401(k) · DOL Form 5500 · 2022

Cox Engineering Company 401(k) Plan

Data updated 2026-08-25

$17M
Total assets Small plan by assets
95
Participants Small participant base
75th
Percentile by assets National rank
$176,966
Avg per participant Above avg balance/head
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Official DOL plan name: Cox Engineering Company 401(k) Plan and Trust · Sponsored by Cox Engineering Company · Massachusetts · Manufacturing

$17M in assets, 95 participants

Cox Engineering Company's Cox Engineering Company 401(k) Plan and Trust reported $17M in total assets and 95 participants in its 2022 DOL Form 5500 filing, ranking in the 75th 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.

  • #13,270 in Manufacturing (20,602 peers)

Where Cox Engineering Company 401(k) Plan and Trust sits by assets

Cox Engineering Company 401(k) Plan and Trust sits in the top quartile of all filed plans by assets, $17M for 95 participants (~$176,966/participant), down 13.8% in 2022.

#13,270
in Manufacturing (20,602 peers)
-13.8%
assets change YoY
0.2×
vs typical plan assets (national mean)

The plan reported a net loss of $3M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Cox Engineering Company 401(k) Plan and Trust's outsized position by total assets

Cox Engineering Company 401(k) Plan and Trust vs every filed plan by assets

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

$16,811,731 Top 25% higher than 75% 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

Cox Engineering Company 401(k) Plan and Trust among smaller filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Cox Engineering Company 401(k) Plan and Trust is a small filing (95 participants) on this national headcount ladder.

EBSA filing schedule strip

Filing strip 042017923 · Cox Engineering Company PY 2022 · 401(k)

Cox Engineering Company 401(k) Plan and Trust · $17M · 95 · 75th

  • VS-ST $17M
  • VS-ST 95
  • VS-ST 75th
  • VS-ST 401(k)
  • VS-ST near Merck Sharp and Dohme Federal Credit Union 401(k) Plan
  • VS-ST ind #13270

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 Manufacturing retirement plans → · Plans in Massachusetts →

Cox Engineering Company 401(k) Plan and Trust in the asset neighbourhood

Cox Engineering Company 401(k) Plan and TrustCox Engineering Company 401(…$17MMerck Sharp and Dohme Federal Credit Union 401(k) PlanMerck Sharp and Dohme Federa…$17MCommunity Alternatives Unlimited 401(k) PlanCommunity Alternatives Unlim…$17MPearl Technology, LLC Retirement & Savings PlanPearl Technology, LLC Retire…$17MTucci & Sons, Inc. 401(k) Profit Sharing Plan and TrustTucci & Sons, Inc. 401(k) Pr…$17M
End-of-year total assets ($M) among Cox Engineering Company 401(k) Plan and Trust and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$20M
Net Assets (End of Year)$17M
Net Income-$3M
Employer EIN042017923
Plan Effective Date1981-11-27
Filing StatusFILING RECEIVED

Sponsor Plan History (Cox Engineering Company)

Sponsor-wide plan assets over time

All Cox Engineering Company plans reported in each filing year

Latest sponsor-wide plan assets
$29M 72.60204793902544% vs 2022
2024 filing year
$15M$20M$25M$30M$35M 202220232024 $16.8M $29M ▲ +72.6%
Year Plans Participants Total Assets
2022 1 95 $17M
2023 1 113 $23M
2024 1 155 $29M

Nearby 401(k) Plans in Massachusetts

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

Cox Engineering Company 401(k) Plan and Trust vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Cox Engineering Company 401(k) Plan and Trust, Total assets ($B): 0.016811731 · Participants: 95Cox Engineering Company 401(k) Plan and TrustFidelity 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
Cox Engineering Company 401(k) Plan and Trust vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Cox Engineering Company 401(k) Plan and Trust side-by-side with 3 peers →

Cox Engineering Company 401(k) Plan and Trust's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Merck Sharp and Dohme Federal Credit Union 401(k) Plan in PA ($17M); by covered participants it is La Rosa Del Monte Express (New York), LLC 401(k) Profit Sharing Plan & Trust in NY (95 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (95 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 Cox Engineering Company 401(k) Plan and Trust assets move in 2022? ▼
Cox Engineering Company 401(k) Plan and Trust pulled back noticeably - down 13.8% during 2022, from $20M to $17M. Reported net income was -$3M.
How have Cox Engineering Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Cox Engineering Company's sponsor-wide assets grew 72.6%, from $17M to $29M.
Where does Cox Engineering Company 401(k) Plan and Trust rank by assets among Form 5500 filers? ▼
Cox Engineering Company 401(k) Plan and Trust ranks in the 75th 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 Cox Engineering Company 401(k) Plan and Trust? ▼
Among 401(k) plans in other states, the closest by assets is Merck Sharp and Dohme Federal Credit Union 401(k) Plan in PA ($17M, 80 participants).
Which 401(k) plans cover a similar participant headcount to Cox Engineering Company 401(k) Plan and Trust? ▼
Among 401(k) plans in other states, the closest by covered participants is La Rosa Del Monte Express (New York), LLC 401(k) Profit Sharing Plan & Trust in NY (95 participants, $2M 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 042017923.

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.