ALLIANT ENERGY CORP
Financial highlights
| Metric | FY December 31, 2025 | FY December 31, 2024 | FY December 31, 2023 | FY December 31, 2022 | FY December 31, 2021 |
|---|---|---|---|---|---|
| Revenue | $4.4B | $4.0B | $4.0B | $4.2B | $3.7B |
| Operating income | $1.0B | $886.0M | $943.0M | $928.0M | $795.0M |
| Cost of revenue | $625.0M | $613.0M | $583.0M | $573.0M | $537.0M |
| Cash from operations | $1.2B | $1.2B | $867.0M | $486.0M | $582.0M |
| Capital expenditure | $2.3B | $2.1B | $1.7B | $1.5B | $1.2B |
| Free cash flow | -$1.1B | -$885.0M | -$864.0M | -$998.0M | -$587.0M |
| Impairments | $0 | $60.0M | $0 | $0 | — |
| Total assets | $25.0B | $22.7B | $21.2B | $20.2B | $18.6B |
| Total debt | $12.1B | $9.9B | $9.1B | $8.1B | $7.4B |
Shares outstanding 258.3M · Free float 99.7%
Annual filing data through FY ended December 31, 2025; float as of July 8, 2026.