Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionStrs Ohio
Latest Disclosed Ownership6,143 shares
Latest Disclosed Value $ 440,822
Strs Ohio reports 0.16% decrease in ownership of LNT / Alliant Energy Corporation

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 6,143 shares of Alliant Energy Corporation (US:LNT) valued at $440,822 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 6,153 shares of Alliant Energy Corporation. This represents a change in shares of -0.16% during the quarter. The current value of the position is $434,863 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)
2026-04-24 2026-03-31 13F ALLIANT ENERGY COM_STK 018802108 6,143 -10 -0.16 441 10.00 0.0017
2026-02-02 2025-12-31 13F ALLIANT ENERGY COM_STK 018802108 6,153 11 0.18 400 -3.38 0.0015
2025-10-30 2025-09-30 13F ALLIANT ENERGY COM_STK 018802108 6,142 -37,990 -86.08 414 -84.48 0.0015
2025-08-04 2025-06-30 13F ALLIANT ENERGY COM_STK 018802108 44,132 8,494 23.83 2,669 16.35 0.0100
2025-05-28 2025-03-31 13F ALLIANT ENERGY COM_STK 018802108 35,638 -17,155 -32.49 2,293 -26.55 0.0096
2025-05-28 2024-12-31 13F ALLIANT ENERGY COM_STK 018802108 52,793 20,678 64.39 3,122 60.18 0.0124
2024-11-01 2024-09-30 13F ALLIANT ENERGY COM_STK 018802108 32,115 32,115 1,949 0.0075
2024-05-13 2024-03-31 13F ALLIANT ENERGY COM 018802108 0 -37,813 -100.00 0 -100.00
2024-01-30 2023-12-31 13F ALLIANT ENERGY COM 018802108 37,813 -3,401 -8.25 2 0.00 0.0081
2023-10-26 2023-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 41,214 8,644 26.54 2 0.00 0.0089
2023-10-26 2023-09-30 13F ALLIANT ENERGY COM 018802108 41,214 8,644 2 0.0089
2023-07-31 2023-06-30 13F ALLIANT ENERGY COM 018802108 32,570 -5,226 -13.83 2 -50.00 0.0072
2023-08-02 2023-03-31 13F/A-2 ALLIANT ENERGY COM 018802108 37,796 -5,376 -12.45 2 0.00 0.0087
2023-08-02 2023-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 37,796 -5,376 2 0.0087
2023-01-26 2022-12-31 13F ALLIANT ENERGY COM 018802108 43,172 -468 -1.07 2 -99.91 0.0108
2022-10-27 2022-09-30 13F ALLIANT ENERGY COM 018802108 43,640 473 1.10 2,312 -8.62 0.0110
2022-07-25 2022-06-30 13F ALLIANT ENERGY COM 018802108 43,167 -12,766 -22.82 2,530 -27.59 0.0114
2022-04-21 2022-03-31 13F ALLIANT ENERGY COM 018802108 55,933 2,123 3.95 3,494 5.65 0.0128
2022-01-24 2021-12-31 13F ALLIANT ENERGY COM 018802108 53,810 41,657 342.77 3,307 386.32 0.0115
2021-10-22 2021-09-30 13F ALLIANT ENERGY COM 018802108 12,153 -2,866 -19.08 680 -18.76 0.0026
2021-07-26 2021-06-30 13F ALLIANT ENERGY COM 018802108 15,019 -6,834 -31.27 837 -29.25 0.0030
2021-04-23 2021-03-31 13F ALLIANT ENERGY COM 018802108 21,853 -37,626 -63.26 1,183 -61.39 0.0045
2021-01-25 2020-12-31 13F ALLIANT ENERGY COM 018802108 59,479 -88,501 -59.81 3,064 -59.91 0.0118
2020-12-14 2020-09-30 13F ALLIANT ENERGY COM 018802108 147,980 -11,284 -7.09 7,643 0.32 0.0320
2020-07-23 2020-06-30 13F ALLIANT ENERGY COM 018802108 159,264 26,669 20.11 7,619 18.99 0.0333
2020-04-23 2020-03-31 13F ALLIANT ENERGY COM 018802108 132,595 92,233 228.51 6,403 189.99 0.0337
2020-01-24 2019-12-31 13F ALLIANT ENERGY COM 018802108 40,362 3,178 8.55 2,208 10.12 0.0092
2019-10-21 2019-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 37,184 2,147 6.13 2,005 16.64 0.0088
2019-10-21 2019-09-30 13F ALLIANT ENERGY COM 018802108 37,184 -3,178 2,005 8,874.2412
2019-07-25 2019-06-30 13F ALLIANT ENERGY COM 018802108 35,037 -6,785 -16.22 1,719 -12.79 0.0076
2019-04-19 2019-03-31 13F ALLIANT ENERGY COM 018802108 41,822 -13,478 -24.37 1,971 -15.62 0.0089
2019-01-23 2018-12-31 13F ALLIANT ENERGY COM 018802108 55,300 882 1.62 2,336 0.86 0.0119
2018-10-19 2018-09-30 13F ALLIANT ENERGY COM 018802108 54,418 895 1.67 2,316 2.25 0.0102
2018-08-06 2018-06-30 13F ALLIANT ENERGY COM 018802108 53,523 -13,779 -20.47 2,265 -17.61 0.0097
2018-04-20 2018-03-31 13F ALLIANT ENERGY COM 018802108 67,302 12,623 23.09 2,749 18.03 0.0122
2018-01-23 2017-12-31 13F ALLIANT ENERGY COM 018802108 54,679 7,364 15.56 2,329 18.46 0.0100
2017-10-23 2017-09-30 13F ALLIANT ENERGY COM 018802108 47,315 930 2.00 1,966 5.53 0.0084
2017-07-26 2017-06-30 13F ALLIANT ENERGY COM 018802108 46,385 3,440 8.01 1,863 9.52 0.0083
2017-04-26 2017-03-31 13F ALLIANT ENERGY COM 018802108 42,945 6,340 17.32 1,701 22.73 0.0074
2017-01-24 2016-12-31 13F ALLIANT ENERGY COM 018802108 36,605 7,127 24.18 1,386 22.76 0.0061
2016-10-27 2016-09-30 13F ALLIANT ENERGY COM 018802108 29,478 1,255 4.45 1,129 0.80 0.0050
2016-07-26 2016-06-30 13F ALLIANT ENERGY COM 018802108 28,223 18,764 198.37 1,120 59.54 0.0050
2016-04-25 2016-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 9,459 7,947 525.60 702 646.81 0.0032
2016-01-28 2015-12-31 13F ALLIANT ENERGY COM 018802108 1,512 -737 -32.77 94 -28.24 0.0004
2015-10-21 2015-09-30 13F ALLIANT ENERGY COM 018802108 2,249 2,249 0.00 131 0.0006
2015-04-21 2015-03-31 13F ALLIANT ENERGY COM 018802108 0 -9,851 -100.00 0 -100.00
2015-01-23 2014-12-31 13F ALLIANT ENERGY COM 018802108 9,851 0 0.00 654 19.78 0.0028
2014-10-29 2014-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 9,851 0 0.00 546 -9.00 0.0024
2014-07-24 2014-06-30 13F ALLIANT ENERGY COM 018802108 9,851 0 0.00 600 7.14 0.0027
2014-04-28 2014-03-31 13F ALLIANT ENERGY COM 018802108 9,851 0 0.00 560 10.24 0.0025
2014-01-30 2013-12-31 13F ALLIANT ENERGY COM 018802108 9,851 -151,000 -93.88 508 -93.63 0.0023
2013-10-24 2013-09-30 13F ALLIANT ENERGY COM 018802108 160,851 -877,149 -84.50 7,970 -84.77 0.0351
2013-08-12 2013-06-30 13F ALLIANT ENERGY COM 018802108 1,038,000 1,038,000 52,336 0.2250
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.