ALLIANT ENERGY CORP
Electric & Other Services Combined
SEC reporting entityCIK 0000352541LNT
Source: SEC EDGAR submissions · Retrieved Sep 19, 2026 · Report a correction or privacy concern
Company identity
- Legal name
- ALLIANT ENERGY CORP
- Incorporation jurisdiction
- Wisconsin
- Business address locality
- MADISON, WI
- Industry classification
- 4931 — Electric & Other Services Combined
- Exchange(s)
- Nasdaq
- State registration status
- Not verified from the state registry
Published identifiers
- SEC Central Index Key (CIK)
- 0000352541
- Federal EIN, as reported to the SEC
- 39-1380265
- State registration number
- Not collected — consult the official registry
- Legal Entity Identifier (LEI)
- Not collected
An EIN displayed here is not an IRS validation. Learn what each identifier means.
Recent public filings
- 8-KAug 21, 2026View on SEC
- 10-QJul 31, 2026View on SEC
- 8-KJul 31, 2026View on SEC
- 8-KMay 21, 2026View on SEC
- 10-QMay 1, 2026View on SEC
Financial statements may be included in these filings. This profile does not calculate revenue, profit or a credit score.
Source and limitations
Collected from SEC EDGAR submissions on Sep 19, 2026. SEC registration and filing activity do not certify that a business is in good standing, solvent or licensed for a particular activity.
Our collection is selective. For current legal registration status, use the Wisconsin official authority. No directors’ personal profiles, home street addresses or consumer credit assessments are provided.