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

Silicon Laboratories Inc. 401(k) Plan Facts

Plan name
SILICON LABORATORIES INC. 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
SILICON LABORATORIES INC.
Participants
1,228 (674 active employees)
Former employees with a balance
520
Plan assets
$265,248,382 at Dec 31, 2024
Average account balance
$235,358 across 1,127 accounts
Employer contributions
$3,000,931 in plan year 2024 (19% of all contributions)
Recordkeeper
Schwab Retirement Plan Services,inc
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1997
✓ 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 2, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $16.1 million went into the plan in contributions, $3.00 million of it from the employer (19%).
  • $20.4 million was paid out to participants.
  • Investment and other income added $33.0 million.
  • Administrative expenses were $182,941, about $162 per account.

How the Silicon Laboratories Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20191,170$206.9 million$3.94 million$8.72 million
20201,229$241.8 million$4.20 million$17.6 million
20211,276$251.8 million$3.55 million$43.4 million
20221,186$208.6 million$3.16 million$13.6 million
20231,279$236.7 million$3.27 million$27.7 million
20241,228$265.2 million$3.00 million$20.4 million

Silicon Laboratories Inc. 401(k) Contact Information

Phone
512-416-8500
Mailing address
400 WEST CESAR CHAVEZ STREET, AUSTIN TX 78701
Plan sponsor
SILICON LABORATORIES INC.
Employer identification number (EIN)
74-2793174
Plan number
001

Questions about the Silicon Laboratories Inc. 401(k)

Does Silicon Laboratories Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $3.00 million, 19% of all contributions.

Does the Silicon Laboratories Inc 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Silicon Laboratories Inc 401(k) plan?

1,228 participants at the start of plan year 2024, 674 of them active employees, and 520 former employees who still had money in the plan.

What is the average 401(k) balance at Silicon Laboratories Inc?

About $235,358 per account: $265.2 million in plan assets across 1,127 accounts with a balance at the end of plan year 2024.

Who manages the Silicon Laboratories Inc 401(k) accounts?

Schwab Retirement Plan Services (listed on the filing as SCHWAB RETIREMENT PLAN SERVICES,INC) is the plan's recordkeeper, which is where participants log in to see their balance.

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

Your account stays with Schwab Retirement Plan Services 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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