401(k) · DOL Form 5500 · 2024

Boston Mutual Life Insurance Co. 401(k) Plan

Data updated 2026-08-25

$102M
Total assets Near avg plan size
331
Participants Below avg headcount
91st
Percentile by assets National rank
$308,125
Avg per participant High balance/head
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Official DOL plan name: Boston Mutual 401(k) Plan for Salaried Employees · Sponsored by Boston Mutual Life Insurance Co. · Massachusetts · Finance & Insurance

$102M in assets, 331 participants

Boston Mutual Life Insurance Co.'s Boston Mutual 401(k) Plan for Salaried Employees reported $102M in total assets and 331 participants in its 2024 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.

  • #7,293 in Finance & Insurance (8,549 peers)

Where Boston Mutual 401(k) Plan for Salaried Employees sits by assets

Boston Mutual 401(k) Plan for Salaried Employees sits in the top 10% of all filed plans by assets, $102M for 331 participants (~$308,125/participant), up 19.0% in 2024.

#7,293
in Finance & Insurance (8,549 peers)
+19.0%
assets growth YoY
1.0×
vs typical plan assets (national mean)

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

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

End-of-year total assets · plan year 2024 · DOL Form 5500

$101,989,303 Top 9% higher than 91% of 123,620 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 2024

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

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Boston Mutual 401(k) Plan for Salaried Employees sits mid-pack in the medium band (331 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Boston Mutual 401(k) Plan for Salaried Employees end-of-year assets rose from $86M in the plan year 2023 filing to $102M in the plan year 2024 filing.
  • Boston Mutual 401(k) Plan for Salaried Employees reported net income rose from $14M in the plan year 2023 filing to $16M in the plan year 2024 filing.
  • Boston Mutual 401(k) Plan for Salaried Employees reported participants rose from 321 in the plan year 2023 filing to 331 in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 041106240 · Boston Mutual Life Insurance Co. PY 2024 · 401(k)

Boston Mutual 401(k) Plan for Salaried Employees · $102M · 331 · 91st

  • TYPE $102M
  • NET 331
  • BOOK 91st
  • VS-ST 401(k)
  • BOY near Hh Global US 401(k) Savings Plan
  • SCH ind #7293

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

Boston Mutual 401(k) Plan for Salaried EmployeesBoston Mutual 401(k) Plan fo…$102MHh Global US 401(k) Savings PlanHh Global US 401(k) Savings …$102MPixelle Specialty Solutions Hourly 401(k) Savings Plan (Union)Pixelle Specialty Solutions …$102MYork Hospital Retirement Plan$102MMyfuture 401(k) Retirement Savings PlanMyfuture 401(k) Retirement S…$102M
End-of-year total assets ($M) among Boston Mutual 401(k) Plan for Salaried Employees and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$86M
Net Assets (End of Year)$102M
Net Income$16M
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 401(k) Plan for Salaried Employees vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Boston Mutual 401(k) Plan for Salaried Employees, Total assets ($B): 0.101989303 · Participants: 331Boston Mutual 401(k) Plan for Salaried EmployeesFidelity Retirement Savings Plan, Total assets ($B): 34.201609937 · Participants: 66907Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 11.352606499 · Participants: 34618Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 7.720373045 · Participants: 14762Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 6.775289067 · Participants: 20639Boston Scientific Corporation 401(k) Retirement Savings PlanState Street Salary Savings Program, Total assets ($B): 6.532301643 · Participants: 12777State Street Salary Savings Program
Boston Mutual 401(k) Plan for Salaried Employees vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Boston Mutual 401(k) Plan for Salaried Employees side-by-side with 3 peers →

Boston Mutual 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 Hh Global US 401(k) Savings Plan in IL ($102M); by covered participants it is F.H. Furr Plumbing, Heating & Air Conditioning, Inc. 401(k) Plan in VA (331 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($102M here).

Similar participant headcount

Nearest other-state filings by covered participants (331 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Boston Mutual 401(k) Plan for Salaried Employees assets move in 2024? ▼
Boston Mutual 401(k) Plan for Salaried Employees grew sharply - up 19.0% during 2024, from $86M to $102M. Reported net income was $16M.
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 401(k) Plan for Salaried Employees rank by assets among Form 5500 filers? ▼
Boston Mutual 401(k) Plan for Salaried Employees ranks in the 91st percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Boston Mutual 401(k) Plan for Salaried Employees? ▼
Among 401(k) plans in other states, the closest by assets is Hh Global US 401(k) Savings Plan in IL ($102M, 1,087 participants).
Which 401(k) plans cover a similar participant headcount to Boston Mutual 401(k) Plan for Salaried Employees? ▼
Among 401(k) plans in other states, the closest by covered participants is F.H. Furr Plumbing, Heating & Air Conditioning, Inc. 401(k) Plan in VA (331 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

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.