DOL Form 5500 · 2024 Plan Year

MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY

MASSMUTUAL PENSION PLAN

Defined BenefitMA
$2.5B
Plan Assets
24,235
Participants
2024
Plan Year
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Plan Details

Plan Name
MASSMUTUAL PENSION PLAN
Sponsor
MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY
Sponsor EIN
041590850
Plan Number
001
Location
SPRINGFIELD, MA
Plan Type
Defined Benefit
Total Assets (Sch. H, EOY)
$2.5B
Participants
24,235
Filing Received
October 8, 2025
Plan Year
2024

About this Plan

MASSMUTUAL PENSION PLAN is a defined benefit retirement plan sponsored by MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY, headquartered in SPRINGFIELD, MA, holding approximately $2.5B in plan assets on behalf of 24,235 participants. As a defined benefit plan, its assets are managed by the sponsor's investment office, which typically allocates across public and private markets to meet long-dated liabilities. This data is sourced from the plan's DOL Form 5500 filing (Schedule H).