Jacqueline F. Moloney - Dec 10, 2024 Form 4 Insider Report for MKS INSTRUMENTS INC (MKSI)

Role
Director
Signature
/s/ M. Kathryn Rickards, attorney-in-fact
Stock symbol
MKSI
Transactions as of
Dec 10, 2024
Transactions value $
-$34,440
Form type
4
Date filed
12/11/2024, 02:11 PM
Previous filing
Oct 2, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKSI Common Stock Sale -$34.4K -300 -2.92% $114.80 9.98K Dec 10, 2024 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 10, 2024.