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MKS INC Director's Dealing 2025

Feb 19, 2025

30723_dirs_2025-02-19_b89352c0-ca75-4b23-9104-87c41de11c1d.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2025-02-18

Reporting Person: COLELLA GERARD G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-02-18	Common Stock	S	8000	$104.528	Disposed	60017	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5737.588	Direct

Footnotes

F1: This transaction was executed in multiple trades at prices ranging from $104.37 to $104.68. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.