Plexus Corp. 401(k) Review & Grade
Plexus Corp. 401(k) Retirement Plan
Neenah, WIManagement of Companies2,974 active participantsPlan year 2024✓ Auto-enroll
Estimate from the plan's Form 5500 filing · How we grade
$3,329Employer $ per active participant
$7,949Employee $ saved per active participant
0.08%Direct admin cost, % of plan assets
$606.1MNet plan assets, end of year
$145,067Average balance per account
Score breakdown
- Employer generosity23.7 / 5047th percentile for employer $ per participant
- Low cost16.1 / 2564th percentile for low admin cost vs. same-size plans
- Employee saving10.4 / 1569th percentile for employee $ per participant
- Plan features10 / 10Auto-enrollment, Default investment
Total score60 / 100 · Grade B
This plan vs. peers
Peers: Management of Companies plans with 2,500–9,999 active participants (60 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 47th |
| Lower admin cost | 64th |
| Employee saving | 69th |
| Peers that auto-enroll | 58% |
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Red flags from the filing
No red flags were reported on this filing's compliance questions.
What to do if you're in this plan
- Plexus put in about $3,329 per active participant, below the typical peer ($3,455). Any match is still an instant return, so contribute enough to get all of it.
- 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.
- The plan auto-enrolls employees. Check your default contribution rate. Defaults are often lower than what it takes to get the full match.
- 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 | $9,898,302 |
| Participant (employee) contributions | $23,637,500 |
| Other contributions (incl. rollovers in) | $3,950,592 |
| Administrative expenses paid from the plan | $460,329 |
| Investment advisory & management fees | $194,551 |
| Other admin expenses | $1,465 |
| Benefits paid out | $55,946,469 |
| Net assets, start / end of year | $542.6M / $606.1M |
| Active participants, start / end of year | 3,233 / 2,714 |
| Participants with account balances | 4,178 |
| Auto-enrollment (feature code 2S) | Yes |
| Auditor | Wipfli LLP |
| Employer stock held by plan | $22,839,172 |
Largest service providers (Schedule C)
| T Rowe Price RPS Inc | $223,501 reported compensation |
| Francis Investment Counsel LLC | $116,299 reported compensation |
| Francis Investment Counsel LLC | $78,252 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20250715081435NAL0001162355001, received 2025-07-15, EIN 39-1344447, plan #001, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.