401(k) · DOL Form 5500 · 2022

Mayer Brown LLP 401(k) Plan

Data updated 2026-08-25

$973M
Total assets Above avg plan size
1,991
Participants Near avg headcount
99th
Percentile by assets National rank
$488,793
Avg per participant High balance/head
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Official DOL plan name: Mayer Brown LLP USA Savings Plan · Sponsored by Mayer Brown LLP · Illinois · Professional & Technical Services

$973M in assets, 1,991 participants

Mayer Brown LLP's Mayer Brown LLP USA Savings Plan reported $973M in total assets and 1,991 participants in its 2022 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.

  • #21,400 in Professional & Technical Services (21,562 peers)

Coverage in Illinois

Mayer Brown LLP USA Savings Plan covers 1,991 participants in Illinois, 2.6x the typical Illinois plan (state average ~779 per filing). Assets: $973M.

#21,400
in Professional & Technical Services (21,562 peers)
-15.9%
assets change YoY
9.8×
vs typical plan assets (national mean)

The plan reported a net loss of $185M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Mayer Brown LLP USA Savings Plan's outsized position by total assets

Mayer Brown LLP USA Savings Plan vs every filed plan by assets

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

$973,187,282 Top 1% higher than 99% 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

Mayer Brown LLP USA Savings Plan's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mayer Brown LLP USA Savings Plan lands in the large band (1,991 participants).

Form 5500 schedule snapshot

Filing strip 361447220 · Mayer Brown LLP PY 2022 · 401(k)

Mayer Brown LLP USA Savings Plan · $973M · 1,991 · 99th

  • 5500 $973M
  • ASSETS 1,991
  • PCT 99th
  • EIN 401(k)
  • RANK near Arkema Inc. Employees' Retirement Savings (401(k)) Plan
  • PHOTO ind #21400

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 Professional & Technical Services retirement plans → · Plans in Illinois →

Mayer Brown LLP USA Savings Plan in the asset neighbourhood

Woodside Energy USA Services Inc. Retirement Savin Gs PlanWoodside Energy USA Services…$976MThe Auto Club Group 401(k) PlanThe Auto Club Group 401(k) P…$975MMayer Brown LLP USA Savings PlanMayer Brown LLP USA Savings …$973MArkema Inc. Employees' Retirement Savings (401(k)) PlanArkema Inc. Employees' Retir…$973MPortland General Electric Company 401(k) PlanPortland General Electric Co…$972M
End-of-year total assets ($M) among Mayer Brown LLP USA Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Illinois filing particulars

Total Assets (Beginning of Year)$1.2B
Net Assets (End of Year)$973M
Net Income-$185M
Employer EIN361447220
Plan Effective Date1985-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mayer Brown LLP)

Sponsor-wide plan assets over time

All Mayer Brown LLP plans reported in each filing year

Latest sponsor-wide plan assets
$1.5B 28.79757869793471% vs 2022
2024 filing year
$1.1B$1.2B$1.3B$1.4B$1.5B$1.6B 202220232024 $1.14B $1.47B ▲ +28.9%
Year Plans Participants Total Assets
2022 2 2,274 $1.1B
2023 2 2,417 $1.3B
2024 2 2,452 $1.5B

Nearby 401(k) Plans in Illinois

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

Mayer Brown LLP USA Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 05101520 Total assets ($B) Participants Mayer Brown LLP USA Savings Plan, Total assets ($B): 0.973187282 · Participants: 1991Mayer Brown LLP USA Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 14.651519685 · Participants: 53616State Farm 401(k) Savings PlanAccenture United States 401(k) Match and Savings Plan, Total assets ($B): 14.283954811 · Participants: 66653Accenture United States 401(k) Match and Savings PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 13.333286 · Participants: 36136Abbott Laboratories Stock Retirement PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 11.816542826 · Participants: 13437United Airlines Pilot Retirement Account PlanWalgreens Retirement Savings Plan, Total assets ($B): 11.682551768 · Participants: 238072Walgreens Retirement Savings Plan
Mayer Brown LLP USA Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Mayer Brown LLP USA Savings Plan side-by-side with 3 peers →

Mayer Brown LLP USA Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Arkema Inc. Employees' Retirement Savings (401(k)) Plan in PA ($973M); by covered participants it is Rose Acre Farms Employees' 401(k) Plan in IN (1,991 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,991 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 Mayer Brown LLP USA Savings Plan assets move in 2022? ▼
Mayer Brown LLP USA Savings Plan declined sharply - down 15.9% during 2022, from $1.2B to $973M. Reported net income was -$185M.
How have Mayer Brown LLP plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mayer Brown LLP's sponsor-wide assets grew 28.8%, from $1.1B to $1.5B.
Where does Mayer Brown LLP USA Savings Plan rank by assets among Form 5500 filers? ▼
Mayer Brown LLP USA Savings Plan ranks in the 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Mayer Brown LLP USA Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Arkema Inc. Employees' Retirement Savings (401(k)) Plan in PA ($973M, 2,793 participants).
Which 401(k) plans cover a similar participant headcount to Mayer Brown LLP USA Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Rose Acre Farms Employees' 401(k) Plan in IN (1,991 participants, $71M 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 361447220.

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.