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Buy AMSC
American Superconductor Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -88.14. In total, the insiders bought 1.39M and sold 1.33M AMSC shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
-88.14 |
| ● Buy | 1.39M shares |
| ● Sell | 1.33M shares |
|
45% Buy Activity
Weak Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Apr 03, 2026 Buy |
Dambier Laura A. Director |
3 116 Value: $145.4K |
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|
Apr 03, 2026 Buy |
House Arthur H Director |
3 116 Value: $145.4K |
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|
Apr 03, 2026 Buy |
Klein Margaret D. Director |
3 116 Value: $145.4K |
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|
Apr 03, 2026 Buy |
Donnelly Terence Robert Director |
2 665 Value: $124.4K |
||
|
Apr 03, 2026 Buy |
Oliver David R Jr Director |
3 116 Value: $145.4K |
||
|
Apr 03, 2026 Buy |
Littlefield Barbara G. Director |
3 116 Value: $145.4K |
||
|
Feb 24, 2026 Sell |
Oliver David R Jr Director |
200 Value: $7K |
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|
Aug 08, 2025 Sell |
House Arthur H Director |
9 703 Value: $494.1K |
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|
Aug 08, 2025 Sell |
House Arthur H Director |
9 703 Value: $494.1K |
||
|
Aug 06, 2025 Buy |
House Arthur H Director |
9 703 Value: $66.0K |
||
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Aug 06, 2025 Buy |
House Arthur H Director |
9 703 Value: $66.0K |
||
|
Aug 06, 2025 Buy |
House Arthur H Director |
9 703 Value: $66.0K |
||
|
Aug 06, 2025 Buy |
House Arthur H Director |
9 703 Value: $66.0K |
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|
Aug 04, 2025 Sell |
Mcgahn Daniel P Chairman, President And CEO |
73 105 Value: $3.97M |
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|
Aug 04, 2025 Sell |
Mcgahn Daniel P Chairman, President And CEO |
27 743 Value: $1.53M |
||
|
Aug 04, 2025 Sell |
Kosiba John W Jr SVP, CFO & Treasurer |
34 260 Value: $1.86M |
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|
Aug 04, 2025 Sell |
Kosiba John W Jr SVP, CFO & Treasurer |
15 740 Value: $867.7K |
||
|
Aug 04, 2025 Sell |
Kosiba John W Jr SVP, CFO & Treasurer |
9 843 Value: $543.9K |
||
|
Aug 04, 2025 Sell |
Kosiba John W Jr SVP, CFO & Treasurer |
9 843 Value: $543.9K |
||
|
Aug 04, 2025 Sell |
Kosiba John W Jr SVP, CFO & Treasurer |
15 740 Value: $867.7K |
||
|
Aug 04, 2025 Sell |
Kosiba John W Jr SVP, CFO & Treasurer |
34 260 Value: $1.86M |
||
|
Aug 04, 2025 Sell |
Mcgahn Daniel P Chairman, President And CEO |
27 743 Value: $1.53M |
||
|
Aug 04, 2025 Sell |
Mcgahn Daniel P Chairman, President And CEO |
73 105 Value: $3.97M |
||
|
Jun 11, 2025 Sell |
Mcgahn Daniel P Chairman, President And CEO |
12 315 Value: $351.7K |
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|
Jun 11, 2025 Sell |
Mcgahn Daniel P Chairman, President And CEO |
500 Value: $14.5K |
About Insider Power
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
