401(k) · DOL Form 5500 · 2024

Komatsu Mining Corp. 401(k) Plan

Data updated 2026-07-24

$923M
Total assets: 3,840
Participants: 98th
Percentile by assets: $240,462
Avg per participant

Official DOL plan name: Komatsu Mining Corp. Retirement Savings Plan · Sponsored by Komatsu Mining Corp. · Wisconsin · Manufacturing

$923M in assets, 3,840 participants

Komatsu Mining Corp.'s Komatsu Mining Corp. Retirement Savings Plan reported $923M in total assets and 3,840 participants in its 2024 DOL Form 5500 filing, ranking in the 98th 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.

98th percentile by assets (of 116,472 plans)

Coverage in Wisconsin

Komatsu Mining Corp. Retirement Savings Plan covers 3,840 participants in Wisconsin, 6.8x the typical Wisconsin plan (state average ~565 per filing). Assets: $923M.

$923M
total plan assets (2024 EOY): 3,840
covered participants: 98th
percentile by assets (of 116,472 plans): $240,462
avg assets per participant

Komatsu Mining Corp. Retirement Savings Plan reported net income fell from $114M in the plan year 2023 filing to $95M in the plan year 2024 filing.
Komatsu Mining Corp. Retirement Savings Plan end-of-year assets rose from $828M in the plan year 2023 filing to $923M in the plan year 2024 filing.
Komatsu Mining Corp. Retirement Savings Plan reported participants rose from 3,738 in the plan year 2023 filing to 3,840 in the plan year 2024 filing.

See the national 2023→2024 release diff →

State

Wisconsin

Industry

Manufacturing

Participants vs Wisconsin filers

In Wisconsin, the average filing covers about 565 participants across 2,767 plans. Komatsu Mining Corp. Retirement Savings Plan reports 3,840 participants - 6.8x that state average ($923M EOY assets).

Wisconsin filing particulars

Total Assets (Beginning of Year)	$828M
Net Assets (End of Year)	$923M
Net Income	$95M
Employer EIN	391566457
Plan Effective Date	1984-04-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Komatsu Mining Corp.)

Total plan assets by year, all Komatsu Mining Corp. plans on file

Year	Plans	Participants	Total Assets
2022	2	4,653	$1.5B
2023	2	4,744	$1.6B
2024	1	3,840	$923M

Nearby 401(k) Plans in Wisconsin

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

Komatsu Mining Corp. Retirement Savings Plan vs. nearby 401(k) plans in Wisconsin, assets vs. participants

Advocate Aurora Health 401(k) Plan $10.5B · 80,015
Johnson Controls Retirement Savings and Investment Plan $7.2B · 28,489
Fiserv 401(k) Savings Plan $5.1B · 26,372
Kimberly-Clark Corporation 401(k) & Profit Sharing Plan $5.0B · 11,661
Rockwell Automation Retirement Savings Plan $3.8B · 9,217

Compare Komatsu Mining Corp. Retirement Savings … side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Komatsu Mining Corp. Retirement Savings Plan by total assets, not by location.

Marathon Oil Company Thrift Plan (TX) $923M · 1,279
Blackstone 401(k) Savings Plan (NY) $923M · 3,481
Arvest Bank 401(k) & Profit Sharing Retirement Plan (AR) $926M · 6,430
Seyfarth Shaw LLP 401(k) Savings and Retirement Plan (IL) $926M · 1,915

Frequently Asked Questions

How did Komatsu Mining Corp. Retirement Savings Plan assets move in 2024? ▼

Komatsu Mining Corp. Retirement Savings Plan grew at a solid clip - up 11.5% during 2024, from $828M to $923M. Reported net income was $95M.

How have Komatsu Mining Corp. plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Komatsu Mining Corp.'s sponsor-wide assets declined 37.2%, from $1.5B to $923M.

Where does Komatsu Mining Corp. Retirement Savings Plan rank by assets among Form 5500 filers? ▼

Komatsu Mining Corp. Retirement Savings Plan ranks in the 98th percentile by end-of-year assets among 116,472 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).

Which 401(k) plans are similar in size to Komatsu Mining Corp. Retirement Savings Plan? ▼

Among 401(k) plans in other states, the closest by assets is Marathon Oil Company Thrift Plan in TX ($923M, 1,279 participants).

Next read for Komatsu Mining Corp. Retirement Savings …

Filing takeaways

Ways to act on Komatsu Mining Corp. Retirement Savings Plan's numbers.

By total assets, Komatsu Mining Corp. Retirement Savings Plan ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in Wisconsin. Compare plans
Komatsu Mining Corp.'s sponsor-wide assets have declined 37.2% since 2022 across 3 plan years on file. More Manufacturing plans

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 391566457.

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.