401(k) · DOL Form 5500 · 2022

Millstone Medical Outsourcing, LLC 401(k) Plan

Data updated 2026-08-25

$10M
Total assets Small plan by assets
498
Participants Below avg headcount
65th
Percentile by assets National rank
$20,318
Avg per participant Low balance/head
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Official DOL plan name: Millstone Medical Outsourcing, LLC 401(k) Retirement Plan · Sponsored by Millstone Medical Outsourcing, LLC · Massachusetts · Administrative & Support Services

$10M in assets, 498 participants

Millstone Medical Outsourcing, LLC's Millstone Medical Outsourcing, LLC 401(k) Retirement Plan reported $10M in total assets and 498 participants in its 2022 DOL Form 5500 filing, ranking in the 65th 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.

  • #4,055 in Administrative & Support Services (4,927 peers)

Millstone Medical Outsourcing, LLC multi-year trail

Millstone Medical Outsourcing, LLC's plans moved +57.9% in assets from 2022 to 2024; this filing shows Millstone Medical Outsourcing, LLC 401(k) Retirement Plan at $10M / 498 participants.

#4,055
in Administrative & Support Services (4,927 peers)
-5.8%
assets change YoY

The plan reported a net loss of $618K for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan's mid-pack asset rank among Administrative & Support Services and all filers

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan vs every filed plan by assets

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

$10,118,392 Top 35% higher than 65% 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

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Millstone Medical Outsourcing, LLC 401(k) Retirement Plan sits mid-pack in the medium band (498 participants).

EBSA filing schedule strip

Filing strip 841654439 · Millstone Medical Outsourcing, LLC PY 2022 · 401(k)

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan · $10M · 498 · 65th

  • IND $10M
  • IND 498
  • IND 65th
  • IND 401(k)
  • IND near G.a. West & Company 401(k) Profit Sharing Plan & Trust
  • IND ind #4055

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 Administrative & Support Services retirement plans → · Plans in Massachusetts →

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan in the asset neighbourhood

Millstone Medical Outsourcing, LLC 401(k) Retirement PlanMillstone Medical Outsourcin…$10MG.a. West & Company 401(k) Profit Sharing Plan & TrustG.a. West & Company 401(k) P…$10MTfg 401(k) Savings Plan$10MBk Technologies, Inc. Retirement Savings PlanBk Technologies, Inc. Retire…$10MNippon Shokubai America Industries, Inc. Retirement and 401(k) Savings PlanNippon Shokubai America Indu…$10M
End-of-year total assets ($M) among Millstone Medical Outsourcing, LLC 401(k) Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Millstone Medical Outsourcing, LLC multi-year asset trail

Sponsor-wide plan assets over time

All Millstone Medical Outsourcing, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$16M 57.91648514902368% vs 2022
2024 filing year
$8M$10M$12M$14M$16M$18M 202220232024 $10.1M $16M ▲ +57.9%
Year Plans Participants Total Assets
2022 1 498 $10M
2023 1 549 $13M
2024 1 578 $16M

Millstone Medical Outsourcing, LLC filing trail (2022)

Total Assets (Beginning of Year)$11M
Net Assets (End of Year)$10M
Net Income-$618K
Employer EIN841654439
Plan Effective Date2008-01-01
Filing StatusFILING RECEIVED

Nearby 401(k) Plans in Massachusetts

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

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Millstone Medical Outsourcing, LLC 401(k) Retirement Plan, Total assets ($B): 0.010118392 · Participants: 498Millstone Medical Outsourcing, LLC 401(k) Retirement PlanFidelity Retirement Savings Plan, Total assets ($B): 22.953563448 · Participants: 52036Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 8.79802945 · Participants: 32843Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 5.810585521 · Participants: 13690Massachusetts Institute of Technology Supplemental 401(k) PlanPhilips North America 401(k) Plan, Total assets ($B): 5.180251859 · Participants: 19750Philips North America 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 4.853752256 · Participants: 18359Boston Scientific Corporation 401(k) Retirement Savings Plan
Millstone Medical Outsourcing, LLC 401(k) Retirement Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Millstone Medical Outsourcing, LLC 401(k) Retirement Plan side-by-side with 3 peers →

Millstone Medical Outsourcing, LLC 401(k) Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is G.a. West & Company 401(k) Profit Sharing Plan & Trust in AL ($10M); by covered participants it is Ehpv 401(k) Plan in NE (498 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (498 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 Millstone Medical Outsourcing, LLC 401(k) Retirement Plan assets move in 2022? ▼
Millstone Medical Outsourcing, LLC 401(k) Retirement Plan pulled back noticeably - down 5.8% during 2022, from $11M to $10M. Reported net income was -$618K.
How have Millstone Medical Outsourcing, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Millstone Medical Outsourcing, LLC's sponsor-wide assets grew 57.9%, from $10M to $16M.
Which 401(k) plans are similar in size to Millstone Medical Outsourcing, LLC 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by assets is G.a. West & Company 401(k) Profit Sharing Plan & Trust in AL ($10M, 585 participants).
Which 401(k) plans cover a similar participant headcount to Millstone Medical Outsourcing, LLC 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Ehpv 401(k) Plan in NE (498 participants, $5M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 841654439.

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.