WILLIAMS JOHN EDWARD

PrivateCIK: 1710173
Location

ANDOVER, MA

WILLIAMS JOHN EDWARD (EVP & GM, PSD) exercised options at MKS INC

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderWILLIAMS JOHN EDWARDCIK 1710173
IssuerMKS INCCIK 1049502
Officer· EVP & GM, PSD
Since Feb 2026
-825.97
Net shares
Net seller
$222.9K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
1.74K acquired · 2.57K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+1.74K

Price / share

Trade value

% of position

47.8%
4/17/2026
3.64K5.38K

Common Stock

Direct
F · Tax Withholding

Shares

825.97

Price / share

$269.89

Trade value

$222.92K

% of position

15.4%
4/17/2026
5.38K4.55K
Total

Net shares

+914.74

Net value

-$222.92K

Derivative Transactions1

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

1.74K shares

Shares

1.74K

Strike price

Held after

6.81K

Exercisable

4/17/2026
WILLIAMS JOHN EDWARD — Insider Transaction (Form 4) Filed Apr 20, 2026 | Finecho