401(k) · DOL Form 5500 · 2023

Arthur J. Gallagher (Illinios), LLC. 401(k) Plan

Data updated 2026-08-11

$3.2B
Total assets
20,416
Participants
100th
Percentile by assets
$158,619
Avg per participant
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Official DOL plan name: Arthur J. Gallagher & Co. Employees Savings and Thrift Plan · Sponsored by Arthur J. Gallagher (Illinios), LLC. · Illinois · Finance & Insurance

$3.2B in assets, 20,416 participants

Arthur J. Gallagher (Illinios), LLC.'s Arthur J. Gallagher & Co. Employees Savings and Thrift Plan reported $3.2B in total assets and 20,416 participants in its 2023 DOL Form 5500 filing, ranking in the 100th 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.

  • 100th percentile by assets (of 127,072 plans)
  • #8,788 in Finance & Insurance (8,869 peers)

Coverage in Illinois

Arthur J. Gallagher & Co. Employees Savings and Thrift Plan covers 20,416 participants in Illinois, 26x the typical Illinois plan (state average ~779 per filing). Assets: $3.2B.

$3.2B
total plan assets (2023 EOY)
20,416
covered participants
100th
percentile by assets (of 127,072 plans)
$158,619
avg assets per participant

Where Arthur J. Gallagher & Co. Employees Savings and Thrift Plan sits by total assets

Arthur J. Gallagher & Co. Employees Savings and Thrift Plan vs every filed plan by assets

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

$3,238,355,508 Top 1% higher than 100% of 127,068 filed plans

This plan $0 $2,010,000,000 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

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Arthur J. Gallagher & Co. Employees Savings and Thrift Plan reported net income rose from -$350M in the plan year 2022 filing to $455M in the plan year 2023 filing.
  • Arthur J. Gallagher & Co. Employees Savings and Thrift Plan end-of-year assets rose from $2.8B in the plan year 2022 filing to $3.2B in the plan year 2023 filing.
  • Arthur J. Gallagher & Co. Employees Savings and Thrift Plan reported participants rose from 18,665 in the plan year 2022 filing to 20,416 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State

Participants vs Illinois filers

In Illinois, the average filing covers about 779 participants across 5,745 plans. Arthur J. Gallagher & Co. Employees Savings and Thrift Plan reports 20,416 participants - 26x that state average ($3.2B EOY assets).

Illinois filing particulars

Total Assets (Beginning of Year)$2.8B
Net Assets (End of Year)$3.2B
Net Income$455M
Employer EIN362481781
Plan Effective Date1966-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Arthur J. Gallagher (Illinios), LLC.)

$2.5B$3B$3.5B$4B$4.5B 202220232024 $2.99B $4.21B ▲ +40.8%
Total plan assets by year, all Arthur J. Gallagher (Illinios), LLC. plans on file
Year Plans Participants Total Assets
2022 2 19,846 $3.0B
2023 2 21,466 $3.5B
2024 2 24,229 $4.2B

Nearby 401(k) Plans in Illinois

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

Arthur J. Gallagher & Co. Employees Savings and Thrift Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Arthur J. Gallagher & Co. Employees Savings and Thrift Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 05101520 Total assets ($B) Participants Arthur J. Gallagher …Accenture United Sta…State Farm 401(k) Sa…Abbott Laboratories …United Airlines Pilo…Walgreens Retirement…
Arthur J. Gallagher & Co. Employees Savings and Thrift Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Scale composition for Arthur J. Gallagher & Co. Employees Savings and Thrift Plan

Arthur J. Gallagher & Co. Employees Savings and Thrift Plan reports $3.2B in end-of-year assets across 20,416 participants (0.026% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.022% of 93,925,755 covered participants) - about $158,619 per participant (1.1x the national average assets-per-participant) . Net income for plan year 2023 was $455M.

This plan identity (EIN 362481781, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $2.8B to $3.9B (+40.2%) while covered participants moved from 18,665 to 23,247 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 18,665 $2.8B Open filing
2023 20,416 $3.2B This page
2024 · index core 23,247 $3.9B Open filing

The same sponsor also keeps 2 other index-core plans on PlainRetire:

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Arthur J. Gallagher & Co. Employees Savings and Thrift Plan by total assets, not by location.

Frequently Asked Questions

How did Arthur J. Gallagher & Co. Employees Savings and Thrift Plan assets move in 2023?
Arthur J. Gallagher & Co. Employees Savings and Thrift Plan grew sharply - up 16.5% during 2023, from $2.8B to $3.2B. Reported net income was $455M.
How have Arthur J. Gallagher (Illinios), LLC. plan assets changed over time?
Across 3 plan years on file (2022-2024), Arthur J. Gallagher (Illinios), LLC.'s sponsor-wide assets grew 40.7%, from $3.0B to $4.2B.
Where does Arthur J. Gallagher & Co. Employees Savings and Thrift Plan rank by assets among Form 5500 filers?
Arthur J. Gallagher & Co. Employees Savings and Thrift Plan ranks in the 100th 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 Arthur J. Gallagher & Co. Employees Savings and Thrift Plan?
Among 401(k) plans in other states, the closest by assets is Dupont Retirement Savings Plan in DE ($3.2B, 9,918 participants).

Next read for Arthur J. Gallagher & Co. Employees Savi…

Filing takeaways

Ways to act on Arthur J. Gallagher & Co. Employees Savings and Thrift Plan's numbers.

  • By total assets, Arthur J. Gallagher & Co. Employees Savings and Thrift Plan ranks among the largest 1% of all filed plans. See the largest plans
  • Compare it side-by-side against 3 similar 401(k) plans in Illinois. Compare plans
  • Arthur J. Gallagher (Illinios), LLC.'s sponsor-wide assets have grown 40.7% since 2022 across 3 plan years on file. More Finance & Insurance plans