Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionAviva Plc
Latest Disclosed Ownership4,250 shares
Latest Disclosed Value $ 304,980
Aviva Plc ownership in LNT / Alliant Energy Corporation

On May 14, 2026 - Aviva Plc filed a 13F-HR form disclosing ownership of 4,250 shares of Alliant Energy Corporation (US:LNT) valued at $304,980 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,250 shares of Alliant Energy Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $300,858 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)
2026-05-14 2026-03-31 13F ALLIANT ENERGY COM 018802108 4,250 0 0.00 305 10.14 0.0005
2026-02-12 2025-12-31 13F ALLIANT ENERGY COM 018802108 4,250 0 0.00 276 -3.50 0.0005
2025-11-13 2025-09-30 13F ALLIANT ENERGY COM 018802108 4,250 0 0.00 286 11.72 0.0005
2025-08-07 2025-06-30 13F ALLIANT ENERGY COM 018802108 4,250 0 0.00 257 -6.23 0.0005
2025-05-15 2025-03-31 13F ALLIANT ENERGY COM 018802108 4,250 0 0.00 273 8.76 0.0007
2025-02-13 2024-12-31 13F ALLIANT ENERGY COM 018802108 4,250 0 0.00 251 -2.33 0.0007
2024-11-14 2024-09-30 13F ALLIANT ENERGY COM 018802108 4,250 4,250 258 0.0007
2023-11-13 2023-09-30 13F ALLIANT ENERGY COM 018802108 0 -3,850 -100.00 0 -100.00
2023-08-10 2023-06-30 13F ALLIANT ENERGY COM 018802108 3,850 0 0.00 202 -1.46 0.0008
2023-05-12 2023-03-31 13F ALLIANT ENERGY COM 018802108 3,850 0 0.00 206 -3.30 0.0009
2023-02-14 2022-12-31 13F/A-2 ALLIANT ENERGY COM 018802108 3,850 0 0.00 213 3.92 0.0010
2023-02-10 2022-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 3,850 0 213 0.0010
2023-02-09 2022-12-31 13F ALLIANT ENERGY COM 018802108 3,850 0 0 0.0010
2022-11-14 2022-09-30 13F ALLIANT ENERGY COM 018802108 3,850 -31,551 -89.12 204 -90.17 0.0012
2022-08-04 2022-06-30 13F ALLIANT ENERGY COM 018802108 35,401 -11,165 -23.98 2,075 -28.67 0.0110
2022-05-13 2022-03-31 13F ALLIANT ENERGY COM 018802108 46,566 -28,316 -37.81 2,909 -36.80 0.0145
2022-02-10 2021-12-31 13F ALLIANT ENERGY COM 018802108 74,882 -1,777 -2.32 4,603 7.27 0.0193
2021-11-12 2021-09-30 13F ALLIANT ENERGY COM 018802108 76,659 -4,273 -5.28 4,291 -4.92 0.0191
2021-08-10 2021-06-30 13F ALLIANT ENERGY COM 018802108 80,932 -4,327 -5.08 4,513 -2.27 0.0198
2021-05-13 2021-03-31 13F ALLIANT ENERGY COM 018802108 85,259 -29,835 -25.92 4,618 -22.14 0.0226
2021-02-10 2020-12-31 13F ALLIANT ENERGY COM 018802108 115,094 9,197 8.68 5,931 8.43 0.0308
2020-11-12 2020-09-30 13F ALLIANT ENERGY COM 018802108 105,897 -2,550 -2.35 5,470 5.44 0.0323
2020-08-13 2020-06-30 13F/A-1 ALLIANT ENERGY COM 018802108 108,447 -10,260 -8.64 5,188 -9.49 0.0323
2020-08-13 2020-06-30 13F ALLIANT ENERGY COM 018802108 108,447 -10,260 5,188 15,706.3011
2020-05-14 2020-03-31 13F ALLIANT ENERGY COM 018802108 118,707 610 0.52 5,732 -11.31 0.0420
2020-02-10 2019-12-31 13F ALLIANT ENERGY COM 018802108 118,097 -5 -0.00 6,463 1.48 0.0391
2019-11-12 2019-09-30 13F ALLIANT ENERGY COM 018802108 118,102 -3,116 -2.57 6,369 7.06 0.0432
2019-07-30 2019-06-30 13F ALLIANT ENERGY COM 018802108 121,218 32,234 36.22 5,949 41.85 0.0409
2019-05-14 2019-03-31 13F ALLIANT ENERGY COM 018802108 88,984 496 0.56 4,194 12.17 0.0281
2019-02-12 2018-12-31 13F ALLIANT ENERGY COM 018802108 88,488 -23,512 -20.99 3,739 -21.58 0.0279
2018-11-13 2018-09-30 13F ALLIANT ENERGY COM 018802108 112,000 -4,575 -3.92 4,768 -3.34 0.0261
2018-08-01 2018-06-30 13F ALLIANT ENERGY COM 018802108 116,575 -836 -0.71 4,933 2.84 0.0291
2018-05-14 2018-03-31 13F ALLIANT ENERGY COM 018802108 117,411 -11,063 -8.61 4,797 -12.37 0.0293
2018-02-13 2017-12-31 13F ALLIANT ENERGY COM 018802108 128,474 -15,910 -11.02 5,474 -8.80 0.0310
2017-11-13 2017-09-30 13F ALLIANT ENERGY COM 018802108 144,384 2,070 1.45 6,002 4.99 0.0323
2017-08-07 2017-06-30 13F ALLIANT ENERGY COM 018802108 142,314 1,930 1.37 5,717 2.79 0.0320
2017-05-15 2017-03-31 13F ALLIANT ENERGY COM 018802108 140,384 -8,121 -5.47 5,562 -1.17 0.0318
2017-02-13 2016-12-31 13F ALLIANT ENERGY COM 018802108 148,505 9,194 6.60 5,628 5.45 0.0336
2016-11-14 2016-09-30 13F ALLIANT ENERGY COM 018802108 139,311 3,093 2.27 5,337 -1.68 0.0333
2016-08-05 2016-06-30 13F ALLIANT ENERGY COM 018802108 136,218 78,286 135.13 5,428 26.14 0.0372
2016-05-12 2016-03-31 13F ALLIANT ENERGY COM 018802108 57,932 283 0.49 4,303 19.53 0.0320
2016-02-11 2015-12-31 13F ALLIANT ENERGY COM 018802108 57,649 63 0.11 3,600 6.89 0.0273
2015-11-12 2015-09-30 13F ALLIANT ENERGY COM 018802108 57,586 -808 -1.38 3,368 -0.09 0.0279
2015-08-06 2015-06-30 13F ALLIANT ENERGY COM 018802108 58,394 -550 -0.93 3,371 -9.21 0.0238
2015-05-14 2015-03-31 13F ALLIANT ENERGY COM 018802108 58,944 58,944 0.00 3,713 0.0254
2015-02-05 2014-12-31 13F/A-1 ALLIANT ENERGY COM 018802108 0 -45,407 -100.00 0 -100.00
2014-11-13 2014-09-30 13F ALLIANT ENERGY COM 018802108 45,407 -110 -0.24 2,516 -9.17 0.0199
2014-08-13 2014-06-30 13F ALLIANT ENERGY COM 018802108 45,517 -50 -0.11 2,770 6.99 0.0212
2014-05-14 2014-03-31 13F ALLIANT ENERGY COM 018802108 45,567 2,120 4.88 2,589 15.48 0.0210
2014-02-13 2013-12-31 13F ALLIANT ENERGY COM 018802108 43,447 1,737 4.16 2,242 8.47 0.0187
2013-11-13 2013-09-30 13F ALLIANT ENERGY COM 018802108 41,710 9,185 28.24 2,067 26.04 0.0181
2013-08-01 2013-06-30 13F ALLIANT ENERGY COM 018802108 32,525 32,525 1,640 0.0166
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.