401(k) · DOL Form 5500 · 2023

Stillwater Mining Company 401(k) Plan

Data updated 2026-08-11

$280M
Total assets
1,324
Participants
96th
Percentile by assets
$211,415
Avg per participant
PlainRetire home → About this data

Official DOL plan name: Stillwater Mining Company Bargaining Unit 401(k) Plan · Sponsored by Stillwater Mining Company · Montana · Mining & Oil Extraction

$280M in assets, 1,324 participants

Stillwater Mining Company's Stillwater Mining Company Bargaining Unit 401(k) Plan reported $280M in total assets and 1,324 participants in its 2023 DOL Form 5500 filing, ranking in the 96th 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.

  • 96th percentile by assets (of 127,072 plans)
  • #748 in Mining & Oil Extraction (811 peers)

Coverage in Montana

Stillwater Mining Company Bargaining Unit 401(k) Plan covers 1,324 participants in Montana, 4.9x the typical Montana plan (state average ~271 per filing). Assets: $280M.

$280M
total plan assets (2023 EOY)
1,324
covered participants
96th
percentile by assets (of 127,072 plans)
$211,415
avg assets per participant

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

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

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

$279,914,083 Top 4% higher than 96% 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 Bargaining Unit 401(k) Plan reported net income rose from -$41M in the plan year 2022 filing to $29M in the plan year 2023 filing.
  • Stillwater Mining Company Bargaining Unit 401(k) Plan end-of-year assets rose from $256M in the plan year 2022 filing to $280M in the plan year 2023 filing.
  • Stillwater Mining Company Bargaining Unit 401(k) Plan reported participants fell from 1,436 in the plan year 2022 filing to 1,324 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State
Montana
Industry
Mining & Oil Extraction

Participants vs Montana filers

In Montana, the average filing covers about 271 participants across 404 plans. Stillwater Mining Company Bargaining Unit 401(k) Plan reports 1,324 participants - 4.9x that state average ($280M EOY assets).

Montana filing particulars

Total Assets (Beginning of Year)$256M
Net Assets (End of Year)$280M
Net Income$29M
Employer EIN810480654
Plan Effective Date1996-10-01
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 Bargaining Unit 401(k) Plan vs. nearby 401(k) plans in Montana, assets vs. participants

Stillwater Mining Company Bargaining Unit 401(k) Plan vs. nearby 401(k) plans in Montana, assets vs. participants Scatter plot of 6 data points. 10002000300040005000 200300400500600 Total assets ($M) Participants Stillwater Mining Co…D.a. Davidson Compan…Glacier Bancorp, Inc…Northwestern Energy …First Interstate Ban…Logan Health Retirem…
Stillwater Mining Company Bargaining Unit 401(k) Plan vs. nearby 401(k) plans in Montana, assets vs. participants
Compare Stillwater Mining Company Bargaining Uni… side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

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

Frequently Asked Questions

How did Stillwater Mining Company Bargaining Unit 401(k) Plan assets move in 2023? ▼
Stillwater Mining Company Bargaining Unit 401(k) Plan grew at a solid clip - up 9.1% during 2023, from $256M to $280M. Reported net income was $29M.
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 Bargaining Unit 401(k) Plan rank by assets among Form 5500 filers? ▼
Stillwater Mining Company Bargaining Unit 401(k) Plan ranks in the 96th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Stillwater Mining Company Bargaining Unit 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Suffolk Construction Company, Inc. 401(k) Retirement Plan in MA ($280M, 1,826 participants).

Next read for Stillwater Mining Company Bargaining Uni…

Filing takeaways

Ways to act on Stillwater Mining Company Bargaining Unit 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.