4
FORM 4 SUBMISSION
- Filing date
- 24 May 2021
- Reporting date
- 20 May 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
- 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 1,324 SEC EDGAR filings since 29 Jul 1996
SEC filing history
Showing 251-275 of 860 matching filings.
Per page
25
Current page
11
8-K
File 000-19672
FORM 8-K
- Filing date
- 21 May 2021
- Reporting date
- 21 May 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
424B7
File 333-253611
424B7
- Filing date
- 21 May 2021
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 000-19672
8-K
- Filing date
- 10 May 2021
- Reporting date
- 06 May 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 07 Apr 2021
- Reporting date
- 05 Apr 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 07 Apr 2021
- Reporting date
- 05 Apr 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 07 Apr 2021
- Reporting date
- 05 Apr 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 07 Apr 2021
- Reporting date
- 05 Apr 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
S-3ASR
File 333-253611
S-3ASR
- Filing date
- 26 Feb 2021
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 000-19672
8-K
- Filing date
- 26 Feb 2021
- Reporting date
- 26 Feb 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G
File 005-41994
SEC SCHEDULE 13G
- Filing date
- 16 Feb 2021
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G/A
File 005-41994
SC 13G/A filing
- Filing date
- 10 Feb 2021
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-Q
File 000-19672
FORM 10-Q
- Filing date
- 03 Feb 2021
- Reporting date
- 31 Dec 2020
- SEC evidence
- Open document Open filing Open XBRL
- Next action
- Verify source filing
8-K
File 000-19672
FORM 8-K
- Filing date
- 03 Feb 2021
- Reporting date
- 03 Feb 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 000-19672
FORM 8-K
- Filing date
- 01 Feb 2021
- Reporting date
- 28 Jan 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G/A
File 005-41994
SC 13G/A filing
- Filing date
- 29 Jan 2021
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 22 Jan 2021
- Reporting date
- 21 Jan 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SC 13G/A
File 005-41994
AMERICAN SUPERCONDUCTOR 13G/A
- Filing date
- 08 Jan 2021
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K/A
File 000-19672
FORM 8-K/A
- Filing date
- 14 Dec 2020
- Reporting date
- 01 Oct 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 30 Nov 2020
- Reporting date
- 25 Nov 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
10-Q
File 000-19672
FORM 10-Q
- Filing date
- 04 Nov 2020
- Reporting date
- 30 Sep 2020
- SEC evidence
- Open document Open filing Open XBRL
- Next action
- Verify source filing
8-K
File 000-19672
FORM 8-K
- Filing date
- 04 Nov 2020
- Reporting date
- 04 Nov 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 02 Nov 2020
- Reporting date
- 31 Oct 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
FORM 4 SUBMISSION
- Filing date
- 02 Nov 2020
- Reporting date
- 31 Oct 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
8-K
File 000-19672
8-K
- Filing date
- 26 Oct 2020
- Reporting date
- 22 Oct 2020
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing