Littelfuse, Inc. 401(k) Plan: Login, Facts & Contact Information

Littelfuse, Inc. 401(k) Plan Facts

Plan name
LITTELFUSE, INC. 401(K) RETIREMENT AND SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
LITTELFUSE, INC.
Participants
1,474 (835 active employees)
Former employees with a balance
468
Plan assets
$266,069,700 at Dec 31, 2024
Average account balance
$194,780 across 1,366 accounts
Employer contributions
$5,977,339 in plan year 2024 (34% of all contributions)
Recordkeeper
T Rowe Price Rps Inc
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1993
Employer contributions Automatic enrollment Default investment for undecided participants Participants choose their own investments Self-directed brokerage window Profit sharing Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Oct 7, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $17.4 million went into the plan in contributions, $5.98 million of it from the employer (34%).
  • $28.8 million was paid out to participants.
  • Investment and other income added $33.7 million.
  • Administrative expenses were $121,538, about $89 per account.

How the Littelfuse, Inc. 401(k) changed, 20192024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20191,316$164.3 million$5.18 million$19.6 million
20201,262$187.6 million$4.36 million$18.6 million
20211,198$211.8 million$4.40 million$16.4 million
20221,430$203.4 million$6.59 million$13.3 million
20231,522$244.0 million$6.99 million$18.1 million
20241,474$266.1 million$5.98 million$28.8 million

Littelfuse, Inc. 401(k) Contact Information

Phone
773-628-1000
Mailing address
6133 N RIVER ROAD STE 500, ROSEMONT IL 60018
Plan sponsor
LITTELFUSE, INC.
Plan administrator
GLOBAL BENEFITS COMMITTEE
Employer identification number (EIN)
36-3795742
Plan number
002

Questions about the Littelfuse, Inc. 401(k)

Does Littelfuse, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $5.98 million, 34% of all contributions.

Does the Littelfuse, Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Littelfuse, Inc 401(k) plan?

1,474 participants at the start of plan year 2024, 835 of them active employees, and 468 former employees who still had money in the plan.

What is the average 401(k) balance at Littelfuse, Inc?

About $194,780 per account: $266.1 million in plan assets across 1,366 accounts with a balance at the end of plan year 2024.

Who manages the Littelfuse, Inc 401(k) accounts?

T. Rowe Price (listed on the filing as T ROWE PRICE RPS INC) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Littelfuse, Inc. How do I access my 401(k)?

Your account stays with T. Rowe Price after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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