This cluster is routine and non-informative. The dollar value is trivial relative to market cap, no C-suite executives are selling, and the sales are likely driven by diversification or tax planning. No trading action warranted based on this filing alone.
Price Chart
Executive Summary
Four MKSI insiders sold a total of $2.82M in open-market transactions over a 7-day window, with the largest sale ($1.89M) by EVP Henry David Philip at ~$314/share. The cluster represents ~0.013% of MKSI's $21.5B market cap — a trivial amount — and all sellers are either directors or a non-CEO executive, with no C-suite (CEO/CFO) participation. Per academic literature, cluster sales are not reliably informative, and the dollar magnitude is immaterial relative to company size.
Key Financial Metrics
Key Facts
- Total insider sales: $2.82M across 4 transactions (0.013% of $21.5B market cap)
- Largest seller: EVP Henry David Philip sold 6,000 shares for $1.89M at $314.43
- No CEO or CFO participation — all sellers are directors or a non-C-suite EVP
- All transactions are open-market sales (code S); no purchases in the cluster
- Recent 30-day insider activity: 10 sells totaling $10.8M, consistent with ongoing routine selling
Financial Impact
Total insider sales of $2.82M represent 0.013% of MKSI's $21.5B market cap — immaterial
Risk Factors
- Insider sales could accelerate if broader market or sector weakness emerges
- No purchases in the cluster — lack of insider buying is neutral, not bearish
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-1780427636303 |
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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