401(k) · DOL Form 5500 · 2023

Knife River Corporation 401(k) Plan

Data updated 2026-08-25

$741M
Total assets Above avg plan size
5,269
Participants Above avg headcount
98th
Percentile by assets National rank
$140,679
Avg per participant Near avg balance/head
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Official DOL plan name: Knife River Corporation 401(k) Retirement Plan · Sponsored by Knife River Corporation · North Dakota · Construction

$741M in assets, 5,269 participants

Knife River Corporation's Knife River Corporation 401(k) Retirement Plan reported $741M in total assets and 5,269 participants in its 2023 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.

  • #8,871 in Construction (9,030 peers)

Coverage in North Dakota

Knife River Corporation 401(k) Retirement Plan covers 5,269 participants in North Dakota, 10x the typical North Dakota plan (state average ~504 per filing). Assets: $741M.

#8,871
in Construction (9,030 peers)
$103M
reported net income
7.4×
vs typical plan assets (national mean)

Knife River Corporation 401(k) Retirement Plan's outsized position by total assets

Knife River Corporation 401(k) Retirement Plan vs every filed plan by assets

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

$741,236,100 Top 2% higher than 98% of 127,068 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 2023

Knife River Corporation 401(k) Retirement Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Knife River Corporation 401(k) Retirement Plan lands in the large band (5,269 participants).

DOL schedule card

Filing strip 921008893 · Knife River Corporation PY 2023 · 401(k)

Knife River Corporation 401(k) Retirement Plan · $741M · 5,269 · 98th

  • BOOK $741M
  • BOOK 5,269
  • BOOK 98th
  • BOOK 401(k)
  • BOOK near Aultman 401(k) Plan
  • BOOK ind #8871

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 Construction retirement plans → · Plans in North Dakota →

Knife River Corporation 401(k) Retirement Plan in the asset neighbourhood

Fox Rothschild LLP Retirement Savings PlanFox Rothschild LLP Retiremen…$742MAcosta, Inc. 401(k) Retirement PlanAcosta, Inc. 401(k) Retireme…$742MAmeritas 401(k) Retirement PlanAmeritas 401(k) Retirement P…$742MAultman 401(k) Plan$741MKnife River Corporation 401(k) Retirement PlanKnife River Corporation 401(…$741M
End-of-year total assets ($M) among Knife River Corporation 401(k) Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

North Dakota filing particulars

Total Assets (Beginning of Year)N/A
Net Assets (End of Year)$741M
Net Income$103M
Employer EIN921008893
Plan Effective Date1984-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Knife River Corporation)

Sponsor-wide plan assets over time

All Knife River Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$881M 14.777336053264388% vs 2023
2024 filing year
$750M$800M$850M$900M 20232024 $768M $881M ▲ +14.8%
Year Plans Participants Total Assets
2023 2 5,300 $768M
2024 2 5,351 $881M

Nearby 401(k) Plans in North Dakota

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

Knife River Corporation 401(k) Retirement Plan vs. nearby 401(k) plans in North Dakota, assets vs. participants Scatter plot of 6 data points. 010000200003000040000 01234 Total assets ($B) Participants Knife River Corporation 401(k) Retirement Plan, Total assets ($B): 0.7412361 · Participants: 5269Knife River Corporation 401(k) Retirement PlanSanford Retirement Savings Plan, Total assets ($B): 3.110361496 · Participants: 30495Sanford Retirement Savings PlanMdu Resources Group, Inc. 401(k) Retirement Plan, Total assets ($B): 0.829880488 · Participants: 8551Mdu Resources Group, Inc. 401(k) Retirement PlanDakotas Areawide IBEW-NECA Savings and Retirement Plan, Total assets ($B): 0.521170291 · Participants: 3853Dakotas Areawide IBEW-NECA Savings and Retirement PlanEide Bailly LLP 401(k) Profit Sharing Plan, Total assets ($B): 0.512524705 · Participants: 2920Eide Bailly LLP 401(k) Profit Sharing PlanOffutt Companies 401(k) Savings Plan, Total assets ($B): 0.501276799 · Participants: 4790Offutt Companies 401(k) Savings Plan
Knife River Corporation 401(k) Retirement Plan vs. nearby 401(k) plans in North Dakota, assets vs. participants
Compare Knife River Corporation 401(k) Retirement Plan side-by-side with 3 peers →

Knife River Corporation 401(k) Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside North Dakota, the nearest 401(k) by assets is Aultman 401(k) Plan in OH ($741M); by covered participants it is US Oncology, Inc. 401(k) Plan in TX (5,269 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($741M here).

Similar participant headcount

Nearest other-state filings by covered participants (5,269 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How have Knife River Corporation plan assets changed over time? ▼
Across 2 plan years on file (2023-2024), Knife River Corporation's sponsor-wide assets grew 14.8%, from $768M to $881M.
Where does Knife River Corporation 401(k) Retirement Plan rank by assets among Form 5500 filers? ▼
Knife River Corporation 401(k) Retirement Plan ranks in the 98th 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 Knife River Corporation 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by assets is Aultman 401(k) Plan in OH ($741M, 6,558 participants).
Which 401(k) plans cover a similar participant headcount to Knife River Corporation 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is US Oncology, Inc. 401(k) Plan in TX (5,269 participants, $303M in assets).

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 921008893.

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.