401(k) · DOL Form 5500 · 2022

Commonwealth Automobile Reinsurers 401(k) Plan

Data updated 2026-08-25

$24M
Total assets Small plan by assets
48
Participants Small participant base
80th
Percentile by assets National rank
$491,009
Avg per participant High balance/head
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Official DOL plan name: Insurance Organizations' Savings Trust 401(k) Plan · Sponsored by Commonwealth Automobile Reinsurers · Massachusetts · Finance & Insurance

$24M in assets, 48 participants

Commonwealth Automobile Reinsurers's Insurance Organizations' Savings Trust 401(k) Plan reported $24M in total assets and 48 participants in its 2022 DOL Form 5500 filing, ranking in the 80th 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.

  • #6,233 in Finance & Insurance (9,261 peers)

Where Insurance Organizations' Savings Trust 401(k) Plan sits by assets

Insurance Organizations' Savings Trust 401(k) Plan sits in the top quartile of all filed plans by assets, $24M for 48 participants (~$491,009/participant), down 18.4% in 2022.

#6,233
in Finance & Insurance (9,261 peers)
-18.4%
assets change YoY
0.2×
vs typical plan assets (national mean)

The plan reported a net loss of $5M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Insurance Organizations' Savings Trust 401(k) Plan's outsized position by total assets

Insurance Organizations' Savings Trust 401(k) Plan vs every filed plan by assets

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

$23,568,433 Top 20% higher than 80% 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

Insurance Organizations' Savings Trust 401(k) Plan among smaller filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Insurance Organizations' Savings Trust 401(k) Plan is a small filing (48 participants) on this national headcount ladder.

DOL schedule card

Filing strip 042572141 · Commonwealth Automobile Reinsurers PY 2022 · 401(k)

Insurance Organizations' Savings Trust 401(k) Plan · $24M · 48 · 80th

  • BOOK $24M
  • BOOK 48
  • BOOK 80th
  • BOOK 401(k)
  • BOOK near Murcor, Inc. 401(k) Profit Sharing Plan
  • BOOK ind #6233

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 →

Insurance Organizations' Savings Trust 401(k) Plan in the asset neighbourhood

Insurance Organizations' Savings Trust 401(k) PlanInsurance Organizations' Sav…$24MMurcor, Inc. 401(k) Profit Sharing PlanMurcor, Inc. 401(k) Profit S…$24MContinental Properties Company, Inc. 401(k) Savings PlanContinental Properties Compa…$24MTravelopia USA, Inc. 401(k) PlanTravelopia USA, Inc. 401(k) …$24MHoran Associates, Inc. Profit Sharing 401(k) PlanHoran Associates, Inc. Profi…$24M
End-of-year total assets ($M) among Insurance Organizations' Savings Trust 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$29M
Net Assets (End of Year)$24M
Net Income-$5M
Employer EIN042572141
Plan Effective Date1978-05-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Commonwealth Automobile Reinsurers)

Sponsor-wide plan assets over time

All Commonwealth Automobile Reinsurers plans reported in each filing year

Latest sponsor-wide plan assets
$25M 7.537709443814106% vs 2022
2024 filing year
$23M$24M$25M$26M$27M 202220232024 $23.6M $25.3M ▲ +7.5%
Year Plans Participants Total Assets
2022 1 48 $24M
2023 1 46 $26M
2024 1 44 $25M

Nearby 401(k) Plans in Massachusetts

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

Insurance Organizations' Savings Trust 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Insurance Organizations' Savings Trust 401(k) Plan, Total assets ($B): 0.023568433 · Participants: 48Insurance Organizations' Savings Trust 401(k) PlanFidelity 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
Insurance Organizations' Savings Trust 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Insurance Organizations' Savings Trust 401(k) Plan side-by-side with 3 peers →

Insurance Organizations' Savings Trust 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Murcor, Inc. 401(k) Profit Sharing Plan in CA ($24M); by covered participants it is Bath State Bancorp Employee Stock Ownership Plan with 401(k) Provisions in IN (48 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (48 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 Insurance Organizations' Savings Trust 401(k) Plan assets move in 2022? ▼
Insurance Organizations' Savings Trust 401(k) Plan declined sharply - down 18.4% during 2022, from $29M to $24M. Reported net income was -$5M.
How have Commonwealth Automobile Reinsurers plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Commonwealth Automobile Reinsurers's sponsor-wide assets grew 7.5%, from $24M to $25M.
Where does Insurance Organizations' Savings Trust 401(k) Plan rank by assets among Form 5500 filers? ▼
Insurance Organizations' Savings Trust 401(k) Plan ranks in the 80th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Insurance Organizations' Savings Trust 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Murcor, Inc. 401(k) Profit Sharing Plan in CA ($24M, 236 participants).
Which 401(k) plans cover a similar participant headcount to Insurance Organizations' Savings Trust 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Bath State Bancorp Employee Stock Ownership Plan with 401(k) Provisions in IN (48 participants, $8M 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 042572141.

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.