Employer with a benefit plan ยท SEC filer
MATTSON TECHNOLOGY, INC.
47131 BAYSIDE PARKWAY, FREMONT, CA 94538
EIN
77-0208119
Benefit plan 1, 2024 filing
MATTSON TECHNOLOGY, INC. 401(K) PLAN
DOL · 2025-10-03
Participants (start of year)
438
DOL · 2025-10-03
Plan features
code 2E2F2G2J2K2T3D2R
DOL · 2025-10-03
Plan type
Single-employer plan
DOL · 2025-10-03
Business code (NAICS)
334410
DOL · 2025-10-03
Benefit plan 501, 2024 filing
MATTSON TECHNOLOGY, INC. HEALTH & WELFARE PLAN
DOL · 2025-09-08
Participants (start of year)
232
DOL · 2025-09-08
Plan features
code 4A4B4D4E4F4G4H4L4Q
DOL · 2025-09-08
Plan type
Single-employer plan
DOL · 2025-09-08
Business code (NAICS)
339900
DOL · 2025-09-08
Benefit plan 1, 2023 filing
MATTSON TECHNOLOGY, INC. 401(K) PLAN
DOL · 2024-10-15
Participants (start of year)
421
DOL · 2024-10-15
Plan features
code 2E2F2G2J2K2T3D2R
DOL · 2024-10-15
Plan type
Single-employer plan
DOL · 2024-10-15