401(k) · DOL Form 5500 · 2024

Granite Rock Company 401(k) Plan

Data updated 2026-08-11

$133M
Total assets
383
Participants
92nd
Percentile by assets
$346,562
Avg per participant
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Official DOL plan name: Graniterock 401(k) Plan · Sponsored by Granite Rock Company · California · Construction

$133M in assets, 383 participants

Granite Rock Company's Graniterock 401(k) Plan reported $133M in total assets and 383 participants in its 2024 DOL Form 5500 filing, ranking in the 92nd 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.

  • 92nd percentile by assets (of 123,622 plans)
  • #8,215 in Construction (9,039 peers)

Where Graniterock 401(k) Plan sits by assets

Graniterock 401(k) Plan sits in the top 10% of all filed plans by assets, $133M for 383 participants (~$346,562/participant), up 16.0% in 2024.

$133M
total plan assets (2024 EOY)
383
covered participants
92nd
percentile by assets (of 123,622 plans)
$346,562
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Graniterock 401(k) Plan reported net income rose from $14M in the plan year 2023 filing to $18M in the plan year 2024 filing.
  • Graniterock 401(k) Plan end-of-year assets rose from $114M in the plan year 2023 filing to $133M in the plan year 2024 filing.
  • Graniterock 401(k) Plan reported participants fell from 391 in the plan year 2023 filing to 383 in the plan year 2024 filing.

See the national 2023→2024 release diff →

State
Industry

Graniterock 401(k) Plan vs the 2024 asset distribution

By assets, Graniterock 401(k) Plan outranks 92% of the 123,622 plans that filed a Form 5500 for the 2024 plan year, and holds roughly 1.3x the national average plan size of $100M (721 average participants).

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$114M
Net Assets (End of Year)$133M
Net Income$18M
Employer EIN940519560
Plan Effective Date1955-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Granite Rock Company)

$90M$100M$110M$120M$130M$140M 202220232024 $100M $133M ▲ +32.2%
Total plan assets by year, all Granite Rock Company plans on file
Year Plans Participants Total Assets
2022 1 390 $100M
2023 1 391 $114M
2024 1 383 $133M

Nearby 401(k) Plans in California

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

Graniterock 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants

Graniterock 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -200204060 Total assets ($B) Participants Graniterock 401(k) P…Google LLC 401(k) Sa…Oracle Corporation 4…Intel 401(k) Savings…Apple 401(k) PlanCisco Systems,Inc. 4…
Graniterock 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants

Similar-Sized 401(k) Plans Nationally

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

Frequently Asked Questions

How did Graniterock 401(k) Plan assets move in 2024?
Graniterock 401(k) Plan grew sharply - up 16.0% during 2024, from $114M to $133M. Reported net income was $18M.
How have Granite Rock Company plan assets changed over time?
Across 3 plan years on file (2022-2024), Granite Rock Company's sponsor-wide assets grew 32.2%, from $100M to $133M.
Where does Graniterock 401(k) Plan rank by assets among Form 5500 filers?
Graniterock 401(k) Plan ranks in the 92nd percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Graniterock 401(k) Plan?
Among 401(k) plans in other states, the closest by assets is Zausner Foods Corp. and Participating Employers Savings Plus Plan in PA ($133M, 902 participants).

Scale reading

Ways to act on Graniterock 401(k) Plan's numbers.