← Back
$MKSI All transactions

MKS INSTRUMENTS INC

A

$ Value

Shares

2,479

Price

Filed

May 13

Insider

Name

Donahue Joseph B

Title

CIK

0001413323

Roles

Director

Transaction Details

Transaction Date

2025-05-12

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

11,351

Footnotes

These restricted stock units become fully vested on the day prior to the first annual meeting of shareholders following the date of grant (or if no such meeting is held within 13 months after the date of grant, on the 13 month anniversary of the date of grant). | Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.

Filing Info

Accession No.

0001127602-25-014095

Form Type

4

Issuer CIK

0001049502

Donahue Joseph B's History

Date Ticker Type Value
2025-05-12 MKSI A

Other Insiders at MKSI (90d)

Insider Bought Sold Last
COLELLA GERALD G $5.1M 2026-02-24
CANNONE PETER III $323K 2026-02-20
Lee John Tseng-Chung
President & CEO
$7.7M 2026-02-20
Moloney Jacqueline F $278K 2026-03-12
Mora Elizabeth $72K 2026-03-02
Williams John Edward
EVP & GM, PSD
$524K 2026-04-17
McCarthy Michelle M
SVP & Chief Accounting Officer
2026-04-15
McCarthy Michelle M
VP & Chief Accounting Officer
$367K 2026-02-20
Burke Kathleen Flaherty
EVP, GC & Secretary
$1.1M 2026-02-20
Schreiner James Alan
EVP & COO
$1.0M 2026-02-24
Taranto Eric Robert
EVP & GM, VSD
$1.4M 2026-03-06
Henry David Philip
EVP, Global Str Mktg & GM, MSD
$523K 2026-02-20
Mayampurath Ramakumar
EVP & CFO
2026-02-17