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AMERICAN SUPERCONDUCTOR CORP /DE/

Nasdaq:AMSC
Motors & Generators·DEVENS, MA
OverviewAll FilingsSum FinCreditInsidersGovernance
OverviewAll FilingsSum FinCreditInsidersGovernance

All Filings(1000 total)

TypeDateAccessionPeriodSize
4
Feb 26, 2026
0001193125-26-0773494
Feb 24, 2026
4.6 KB
8-K/A
Feb 17, 2026
0001437749-26-004349FORM 8-K/A
Dec 5, 2025
2.5 MB
10-Q
Feb 4, 2026
0001437749-26-002978FORM 10-Q
Dec 31, 2025
9.3 MB
8-K
Feb 4, 2026
0001437749-26-002977FORM 8-K
Feb 4, 2026
518.2 KB
SCHEDULE 13G/A
Jan 30, 2026
0000102909-26-000102
—
6.8 KB
8-K
Dec 23, 2025
0001193125-25-3309308-K
Dec 23, 2025
157.2 KB
424B7
Dec 23, 2025
0001193125-25-330851424B7
—
450.2 KB
8-K
Dec 10, 2025
0001193125-25-3141538-K
Dec 5, 2025
1.0 MB
4
Nov 13, 2025
0001193125-25-2803714
Jun 18, 2019
4.4 KB
10-Q
Nov 5, 2025
0001437749-25-033351FORM 10-Q
Sep 30, 2025
8.4 MB
8-K
Nov 5, 2025
0001437749-25-033344FORM 8-K
Nov 5, 2025
513.8 KB
144
Aug 8, 2025
0001969223-25-000589
—
4.2 KB
4
Aug 8, 2025
0000950170-25-1058584
Aug 6, 2025
8.3 KB
4
Aug 6, 2025
0000950170-25-1041554
Aug 4, 2022
4.4 KB
4
Aug 6, 2025
0000950170-25-1041494
Aug 4, 2025
7.7 KB
4
Aug 6, 2025
0000950170-25-1041314
Aug 4, 2025
8.4 KB
144
Aug 4, 2025
0001950047-25-005417
—
12.6 KB
144
Aug 4, 2025
0001950047-25-005392
—
9.5 KB
10-Q
Jul 30, 2025
0001437749-25-023968FORM 10-Q
Jun 30, 2025
7.1 MB
8-K
Jul 30, 2025
0001437749-25-023965FORM 8-K
Jul 30, 2025
445.5 KB
8-K
Jul 29, 2025
0001437749-25-023783FORM 8-K
Jul 25, 2025
169.0 KB
ARS
Jun 13, 2025
0001193125-25-140753ARS
Mar 31, 2025
14.0 MB
DEFA14A
Jun 13, 2025
0001193125-25-140738DEFA14A
—
355.7 KB
DEF 14A
Jun 13, 2025
0001193125-25-140726DEF 14A
Jul 25, 2025
3.8 MB
4
Jun 12, 2025
0000950170-25-0854214
Jun 11, 2025
7.7 KB
25 filings shown