Alpha & Omega Semiconductor, Inc. 401(k) Review & Grade
Alpha & Omega Semiconductor, Inc. 401(k) Plan
Sunnyvale, CAManufacturing755 active participantsPlan year 2024
Estimate from the plan's Form 5500 filing · How we grade
$2,486Employer $ per active participant
$13,941Employee $ saved per active participant
0.16%Direct admin cost, % of plan assets
$105.3MNet plan assets, end of year
$115,985Average balance per account
Score breakdown
- Employer generosity26.9 / 5054th percentile for employer $ per participant
- Low cost15.3 / 2561th 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 score57 / 100 · Grade C
This plan vs. peers
Peers: Manufacturing plans with 500–2,499 active participants (2,376 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 54th |
| Lower admin cost | 61th |
| Employee saving | 97th |
| Peers that auto-enroll | 59% |
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Red flags from the filing
Corrective distributions: the plan refunded $1,677 in contributions, which usually means it failed annual nondiscrimination testing.
What to do if you're in this plan
- Alpha & Omega Semiconductor put in about $2,486 per active participant, more than the typical peer ($2,320). 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 | $1,877,171 |
| Participant (employee) contributions | $10,525,305 |
| Other contributions (incl. rollovers in) | $1,586,995 |
| Administrative expenses paid from the plan | $151,652 |
| Investment advisory & management fees | $74,447 |
| Benefits paid out | $5,290,121 |
| Net assets, start / end of year | $83.0M / $105.3M |
| Active participants, start / end of year | 769 / 741 |
| Participants with account balances | 908 |
| Auto-enrollment (feature code 2S) | Not reported |
| Auditor | Sensiba LLP |
Largest service providers (Schedule C)
| Jensen Financial Services Inc | $74,447 reported compensation |
| Fidelity Investments Institutional | $62,205 reported compensation |
| Sensiba | $15,000 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20250725145834NAL0003259315001, received 2025-07-25, EIN 77-0553536, plan #001, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.