American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer McGahn Daniel P
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer Kosiba John W JR
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer McGahn Daniel P
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer Kosiba John W JR
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director Dambier Laura A.
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director House Arthur H
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director Klein Margaret D.
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director Littlefield Barbara G.
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director OLIVER DAVID R JR
American Superconductor | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-AWM Investment Company, Inc.(7.3%)
American Superconductor | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-Royce & Associates, LP 52-2343049(4.11%)
American Superconductor | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-Baillie Gifford & Co (Scottish partnership)(6.88%)
American Superconductor | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-Baillie Gifford & Co (Scottish partnership)(4.93%)
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer McGahn Daniel P
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer Kosiba John W JR
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer Kosiba John W JR
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Officer McGahn Daniel P
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director House Arthur H
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director Klein Margaret D.
American Superconductor | 4: Statement of changes in beneficial ownership of securities-Director Dambier Laura A.
No Data