Kathleen Flaherty Burke - Feb 5, 2024 Form 4 Insider Report for MKS INSTRUMENTS INC (MKSI)

Role
EVP, GC & Secretary
Signature
/s/ M. Kathryn Rickards, attorney-in-fact
Stock symbol
MKSI
Transactions as of
Feb 5, 2024
Transactions value $
$0
Form type
4
Date filed
2/6/2024, 02:46 PM
Previous filing
Aug 8, 2023
Next filing
Feb 16, 2024

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 Award +10.8K +65.52% 27.3K Feb 5, 2024 Common Stock 10.8K Direct F1, F2
* 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 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.