DEFA14A ·Filed Mar 31, 2026

MKSI

MKS INC
NEUTRAL
Impact 4/10
Horizonimmediate Processed6mo ago SEC0001193125-26-133389
Proxy solicitation materials
Actionable Insight • Neutral

Monitor the outcome of the shareholder vote on the stock incentive plan and executive compensation, as these could influence future equity dilution and management alignment with shareholder interests. The vote on lowering the special meeting threshold could impact shareholder activism potential.

DirectionNeutral
Confidencehigh
Horizonimmediate
Final — all horizons settled through T+60d
MKSI ▲ +78.59% at T+60d
NEUTRAL call ✓ call won +78.59% · α vs SPY +65.68% · entry $229.75 → $410.31
Entry anchored
Mar 30, 03:59 PM ET
via exchange tick
T+1d
+2.13%
call +2.13% · α +1.39%
$234.65
settled 6mo ago
T+5d
+10.84%
call +10.84% · α +6.90%
$254.66
settled 6mo ago
T+20d
+16.55%
call +16.55% · α +7.13%
$267.78
settled 5mo ago
T+60d
+78.59%
call +78.59% · α +65.68%
$410.31
settled 3mo ago

Price Chart

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Executive Summary

MKS Inc. has filed a definitive proxy statement for its 2026 annual meeting, where shareholders will vote on key governance matters including the election of three directors, approval of an amended stock incentive plan, ratification of auditors, and a shareholder proposal to lower the threshold for calling special meetings.

Key Facts

  • Annual meeting scheduled for May 11, 2026, for shareholders of record as of March 3, 2026
  • Three director nominees: Peter J. Cannone III, Joseph B. Donahue, and Wissam G. Jabre
  • Board recommends approval of the Amended and Restated 2022 Stock Incentive Plan
  • Board recommends approval of advisory vote on executive compensation
  • Board recommends ratification of PricewaterhouseCoopers LLP as independent auditor
  • Board recommends approval of reducing special meeting threshold from 40% to 25%, while opposing a shareholder proposal to reduce it to 10%

Financial Impact

No direct financial impact from this proxy filing, as it primarily covers governance matters

governanceexecutive compensationshareholder rights

Risk Factors

  • Potential for shareholder dissent on executive compensation or stock incentive plan
  • Possible governance changes if shareholder proposals gain traction

Market Snapshot

Exchange
Nasdaq
Sector
Industrial Instruments For Measurement, Display, and Control

Investment Themes

Industrials & Manufacturing

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
DEFA14A Filing (Primary)0001193125-26-133389
Document: 0001193125-26-133389-index-headers.html0001193125-26-133389
Document: 0001193125-26-133389-index.html0001193125-26-133389
Document: 0001193125-26-133389.txt0001193125-26-133389
20 reports for MKSI
Performance horizon

Track record builds as more directional reports settle.

Filters
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Reports for MKSI — sortable, filterable
TypeNow
Sep 1, 2026
4w ago
144
NEUTRAL ★ 2/10
$246.44 $265.36▲ +7.68%▲ +7.36%$282.86 (+14.78%)
Jul 13, 2026
11w ago
Press Release
NEUTRAL ★ 2/10
$352.03 $290.59▼ −17.45%▼ −20.64%$282.86 (−19.65%)
Jun 8, 2026
16w ago
Insider Cluster
NEUTRAL ★ 2/10
$312.09 $368.06▲ +17.93%▲ +16.30%$282.86 (−9.37%)
Jun 2, 2026
17w ago
Insider Cluster
NEUTRAL ★ 3/10
$329.66 $411.05▲ +24.69%▲ +26.51%$282.86 (−14.20%)
Jun 2, 2026
17w ago
Insider Cluster
NEUTRAL ★ 4/10
$329.66 $411.05▲ +24.69%▲ +26.51%$282.86 (−14.20%)
May 28, 2026
18w ago
Insider Cluster
NEUTRAL ★ 2/10
$323.41 $410.31▲ +26.87%▲ +29.56%$282.86 (−12.54%)
May 28, 2026
18w ago
Insider Cluster
NEUTRAL ★ 3/10
$323.41 $410.31▲ +26.87%▲ +29.56%$282.86 (−12.54%)
May 26, 2026
18w ago
Insider Cluster
NEUTRAL ★ 3/10
$332.43 $389.17▲ +17.07%▲ +19.33%$282.86 (−14.91%)
May 26, 2026
18w ago
Insider Cluster
NEUTRAL ★ 3/10
$332.43 $389.17▲ +17.07%▲ +19.33%$282.86 (−14.91%)
May 19, 2026
19w ago
Insider Cluster
NEUTRAL ★ 3/10
$293.92 $366.31▲ +24.63%▲ +22.37%$282.86 (−3.76%)
Showing 10 of 20

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