10-Q
File 001-04117
FORM 10-Q
- Filing date
- 05 Aug 2011
- Reporting date
- 30 Jun 2011
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INTERSTATE POWER & LIGHT CO reports
- Company location
- Cedar Rapids, IA
- Fiscal year end
- 31 December
Company
Names, identifiers, and filing context for this profile.
1 identity field
SEC filing record 1 source field available
INTERSTATE POWER & LIGHT CO has filed 506 SEC EDGAR filings since 07 Jan 1994
SEC filing history
Showing 251-275 of 288 matching filings.
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Current page
11
8-K
File 001-04117
FORM 8-K
- Filing date
- 04 Aug 2011
- Reporting date
- 04 Aug 2011
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8-K
File 001-04117
FORM 8-K
- Filing date
- 27 Jul 2011
- Reporting date
- 26 Jul 2011
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UPLOAD
UPLOAD filing
- Filing date
- 28 Jun 2011
- Reporting date
- Not listed
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CORRESP
CORRESP filing
- Filing date
- 14 Jun 2011
- Reporting date
- Not listed
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UPLOAD
UPLOAD filing
- Filing date
- 03 Jun 2011
- Reporting date
- Not listed
- SEC evidence
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8-K
File 001-04117
FORM 8-K
- Filing date
- 13 May 2011
- Reporting date
- 10 May 2011
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25-NSE
File 001-04117
25-NSE filing
- Filing date
- 09 May 2011
- Reporting date
- Not listed
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10-Q
File 001-04117
FORM 10-Q
- Filing date
- 05 May 2011
- Reporting date
- 31 Mar 2011
- SEC evidence
- Open document Open filing Open XBRL
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25
File 001-04117
FORM 25
- Filing date
- 29 Apr 2011
- Reporting date
- Not listed
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8-K
File 001-04117
FORM 8-K
- Filing date
- 15 Mar 2011
- Reporting date
- 15 Mar 2011
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10-K
File 001-04117
FORM 10-K
- Filing date
- 28 Feb 2011
- Reporting date
- 31 Dec 2010
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SC 13G/A
File 005-78000
SC 13G/A filing
- Filing date
- 15 Feb 2011
- Reporting date
- Not listed
- SEC evidence
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8-K
File 001-04117
FORM 8-K
- Filing date
- 09 Feb 2011
- Reporting date
- 08 Feb 2011
- SEC evidence
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SC 13G
File 005-78000
SC 13G filing
- Filing date
- 01 Feb 2011
- Reporting date
- Not listed
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8-K
File 001-04117
FORM 8-K
- Filing date
- 21 Dec 2010
- Reporting date
- 20 Dec 2010
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EFFECT
File 333-170631
EFFECT filing
- Filing date
- 24 Nov 2010
- Reporting date
- Not listed
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8-K
File 001-04117
FORM 8-K
- Filing date
- 19 Nov 2010
- Reporting date
- 15 Nov 2010
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S-3
File 333-170631
FORM S-3
- Filing date
- 16 Nov 2010
- Reporting date
- Not listed
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8-K
File 001-04117
FORM 8-K
- Filing date
- 29 Oct 2010
- Reporting date
- 27 Oct 2010
- SEC evidence
- Open document Open filing
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10-Q
File 001-04117
FORM 10-Q
- Filing date
- 29 Oct 2010
- Reporting date
- 30 Sep 2010
- SEC evidence
- Open document Open filing Open XBRL
- Next action
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424B5
File 333-159478
FINAL PROSPECTUS SUPPLEMENT
- Filing date
- 24 Aug 2010
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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8-K
File 001-04117
FORM 8-K
- Filing date
- 24 Aug 2010
- Reporting date
- 23 Aug 2010
- SEC evidence
- Open document Open filing
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FWP
File 333-159478
FREE WRITING PROSPECTUS
- Filing date
- 23 Aug 2010
- Reporting date
- Not listed
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424B5
File 333-159478
PRELIMINARY PROSPECTUS SUPPLEMENT
- Filing date
- 23 Aug 2010
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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