MKSI MKS INC

NEUTRAL Impact: 3/10 Insider Cluster (1 insider)
Horizon days Filed Mar 6, 2026 Processed 3mo ago
Insider cluster: 2 insiders, $1.1M total
Final — all horizons settled through T+60d
MKSI ▲ +51.92% at T+60d
NEUTRAL call ✓ call won +51.92% · α vs SPY +39.14% · entry $209.07 → $317.62
Last close $355.69 (close Jun 12) · +70.13% from $209.07 entry
Entry anchored
Mar 5, 03:59 PM ET
via Databento tick
T+1d
+4.34%
call +4.34% · α +3.50%
$218.15
settled 3mo ago
T+5d
+1.66%
call +1.66% · α +3.19%
$212.55
settled 3mo ago
T+20d
+13.34%
call +13.34% · α +15.38%
$236.96
settled 2mo ago
T+60d
+51.92%
call +51.92% · α +39.14%
$317.62
settled 14d ago

Price Chart

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Executive Summary

Director Jacqueline Moloney sold 340 shares of MKSI in the open market for $72,705. This single transaction is part of a broader pattern of recent insider selling, with six insiders collectively selling $7.3M in the past 30 days.

Key Financial Metrics

Direction
selling
Total Value
$72.7K
Insiders
1

Actionable Insight

Monitor for additional insider sales or commentary around earnings; current activity is routine in magnitude and does not signal material concern given the small dollar amount relative to market cap.

Key Facts

  • Director Jacqueline Moloney sold 340.107 shares at $213.7717 per share for a total of $72,705.25
  • Transaction was an open-market sale (Form 4 code 'S')
  • Part of a larger cluster: 6 insiders sold $7.3M worth of stock in the past 30 days
  • This single trade represents approximately 0.0005% of MKSI's $14.4B market cap

Financial Impact

$72,705 in open-market sales by one director

insider ownershipinsider sentiment

Risk Factors

  • Continued insider selling could indicate waning confidence
  • If selling accelerates ahead of earnings or guidance, it may precede negative news

Market Snapshot

Exchange
Nasdaq

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (1 trades, 7d window)cluster-MKSI-1773411620644
18 reports for MKSI
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for MKSI — sortable, filterable
Type Now
Jun 8, 2026
6d ago
Insider Cluster
NEUTRAL ★ 2/10
$318.94 awaiting T+1awaiting T+1$355.69 (+11.52%)
Jun 2, 2026
12d ago
Insider Cluster
NEUTRAL ★ 3/10
$329.66 $334.97▲ +1.61%▲ +2.33%$355.69 (+7.90%)
Jun 2, 2026
12d ago
Insider Cluster
NEUTRAL ★ 4/10
$329.66 $334.97▲ +1.61%▲ +2.33%$355.69 (+7.90%)
May 28, 2026
17d ago
Insider Cluster
NEUTRAL ★ 2/10
$323.41 $322.60▼ −0.25%▼ −0.49%$355.69 (+9.98%)
May 28, 2026
17d ago
Insider Cluster
NEUTRAL ★ 3/10
$323.41 $322.60▼ −0.25%▼ −0.49%$355.69 (+9.98%)
May 26, 2026
19d ago
Insider Cluster
NEUTRAL ★ 3/10
$332.43 $326.37▼ −1.82%▼ −1.84%$355.69 (+7.00%)
May 26, 2026
19d ago
Insider Cluster
NEUTRAL ★ 3/10
$332.43 $326.37▼ −1.82%▼ −1.84%$355.69 (+7.00%)
May 19, 2026
26d ago
Insider Cluster
NEUTRAL ★ 3/10
$293.92 $311.24▲ +5.89%▲ +4.85%$355.69 (+21.02%)
May 15, 2026
4w ago
Insider Cluster
NEUTRAL ★ 3/10
$302.72 $295.27▼ −2.46%▼ −2.40%$355.69 (+17.50%)
May 11, 2026
5w ago
Insider Cluster
NEUTRAL ★ 3/10
$318.37 $311.57▼ −2.14%▼ −2.00%$355.69 (+11.72%)
Showing 10 of 18

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