John Tseng-Chung Lee - 01 Dec 2023 Form 4 Insider Report for MKS INSTRUMENTS INC (MKSI)

Role
President & CEO, Director
Signature
/s/ M. Kathryn Rickards, attorney-in-fact
Issuer symbol
MKSI
Transactions as of
01 Dec 2023
Net transactions value
-$275,722
Form type
4
Filing time
05 Dec 2023, 14:36:50 UTC
Previous filing
11 May 2023
Next filing
06 Feb 2024
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKSI Common Stock Options Exercise +390 +0.5% 78,529 01 Dec 2023 Direct F1
transaction MKSI Common Stock Options Exercise +1,186 +1.5% 79,715 01 Dec 2023 Direct F1
transaction MKSI Common Stock Options Exercise +160 +0.2% 79,875 01 Dec 2023 Direct F1
transaction MKSI Common Stock Options Exercise +569 +0.71% 80,444 01 Dec 2023 Direct F1
transaction MKSI Common Stock Options Exercise +970 +1.2% 81,414 01 Dec 2023 Direct F1
transaction MKSI Common Stock Tax liability $275,722 -3,275 -4% $84.19 78,139 01 Dec 2023 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 -390 -0.48% 80,410 01 Dec 2023 Common Stock 390 Direct F1, F3
transaction MKSI Restricted Stock Unit Options Exercise -1,186 -1.5% 79,224 01 Dec 2023 Common Stock 1,186 Direct F1, F4
transaction MKSI Restricted Stock Unit Options Exercise -160 -0.2% 79,064 01 Dec 2023 Common Stock 160 Direct F1, F3
transaction MKSI Restricted Stock Unit Options Exercise -569 -0.72% 78,495 01 Dec 2023 Common Stock 569 Direct F1, F4
transaction MKSI Restricted Stock Unit Options Exercise -970 -1.2% 77,525 01 Dec 2023 Common Stock 970 Direct F1, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc.
F2 Shares used to satisfy FICA taxes.
F3 Portion of 2021 RSU Award accelerated to satisfy FICA taxes.
F4 Portion of 2022 RSU Award accelerated to satisfy FICA taxes.
F5 Portion of 2023 RSU Award accelerated to satisfy FICA taxes.