American Superconductor Corporation (AMSC) SEC filings
AMSC SEC filings moved a median of +0.14% by the close. AMSC SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the AMSC overview →
54 measured AMSC SEC filing events.
Where these AMSC SEC filings landedvs 54 measured AMSC SEC filing reactions
| Middle 50% of AMSC SEC filing reactions | -1.53% to +3.24% |
|---|---|
| Median reaction (to close) | +0.14% |
| Measured reactions | 54 |
Point-in-time · zero look-ahead
Half of the 54 AMSC SEC filing events with a measured close landed between -1.53% and +3.24%; 56% closed up.
| Date | Headline | Event | 5-min | To close |
|---|---|---|---|---|
| Form 8-K AMERICAN SUPERCONDUCTOR For: Sep 17 | SEC filing · Form 8-K | +1.16% | +3.31% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Jun 30 | SEC filing · Form 10-Q | +2.41% | +11.00% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jul 31 | SEC filing · Form 8-K | +2.41% | +11.00% | |
| Form ARS AMERICAN SUPERCONDUCTOR For: Mar 31 | SEC filing · Form ARS | +0.95% | +3.96% | |
| Form DEF 14A AMERICAN SUPERCONDUCTOR For: Jul 31 | SEC filing · Form DEF | +0.95% | +3.96% | |
| Form DEFA14A AMERICAN SUPERCONDUCTOR | SEC filing · Form DEFA14A | +0.95% | +3.96% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jun 01 | SEC filing · Form 8-K | -5.35% | -8.47% | |
| Form SD AMERICAN SUPERCONDUCTOR | SEC filing · Form SD | +3.80% | +3.86% | |
| Form 10-K AMERICAN SUPERCONDUCTOR For: Mar 31 | SEC filing · Form 10-K | -4.02% | +2.66% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: May 27 | SEC filing · Form 8-K | -4.02% | +2.66% | |
| Form 8-K/A AMERICAN SUPERCONDUCTOR For: Dec 05 | SEC filing · Form 8-K | -1.52% | -7.00% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Dec 31 | SEC filing · Form 10-Q | -7.23% | -18.11% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Feb 04 | SEC filing · Form 8-K | -7.23% | -18.11% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Dec 23 | SEC filing · Form 8-K | +0.03% | -0.54% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Dec 05 | SEC filing · Form 8-K | -2.01% | -1.71% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Sep 30 | SEC filing · Form 10-Q | -3.20% | -14.02% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Nov 05 | SEC filing · Form 8-K | -3.20% | -14.02% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Jun 30 | SEC filing · Form 10-Q | +9.48% | +18.93% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jul 30 | SEC filing · Form 8-K | +9.48% | +18.93% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jul 25 | SEC filing · Form 8-K | +1.31% | +0.90% | |
| Form ARS AMERICAN SUPERCONDUCTOR For: Mar 31 | SEC filing · Form ARS | -0.07% | -1.27% | |
| Form DEF 14A AMERICAN SUPERCONDUCTOR For: Jul 25 | SEC filing · Form DEF | -0.07% | -1.27% | |
| Form DEFA14A AMERICAN SUPERCONDUCTOR | SEC filing · Form DEFA14A | -0.07% | -1.27% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jun 10 | SEC filing · Form 8-K | +1.25% | -0.98% | |
| Form 10-K AMERICAN SUPERCONDUCTOR For: Mar 31 | SEC filing · Form 10-K | -8.08% | -0.28% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: May 15 | SEC filing · Form 8-K | -8.08% | -0.28% | |
| Form SD AMERICAN SUPERCONDUCTOR | SEC filing · Form SD | -8.08% | -0.28% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Dec 31 | SEC filing · Form 10-Q | +9.05% | +22.29% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jan 30 | SEC filing · Form 8-K | +9.05% | +22.29% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Sep 30 | SEC filing · Form 10-Q | -5.26% | +0.08% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Oct 30 | SEC filing · Form 8-K | -5.26% | +0.08% | |
| Form S-8 AMERICAN SUPERCONDUCTOR | SEC filing · Form S-8 | +0.81% | +0.41% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Aug 12 | SEC filing · Form 8-K | +3.04% | +3.04% | |
| Form S-3ASR AMERICAN SUPERCONDUCTOR | SEC filing · Form S-3ASR | +3.04% | +3.04% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Jun 30 | SEC filing · Form 10-Q | -6.89% | -1.53% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Aug 06 | SEC filing · Form 8-K | -6.89% | -1.53% | |
| Form 8-K/A AMERICAN SUPERCONDUCTOR For: Aug 01 | SEC filing · Form 8-K | -6.89% | -1.53% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Aug 01 | SEC filing · Form 8-K | -3.24% | +11.90% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Aug 02 | SEC filing · Form 8-K | -6.48% | -4.72% | |
| Form ARS AMERICAN SUPERCONDUCTOR For: Mar 31 | SEC filing · Form ARS | -0.46% | +1.62% | |
| Form DEF 14A AMERICAN SUPERCONDUCTOR For: Aug 02 | SEC filing · Form DEF | -0.46% | +1.62% | |
| Form DEFA14A AMERICAN SUPERCONDUCTOR | SEC filing · Form DEFA14A | -0.46% | +1.62% | |
| Form PRE 14A AMERICAN SUPERCONDUCTOR For: Aug 02 | SEC filing · Form PRE | +0.55% | +2.33% | |
| Form 10-K AMERICAN SUPERCONDUCTOR For: Mar 31 | SEC filing · Form 10-K | +9.97% | -2.84% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: May 23 | SEC filing · Form 8-K | +9.97% | -2.84% | |
| Form SD AMERICAN SUPERCONDUCTOR | SEC filing · Form SD | -0.79% | +0.96% | |
| Form EFFECT AMERICAN SUPERCONDUCTOR | SEC filing · Form EFFECT | -0.64% | -4.93% | |
| Form S-3/A AMERICAN SUPERCONDUCTOR | SEC filing · Form S-3 | -0.47% | -1.34% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jan 30 | SEC filing · Form 8-K | +0.54% | +1.44% | |
| Form S-3 AMERICAN SUPERCONDUCTOR | SEC filing · Form S-3 | -4.35% | -4.35% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Dec 31 | SEC filing · Form 10-Q | -7.24% | +5.41% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Jan 24 | SEC filing · Form 8-K | -7.24% | +5.41% | |
| Form 10-Q AMERICAN SUPERCONDUCTOR For: Sep 30 | SEC filing · Form 10-Q | -2.11% | +0.14% | |
| Form 8-K AMERICAN SUPERCONDUCTOR For: Nov 01 | SEC filing · Form 8-K | -2.11% | +0.14% |
Keep exploring
More AMSC: earnings → · analyst actions → · AMSC overview →
Other Technology names and their SEC filings
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Energous Corporation (WATT) | 188 | 0.00% | 46% |
| Sono-Tek Corporation (SOTK) | 187 | +0.00% | 51% |
| DZS INC (DZSI) | 185 | 0.00% | 24% |
| CSP Inc. (CSPI) | 184 | +0.59% | 56% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.