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Year archive

ALLIANT ENERGY CORP — 2026 filings

All 39 regulatory filings released by ALLIANT ENERGY CORP (LNT) in 2026, sourced directly from the official regulator.

39 Filings
2026 Period
2026 filings (39)
Filing Released Lang
8-K
Regulatory Filings
2026-05-21 English
Interim / Quarterly Report
2026-05-01 English
8-K
Regulatory Filings
2026-05-01 English
Major Shareholding Notification
2026-04-29 English
Major Shareholding Notification
2026-04-28 English
ARS
Annual Report
2026-03-31 English
Proxy Solicitation & Information Statement
2026-03-31 English
Proxy Solicitation & Information Statement
2026-03-31 English
Major Shareholding Notification
2026-03-26 English
Regulatory Filings
2026-03-19 English
Regulatory Filings
2026-03-19 English
Director's Dealing
2026-03-19 English
8-K
Regulatory Filings
2026-03-04 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Director's Dealing
2026-02-24 English
Annual Report FY 2025
2026-02-20 English
Regulatory Filings
2026-02-20 English
Regulatory Filings
2026-02-09 English
Regulatory Filings
2026-02-09 English
Regulatory Filings
2026-02-09 English
Regulatory Filings
2026-02-09 English
Regulatory Filings
2026-02-09 English
Regulatory Filings
2026-02-09 English
Regulatory Filings
2026-02-09 English
Director's Dealing
2026-01-15 English
Director's Dealing
2026-01-12 English
Director's Dealing
2026-01-12 English
Director's Dealing
2026-01-12 English
Director's Dealing
2026-01-12 English
Director's Dealing
2026-01-12 English
Director's Dealing
2026-01-12 English
Director's Dealing
2026-01-12 English
Regulatory Filings
2026-01-08 English