Form Type: 4

SEC EDGAR Link
Accession Number:0001127602-22-014106
Date:2022-05-10
Issuer: MKS INSTRUMENTS INC (MKSI)
Original Submission Date:

Reporting Person:

WARNER MICHELLE M
C/O MKS INSTRUMENTS, INC.
2 TECH DRIVE, SUITE 201 ANDOVER, MA 01810

Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
Title of SecurityTransaction Date2a. Deemed Execution Date Transaction CodeSharesAcquired or DisposedPrice per share 5. Amount of Securities Beneficially Owned Following Reported Transaction 6. Ownership Form Direct or IndirectNature of Indirect Ownership
COMMON STOCK 2022-05-10 A 1,745 a $0.00 6,861 direct
Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, convertible securities
Title of Derivative Security Conversion or Exercise Price of Derivative Security Transaction Date Deemed Execution Date Transaction Code Number of Derivative Securities Acquired (A) or Disposed of (D) Date ExercisableExpiration Date Title and Amount of Securities Underlying Derivative Security Price of Derivative Security Number of derivative Securities Beneficially Owned Following Reported Transaction(s) Ownership Form: Direct (D) or Indirect (I) Nature of Indirect Beneficial Ownership
Footnotes
IDfootnote
f1 these restricted stock units become fully vested on the day prior to the first annual meeting of shareholders following the date of grant (or if no such meeting is held within 13 months after the date of grant, on the 13 month anniversary of the date of grant).
f2 each restricted stock unit represents the contingent right to receive one share of common stock of mks instruments, inc.

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