Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionPrudential Financial Inc
Latest Disclosed Ownership123,935 shares
Latest Disclosed Value $ 8,893,576
Prudential Financial Inc reports 2.92% decrease in ownership of LNT / Alliant Energy Corporation

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 123,935 shares of Alliant Energy Corporation (US:LNT) valued at $8,893,576 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 127,664 shares of Alliant Energy Corporation. This represents a change in shares of -2.92% during the quarter. The current value of the position is $8,773,359 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F ALLIANT ENERGY COM 018802108 123,935 -3,729 -2.92 8,894 7.16 0.0110
2026-02-13 2025-12-31 13F ALLIANT ENERGY COM 018802108 127,664 -17,314 -11.94 8,299 -15.07 0.0100
2025-11-13 2025-09-30 13F ALLIANT ENERGY COM 018802108 144,978 -147,193 -50.38 9,773 -44.69 0.0116
2025-08-12 2025-06-30 13F ALLIANT ENERGY COM 018802108 292,171 123,283 73.00 17,668 62.57 0.0228
2025-05-13 2025-03-31 13F ALLIANT ENERGY COM 018802108 168,888 32,504 23.83 10,868 34.74 0.0155
2025-02-11 2024-12-31 13F ALLIANT ENERGY COM 018802108 136,384 -21,584 -13.66 8,066 -15.88 0.0111
2024-11-14 2024-09-30 13F ALLIANT ENERGY COM 018802108 157,968 -697 -0.44 9,587 18.71 0.0135
2024-08-13 2024-06-30 13F ALLIANT ENERGY COM 018802108 158,665 -17,596 -9.98 8,076 -9.08 0.0121
2024-05-14 2024-03-31 13F ALLIANT ENERGY COM 018802108 176,261 -4,370 -2.42 8,884 -3.79 0.0125
2024-02-13 2023-12-31 13F ALLIANT ENERGY COM 018802108 180,631 -38,564 -17.59 9,233 -13.06 0.0139
2023-11-13 2023-09-30 13F ALLIANT ENERGY COM 018802108 219,195 -1,513 -0.69 10,620 -8.31 0.0167
2023-08-11 2023-06-30 13F ALLIANT ENERGY COM 018802108 220,708 -1,223 -0.55 11,583 -9.52 0.0169
2023-05-12 2023-03-31 13F ALLIANT ENERGY COM 018802108 221,931 6,940 3.23 12,800 7.84 0.0200
2023-02-14 2022-12-31 13F ALLIANT ENERGY COM 018802108 214,991 2,966 1.40 11,870 3.75 0.0200
2022-11-04 2022-09-30 13F ALLIANT ENERGY COM 018802108 212,025 -965 -0.45 11,440 -7.73 0.0194
2022-08-15 2022-06-30 13F ALLIANT ENERGY COM 018802108 212,990 -2,029 -0.94 12,399 -7.70 0.0197
2022-05-13 2022-03-31 13F ALLIANT ENERGY COM 018802108 215,019 -2,980 -1.37 13,434 6.70 0.0179
2022-02-14 2021-12-31 13F ALLIANT ENERGY COM 018802108 217,999 6,390 3.02 12,591 4.18 0.0156
2021-11-15 2021-09-30 13F ALLIANT ENERGY COM 018802108 211,609 -1,680 -0.79 12,086 1.62 0.0169
2021-08-16 2021-06-30 13F ALLIANT ENERGY COM 018802108 213,289 -10,975 -4.89 11,893 -2.08 0.0164
2021-05-12 2021-03-31 13F ALLIANT ENERGY COM 018802108 224,264 33,839 17.77 12,146 23.80 0.0182
2021-08-16 2020-12-31 13F/A-1 ALLIANT ENERGY COM 0051 018802108 190,425 190,420 3,808,400.00 9,811 0.0165
2021-02-16 2020-12-31 13F ALLIANT ENERGY COM 018802108 190,425 190,420 9,812 0.0165
2021-08-05 2020-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 5 0 0.00 0 0.0000
2020-11-16 2020-09-30 13F ALLIANT ENERGY COM 018802108 191,920 191,915 9,912 0.0187
2021-08-05 2020-06-30 13F/A-1 ALLIANT ENERGY COM 0047 018802108 5 -229,554 -100.00 0 -100.00
2020-08-12 2020-06-30 13F ALLIANT ENERGY COM 018802108 192,840 -36,719 9,226 0.0178
2020-05-12 2020-03-31 13F ALLIANT ENERGY COM 018802108 229,559 480 0.21 11,086 -11.56 0.0246
2020-02-11 2019-12-31 13F ALLIANT ENERGY COM 018802108 229,079 14,220 6.62 12,535 8.18 0.0186
2019-11-13 2019-09-30 13F ALLIANT ENERGY COM 018802108 214,859 -510 -0.24 11,587 9.62 0.0184
2019-08-08 2019-06-30 13F ALLIANT ENERGY COM 018802108 215,369 -120 -0.06 10,570 4.08 0.0165
2019-05-15 2019-03-31 13F ALLIANT ENERGY COM 018802108 215,489 -38,490 -15.15 10,156 -5.35 0.0169
2019-02-07 2018-12-31 13F ALLIANT ENERGY COM 018802108 253,979 -4,670 -1.81 10,730 -2.55 0.0188
2018-11-07 2018-09-30 13F ALLIANT ENERGY COM 018802108 258,649 -2,330 -0.89 11,011 -0.30 0.0162
2018-08-13 2018-06-30 13F ALLIANT ENERGY COM 018802108 260,979 710 0.27 11,044 3.85 0.0165
2018-05-04 2018-03-31 13F ALLIANT ENERGY COM 018802108 260,269 -61,670 -19.16 10,635 -22.47 0.0162
2018-02-13 2017-12-31 13F ALLIANT ENERGY COM 018802108 321,939 3,470 1.09 13,718 3.62 0.0187
2017-11-30 2017-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 318,469 1,380 0.44 13,239 3.94 0.1445
2017-08-07 2017-06-30 13F ALLIANT ENERGY COM 018802108 317,089 -430 -0.14 12,737 1.27 0.0189
2017-05-10 2017-03-31 13F ALLIANT ENERGY COM 018802108 317,519 12,000 3.93 12,577 8.65 0.0196
2017-02-07 2016-12-31 13F ALLIANT ENERGY COM 018802108 305,519 -2,500 -0.81 11,576 -1.91 0.0186
2016-11-04 2016-09-30 13F ALLIANT ENERGY COM 018802108 308,019 179,319 139.33 11,801 130.98 0.0195
2016-08-09 2016-06-30 13F ALLIANT ENERGY COM 018802108 128,700 60,779 89.48 5,109 1.27 0.0086
2016-05-09 2016-03-31 13F ALLIANT ENERGY COM 018802108 67,921 -226,800 -76.95 5,045 -72.59 0.0090
2016-02-12 2015-12-31 13F ALLIANT ENERGY COM 018802108 294,721 33,140 12.67 18,405 20.29 0.0333
2015-11-10 2015-09-30 13F ALLIANT ENERGY COM 018802108 261,581 147,700 129.70 15,300 132.77 0.0302
2015-08-06 2015-06-30 13F ALLIANT ENERGY COM 018802108 113,881 34,960 44.30 6,573 32.20 0.0117
2015-05-01 2015-03-31 13F ALLIANT ENERGY COM 018802108 78,921 -48,400 -38.01 4,972 -41.21 0.0086
2015-02-06 2014-12-31 13F ALLIANT ENERGY COM 018802108 127,321 -24,064 -15.90 8,457 0.82 0.0153
2014-11-12 2014-09-30 13F ALLIANT ENERGY COM 018802108 151,385 -154,578 -50.52 8,388 -54.95 0.0158
2014-08-13 2014-06-30 13F ALLIANT ENERGY COM 018802108 305,963 -8,622 -2.74 18,621 4.19 0.0328
2014-05-14 2014-03-31 13F ALLIANT ENERGY COM 018802108 314,585 7,200 2.34 17,872 12.68 0.0333
2014-02-11 2013-12-31 13F ALLIANT ENERGY COM 018802108 307,385 61,400 24.96 15,861 30.13 0.0315
2013-11-07 2013-09-30 13F ALLIANT ENERGY COM 018802108 245,985 -119,789 -32.75 12,189 -33.91 0.0259
2013-08-07 2013-06-30 13F ALLIANT ENERGY COM 018802108 365,774 365,774 18,442 0.0409
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.