BURKE KATHLEEN FLAHERTY

PrivateCIK: 1775435
Location

ANDOVER, MA

BURKE KATHLEEN FLAHERTY (Sr. VP, GC & Secretary) sold 7.3% of their position (4.25K shares) of MKS INC on the open market

Open‑market sale worth $1.06M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderBURKE KATHLEEN FLAHERTYCIK 1775435
IssuerMKS INCCIK 1049502
Officer· Sr. VP, GC & Secretary
Since May 2019
-4.25K
Net shares
Net seller
$1.06M
Total sold
1
Open market trades
0B · 1S
1
Total transactions
4.25K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

4.25K

Price / share

$250.00

Trade value

$1.06M

% of position

7.3%
2/20/2026
58.05K53.79K
Total

Net shares

4.25K

Net value

-$1.06M

Derivative Transactions0
No derivative transactions reported
BURKE KATHLEEN FLAHERTY — Insider Transaction (Form 4) Filed Feb 23, 2026 | Finecho