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Form 8-K · Current Report · Filed 2026-04-06

Kathleen F. Burke to Retire from MKS Inc.

On March 31, 2026, Kathleen F. Burke, Executive Vice President, General Counsel, and Secretary of MKS Inc., announced her intent to retire effective June 1, 2026. She will continue in a special advisor role until July 1, 2026.

Filer
MKS Instruments Inc. MKSI · NASDAQ
Filed
Accession
0001193125-26-142945
CIK
0001049502
Signal
High impactTechnology

Items reported

Item events

Reported Item

Key Executive Departure

Market reaction

Close before filing

$234.66

Next session

+1.5%

Since filing

+26.8%

Latest close

$297.45

What happened, not what will happen — closing prices around the filing date.

Precedent

Previous filings from MKSI reporting the same item, with the next session's move:

Insider tape

Within 45 days of this filing, MKSI insiders reported 12 Form 4 transactions — net selling of $3.5M.

Full MKSI insider history →

About MKS Instruments Inc.

MKS Instruments Inc. designs and manufactures instruments, subsystems, and process control solutions for advanced manufacturing processes. The company's primary function is to provide essential technologies for manufacturers of semiconductors, industrial technologies, life and health sciences, and other advanced products. MKS Instruments focuses on critical areas like vacuum and gas technologies, photonics, and laser solutions, enabling precise measurement, control, and analysis crucial for product quality and efficiency. MKS Instruments plays a vital role in the semiconductor industry by offering products that ensure the precision and accuracy required for advanced fabrication processes. The company's innovative technologies are also significant in areas such as aerospace, defense, and research sectors, where precision and reliability are paramount. With a legacy dating back to 1961, MKS Instruments has cemented its position in the financial markets as a trusted provider of advanced technology solutions. Its contributions are pivotal in supporting the development of next-generation technologies, making it a key player in driving technological advancement and efficiency across multiple industries.

Exchange NASDAQ Industry Scientific & Technical Instruments Company website ↗

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