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 1-5 of 5 matching filings.

Per page
25
Current page
1
SC 13D/A File 005-41994

SC 13D AMENDMENT NO. 4

Filing date
05 May 2015
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13D/A File 005-41994

SC 13D/A

Filing date
14 Feb 2013
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13D/A File 005-41994

AMENDMENT NO. 2 TO SCHEDULE 13D

Filing date
01 Feb 2012
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13D/A File 005-41994

SCHEDULE 13D/A

Filing date
07 Oct 2011
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SC 13D File 005-41994

SC 13D filing

Filing date
11 Apr 2011
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .