Skip to main content
ALLIANT ENERGY CORP logo

ALLIANT ENERGY CORP — Investor Relations & Filings

Ticker · LNT ISIN · US0188021085 LEI · 5493009ML300G373MZ12 US Electricity, gas, steam and air conditioning supply
Open in API
Filings indexed 1,486 across all filing types
Latest filing 2026-05-21 Declaration of Voting R…
Country US United States of America
Listing US LNT

About ALLIANT ENERGY CORP

https://www.alliantenergy.com/

Alliant Energy Corporation is a public utility holding company providing regulated energy services. Its core activities include the generation and distribution of electricity and the distribution of natural gas. The company serves approximately one million electric and 425,000 natural gas customers, primarily in Iowa and Wisconsin. Alliant Energy emphasizes a balanced energy mix and is a significant owner-operator of regulated wind and solar assets. The company's mission is to deliver energy solutions and services safely, efficiently, and responsibly to its customers and communities.

Recent filings

Filing Released Lang Actions
8-K
Declaration of Voting Results & Voting Rights Announcements Classification · 95% confidence The document is a Form 8-K “Current Report” under the Securities Exchange Act, and specifically Item 5.07 “Submission of Matters to a Vote of Security Holders,” presenting final vote tallies from the annual meeting. This matches the definition of a Declaration of Voting Results filing (code DVA).
2026-05-21 English
10-Q - ALLIANT ENERGY CORP (0000352541) (Filer)
Interim / Quarterly Report Q1 2026
2026-05-01 English
8-K
Regulatory Filings Classification · 87% confidence The document is a Form 8-K current report filed under the Securities Exchange Act, primarily furnishing a press release (Exhibit 99.1) announcing quarterly results. It does not itself contain substantive financial statements or detailed earnings data, but rather references and attaches a press release. Under the classification rules: it is a regulatory filing (SEC Form 8-K), and since it simply attaches the press release as an exhibit without including full financials, it falls into the general Regulatory Filings category (RNS).
2026-05-01 English
Major Shareholding Notification 2026
Major Shareholding Notification
2026-04-29 English
Major Shareholding Notification 2026
Major Shareholding Notification
2026-04-28 English
ARS
Annual Report
2026-03-31 English

Browse filings by year

17 years

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.