401(k) · DOL Form 5500 · 2023

Marmon Holdings, Inc 401(k) Plan

Data updated 2026-08-25

$1.4B
Total assets Very large vs avg
11,323
Participants Very large workforce
99th
Percentile by assets National rank
$123,684
Avg per participant Near avg balance/head
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Official DOL plan name: Marmon Employees' Retirement Plan · Sponsored by Marmon Holdings, Inc · Illinois · Manufacturing

$1.4B in assets, 11,323 participants

Marmon Holdings, Inc's Marmon Employees' Retirement Plan reported $1.4B in total assets and 11,323 participants in its 2023 DOL Form 5500 filing, ranking in the 99th 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.

  • #18,373 in Manufacturing (18,722 peers)

Coverage in Illinois

Marmon Employees' Retirement Plan covers 11,323 participants in Illinois, 15x the typical Illinois plan (state average ~779 per filing). Assets: $1.4B.

#18,373
in Manufacturing (18,722 peers)
+23.6%
assets growth YoY
14×
vs typical plan assets (national mean)

Marmon Employees' Retirement Plan's outsized position by total assets

Marmon Employees' Retirement Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$1,400,478,891 Top 1% higher than 99% of 127,068 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 2023

Marmon Employees' Retirement Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Marmon Employees' Retirement Plan is a mega filing (11,323 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Marmon Employees' Retirement Plan reported net income rose from -$198M in the plan year 2022 filing to $166M in the plan year 2023 filing.
  • Marmon Employees' Retirement Plan end-of-year assets rose from $1.1B in the plan year 2022 filing to $1.4B in the plan year 2023 filing.
  • Marmon Employees' Retirement Plan reported participants fell from 11,776 in the plan year 2022 filing to 11,323 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 363104690 · Marmon Holdings, Inc PY 2023 · 401(k)

Marmon Employees' Retirement Plan · $1.4B · 11,323 · 99th

  • EBSA $1.4B
  • PART 11,323
  • TYPE 99th
  • NET 401(k)
  • BOOK near Lennar Corporation 401(k) Plan
  • VS-ST ind #18373

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 Illinois →

Marmon Employees' Retirement Plan in the asset neighbourhood

Microchip Technology Incorporated Savings PlanMicrochip Technology Incorpo…$1.4BMarmon Employees' Retirement PlanMarmon Employees' Retirement…$1.4BLennar Corporation 401(k) PlanLennar Corporation 401(k) Pl…$1.4BBeth Israel Deaconess Medical Center, Inc 401(k) Savings and Investment PlanBeth Israel Deaconess Medica…$1.4BAvaya Inc. Savings Plan for Salaried EmployeesAvaya Inc. Savings Plan for …$1.4B
End-of-year total assets ($B) among Marmon Employees' Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Illinois filing particulars

Total Assets (Beginning of Year)$1.1B
Net Assets (End of Year)$1.4B
Net Income$166M
Employer EIN363104690
Plan Effective Date1980-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Marmon Holdings, Inc)

Sponsor-wide plan assets over time

All Marmon Holdings, Inc plans reported in each filing year

Latest sponsor-wide plan assets
$1.7B 49.54418301939037% vs 2022
2024 filing year
$1B$1.2B$1.4B$1.6B$1.8B 202220232024 $1.13B $1.69B ▲ +49.6%
Year Plans Participants Total Assets
2022 1 11,776 $1.1B
2023 1 11,323 $1.4B
2024 1 14,364 $1.7B

Nearby 401(k) Plans in Illinois

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

Marmon Employees' Retirement Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 05101520 Total assets ($B) Participants Marmon Employees' Retirement Plan, Total assets ($B): 1.400478891 · Participants: 11323Marmon Employees' Retirement PlanAccenture United States 401(k) Match Savings Plan, Total assets ($B): 17.594548115 · Participants: 69974Accenture United States 401(k) Match Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 16.935002041 · Participants: 60246State Farm 401(k) Savings PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 14.496191 · Participants: 38012Abbott Laboratories Stock Retirement PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 14.367975914 · Participants: 14959United Airlines Pilot Retirement Account PlanWalgreens Retirement Savings Plan, Total assets ($B): 13.444551767 · Participants: 235331Walgreens Retirement Savings Plan
Marmon Employees' Retirement Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Scale composition for Marmon Employees' Retirement Plan

Marmon Employees' Retirement Plan reports $1.4B in end-of-year assets across 11,323 participants (0.011% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.012% of 93,925,755 covered participants) - about $123,684 per participant (89% of the national average assets-per-participant) . Net income for plan year 2023 was $166M.

This plan identity (EIN 363104690, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.1B to $1.7B (+49.5%) while covered participants moved from 11,776 to 14,364 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 11,776 $1.1B Open filing
2023 11,323 $1.4B This page
2024 · index core 14,364 $1.7B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Marmon Employees' Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Lennar Corporation 401(k) Plan in FL ($1.4B); by covered participants it is Dart Container Corporation Employees' 401(k) Plus Plan in MI (11,324 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (11,323 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Marmon Employees' Retirement Plan assets move in 2023?
Marmon Employees' Retirement Plan grew sharply - up 23.6% during 2023, from $1.1B to $1.4B. Reported net income was $166M.
How have Marmon Holdings, Inc plan assets changed over time?
Across 3 plan years on file (2022-2024), Marmon Holdings, Inc's sponsor-wide assets grew 49.5%, from $1.1B to $1.7B.
Where does Marmon Employees' Retirement Plan rank by assets among Form 5500 filers?
Marmon Employees' Retirement Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Marmon Employees' Retirement Plan?
Among 401(k) plans in other states, the closest by assets is Lennar Corporation 401(k) Plan in FL ($1.4B, 10,681 participants).
Which 401(k) plans cover a similar participant headcount to Marmon Employees' Retirement Plan?
Among 401(k) plans in other states, the closest by covered participants is Dart Container Corporation Employees' 401(k) Plus Plan in MI (11,324 participants, $962M in assets).