Stillwater Mining Company 401(k) Review & Grade
Stillwater Mining Company Bargaining Unit 401(k) Plan
Columbus, MTMining, Oil & Gas1,038 active participantsPlan year 2024✓ Auto-enroll
Estimate from the plan's Form 5500 filing · How we grade
$7,488Employer $ per active participant
$9,686Employee $ saved per active participant
0.15%Direct admin cost, % of plan assets
$276.3MNet plan assets, end of year
$211,563Average balance per account
Score breakdown
- Employer generosity37.5 / 5075th percentile for employer $ per participant
- Low cost16.0 / 2564th percentile for low admin cost vs. same-size plans
- Employee saving11.7 / 1578th percentile for employee $ per participant
- Plan features10 / 10Auto-enrollment, Default investment
Total score75 / 100 · Grade A
This plan vs. peers
Peers: Mining, Oil & Gas plans with 500–2,499 active participants (129 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 75th |
| Lower admin cost | 64th |
| Employee saving | 78th |
| Peers that auto-enroll | 60% |
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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
- Stillwater Mining put in about $7,488 per active participant, more than the typical peer ($4,357). 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.
- 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 | $7,772,613 |
| Participant (employee) contributions | $10,054,313 |
| Other contributions (incl. rollovers in) | $289,259 |
| Administrative expenses paid from the plan | $406,937 |
| Investment advisory & management fees | $92,276 |
| Other admin expenses | $187,106 |
| Benefits paid out | $52,120,054 |
| Net assets, start / end of year | $279.9M / $276.3M |
| Active participants, start / end of year | 1,317 / 759 |
| Participants with account balances | 1,306 |
| Auto-enrollment (feature code 2S) | Yes |
| Auditor | Cliftonlarsonallen LLP |
Largest service providers (Schedule C)
| Empower Annuity Insurance Company O | $110,230 reported compensation |
| NFP Retirement Inc | $70,000 reported compensation |
| Advised Assets Group, LLC | $22,276 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20251015124409NAL0002427619001, received 2025-10-15, EIN 81-0480654, plan #002, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.