Mairs and Power's LNT Position Overview
Mairs and Power (via Mairs & Power INC) currently holds 2.89 M shares of Alliant Energy Corporation (LNT) worth $207.32 M, representing 2.12% of the portfolio. First purchased in 2013-Q4, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Mairs and Power has maintained a long-term strategic position in LNT, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2023, adding 1.63 M shares. Largest reduction occurred in Q1 2025, reducing 869,329 shares.
Analysis based on 13F filings available since 2013 Q2
Mairs and Power's Alliant Energy Corporation (LNT) Holding Value Over Time
Track share changes against reported price movement
Quarterly Alliant Energy Corporation (LNT) Trades by Mairs and Power
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -67,887 | Reduce 2.30% | 2.89 M | $71.76 |
| Q4 2025 | -36,696 | Reduce 1.23% | 2.96 M | $65.01 |
| Q3 2025 | -48,499 | Reduce 1.59% | 2.99 M | $67.41 |
| Q2 2025 | -2,496 | Reduce 0.08% | 3.04 M | $60.47 |
| Q1 2025 | -869,329 | Reduce 22.21% | 3.04 M | $64.35 |
| Q4 2024 | -181,252 | Reduce 4.43% | 3.91 M | $59.14 |
| Q3 2024 | +263,820 | Add 6.89% | 4.1 M | $60.69 |
| Q2 2024 | +510,031 | Add 15.36% | 3.83 M | $50.90 |
| Q1 2024 | +147,884 | Add 4.66% | 3.32 M | $50.40 |
| Q4 2023 | +67,550 | Add 2.17% | 3.17 M | $51.30 |
| Q3 2023 | +388,503 | Add 14.30% | 3.11 M | $48.45 |
| Q2 2023 | +1.63 M | Add 149.81% | 2.72 M | $52.48 |
| Q1 2023 | +405,997 | Add 59.55% | 1.09 M | $53.40 |
| Q4 2022 | -44,517 | Reduce 6.13% | 681,800 | $55.21 |
| Q3 2022 | -44,428 | Reduce 5.76% | 726,317 | $52.99 |
| Q2 2022 | -3,086 | Reduce 0.40% | 770,745 | $58.61 |
| Q1 2022 | -1,153 | Reduce 0.15% | 773,831 | $62.48 |
| Q4 2021 | -1,911 | Reduce 0.25% | 774,984 | $61.47 |
| Q3 2021 | +4,814 | Add 0.62% | 776,895 | $55.98 |
| Q2 2021 | +28,123 | Add 3.78% | 772,081 | $55.76 |
| Q1 2021 | +228,737 | Add 44.40% | 743,958 | $54.16 |
| Q4 2020 | +290,297 | Add 129.06% | 515,221 | $51.53 |
| Q3 2020 | +219,306 | Add 3903.63% | 224,924 | $51.65 |
| Q2 2019 | -1,610 | Reduce 22.27% | 5,618 | $49.13 |
| Q3 2018 | -369 | Reduce 4.86% | 7,228 | $42.61 |
| Q2 2018 | +369 | Add 5.11% | 7,597 | $42.39 |
| Q3 2017 | -1,500 | Reduce 17.19% | 7,228 | $41.51 |
| Q1 2015 | -266 | Reduce 2.96% | 8,728 | $31.51 |
| Q3 2014 | -134 | Reduce 1.47% | 8,994 | $27.69 |
| Q1 2014 | +1,218 | Add 15.40% | 9,128 | $28.37 |
| Q4 2013 | +7,910 | New Buy | 7,910 | $25.79 |
Mairs and Power's Alliant Energy Corporation Investment FAQs
Mairs and Power first purchased Alliant Energy Corporation (LNT) in Q4 2013, acquiring 7,910 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mairs and Power has held Alliant Energy Corporation (LNT) for 50 quarters since Q4 2013.
Mairs and Power's largest addition to Alliant Energy Corporation (LNT) was in Q2 2023, adding 2,717,431 shares worth $142.61 M.
According to the latest 13F filing for Q1 2026, Mairs and Power's firm, Mairs & Power INC, owns 2,889,060 shares of Alliant Energy Corporation (LNT), valued at approximately $207.32 M.
As of the Q1 2026 filing, Alliant Energy Corporation (LNT) represents approximately 2.12% of Mairs and Power's publicly disclosed stock portfolio, making it one of their key holdings.
Mairs and Power's peak holding in Alliant Energy Corporation (LNT) was 4,095,219 shares, as reported at the end of Q3 2024.