MKS INC — Director's Dealing 2019

Dec 10, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2019-12-06

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-12-06	Common Stock	M	120	—	Acquired	19129.132	Direct
2019-12-06	Common Stock	M	145	—	Acquired	19274.132	Direct
2019-12-06	Common Stock	M	159	—	Acquired	19433.132	Direct
2019-12-06	Common Stock	M	187	—	Acquired	19620.132	Direct
2019-12-06	Common Stock	M	336	—	Acquired	19956.132	Direct
2019-12-06	Common Stock	F	947	$108.22	Disposed	19009.132	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-12-06	Restricted Stock Unit	$	M	120	Disposed		Common Stock (120)	Direct
2019-12-06	Restricted Stock Unit	$	M	145	Disposed		Common Stock (145)	Direct
2019-12-06	Restricted Stock Unit	$	M	159	Disposed		Common Stock (159)	Direct
2019-12-06	Restricted Stock Unit	$	M	187	Disposed		Common Stock (187)	Direct
2019-12-06	Restricted Stock Unit	$	M	336	Disposed		Common Stock (336)	Direct

Footnotes

F1: Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

F2: Shares used to satisfy FICA taxes.

F3: Portion of 2017 RSU Award accelerated to satisfy FICA taxes.

F4: Portion of 2018 RSU Award accelerated to satisfy FICA taxes.

F5: Portion of 2019 RSU Award accelerated to satisfy FICA taxes.