599 0 1,268 0.0058
2022-02-14 2020-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 24,599 -3,691 -13.05 1,271 -6.06 0.0075
2020-10-28 2020-09-30 13F ALLIANT ENERGY COM 018802108 24,599 -3,691 1,271 0.0075
2022-02-14 2020-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 28,290 -7,054 -19.96 1,353 -20.74 0.0089
2020-08-10 2020-06-30 13F ALLIANT ENERGY COM 018802108 28,290 -7,054 1,353 0.0091
2020-05-04 2020-03-31 13F ALLIANT ENERGY COM 018802108 35,344 5,589 18.78 1,707 4.85 0.0143
2020-02-11 2019-12-31 13F ALLIANT ENERGY COM 018802108 29,755 0 0.00 1,628 1.43 0.0103
2019-11-07 2019-09-30 13F ALLIANT ENERGY COM 018802108 29,755 0 0.00 1,605 9.93 0.0118
2019-08-08 2019-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 29,755 0 0.00 1,460 4.14 0.0113
2019-07-30 2019-06-30 13F ALLIANT ENERGY COM 018802108 29,755 0 1,460
2019-08-07 2019-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 29,755 9,794 49.07 1,402 66.31 0.0116
2019-05-10 2019-03-31 13F ALLIANT ENERGY COM 018802108 29,755 9,794 1,402
2019-01-31 2018-12-31 13F ALLIANT ENERGY COM 018802108 19,961 541 2.79 843 1.93 0.0094
2018-11-14 2018-09-30 13F ALLIANT ENERGY COM 018802108 19,420 -4,000 -17.08 827 -16.55 0.0063
2018-08-03 2018-06-30 13F ALLIANT ENERGY COM 018802108 23,420 4,000 20.60 991 24.81 0.0086
2018-08-03 2018-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 19,420 0 0.00 794 -3.99 0.0073
2018-05-09 2018-03-31 13F ALLIANT ENERGY COM 018802108 19,420 0 794
2018-08-03 2017-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 19,420 -8,469 -30.37 827 -28.65 0.0071
2018-02-07 2017-12-31 13F ALLIANT ENERGY COM 018802108 19,420 -8,469 827
2017-11-13 2017-09-30 13F ALLIANT ENERGY COM 018802108 27,889 6,361 29.55 1,159 33.99 0.0105
2017-08-04 2017-06-30 13F ALLIANT ENERGY COM 018802108 21,528 -22,255 -50.83 865 -50.12 0.0084
2017-05-10 2017-03-31 13F ALLIANT ENERGY COM 018802108 43,783 -4,828 -9.93 1,734 -5.86 0.0157
2017-02-16 2016-12-31 13F ALLIANT ENERGY COM 018802108 48,611 -4,951 -9.24 1,842 -10.23 0.0183
2016-11-03 2016-09-30 13F ALLIANT ENERGY COM 018802108 53,562 10,590 24.64 2,052 20.28 0.0242
2016-08-03 2016-06-30 13F ALLIANT ENERGY COM 018802108 42,972 21,486 100.00 1,706 6.89 0.0244
2016-05-11 2016-03-31 13F ALLIANT ENERGY COM 018802108 21,486 1,485 7.42 1,596 27.78 0.0265
2016-02-11 2015-12-31 13F ALLIANT ENERGY COM 018802108 20,001 -289 -1.42 1,249 5.22 0.0230
2015-11-12 2015-09-30 13F ALLIANT ENERGY COM 018802108 20,290 1,625 8.71 1,187 10.21 0.0239
2015-12-16 2015-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 18,665 8,241 79.06 1,077 63.93 0.0138
2015-07-31 2015-06-30 13F ALLIANT ENERGY COM 018802108 18,665 1,077
2015-12-16 2015-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 10,424 0 0.00 657 -5.06 0.0083
2015-04-30 2015-03-31 13F ALLIANT ENERGY COM 018802108 10,424 657
2015-12-15 2014-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 10,424 9,180 737.94 692 902.90 0.0082
2015-02-12 2014-12-31 13F ALLIANT ENERGY COM 018802108 10,424 692
2014-10-16 2014-09-30 13F ALLIANT ENERGY COM 018802108 1,244 -6,458 -83.85 69 -85.29 0.0024
2014-08-01 2014-06-30 13F ALLIANT ENERGY COM 018802108 7,702 -33 -0.43 469 6.83 0.0054
2014-04-30 2014-03-31 13F ALLIANT ENERGY COM 018802108 7,735 0 0.00 439 10.03 0.0069
2014-01-21 2013-12-31 13F ALLIANT ENERGY COM 018802108 7,735 -37,729 -82.99 399 -82.28 0.0060
2013-11-06 2013-09-30 13F ALLIANT ENERGY COM 018802108 45,464 7,291 19.10 2,252 16.99 0.0362
2013-07-29 2013-06-30 13F ALLIANT ENERGY COM 018802108 38,173 38,173 1,925 0.0357
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.