401(k) · DOL Form 5500 · 2022

Stillwater Mining Company 401(k) Plan

Data updated 2026-08-25

$256M
Total assets Near avg plan size
1,436
Participants Near avg headcount
96th
Percentile by assets National rank
$178,602
Avg per participant Above avg balance/head
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Official DOL plan name: Stillwater Mining Company Bargaining Unit 401(k) Plan · Sponsored by Stillwater Mining Company · Montana · Mining & Oil Extraction

$256M in assets, 1,436 participants

Stillwater Mining Company's Stillwater Mining Company Bargaining Unit 401(k) Plan reported $256M in total assets and 1,436 participants in its 2022 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.

  • #830 in Mining & Oil Extraction (892 peers)

Coverage in Montana

Stillwater Mining Company Bargaining Unit 401(k) Plan covers 1,436 participants in Montana, 5.3x the typical Montana plan (state average ~271 per filing). Assets: $256M.

#830
in Mining & Oil Extraction (892 peers)
-14.0%
assets change YoY
2.6×
vs typical plan assets (national mean)

The plan reported a net loss of $41M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Stillwater Mining Company Bargaining Unit 401(k) Plan's outsized position by total assets

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

End-of-year total assets · plan year 2022 · DOL Form 5500

$256,472,361 Top 4% higher than 96% of 139,123 filed plans

This plan $0 $2,050,000,000 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 2022

Stillwater Mining Company Bargaining Unit 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Stillwater Mining Company Bargaining Unit 401(k) Plan lands in the large band (1,436 participants).

Plan-year Form 5500 strip

Filing strip 810480654 · Stillwater Mining Company PY 2022 · 401(k)

Stillwater Mining Company Bargaining Unit 401(k) Plan · $256M · 1,436 · 96th

  • BOOK $256M
  • BOOK 1,436
  • BOOK 96th
  • BOOK 401(k)
  • BOOK near Valmet, Inc. Retirement Savings Plan
  • BOOK ind #830

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Mining & Oil Extraction retirement plans → · Plans in Montana →

Stillwater Mining Company Bargaining Unit 401(k) Plan in the asset neighbourhood

Proofpoint 401(k) Plan$257MValmet, Inc. Retirement Savings PlanValmet, Inc. Retirement Savi…$257MStillwater Mining Company Bargaining Unit 401(k) PlanStillwater Mining Company Ba…$256MEncova Insurance 401(k) Plan$256MRed Bull North America, Inc. Retirement Income PlanRed Bull North America, Inc.…$256M
End-of-year total assets ($M) among Stillwater Mining Company Bargaining Unit 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Montana filing particulars

Total Assets (Beginning of Year)$298M
Net Assets (End of Year)$256M
Net Income-$41M
Employer EIN810480654
Plan Effective Date1996-10-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Stillwater Mining Company)

Sponsor-wide plan assets over time

All Stillwater Mining Company plans reported in each filing year

Latest sponsor-wide plan assets
$431M 9.989406155149915% vs 2022
2024 filing year
$380M$400M$420M$440M$460M 202220232024 $392M $431M ▲ +10.0%
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 Scatter plot of 6 data points. 10002000300040005000 200250300350400450 Total assets ($M) Participants Stillwater Mining Company Bargaining Unit 401(k) Plan, Total assets ($M): 256.472361 · Participants: 1436Stillwater Mining Company Bargaining Unit 401(k) PlanFirst Interstate Bancsystem, Inc. 401(k) Plan, Total assets ($M): 425.784366 · Participants: 2313First Interstate Bancsystem, Inc. 401(k) PlanD.a. Davidson Companies Retirement Savings and Profit Sharing Plan, Total assets ($M): 421.705773 · Participants: 1507D.a. Davidson Companies Retirement Savings and Profit Sharing PlanGlacier Bancorp, Inc. Profit Sharing and 401(k) Plan, Total assets ($M): 412.377455 · Participants: 3272Glacier Bancorp, Inc. Profit Sharing and 401(k) PlanNorthwestern Energy 401(k) Retirement Savings Plan, Total assets ($M): 405.510912 · Participants: 1494Northwestern Energy 401(k) Retirement Savings PlanLogan Health Retirement Savings Plan, Total assets ($M): 358.733064 · Participants: 4055Logan Health Retirement Savings Plan
Stillwater Mining Company Bargaining Unit 401(k) Plan vs. nearby 401(k) plans in Montana, assets vs. participants
Compare Stillwater Mining Company Bargaining Unit 401(k) Plan side-by-side with 3 peers →

Stillwater Mining Company Bargaining Unit 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Montana, the nearest 401(k) by assets is Valmet, Inc. Retirement Savings Plan in GA ($257M); by covered participants it is Dek Industrial Services LLC Dba 360 Industrial Services 401(k) II Plan in AZ (1,436 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($256M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,436 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Stillwater Mining Company Bargaining Unit 401(k) Plan assets move in 2022? ▼
Stillwater Mining Company Bargaining Unit 401(k) Plan pulled back noticeably - down 14.0% during 2022, from $298M to $256M. Reported net income was -$41M.
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 139,126 plans that reported assets for plan year 2022 (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 Valmet, Inc. Retirement Savings Plan in GA ($257M, 1,845 participants).
Which 401(k) plans cover a similar participant headcount to Stillwater Mining Company Bargaining Unit 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Dek Industrial Services LLC Dba 360 Industrial Services 401(k) II Plan in AZ (1,436 participants, $18K in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

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.