401(k) · DOL Form 5500 · 2024

Mozilla Corporation 401(k) Plan

Data updated 2026-08-25

$217M
Total assets Near avg plan size
619
Participants Below avg headcount
95th
Percentile by assets National rank
$350,883
Avg per participant High balance/head
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Official DOL plan name: Mozilla Corporation 401(k) Plan · Sponsored by Mozilla Corporation · California · Professional & Technical Services

$217M in assets, 619 participants

Mozilla Corporation's Mozilla Corporation 401(k) Plan reported $217M in total assets and 619 participants in its 2024 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.

  • #19,318 in Professional & Technical Services (20,173 peers)

Where Mozilla Corporation 401(k) Plan sits by assets

Mozilla Corporation 401(k) Plan sits in the top 5% of all filed plans by assets, $217M for 619 participants (~$350,883/participant), up 19.3% in 2024.

#19,318
in Professional & Technical Services (20,173 peers)
+19.3%
assets growth YoY
2.2×
vs typical plan assets (national mean)

Mozilla Corporation 401(k) Plan's outsized position by total assets

Mozilla Corporation 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$217,196,377 Top 5% higher than 95% of 123,620 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 2024

Mozilla Corporation 401(k) Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mozilla Corporation 401(k) Plan sits mid-pack in the medium band (619 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Mozilla Corporation 401(k) Plan end-of-year assets rose from $182M in the plan year 2023 filing to $217M in the plan year 2024 filing.
  • Mozilla Corporation 401(k) Plan reported net income fell from $42M in the plan year 2023 filing to $35M in the plan year 2024 filing.
  • Mozilla Corporation 401(k) Plan reported participants rose from 569 in the plan year 2023 filing to 619 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 203226186 · Mozilla Corporation PY 2024 · 401(k)

Mozilla Corporation 401(k) Plan · $217M · 619 · 95th

  • NET $217M
  • NET 619
  • NET 95th
  • NET 401(k)
  • NET near Forefront Dermatology 401(k) Plan
  • NET ind #19318

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 Professional & Technical Services retirement plans → · Plans in California →

Mozilla Corporation 401(k) Plan in the asset neighbourhood

Ferrara Candy Company 401(k) PlanFerrara Candy Company 401(k)…$217MGreat Lakes Dredge & Dock Company, LLC 401(k) Savings PlanGreat Lakes Dredge & Dock Co…$217MRehmann LLC 401(k) Plan$217MMozilla Corporation 401(k) PlanMozilla Corporation 401(k) P…$217MForefront Dermatology 401(k) PlanForefront Dermatology 401(k)…$217M
End-of-year total assets ($M) among Mozilla Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$182M
Net Assets (End of Year)$217M
Net Income$35M
Employer EIN203226186
Plan Effective Date2005-10-15
Filing StatusFILING RECEIVED

Sponsor Plan History (Mozilla Corporation)

Sponsor-wide plan assets over time

All Mozilla Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$217M 55.16658110453873% vs 2022
2024 filing year
$100M$150M$200M$250M 202220232024 $140M $217M ▲ +55.2%
Year Plans Participants Total Assets
2022 1 455 $140M
2023 1 569 $182M
2024 1 619 $217M

Nearby 401(k) Plans in California

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

Mozilla Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -200204060 Total assets ($B) Participants Mozilla Corporation 401(k) Plan, Total assets ($B): 0.217196377 · Participants: 619Mozilla Corporation 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 48.738057415 · Participants: 116712Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 31.02646504 · Participants: 58962Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 24.850880304 · Participants: 55298Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 24.714519387 · Participants: 101450Apple 401(k) PlanCisco Systems,Inc. 401(k) Plan, Total assets ($B): 22.728425546 · Participants: 40452Cisco Systems,Inc. 401(k) Plan
Mozilla Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants

Mozilla Corporation 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Forefront Dermatology 401(k) Plan in WI ($217M); by covered participants it is Intellia Tx, Inc. 401(k) Plan in MA (619 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($217M here).

Similar participant headcount

Nearest other-state filings by covered participants (619 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Mozilla Corporation 401(k) Plan assets move in 2024? ▼
Mozilla Corporation 401(k) Plan grew sharply - up 19.3% during 2024, from $182M to $217M. Reported net income was $35M.
How have Mozilla Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mozilla Corporation's sponsor-wide assets grew 55.2%, from $140M to $217M.
Where does Mozilla Corporation 401(k) Plan rank by assets among Form 5500 filers? ▼
Mozilla Corporation 401(k) Plan ranks in the 95th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Mozilla Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Forefront Dermatology 401(k) Plan in WI ($217M, 3,117 participants).
Which 401(k) plans cover a similar participant headcount to Mozilla Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Intellia Tx, Inc. 401(k) Plan in MA (619 participants, $67M in assets).