Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionFirst Merchants Corp
Latest Disclosed Ownership16,321 shares
Latest Disclosed Value $ 1,171,195
First Merchants Corp reports 17.55% decrease in ownership of LNT / Alliant Energy Corporation

On April 16, 2026 - First Merchants Corp filed a 13F-HR form disclosing ownership of 16,321 shares of Alliant Energy Corporation (US:LNT) valued at $1,171,195 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 19,796 shares of Alliant Energy Corporation. This represents a change in shares of -17.55% during the quarter. The current value of the position is $1,155,364 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)
2026-04-16 2026-03-31 13F ALLIANT Equities 018802108 16,321 -3,475 -17.55 1,171 -8.94 0.0435
2026-01-12 2025-12-31 13F ALLIANT Equities 018802108 19,796 -320 -1.59 1,287 -5.16 0.0477
2025-10-22 2025-09-30 13F ALLIANT Equities 018802108 20,116 -500 -2.43 1,356 8.83 0.0511
2025-07-23 2025-06-30 13F ALLIANT Equities 018802108 20,616 -156 -0.75 1,247 -6.74 0.0482
2025-04-24 2025-03-31 13F ALLIANT Equities 018802108 20,772 -800 -3.71 1,337 4.78 0.0533
2025-01-30 2024-12-31 13F ALLIANT Equities 018802108 21,572 -50,885 -70.23 1,276 -71.00 0.0490
2024-10-24 2024-09-30 13F ALLIANT Equities 018802108 72,457 -81 -0.11 4,397 19.10 0.1679
2024-07-25 2024-06-30 13F ALLIANT Equities 018802108 72,538 -1,940 -2.60 3,692 -1.63 0.1486
2024-04-25 2024-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 74,478 373 0.50 3,754 -1.24 0.2823
2024-01-25 2023-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 74,105 5,245 7.62 3,801 13.91 0.3114
2023-10-26 2023-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 68,860 1,706 2.54 3,336 -5.31 0.2973
2023-07-25 2023-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 67,154 2,263 3.49 3,523 1.67 0.2980
2023-04-25 2023-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 64,891 -190 -0.29 3,465 -3.54 0.3086
2023-01-26 2022-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 65,081 10,293 18.79 3,592 23.73 0.3291
2022-10-25 2022-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 54,788 528 0.97 2,903 -8.71 0.2907
2022-07-26 2022-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 54,260 -1,101 -1.99 3,180 -8.04 0.3142
2022-04-26 2022-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 55,361 184 0.33 3,458 1.95 0.2830
2022-01-27 2021-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 55,177 -480 -0.86 3,392 8.89 0.2619
2021-10-26 2021-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 55,657 -581 -1.03 3,115 -0.64 0.1983
2021-07-26 2021-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 56,238 -2,926 -4.95 3,135 -2.12 0.2038
2021-04-22 2021-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 59,164 -3,024 -4.86 3,203 -0.03 0.2134
2021-01-28 2020-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 62,188 -1,953 -3.04 3,204 -3.29 0.2207
2020-10-28 2020-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 64,141 -31,329 -32.82 3,313 -27.46 0.2524
2020-07-23 2020-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 95,470 2,847 3.07 4,567 2.10 0.3853
2020-04-23 2020-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 92,623 -462 -0.50 4,473 -12.19 0.5789
2020-01-30 2019-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 93,085 -3,454 -3.58 5,094 -2.15 0.5215
2019-10-24 2019-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 96,539 3,341 3.58 5,206 13.79 0.5533
2019-07-25 2019-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 93,198 -14,616 -13.56 4,575 -9.96 0.7279
2019-04-25 2019-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 107,814 19,435 21.99 5,081 36.07 0.8204
2019-01-31 2018-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 88,379 7,931 9.86 3,734 9.05 0.7166
2018-10-24 2018-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 80,448 -287 -0.36 3,424 0.23 0.5613
2018-07-26 2018-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 80,735 -125 -0.15 3,416 3.39 0.5944
2018-04-26 2018-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 80,860 -4,236 -4.98 3,304 -8.88 0.5547
2018-01-30 2017-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 85,096 -15,108 -15.08 3,626 -12.92 0.6181
2017-10-31 2017-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 100,204 -178 -0.18 4,164 3.30 0.7193
2017-07-27 2017-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 100,382 -1,283 -1.26 4,031 0.10 1.1137
2017-04-27 2017-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 101,665 2,059 2.07 4,027 6.73 1.1218
2017-01-26 2016-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 99,606 2,620 2.70 3,773 1.56 1.1175
2016-10-25 2016-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 96,986 -92 -0.09 3,715 -3.61 1.1910
2016-07-26 2016-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 97,078 51,753 114.18 3,854 14.50 1.2706
2016-04-26 2016-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 45,325 -1,425 -3.05 3,366 15.27 1.1925
2016-02-01 2015-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 46,750 -126 -0.27 2,920 6.49 1.0297
2015-10-22 2015-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 46,876 165 0.35 2,742 1.71 0.9791
2015-07-23 2015-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 46,711 1,063 2.33 2,696 -6.26 0.8421
2015-04-27 2015-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 45,648 45,648 0.00 2,876 0.8876
2015-01-27 2014-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 0 -45,901 -100.00 0 -100.00
2014-10-23 2014-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 45,901 -7,302 -13.72 2,543 -21.46 0.8125
2014-07-24 2014-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 53,203 2,820 5.60 3,238 13.14 1.0091
2014-04-29 2014-03-31 13F ALLIANT CORP COM COMMON STOCK 018802108 50,383 4,351 9.45 2,862 20.51 0.9231
2014-01-31 2013-12-31 13F ALLIANT CORP COM COMMON STOCK 018802108 46,032 6,557 16.61 2,375 21.42 0.7800
2013-10-25 2013-09-30 13F ALLIANT CORP COM COMMON STOCK 018802108 39,475 -10,230 -20.58 1,956 -21.95 0.6630
2013-07-23 2013-06-30 13F ALLIANT CORP COM COMMON STOCK 018802108 49,705 49,705 2,506 0.8897
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.