American Superconductor Corp /De/ (AMSC)

CIK 880807 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for American Superconductor Corp /De/.

Recent SEC filings

FiledFormAccession number
Aug 5, 20268-K0001437749-26-025921
Aug 5, 202610-Q0001437749-26-025922
Jul 31, 2026SCHEDULE 13G/A0002100119-26-001340
Jun 18, 2026ARS0001193125-26-275845
Jun 18, 2026DEFA14A0001193125-26-275831
Jun 18, 2026DEF 14A0001193125-26-275809
Jun 12, 202640001193125-26-269433
Jun 11, 20261440001950047-26-005923
Jun 11, 202640001193125-26-267642
Jun 11, 202640001193125-26-267677
Jun 11, 20261440001950047-26-005955
Jun 10, 202640001193125-26-265996
Jun 10, 20261440001949846-26-000370
Jun 10, 202640001193125-26-265990
Jun 8, 20261440001950047-26-005744
Jun 8, 20261440001950047-26-005745
Jun 3, 202640001193125-26-255471
Jun 3, 20261440001950047-26-005559
Jun 3, 20261440001950047-26-005556
Jun 3, 202640001193125-26-255450
Jun 2, 20261440001950047-26-005472
Jun 2, 20268-K0001437749-26-019163
Jun 2, 20261440001950047-26-005517
May 29, 2026SD0001437749-26-018910
May 27, 20268-K0001437749-26-018539