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 · 4 exercises
InsiderWILLIAMS JOHN EDWARDCIK 1710173
IssuerMKS INCCIK 1049502
Officer· EVP & GM, PSD
Since Feb 2026
+278.23
Net shares
Net buyer
$311.7K
Total sold
0
Open market trades
0B · 0S
10
Total transactions
4.71K acquired · 4.43K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+300.39

Price / share

Trade value

% of position

8.3%
2/17/2026
3.64K3.94K

Common Stock

Direct
M · Option Exercise

Shares

+841.00

Price / share

Trade value

% of position

21.3%
2/17/2026
3.94K4.78K

Common Stock

Direct
M · Option Exercise

Shares

+990.72

Price / share

Trade value

% of position

20.7%
2/17/2026
4.78K5.77K

Common Stock

Direct
M · Option Exercise

Shares

+1.11K

Price / share

Trade value

% of position

19.2%
2/17/2026
5.77K6.88K

Common Stock

Direct
F · Tax Withholding

Shares

1.20K

Price / share

$260.74

Trade value

$311.71K

% of position

17.4%
2/17/2026
6.88K5.68K
Total

Net shares

+2.04K

Net value

-$311.71K

Derivative Transactions5

Restricted Stock Unit

Direct
A · Award
Converts to

Common Stock

1.47K shares

Shares

+1.47K

Strike price

Held after

11.79K

Exercisable

2/17/2026

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

300.39 shares

Shares

300.39

Strike price

Held after

11.49K

Exercisable

2/17/2026

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

841.00 shares

Shares

841.00

Strike price

Held after

10.65K

Exercisable

2/17/2026

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

990.72 shares

Shares

990.72

Strike price

Held after

9.66K

Exercisable

2/17/2026

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

1.11K shares

Shares

1.11K

Strike price

Held after

8.55K

Exercisable

2/17/2026
WILLIAMS JOHN EDWARD — Insider Transaction (Form 4) Filed Feb 18, 2026 | Finecho