MKS INC — Director's Dealing 2020

Jul 24, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2020-07-22

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-07-22	Common Stock	S	5	$123.00	Disposed	24164.423	Direct
2020-07-23	Common Stock	S	2062	$123.57	Disposed	22102.423	Direct
2020-07-23	Common Stock	S	1493	$125.088	Disposed	20609.423	Direct
2020-07-23	Common Stock	S	1440	$126.07	Disposed	19169.423	Direct

Footnotes

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

F2: This transaction was executed in multiple trades at prices ranging from $123.32 to $123.79. 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.

F3: This transaction was executed in multiple trades at prices ranging from $124.52 to $125.46. 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.

F4: This transaction was executed in multiple trades at prices ranging from $125.68 to $126.51. 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.