MKS INC — Director's Dealing 2018

Feb 21, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2018-02-20

Reporting Person: BAGSHAW SETH H (Sr. VP, CFO & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-20	Common Stock	S	5000	$115.214	Disposed	23068.966	Direct

Footnotes

F1: This transaction was executed in multiple trades at prices ranging from $115.18 to $115.32. 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.