401(k) · DOL Form 5500 · 2022
Atrius Mso, LLC 401(k) Plan
Data updated 2026-08-06
- $1.4B
- Total assets
- 5,138
- Participants
- 99th
- Percentile by assets
- $263,600
- Avg per participant
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.
- 99th percentile by assets (of 139,258 plans)
- #19,967 in Healthcare & Social Assistance (20,087 peers)
Coverage in Minnesota
Atrius 401(k) Retirement Savings Plan covers 5,138 participants in Minnesota, 4.4x the typical Minnesota plan (state average ~1,161 per filing). Assets: $1.4B.
- $1.4B
- total plan assets (2022 EOY)
- 5,138
- covered participants
- 99th
- percentile by assets (of 139,258 plans)
- $263,600
- avg assets per participant
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.
Participants vs Minnesota filers
In Minnesota, the average filing covers about 1,161 participants across 2,725 plans. Atrius 401(k) Retirement Savings Plan reports 5,138 participants - 4.4x that state average ($1.4B EOY assets).
Minnesota filing particulars
| Total Assets (Beginning of Year) | $1.7B |
|---|---|
| Net Assets (End of Year) | $1.4B |
| Net Income | -$326M |
| Employer EIN | 871803974 |
| Plan Effective Date | 2001-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Atrius Mso, LLC)
| 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
- Unitedhealth Group 401(k) Savings Plan $18.6B · 176,886
- Medtronic Savings and Investment Plan (Also Known as the Medtronic 401(k) Plan) $12.2B · 38,825
- Target Corporation 401(k) Plan $11.2B · 400,422
- 3M Voluntary Investment Plan and Employee Stock Ownership Plan $11.1B · 37,159
- U.S. Bank 401(k) Savings Plan $8.3B · 67,646
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 (0.012% of the $11.6T held by all Form 5500 filers in the national rollup , and 0.006% of 89,805,449 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 (401(k), $1.6B, 5,484 participants)
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to Atrius 401(k) Retirement Savings Plan by total assets, not by location.
- Prime Healthcare Services, Inc. 401(k) Plan (CA) $1.4B · 31,963
- Vistra Thrift Plan (TX) $1.4B · 4,628
- Avaya Inc. Savings Plan for Salaried Employees (NJ) $1.4B · 2,409
- Telephone and Data Systems, Inc. Tax-Deferred Savings Plan (WI) $1.4B · 9,047
Frequently Asked Questions
How did Atrius 401(k) Retirement Savings Plan assets move in 2022? ▼
How have Atrius Mso, LLC plan assets changed over time? ▼
Where does Atrius 401(k) Retirement Savings Plan rank by assets among Form 5500 filers? ▼
Which 401(k) plans are similar in size to Atrius 401(k) Retirement Savings Plan? ▼
Next read for Atrius 401(k) Retirement Savings Plan
Filing takeaways
Ways to act on Atrius 401(k) Retirement Savings Plan's numbers.
- By total assets, Atrius 401(k) Retirement Savings Plan ranks among the largest 1% of all filed plans. See the largest plans
- Compare it side-by-side against 3 similar 401(k) plans in Minnesota. Compare plans
- Atrius Mso, LLC's sponsor-wide assets have grown 19.2% since 2022 across 3 plan years on file. More Healthcare & Social Assistance plans