Gerard G. Colella - Aug 31, 2023 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
Aug 31, 2023
Transactions value $
-$1,000,056
Form type
4
Date filed
9/1/2023, 10:13 AM
Previous filing
Jul 26, 2023
Next filing
Jan 23, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MKSI Common Stock Sale -$1M -10K -10.2% $100.01* 88K Aug 31, 2023 By The Gerald G. Colella Living Trust F1, F2
holding MKSI Common Stock 4.12K Aug 31, 2023 Direct
* 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 May 8, 2023.
F2 This transaction was executed in multiple trades at prices ranging from $100.00 to $100.11. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.