Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionAllworth Financial LP
Latest Disclosed Ownership3,667 shares
Latest Disclosed Value $ 263,176
Allworth Financial LP reports 12.69% increase in ownership of LNT / Alliant Energy Corporation

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 3,667 shares of Alliant Energy Corporation (US:LNT) valued at $263,144 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 3,254 shares of Alliant Energy Corporation. This represents a change in shares of 12.69% during the quarter. The current value of the position is $259,587 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)
2026-05-14 2026-03-31 13F ALLIANT ENERGY COM 018802108 3,667 413 12.69 263 24.64 0.0011
2026-02-05 2025-12-31 13F ALLIANT ENERGY COM 018802108 3,254 32 0.99 212 -2.76 0.0009
2025-12-02 2025-09-30 13F ALLIANT ENERGY COM 018802108 3,222 504 18.54 217 32.32 0.0010
2025-08-07 2025-06-30 13F ALLIANT ENERGY COM 018802108 2,718 2,209 433.99 164 429.03 0.0008
2025-04-30 2025-03-31 13F ALLIANT ENERGY COM 018802108 509 48 10.41 31 14.81 0.0002
2025-01-30 2024-12-31 13F ALLIANT ENERGY COM 018802108 461 -546 -54.22 27 -55.74 0.0001
2024-10-23 2024-09-30 13F ALLIANT ENERGY COM 018802108 1,007 41 4.24 61 17.31 0.0004
2024-07-24 2024-06-30 13F ALLIANT ENERGY COM 018802108 966 -239 -19.83 53 -13.33 0.0003
2024-04-25 2024-03-31 13F ALLIANT ENERGY COM 018802108 1,205 -41 -3.29 61 -4.76 0.0004
2024-01-24 2023-12-31 13F ALLIANT ENERGY COM 018802108 1,246 185 17.44 64 23.53 0.0005
2023-10-31 2023-09-30 13F ALLIANT ENERGY COM 018802108 1,061 -504 -32.20 51 -37.80 0.0004
2023-07-18 2023-06-30 13F ALLIANT ENERGY COM 018802108 1,565 -49 -3.04 82 -4.65 0.0007
2023-04-18 2023-03-31 13F ALLIANT ENERGY COM 018802108 1,614 163 11.23 86 7.50 0.0009
2023-01-13 2022-12-31 13F ALLIANT ENERGY COM 018802108 1,451 530 57.55 80 63.27 0.0009
2022-11-14 2022-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 921 63 7.34 49 -2.00 0.0006
2022-10-18 2022-09-30 13F ALLIANT ENERGY COM 018802108 921 63 49 0.0006
2022-07-13 2022-06-30 13F ALLIANT ENERGY COM 018802108 858 0 0.00 50 -7.41 0.0007
2022-04-22 2022-03-31 13F ALLIANT ENERGY COM 018802108 858 -8 -0.92 54 1.89 0.0007
2022-01-21 2021-12-31 13F ALLIANT ENERGY COM 018802108 866 8 0.93 53 10.42 0.0008
2021-11-02 2021-09-30 13F ALLIANT ENERGY COM 018802108 858 304 54.87 48 54.84 0.0008
2021-08-02 2021-06-30 13F ALLIANT ENERGY COM 018802108 554 -103 -15.68 31 -13.89 0.0006
2021-04-29 2021-03-31 13F ALLIANT ENERGY COM 018802108 657 0 0.00 36 5.88 0.0007
2021-01-26 2020-12-31 13F ALLIANT ENERGY COM 018802108 657 0 0.00 34 0.00 0.0009
2020-11-03 2020-09-30 13F ALLIANT ENERGY COM 018802108 657 -333 -33.64 34 -27.66 0.0010
2020-07-24 2020-06-30 13F ALLIANT ENERGY COM 018802108 990 333 50.68 47 46.88 0.0014
2020-04-17 2020-03-31 13F ALLIANT ENERGY COM 018802108 657 0 0.00 32 -11.11 0.0011
2020-01-16 2019-12-31 13F ALLIANT ENERGY COM 018802108 657 1 0.15 36 2.86 0.0013
2019-10-09 2019-09-30 13F ALLIANT ENERGY COM 018802108 656 0 0.00 35 9.38 0.0013
2019-07-25 2019-06-30 13F ALLIANT ENERGY COM 018802108 656 1 0.15 32 3.23 0.0012
2019-05-07 2019-03-31 13F ALLIANT ENERGY COM 018802108 655 1 0.15 31 10.71 0.0013
2019-02-11 2018-12-31 13F ALLIANT ENERGY COM 018802108 654 0 0.00 28 0.00 0.0014
2018-10-29 2018-09-30 13F ALLIANT ENERGY COM 018802108 654 0 0.00 28 0.00 0.0013
2018-08-08 2018-06-30 13F ALLIANT ENERGY COM 018802108 654 -4 -0.61 28 3.70 0.0013
2018-05-01 2018-03-31 13F ALLIANT ENERGY COM 018802108 658 -4 -0.60 27 -3.57 0.0021
2018-02-21 2017-12-31 13F ALLIANT ENERGY COM 018802108 662 8 1.22 28 3.70 0.0022
2017-10-12 2017-09-30 13F ALLIANT ENERGY COM 018802108 654 0 0.00 27 3.85 0.0022
2017-08-07 2017-06-30 13F ALLIANT ENERGY COM 018802108 654 0 0.00 26 0.00 0.0023
2017-05-09 2017-03-31 13F ALLIANT ENERGY COM 018802108 654 0 0.00 26 4.00 0.0024
2017-02-02 2016-12-31 13F ALLIANT ENERGY COM 018802108 654 0 0.00 25 0.00 0.0025
2017-02-07 2016-09-30 13F ALLIANT ENERGY COM 018802108 654 100 18.05 25 13.64 0.0026
2016-08-22 2016-06-30 13F ALLIANT ENERGY COM 018802108 554 554 0.00 22 0.0025
2015-10-30 2015-09-30 13F ALLIANT ENERGY COM 018802108 0 0 0 0.0000
2015-08-06 2015-06-30 13F ALLIANT ENERGY COM 018802108 0 -554 -100.00 0 -100.00
2015-06-01 2015-03-31 13F ALLIANT ENERGY COM 018802108 554 554 35 0.0130
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.