AMERICAN SUPERCONDUCTOR CORP /DE/ — SD Filings
12 SD filings on record
This page lists all SD 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 12 SD 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 |
|---|---|---|---|---|
| SD | FORM SD | 0001437749-25-018002 | May 21, 2025 | — |
| SD | FORM SD | 0001437749-24-018462 | May 28, 2024 | — |
| SD | FORM SD | 0001437749-23-016150 | May 31, 2023 | — |
| SD | FORM SD | 0001437749-22-013309 | May 23, 2022 | — |
| SD | FORM SD | 0001437749-21-013534 | May 27, 2021 | — |
| SD | FORM SD | 0001437749-20-011739 | May 26, 2020 | — |
| SD | FORM SD | 0001437749-19-011068 | May 30, 2019 | — |
| SD | SD | 0001628280-18-007199 | May 25, 2018 | — |
| SD | SD | 0001193125-17-182633 | May 25, 2017 | — |
| SD | SD | 0001193125-16-606336 | May 27, 2016 | — |
| SD | SD | 0001193125-15-202938 | May 28, 2015 | — |
| SD | FORM SD | 0001193125-14-219937 | May 30, 2014 | — |