401(k) · DOL Form 5500 · 2022
Plymouth Rock Assurance Corporation 401(k) Plan
Data updated 2026-08-11
- $383M
- Total assets
- 1,818
- Participants
- 97th
- Percentile by assets
- $210,835
- Avg per participant
Official DOL plan name: The Plymouth Rock Companies Savings and Investment Plan · Sponsored by Plymouth Rock Assurance Corporation · Massachusetts · Finance & Insurance
$383M in assets, 1,818 participants
Plymouth Rock Assurance Corporation's The Plymouth Rock Companies Savings and Investment Plan reported $383M in total assets and 1,818 participants in its 2022 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.
- 97th percentile by assets (of 139,126 plans)
- #8,827 in Finance & Insurance (9,261 peers)
Coverage in Massachusetts
The Plymouth Rock Companies Savings and Investment Plan covers 1,818 participants in Massachusetts, 2.8x the typical Massachusetts plan (state average ~659 per filing). Assets: $383M.
- $383M
- total plan assets (2022 EOY)
- 1,818
- covered participants
- 97th
- percentile by assets (of 139,126 plans)
- $210,835
- avg assets per participant
The plan reported a net loss of $71M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Participants vs Massachusetts filers
In Massachusetts, the average filing covers about 659 participants across 4,265 plans. The Plymouth Rock Companies Savings and Investment Plan reports 1,818 participants - 2.8x that state average ($383M EOY assets).
Massachusetts filing particulars
| Total Assets (Beginning of Year) | $455M |
|---|---|
| Net Assets (End of Year) | $383M |
| Net Income | -$71M |
| Employer EIN | 042800590 |
| Plan Effective Date | 1986-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Plymouth Rock Assurance Corporation)
| 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
- Fidelity Retirement Savings Plan $23.0B · 52,036
- Liberty Mutual 401(k) Plan $8.8B · 32,843
- Massachusetts Institute of Technology Supplemental 401(k) Plan $5.8B · 13,690
- Philips North America 401(k) Plan $5.2B · 19,750
- Boston Scientific Corporation 401(k) Retirement Savings Plan $4.9B · 18,359
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to The Plymouth Rock Companies Savings and Investment Plan by total assets, not by location.
- Tetra Pak Retirement Savings Plan (IL) $383M · 1,474
- American Eagle Outfitters, Inc. Profit Sharing and 401(k) Plan (PA) $384M · 8,028
- Dewberry 401(k)/Profit-Sharing Plan (VA) $383M · 2,314
- Hawaiian Airlines, Inc. 401(k) Savings Plan (HI) $383M · 3,905
Frequently Asked Questions
How did The Plymouth Rock Companies Savings and Investment Plan assets move in 2022? ▼
How have Plymouth Rock Assurance Corporation plan assets changed over time? ▼
Where does The Plymouth Rock Companies Savings and Investment Plan rank by assets among Form 5500 filers? ▼
Which 401(k) plans are similar in size to The Plymouth Rock Companies Savings and Investment Plan? ▼
Next read for The Plymouth Rock Companies Savings and …
Filing takeaways
Ways to act on The Plymouth Rock Companies Savings and Investment Plan's numbers.
- By total assets, The Plymouth Rock Companies Savings and Investment Plan ranks in the top 5% of all filed plans by assets. See the largest plans
- Compare it side-by-side against 3 similar 401(k) plans in Massachusetts. Compare plans
- Plymouth Rock Assurance Corporation's sponsor-wide assets have grown 31.8% since 2022 across 3 plan years on file. More Finance & Insurance plans