Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Cedar Rapids, IA
SEC filing record 1 source field available
Fiscal year end
31 December
INTERSTATE POWER & LIGHT CO has filed 506 SEC EDGAR filings since 07 Jan 1994

SEC filing history

Showing 1-25 of 288 matching filings.

Per page
25
Current page
1
POSASR File 333-276062-01

POSASR

Filing date
22 Sep 2025
Reporting date
Not listed
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FWP File 333-276062-01

FWP

Filing date
08 Sep 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
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424B5 File 333-276062-01

424B5

Filing date
08 Sep 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
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424B5 File 333-276062-01

424B5

Filing date
15 May 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
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FWP File 333-276062-01

FWP

Filing date
13 May 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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424B5 File 333-276062-01

424B5

Filing date
13 May 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
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