OpenERISA

Materials Research Society

Warrendale, PA, 150867573

EIN 31-1037979
Plans
1
Total participants
171
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
813000

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500-SF001Materials Research Society 401(K) Profit Sharing Retirement Plan35
2023Form 5500-SF001Materials Research Society 401(K) Profit Sharing Retirement Plan35
2022Form 5500-SF001Materials Research Society 401(K) Profit Sharing Retirement Plan30
2021Form 5500-SF001Materials Research Society 401(K) Profit Sharing Retirement Plan34
2020Form 5500-SF001Materials Research Society 401(K) Profit Sharing Retirement Plan37

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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