AMSC — AMERICAN SUPERCONDUCTOR CORP /DE/
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
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Measured signals that fired on AMSC
| date | signal | measured base rate |
|---|---|---|
| 2026-08-05 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-08 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-04-15 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-03-26 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
| 2026-03-25 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-06-11 | McGahn Daniel P Chairman, President and CEO | Open-market sale 10b5-1 plan | 11.5K | 37.28 | 429.0K |
| 2026-06-11 | Kosiba John W JR SVP, CFO & Treasurer | Open-market sale 10b5-1 plan | 5.0K | 37.33 | 187.6K |
| 2026-06-11 | McGahn Daniel P Chairman, President and CEO | Open-market sale 10b5-1 plan | 4.6K | 37.85 | 174.5K |
| 2026-06-11 | Dambier Laura A. Director | Open-market sale | 4.0K | 37.63 | 150.5K |
| 2026-06-11 | Kosiba John W JR SVP, CFO & Treasurer | Open-market sale 10b5-1 plan | 1.7K | 37.85 | 66.0K |
| 2026-06-08 | McGahn Daniel P Chairman, President and CEO | Open-market sale 10b5-1 plan | 5.0K | 41.39 | 206.6K |
| 2026-06-08 | McGahn Daniel P Chairman, President and CEO | Open-market sale 10b5-1 plan | 4.7K | 42.19 | 197.4K |
| 2026-06-08 | Kosiba John W JR SVP, CFO & Treasurer | Open-market sale 10b5-1 plan | 3.3K | 41.50 | 136.4K |
| 2026-06-08 | Kosiba John W JR SVP, CFO & Treasurer | Open-market sale 10b5-1 plan | 1.5K | 42.35 | 65.6K |
| 2026-06-03 | McGahn Daniel P Chairman, President and CEO | Open-market sale 10b5-1 plan | 7.1K | 48.31 | 341.8K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 134.8M | 4.0M |
| VANGUARD CAPITAL MANAGEMENT LLC | 69.0M | 2.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 57.9M | 1.7M |
| BAILLIE GIFFORD & CO | 49.0M | 1.4M |
| STATE STREET CORP | 42.7M | 1.3M |
| GEODE CAPITAL MANAGEMENT, LLC | 39.6M | 1.2M |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 38.6M | 1.1M |
| Nuveen, LLC | 34.6M | 1.0M |
| OBERWEIS ASSET MANAGEMENT INC/ | 28.8M | 849.9K |
| AWM Investment Company, Inc. | 27.1M | 801.6K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Will Strong Q1 Results and Raised Profitability Guidance Change American Superconductor's (AMSC) Narrative - simplywall.st · 2026-08-20 · simplywall.st
- Will Strong Q1 Results and Raised Profitability Guidance Change American Superconductor's (AMSC) Narrative - simplywall.st · 2026-08-20 · simplywall.st
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