Interstate Power & Light Co

CIK 52485 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Interstate Power & Light Co.

Recent SEC filings

FiledFormAccession number
Oct 30, 202610-Q0000352541-26-000047
Oct 30, 20268-K0000352541-26-000045
Oct 28, 20268-K0001193125-26-435177
Aug 21, 20268-K0001193125-26-360020
Aug 20, 2026424B50001193125-26-359182
Aug 18, 2026424B50001193125-26-354786
Aug 18, 2026FWP0001193125-26-355568
Jul 31, 202610-Q0000352541-26-000043
Jul 31, 20268-K0000352541-26-000042
May 1, 202610-Q0000352541-26-000033
May 1, 20268-K0000352541-26-000030
Feb 20, 202610-K0000352541-26-000007
Feb 20, 20268-K0000352541-26-000005
Jan 8, 20268-K0000352541-26-000003
Dec 16, 20258-K0000352541-25-000089
Nov 7, 202510-Q0000352541-25-000081
Nov 7, 20258-K0000352541-25-000079
Sep 22, 2025POSASR0001193125-25-210261
Sep 11, 20258-K0000352541-25-000074
Sep 10, 2025424B50001193125-25-200103
Sep 8, 2025424B50001193125-25-197821
Sep 8, 2025FWP0001193125-25-198338
Aug 8, 202510-Q0000352541-25-000072
Aug 8, 20258-K0000352541-25-000070
May 19, 20258-K0001628280-25-026398