MKSI MKS INC
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
Actionable Insight
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.
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
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 | ||||
|---|---|---|---|---|---|
|
Jun 8, 2026
4d ago
|
Insider Cluster
| $318.94 awaiting T+1 | awaiting T+1 | — | $355.69 (+11.52%) |
|
Jun 2, 2026
10d ago
|
Insider Cluster
| $329.66 $334.97 | ▲ +1.61% | ▲ +2.33% | $355.69 (+7.90%) |
|
Jun 2, 2026
10d ago
|
Insider Cluster
| $329.66 $334.97 | ▲ +1.61% | ▲ +2.33% | $355.69 (+7.90%) |
|
May 28, 2026
15d ago
|
Insider Cluster
| $323.41 $322.60 | ▼ −0.25% | ▼ −0.49% | $355.69 (+9.98%) |
|
May 28, 2026
15d ago
|
Insider Cluster
| $323.41 $322.60 | ▼ −0.25% | ▼ −0.49% | $355.69 (+9.98%) |
|
May 26, 2026
17d ago
|
Insider Cluster
| $332.43 $326.37 | ▼ −1.82% | ▼ −1.84% | $355.69 (+7.00%) |
|
May 26, 2026
17d ago
|
Insider Cluster
| $332.43 $326.37 | ▼ −1.82% | ▼ −1.84% | $355.69 (+7.00%) |
|
May 19, 2026
24d ago
|
Insider Cluster
| $293.92 $311.24 | ▲ +5.89% | ▲ +4.85% | $355.69 (+21.02%) |
|
May 15, 2026
28d ago
|
Insider Cluster
| $302.72 $295.27 | ▼ −2.46% | ▼ −2.40% | $355.69 (+17.50%) |
|
May 11, 2026
4w ago
|
Insider Cluster
| $318.37 $311.57 | ▼ −2.14% | ▼ −2.00% | $355.69 (+11.72%) |
US Market Status
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