401(k) · DOL Form 5500 · 2023

Mac Arthur Co 401(k) Plan

Data updated 2026-08-25

$1.0B
Total assets Very large vs avg
1,073
Participants Near avg headcount
99th
Percentile by assets National rank
$940,306
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan · Sponsored by Mac Arthur Co · Minnesota · Manufacturing

$1.0B in assets, 1,073 participants

Mac Arthur Co's Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan reported $1.0B in total assets and 1,073 participants in its 2023 DOL Form 5500 filing, ranking in the 99th 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.

  • #18,271 in Manufacturing (18,722 peers)

Where Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan sits by assets

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan sits among the largest 1% of all filed plans, $1.0B for 1,073 participants (~$940,306/participant), up 23.2% in 2023.

#18,271
in Manufacturing (18,722 peers)
+23.2%
assets growth YoY
10×
vs typical plan assets (national mean)

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan's outsized position by total assets

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan vs every filed plan by assets

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

$1,008,948,712 Top 1% higher than 99% 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

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership 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. Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan lands in the large band (1,073 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan reported net income fell from $124M in the plan year 2022 filing to $6M in the plan year 2023 filing.
  • Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan end-of-year assets rose from $819M in the plan year 2022 filing to $1.0B in the plan year 2023 filing.
  • Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan reported participants rose from 1,049 in the plan year 2022 filing to 1,073 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 410388120 · Mac Arthur Co PY 2023 · 401(k)

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan · $1.0B · 1,073 · 99th

  • EIN $1.0B
  • RANK 1,073
  • PHOTO 99th
  • IND 401(k)
  • EOY near Cleveland-Cliffs Steel LLC Savings and Investment Plan
  • 5500 ind #18271

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 Manufacturing retirement plans → · Plans in Minnesota →

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan in the asset neighbourhood

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership PlanMac Arthur Co. 2015 Amended …$1.0BCleveland-Cliffs Steel LLC Savings and Investment PlanCleveland-Cliffs Steel LLC S…$1.0BLsegh, Inc. 401(k) Plan$1.0BDuly Health and Care 401(k) PlanDuly Health and Care 401(k) …$1.0BCountry/ Iaa 401(k) Plan$1.0B
End-of-year total assets ($B) among Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$819M
Net Assets (End of Year)$729M
Net Income$6M
Employer EIN410388120
Plan Effective Date1974-12-31
Filing StatusFILING RECEIVED

Sponsor Plan History (Mac Arthur Co)

Sponsor-wide plan assets over time

All Mac Arthur Co plans reported in each filing year

Latest sponsor-wide plan assets
$1.0B 24.998265518719023% vs 2022
2024 filing year
$0.7B$0.8B$0.9B$1B$1.1B 202220232024 $0.82B $1.02B ▲ +24.4%
Year Plans Participants Total Assets
2022 2 1,055 $819M
2023 2 1,078 $1.0B
2024 2 1,303 $1.0B

Nearby 401(k) Plans in Minnesota

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

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan vs. nearby 401(k) plans in Minnesota, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000400000500000 -50510152025 Total assets ($B) Participants Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan, Total assets ($B): 1.008948712 · Participants: 1073Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership PlanUnitedhealth Group 401(k) Savings Plan, Total assets ($B): 22.432100178 · Participants: 198972Unitedhealth Group 401(k) Savings PlanTarget Corporation 401(k) Plan, Total assets ($B): 13.008265857 · Participants: 432617Target Corporation 401(k) PlanMedtronic Savings and Investment Plan, Total assets ($B): 12.931979 · Participants: 44342Medtronic Savings and Investment Plan3M Voluntary Investment Plan and Employee Stock Ownership Plan, Total assets ($B): 12.04661588 · Participants: 360493M Voluntary Investment Plan and Employee Stock Ownership PlanU.S. Bank 401(k) Savings Plan, Total assets ($B): 10.271161911 · Participants: 75272U.S. Bank 401(k) Savings Plan
Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan vs. nearby 401(k) plans in Minnesota, assets vs. participants

Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan's out-of-state 401(k) peers by assets and headcount

Outside Minnesota, the nearest 401(k) by assets is Cleveland-Cliffs Steel LLC Savings and Investment Plan in IL ($1.0B); by covered participants it is Peoples First Properties Retirement Savings Plan in FL (1,073 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.0B here).

Similar participant headcount

Nearest other-state filings by covered participants (1,073 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 did Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan assets move in 2023? ▼
Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan grew sharply - up 23.2% during 2023, from $819M to $1.0B. Reported net income was $6M.
How have Mac Arthur Co plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mac Arthur Co's sponsor-wide assets grew 25.0%, from $819M to $1.0B.
Where does Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan rank by assets among Form 5500 filers? ▼
Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan? ▼
Among 401(k) plans in other states, the closest by assets is Cleveland-Cliffs Steel LLC Savings and Investment Plan in IL ($1.0B, 3,230 participants).
Which 401(k) plans cover a similar participant headcount to Mac Arthur Co. 2015 Amended and Restated 401(k) and Employee Stock Ownership Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Peoples First Properties Retirement Savings Plan in FL (1,073 participants, $18M in assets).