Employer with a benefit plan ยท SEC filer
MKS INSTRUMENTS, INC.
Also filed as MKS INC
2 TECH DRIVE, SUITE 201, ANDOVER, MA 01810
EIN
04-2277512
SEC CIK
0001049502
SEC · 2026-09-03
Industry (SIC)
Industrial Instruments For Measurement, Display, and Control (3823)
SEC · 2026-09-03
State of incorporation
MA
SEC · 2026-09-03
Ticker
MKSI
SEC · 2026-09-03
Latest SEC filing
SCHEDULE 13G/A 2026-09-03
SEC · 2026-09-03
Benefit plan 1, 2024 filing
MKS INSTRUMENTS, INC. PROFIT SHARING & 401(K) PLAN
DOL · 2025-10-08
Participants (start of year)
4,151
DOL · 2025-10-08
Plan features
code 2E2F2G2J2K2S2T3D
DOL · 2025-10-08
Plan type
Single-employer plan
DOL · 2025-10-08
Business code (NAICS)
334500
DOL · 2025-10-08
Benefit plan 525, 2024 filing
THE MKS INSTRUMENTS, INC. WELFARE BENEFITS PLAN
DOL · 2025-09-09
Participants (start of year)
2,942
DOL · 2025-09-09
Plan features
code 4A4B4D4E4F4H4L4Q
DOL · 2025-09-09
Plan type
Single-employer plan
DOL · 2025-09-09