401(k) · DOL Form 5500 · 2023

Littelfuse, Inc. 401(k) Plan

Data updated 2026-08-11

$244M
Total assets: 1,018
Participants: 95th
Percentile by assets: $239,691
Avg per participant

Official DOL plan name: Littelfuse, Inc. 401(k) Retirement and Savings Plan · Sponsored by Littelfuse, Inc. · Illinois · Manufacturing

$244M in assets, 1,018 participants

Littelfuse, Inc.'s Littelfuse, Inc. 401(k) Retirement and Savings Plan reported $244M in total assets and 1,018 participants in its 2023 DOL Form 5500 filing, ranking in the 95th 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.

95th percentile by assets (of 127,072 plans)
#17,389 in Manufacturing (18,722 peers)

Where Littelfuse, Inc. 401(k) Retirement and Savings Plan sits by assets

Littelfuse, Inc. 401(k) Retirement and Savings Plan sits in the top 5% of all filed plans by assets, $244M for 1,018 participants (~$239,691/participant), up 20.0% in 2023.

$244M
total plan assets (2023 EOY): 1,018
covered participants: 95th
percentile by assets (of 127,072 plans): $239,691
avg assets per participant

Where Littelfuse, Inc. 401(k) Retirement and Savings Plan sits by total assets

Littelfuse, Inc. 401(k) Retirement and Savings Plan vs every filed plan by assets

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

$244,005,379 Top 5% higher than 95% of 127,068 filed plans

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Littelfuse, Inc. 401(k) Retirement and Savings Plan reported net income rose from -$8M in the plan year 2022 filing to $41M in the plan year 2023 filing.
Littelfuse, Inc. 401(k) Retirement and Savings Plan reported participants rose from 698 in the plan year 2022 filing to 1,018 in the plan year 2023 filing.
Littelfuse, Inc. 401(k) Retirement and Savings Plan end-of-year assets rose from $203M in the plan year 2022 filing to $244M in the plan year 2023 filing.

See the national 2022→2023 release diff →

State

Illinois

Industry

Manufacturing

Littelfuse, Inc. 401(k) Retirement and Savings Plan vs the 2023 asset distribution

By assets, Littelfuse, Inc. 401(k) Retirement and Savings Plan outranks 95% of the 127,072 plans that filed a Form 5500 for the 2023 plan year, and holds roughly 2.4x the national average plan size of $100M (721 average participants).

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)	$203M
Net Assets (End of Year)	$244M
Net Income	$41M
Employer EIN	363795742
Plan Effective Date	1993-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Littelfuse, Inc.)

Total plan assets by year, all Littelfuse, Inc. plans on file

Year	Plans	Participants	Total Assets
2022	1	698	$203M
2023	1	1,018	$244M
2024	1	953	$266M

Nearby 401(k) Plans in Illinois

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

Littelfuse, Inc. 401(k) Retirement and Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Accenture United States 401(k) Match Savings Plan $17.6B · 69,974
State Farm 401(k) Savings Plan $16.9B · 60,246
Abbott Laboratories Stock Retirement Plan $14.5B · 38,012
United Airlines Pilot Retirement Account Plan $14.4B · 14,959
Walgreens Retirement Savings Plan $13.4B · 235,331

Compare Littelfuse, Inc. 401(k) Retirement and S… side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Littelfuse, Inc. 401(k) Retirement and Savings Plan by total assets, not by location.

Hikma Pharmaceuticals USA Inc. 401(k) Retirement Plan (NJ) $244M · 1,890
Physicians Mutual Defined Contribution Retirement Plan and Trust (NE) $244M · 981
Tishman Speyer Properties, L.P. 401(k) Savings Plan (NY) $244M · 953
Thrifty Payless, Inc. 401(k) Retirement Savings Plan for Collective Bargaining Pharmacists (PA) $244M · 780

Frequently Asked Questions

How did Littelfuse, Inc. 401(k) Retirement and Savings Plan assets move in 2023? ▼

Littelfuse, Inc. 401(k) Retirement and Savings Plan grew sharply - up 20.0% during 2023, from $203M to $244M. Reported net income was $41M.

How have Littelfuse, Inc. plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Littelfuse, Inc.'s sponsor-wide assets grew 30.8%, from $203M to $266M.

Where does Littelfuse, Inc. 401(k) Retirement and Savings Plan rank by assets among Form 5500 filers? ▼

Littelfuse, Inc. 401(k) Retirement and Savings Plan ranks in the 95th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).

Which 401(k) plans are similar in size to Littelfuse, Inc. 401(k) Retirement and Savings Plan? ▼

Among 401(k) plans in other states, the closest by assets is Hikma Pharmaceuticals USA Inc. 401(k) Retirement Plan in NJ ($244M, 1,890 participants).

Next read for Littelfuse, Inc. 401(k) Retirement and S…

Scale reading

Ways to act on Littelfuse, Inc. 401(k) Retirement and Savings Plan's numbers.

By total assets, Littelfuse, Inc. 401(k) Retirement and Savings 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 Illinois. Compare plans
Littelfuse, Inc.'s sponsor-wide assets have grown 30.8% since 2022 across 3 plan years on file. More Manufacturing plans

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 363795742.