Closed
Exercise
Reported value range
Not reported

Lee John Tseng-chung President & CEO

MKSI
Transaction date Oct 30, 2026
Public filing date Nov 3, 2026
Filing lag Filed 4 days later

MKSI daily price context

Close on/before transaction
$202.04 Oct 30, 2026
First close after public filing
$194.95 Nov 4, 2026
Return after filing · so far
-1.37% Through Nov 6, 2026

Source details

Reported owner
Not disclosed
Source asset code
Security
Security
Common Stock
Quantity / price
678.58 shares
SEC ownership
Direct
Transaction code
M
Form
4
Filing identifier
0001049502-26-000122
Filing cohort

Transactions in this filing

Showing 5 of 5
Trades
5
Issuers
1
Estimated value
$435.89K
Buys / sales
0 / 0
Transactions reported in the same official filing
Issuer Transaction Traded Value
Mks Inc MKSI Current Exercise Oct 30, 2026 Not reported
Mks Inc MKSI Exercise Oct 30, 2026 Not reported
Mks Inc MKSI Disposition Oct 30, 2026 $435.89K
Mks Inc MKSI Exercise Oct 30, 2026 Not reported
Mks Inc MKSI Exercise Oct 30, 2026 Not reported