401(k) · DOL Form 5500 · 2023

Littelfuse, Inc. 401(k) Plan

Data updated 2026-08-25

$244M
Total assets Near avg plan size
1,018
Participants Near avg headcount
95th
Percentile by assets National rank
$239,691
Avg per participant Above avg balance/head
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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.

  • #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.

#17,389
in Manufacturing (18,722 peers)
+20.0%
assets growth YoY
2.4×
vs typical plan assets (national mean)

Littelfuse, Inc. 401(k) Retirement and Savings Plan's outsized position 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

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

Littelfuse, Inc. 401(k) Retirement and Savings Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Littelfuse, Inc. 401(k) Retirement and Savings Plan lands in the large band (1,018 participants).

What changed between DOL Form 5500 filings

plan year 2022 → 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 →

Form 5500 schedule snapshot

Filing strip 363795742 · Littelfuse, Inc. PY 2023 · 401(k)

Littelfuse, Inc. 401(k) Retirement and Savings Plan · $244M · 1,018 · 95th

  • VS-ST $244M
  • BOY 1,018
  • SCH 95th
  • EBSA 401(k)
  • PART near Hikma Pharmaceuticals USA Inc. 401(k) Retirement Plan
  • TYPE ind #17389

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 →

Littelfuse, Inc. 401(k) Retirement and Savings Plan in the asset neighbourhood

Thrifty Payless, Inc. 401(k) Retirement Savings Plan for Collective Bargaining PharmacistsThrifty Payless, Inc. 401(k)…$244MPhysicians Mutual Defined Contribution Retirement Plan and TrustPhysicians Mutual Defined Co…$244MHikma Pharmaceuticals USA Inc. 401(k) Retirement PlanHikma Pharmaceuticals USA In…$244MLittelfuse, Inc. 401(k) Retirement and Savings PlanLittelfuse, Inc. 401(k) Reti…$244MTishman Speyer Properties, L.P. 401(k) Savings PlanTishman Speyer Properties, L…$244M
End-of-year total assets ($M) among Littelfuse, Inc. 401(k) Retirement and Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$203M
Net Assets (End of Year)$244M
Net Income$41M
Employer EIN363795742
Plan Effective Date1993-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Littelfuse, Inc.)

Sponsor-wide plan assets over time

All Littelfuse, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$266M 30.839173714698525% vs 2022
2024 filing year
$180M$200M$220M$240M$260M$280M 202220232024 $203M $266M ▲ +30.8%
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 Scatter plot of 6 data points. -1000000100000200000300000 -505101520 Total assets ($B) Participants Littelfuse, Inc. 401(k) Retirement and Savings Plan, Total assets ($B): 0.244005379 · Participants: 1018Littelfuse, Inc. 401(k) Retirement and Savings 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
Littelfuse, Inc. 401(k) Retirement and Savings Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Littelfuse, Inc. 401(k) Retirement and Savings Plan side-by-side with 3 peers →

Littelfuse, Inc. 401(k) Retirement and Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Hikma Pharmaceuticals USA Inc. 401(k) Retirement Plan in NJ ($244M); by covered participants it is Penn Mutual Retirement & Savings Plan in PA (1,018 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,018 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 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).
Which 401(k) plans cover a similar participant headcount to Littelfuse, Inc. 401(k) Retirement and Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Penn Mutual Retirement & Savings Plan in PA (1,018 participants, $401M in assets).

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.

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.