Insider sales of this magnitude are not reliably predictive of near-term downside. Monitor upcoming earnings or material announcements for context, but no immediate trading action is warranted based on this cluster alone.
Price Chart
Executive Summary
CEO Esaka Fumihide and CTO Hanson Scott McLean sold a combined ~$7.52M in open-market shares over a 7-day window, representing 0.54% of AMBQ's market cap. The sales were largely concurrent with option exercises, suggesting routine portfolio diversification rather than a bearish signal. Insider sales are weak predictors per academic literature, and the cluster size is modest relative to market cap.
Key Financial Metrics
Key Facts
- CEO Esaka Fumihide sold ~108,500 shares for ~$6.17M across multiple transactions from Aug 31 to Sep 2, 2026.
- CTO Hanson Scott McLean sold 22,590 shares for $1.35M on Aug 27, 2026.
- Total open-market sales: ~$7.52M, or 0.54% of AMBQ's $1.4B market cap.
- Many sales were same-day with option exercises (non-cash derivative transactions), indicating tax- or exercise-related selling.
- Only 2 insiders traded; no cluster of buys to offset the selling.
Financial Impact
~$7.52M in insider sales, 0.54% of market cap
Risk Factors
- CEO selling a large portion of holdings could signal reduced confidence, though option-exercise patterns mitigate this.
- If additional negative news emerges (e.g., earnings miss, guidance cut), these sales may be viewed as informed selling in hindsight.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-AMBQ-1788382891378 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 16, 2026 10d ago | Insider Cluster | $49.62 | awaiting T+20 | — | $51.06 (−2.90%) |
Sep 17, 2026 5w ago | Insider Cluster | $65.46 $49.88 | ▲ +23.80% | ▲ +24.01% | $51.06 (+22.00%) |
Sep 15, 2026 5w ago | Insider Cluster | $59.90 $51.55 | ▲ +13.94% | ▲ +16.00% | $51.06 (+14.76%) |
Sep 9, 2026 6w ago | Insider Cluster | $60.66 $58.90 | ▼ −2.90% | ▼ −5.28% | $51.06 (−15.83%) |
Sep 2, 2026 7w ago | Insider Cluster | $56.43 $68.18 | ▲ +20.82% | ▲ +22.01% | $51.06 (−9.52%) |
Aug 18, 2026 9w ago | Insider Cluster | $59.19 $62.35 | ▲ +5.34% | ▲ +6.18% | $51.06 (−13.74%) |
Aug 15, 2026 10w ago | Institutional Cluster | $67.86 $60.85 | ▼ −10.33% | ▼ −8.35% | $51.06 (−24.76%) |
Aug 11, 2026 11w ago | 8-K | $65.29 $63.77 | ▼ −2.33% | ▼ −1.27% | $51.06 (−21.80%) |
Jul 30, 2026 12w ago | 8-K | $63.23 $60.09 | ▼ −4.97% | ▼ −8.93% | $51.06 (−19.25%) |
Jun 24, 2026 17w ago | EFFECT | $81.18 $77.55 | ▼ −4.47% | ▼ −6.40% | $51.06 (−37.10%) |
US Market Status
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