401(k) · DOL Form 5500 · 2024

Safety Insurance Company 401(k) Plan

Data updated 2026-08-25

$206M
Total assets Near avg plan size
595
Participants Below avg headcount
94th
Percentile by assets National rank
$345,879
Avg per participant High balance/head
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Official DOL plan name: Safety Insurance Company 401(k) Retirement Plan · Sponsored by Safety Insurance Company · Massachusetts · Finance & Insurance

$206M in assets, 595 participants

Safety Insurance Company's Safety Insurance Company 401(k) Retirement Plan reported $206M in total assets and 595 participants in its 2024 DOL Form 5500 filing, ranking in the 94th 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.

  • #7,778 in Finance & Insurance (8,549 peers)

Where Safety Insurance Company 401(k) Retirement Plan sits by assets

Safety Insurance Company 401(k) Retirement Plan sits in the top 10% of all filed plans by assets, $206M for 595 participants (~$345,879/participant), up 10.9% in 2024.

#7,778
in Finance & Insurance (8,549 peers)
+10.9%
assets growth YoY
2.1×
vs typical plan assets (national mean)

Safety Insurance Company 401(k) Retirement Plan's outsized position by total assets

Safety Insurance Company 401(k) Retirement Plan vs every filed plan by assets

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

$205,798,126 Top 6% higher than 94% 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

Safety Insurance Company 401(k) Retirement Plan 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. Safety Insurance Company 401(k) Retirement Plan sits mid-pack in the medium band (595 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Safety Insurance Company 401(k) Retirement Plan reported net income fell from $30M in the plan year 2023 filing to $20M in the plan year 2024 filing.
  • Safety Insurance Company 401(k) Retirement Plan end-of-year assets rose from $186M in the plan year 2023 filing to $206M in the plan year 2024 filing.
  • Safety Insurance Company 401(k) Retirement Plan reported participants rose from 539 in the plan year 2023 filing to 595 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 042689624 · Safety Insurance Company PY 2024 · 401(k)

Safety Insurance Company 401(k) Retirement Plan · $206M · 595 · 94th

  • EIN $206M
  • RANK 595
  • PHOTO 94th
  • IND 401(k)
  • EOY near Ipsen Biopharmaceuticals, Inc. U.S. 401(k) Plan
  • 5500 ind #7778

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 →

Safety Insurance Company 401(k) Retirement Plan in the asset neighbourhood

Data Recognition Corporation Employees' Benefits Plan and TrustData Recognition Corporation…$206MIpsen Biopharmaceuticals, Inc. U.S. 401(k) PlanIpsen Biopharmaceuticals, In…$206MSafety Insurance Company 401(k) Retirement PlanSafety Insurance Company 401…$206MClifford Chance US LLP Tax-Deferred Savings and Profit-Sharing Plan IClifford Chance US LLP Tax-D…$206MCascade Corporation Savings and Investment PlanCascade Corporation Savings …$206M
End-of-year total assets ($M) among Safety Insurance Company 401(k) Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$186M
Net Assets (End of Year)$206M
Net Income$20M
Employer EIN042689624
Plan Effective Date1972-11-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Safety Insurance Company)

Sponsor-wide plan assets over time

All Safety Insurance Company plans reported in each filing year

Latest sponsor-wide plan assets
$206M 31.876692657249073% vs 2022
2024 filing year
$140M$160M$180M$200M$220M 202220232024 $156M $206M ▲ +31.9%
Year Plans Participants Total Assets
2022 1 558 $156M
2023 1 539 $186M
2024 1 595 $206M

Nearby 401(k) Plans in Massachusetts

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

Safety Insurance Company 401(k) Retirement Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Safety Insurance Company 401(k) Retirement Plan, Total assets ($B): 0.205798126 · Participants: 595Safety Insurance Company 401(k) Retirement PlanFidelity 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
Safety Insurance Company 401(k) Retirement Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants

Safety Insurance Company 401(k) Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Ipsen Biopharmaceuticals, Inc. U.S. 401(k) Plan in NJ ($206M); by covered participants it is Knightvest 401(k) Plan in TX (595 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (595 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 Safety Insurance Company 401(k) Retirement Plan assets move in 2024?
Safety Insurance Company 401(k) Retirement Plan grew at a solid clip - up 10.9% during 2024, from $186M to $206M. Reported net income was $20M.
How have Safety Insurance Company plan assets changed over time?
Across 3 plan years on file (2022-2024), Safety Insurance Company's sponsor-wide assets grew 31.9%, from $156M to $206M.
Where does Safety Insurance Company 401(k) Retirement Plan rank by assets among Form 5500 filers?
Safety Insurance Company 401(k) Retirement Plan ranks in the 94th 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 Safety Insurance Company 401(k) Retirement Plan?
Among 401(k) plans in other states, the closest by assets is Ipsen Biopharmaceuticals, Inc. U.S. 401(k) Plan in NJ ($206M, 692 participants).
Which 401(k) plans cover a similar participant headcount to Safety Insurance Company 401(k) Retirement Plan?
Among 401(k) plans in other states, the closest by covered participants is Knightvest 401(k) Plan in TX (595 participants, $12M in assets).