Amphenol Corporation & Affiliated Companies 401(k) Review & Grade
Amphenol Corporation Employee Savings/401(k) Plan
Wallingford, CTManufacturing6,162 active participantsPlan year 2024
Estimate from the plan's Form 5500 filing · How we grade
$4,009Employer $ per active participant
$5,838Employee $ saved per active participant
0.07%Direct admin cost, % of plan assets
$779.2MNet plan assets, end of year
$116,391Average balance per account
Score breakdown
- Employer generosity29.6 / 5059th percentile for employer $ per participant
- Low cost16.8 / 2567th percentile for low admin cost vs. same-size plans
- Employee saving7.1 / 1547th percentile for employee $ per participant
- Plan features0 / 10No auto-enrollment or default investment reported
Total score54 / 100 · Grade C
This plan vs. peers
Peers: Manufacturing plans with 2,500–9,999 active participants (566 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 59th |
| Lower admin cost | 67th |
| Employee saving | 47th |
| Peers that auto-enroll | 70% |
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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
- Amphenol Corporation & Affiliated Companies put in about $4,009 per active participant, more than the typical peer ($3,452). 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 | $24,698,766 |
| Participant (employee) contributions | $35,972,662 |
| Other contributions (incl. rollovers in) | $11,957,523 |
| Administrative expenses paid from the plan | $526,517 |
| Other admin expenses | $526,517 |
| Benefits paid out | $70,889,448 |
| Net assets, start / end of year | $668.7M / $779.2M |
| Active participants, start / end of year | 5,339 / 6,984 |
| Participants with account balances | 6,695 |
| Auto-enrollment (feature code 2S) | Not reported |
| Auditor | Cliftonlarsonallen LLP |
Largest service providers (Schedule C)
| Strategic Advisors, Inc. | $172,866 reported compensation |
| Cliftonlarsonallen LLP | $32,350 reported compensation |
| Fidelity Invst. Inst. Oper. Co. LLC | −$542,908 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20251002092215NAL0000236321001, received 2025-10-02, EIN 22-2785165, plan #010, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.