OpenERISA

Mattson Technology, INC.

Fremont, CA, 94538

EIN 77-0208119
Plans
2
Total participants
2,437
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
334410
Plan sponsors in CaliforniaManufacturing

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500001Mattson Technology, INC. 401(K) Plan246
2024Form 5500501Mattson Technology, INC. Health & Welfare Plan218
2023Form 5500001Mattson Technology, INC. 401(K) Plan276
2023Form 5500501Mattson Technology, INC. Health & Welfare Plan277
2022Form 5500001Mattson Technology, INC. 401(K) Plan264
2022Form 5500501Mattson Technology, INC. Health & Welfare Plan258
2021Form 5500001Mattson Technology, INC. 401(K) Plan229
2021Form 5500501Mattson Technology, INC. Health & Welfare Plan230
2020Form 5500001Mattson Technology, INC. 401(K) Plan217
2020Form 5500501Mattson Technology, INC. Health & Welfare Plan222

Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.

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