AMERICAN SUPERCONDUCTOR CORP /DE/ reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Devens, MA
SEC filing record 1 source field available
Fiscal year end
31 March
AMERICAN SUPERCONDUCTOR CORP /DE/ has filed 1,324 SEC EDGAR filings since 29 Jul 1996

SEC filing history

Showing 276-300 of 860 matching filings.

Per page
25
Current page
12
424B5 File 333-222874

424B5

Filing date
23 Oct 2020
Reporting date
Not listed
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424B5 File 333-222874

424B5

Filing date
21 Oct 2020
Reporting date
Not listed
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8-K File 000-19672

FORM 8-K

Filing date
05 Oct 2020
Reporting date
05 Oct 2020
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8-K File 000-19672

FORM 8-K

Filing date
05 Oct 2020
Reporting date
01 Oct 2020
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8-K File 000-19672

FORM 8-K

Filing date
02 Oct 2020
Reporting date
01 Oct 2020
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8-K File 000-19672

FORM 8-K

Filing date
16 Sep 2020
Reporting date
11 Sep 2020
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8-K File 000-19672

FORM 8-K

Filing date
05 Aug 2020
Reporting date
31 Jul 2020
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4

FORM 4 SUBMISSION

Filing date
29 Jul 2020
Reporting date
27 Jul 2020
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4

FORM 4 SUBMISSION

Filing date
29 Jul 2020
Reporting date
27 Jul 2020
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4

FORM 4 SUBMISSION

Filing date
30 Jun 2020
Reporting date
28 Jun 2020
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4

FORM 4 SUBMISSION

Filing date
30 Jun 2020
Reporting date
28 Jun 2020
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DEFA14A File 000-19672

DEFA14A

Filing date
19 Jun 2020
Reporting date
Not listed
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DEF 14A File 000-19672

DEF 14A

Filing date
19 Jun 2020
Reporting date
31 Jul 2020
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SC 13G/A File 005-41994

SC 13G/A

Filing date
19 Jun 2020
Reporting date
Not listed
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4

FORM 4 SUBMISSION

Filing date
04 Jun 2020
Reporting date
02 Jun 2020
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4

FORM 4 SUBMISSION

Filing date
04 Jun 2020
Reporting date
02 Jun 2020
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8-K File 000-19672

FORM 8-K

Filing date
02 Jun 2020
Reporting date
02 Jun 2020
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8-K File 000-19672

FORM 8-K

Filing date
27 May 2020
Reporting date
21 May 2020
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4

FORM 4 SUBMISSION

Filing date
26 May 2020
Reporting date
21 May 2020
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4

FORM 4 SUBMISSION

Filing date
26 May 2020
Reporting date
21 May 2020
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SD File 000-19672

FORM SD

Filing date
26 May 2020
Reporting date
Not listed
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4

FORM 4 SUBMISSION

Filing date
07 Apr 2020
Reporting date
03 Apr 2020
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4

FORM 4 SUBMISSION

Filing date
07 Apr 2020
Reporting date
03 Apr 2020
SEC evidence
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