The dollar amounts are too small relative to market cap to warrant a directional read. Monitor for any upcoming 8-K or material event that could explain the timing, but this cluster alone does not signal a change in fundamentals.
Price Chart
Executive Summary
Three AMSC insiders, including the CEO and CFO, sold a total of $767K in open-market transactions over a 4-day window. The cluster is entirely selling, but the total value represents only ~0.04% of the company's $1.9B market cap, falling well below the 0.1% materiality threshold. Per academic literature, cluster sales are weak predictors of future returns, and the dollar amounts here are trivial relative to market cap.
Key Financial Metrics
Key Facts
- CEO Daniel McGahn sold $636K total across two days (June 8 and June 11)
- CFO John Kosiba sold $324K total across the same two days
- Director Laura Dambier sold $151K on June 11
- Total cluster value of $767K is ~0.04% of AMSC's $1.9B market cap
- All transactions were open-market sales (code S)
Financial Impact
Total insider sales of $767K represent ~0.04% of market cap — immaterial
Risk Factors
- Insiders may continue selling, increasing supply overhang
- CEO and CFO both selling in the same window could indicate personal portfolio rebalancing rather than bearish conviction
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-AMSC-1781295157079 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Jul 31, 2026 12w ago | Press Release | $29.37 $25.40 | ▼ −13.52% | ▼ −15.97% | $27.63 (−5.92%) |
Jun 12, 2026 19w ago | Insider Cluster | $41.07 $29.31 | ▼ −28.63% | ▼ −29.64% | $27.63 (−32.72%) |
Jun 11, 2026 19w ago | Institutional Cluster | $40.02 $30.44 | ▼ −23.94% | ▼ −27.20% | $27.63 (−30.96%) |
Jun 11, 2026 19w ago | Insider Cluster | $40.02 $30.44 | ▼ −23.94% | ▼ −27.20% | $27.63 (−30.96%) |
Jun 11, 2026 19w ago | Insider Cluster | $40.02 $30.44 | ▼ −23.94% | ▼ −27.20% | $27.63 (−30.96%) |
Jun 10, 2026 19w ago | Insider Cluster | $39.51 $29.55 | ▼ −25.21% | ▼ −29.60% | $27.63 (−30.07%) |
May 27, 2026 21w ago | 8-K | $51.33 $30.01 | ▼ −41.54% | ▼ −43.27% | $27.63 (−46.17%) |
May 21, 2026 22w ago | Press Release | $51.84 $31.02 | ▼ −40.16% | ▼ −43.35% | $27.63 (−46.70%) |
US Market Status
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