MKSI MKS INC

NEUTRAL Impact: 3/10 Insider Cluster (3 insiders)
Horizon immediate Filed May 15, 2026 Processed 28d 22h ago
Insider cluster: 3 insiders, $2.6M total
Latest settled — T+5d
MKSI ▲ +5.83% at T+5d
NEUTRAL call ✓ call won +5.83% · α vs SPY +4.87% · entry $302.72 → $320.37
Next anchor: T+20d tomorrow
Currently $355.69 · +17.50% from $302.72 entry
Entry anchored
May 15, 2026
via day open
T+1d
-2.46%
call -2.46% · α -2.40%
$295.27
settled 26d ago
T+5d
+5.83%
call +5.83% · α +4.87%
$320.37
settled 22d ago
T+20d
call — · α —
tomorrow
T+60d
call — · α —
in 8w

Price Chart

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Executive Summary

Three MKSI insiders sold shares totaling $2.62M over one week following strong Q1 earnings. The sales represent just 0.012% of market cap and include the EVP & GC and an EVP. Director grants (non-cash) also occurred. Given the trivial dollar amount relative to a $21.2B market cap and the proximity to a well-received earnings beat, the cluster appears to be routine profit-taking or liquidity-driven, not a bearish signal.

Key Financial Metrics

Direction
selling
Total Value
$2.6M
Insiders
3

Actionable Insight

The insider selling volume is immaterial. Monitor Q2 2026 results for any change in fundamentals; the cluster does not warrant defensive action.

Key Facts

  • Total insider sales of $2.62M are 0.012% of MKSI's $21.2B market cap
  • Two EVPs sold: Burke Kathleen Flaherty (EVP, GC & Secretary) sold $1.39M, Taranto Eric Robert (EVP & GM, VSD) sold $911K
  • Director Moloney sold $312K; seven directors received non-cash grants totaling 781 shares each
  • Sales occurred within 9 days after Q1 2026 earnings beat: revenue $1.078B (at high end), Non-GAAP EPS $2.30 (above guidance)

Financial Impact

Total insider sales of $2.62M, negligible relative to $21.2B market cap

insider holdings

Risk Factors

  • Convertible notes reclassified to short-term debt may create overhang if conversion occurs
  • Future insider selling acceleration could signal caution, but current pattern is routine

Market Snapshot

Exchange
Nasdaq
Sector
Industrial Instruments For Measurement, Display, and Control
Analyst Consensus
85% bullish (20 analysts)

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-MKSI-1778853906044
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
4d ago
Insider Cluster
NEUTRAL ★ 2/10
$318.94 awaiting T+1awaiting T+1$355.69 (+11.52%)
Jun 2, 2026
10d ago
Insider Cluster
NEUTRAL ★ 3/10
$329.66 $334.97▲ +1.61%▲ +2.33%$355.69 (+7.90%)
Jun 2, 2026
10d ago
Insider Cluster
NEUTRAL ★ 4/10
$329.66 $334.97▲ +1.61%▲ +2.33%$355.69 (+7.90%)
May 28, 2026
15d ago
Insider Cluster
NEUTRAL ★ 2/10
$323.41 $322.60▼ −0.25%▼ −0.49%$355.69 (+9.98%)
May 28, 2026
15d ago
Insider Cluster
NEUTRAL ★ 3/10
$323.41 $322.60▼ −0.25%▼ −0.49%$355.69 (+9.98%)
May 26, 2026
17d ago
Insider Cluster
NEUTRAL ★ 3/10
$332.43 $326.37▼ −1.82%▼ −1.84%$355.69 (+7.00%)
May 26, 2026
17d ago
Insider Cluster
NEUTRAL ★ 3/10
$332.43 $326.37▼ −1.82%▼ −1.84%$355.69 (+7.00%)
May 19, 2026
24d ago
Insider Cluster
NEUTRAL ★ 3/10
$293.92 $311.24▲ +5.89%▲ +4.85%$355.69 (+21.02%)
May 15, 2026
28d ago
Insider Cluster
NEUTRAL ★ 3/10
$302.72 $295.27▼ −2.46%▼ −2.40%$355.69 (+17.50%)
May 11, 2026
4w ago
Insider Cluster
NEUTRAL ★ 3/10
$318.37 $311.57▼ −2.14%▼ −2.00%$355.69 (+11.72%)
Showing 10 of 18

US Market Status

Market Closed — Opens Mon (48h 51m)

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