401(k) · DOL Form 5500 · 2024

Plymouth Rock Assurance Corporation 401(k) Plan

Data updated 2026-08-25

$505M
Total assets Above avg plan size
1,890
Participants Near avg headcount
97th
Percentile by assets National rank
$267,367
Avg per participant High balance/head
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Official DOL plan name: The Plymouth Rock Companies Savings and Investment Plan · Sponsored by Plymouth Rock Assurance Corporation · Massachusetts · Finance & Insurance

$505M in assets, 1,890 participants

Plymouth Rock Assurance Corporation's The Plymouth Rock Companies Savings and Investment Plan reported $505M in total assets and 1,890 participants in its 2024 DOL Form 5500 filing, ranking in the 97th 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.

  • #8,126 in Finance & Insurance (8,549 peers)

Coverage in Massachusetts

The Plymouth Rock Companies Savings and Investment Plan covers 1,890 participants in Massachusetts, 2.9x the typical Massachusetts plan (state average ~659 per filing). Assets: $505M.

#8,126
in Finance & Insurance (8,549 peers)
+12.2%
assets growth YoY
5.1×
vs typical plan assets (national mean)

The Plymouth Rock Companies Savings and Investment Plan's outsized position by total assets

The Plymouth Rock Companies Savings and Investment Plan vs every filed plan by assets

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

$505,323,263 Top 3% higher than 97% 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

The Plymouth Rock Companies Savings and Investment Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. The Plymouth Rock Companies Savings and Investment Plan lands in the large band (1,890 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • The Plymouth Rock Companies Savings and Investment Plan reported net income fell from $67M in the plan year 2023 filing to $55M in the plan year 2024 filing.
  • The Plymouth Rock Companies Savings and Investment Plan end-of-year assets rose from $450M in the plan year 2023 filing to $505M in the plan year 2024 filing.
  • The Plymouth Rock Companies Savings and Investment Plan reported participants rose from 1,783 in the plan year 2023 filing to 1,890 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 042800590 · Plymouth Rock Assurance Corporation PY 2024 · 401(k)

The Plymouth Rock Companies Savings and Investment Plan · $505M · 1,890 · 97th

  • ASSETS $505M
  • PCT 1,890
  • EIN 97th
  • RANK 401(k)
  • PHOTO near Holt Companies Retirement Plan
  • IND ind #8126

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 →

The Plymouth Rock Companies Savings and Investment Plan in the asset neighbourhood

Circle K Retirement Plan$506MNcci Holdings, Inc. 401(k) Savings PlanNcci Holdings, Inc. 401(k) S…$506MThe Plymouth Rock Companies Savings and Investment PlanThe Plymouth Rock Companies …$505MHolt Companies Retirement PlanHolt Companies Retirement Pl…$505MWolfspeed, Inc. 401(k) Plan$505M
End-of-year total assets ($M) among The Plymouth Rock Companies Savings and Investment Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Massachusetts filing particulars

Total Assets (Beginning of Year)$450M
Net Assets (End of Year)$505M
Net Income$55M
Employer EIN042800590
Plan Effective Date1986-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Plymouth Rock Assurance Corporation)

Sponsor-wide plan assets over time

All Plymouth Rock Assurance Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$505M 31.835434582886396% vs 2022
2024 filing year
$350M$400M$450M$500M$550M 202220232024 $383M $505M ▲ +31.8%
Year Plans Participants Total Assets
2022 1 1,818 $383M
2023 1 1,783 $450M
2024 1 1,890 $505M

Nearby 401(k) Plans in Massachusetts

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

The Plymouth Rock Companies Savings and Investment Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants The Plymouth Rock Companies Savings and Investment Plan, Total assets ($B): 0.505323263 · Participants: 1890The Plymouth Rock Companies Savings and Investment 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
The Plymouth Rock Companies Savings and Investment Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants

The Plymouth Rock Companies Savings and Investment Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Holt Companies Retirement Plan in TX ($505M); by covered participants it is Fortune Brands Innovations Hourly Employee Retirement Savings Plan in IL (1,890 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($505M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,890 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 The Plymouth Rock Companies Savings and Investment Plan assets move in 2024? ▼
The Plymouth Rock Companies Savings and Investment Plan grew at a solid clip - up 12.2% during 2024, from $450M to $505M. Reported net income was $55M.
How have Plymouth Rock Assurance Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Plymouth Rock Assurance Corporation's sponsor-wide assets grew 31.8%, from $383M to $505M.
Where does The Plymouth Rock Companies Savings and Investment Plan rank by assets among Form 5500 filers? ▼
The Plymouth Rock Companies Savings and Investment Plan ranks in the 97th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to The Plymouth Rock Companies Savings and Investment Plan? ▼
Among 401(k) plans in other states, the closest by assets is Holt Companies Retirement Plan in TX ($505M, 4,257 participants).
Which 401(k) plans cover a similar participant headcount to The Plymouth Rock Companies Savings and Investment Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Fortune Brands Innovations Hourly Employee Retirement Savings Plan in IL (1,890 participants, $68M in assets).