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MKS INC Director's Dealing 2018

Feb 13, 2018

30723_dirs_2018-02-13_e749b4c2-d430-439b-a1dc-097f702f76c3.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MKS INSTRUMENTS INC (MKSI)
CIK: 0001049502
Period of Report: 2018-02-12

Reporting Person: COLELLA GERARD G (Director, CEO, President, Director)

Derivative Transactions

Date Security Exercise Price Code Shares A/D Expiration Underlying Ownership
2018-02-12 Restricted Stock Unit $ J 6425.406 Disposed Common Stock (6425.406) Direct

Footnotes

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

F2: This transaction reflects the forfeiture of RSUs due to performance criteria.

F3: These RSUs are subject to the achievement of performance criteria determined in the first year of grant and thereafter vest in three equal annual installments beginning on February 15, 2018, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day.