0001127602-24-005321.txt : 20240216 0001127602-24-005321.hdr.sgml : 20240216 20240216150230 ACCESSION NUMBER: 0001127602-24-005321 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240215 FILED AS OF DATE: 20240216 DATE AS OF CHANGE: 20240216 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BAGSHAW SETH H CENTRAL INDEX KEY: 0001192439 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 24647705 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MKS INSTRUMENTS INC CENTRAL INDEX KEY: 0001049502 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823] ORGANIZATION NAME: 08 Industrial Applications and Services IRS NUMBER: 042277512 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2 TECH DRIVE STREET 2: SUITE 201 CITY: ANDOVER STATE: MA ZIP: 01810 BUSINESS PHONE: 978-645-5500 MAIL ADDRESS: STREET 1: 2 TECH DRIVE STREET 2: SUITE 201 CITY: ANDOVER STATE: MA ZIP: 01810 4 1 form4.xml PRIMARY DOCUMENT X0508 4 2024-02-15 0001049502 MKS INSTRUMENTS INC MKSI 0001192439 BAGSHAW SETH H C/O MKS INSTRUMENTS, INC. 2 TECH DRIVE, SUITE 201 ANDOVER MA 01810 1 EVP, CFO & Treasurer 0 Common Stock 2024-02-15 4 M 0 3728.956 A 24401.624 D Common Stock 2024-02-15 4 M 0 1525.164 A 25926.788 D Common Stock 2024-02-15 4 M 0 4129 A 30055.788 D Common Stock 2024-02-15 4 M 0 2430 A 32485.788 D Common Stock 2024-02-15 4 M 0 6791 A 39276.788 D Common Stock 2024-02-15 4 M 0 2762 A 42038.788 D Common Stock 2024-02-15 4 F 0 9173 122.15 D 32865.788 D Restricted Stock Unit 2024-02-15 4 M 0 3728.956 D Common Stock 3728.956 43308.007 D Restricted Stock Unit 2024-02-15 4 M 0 1525.164 D Common Stock 1525.164 41782.843 D Restricted Stock Unit 2024-02-15 4 M 0 4129 D Common Stock 4129 37653.843 D Restricted Stock Unit 2024-02-15 4 M 0 2430 D Common Stock 2430 35223.843 D Restricted Stock Unit 2024-02-15 4 M 0 6791 D Common Stock 6791 28432.843 D Restricted Stock Unit 2024-02-15 4 M 0 2762 D Common Stock 2762 25670.843 D Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc. These shares were withheld by MKS Instruments, Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person. These RSUs were subject to performance criteria, the achievement of which was determined on January 21, 2022, and thereafter vest in three equal annual installments beginning on February 15, 2022, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. These RSUs vest in three equal annual installments commencing on February 15, 2022, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. These RSUs were subject to performance criteria, the achievement of which was determined on February 8, 2023, and thereafter vest in three equal annual installments beginning on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. These RSUs vest in three equal annual installments commencing on February 15, 2023, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. These RSUs were subject to performance criteria, the achievement of which was determined on February 5, 2024, and thereafter vest in three equal annual installments beginning on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. These RSUs vest in three equal annual installments commencing on February 15, 2024, provided that if, in any vesting year, February 15th is not a business day, such vesting shall occur on the next business day. /s/ M. Kathryn Rickards, attorney-in-fact 2024-02-16