Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionFiduciary Trust Co
Latest Disclosed Ownership13,576 shares
Latest Disclosed Value $ 974,215
Fiduciary Trust Co reports 0.32% increase in ownership of LNT / Alliant Energy Corporation

On May 15, 2026 - Fiduciary Trust Co filed a 13F-HR form disclosing ownership of 13,576 shares of Alliant Energy Corporation (US:LNT) valued at $974,214 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,533 shares of Alliant Energy Corporation. This represents a change in shares of 0.32% during the quarter. The current value of the position is $961,045 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)
2026-05-15 2026-03-31 13F ALLIANT ENERGY COM 018802108 13,576 43 0.32 974 10.81 0.0067
2026-02-13 2025-12-31 13F ALLIANT ENERGY COM 018802108 13,533 37 0.27 880 -3.30 0.0100
2025-11-14 2025-09-30 13F ALLIANT ENERGY COM 018802108 13,496 30 0.22 910 11.67 0.0103
2025-08-14 2025-06-30 13F ALLIANT ENERGY COM 018802108 13,466 166 1.25 814 -4.80 0.0100
2025-05-15 2025-03-31 13F ALLIANT ENERGY COM 018802108 13,300 -267 -1.97 856 6.61 0.0112
2025-02-14 2024-12-31 13F ALLIANT ENERGY COM 018802108 13,567 53 0.39 802 -2.20 0.0106
2024-11-14 2024-09-30 13F ALLIANT ENERGY COM 018802108 13,514 112 0.84 820 20.23 0.0115
2024-08-14 2024-06-30 13F ALLIANT ENERGY COM 018802108 13,402 223 1.69 682 2.71 0.0102
2024-05-14 2024-03-31 13F ALLIANT ENERGY COM 018802108 13,179 0 0.00 664 -1.78 0.0102
2024-02-12 2023-12-31 13F ALLIANT ENERGY COM 018802108 13,179 -6 -0.05 676 5.96 0.0113
2023-11-14 2023-09-30 13F ALLIANT ENERGY COM 018802108 13,185 -36 -0.27 639 -7.94 0.0117
2023-08-01 2023-06-30 13F ALLIANT ENERGY COM 018802108 13,221 175 1.34 694 -0.43 0.0122
2023-05-15 2023-03-31 13F ALLIANT ENERGY COM 018802108 13,046 230 1.79 697 -1.56 0.0129
2023-02-14 2022-12-31 13F ALLIANT ENERGY COM 018802108 12,816 37 0.29 708 4.43 0.0138
2022-11-14 2022-09-30 13F ALLIANT ENERGY COM 018802108 12,779 -1 -0.01 677 -9.61 0.0146
2022-08-12 2022-06-30 13F ALLIANT ENERGY COM 018802108 12,780 -7 -0.05 749 -6.26 0.0158
2022-05-12 2022-03-31 13F ALLIANT ENERGY COM 018802108 12,787 0 0.00 799 1.65 0.0143
2022-02-14 2021-12-31 13F ALLIANT ENERGY COM 018802108 12,787 -12,960 -50.34 786 -45.45 0.0129
2021-11-12 2021-09-30 13F ALLIANT ENERGY COM 018802108 25,747 -1 -0.00 1,441 0.42 0.0256
2021-08-16 2021-06-30 13F ALLIANT ENERGY COM 018802108 25,748 0 0.00 1,435 2.94 0.0278
2021-05-19 2021-03-31 13F ALLIANT ENERGY COM 018802108 25,748 699 2.79 1,394 7.98 0.0283
2021-01-26 2020-12-31 13F ALLIANT ENERGY COM 018802108 25,049 25,049 1,291 0.0269
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.