Quick answer
Alliant Energy Corp (LNT) reported diluted EPS of $0.87 for the quarter ended 2026-03-31, in a 10-Q filed with the SEC on 2026-05-01. Its last four 10-Q/10-K filings were on 2026-05-01, 2026-02-20, 2025-11-07, 2025-08-08.
Data as of 2026-05-01. Source: SEC EDGAR XBRL company facts (10-K/10-Q filings)
| Period end | Period | Form | SEC filing date | Diluted EPS |
|---|---|---|---|---|
| 2026-03-31 | Quarter | 10-Q | 2026-05-01 | $0.87 |
| 2025-12-31 | Full year | 10-K | 2026-02-20 | $3.14 |
| 2025-09-30 | Quarter | 10-Q | 2025-11-07 | $1.09 |
| 2025-06-30 | Quarter | 10-Q | 2025-08-08 | $0.68 |
| 2025-03-31 | Quarter | 10-Q | 2025-05-09 | $0.83 |
| 2024-12-31 | Full year | 10-K | 2025-02-21 | $2.69 |
| 2024-09-30 | Quarter | 10-Q | 2024-11-01 | $1.15 |
| 2024-06-30 | Quarter | 10-Q | 2024-08-02 | $0.34 |
| 2024-03-31 | Quarter | 10-Q | 2024-05-03 | $0.62 |
| 2023-12-31 | Full year | 10-K | 2024-02-16 | $2.78 |
| 2023-09-30 | Quarter | 10-Q | 2023-11-03 | $1.02 |
| 2023-06-30 | Quarter | 10-Q | 2023-08-04 | $0.64 |
| 2023-03-31 | Quarter | 10-Q | 2023-05-05 | $0.65 |
| 2022-12-31 | Full year | 10-K | 2023-02-24 | $2.73 |
| 2022-09-30 | Quarter | 10-Q | 2022-11-08 | $0.90 |
| 2022-06-30 | Quarter | 10-Q | 2022-08-05 | $0.63 |
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Last updated 2026-10-16. Data only, not financial or tax advice.