Argenx US Inc. 401(k) Review & Grade
Argenx US Inc. 401(k) Profit Sharing Plan
Boston, MAProfessional, Scientific & Technical Services582 active participantsPlan year 2024
Estimate from the plan's Form 5500 filing · How we grade
$9,944Employer $ per active participant
$21,466Employee $ saved per active participant
0.05%Direct admin cost, % of plan assets
$67.2MNet plan assets, end of year
$95,667Average balance per account
Score breakdown
- Employer generosity45.4 / 5091th percentile for employer $ per participant
- Low cost21.9 / 2588th percentile for low admin cost vs. same-size plans
- Employee saving14.9 / 1599th percentile for employee $ per participant
- Plan features3 / 10Default investment
- Red-flag deductions-8 pts2 issues reported on the filing
Total score77 / 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 | 91th |
| Lower admin cost | 88th |
| Employee saving | 99th |
| Peers that auto-enroll | 48% |
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Red flags from the filing
No fidelity bond: the plan reported it was not covered by a fidelity bond, which protects participants against theft.
Corrective distributions: the plan refunded $62,946 in contributions, which usually means it failed annual nondiscrimination testing.
What to do if you're in this plan
- Argenx US put in about $9,944 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 | $5,787,281 |
| Participant (employee) contributions | $12,493,481 |
| Other contributions (incl. rollovers in) | $10,433,566 |
| Administrative expenses paid from the plan | $25,286 |
| Investment advisory & management fees | $22,455 |
| Benefits paid out | $4,518,896 |
| Net assets, start / end of year | $36.7M / $67.2M |
| Active participants, start / end of year | 459 / 705 |
| Participants with account balances | 702 |
| Auto-enrollment (feature code 2S) | Not reported |
| Auditor | Aafcpas, Inc. |
Largest service providers (Schedule C)
| Strategic Advisors, Inc. | $22,455 reported compensation |
| Fidelity Investments Institutional | $2,831 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20251014195131NAL0004883536001, received 2025-10-14, EIN 36-4880497, plan #001, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.