AMSC AMERICAN SUPERCONDUCTOR CORP /DE/
Price Chart
Executive Summary
CEO and CFO of AMSC sold a combined $617K in open-market sales over a 4-day window (June 8–11, 2026), with the CEO selling $636K total and the CFO selling $324K. The sales represent ~0.03% of AMSC's $1.8B market cap — a trivial amount — and follow a 30-day pattern of $2.4M in insider selling. No material bearish signal given the small proportionality and routine nature of the sales.
Key Financial Metrics
Actionable Insight
The insider selling is routine in size and pattern relative to AMSC's market cap. Monitor for any upcoming 8-K or material event that could explain the concentrated selling window, but no immediate action warranted. The 30-day selling trend ($2.4M total) is consistent with diversification or 10b5-1 plan execution rather than informed bearishness.
Key Facts
- CEO Daniel P. McGahn sold 16,500 shares total ($636K) on June 8 and June 11, 2026
- CFO John W. Kosiba Jr. sold 8,312 shares total ($324K) on June 8 and June 11, 2026
- Total cluster value of $617K is ~0.03% of AMSC's $1.8B market cap
- Both sales were open-market transactions (code S), not tax-withholding or option exercises
- Prior 30-day insider activity: 8 sells totaling $2.4M, consistent with ongoing selling pattern
Financial Impact
Total insider sales of $617K represent ~0.03% of market cap — immaterial
Risk Factors
- Continued insider selling pattern could erode confidence if it accelerates beyond 0.1% of market cap per month
- No material financial or operational red flags from this cluster alone
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-AMSC-1781209975687 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 12, 2026
2d ago
|
Insider Cluster
| $40.05 awaiting T+5 | awaiting T+5 | — | $40.02 (−0.07%) |
|
Jun 11, 2026
3d ago
|
Institutional Cluster
| $39.52 awaiting T+5 | awaiting T+5 | — | $40.02 (+1.27%) |
|
Jun 11, 2026
3d ago
|
Insider Cluster
| $39.52 awaiting T+5 | awaiting T+5 | — | $40.02 (+1.27%) |
|
Jun 11, 2026
3d ago
|
Insider Cluster
| $39.52 awaiting T+5 | awaiting T+5 | — | $40.02 (+1.27%) |
|
Jun 10, 2026
4d ago
|
Insider Cluster
| $36.76 awaiting T+5 | awaiting T+5 | — | $40.02 (+8.87%) |
|
May 27, 2026
18d ago
|
8-K
| $51.33 $46.40 | ▼ −9.60% | ▼ −9.92% | $40.02 (−22.03%) |
|
May 21, 2026
24d ago
|
Press Release
| $51.84 $51.15 | ▼ −1.33% | ▼ −3.01% | $40.02 (−22.80%) |
US Market Status
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