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| Form | Accession ID | Report Date | Filing Date | Accepted At | Source |
|---|---|---|---|---|---|
| 8-K | 0000352541-26-000036 | May 20, 2026 | May 21, 2026 | May 21, 2026 21:05 UTC | EDGAR |
| 8-K | 0001193125-26-116244 | Mar 19, 2026 | Mar 19, 2026 | Mar 19, 2026 21:28 UTC | EDGAR |
| 8-K | 0000352541-26-000009 | Mar 2, 2026 | Mar 4, 2026 | Mar 4, 2026 01:13 UTC | EDGAR |
| 8-K | 0000352541-25-000085 | Dec 2, 2025 | Dec 5, 2025 | Dec 5, 2025 02:45 UTC | EDGAR |
| 8-K | 0000352541-25-000076 | Sep 23, 2025 | Sep 26, 2025 | Sep 25, 2025 23:58 UTC | EDGAR |
| 8-K | 0000352541-25-000055 | May 16, 2025 | May 20, 2025 | May 20, 2025 13:32 UTC | EDGAR |
| 8-K | 0001193125-25-120808 | May 12, 2025 | May 15, 2025 | May 15, 2025 20:12 UTC | EDGAR |
| 8-K | 0001193125-25-116990 | May 9, 2025 | May 9, 2025 | May 9, 2025 21:28 UTC | EDGAR |
Direct links to SEC EDGAR. LNT has additional filings available on the SEC site.
6 numbers ALLIANT ENERGY CORP later changed — same XBRL tag, both filings linked.
Regulated and Unregulated Operating Revenue·Q3 2024
Major restatementwas$1.1B
Revised down in a 10-Q. Any P/S built on the original was 3175.8% too low.
Regulated and Unregulated Operating Revenue·Q2 2024
Major restatementwas$894M
Revised down in a 10-Q. Any P/S built on the original was 2383.3% too low.
Net Cash Provided by (Used in) Operating Activities·Q1 2018
Major restatementwas$89.3M
Revised up in a 10-Q. Any P/OCF built on the original was 42.9% too high.
Net Cash Provided by (Used in) Operating Activities·FY 2016
Major restatementwas$859.6M
Revised down in a 10-K. Any P/OCF built on the original was 118.8% too low.
Net Cash Provided by (Used in) Operating Activities·Q2 2017
Major restatementwas$502M
Revised down in a 10-Q. Any P/OCF built on the original was 101.0% too low.
Net Cash Provided by (Used in) Operating Activities·Q3 2017
Major restatementwas$883.4M
Revised down in a 10-Q. Any P/OCF built on the original was 95.7% too low.
LNT is not the only one.
See every restatement we've found across the market — or get an alert the next time LNT revises a number.
Restatements are detected by comparing every vintage of a fact across all of ALLIANT ENERGY CORP's filings back to 1993. A revision is not by itself a sign of wrongdoing — companies re-file for many legitimate reasons. This list is not exhaustive: it shows LNT's most significant revisions, and a figure absent from it has not been certified as unrevised.
Who is buying and selling ALLIANT ENERGY CORP — insider transactions from Forms 3/4/5/144 and institutional ownership from 13F, 13D, and 13G filings, point-in-time stamped like every other fact in the library. Traders read it as a positioning signal; risk desks read it as concentration.
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