AMERICAN SUPERCONDUCTOR CORP /DE/ — 8-K/A Filings
10 8-K/A filings on record
This page lists all 8-K/A 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 10 8-K/A 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/A | FORM 8-K/A | 0001437749-26-004349 | Feb 17, 2026 | Dec 5, 2025 |
| 8-K/A | FORM 8-K/A | 0001437749-24-024924 | Aug 6, 2024 | Aug 1, 2024 |
| 8-K/A | FORM 8-K/A | 0001437749-20-025291 | Dec 14, 2020 | Oct 1, 2020 |
| 8-K/A | 8-K/A | 0001628280-17-005914 | May 25, 2017 | — |
| 8-K/A | FORM 8-K AMENDMENT | 0001193125-12-041344 | Feb 6, 2012 | Dec 8, 2011 |
| 8-K/A | FORM 8-K/A | 0000950123-10-086373 | Sep 15, 2010 | May 12, 2010 |
| 8-K/A | FORM 8-K AMENDMENT NO. 2 | 0001193125-07-135550 | Jun 14, 2007 | Jan 5, 2007 |
| 8-K/A | FORM 8-K AMENDMENT NO. 1 | 0001193125-07-062978 | Mar 23, 2007 | Jan 5, 2007 |
| 8-K/A | FORM 8-K/A | 0001181431-04-051381 | Nov 9, 2004 | — |
| 8-K/A | AMERICAN SUPERCONDUCTOR CORPORATION 8-K (AMEND #1) | 0000950135-97-002785 | Jun 23, 1997 | Apr 8, 1997 |