401(k) · DOL Form 5500 · 2023

Stillwater Mining Company 401(k) Plan

Data updated 2026-08-11

$156M
Total assets
502
Participants
94th
Percentile by assets
$310,670
Avg per participant
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Official DOL plan name: Stillwater Mining Company 401(k) Plan · Sponsored by Stillwater Mining Company · Montana · Mining & Oil Extraction

$156M in assets, 502 participants

Stillwater Mining Company's Stillwater Mining Company 401(k) Plan reported $156M in total assets and 502 participants in its 2023 DOL Form 5500 filing, ranking in the 94th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • 94th percentile by assets (of 127,072 plans)
  • #710 in Mining & Oil Extraction (811 peers)

Where Stillwater Mining Company 401(k) Plan sits by assets

Stillwater Mining Company 401(k) Plan sits in the top 10% of all filed plans by assets, $156M for 502 participants (~$310,670/participant), up 15.4% in 2023.

$156M
total plan assets (2023 EOY)
502
covered participants
94th
percentile by assets (of 127,072 plans)
$310,670
avg assets per participant

Where Stillwater Mining Company 401(k) Plan sits by total assets

Stillwater Mining Company 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$155,956,138 Top 6% higher than 94% of 127,068 filed plans

This plan $0 $2,010,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Stillwater Mining Company 401(k) Plan reported net income rose from -$23M in the plan year 2022 filing to $16M in the plan year 2023 filing.
  • Stillwater Mining Company 401(k) Plan end-of-year assets rose from $135M in the plan year 2022 filing to $156M in the plan year 2023 filing.
  • Stillwater Mining Company 401(k) Plan reported participants fell from 539 in the plan year 2022 filing to 502 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State
Montana
Industry
Mining & Oil Extraction

Stillwater Mining Company 401(k) Plan vs the 2023 asset distribution

By assets, Stillwater Mining Company 401(k) Plan outranks 94% of the 127,072 plans that filed a Form 5500 for the 2023 plan year, and holds roughly 1.6x the national average plan size of $100M (721 average participants).

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$135M
Net Assets (End of Year)$156M
Net Income$16M
Employer EIN810480654
Plan Effective Date1993-06-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Stillwater Mining Company)

$380M$400M$420M$440M$460M 202220232024 $392M $431M ▲ +10.0%
Total plan assets by year, all Stillwater Mining Company plans on file
Year Plans Participants Total Assets
2022 2 1,975 $392M
2023 2 1,826 $436M
2024 2 1,810 $431M

Nearby 401(k) Plans in Montana

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Stillwater Mining Company 401(k) Plan vs. nearby 401(k) plans in Montana, assets vs. participants Scatter plot of 6 data points. 010002000300040005000 100200300400500600 Total assets ($M) Participants Stillwater Mining Co…, Total assets ($M): 155.956138 · Participants: 502Stillwater Mining Co…D.a. Davidson Compan…, Total assets ($M): 543.142005 · Participants: 1580D.a. Davidson Compan…Glacier Bancorp, Inc…, Total assets ($M): 484.798151 · Participants: 3264Glacier Bancorp, Inc…Northwestern Energy …, Total assets ($M): 462.756735 · Participants: 1529Northwestern Energy …First Interstate Ban…, Total assets ($M): 453.618257 · Participants: 3750First Interstate Ban…Logan Health Retirem…, Total assets ($M): 436.597451 · Participants: 4232Logan Health Retirem…
Stillwater Mining Company 401(k) Plan vs. nearby 401(k) plans in Montana, assets vs. participants
Compare Stillwater Mining Company 401(k) Plan side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Stillwater Mining Company 401(k) Plan by total assets, not by location.

Frequently Asked Questions

How did Stillwater Mining Company 401(k) Plan assets move in 2023? ▼
Stillwater Mining Company 401(k) Plan grew sharply - up 15.4% during 2023, from $135M to $156M. Reported net income was $16M.
How have Stillwater Mining Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Stillwater Mining Company's sponsor-wide assets grew 10.0%, from $392M to $431M.
Where does Stillwater Mining Company 401(k) Plan rank by assets among Form 5500 filers? ▼
Stillwater Mining Company 401(k) Plan ranks in the 94th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Stillwater Mining Company 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Confluent Health, LLC 401(k) Profit Sharing Plan in KY ($156M, 8,987 participants).

Next read for Stillwater Mining Company 401(k) Plan

Scale reading

Ways to act on Stillwater Mining Company 401(k) Plan's numbers.

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 810480654.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.