FilingsTodayAlliant Energy
At a glance
Alliant Energy reported 2025 revenue of $4.36B, up 9.6% from $3.98B in 2024. Over 4 years since 2021 ($3.67B), that is growth of about 4.4% a year. Operating margin was 23.5%, up from 21.7% in 2021. 2025 was the highest revenue year in this period.
In the last 12 months 1 insider reported 0 open-market purchases and 1 sale ($7). None of the sales were flagged as 10b5-1 plan trades. The largest was a sale of $7 by EVP and CFO Robert J Durian on Aug 12, 2026.
Alliant Energy filed 13 current reports (Form 8-K) in the last 12 months, most often for results of operations (5), material agreement (3), new financial obligation (2) and other events (2). The latest officer or director change was reported on Jan 8, 2026. It reported a material agreement or a completed acquisition or disposal 3 times.
2 of the 20 investors tracked here held Alliant Energy at the last quarter end, worth $39.3M combined. It is the largest weight for Renaissance Technologies (0.1% of its portfolio), followed by National Pension Service (Korea) (0%). Added: National Pension Service (Korea). Reduced: Renaissance Technologies.
Annual results
| Year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Net income | $674M | $686M | $703M | $690M | $810M |
| Diluted EPS | $2.63 | $2.73 | $2.78 | $2.69 | $3.14 |
| Dividend per share | $1.61 | $1.71 | $1.81 | $1.92 | $2.03 |
Fiscal year ends Dec 31 · incorporated in WI
Tracked investors holding (13F)
Weight is the share of each investor's portfolio, as of the quarter end.
Current reports (8-K, last 12 months)
Insider open-market trades (last 12 months)
Source: SEC EDGAR. How figures are combined