10-K
File 000-19672
10-K
- Filing date
- 06 Jun 2018
- Reporting date
- 31 Mar 2018
- SEC evidence
- Open document Open filing Open XBRL
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- Company location
- Devens, MA
- Fiscal year end
- 31 March
Company
Names, identifiers, and filing context for this profile.
1 identity field
SEC filing record 1 source field available
AMERICAN SUPERCONDUCTOR CORP /DE/ has filed 1,322 SEC EDGAR filings since 29 Jul 1996
SEC filing history
Showing 376-400 of 858 matching filings.
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25
Current page
16
8-K
File 000-19672
8-K
- Filing date
- 06 Jun 2018
- Reporting date
- 06 Jun 2018
- SEC evidence
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SD
File 000-19672
SD
- Filing date
- 25 May 2018
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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4
FORM 4 SUBMISSION
- Filing date
- 15 May 2018
- Reporting date
- 14 May 2018
- SEC evidence
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4
FORM 4 SUBMISSION
- Filing date
- 15 May 2018
- Reporting date
- 12 May 2018
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8-K
File 000-19672
8-K
- Filing date
- 10 Apr 2018
- Reporting date
- 10 Apr 2018
- SEC evidence
- Open document Open filing
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4
FORM 4 SUBMISSION
- Filing date
- 06 Apr 2018
- Reporting date
- 04 Apr 2018
- SEC evidence
- Open document Open filing
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4
FORM 4 SUBMISSION
- Filing date
- 06 Apr 2018
- Reporting date
- 04 Apr 2018
- SEC evidence
- Open document Open filing
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4
FORM 4 SUBMISSION
- Filing date
- 06 Apr 2018
- Reporting date
- 04 Apr 2018
- SEC evidence
- Open document Open filing
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4
FORM 4 SUBMISSION
- Filing date
- 06 Apr 2018
- Reporting date
- 04 Apr 2018
- SEC evidence
- Open document Open filing
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4
FORM 4 SUBMISSION
- Filing date
- 06 Apr 2018
- Reporting date
- 04 Apr 2018
- SEC evidence
- Open document Open filing
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8-K
File 000-19672
8-K
- Filing date
- 03 Apr 2018
- Reporting date
- 28 Mar 2018
- SEC evidence
- Open document Open filing
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SC 13G
File 005-41994
SC 13G
- Filing date
- 08 Mar 2018
- Reporting date
- Not listed
- SEC evidence
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EFFECT
File 333-222874
EFFECT filing
- Filing date
- 15 Feb 2018
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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UPLOAD
UPLOAD filing
- Filing date
- 13 Feb 2018
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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SC 13G
File 005-41994
AMERICAN SUPERCONDUCTOR 13G
- Filing date
- 13 Feb 2018
- Reporting date
- Not listed
- SEC evidence
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CORRESP
CORRESP filing
- Filing date
- 13 Feb 2018
- Reporting date
- Not listed
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4/A
FORM 4/A SUBMISSION
- Filing date
- 09 Feb 2018
- Reporting date
- 09 Feb 2018
- SEC evidence
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4
FORM 4 SUBMISSION
- Filing date
- 09 Feb 2018
- Reporting date
- 09 Feb 2018
- SEC evidence
- Open document Open filing
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S-3
File 333-222874
S-3
- Filing date
- 05 Feb 2018
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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10-Q
File 000-19672
10-Q
- Filing date
- 05 Feb 2018
- Reporting date
- 31 Dec 2017
- SEC evidence
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8-K
File 000-19672
8-K
- Filing date
- 05 Feb 2018
- Reporting date
- 05 Feb 2018
- SEC evidence
- Open document Open filing
- Next action
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8-K
File 000-19672
8-K
- Filing date
- 01 Feb 2018
- Reporting date
- 01 Feb 2018
- SEC evidence
- Open document Open filing
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SC 13G/A
File 005-41994
SC 13G/A
- Filing date
- 26 Jan 2018
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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10-Q
File 000-19672
10-Q
- Filing date
- 07 Nov 2017
- Reporting date
- 30 Sep 2017
- SEC evidence
- Open document Open filing Open XBRL
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