Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionBailard, Inc.
Latest Disclosed Ownership5,702 shares
Latest Disclosed Value $ 409,176
Bailard, Inc. reports 0.14% increase in ownership of LNT / Alliant Energy Corporation

On May 11, 2026 - Bailard, Inc. filed a 13F-HR form disclosing ownership of 5,702 shares of Alliant Energy Corporation (US:LNT) valued at $409,176 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 5,694 shares of Alliant Energy Corporation. This represents a change in shares of 0.14% during the quarter. The current value of the position is $403,645 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)
2026-05-11 2026-03-31 13F ALLIANT ENERGY COM 018802108 5,702 8 0.14 409 10.54 0.0094
2026-02-04 2025-12-31 13F ALLIANT ENERGY COM 018802108 5,694 446 8.50 370 4.82 0.0082
2025-10-30 2025-09-30 13F ALLIANT ENERGY COM 018802108 5,248 0 0.00 354 11.36 0.0077
2025-08-08 2025-06-30 13F ALLIANT ENERGY COM 018802108 5,248 0 0.00 317 -5.93 0.0074
2025-05-02 2025-03-31 13F ALLIANT ENERGY COM 018802108 5,248 -405 -7.16 338 0.90 0.0087
2025-02-05 2024-12-31 13F ALLIANT ENERGY COM 018802108 5,653 -74 -1.29 334 -3.75 0.0085
2024-10-30 2024-09-30 13F ALLIANT ENERGY COM 018802108 5,727 -788 -12.10 348 4.83 0.0090
2024-07-25 2024-06-30 13F ALLIANT ENERGY COM 018802108 6,515 1,003 18.20 332 19.49 0.0091
2024-05-08 2024-03-31 13F ALLIANT ENERGY COM 018802108 5,512 5,512 278 0.0077
2024-02-02 2023-12-31 13F ALLIANT ENERGY COM 018802108 0 -6,052 -100.00 0 -100.00
2023-10-24 2023-09-30 13F ALLIANT ENERGY COM 018802108 6,052 6,052 293 0.0097
2023-07-20 2023-06-30 13F ALLIANT ENERGY COM 018802108 0 -3,909 -100.00 0 -100.00
2023-05-08 2023-03-31 13F ALLIANT ENERGY COM 018802108 3,909 -1,493 -27.64 209 -30.20 0.0075
2023-02-02 2022-12-31 13F ALLIANT ENERGY COM 018802108 5,402 715 15.25 298 20.16 0.0114
2022-10-18 2022-09-30 13F ALLIANT ENERGY COM 018802108 4,687 0 0.00 248 -9.82 0.0103
2022-07-27 2022-06-30 13F ALLIANT ENERGY COM 018802108 4,687 -785 -14.35 275 -19.59 0.0108
2022-04-25 2022-03-31 13F ALLIANT ENERGY COM 018802108 5,472 -600 -9.88 342 -8.31 0.0115
2022-02-10 2021-12-31 13F ALLIANT ENERGY COM 018802108 6,072 -270 -4.26 373 5.07 0.0119
2021-11-15 2021-09-30 13F ALLIANT ENERGY COM 018802108 6,342 -34 -0.53 355 -0.28 0.0121
2021-08-13 2021-06-30 13F ALLIANT ENERGY COM 018802108 6,376 0 0.00 356 3.19 0.0123
2021-05-13 2021-03-31 13F ALLIANT ENERGY COM 018802108 6,376 1,289 25.34 345 31.68 0.0128
2021-02-03 2020-12-31 13F ALLIANT ENERGY COM 018802108 5,087 -2,323 -31.35 262 -31.59 0.0119
2020-11-10 2020-09-30 13F ALLIANT ENERGY COM 018802108 7,410 0 0.00 383 8.19 0.0198
2020-08-12 2020-06-30 13F ALLIANT ENERGY COM 018802108 7,410 -250 -3.26 354 -4.32 0.0198
2020-04-16 2020-03-31 13F ALLIANT ENERGY COM 018802108 7,660 2,066 36.93 370 20.92 0.0263
2020-01-31 2019-12-31 13F ALLIANT ENERGY COM 018802108 5,594 0 0.00 306 1.32 0.0172
2019-10-18 2019-09-30 13F ALLIANT ENERGY COM 018802108 5,594 0 0.00 302 9.82 0.0183
2019-07-26 2019-06-30 13F ALLIANT ENERGY COM 018802108 5,594 5,594 275 0.0168
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.