DOL Form 5500 · 2024 Plan Year

LIBERTY MUTUAL GROUP INC.

LIBERTY MUTUAL RETIREMENT BENEFIT PLAN

Defined BenefitMA
$6.3B
Plan Assets
81,337
Participants
2024
Plan Year
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Plan Details

Plan Name
LIBERTY MUTUAL RETIREMENT BENEFIT PLAN
Sponsor
LIBERTY MUTUAL GROUP INC.
Sponsor EIN
043583679
Plan Number
001
Location
BOSTON, MA
Plan Type
Defined Benefit
Total Assets (Sch. H, EOY)
$6.3B
Participants
81,337
Filing Received
October 8, 2025
Plan Year
2024

About this Plan

LIBERTY MUTUAL RETIREMENT BENEFIT PLAN is a defined benefit retirement plan sponsored by LIBERTY MUTUAL GROUP INC., headquartered in BOSTON, MA, holding approximately $6.3B in plan assets on behalf of 81,337 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).