Alliant Energy Corporation
US ˙ NasdaqGS ˙ US0188021085

SecurityLNT / Alliant Energy Corporation
InstitutionDagco, Inc.
Latest Disclosed Ownership2,976 shares
Latest Disclosed Value $ 213,525
Dagco, Inc. reports 0.71% increase in ownership of LNT / Alliant Energy Corporation

On April 20, 2026 - Dagco, Inc. filed a 13F-HR form disclosing ownership of 2,976 shares of Alliant Energy Corporation (US:LNT) valued at $213,558 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 2,955 shares of Alliant Energy Corporation. This represents a change in shares of 0.71% during the quarter. The current value of the position is $210,671 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)
2026-04-20 2026-03-31 13F ALLIANT ENERGY COM 018802108 2,976 21 0.71 214 10.94 0.0463
2026-01-08 2025-12-31 13F ALLIANT ENERGY COM 018802108 2,955 21 0.72 192 -2.54 0.0444
2025-10-27 2025-09-30 13F ALLIANT ENERGY COM 018802108 2,934 22 0.76 198 11.93 0.0497
2025-08-14 2025-06-30 13F ALLIANT ENERGY COM 018802108 2,912 22 0.76 176 -4.86 0.0491
2025-05-13 2025-03-31 13F ALLIANT ENERGY COM 018802108 2,890 2,890 186 0.0601
2025-02-13 2024-12-31 13F ALLIANT ENERGY COM 018802108 0 -2,686 -100.00 0 -100.00
2024-11-14 2024-09-30 13F ALLIANT ENERGY COM 018802108 2,686 23 0.86 163 20.74 0.0669
2024-08-14 2024-06-30 13F ALLIANT ENERGY COM 018802108 2,663 24 0.91 136 2.27 0.0602
2024-05-15 2024-03-31 13F ALLIANT ENERGY COM 018802108 2,639 2,639 133 0.0606
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.