MKS INC — Director's Dealing 2017

Nov 7, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2017-11-06

Reporting Person: Quirk Brian Charles (Sr. VP, Global Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-11-06	Common Stock	S	2000	$107.90	Disposed	13784.964	Direct

Footnotes

F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.