Atrius Mso, LLC: final filing for its Health and welfare plan, 5,180 participants (Newton, MA)
Atrius Mso, LLC (Newton, Massachusetts): final filing for its Health and welfare plan, 5,180 participants (Newton, MA). Its participants of 5,180 is top-decile (95th percentile of 126,658 records). Dated 23 days ago, it is in the active follow-up window. Score 80/100. As of 2026-11-04, from U.S. Department of Labor EBSA Form 5500 filings (current plan-year dataset).
Data as of · Compiled by Zalwin from U.S. Department of Labor EBSA Form 5500 filings (current plan-year dataset)
participants: 5,180 · 95th percentile of 126,658 BenefitPlanPulse records · 17.6x the median
Free preview: all 11 published fields of this record are shown below. Locked: 499 related MA BenefitPlanPulse records and the 6-column CSV export.
| Field | Value |
|---|---|
| Employer (plan sponsor) | Atrius Mso, LLC |
| EIN | 871803974 |
| Plan | Atrius Health, INC. Health And Welfare Plan |
| Plan type | Health and welfare |
| Trigger | Final filing (plan terminating or merging) |
| Participants | 5180 |
| Industry | Health care |
| Location | Newton, MA |
| Plan effective | 2001-01-01 |
| Plan year | 2025 |
| Filed | 2026-10-13 |
| participants percentile | 95th of 126,658 (median 294, 17.6x median) |
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CSV columns: Employer · Plan · Trigger · Participants · State · Filed · official source URL
- Source agency: U.S. Department of Labor EBSA Form 5500 filings (current plan-year dataset)
- Record date: 2026-10-13
- Data refreshed: 2026-11-04
- Refunds on request within 14 days
Top BenefitPlanPulse records (MA first): President & Fellows Of Harvard College Harvard Human Resourc · President & Fellows Of Harvard College Harvard Human Resourc · Beth Israel Lahey Health · Eg Retail (America) LLC · National Medical Care, INC. · Browse all by state and category →
LIVE PUBLIC DATA Source: U.S. Department of Labor EBSA Form 5500 filings (current plan-year dataset) · Last refreshed: Wed, 04 Nov 2026 01:39:03 GMT
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Peer benchmark and outreach value: Atrius Mso, LLC and 4,044 Massachusetts peers
- Massachusetts BenefitPlanPulse records like this one: 4,044
- Atrius Mso, LLC's participants: 95th percentile of 126,658 records
- Timing: Medium: dated in the last 30 days
- Estimated pipeline if you contact every Massachusetts peer: $808,800 (peers × rate × deal size; an estimate from your assumptions, not a forecast)
80 / 100 Score
- Filed in the last 30 days.
- Final filing: plan ending or merging.
- 5180 participants.
What is the BenefitPlanPulse record for Atrius Mso, LLC in Newton, Massachusetts?
Atrius Mso, LLC filed a Form 5500 for its Health and welfare plan (final filing (plan terminating or merging)) with 5180 participants on 2026-10-13.
How does Atrius Mso, LLC compare to other Massachusetts BenefitPlanPulse records?
This is a top-decile record: its participants of 5,180 is 17.6x the median of 294 across 126,658 records. It is 23 days old, still within a typical 45-day follow-up window. Its Score of 80/100 puts it among the stronger signals in this feed.
Atrius Mso, LLC vs. top 3 peers
| Organization | Location | Amount | Percentile | Record date |
|---|---|---|---|---|
| Atrius Mso, LLC | Newton, MA | 5,180 | 95th | 2026-10-13 |
| Midwest Transport, INC. | Robinson, IL | 964 | 80th | 2026-10-19 |
| Absolute Beauty, LLC | Kansas City, MO | 675 | 73rd | 2026-10-20 |
| Healthcare Accounting Services, LLC | Chicago, IL | 280 | 48th | 2026-10-22 |
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From public Form 5500 filings released by the U.S. Department of Labor. Employer and plan level only: we never list signers, contacts or participants. A final filing can mean a termination, merger or transfer; read the filing on EFAST.