401(k) · DOL Form 5500 · 2022

Monolithic Power Systems, Inc. 401(k) Plan

Data updated 2026-08-25

$55M
Total assets Below avg plan size
306
Participants Below avg headcount
89th
Percentile by assets National rank
$178,166
Avg per participant Above avg balance/head
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Official DOL plan name: Monolithic Power Systems, Inc. 401(k) Savings Plan · Sponsored by Monolithic Power Systems, Inc. · California · Manufacturing

$55M in assets, 306 participants

Monolithic Power Systems, Inc.'s Monolithic Power Systems, Inc. 401(k) Savings Plan reported $55M in total assets and 306 participants in its 2022 DOL Form 5500 filing, ranking in the 89th 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.

  • #17,158 in Manufacturing (20,602 peers)

Coverage in California

Monolithic Power Systems, Inc. 401(k) Savings Plan covers 306 participants in California, about 49% of the average California filer (state average ~630 per filing). Assets: $55M.

#17,158
in Manufacturing (20,602 peers)
-15.3%
assets change YoY
0.5×
vs typical plan assets (national mean)

The plan reported a net loss of $10M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Monolithic Power Systems, Inc. 401(k) Savings Plan's outsized position by total assets

Monolithic Power Systems, Inc. 401(k) Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$54,518,649 Top 11% higher than 89% of 139,123 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 2022

Monolithic Power Systems, Inc. 401(k) Savings Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Monolithic Power Systems, Inc. 401(k) Savings Plan sits mid-pack in the medium band (306 participants).

DOL schedule card

Filing strip 770466789 · Monolithic Power Systems, Inc. PY 2022 · 401(k)

Monolithic Power Systems, Inc. 401(k) Savings Plan · $55M · 306 · 89th

  • EOY $55M
  • 5500 306
  • ASSETS 89th
  • PCT 401(k)
  • EIN near Emco Chemical Distributors, Inc. 401(k) Profit Sharing Plan
  • RANK ind #17158

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 California →

Monolithic Power Systems, Inc. 401(k) Savings Plan in the asset neighbourhood

Monolithic Power Systems, Inc. 401(k) Savings PlanMonolithic Power Systems, In…$55MEmco Chemical Distributors, Inc. 401(k) Profit Sharing PlanEmco Chemical Distributors, …$55MGodbersen-Smith Construction Company 401(k) Profit Sharing PlanGodbersen-Smith Construction…$55MHudson River Trading LLC 401(k) PlanHudson River Trading LLC 401…$55MWls 401(k) Plan$55M
End-of-year total assets ($M) among Monolithic Power Systems, Inc. 401(k) Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

California filing particulars

Total Assets (Beginning of Year)$64M
Net Assets (End of Year)$55M
Net Income-$10M
Employer EIN770466789
Plan Effective Date1999-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Monolithic Power Systems, Inc.)

Sponsor-wide plan assets over time

All Monolithic Power Systems, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$91M 66.91565669574827% vs 2022
2024 filing year
$40M$60M$80M$100M 202220232024 $54.5M $91M ▲ +66.9%
Year Plans Participants Total Assets
2022 1 306 $55M
2023 1 350 $72M
2024 1 406 $91M

Nearby 401(k) Plans in California

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

Monolithic Power Systems, Inc. 401(k) Savings Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Monolithic Power Systems, Inc. 401(k) Savings Plan, Total assets ($B): 0.054518649 · Participants: 306Monolithic Power Systems, Inc. 401(k) Savings PlanWells Fargo & Company 401(k) Plan, Total assets ($B): 45.765616608 · Participants: 205865Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 28.89820221 · Participants: 102963Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 21.851716605 · Participants: 46320Oracle Corporation 401(k) Savings and Investment PlanChevron Employee Savings Investment Plan, Total assets ($B): 18.60989746 · Participants: 19946Chevron Employee Savings Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 18.361585903 · Participants: 54672Intel 401(k) Savings Plan
Monolithic Power Systems, Inc. 401(k) Savings Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Monolithic Power Systems, Inc. 401(k) Savings Plan side-by-side with 3 peers →

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

Outside California, the nearest 401(k) by assets is Emco Chemical Distributors, Inc. 401(k) Profit Sharing Plan in WI ($55M); by covered participants it is Anderson Dahlen, Inc. 401(k) & Profit Sharing Plan in MN (306 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (306 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Monolithic Power Systems, Inc. 401(k) Savings Plan assets move in 2022? ▼
Monolithic Power Systems, Inc. 401(k) Savings Plan declined sharply - down 15.3% during 2022, from $64M to $55M. Reported net income was -$10M.
How have Monolithic Power Systems, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Monolithic Power Systems, Inc.'s sponsor-wide assets grew 66.9%, from $55M to $91M.
Where does Monolithic Power Systems, Inc. 401(k) Savings Plan rank by assets among Form 5500 filers? ▼
Monolithic Power Systems, Inc. 401(k) Savings Plan ranks in the 89th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Monolithic Power Systems, Inc. 401(k) Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Emco Chemical Distributors, Inc. 401(k) Profit Sharing Plan in WI ($55M, 527 participants).
Which 401(k) plans cover a similar participant headcount to Monolithic Power Systems, Inc. 401(k) Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Anderson Dahlen, Inc. 401(k) & Profit Sharing Plan in MN (306 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 770466789.

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.