AMERICAN SUPERCONDUCTOR CORP /DE/ — 8-K Filings
248 8-K filings on record
This page lists all 8-K filings submitted to the SEC by AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC), sorted by most recent first. Each row links to the full filing on EdgarLookup. AMERICAN SUPERCONDUCTOR CORP /DE/ has filed 248 8-K documents with the SEC since 2007. To view all SEC filings by AMERICAN SUPERCONDUCTOR CORP /DE/, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
3
3/A
4
4/A
424B1
424B2
424B3
424B4
424B5
424B7
5
8-A12G
8-A12G/A
8-K
8-K/A
ARS
CORRESP
CT ORDER
D
DEF 14A
DEFA14A
DEFR14A
EFFECT
FWP
NT 10-K
NT 10-Q
POS AM
POSASR
PRE 14A
S-1
S-3
S-3/A
S-3ASR
S-3MEF
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | FORM 8-K | 0001437749-26-002977 | Feb 4, 2026 | — |
| 8-K | 8-K | 0001193125-25-330930 | Dec 23, 2025 | — |
| 8-K | 8-K | 0001193125-25-314153 | Dec 10, 2025 | Dec 5, 2025 |
| 8-K | FORM 8-K | 0001437749-25-033344 | Nov 5, 2025 | — |
| 8-K | FORM 8-K | 0001437749-25-023965 | Jul 30, 2025 | — |
| 8-K | FORM 8-K | 0001437749-25-023783 | Jul 29, 2025 | Jul 25, 2025 |
| 8-K | FORM 8-K | 0001193125-25-139243 | Jun 11, 2025 | Jun 10, 2025 |
| 8-K | FORM 8-K | 0001437749-25-017983 | May 21, 2025 | May 15, 2025 |
| 8-K | FORM 8-K | 0001437749-25-002901 | Feb 5, 2025 | Jan 30, 2025 |
| 8-K | FORM 8-K | 0001437749-24-032617 | Oct 30, 2024 | — |
| 8-K | 8-K | 0001193125-24-199141 | Aug 13, 2024 | Aug 12, 2024 |
| 8-K | FORM 8-K | 0001437749-24-024881 | Aug 6, 2024 | — |
| 8-K | 8-K | 0001193125-24-193425 | Aug 5, 2024 | Aug 1, 2024 |
| 8-K | 8-K | 0001193125-24-193965 | Aug 5, 2024 | Aug 2, 2024 |
| 8-K | FORM 8-K | 0001437749-24-018599 | May 29, 2024 | May 23, 2024 |
| 8-K | 8-K | 0001193125-24-020938 | Jan 31, 2024 | Jan 30, 2024 |
| 8-K | FORM 8-K | 0001437749-24-002040 | Jan 24, 2024 | — |
| 8-K | FORM 8-K | 0001437749-23-029749 | Nov 1, 2023 | — |
| 8-K | FORM 8-K | 0001437749-23-023329 | Aug 11, 2023 | — |
| 8-K | FORM 8-K | 0001437749-23-022786 | Aug 9, 2023 | — |
| 8-K | 8-K | 0001193125-23-171201 | Jun 21, 2023 | Jun 15, 2023 |
| 8-K | FORM 8-K | 0001437749-23-016264 | May 31, 2023 | — |
| 8-K | FORM 8-K | 0001437749-23-002268 | Feb 1, 2023 | — |
| 8-K | FORM 8-K | 0001437749-22-025365 | Nov 1, 2022 | — |
| 8-K | 8-K | 0001193125-22-213651 | Aug 5, 2022 | Aug 2, 2022 |
| 8-K | FORM 8-K | 0001437749-22-018628 | Aug 3, 2022 | — |
| 8-K | FORM 8-K | 0001437749-22-014780 | Jun 10, 2022 | Jun 7, 2022 |
| 8-K | FORM 8-K | 0001437749-22-014033 | Jun 1, 2022 | — |
| 8-K | FORM 8-K | 0001437749-22-002207 | Feb 2, 2022 | — |
| 8-K | FORM 8-K | 0001437749-21-025697 | Nov 8, 2021 | — |
| 8-K | FORM 8-K | 0001437749-21-018522 | Aug 4, 2021 | — |
| 8-K | 8-K | 0001193125-21-233260 | Aug 2, 2021 | Jul 30, 2021 |
| 8-K | FORM 8-K | 0001437749-21-013955 | Jun 2, 2021 | — |
| 8-K | FORM 8-K | 0001437749-21-013279 | May 25, 2021 | May 20, 2021 |
| 8-K | FORM 8-K | 0001193125-21-168626 | May 21, 2021 | — |
| 8-K | 8-K | 0001193125-21-156251 | May 10, 2021 | May 6, 2021 |
| 8-K | 8-K | 0001193125-21-060434 | Feb 26, 2021 | — |
| 8-K | FORM 8-K | 0001437749-21-001859 | Feb 3, 2021 | — |
| 8-K | FORM 8-K | 0001437749-21-001681 | Feb 1, 2021 | Jan 28, 2021 |
| 8-K | FORM 8-K | 0001437749-20-022520 | Nov 4, 2020 | — |
| 8-K | 8-K | 0001193125-20-276900 | Oct 26, 2020 | Oct 22, 2020 |
| 8-K | FORM 8-K | 0001437749-20-020735 | Oct 5, 2020 | — |
| 8-K | FORM 8-K | 0001437749-20-020734 | Oct 5, 2020 | Oct 1, 2020 |
| 8-K | FORM 8-K | 0001437749-20-020660 | Oct 2, 2020 | Oct 1, 2020 |
| 8-K | FORM 8-K | 0001437749-20-019767 | Sep 16, 2020 | Sep 11, 2020 |
| 8-K | FORM 8-K | 0001437749-20-016665 | Aug 5, 2020 | Jul 31, 2020 |
| 8-K | FORM 8-K | 0001437749-20-012274 | Jun 2, 2020 | — |
| 8-K | FORM 8-K | 0001437749-20-011837 | May 27, 2020 | May 21, 2020 |
| 8-K | FORM 8-K | 0001437749-20-001788 | Feb 5, 2020 | — |
| 8-K | FORM 8-K | 0001437749-19-021590 | Nov 5, 2019 | — |