Mozilla Corporation 401(k) Review & Grade
Mozilla Corporation 401(k) Plan
San Francisco, CAProfessional, Scientific & Technical Services622 active participantsPlan year 2024
Estimate from the plan's Form 5500 filing · How we grade
$13,153Employer $ per active participant
$18,206Employee $ saved per active participant
0.05%Direct admin cost, % of plan assets
$217.2MNet plan assets, end of year
$185,638Average balance per account
Score breakdown
- Employer generosity47.7 / 5095th percentile for employer $ per participant
- Low cost21.5 / 2586th percentile for low admin cost vs. same-size plans
- Employee saving14.5 / 1597th percentile for employee $ per participant
- Plan features3 / 10Default investment
- Red-flag deductions-3 pts1 issue reported on the filing
Total score84 / 100 · Grade A
This plan vs. peers
Peers: Professional, Scientific & Technical Services plans with 500–2,499 active participants (1,469 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 95th |
| Lower admin cost | 86th |
| Employee saving | 97th |
| Peers that auto-enroll | 48% |
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Red flags from the filing
Corrective distributions: the plan refunded $36,448 in contributions, which usually means it failed annual nondiscrimination testing.
What to do if you're in this plan
- Mozilla put in about $13,153 per active participant, more than the typical peer ($3,082). Contribute at least enough to collect the full match. Skipping it leaves part of your pay on the table.
- The filing shows total dollars, not the match formula. Ask HR for the Summary Plan Description so you know the exact match and vesting schedule.
- Fund expense ratios aren't in the filing. Look them up in your 404(a)(5) fee disclosure and favor low-cost index or target-date funds.
- Changing jobs? You can usually leave the money in the plan, move it to your new employer's plan, or roll it into an IRA. Don't cash out: you'd owe taxes and possibly a 10% penalty.
The raw numbers from the filing
| Employer contributions | $8,174,862 |
| Participant (employee) contributions | $11,315,182 |
| Other contributions (incl. rollovers in) | $5,181,242 |
| Administrative expenses paid from the plan | $107,747 |
| Contract administrator fees | $1,500 |
| Investment advisory & management fees | $47,222 |
| Benefits paid out | $18,566,876 |
| Net assets, start / end of year | $182.0M / $217.2M |
| Active participants, start / end of year | 619 / 624 |
| Participants with account balances | 1,170 |
| Auto-enrollment (feature code 2S) | Not reported |
| Auditor | Hood & Strong |
Largest service providers (Schedule C)
| Fidelity Investments Institutional | $61,726 reported compensation |
| Strategic Advisors, Inc. | $47,222 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20251015120252NAL0002370579001, received 2025-10-15, EIN 20-3226186, plan #001, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.