AMERICAN SUPERCONDUCTOR CORP /DE/ — 4 Filings
499 4 filings on record
This page lists all 4 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 499 4 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 |
|---|---|---|---|---|
| 4 | 4 | 0001193125-26-077349 | Feb 26, 2026 | Feb 24, 2026 |
| 4 | 4 | 0001193125-25-280371 | Nov 13, 2025 | Jun 18, 2019 |
| 4 | 4 | 0000950170-25-105858 | Aug 8, 2025 | Aug 6, 2025 |
| 4 | 4 | 0000950170-25-104131 | Aug 6, 2025 | Aug 4, 2025 |
| 4 | 4 | 0000950170-25-104149 | Aug 6, 2025 | Aug 4, 2025 |
| 4 | 4 | 0000950170-25-104155 | Aug 6, 2025 | Aug 4, 2022 |
| 4 | 4 | 0000950170-25-085421 | Jun 12, 2025 | Jun 11, 2025 |
| 4 | 4 | 0000950170-25-085408 | Jun 12, 2025 | Jun 11, 2025 |
| 4 | 4 | 0000950170-25-083818 | Jun 9, 2025 | Jun 6, 2025 |
| 4 | 4 | 0000950170-25-083826 | Jun 9, 2025 | Jun 6, 2025 |
| 4 | 4 | 0000950170-25-079157 | May 29, 2025 | May 27, 2025 |
| 4 | 4 | 0000950170-25-079138 | May 29, 2025 | May 27, 2025 |
| 4 | 4 | 0000950170-25-079169 | May 29, 2025 | May 27, 2025 |
| 4 | 4 | 0000950170-25-076404 | May 22, 2025 | May 20, 2025 |
| 4 | 4 | 0000950170-25-076416 | May 22, 2025 | May 20, 2025 |
| 4 | 4 | 0000950170-25-074454 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-074461 | May 19, 2025 | May 15, 2025 |
| 4 | 4 | 0000950170-25-051168 | Apr 4, 2025 | Apr 3, 2025 |
| 4 | 4 | 0000950170-25-051186 | Apr 4, 2025 | Apr 3, 2025 |
| 4 | 4 | 0000950170-25-051187 | Apr 4, 2025 | Apr 3, 2025 |
| 4 | 4 | 0000950170-25-051183 | Apr 4, 2025 | Apr 3, 2025 |
| 4 | 4 | 0000950170-25-051189 | Apr 4, 2025 | Apr 3, 2025 |
| 4 | 4 | 0000950170-24-122413 | Nov 6, 2024 | Nov 4, 2024 |
| 4 | 4 | 0000950170-24-110883 | Oct 1, 2024 | Sep 30, 2024 |
| 4 | 4 | 0000950170-24-110427 | Sep 30, 2024 | Sep 26, 2024 |
| 4 | 4 | 0000950170-24-072273 | Jun 12, 2024 | Jun 11, 2024 |
| 4 | 4 | 0000950170-24-072272 | Jun 12, 2024 | Jun 11, 2024 |
| 4 | 4 | 0000950170-24-063979 | May 23, 2024 | May 21, 2024 |
| 4 | 4 | 0000950170-24-063992 | May 23, 2024 | May 21, 2024 |
| 4 | 4 | 0000950170-24-041905 | Apr 4, 2024 | Apr 3, 2024 |
| 4 | 4 | 0000950170-24-041906 | Apr 4, 2024 | Apr 3, 2024 |
| 4 | 4 | 0000950170-24-041903 | Apr 4, 2024 | Apr 3, 2024 |
| 4 | 4 | 0000950170-24-041899 | Apr 4, 2024 | Apr 3, 2024 |
| 4 | 4 | 0000950170-24-041901 | Apr 4, 2024 | Apr 3, 2024 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-039350 | Jun 23, 2023 | Jun 21, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-039376 | Jun 23, 2023 | Jun 21, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-038394 | Jun 20, 2023 | Jun 15, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-038383 | Jun 20, 2023 | Jun 15, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-023781 | Apr 7, 2023 | Apr 5, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-023769 | Apr 7, 2023 | Apr 5, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-023776 | Apr 7, 2023 | Apr 5, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-023763 | Apr 7, 2023 | Apr 5, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-23-023766 | Apr 7, 2023 | Apr 5, 2023 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-061893 | Dec 19, 2022 | Dec 16, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-061904 | Dec 19, 2022 | Dec 16, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-060921 | Dec 13, 2022 | Dec 12, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-055316 | Nov 2, 2022 | Oct 31, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-054266 | Oct 21, 2022 | Oct 19, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-036620 | Jun 14, 2022 | Jun 10, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-036623 | Jun 14, 2022 | Jun 10, 2022 |