Seth H. Bagshaw - Oct 28, 2021 Form 4 Insider Report for MKS INSTRUMENTS INC (MKSI)

Role
Sr. VP, CFO & Treasurer
Signature
/s/ M. Kathryn Rickards, attorney-in-fact
Stock symbol
MKSI
Transactions as of
Oct 28, 2021
Transactions value $
-$281,715
Form type
4
Date filed
10/29/2021, 05:19 PM
Next filing
Dec 6, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKSI Common Stock Options Exercise +4.36K +22.35% 23.9K Oct 28, 2021 Direct F1
transaction MKSI Common Stock Tax liability -$282K -1.93K -8.1% $145.74 21.9K Oct 28, 2021 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MKSI Restricted Stock Unit Options Exercise -4.36K -13.87% 27.1K Oct 28, 2021 Common Stock 4.36K Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.
F2 This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.
F3 These RSUs vest in two equal annual installments on each of the second anniversary and third anniversary of the date of grant, October 28, 2019.