These sales are too small relative to market cap to signal a bearish view. Monitor for any upcoming earnings release or material news that could have prompted routine portfolio rebalancing. No immediate trading action warranted.
Price Chart
Executive Summary
Three Amkor insiders, including two directors and the CFO, sold a total of $1.70M in shares over a one-week window. The sales are modest relative to the $13.8B market cap (0.01%), and the cluster is dominated by a single director's $1.36M sale. Per academic literature, insider sales clusters are weak predictors of stock movement, especially at this trivial proportionality level, and the presence of a 10b5-1 plan or routine diversification is likely.
Key Financial Metrics
Key Facts
- Three insiders sold a total of $1.70M in shares between Aug 4-11, 2026.
- The largest sale was by Director Guillaume Marie Jean Rutten for $1.36M (25K shares at $54.50).
- CFO Megan Faust sold 1,000 shares for $54K, a small fraction of her likely total holdings.
- Total sales represent only ~0.01% of Amkor's $13.8B market cap, well below the 0.1% materiality threshold.
- The cluster is dominated by one director's sale; the other two sales are individually trivial.
Financial Impact
Total insider sales of $1.70M represent 0.01% of market cap — immaterial.
Risk Factors
- Insider sales could be misinterpreted as a negative signal by retail traders.
- A larger, unannounced sale by a C-suite executive could follow, but this cluster alone is not predictive.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-AMKR-1786691048151 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 19, 2026 6w ago | Insider Cluster | $50.89 $47.95 | ▼ −5.78% | ▼ −3.83% | $56.19 (+10.41%) |
Aug 13, 2026 7w ago | Insider Cluster | $57.75 $51.73 | ▼ −10.42% | ▼ −8.68% | $56.19 (−2.70%) |
Aug 11, 2026 7w ago | Insider Cluster | $54.30 $51.35 | ▼ −5.43% | ▼ −4.37% | $56.19 (+3.48%) |
Aug 7, 2026 8w ago | Insider Cluster | $55.27 $47.77 | ▼ −13.57% | ▼ −13.17% | $56.19 (+1.66%) |
Aug 3, 2026 8w ago | Institutional Cluster | $50.84 $47.30 | ▼ −6.96% | ▼ −8.20% | $56.19 (+10.52%) |
Jul 27, 2026 9w ago | 8-K | $45.69 $48.70 | ▲ +6.59% | ▲ +3.21% | $56.19 (+22.98%) |
Jul 23, 2026 10w ago | Institutional Cluster | $65.33 $50.86 | ▼ −22.15% | ▼ −25.46% | $56.19 (−13.99%) |
Jul 20, 2026 10w ago | Insider Cluster | $62.56 $61.30 | ▼ −2.01% | ▼ −6.13% | $56.19 (−10.18%) |
Jul 20, 2026 10w ago | Insider Cluster | $62.56 $61.30 | ▼ −2.01% | ▼ −6.13% | $56.19 (−10.18%) |
May 21, 2026 19w ago | 8-K | $65.90 $93.63 | ▲ +42.07% | ▲ +41.74% | $56.19 (−14.73%) |
US Market Status
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