MKS INC — Director's Dealing 2020

Jan 28, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2020-01-27

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

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-01-27	Restricted Stock Unit	$	A	9197.167	Acquired		Common Stock (9197.167)	Direct

Footnotes

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

F2: These RSUs were subject to performance criteria, achievement of which was determined on January 27, 2020 and thereafter vest in three equal annual installments beginning on February 15, 2020, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.