Insider sales are small relative to market cap and lack C-suite involvement, making them consistent with routine diversification rather than a bearish signal. The absence of CEO/CFO selling and the trivial proportion of shares sold suggest no material near-term catalyst. Monitor for any upcoming SEC filing (8-K earnings, guidance, or material agreement) that could confirm a catalyst — but the cluster alone does not warrant a directional trade.
Price Chart
Executive Summary
Three directors and one EVP sold a total of ~$1.76M in open-market sales over a 7-day window. The sales are moderate in dollar terms (0.008% of MKSI's $21.5B market cap) and involve mostly directors, with one EVP. No C-suite executives (CEO/CFO) participated. The cluster is best characterized as routine portfolio pruning — the stock has appreciated significantly with the sector, and the dollar amounts are trivial relative to company size.
Key Financial Metrics
Key Facts
- Total insider sales of ~$1.76M over 7 days, representing 0.008% of MKSI's $21.5B market cap
- Sales by three directors (Colella, Donahue, Mora) and one EVP (Henry) — no CEO or CFO participation
- Sales at prices between $318 and $330 per share, near stock's 52-week high
- All transactions are open-market sales (code S) — no gifts, tax withholding, or derivative exercises
Financial Impact
~$1.76M in insider sales, immaterial relative to $21.5B market cap
Risk Factors
- Insider sales could signal cautious sentiment ahead of an unknown catalyst, though the small scale reduces this risk
- Stock trading near high may invite profit-taking regardless of fundamentals
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MKSI-1780427344945 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 1, 2026 4w ago | 144 | $246.44 $265.36 | ▲ +7.68% | ▲ +7.36% | $282.86 (+14.78%) |
Jul 13, 2026 11w ago | Press Release | $352.03 $290.59 | ▼ −17.45% | ▼ −20.64% | $282.86 (−19.65%) |
Jun 8, 2026 16w ago | Insider Cluster | $312.09 $368.06 | ▲ +17.93% | ▲ +16.30% | $282.86 (−9.37%) |
Jun 2, 2026 17w ago | Insider Cluster | $329.66 $411.05 | ▲ +24.69% | ▲ +26.51% | $282.86 (−14.20%) |
Jun 2, 2026 17w ago | Insider Cluster | $329.66 $411.05 | ▲ +24.69% | ▲ +26.51% | $282.86 (−14.20%) |
May 28, 2026 18w ago | Insider Cluster | $323.41 $410.31 | ▲ +26.87% | ▲ +29.56% | $282.86 (−12.54%) |
May 28, 2026 18w ago | Insider Cluster | $323.41 $410.31 | ▲ +26.87% | ▲ +29.56% | $282.86 (−12.54%) |
May 26, 2026 18w ago | Insider Cluster | $332.43 $389.17 | ▲ +17.07% | ▲ +19.33% | $282.86 (−14.91%) |
May 26, 2026 18w ago | Insider Cluster | $332.43 $389.17 | ▲ +17.07% | ▲ +19.33% | $282.86 (−14.91%) |
May 19, 2026 19w ago | Insider Cluster | $293.92 $366.31 | ▲ +24.63% | ▲ +22.37% | $282.86 (−3.76%) |
US Market Status
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