Jacqueline F. Moloney - 01 Aug 2025 Form 4 Insider Report for MKS INC (MKSI)

Role
Director
Signature
/s/ M. Kathryn Rickards, attorney-in-fact
Issuer symbol
MKSI
Transactions as of
01 Aug 2025
Net transactions value
-$27,630
Form type
4
Filing time
04 Aug 2025, 11:30:05 UTC
Previous filing
01 Jul 2025
Next filing
02 Oct 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Moloney Jacqueline F Director C/O MKS INC., 2 TECH DRIVE, ANDOVER /s/ M. Kathryn Rickards, attorney-in-fact 04 Aug 2025 0001501968

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKSI Common Stock Sale $27,630 -300 -2.5% $92.10 11,862 01 Aug 2025 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.