MKS INC — Director's Dealing 2017

Feb 2, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2017-02-01

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-01	Common Stock	S	1000	$66.60	Disposed	9209.518	Direct

Footnotes

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