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 1,308 SEC EDGAR filings since 29 Jul 1996

SEC filing history

Showing 26-50 of 844 matching filings.

Per page
25
Current page
2
4

4

Filing date
13 Nov 2025
Reporting date
18 Jun 2019
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144 File 000-19672

144 filing

Filing date
08 Aug 2025
Reporting date
Not listed
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4

4

Filing date
08 Aug 2025
Reporting date
06 Aug 2025
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4

4

Filing date
06 Aug 2025
Reporting date
04 Aug 2022
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4

4

Filing date
06 Aug 2025
Reporting date
04 Aug 2025
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4

4

Filing date
06 Aug 2025
Reporting date
04 Aug 2025
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144 File 000-19672

144 filing

Filing date
04 Aug 2025
Reporting date
Not listed
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144 File 000-19672

144 filing

Filing date
04 Aug 2025
Reporting date
Not listed
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ARS File 000-19672

ARS

Filing date
13 Jun 2025
Reporting date
31 Mar 2025
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DEFA14A File 000-19672

DEFA14A

Filing date
13 Jun 2025
Reporting date
Not listed
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DEF 14A File 000-19672

DEF 14A

Filing date
13 Jun 2025
Reporting date
25 Jul 2025
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4

4

Filing date
12 Jun 2025
Reporting date
11 Jun 2025
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4

4

Filing date
12 Jun 2025
Reporting date
11 Jun 2025
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144 File 000-19672

144 filing

Filing date
11 Jun 2025
Reporting date
Not listed
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144 File 000-19672

144 filing

Filing date
11 Jun 2025
Reporting date
Not listed
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424B5 File 333-281496

424B5

Filing date
10 Jun 2025
Reporting date
Not listed
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4

4

Filing date
09 Jun 2025
Reporting date
06 Jun 2025
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