<SEC-DOCUMENT>0001193125-18-160486.txt : 20180511
<SEC-HEADER>0001193125-18-160486.hdr.sgml : 20180511
<ACCEPTANCE-DATETIME>20180511121103
ACCESSION NUMBER:		0001193125-18-160486
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20180509
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180511
DATE AS OF CHANGE:		20180511

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MKS INSTRUMENTS INC
		CENTRAL INDEX KEY:			0001049502
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		IRS NUMBER:				042277512
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23621
		FILM NUMBER:		18825859

	BUSINESS ADDRESS:	
		STREET 1:		2 TECH DRIVE
		STREET 2:		SUITE 201
		CITY:			ANDOVER
		STATE:			MA
		ZIP:			01810
		BUSINESS PHONE:		978-645-5500

	MAIL ADDRESS:	
		STREET 1:		2 TECH DRIVE
		STREET 2:		SUITE 201
		CITY:			ANDOVER
		STATE:			MA
		ZIP:			01810
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d583849d8k.htm
<DESCRIPTION>8-K
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<HTML><HEAD>
<TITLE>8-K</TITLE>
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 <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>WASHINGTON, D.C. 20549 </B></P> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">8-K</FONT> </B></P> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>CURRENT
REPORT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Pursuant to Section&nbsp;13 or 15(d) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>of the Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Date of Report (Date of Earliest Event Reported): May&nbsp;9, 2018 </B></P>
<P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>MKS Instruments, Inc. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name of registrant as specified in its charter) </B></P> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B>Massachusetts</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">000-23621</FONT></B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">04-2277512</FONT></B></TD></TR>
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<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of incorporation)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Commission</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>File Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(I.R.S. Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR>
</TABLE> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>2 Tech Drive, Suite 201, Andover,</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Massachusetts</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center"><B>01810</B></TD></TR>
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<TD VALIGN="top" ALIGN="center"><B>(Address of principal executive offices)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(Zip Code)</B></TD></TR>
</TABLE> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code: <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">978-645-5500</FONT></FONT> </B></P> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Not Applicable </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Former name or former address, if changed since last report </B></P>
<P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Check the appropriate box below if the Form <FONT STYLE="white-space:nowrap">8-K</FONT> filing is intended to simultaneously satisfy the filing obligation of
the registrant under any of the following provisions: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Soliciting material pursuant to Rule <FONT STYLE="white-space:nowrap">14a-12</FONT> under the Exchange Act (17 CFR <FONT STYLE="white-space:nowrap">240.14a-12)</FONT> </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT STYLE="white-space:nowrap">14d-2(b)</FONT> under the Exchange Act (17 CFR
<FONT STYLE="white-space:nowrap">240.14d-2(b))</FONT> </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT STYLE="white-space:nowrap">13e-4(c)</FONT> under the Exchange Act (17 CFR
<FONT STYLE="white-space:nowrap">240.13e-4(c))</FONT> </TD></TR></TABLE> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is an emerging growth company as
defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule <FONT STYLE="white-space:nowrap">12b-2</FONT> of the Securities Exchange Act of 1934 <FONT STYLE="white-space:nowrap">(&#167;240.12b-2</FONT> of this chapter).
</P> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Emerging growth company&nbsp;&nbsp;&#9744; </P> <P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">If an emerging
growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section&nbsp;13(a) of the Exchange
Act.&nbsp;&nbsp;&#9744; </P> <P STYLE="font-size:8pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain
Officers; Compensatory Arrangements of Certain Officers. </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) On May&nbsp;9, 2018, MKS Instruments, Inc. (the &#147;Company&#148;)
entered into a Transition and Retirement Agreement (the &#147;Transition and Retirement Agreement&#148;) with John R. Abrams, Senior Vice President of Global Sales of the Company, pursuant to which Mr.&nbsp;Abrams will retire on February&nbsp;28,
2019 (the &#147;Retirement Date&#148;). Until his Retirement Date, Mr.&nbsp;Abrams will continue to serve as Senior Vice President of Global Sales until he is requested by the Company&#146;s Chief Executive Officer to transition to an advisor role
at the Company in order to facilitate the orderly transition of his duties. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">See item (e)&nbsp;below for a description of the Transition
and Retirement Agreement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)(c) On May&nbsp;9, 2018, the Board of Directors of the Company appointed John T.C. Lee as President of the
Company. Dr.&nbsp;Lee will continue to serve as Chief Operating Officer of the Company. Gerald G. Colella, who served as President of the Company until Dr.&nbsp;Lee&#146;s appointment, will remain Chief Executive Officer of the Company. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Dr.&nbsp;Lee, age 55, joined the Company in October 2007. Most recently, he served as the Company&#146;s Senior Vice President and Chief
Operating Officer from November 2016 until May 2018. Prior to that, he served as Senior Vice President of Business Units from January 2014 to October 2016. From November 2012 until December 2013, Dr.&nbsp;Lee served as our Senior Vice President,
Controls, HPS (our integrated process solutions business), and Pressure, Flow, Measurement and Control, or PFMC. From January 2011 to November 2012, he served as Senior Vice President, Controls and PFMC, and from October 2007 to January 2011, he
served as our Group Vice President, Controls and Information Technology products. Prior to joining MKS, Dr.&nbsp;Lee served as the Managing Director of Factory Technology and Projects within the Solar Business Group at Applied Materials, Inc., a
global leader providing processing equipment to the semiconductor and display markets, from February 2007 until October 2007. From 2002 until 2007, he served as General Manager of the Cleans Product Group and the Maydan Technology Center at Applied
Materials. Prior to Applied Materials, Dr.&nbsp;Lee served from 1997 until 2002 as Research Director of the Silicon Fabrication Research Department at Lucent Technologies, Inc., a voice, data and video communications provider, and from 1991 until
1997 as a Member of the Technical Staff in the Plasma Processing Research Group within Bell Labs. Dr.&nbsp;Lee holds a B.S. from Princeton University and both an M.S.C.E.P. and a Ph.D. from the Massachusetts Institute of Technology, all in Chemical
Engineering. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">There are no arrangements or understandings between Dr.&nbsp;Lee and any other persons pursuant to which Dr.&nbsp;Lee was
named President of the Company. There are also no family relationships between Dr.&nbsp;Lee and any director or executive officer of the Company and Dr.&nbsp;Lee has no direct or indirect interest in any transaction or proposed transaction required
to be disclosed pursuant to Item 404(a) of Regulation <FONT STYLE="white-space:nowrap">S-K.</FONT> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">See item (e)&nbsp;below for
information regarding the Employment Agreement entered into in connection with Dr.&nbsp;Lee&#146;s promotion. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)
<B><U>Mr.</U></B><B><U></U></B><B><U>&nbsp;Abrams&#146; Retirement</U></B> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Mr.&nbsp;Abrams&#146; Transition and Retirement Agreement
supersedes and replaces the Employment Agreement Mr.&nbsp;Abrams entered into with the Company effective August&nbsp;1, 2016. The Transition and Retirement Agreement provides for the continuation of base salary and benefits through his Retirement
Date; provided, however, his salary will be reduced on a pro rata basis (not below 50%) if his role as an advisor results in a significant reduction in his hours of service. Mr.&nbsp;Abrams will also be entitled to continue to participate in the
Company&#146;s annual Management and Key Employee Bonus Plan until he transitions to the role of advisor. In addition, Mr.&nbsp;Abrams is entitled to a retention payment of $830,000 (the &#147;Retention Payment&#148;) to be paid within 60 days after
his Retirement Date, provided he has complied with all of his obligations under the Transition and Retirement Agreement, including, but not limited to, the execution (and no subsequent revocation) of a customary general release of claims. The
payments to Mr.&nbsp;Abrams are also subject to compliance with confidentiality and <FONT STYLE="white-space:nowrap">non-competition</FONT> obligations and other covenants. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Mr.&nbsp;Abrams is also entitled to the Retention Payment should his employment be terminated by the Company without Cause (as defined below)
prior to the Retirement Date, provided he has complied with all of his obligations under the Transition and Retirement Agreement. For purposes of the Transition and Retirement Agreement, Cause shall mean: (i)&nbsp;the commission of a felony or the
engagement in fraud, misappropriation or embezzlement, (ii)&nbsp;knowingly failing or refusing to perform his duties in a material way and, to the extent that the Company determines such failure or refusal can reasonably be cured, fails or refuses
to effect a cure within 10 days after the Company notifies Mr.&nbsp;Abrams in writing of the failure or refusal; (iii)&nbsp;knowingly causing, or knowingly creating a serious risk of causing, material harm to the Company&#146;s business or
reputation; or (iv)&nbsp;breaching, in a </P>

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material way, the Transition and Retirement Agreement, a confidential information agreement or any other agreement between Mr.&nbsp;Abrams and the Company, and, to the extent that the Company
determines such breach can reasonably be cured, fails or refuses to effect a cure within 10 days after the Company notifies Mr.&nbsp;Abrams in writing of the breach. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The foregoing description of the Transition and Retirement Agreement is qualified in its entirety by reference to the complete copy of the
Transition and Retirement Agreement attached hereto as Exhibit 10.1 and incorporated by reference herein. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman"><B><U>Dr.</U><U></U><U>&nbsp;Lee&#146;s Appointment as President</U> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">In connection with Dr.&nbsp;Lee&#146;s promotion to President of the Company effective May&nbsp;9, 2018, the Company entered into a new
employment agreement with Dr.&nbsp;Lee, effective May&nbsp;9, 2018 (the &#147;Employment Agreement&#148;), pursuant to which Dr.&nbsp;Lee&#146;s salary was increased from $541,000 to $545,000. All other material terms of the Employment Agreement,
including those relating to severance benefits, change of control and <FONT STYLE="white-space:nowrap">non-competition,</FONT> are the same as those in the employment agreement Dr.&nbsp;Lee previously entered into with the Company effective
August&nbsp;1, 2016, which terms are disclosed in the Company&#146;s Proxy Statement filed with the SEC on March&nbsp;28, 2018. In addition, the Compensation Committee of the Board of Directors of the Company increased Dr.&nbsp;Lee&#146;s annual
cash bonus target from 90% to 95% and awarded Dr.&nbsp;Lee the following restricted stock unit awards: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">Time-Based Restricted Stock Unit
Award<SUP STYLE="font-size:85%; vertical-align:top">1</SUP>: $87,500 </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">Performance-Based Restricted Stock Unit Award at target<SUP
STYLE="font-size:85%; vertical-align:top">1</SUP>: $87,500 </P> <P STYLE="line-height:8.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:10%">&nbsp;</P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left">(1)</TD>
<TD ALIGN="left" VALIGN="top">The restricted stock units are subject to the terms and conditions of the Company&#146;s 2014 Stock Incentive Plan. The restricted stock units are awarded effective May&nbsp;9, 2018 based on the Nasdaq closing price of
the Company&#146;s Common Stock on May&nbsp;9, 2018, and shall vest in three equal annual installments beginning on February&nbsp;15, 2019, subject to any performance criteria as set forth in the restricted stock unit agreement (provided in each
case that if February 15 is not a business day, such granting or vesting shall occur on the next business day). The value of the performance-based restricted stock unit award is capped at 150% of the target award. </TD></TR></TABLE>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;5.07 Submission of Matters to a Vote of Security Holders. </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The following sets forth the results of voting by shareholders at the 2018 Annual Meeting held on May&nbsp;9, 2018: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left">a)</TD>
<TD ALIGN="left" VALIGN="top">Election of two Class&nbsp;I Directors to serve for a three-year term and until their successors are elected: </TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:57.90pt; display:inline; font-size:8pt; font-family:Times New Roman; ">Director Nominee</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000">Votes For</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000">Votes&nbsp;Withheld</TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Gerald G. Colella</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">47,206,959</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">780,212</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Elizabeth A. Mora</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">47,552,724</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">434,447</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">There were broker <FONT STYLE="white-space:nowrap">non-votes</FONT> of 2,600,135 shares on this proposal. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">b)</TD>
<TD ALIGN="left" VALIGN="top">Approval of compensation paid to the Company&#146;s Named Executive Officers, as disclosed pursuant to the compensation disclosure rules of the Securities and Exchange Commission, including the Compensation Discussion
and Analysis, the compensation tables and any related material disclosed in the Proxy Statement for this meeting: </TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


<TR>
<TD WIDTH="34%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="32%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="32%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman">Votes For</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Votes&nbsp;Against</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Votes&nbsp;Abstained</P></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">44,873,408</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">2,861,771</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">251,992</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">There were broker <FONT STYLE="white-space:nowrap">non-votes</FONT> of 2,600,135 shares on this proposal. </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c)</TD>
<TD ALIGN="left" VALIGN="top">Ratification of the appointment of PricewaterhouseCoopers LLP as the Company&#146;s independent registered public accounting firm for the year ending December&nbsp;31, 2018: </TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


<TR>
<TD WIDTH="34%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="32%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="32%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman">Votes For</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Votes&nbsp;Against</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Votes&nbsp;Abstained</P></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">49,381,208</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">1,171,382</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">34,716</TD></TR>
</TABLE>

<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">There were no broker <FONT STYLE="white-space:nowrap">non-votes</FONT> for this proposal. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;7.01 Regulation FD Disclosure </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On May&nbsp;9, 2018, the Company issued a press release announcing the appointment of John T.C. Lee as President of the Company effective
May&nbsp;9, 2018. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form <FONT STYLE="white-space:nowrap">8-K</FONT> and is hereby incorporated by reference into this Item 7.01. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;9.01 Financial Statements and Exhibits. </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(d)
Exhibits </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD></TD>
<TD VALIGN="bottom" WIDTH="7%"></TD>
<TD WIDTH="90%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:39.10pt; display:inline; font-size:8pt; font-family:Times New Roman; "><B>Exhibit&nbsp;No.</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman"><B>Description</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d583849dex101.htm">Transition and Retirement Agreement, dated May&nbsp;9, 2018, between the Company and John R. Abrams </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.2</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d583849dex102.htm">Employment Agreement, effective May&nbsp;9, 2018, between the Company and John Lee </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>99.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d583849dex991.htm">Press Release dated May&nbsp;9, 2018 </A></TD></TR>
</TABLE>

<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><U>Top of the Form </U></B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURES </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="46%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="4%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="2%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="45%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3">MKS Instruments, Inc.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">May&nbsp;11, 2018</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Kathleen F. Burke</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name: Kathleen F. Burke</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title: Senior Vice President, General Counsel&nbsp;&amp; Asst. Secretary</TD></TR>
</TABLE>
</BODY></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>d583849dex101.htm
<DESCRIPTION>EX-10.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-10.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 10.1 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>TRANSITION AND RETIREMENT AGREEMENT </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MKS Instruments, Inc., a Massachusetts corporation (the&nbsp;&#147;Company&#148;), and John R. Abrams of Lowell, MA (&#147;Employee&#148;)
(collectively, the &#147;Parties&#148;) agree, effective May&nbsp;9, 2018, as follows: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, Employee is currently employed by the
Company as the Senior Vice President of Global Sales and is a party to an employment agreement with the Company effective August&nbsp;1, 2016 (the &#147;2016 Employment Agreement&#148;); </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, Employee has informed the Company that he wishes to retire on February&nbsp;28, 2019 (the &#147;Retirement Date&#148;); </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the Company desires to retain Employee in order to facilitate the orderly transition of his duties, and Employee has agreed to
continue his employment and provide transition assistance to the Company for a period of time until his Retirement Date on the terms described below; and </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, Employee and the Company desire to enter into this Transition and Retirement Agreement (the &#147;Transition and Retirement
Agreement&#148; or &#147;Agreement&#148;), effective as of the date set forth above, which Transition and Retirement Agreement shall supersede and replace the 2016 Employment Agreement between the Parties, except as noted in Section&nbsp;12 of this
Agreement; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">NOW, THEREFORE, the Parties agree as follows: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1. <B>Employment.</B> The Company will continue to employ Employee and Employee will serve on an
<FONT STYLE="white-space:nowrap">at-will</FONT> basis, subject to the terms and conditions set forth below. Employee will continue to perform his regular duties as Senior Vice President of Global Sales for such period as shall be requested by the
Chief Executive Officer of the Company (&#147;CEO&#148;). At the request of the CEO, Employee shall transition to Advisor, in which capacity he shall provide transition assistance duties that include, but are not limited to, transitioning his
responsibilities for key customers and his other duties to the Company&#146;s designee. Employee&#146;s employment with the Company will end on the Retirement Date. Employee agrees to continue to comply with the Company&#146;s policies at all times
while Employee remains an employee of the Company, as well as thereafter as set forth in this Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2. <B>Confidential Information
Agreement.</B> The MKS Instruments, Inc. Confidential Information, Intellectual Property and <FONT STYLE="white-space:nowrap">Non-Solicitation</FONT> Agreement (the &#147;Confidential Information Agreement&#148;) dated July&nbsp;29, 2016 shall
remain in effect for the remainder of Employee&#146;s employment with the Company and after the Employee&#146;s employment ends as set forth in the Confidential Information Agreement. </P>

<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3. <B>Duty to The Company</B>. While employed by the Company, Employee: (a)&nbsp;will devote his
or her full working time (to the extent requested by the CEO), and will devote his best efforts, to performing his duties hereunder and in promoting the business of the Company; and (b)&nbsp;will not (without the prior, express, written consent of
the CEO) engage in any other business activity (whether or not for gain). Notwithstanding the previous sentence, this Transition and Retirement Agreement does not prohibit Employee from managing his or her personal investments or engaging in
charitable and unpaid professional activities (including serving on charitable and professional boards), so long as doing so does not materially interfere with Employee&#146;s work for the Company or violate Section&nbsp;7 of this Agreement. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4. <B>Compensation.</B> </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a)
<B>Base Salary.</B> The Company will pay Employee a base salary at the rate of $394,000 per year (the &#147;Base Salary&#148;), in accordance with the Company&#146;s normal payroll practices. The Company may review and adjust the amount of the Base
Salary from time to time in its sole discretion. The parties intend that, if Employee&#146;s role as Advisor results in a significant reduction in his hours of service to the Company, Executive&#146;s Base Salary will be adjusted on a pro rata basis
(but not below 50%) to reflect such reduction in hours. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) <B>Incentive Compensation Plan.</B> Prior to becoming an Advisor, Employee
will be entitled to participate in the Company&#146;s Annual Corporate Management/Key Employee Bonus Plan, to the extent applicable to Employee&#146;s position. Upon becoming an Advisor, Employee will no longer participate in the Company&#146;s
Annual Corporate Management/Key Employee Bonus Plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) <B>Stock Incentive Plan.</B> Employee will not be eligible for new equity awards
under the Company&#146;s 2014 Stock Incentive Plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) <B>Benefits.</B> While employed by the Company (including while serving as an
Advisor), Employee will continue to be eligible to receive the employment benefits that he is currently receiving unless otherwise stated in this Transition and Retirement Agreement. Employee&#146;s participation in the Company&#146;s generally
available employee benefit plans, which currently include medical, dental, vision, life, accidental death and dismemberment, short-term disability and long-term disability insurance, a 401(k) savings plan and an employee stock purchase plan, is
subject to the terms and conditions of each plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) <B>Paid Time Off. </B>Employee will be eligible for 18 days of paid vacation per
year, plus paid sick time and holidays, all subject to the terms and conditions of the Company&#146;s policies. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(f) <B>Expenses.</B> For
the remainder of his employment, the Company will reimburse Employee for expenses Employee reasonably incurs in performing his or her duties, to the extent provided in the Company&#146;s expense reimbursement policies. Reimbursement of expenses in
one tax year will not affect reimbursement of expenses in any other tax year. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(g) <B>Retention Payment.</B> If (i)&nbsp;Employee retires on his Retirement Date and has
complied with all of Employee&#146;s obligations under this Transition and Retirement Agreement and the Confidential Information Agreement throughout the term of this Agreement, and (ii)&nbsp;Employee executes, provides to the Company within 45 days
after the Retirement Date and does not thereafter revoke or attempt to revoke, a general release of claims in a form satisfactory to the Company (&#147;General Release&#148;), the Company shall make a single lump sum retention award payment to
Employee equal to $830,000 (the &#147;Retention Payment&#148;) within 60 days after the Retirement Date. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5. <B>End of Employment.</B>
Either Employee or the Company may end the employment relationship at any time, for any reason, with or without notice or cause. The employment relationship will end automatically and immediately upon the earliest of the Retirement Date or
Employee&#146;s death or entitlement to long-term disability benefits under the Company&#146;s long-term disability program. The date on which Employee&#146;s employment ends for any reason is referred to in this Agreement as the &#147;Employment
End Date.&#148; If Employee resigns prior to the Retirement Date or the Company terminates Employee&#146;s employment, the Company will (in either case) have the right at any time and for any reason in its sole discretion to decide the Employment
End Date. In no event will the Company&#146;s deciding the Employment End Date following Employee&#146;s notice of resignation prior to the Retirement Date be considered a resignation and not a notice of termination by the Company of Employee&#146;s
employment. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6. <B>Company Obligations Upon End of Employment. </B>When the employment relationship ends, the Company will have no
obligation to pay or provide Employee at any time any compensation, payment or benefit of any kind, except as expressly provided in Sections 6(a) and (b)&nbsp;below. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) <B>Minimum Obligations</B>.<B> </B>When the employment relationship ends, no matter how it ends: (i)&nbsp;the Company will pay Employee any
unpaid Base Salary through the Employment End Date; (ii)&nbsp;Employee will be entitled to accrued, vested benefits under the Company&#146;s benefit plans and programs to the extent provided in Section&nbsp;4(d); (iii) the Company will pay Employee
for any accrued but unused vacation; and (iv)&nbsp;the Company will reimburse Employee for any unreimbursed expenses incurred through the Employment End Date to the extent provided in Section&nbsp;4 (f). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) <B>Certain Terminations by Company Prior to Retirement Date</B>. In addition to the minimum obligations set forth in paragraph
(a)&nbsp;above, the Company shall make a single lump sum payment to Employee equal to the Retention Payment that would otherwise apply under Section&nbsp;4(g) above within 60 days after the Employment End Date, if and only if all of the following
conditions are satisfied: (i)&nbsp;The Company terminates Employee&#146;s employment without &#147;Cause&#148; (as defined below) prior to the Retirement Date and the Retention Payment in Section&nbsp;4(g) does not apply; (ii)&nbsp;Employee has not
resigned or provided notice of resignation prior to the Retirement Date, and has not died or become disabled as defined in Section&nbsp;216(i)(1) of the U.S. Social Security Act; (iii)&nbsp;Employee has complied with and continues to comply with all
of Employee&#146;s obligations under this Transition and Retirement Agreement and the Confidential Information Agreement; and (iv)&nbsp;Employee executes, provides to the Company within 45 days after the Employment End Date and does not thereafter
revoke or attempt to revoke, a General Release. The Company&#146;s good-faith determination that one or more of the conditions listed above has not been satisfied will be binding and conclusive. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>


<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">(c) <B>&#147;</B>Cause<B>.&#148;</B> &#147;Cause&#148; to terminate Employee&#146;s employment
will exist if Employee: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">(i) commits a felony or engages in fraud, misappropriation or embezzlement; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">(ii) knowingly fails or refuses to perform Employee&#146;s duties in a material way and, to the extent that the Company determines such failure
or refusal can reasonably be cured, fails or refuses to effect a cure within 10 days after the Company notifies Employee in writing of the failure or refusal; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">(iii) knowingly causes, or knowingly creates a serious risk of causing, material harm to the Company&#146;s business or reputation; or </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">(iv) breaches, in a material way, this Transition and Retirement Agreement, the Confidential Information Agreement or any other agreement
between Employee and the Company, and, to the extent that the Company determines such breach can reasonably be cured, fails or refuses to effect a cure within 10 days after the Company notifies Employee in writing of the breach. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7. <B><FONT STYLE="white-space:nowrap">Non-Competition</FONT></B>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) During Employee&#146;s MKS Employment (as defined below) and for 12&nbsp;months immediately thereafter (together, the <FONT
STYLE="white-space:nowrap">&#147;Non-Compete</FONT> Period&#148;), Employee will not engage in or otherwise carry on, directly or indirectly anywhere in the world (as principal, agent, employee, employer, investor, shareholder (except for holdings
of no greater than 1% of the total outstanding shares in a publicly-traded company), consultant, partner, member, manager, financier or in any other individual or representative capacity of any kind whatsoever), any Competitive Activity
(as&nbsp;defined below). </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) &#147;MKS Employment&#148; means the period beginning on the first day that Employee is employed by the
Company and ending on the first day on which Employee is no longer employed by any MKS Entity (as defined below). </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) &#147;MKS
Entity&#148; means (i)&nbsp;the Company; (ii)&nbsp;any current or future parent, subsidiary or affiliate of the Company; or (iii)&nbsp;any successor or assign of (i)&nbsp;or (ii). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) &#147;Competitive Activity&#148; means business or activity competitive with an MKS Entity but only to the extent that business or activity
is related to, similar to or competitive with the activities of the business unit(s), division(s), laborator(y)(ies), facilit(y)(ies) and other operational unit(s) in or for which Employee performed work for an MKS Entity or about which Employee
acquired Proprietary Information (as defined in the Confidential Information Agreement). </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) The <FONT STYLE="white-space:nowrap">Non-Compete</FONT> Period will be extended for any
period during which Employee is in breach of this Transition and Retirement Agreement or the Confidential Information Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(f) If
any court of competent jurisdiction determines that this Section&nbsp;7 is unenforceable because the <FONT STYLE="white-space:nowrap">Non-Compete</FONT> Period is too long or because Competitive Activity includes too great a range of activities or
too wide a geographic scope, the parties agree that this Section&nbsp;7 should be interpreted to extend only over the maximum period of time or range of activities or geographic scope as to which it may be enforceable. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(g) The post-employment restrictions on Employee&#146;s conduct contained in this Transition and Retirement Agreement and in the Confidential
Information Agreement: (i)&nbsp;will continue to apply even if Employee&#146;s duties, title, compensation, location or other terms or conditions of employment change, and even if such change or changes are material; and (ii)&nbsp;will apply
regardless of how or why Employee&#146;s employment ends. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(h) The Company and Employee agree that violation by Employee of any of the
provisions of this Section&nbsp;7 of this Transition and Retirement Agreement would cause the Company irreparable harm beyond what could reasonably or adequately be compensated in damages, and that the Company would therefore be entitled (in
addition to the Company&#146;s other remedies) to an injunction, declaratory judgment or restraining order against any such violation or threatened violation. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">8. <B>Code Section</B><B></B><B>&nbsp;409A Compliance</B>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) Where this Transition and Retirement Agreement refers to Employee&#146;s termination of employment for purposes of receiving any payment,
whether such a termination has occurred will be determined in accordance with Section&nbsp;409A of the Internal Revenue Code (the &#147;Code&#148;) and Treasury Regulation <FONT STYLE="white-space:nowrap">Section&nbsp;1.409A-1(h)</FONT> (or any
successor provisions) to the extent required by law. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) To the extent that benefits under this Agreement are contingent upon Employee
providing a General Release, Employee will sign and return the General Release within the reasonable time period designated by the Company, which will not be more than 45 days. If the period for Employee to review a General Release plus any
revocation period crosses calendar years, payments contingent upon the Release will be made in the later calendar year. Any payments contingent upon the General Release that would otherwise be made during the period for review and revocation of the
General Release will be made, provided that the General Release is timely executed and returned to the Company and not revoked, on the first scheduled payment date after such period ends. Each payment in respect of Employee&#146;s termination of
employment under Section&nbsp;6 of the Transition and Retirement Agreement is designated as a separate payment for Section&nbsp;409A purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) If Employee is designated as a &#147;Specified Employee&#148; within the meaning of Code
Section&nbsp;409A (while the Company is publicly traded), any deferred compensation payment subject to Section&nbsp;409A to be made during the <FONT STYLE="white-space:nowrap">six-month</FONT> period following Employee&#146;s termination of
employment will be withheld and the amount of the payments withheld will be paid in a lump sum, without interest, during the seventh month after Employee&#146;s termination; provided, however, that if Employee dies prior to the expiration of such
six month period, payment to Employee&#146;s beneficiary will be made as soon as reasonably practicable following Employee&#146;s death. The Company will identify in writing delivered to Employee any payments it reasonably determines are subject to
delay under this Section&nbsp;8(c). In no event will the Company have any liability or obligation with respect to taxes for which Employee may become liable as a result of the application of Code Section&nbsp;409A. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">9. <B>Withholding.</B> The Company will deduct from the amounts payable to Employee pursuant to this Transition and Retirement Agreement all
withholding amounts and deductions required by law or authorized by Employee. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">10. <B>Changes to Plans and Policies.</B> Nothing in this
Transition and Retirement Agreement will: (a)&nbsp;require the Company or its affiliates to establish, maintain or continue any incentive compensation plan, stock incentive plan or other benefit plan, policy or arrangement; (b)&nbsp;restrict the
right of the Company or any of its affiliates to amend, modify or terminate any such plan, policy or arrangement; (c)&nbsp;entitle Employee to participate in any such plan policy or arrangement at any specified level (or at all) in any year; or
(d)&nbsp;prevent any future change to any such plan, policy or arrangement from applying to Employee in accordance with the terms of the change. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">11. <B>Assignment</B>. The rights and obligations of the Company under this Transition and Retirement Agreement will inure to the benefit of,
and be binding upon, the Company&#146;s successors and assigns. The rights and obligations of Employee under this Transition and Retirement Agreement will inure to the benefit of, and will be binding upon, Employee&#146;s heirs, executors and legal
representatives. Employee may not delegate or assign any obligations under this Transition and Retirement Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">12. <B>Entire
Agreement and Severability</B>. This Transition and Retirement Agreement supersedes and replaces any and all other agreements, either oral or in writing, between Employee and the Company with respect to the Company&#146;s employment of Employee
(including the Employment Agreement between the Company and the Employee that became effective on August&nbsp;1, 2016), with the exception of (i)&nbsp;the Confidential Information Agreement, which remains in effect as set forth in Section&nbsp;3
above; and (ii)&nbsp;the Restricted Stock Unit Agreements under the Company&#146;s 2014 Stock Incentive Plan, entered into by Employee on each of February&nbsp;15, 2016, February&nbsp;15, 2017, and February&nbsp;15, 2018 (collectively, the &#147;RSU
Agreements&#148;), awards under which shall vest or be forfeited in accordance with the terms of such respective agreements. This Transition and Retirement Agreement, the Confidential Information Agreement and
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
the RSU Agreements contain all of the covenants and agreements between the parties with respect to such employment. Neither party is entering into this Transition and Retirement Agreement on the
basis of any representation, inducement, promise or agreement, oral or otherwise, by any party, or by any one acting on behalf of any party, which is not stated herein. Any modification of this Agreement will be effective only if it is in writing
and signed by both Parties. If any provision in this Agreement is held by a court of competent jurisdiction to be invalid, void or unenforceable, the remaining provisions will nevertheless continue in full force and effect without being impaired or
invalidated in any way. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">13. <B>Miscellaneous</B>. This Transition and Retirement Agreement and the rights and obligations of the parties
hereunder will be governed by, and construed in accordance with, the laws of the Commonwealth of Massachusetts, excluding (but only to the extent permitted by law) its conflict of laws and choice of law rules. The Parties agree that service of any
process, summons, notice or document by U.S. certified mail or overnight delivery by a generally recognized commercial courier service to Employee&#146;s last known address (or any mode of service recognized to be effective by applicable law) will
be effective service of process for any action, suit or proceeding brought against Employee. The failure of either party hereto to enforce any right under this Agreement will not be considered a waiver of that right, or of damages caused thereby, or
of any other rights under this Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">14. <B>Assistance</B>. Employee promises to assist the Company with any investigation or legal
claim relating to his employment by making himself available upon reasonable notice for interviews or testimony. If Employee&#146;s cooperation requires him to incur expenses, the Company will provide reimbursement if Employee provides appropriate
documentation of the expenses. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">15. <B>Arbitration and Waiver of Jury Trial</B>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) Any &#147;Legal Dispute&#148; (as defined below) between Employee and any MKS Entity (or&nbsp;between Employee and any employee or agent of
any MKS Entity, to the extent directly or indirectly arising from or relating in any way to Employee&#146;s employment with or separation from the Company) will be resolved by final and binding arbitration. Notwithstanding the foregoing sentence,
the Company may, in its sole discretion, obtain preliminary injunctive relief enforcing the provisions of the Confidential Information Agreement or Section&nbsp;7 of this Transition and Retirement Agreement from any court of competent jurisdiction.
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) &#147;Legal Dispute&#148; means a dispute about legal rights or legal obligations, including but not limited to any rights or
obligations arising under this Transition and Retirement Agreement; the Confidential Information Agreement; any other agreement; any applicable legal or equitable doctrine; any applicable common law theory; or any applicable federal, state or local,
statute, regulation or other legal requirement. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) The arbitration will be held in the Commonwealth of Massachusetts. It will be conducted in
accordance with the then-prevailing Employment Arbitration Rules of the American Arbitration Association. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) Notwithstanding any other
provision of this Transition and Retirement Agreement or any other agreement or of any arbitration rules, no Legal Dispute involving any MKS Entity may be included in any class or collective arbitration or any other class or collective proceeding.
The exclusive method for resolving any such Legal Dispute will be arbitration on an individual basis. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) Any issues about whether a
dispute is subject to arbitration will be determined by a court of competent jurisdiction and not by an arbitrator. Any issues about the meaning or enforceability of Section&nbsp;15(d) will be decided by a court of competent jurisdiction and not by
an arbitrator. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(f) The Company, Employee and the arbitrator will treat all aspects of the arbitration proceedings, including without
limitation, discovery, testimony and other evidence, briefs and the award, as strictly confidential, except that the arbitration award may be disclosed to the extent necessary to enforce the award, the provisions of the Confidential Information
Agreement or the provisions of this Transition and Retirement Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(g) Employee and the Company understand and acknowledge that by
agreeing to arbitrate the disputes covered by this Section&nbsp;15, they are waiving the right to resolve those disputes in court and waiving any right to a jury trial with respect to those disputes. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">16. <B>Knowing and Voluntary Agreement.</B> Employee acknowledges that this Transition and Retirement Agreement was provided to Employee at
least 7 days before its effective date. Employee understands that Employee has the right to consult counsel before signing this Agreement. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the parties hereto have executed, in the Commonwealth of Massachusetts, this Transition and Retirement Agreement as a
sealed instrument, all as of the day, month and year first written above. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="51%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="47%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">MKS INSTRUMENTS, INC.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By: <U>/s/ Catherine
Langtry&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Dated: May&nbsp;9, 2018</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name: Catherine Langtry</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title: Senior Vice President, Global Human Resources</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>


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<TD WIDTH="47%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"><U>/s/ John R.
Abrams&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Dated: May&nbsp;9, 2018</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">JOHN R. ABRAMS, EMPLOYEE</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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<FILENAME>d583849dex102.htm
<DESCRIPTION>EX-10.2
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 10.2 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>EMPLOYMENT AGREEMENT </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MKS Instruments, Inc., a Massachusetts corporation (the&nbsp;&#147;Company&#148;), and John Lee of Lexington, MA (&#147;Employee&#148;) agree,
effective May&nbsp;9, 2018, as follows. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1. <B>Employment.</B> The Company is employing Employee on an
<FONT STYLE="white-space:nowrap">at-will</FONT> basis in the position of President and Chief Operating Officer. Employee agrees to comply with the Company&#146;s policies. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2. <B>Confidential Information Agreement.</B> Employee will sign and deliver to the Company, at the same time that Employee executes this
Employment Agreement, the Confidential Information, Intellectual Property and <FONT STYLE="white-space:nowrap">Non-Solicitation</FONT> Agreement of MKS Instruments, Inc. (&#147;Confidential Information Agreement&#148;) that is Attachment 1 to this
Employment Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3. <B>Duty to The Company</B>. While employed by the Company, Employee: (a)&nbsp;will devote his or her full working
time and best efforts to the business of the Company; and (b)&nbsp;will not (without the prior, express, written consent of the Chief Executive Officer of the Company) engage in any business activity (whether or not for gain) that interferes with
Employee&#146;s work for the Company. Notwithstanding the previous sentence, this Employment Agreement does not prohibit Employee from managing his or her personal investments or engaging in charitable and unpaid professional activities (including
serving on charitable and professional boards), so long as doing so does not materially interfere with Employee&#146;s work for the Company or violate Section&nbsp;7 of this Employment Agreement. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4. <B>Compensation.</B> </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a)
<B>Base Salary.</B> The Company will pay Employee base salary at the rate of $545,000 per year (the &#147;Base Salary&#148;), in accordance with the Company&#146;s normal payroll practices. The Company may review and adjust the amount of the Base
Salary from time to time in its sole discretion. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) <B>Incentive Compensation Plan.</B> Employee will be entitled to participate in the
Company&#146;s Annual Corporate Management/Key Employee Bonus Plan, to the extent applicable to Employee&#146;s position. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) <B>Stock
Incentive Plan.</B> Employee will be entitled to participate in the Company&#146;s stock incentive plan to the extent applicable to Employee&#146;s position. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) <B>Benefits.</B> Employee will be eligible to participate in the Company&#146;s generally available employee benefit plans, which currently
include medical, dental, vision, life, accidental death and dismemberment, short-term disability and long-term disability insurance, a 401(k) savings plan and an employee stock purchase plan, subject to the terms and conditions of each plan. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) <B>Paid Time Off. </B>Employee will be eligible for 20 days of paid vacation per year, plus paid sick time and holidays, all subject to the
terms and conditions of the Company&#146;s policies. </P> <P STYLE="font-size:6pt; margin-top:0pt; margin-bottom:0pt">&nbsp;</P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(f) <B>Expenses.</B> The Company will reimburse Employee for expenses Employee reasonably incurs
in performing his or her duties, to the extent provided in the Company&#146;s expense reimbursement policies. Reimbursement of expenses in one tax year will not affect reimbursement of expenses in any other tax year. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5. <B>End of Employment</B>. Either Employee or the Company may end the employment relationship at any time, for any reason, with or without
notice or cause. The employment relationship will end automatically and immediately upon Employee&#146;s death or entitlement to long-term disability benefits under the Company&#146;s long-term disability program. The date on which Employee&#146;s
employment ends, whether as the result of a resignation by Employee, a termination of employment by the Company or an automatic termination of employment upon death or disability, is referred to in this Employment Agreement as the &#147;Employment
End Date.&#148; If Employee resigns or the Company terminates Employee&#146;s employment, the Company will (in either case) have the right at any time, for any reason in its sole discretion to decide the Employment End Date. In no event will the
Company&#146;s deciding the Employment End Date following Employee&#146;s resignation be considered termination by the Company of Employee&#146;s employment. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6. <B>Company Obligations Upon End of Employment. </B>When the employment relationship ends, the Company will have no obligation to pay or
provide Employee at any time any compensation, payment or benefit of any kind, except as expressly provided in Sections 6(a) though through 6(e) below. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) <B>Minimum Obligations.</B> When the employment relationship ends, no matter how it ends: (i)&nbsp;the Company will pay Employee any unpaid
Base Salary through the Employment End Date; (ii)&nbsp;Employee will be entitled to accrued, vested benefits under the Company&#146;s benefit plans and programs to the extent provided in Section&nbsp;4(d); (iii)&nbsp;the Company will pay Employee
for any accrued but unused vacation; and (iv)&nbsp;the Company will reimburse Employee for any unreimbursed expenses incurred through the Employment End Date to the extent provided in Section&nbsp;4(f). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) <B>30 Days&#146; Base Salary After Certain Resignations</B>. If Employee provides the Company at least 30 days&#146; advance written notice
of resignation of employment, is an active employee in good standing at the time of such notice and continues to perform his or her duties diligently and professionally to the extent requested thereafter, the Company will pay Employee his or her
Base Salary for at least 30 days after such notice, even if the Employment End Date is earlier. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) <B>30 Days&#146; Base Salary After
Certain Terminations</B>. If the Company terminates Employee&#146;s employment other than for Cause, as defined below, the Company will provide Employee with written notice of termination and pay Employee his or her Base Salary for at least 30 days
after such notice of termination, even if the Employment End Date is earlier. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) <B>Eligibility for Ordinary Severance Pay</B>. If the
Company terminates Employee&#146;s employment, Employee will be eligible for severance pay in a lump sum in an amount equal to a minimum of 6 months of Base Salary or two weeks of Base Salary per year of service, whichever is greater, in either case
provided that all of </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
the following conditions are satisfied: (i)&nbsp;the Company&#146;s primary reason for terminating Employee&#146;s employment was a change to the Company&#146;s business needs (such as reduction
in force or elimination of position) and not Cause as defined below; (ii)&nbsp;Employee has complied with and continues to comply with all of Employee&#146;s obligations under this Employment Agreement and the Confidential Information Agreement; and
(iii)&nbsp;Employee executes, provides to the Company within 45 days after the Employment End Date and does not thereafter revoke or attempt to revoke, a general release of claims in a form satisfactory to the Company (&#147;General Release&#148;).
The Company&#146;s good-faith determination that one or more of the conditions listed above has not been satisfied will be binding and conclusive. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) <B>Eligibility for Enhanced Severance Compensation.</B> Employee will become eligible for the &#147;Enhanced Severance Compensation,&#148;
as described below, instead of severance pay under Section&nbsp;6(d) above or under any other program or policy of the Company, if and only if all of the following conditions are satisfied: (i)&nbsp;the Company terminates Employee&#146;s employment
without &#147;Cause&#148; (as defined below) or Employee resigns for &#147;Good Reason&#148; (as defined below); (ii) the Employment End Date is within 24 months after the effective date of a Change in Control (as defined below); (iii) Employee has
complied with and continues to comply with all of Employee&#146;s obligations under this Employment Agreement and the Confidential Information Agreement; and (iv)&nbsp;Employee executes, provides to the Company within 45 days after the Employment
End Date and does not thereafter revoke or attempt to revoke, a General Release. The Company&#146;s good-faith determination that one or more of the conditions listed above has not been satisfied will be binding and conclusive. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) <B>&#147;Enhanced Severance Compensation.&#148;</B> If Employee becomes eligible for the Enhanced Severance Compensation: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) <B>Base Salary.</B> The Company will pay Employee, within 14 days after the General Release become irrevocable, a lump sum
in an amount equal to one and one half times annual Base Salary (determined without regard to any reduction in Base Salary giving rise to &#147;Good Reason,&#148; as defined below). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) <B>Incentive Compensation.</B> The Company will pay Employee, within 14 days after the General Release becomes
irrevocable, a lump sum equal to one and one half times the annual amount of incentive compensation for which Employee was eligible under any Incentive Compensation Plan of the Company then in effect for the year containing the Employment End Date.
Additionally, the Employee will receive a payment for target bonus, prorated for the current year. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) <B>Continuation
of Benefits.</B> For a period of 18 months after the Employment End Date, to the extent Employee elects to continue group medical, vision, or dental insurance coverage under COBRA and timely remits the amount of premium assessed to similarly
situated active employees for comparable coverage, the Company will pay the Company&#146;s usual share of such premiums. Benefits payable under this Section&nbsp;6(f)(iii) will terminate to the extent Employee ceases to be eligible for COBRA
coverage under the Company&#146;s medical benefits plan. Notwithstanding the foregoing, the Company will not pay the contribution toward COBRA coverage described above to the extent that the Company reasonably determines that doing so would subject
the Company to the excise tax under Section&nbsp;4980D of the Internal Revenue Code (the &#147;Code&#148;) (as a result of discriminatory coverage under a group health plan). </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) <B>Restricted Stock Units or Stock Appreciation Rights. </B>Employee&#146;s
unvested equity awards as of the Employment End Date will be subject to accelerated vesting to the extent provided in the respective equity award agreement issued to Employee under the then effective MKS Instruments, Inc. equity incentive plan
(including the MKS Instruments, Inc. 2014 Stock Incentive Plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vi) <B>No Obligation to Mitigate Damages; Effect on Other
Contractual Rights. </B>Employee will not be required to mitigate damages or the amount of any payment provided for under this Employment Agreement by seeking other employment or otherwise, nor will any payment provided for under this Employment
Agreement be reduced by any compensation earned by Employee as the result of employment by an employer other than the Company or a direct or indirect parent, subsidiary or affiliate of the Company after the Employment End Date, or otherwise. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) <B>&#147;Cause.&#148;</B> &#147;Cause&#148; to terminate Employee&#146;s employment will exist if Employee: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) commits a felony or engages in fraud, misappropriation or embezzlement; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) knowingly fails or refuses to perform Employee&#146;s duties in a material way and, to the extent that the Company
determines such failure or refusal can reasonably be cured, fails or refuses to effect a cure within 10 days after the Company notifies Employee in writing of the failure or refusal; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) knowingly causes, or knowingly creates a serious risk of causing, material harm to the Company&#146;s business or
reputation; or </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) breaches, in a material way, this Employment Agreement, the Confidential Information Agreement or any
other agreement between Employee and the Company, and, to the extent that the Company determines such breach can reasonably be cured, fails or refuses to effect a cure within 10 days after the Company notifies Employee in writing of the breach. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) <B>&#147;Good Reason.&#148;</B> &#147;Good Reason&#148; for Employee to resign will exist if, without Employee&#146;s express written
consent: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) the Company materially reduces Employee&#146;s position, duties or responsibilities; </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) the Company reduces Employee&#146;s Base Salary as in effect on the date
hereof or as the same may be increased from time to time during the term of this Employment Agreement; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) the Company
changes Employee&#146;s principal place of work to a location more than 50 miles from Employee&#146;s current principal place of work. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Notwithstanding
the foregoing, an action described above will not constitute Good Reason unless: (A)&nbsp;Employee, within 30 days after the he or she learns, or with reasonable diligence should have learned, of such action, delivers to the Company written notice
identifying the action as Good Reason and demanding its correction; (B)&nbsp;the Company fails to correct such event within 30 days after receipt of such notice; and (C)&nbsp;Employee resigns for Good Reason within 90 days after the date Employee
learned, or with reasonable diligence should have learned, of such action.<B> </B> </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) <B>&#147;Change in Control.&#148; </B>For purposes
of this Employment Agreement, the term &#147;Change in Control&#148; will mean the first to occur of any of the following events: (i)&nbsp;any &#147;person&#148; (as that term is used in Section&nbsp;13 and 14(d)(2) of the Securities Exchange Act of
1934 (&#147;Exchange Act&#148;)) becomes the beneficial owner (as that term is used in Section&nbsp;13(d) of the Exchange Act), directly or indirectly, of fifty percent (50%) or more of MKS&#146; capital stock entitled to vote in the election of
directors; (ii)&nbsp;the shareholders of MKS approve any consolidation or merger of MKS other than a consolidation or merger of MKS in which the holders of the common stock of MKS immediately prior to the consolidation or merger hold more than fifty
percent (50%) of the common stock of the surviving corporation immediately after the consolidation or merger; or (iii)&nbsp;the shareholders of MKS approve the sale or transfer of all or substantially all of the assets of MKS to parties that are not
within a &#147;controlled group of corporations&#148; (as defined in Code Section&nbsp;1563) in which MKS is a member. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7. <B><FONT
STYLE="white-space:nowrap">Non-Competition</FONT></B>. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) During Employee&#146;s MKS Employment (as defined below) and for 12&nbsp;months
immediately thereafter (together, the <FONT STYLE="white-space:nowrap">&#147;Non-Compete</FONT> Period&#148;), Employee will not engage in or otherwise carry on, directly or indirectly anywhere in the world (as principal, agent, employee, employer,
investor, shareholder (except for holdings of no greater than 1% of the total outstanding shares in a publicly-traded company), consultant, partner, member, manager, financier or in any other individual or representative capacity of any kind
whatsoever), any Competitive Activity (as&nbsp;defined below). </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) &#147;MKS Employment&#148; means the period beginning on the first day
that Employee is employed by the Company and ending on the first day on which Employee is no longer employed by any MKS Entity (as defined below). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) &#147;MKS Entity&#148; means (i)&nbsp;the Company; (ii)&nbsp;any current or future parent, subsidiary or affiliate of the Company; or
(iii)&nbsp;any successor or assign of (i)&nbsp;or (ii). </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) &#147;Competitive Activity&#148; means business or activity competitive with an MKS Entity
but only to the extent that business or activity is related to, similar to or competitive with the activities of the business unit(s), division(s), laborator(y)(ies), facilit(y)(ies) and other operational unit(s) in or for which Employee performed
work for an MKS Entity or about which Employee acquired Proprietary Information (as defined in the Confidential Information Agreement). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) The <FONT STYLE="white-space:nowrap">Non-Compete</FONT> Period will be extended for any period during which Employee is in breach of this
Employment Agreement or the Confidential Information Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(f) If any court of competent jurisdiction determines that this
Section&nbsp;7 is unenforceable because the <FONT STYLE="white-space:nowrap">Non-Compete</FONT> Period is too long or because Competitive Activity includes too great a range of activities or too wide a geographic scope, the parties agree that this
Section&nbsp;7 should be interpreted to extend only over the maximum period of time or range of activities or geographic scope as to which it may be enforceable. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(g) The post-employment restrictions on Employee&#146;s conduct contained in this Employment Agreement and in the Confidential Information
Agreement: (i)&nbsp;will continue to apply even if Employee&#146;s duties, title, compensation, location or other terms or conditions of employment change, and even if such change or changes are material; and (ii)&nbsp;will apply regardless of how
or why Employee&#146;s employment ends. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(h) The Company and Employee agree that violation by Employee of any of the provisions of this
Section&nbsp;7 of this Employment Agreement would cause the Company irreparable harm beyond what could reasonably or adequately be compensated in damages, and that the Company would therefore be entitled (in addition to the Company&#146;s other
remedies) to an injunction, declaratory judgment or restraining order against any such violation or threatened violation. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">8. <B>Code
Section</B><B></B><B>&nbsp;409A Compliance</B>. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) Where this Employment Agreement refers to Employee&#146;s termination of employment
for purposes of receiving any payment, whether such a termination has occurred will be determined in accordance with Section&nbsp;409A of the Internal Revenue Code (the &#147;Code&#148;) and Treasury Regulation
<FONT STYLE="white-space:nowrap">Section&nbsp;1.409A-1(h)</FONT> (or any successor provisions) to the extent required by law. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) To the
extent that benefits under Section&nbsp;6 are contingent upon Employee providing a General Release, Employee will sign and return the General Release within the reasonable time period designated by the Company, which will not be more than 45 days.
If the period for Employee to review a General Release plus any revocation period crosses calendar years, payments contingent upon the Release will be made in the later calendar year. Any payments contingent upon the General Release that would
otherwise be made during the period for review and revocation of the General Release will be made, provided that the General Release is timely executed and returned to the Company and not revoked, on the first scheduled payment date after such
period ends. Each payment in respect of Employee&#146;s termination of employment under Section&nbsp;6 of the Employment Agreement is designated as a separate payment for Section&nbsp;409A purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) If Employee is designated as a &#147;specified Executive&#148; within the meaning of Code
Section&nbsp;409A (while the Company is publicly traded), any deferred compensation payment subject to Section&nbsp;409A to be made during the <FONT STYLE="white-space:nowrap">six-month</FONT> period following Employee&#146;s termination of
employment will be withheld and the amount of the payments withheld will be paid in a lump sum, without interest, during the seventh month after Employee&#146;s termination; provided, however, that if Employee dies prior to the expiration of such
six month period, payment to Employee&#146;s beneficiary will be made as soon as reasonably practicable following Employee&#146;s death. The Company will identify in writing delivered to Employee any payments it reasonably determines are subject to
delay under this Section&nbsp;8(c). In no event will the Company have any liability or obligation with respect to taxes for which Employee may become liable as a result of the application of Code Section&nbsp;409A. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">9. <B>Code Sections 280G/4999.</B> If (a)&nbsp;any payments or benefits to Employee in connection with this Employment Agreement
(&#147;Payments&#148;) would be subject to the excise tax imposed by Code Section&nbsp;4999 (the &#147;Parachute Tax&#148;), (b) paying Employee a lesser amount would avoid the Parachute Tax entirely and (c)&nbsp;payment of such lesser amount would,
after taking into account applicable federal, state and local income taxes and the Parachute Tax, result in Employee receiving a greater <FONT STYLE="white-space:nowrap">after-tax</FONT> payment than if the Company made the Payments in full, then
the Company will pay Employee such lesser amount instead of making the Payments in full. The reporting and payment of any Parachute Tax will in all events be Employee&#146;s responsibility. The Company will not in any event provide a <FONT
STYLE="white-space:nowrap">gross-up</FONT> or any other payment to compensate Employee for the payment of the Parachute Tax or for any reduction in the Payments. The Company will withhold from the Payments any amounts it reasonably determines are
required under Code Section&nbsp;4999(c) and the Treasury Regulations thereunder. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">10. <B>Withholding.</B> The Company will deduct from the
amounts payable to Employee pursuant to this Employment Agreement all withholding amounts and deductions required by law or authorized by Employee. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">11. <B>Changes to Plans and Policies.</B> Nothing in this Employment Agreement will: (a)&nbsp;require the Company or its affiliates to
establish, maintain or continue any incentive compensation plan, stock incentive plan or other benefit plan, policy or arrangement; (b)&nbsp;restrict the right of the Company or any of its affiliates to amend, modify or terminate any such plan,
policy or arrangement; (c)&nbsp;entitle Employee to participate in any such plan policy or arrangement at any specified level (or at all) in any year; or (d)&nbsp;prevent any future change to any such plan, policy or arrangement from applying to
Employee in accordance with the terms of the change. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">12. <B>Assignment</B>. The rights and obligations of the Company under this
Employment Agreement will inure to the benefit of, and be binding upon, the Company&#146;s successors and assigns. The rights and obligations of Employee under this Employment Agreement will inure to the benefit of, and will be binding upon,
Employee&#146;s heirs, executors and legal representatives. Employee may not delegate or assign any obligations under this Employment Agreement. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">13. <B>Entire Agreement and Severability</B>. This Employment Agreement and the Confidential
Information Agreement supersede any and all other agreements, either oral or in writing, between Employee and the Company with respect to the Company&#146;s employment of Employee. They contain all of the covenants and agreements between the parties
with respect to such employment. Neither party is entering into this Employment Agreement on the basis of any representation, inducement, promise or agreement, oral or otherwise, by any party, or by any one acting on behalf of any party, which is
not stated herein. Any modification of this Employment Agreement will be effective only if it is in writing and signed by both parties to this Employment Agreement. If any provision in this Employment Agreement is held by a court of competent
jurisdiction to be invalid, void or unenforceable, the remaining provisions will nevertheless continue in full force and effect without being impaired or invalidated in any way. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">14. <B>Miscellaneous</B>. This Employment Agreement and the rights and obligations of the parties hereunder will be governed by, and construed
in accordance with, the laws of the Commonwealth of Massachusetts, excluding (but only to the extent permitted by law) its conflict of laws and choice of law rules. The parties agree that service of any process, summons, notice or document by U.S.
certified mail or overnight delivery by a generally recognized commercial courier service to Employee&#146;s last known address (or any mode of service recognized to be effective by applicable law) will be effective service of process for any
action, suit or proceeding brought against Employee. The failure of either party hereto to enforce any right under this Employment Agreement will not be considered a waiver of that right, or of damages caused thereby, or of any other rights under
this Employment Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">15. <B>Arbitration and Waiver of Jury Trial</B>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) Any &#147;Legal Dispute&#148; (as defined below) between Employee and any MKS Entity (or&nbsp;between Employee and any employee or agent of
any MKS Entity, to the extent directly or indirectly arising from or relating in any way to Employee&#146;s employment with or separation from the Company) will be resolved by final and binding arbitration. Notwithstanding the foregoing sentence,
the Company may, in its sole discretion, obtain preliminary injunctive relief enforcing the provisions of the Confidential Information Agreement or Section&nbsp;7 of this Employment Agreement from any court of competent jurisdiction. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) &#147;Legal Dispute&#148; means a dispute about legal rights or legal obligations, including but not limited to any rights or obligations
arising under this Employment Agreement; the Confidential Information Agreement; any other agreement; any applicable legal or equitable doctrine; any applicable common law theory; or any applicable federal, state or local, statute, regulation or
other legal requirement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) The arbitration will be held in the Commonwealth of Massachusetts. It will be conducted in accordance with
the then-prevailing Employment Arbitration Rules of the American Arbitration Association. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>


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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(d) Notwithstanding any other provision of this Employment Agreement or any other agreement or of
any arbitration rules, no Legal Dispute involving any MKS Entity may be included in any class or collective arbitration or any other class or collective proceeding. The exclusive method for resolving any such Legal Dispute will be arbitration on an
individual basis. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(e) Any issues about whether a dispute is subject to arbitration will be determined by a court of competent jurisdiction
and not by an arbitrator. Any issues about the meaning or enforceability of Section&nbsp;15(d) will be decided by a court of competent jurisdiction and not by an arbitrator. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(f) The Company, Employee and the arbitrator will treat all aspects of the arbitration proceedings, including without limitation, discovery,
testimony and other evidence, briefs and the award, as strictly confidential, except that the arbitration award may be disclosed to the extent necessary to enforce the award, the provisions of the Confidential Information Agreement or the provisions
of this Employment Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(g) Employee and the Company understand and acknowledge that by agreeing to arbitrate the disputes covered
by this Section&nbsp;15, they are waiving the right to resolve those disputes in court and waiving any right to a jury trial with respect to those disputes. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">16. <B>Knowing and Voluntary Agreement.</B> Employee understands that Employee has the right to consult counsel before signing this Employment
Agreement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the parties hereto have executed, in the Commonwealth of Massachusetts, this Employment Agreement as a
sealed instrument, all as of the day, month and year first written above. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TD WIDTH="47%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">MKS INSTRUMENTS, INC.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>By: <U>/s/ Catherine
Langtry&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Dated: May&nbsp;10, 2018</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name: Catherine Langtry</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title: Senior Vice President, Global Human Resources</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
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<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ John Lee</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top">Dated: May&nbsp;10, 2018</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">[EMPLOYEE]</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="font-size:18pt; margin-top:0pt; margin-bottom:0pt">&nbsp;</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 99.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt;margin-bottom:0pt">


<IMG SRC="g583849dsp24.jpg" ALT="LOGO">
 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>MKS Instruments Promotes Dr.&nbsp;John&nbsp;T.C. Lee to President </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">May&nbsp;9, 2018 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ANDOVER, Mass., May 09, 2018 (GLOBE NEWSWIRE)
&#151; MKS Instruments, Inc. (NASDAQ:MKSI), a global provider of technologies that enable advanced processes and improve productivity, today announced the promotion of Dr.&nbsp;John&nbsp;T.C. Lee to the position of President, effective May&nbsp;9,
2018. Dr.&nbsp;Lee will continue in his current role as Chief Operating Officer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dr.&nbsp;Lee brings over 25 years of experience in technology
industries, including semiconductor and solar as well as plasma processing research, at leading technology companies including Applied Materials, Lucent Technologies and AT&amp;T Bell Labs. He joined MKS in 2007 and has progressed through the
organization, into his most recent role of Senior Vice President and Chief Operating Officer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dr.&nbsp;Lee previously directed the Company&#146;s Vacuum
and Analysis Division, and prior to that, managed various MKS business units, including those relating to automation and control, integrated process solutions, pressure measurement and control, flow measurement and control, and valve solutions. He
holds a B.S. from Princeton University and both an M.S.C.E.P. and Ph.D. from the Massachusetts Institute of Technology, all in Chemical Engineering. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dr.&nbsp;Lee will report to Gerald G. Colella, Chief Executive Officer. &#147;John&#146;s hard work, dedication and commitment have led to this most deserved
role. This change will help MKS further sharpen our focus on many new growth opportunities ahead and integration of our technology offerings,&#148; Colella said. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>About MKS Instruments </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">MKS Instruments, Inc. is a global
provider of instruments, subsystems and process control solutions that measure, monitor, deliver, analyze, power, and control critical parameters of advanced manufacturing processes to improve process performance and productivity. Our products are
derived from our core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, residual gas analysis, leak detection, control technology, ozone generation and delivery,
RF&nbsp;&amp; DC power, reactive gas generation, vacuum technology, lasers, photonics, <FONT STYLE="white-space:nowrap">sub-micron</FONT> positioning, vibration control, and optics. Our primary served markets include semiconductor capital equipment,
general industrial, life sciences, and research. Additional information can be found at <U>www.mksinst.com</U>. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Company Contact: Seth H. Bagshaw </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Senior Vice President, Chief Financial Officer and Treasurer </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Telephone: 978.645.5578 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Investor Relations Contact: The
Blueshirt Group </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Monica Gould </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Telephone: 212.871.3927 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Email: <U>monica@blueshirtgroup.com</U> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Lindsay Savarese </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Telephone: 212.331.8417 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Email: <U>lindsay@blueshirtgroup.com</U>
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Primary Logo </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Source: MKS Instruments, Inc. </P>
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