401(k) · DOL Form 5500 · 2022

Atrius Mso, LLC 401(k) Plan

Data updated 2026-08-25

$1.4B
Total assets Very large vs avg
5,138
Participants Above avg headcount
99th
Percentile by assets National rank
$263,600
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Atrius 401(k) Retirement Savings Plan · Sponsored by Atrius Mso, LLC · Minnesota · Healthcare & Social Assistance

$1.4B in assets, 5,138 participants

Atrius Mso, LLC's Atrius 401(k) Retirement Savings Plan reported $1.4B in total assets and 5,138 participants in its 2022 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.

  • #19,940 in Healthcare & Social Assistance (20,060 peers)

Coverage in Minnesota

Atrius 401(k) Retirement Savings Plan covers 5,138 participants in Minnesota, 4.6x the typical Minnesota plan (state average ~1,126 per filing). Assets: $1.4B.

#19,940
in Healthcare & Social Assistance (20,060 peers)
-19.4%
assets change YoY
14×
vs typical plan assets (national mean)

The plan reported a net loss of $326M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Atrius 401(k) Retirement Savings Plan's outsized position by total assets

Atrius 401(k) Retirement Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$1,354,374,367 Top 1% higher than 99% of 139,123 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 2022

Atrius 401(k) Retirement Savings Plan's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Atrius 401(k) Retirement Savings Plan lands in the large band (5,138 participants).

Published 5500 schedule card

Filing strip 871803974 · Atrius Mso, LLC PY 2022 · 401(k)

Atrius 401(k) Retirement Savings Plan · $1.4B · 5,138 · 99th

  • BOY $1.4B
  • SCH 5,138
  • EBSA 99th
  • PART 401(k)
  • TYPE near Prime Healthcare Services, Inc. 401(k) Plan
  • NET ind #19940

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 Healthcare & Social Assistance retirement plans → · Plans in Minnesota →

Atrius 401(k) Retirement Savings Plan in the asset neighbourhood

Avaya Inc. Savings Plan for Salaried EmployeesAvaya Inc. Savings Plan for …$1.4BAtrius 401(k) Retirement Savings PlanAtrius 401(k) Retirement Sav…$1.4BPrime Healthcare Services, Inc. 401(k) PlanPrime Healthcare Services, I…$1.4BVistra Thrift Plan$1.4BTelephone and Data Systems, Inc. Tax-Deferred Savings PlanTelephone and Data Systems, …$1.4B
End-of-year total assets ($B) among Atrius 401(k) Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Minnesota filing particulars

Total Assets (Beginning of Year)$1.7B
Net Assets (End of Year)$1.4B
Net Income-$326M
Employer EIN871803974
Plan Effective Date2001-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Atrius Mso, LLC)

Sponsor-wide plan assets over time

All Atrius Mso, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$1.6B 19.234049709388806% vs 2022
2024 filing year
$1.3B$1.4B$1.5B$1.6B$1.7B 202220232024 $1.35B $1.61B ▲ +19.3%
Year Plans Participants Total Assets
2022 1 5,138 $1.4B
2023 1 5,225 $1.5B
2024 1 5,484 $1.6B

Nearby 401(k) Plans in Minnesota

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

Atrius 401(k) Retirement Savings Plan vs. nearby 401(k) plans in Minnesota, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000400000500000 05101520 Total assets ($B) Participants Atrius 401(k) Retirement Savings Plan, Total assets ($B): 1.354374367 · Participants: 5138Atrius 401(k) Retirement Savings PlanUnitedhealth Group 401(k) Savings Plan, Total assets ($B): 18.576379778 · Participants: 176886Unitedhealth Group 401(k) Savings PlanMedtronic Savings and Investment Plan (Also Known as the Medtronic 401(k) Plan), Total assets ($B): 12.198295 · Participants: 38825Medtronic Savings and Investment Plan (Also Known as the Medtronic 401(k) Plan)Target Corporation 401(k) Plan, Total assets ($B): 11.216824857 · Participants: 400422Target Corporation 401(k) Plan3M Voluntary Investment Plan and Employee Stock Ownership Plan, Total assets ($B): 11.138527656 · Participants: 371593M Voluntary Investment Plan and Employee Stock Ownership PlanU.S. Bank 401(k) Savings Plan, Total assets ($B): 8.266408521 · Participants: 67646U.S. Bank 401(k) Savings Plan
Atrius 401(k) Retirement Savings Plan vs. nearby 401(k) plans in Minnesota, assets vs. participants

Scale composition for Atrius 401(k) Retirement Savings Plan

Atrius 401(k) Retirement Savings Plan reports $1.4B in end-of-year assets across 5,138 participants (0.011% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.005% of 93,925,755 covered participants) - about $263,600 per participant (1.9x the national average assets-per-participant) . Net income for plan year 2022 was -$326M.

This plan identity (EIN 871803974, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.4B to $1.6B (+19.2%) while covered participants moved from 5,138 to 5,484 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 5,138 $1.4B This page
2023 5,225 $1.5B Open filing
2024 · index core 5,484 $1.6B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Atrius 401(k) Retirement Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Minnesota, the nearest 401(k) by assets is Prime Healthcare Services, Inc. 401(k) Plan in CA ($1.4B); by covered participants it is Trustaff Management Inc. 401(k) Profit Sharing Plan and Trust in OH (5,140 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.4B here).

Similar participant headcount

Nearest other-state filings by covered participants (5,138 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Atrius 401(k) Retirement Savings Plan assets move in 2022? ▼
Atrius 401(k) Retirement Savings Plan declined sharply - down 19.4% during 2022, from $1.7B to $1.4B. Reported net income was -$326M.
How have Atrius Mso, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Atrius Mso, LLC's sponsor-wide assets grew 19.2%, from $1.4B to $1.6B.
Where does Atrius 401(k) Retirement Savings Plan rank by assets among Form 5500 filers? ▼
Atrius 401(k) Retirement Savings Plan ranks in the 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Atrius 401(k) Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Prime Healthcare Services, Inc. 401(k) Plan in CA ($1.4B, 31,963 participants).
Which 401(k) plans cover a similar participant headcount to Atrius 401(k) Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Trustaff Management Inc. 401(k) Profit Sharing Plan and Trust in OH (5,140 participants, $23M in assets).