John Tseng-Chung Lee - 06 Dec 2024 Form 4 Insider Report for MKS INSTRUMENTS INC (MKSI)

Signature
/s/ M. Kathryn Rickards, attorney-in-fact
Issuer symbol
MKSI
Transactions as of
06 Dec 2024
Net transactions value
-$343,112
Form type
4
Filing time
10 Dec 2024, 15:06:13 UTC
Previous filing
10 May 2024
Next filing
11 Feb 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKSI Common Stock Options Exercise +2,010 +1.8% 114,699 06 Dec 2024 Direct F1
transaction MKSI Common Stock Options Exercise +984 +0.86% 115,683 06 Dec 2024 Direct F1
transaction MKSI Common Stock Tax liability $343,112 -2,994 -2.6% $114.60 112,689 06 Dec 2024 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 -2,010 -1.9% 102,868 06 Dec 2024 Common Stock 2,010 Direct F1, F3
transaction MKSI Restricted Stock Unit Options Exercise -984 -0.96% 101,884 06 Dec 2024 Common Stock 984 Direct F1, F4
* 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 2023 RSU Award accelerated to satisfy FICA taxes.
F4 Portion of 2024 RSU Award accelerated to satisfy FICA taxes.