Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership31,485 shares
Latest Disclosed Value $ 2,259,385
Mercer Global Advisors Inc /adv reports 5.62% decrease in ownership of LNT / Alliant Energy Corporation

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 31,485 shares of Alliant Energy Corporation (US:LNT) valued at $2,259,364 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 33,360 shares of Alliant Energy Corporation. This represents a change in shares of -5.62% during the quarter. The current value of the position is $2,294,312 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 31,485 -1,875 -5.62 2,259 4.20 0.0033
2026-02-17 2025-12-31 13F ALLIANT ENERGY COM 018802108 33,360 2,484 8.05 2,169 4.18 0.0033
2025-11-14 2025-09-30 13F ALLIANT ENERGY COM 018802108 30,876 6,502 26.68 2,081 41.28 0.0035
2025-08-14 2025-06-30 13F ALLIANT ENERGY COM 018802108 24,374 727 3.07 1,474 -3.16 0.0030
2025-05-15 2025-03-31 13F ALLIANT ENERGY COM 018802108 23,647 -17 -0.07 1,522 8.72 0.0035
2025-02-14 2024-12-31 13F ALLIANT ENERGY COM 018802108 23,664 23,664 1,399 0.0034
2024-05-15 2024-03-31 13F ALLIANT ENERGY COM 018802108 0 -21,048 -100.00 0 -100.00
2024-02-15 2023-12-31 13F ALLIANT ENERGY COM 018802108 21,048 385 1.86 1 0.00 0.0032
2023-11-15 2023-09-30 13F/A-1 ALLIANT ENERGY COM 018802108 20,663 -6,138 -22.90 1 0.00 0.0038
2023-11-14 2023-09-30 13F ALLIANT ENERGY COM 018802108 20,663 -6,138 1 0.0038
2023-08-14 2023-06-30 13F ALLIANT ENERGY COM 018802108 26,801 -1,551 -5.47 1 0.00 0.0056
2023-05-16 2023-03-31 13F ALLIANT ENERGY COM 018802108 28,352 -1,933 -6.38 2 0.00 0.0069
2023-02-09 2022-12-31 13F ALLIANT ENERGY COM 018802108 30,285 866 2.94 2 -99.94 0.0084
2022-11-15 2022-09-30 13F ALLIANT ENERGY COM 018802108 29,419 -3,134 -9.63 1,559 -18.29 0.0093
2022-08-10 2022-06-30 13F ALLIANT ENERGY COM 018802108 32,553 23,226 249.02 1,908 227.27 0.0117
2022-05-10 2022-03-31 13F ALLIANT ENERGY COM 018802108 9,327 -5,997 -39.13 583 -38.11 0.0034
2022-02-04 2021-12-31 13F ALLIANT ENERGY COM 018802108 15,324 1,202 8.51 942 19.09 0.0058
2021-11-10 2021-09-30 13F ALLIANT ENERGY COM 018802108 14,122 -21 -0.15 791 0.25 0.0055
2021-08-10 2021-06-30 13F ALLIANT ENERGY COM 018802108 14,143 804 6.03 789 9.13 0.0061
2021-08-10 2021-03-31 13F/A-1 ALLIANT ENERGY COM 018802108 13,339 2,501 23.08 723 29.57 0.0066
2021-05-11 2021-03-31 13F ALLIANT ENERGY COM 018802108 13,339 2,501 723 0.0069
2021-02-12 2020-12-31 13F ALLIANT ENERGY COM 018802108 10,838 -419 -3.72 558 -3.96 0.0070
2020-12-10 2020-09-30 13F ALLIANT ENERGY COM 018802108 11,257 702 6.65 581 15.05 0.0087
2020-08-10 2020-06-30 13F ALLIANT ENERGY COM 018802108 10,555 2,366 28.89 505 27.85 0.0092
2020-05-18 2020-03-31 13F ALLIANT ENERGY COM 018802108 8,189 -112 -1.35 395 -13.00 0.0087
2020-02-13 2019-12-31 13F ALLIANT ENERGY CORP COM COM 018802108 8,301 54 0.65 454 2.25 0.0091
2019-11-12 2019-09-30 13F ALLIANT ENERGY CORP COM COM 018802108 8,247 301 3.79 444 13.85 0.0104
2019-08-14 2019-06-30 13F ALLIANT ENERGY CORP COM COM 018802108 7,946 -1,097 -12.13 390 -8.45 0.0103
2019-04-23 2019-03-31 13F/A-1 ALLIANT ENERGY CORP COM COM 018802108 9,043 9,043 426 0.0153
2019-04-12 2019-03-31 13F ALLIANT ENERGY CORP COM COM 018802108 7,361 311 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.