Stillwater Mining Company 401(k) Plan: Login, Facts & Contact Information

Stillwater Mining Company 401(k) Plan Facts

Plan name
STILLWATER MINING COMPANY BARGAINING UNIT 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
STILLWATER MINING COMPANY
Participants
1,626 (759 active employees)
Former employees with a balance
477
Plan assets
$276,301,384 at Dec 31, 2024
Average account balance
$211,563 across 1,306 accounts
Employer contributions
$7,772,613 in plan year 2024 (43% of all contributions)
Recordkeeper
Empower Annuity Insurance Company O
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Oct 1, 1996
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Oct 15, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $18.1 million went into the plan in contributions, $7.77 million of it from the employer (43%).
  • $52.1 million was paid out to participants.
  • Investment and other income added $33.4 million.
  • Administrative expenses were $406,937, about $312 per account.

How the Stillwater Mining Company 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20191,360$239.8 million$7.60 million$12.4 million
20201,505$271.2 million$8.32 million$15.9 million
20211,557$298.4 million$8.33 million$21.6 million
20221,647$256.5 million$8.17 million$20.8 million
20231,578$279.9 million$8.24 million$28.5 million
20241,626$276.3 million$7.77 million$52.1 million

Stillwater Mining Company 401(k) Contact Information

Phone
406-373-8700
Mailing address
1600 E 1ST AVE S, COLUMBUS MT 59019
Plan sponsor
STILLWATER MINING COMPANY
Employer identification number (EIN)
81-0480654
Plan number
002

Questions about the Stillwater Mining Company 401(k)

Does Stillwater Mining Company contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $7.77 million, 43% of all contributions.

Does the Stillwater Mining Company 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Stillwater Mining Company 401(k) plan?

1,626 participants at the start of plan year 2024, 759 of them active employees, and 477 former employees who still had money in the plan.

What is the average 401(k) balance at Stillwater Mining Company?

About $211,563 per account: $276.3 million in plan assets across 1,306 accounts with a balance at the end of plan year 2024.

Who manages the Stillwater Mining Company 401(k) accounts?

Empower (listed on the filing as EMPOWER ANNUITY INSURANCE COMPANY O) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Stillwater Mining Company. How do I access my 401(k)?

Your account stays with Empower after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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