401(k) · DOL Form 5500 · 2022

Boston Mutual Life Insurance Co. 401(k) Plan

Data updated 2026-08-25

$72M
Total assets Below avg plan size
290
Participants Below avg headcount
91st
Percentile by assets National rank
$246,795
Avg per participant Above avg balance/head
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Official DOL plan name: Boston Mutual Life 401(k) Plan for Salaried Employees · Sponsored by Boston Mutual Life Insurance Co. · Massachusetts · Finance & Insurance

$72M in assets, 290 participants

Boston Mutual Life Insurance Co.'s Boston Mutual Life 401(k) Plan for Salaried Employees reported $72M in total assets and 290 participants in its 2022 DOL Form 5500 filing, ranking in the 91st percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #7,871 in Finance & Insurance (9,261 peers)

Coverage in Massachusetts

Boston Mutual Life 401(k) Plan for Salaried Employees covers 290 participants in Massachusetts, about 44% of the average Massachusetts filer (state average ~659 per filing). Assets: $72M.

#7,871
in Finance & Insurance (9,261 peers)
-19.9%
assets change YoY
0.7×
vs typical plan assets (national mean)

The plan reported a net loss of $18M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Boston Mutual Life 401(k) Plan for Salaried Employees's outsized position by total assets

Boston Mutual Life 401(k) Plan for Salaried Employees vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$71,570,437 Top 9% higher than 91% of 139,123 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022

Boston Mutual Life 401(k) Plan for Salaried Employees among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Boston Mutual Life 401(k) Plan for Salaried Employees sits mid-pack in the medium band (290 participants).

Plan-year Form 5500 strip

Filing strip 041106240 · Boston Mutual Life Insurance Co. PY 2022 · 401(k)

Boston Mutual Life 401(k) Plan for Salaried Employees · $72M · 290 · 91st

  • PCT $72M
  • PCT 290
  • PCT 91st
  • PCT 401(k)
  • PCT near The Proconex Group 401(k) Plan
  • PCT ind #7871

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Finance & Insurance retirement plans → · Plans in Massachusetts →

Boston Mutual Life 401(k) Plan for Salaried Employees in the asset neighbourhood

Hilde Companies Profit Sharing and 401(k) Savings PlanHilde Companies Profit Shari…$72MSouth Carolina Federal Credit Union EmployeesSouth Carolina Federal Credi…$72MBoston Mutual Life 401(k) Plan for Salaried EmployeesBoston Mutual Life 401(k) Pl…$72MThe Proconex Group 401(k) PlanThe Proconex Group 401(k) Pl…$72MShelly & Sands, Inc. Employees 401(k) PlanShelly & Sands, Inc. Employe…$72M
End-of-year total assets ($M) among Boston Mutual Life 401(k) Plan for Salaried Employees and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Massachusetts filing particulars

Total Assets (Beginning of Year)$89M
Net Assets (End of Year)$72M
Net Income-$18M
Employer EIN041106240
Plan Effective Date1987-04-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Boston Mutual Life Insurance Co.)

Sponsor-wide plan assets over time

All Boston Mutual Life Insurance Co. plans reported in each filing year

Latest sponsor-wide plan assets
$144M 26.04240417191386% vs 2022
2024 filing year
$110M$120M$130M$140M$150M 202220232024 $115M $144M ▲ +26.0%
Year Plans Participants Total Assets
2022 2 362 $115M
2023 2 388 $129M
2024 2 384 $144M

Nearby 401(k) Plans in Massachusetts

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Boston Mutual Life 401(k) Plan for Salaried Employees vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Boston Mutual Life 401(k) Plan for Salaried Employees, Total assets ($B): 0.071570437 · Participants: 290Boston Mutual Life 401(k) Plan for Salaried EmployeesFidelity Retirement Savings Plan, Total assets ($B): 22.953563448 · Participants: 52036Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 8.79802945 · Participants: 32843Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 5.810585521 · Participants: 13690Massachusetts Institute of Technology Supplemental 401(k) PlanPhilips North America 401(k) Plan, Total assets ($B): 5.180251859 · Participants: 19750Philips North America 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 4.853752256 · Participants: 18359Boston Scientific Corporation 401(k) Retirement Savings Plan
Boston Mutual Life 401(k) Plan for Salaried Employees vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Boston Mutual Life 401(k) Plan for Salaried Employees side-by-side with 3 peers →

Boston Mutual Life 401(k) Plan for Salaried Employees's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is The Proconex Group 401(k) Plan in PA ($72M); by covered participants it is Arm Management Inc 401(k) Profit Sharing Plan & Trust in CA (290 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (290 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Boston Mutual Life 401(k) Plan for Salaried Employees assets move in 2022? ▼
Boston Mutual Life 401(k) Plan for Salaried Employees declined sharply - down 19.9% during 2022, from $89M to $72M. Reported net income was -$18M.
How have Boston Mutual Life Insurance Co. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Boston Mutual Life Insurance Co.'s sponsor-wide assets grew 26.0%, from $115M to $144M.
Where does Boston Mutual Life 401(k) Plan for Salaried Employees rank by assets among Form 5500 filers? ▼
Boston Mutual Life 401(k) Plan for Salaried Employees ranks in the 91st percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Boston Mutual Life 401(k) Plan for Salaried Employees? ▼
Among 401(k) plans in other states, the closest by assets is The Proconex Group 401(k) Plan in PA ($72M, 255 participants).
Which 401(k) plans cover a similar participant headcount to Boston Mutual Life 401(k) Plan for Salaried Employees? ▼
Among 401(k) plans in other states, the closest by covered participants is Arm Management Inc 401(k) Profit Sharing Plan & Trust in CA (290 participants, $248K in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 041106240.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.