Mks Inc DEFA14A, filed Mar 27, 2020

Mks Inc (MKSI)

DEFA14A 2020-03-27

Added on October 19, 2026


☐	Preliminary Proxy Statement

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☐	Definitive Proxy Statement

☑	Definitive Additional Materials

☐	Soliciting Material Pursuant to §240.14a-12

MKS Instruments, Inc.
(Name of Registrant as Specified in its Charter)

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MKS INSTRUMENTS, INC.	Meeting Information
	Meeting Type:	Annual Meeting
	For holders as of:	March 4, 2020
	Date: May 12, 2020 Time: 10:00 AM, Eastern Time
	Location: MKS Instruments, Inc.
	2 Tech Drive, Suite 201
	Andover, MA 01810
MKS INSTRUMENTS, INC. 2 TECH DRIVE SUITE 201 ANDOVER, MA 01810
	You are receiving this communication because you hold shares in the company named above.
	This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
	We encourage you to access and review all of the important information contained in the proxy materials before voting.
	See the reverse side of this notice to obtain proxy materials and voting instructions.



		The Board of Directors recommends you vote FOR the following:

		1.		The election of the two nominees listed below as Class III Directors, each to serve for a three-year term:

				Nominees:

				01) Joseph B. Donahue
				02) Janice K. Henry

		The Board of Directors recommends you vote FOR the following proposal:

		2.		The approval, on an advisory basis, of executive compensation.

		The Board of Directors recommends you vote FOR the following proposal:

		3.		The ratification of the selection of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the year ending December 31, 2020.

		NOTE: To transact such other business as may properly come before the meeting and any adjournment or postponement of the meeting.


		Voting Items