OpenERISA

Mevion Medical Systems, INC.

Littleton, MA, 01460

EIN 20-0794350
Plans
4
Total participants
2,833
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
541990
Plan sponsors in MassachusettsProfessional, Scientific & Technical Services

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500001Mevion Medical Systems INC. 401(K) Profit Sharing Plan143
2024Form 5500501Mevion Medical Systems, INC. Medical Plan142
2024Form 5500502Mevion Medical Systems, INC. Dental Plan142
2024Form 5500503Mevion Medical Systems, INC. Life And Disability Plan142
2023Form 5500001Mevion Medical Systems INC. 401(K) Profit Sharing Plan170
2023Form 5500501Mevion Medical Systems, INC. Medical Plan142
2023Form 5500502Mevion Medical Systems, INC. Dental Plan142
2023Form 5500503Mevion Medical Systems, INC. Life And Disability Plan142
2022Form 5500001Mevion Medical Systems INC. 401(K) Profit Sharing Plan172
2022Form 5500501Mevion Medical Systems, INC. Medical Plan131
2022Form 5500502Mevion Medical Systems, INC. Dental Plan131
2022Form 5500503Mevion Medical Systems, INC. Life And Disability Plan131
2021Form 5500001Mevion Medical Systems INC. 401(K) Profit Sharing Plan163
2021Form 5500501Mevion Medical Systems, INC. Medical Plan145
2021Form 5500502Mevion Medical Systems, INC. Dental Plan127
2021Form 5500503Mevion Medical Systems, INC. Life And Disability Plan136
2020Form 5500001Mevion Medical Systems INC. 401(K) Profit Sharing Plan & Trust140
2020Form 5500501Mevion Medical Systems, INC. Medical Plan134
2020Form 5500502Mevion Medical Systems, INC. Dental Plan120
2020Form 5500503Mevion Medical Systems, INC. Life And Disability Plan138

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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