Other · DOL Form 5500 · 2023

Middlesex Health Retirement Plan

Data updated 2026-08-25

$420M
Total assets Above avg plan size
4,477
Participants Above avg headcount
97th
Percentile by assets National rank
$93,834
Avg per participant Below avg balance/head
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Official DOL plan name: Middlesex Retirement Savings and Investment Plan · Sponsored by Middlesex Health · Connecticut · Healthcare & Social Assistance

$420M in assets, 4,477 participants

Middlesex Health's Middlesex Retirement Savings and Investment Plan reported $420M in total assets and 4,477 participants in its 2023 DOL Form 5500 filing, ranking in the 97th 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.

  • #17,197 in Healthcare & Social Assistance (17,684 peers)

Coverage in Connecticut

Middlesex Retirement Savings and Investment Plan covers 4,477 participants in Connecticut, 6.2x the typical Connecticut plan (state average ~718 per filing). Assets: $420M.

#17,197
in Healthcare & Social Assistance (17,684 peers)
+19.5%
assets growth YoY
4.2×
vs typical plan assets (national mean)

Middlesex Retirement Savings and Investment Plan's outsized position by total assets

Middlesex Retirement Savings and Investment Plan vs every filed plan by assets

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

$420,093,877 Top 3% higher than 97% 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

Middlesex Retirement Savings and Investment 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. Middlesex Retirement Savings and Investment Plan lands in the large band (4,477 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Middlesex Retirement Savings and Investment Plan reported net income rose from -$52M in the plan year 2022 filing to $69M in the plan year 2023 filing.
  • Middlesex Retirement Savings and Investment Plan end-of-year assets rose from $351M in the plan year 2022 filing to $420M in the plan year 2023 filing.
  • Middlesex Retirement Savings and Investment Plan reported participants rose from 4,254 in the plan year 2022 filing to 4,477 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 222676137 · Middlesex Health PY 2023 · Other

Middlesex Retirement Savings and Investment Plan · $420M · 4,477 · 97th

  • SCH $420M
  • SCH 4,477
  • SCH 97th
  • SCH Other
  • SCH near Stevens Institute of Technology Defined Contributi
  • SCH ind #17197

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 Connecticut →

Middlesex Retirement Savings and Investment Plan in the asset neighbourhood

Assoc of Independent Colleges and Universities of Ohio MepAssoc of Independent College…$425MUniversity of St. Thomas Retirement PlanUniversity of St. Thomas Ret…$422MSolutionhealth & Elliot Health System 403(b) Savings PlanSolutionhealth & Elliot Heal…$421MMiddlesex Retirement Savings and Investment PlanMiddlesex Retirement Savings…$420MStevens Institute of Technology Defined ContributiStevens Institute of Technol…$420M
End-of-year total assets ($M) among Middlesex Retirement Savings and Investment Plan and nearest nationwide Other peers. Source: DOL Form 5500 plan year 2023.

Connecticut filing particulars

Total Assets (Beginning of Year)$351M
Net Assets (End of Year)$420M
Net Income$69M
Employer EIN222676137
Plan Effective Date2009-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Middlesex Health)

Sponsor-wide plan assets over time

All Middlesex Health plans reported in each filing year

Latest sponsor-wide plan assets
$473M 34.63535457605019% vs 2022
2024 filing year
$300M$350M$400M$450M$500M 202220232024 $351M $473M ▲ +34.6%
Year Plans Participants Total Assets
2022 1 4,254 $351M
2023 1 4,477 $420M
2024 1 4,437 $473M

Nearby Other Plans in Connecticut

Peer Other plans, same state, same plan type, ranked by total assets.

Middlesex Retirement Savings and Investment Plan vs. nearby Other plans in Connecticut, assets vs. participants Scatter plot of 6 data points. 0500010000150002000025000 02468 Total assets ($B) Participants Middlesex Retirement Savings and Investment Plan, Total assets ($B): 0.420093877 · Participants: 4477Middlesex Retirement Savings and Investment PlanYale University Retirement Account Plan, Total assets ($B): 7.406887292 · Participants: 12259Yale University Retirement Account PlanYale-New Haven Hospital and Tax Exempt Affiliates Tax Sheltered Annuity Plan, Total assets ($B): 1.999824405 · Participants: 22121Yale-New Haven Hospital and Tax Exempt Affiliates Tax Sheltered Annuity PlanYale University Tax-Deferred 403(b) Savings Plan, Total assets ($B): 0.840086772 · Participants: 18754Yale University Tax-Deferred 403(b) Savings PlanNuvance Health 403(b) Plan (F/K/a Health Quest Systems, Inc. Tax Deferred Annuity Plan), Total assets ($B): 0.705011479 · Participants: 2287Nuvance Health 403(b) Plan (F/K/a Health Quest Systems, Inc. Tax Deferred Annuity Plan)Hartford Healthcare 403(b)Plan, Total assets ($B): 0.642937869 · Participants: 5192Hartford Healthcare 403(b)Plan
Middlesex Retirement Savings and Investment Plan vs. nearby Other plans in Connecticut, assets vs. participants

Middlesex Retirement Savings and Investment Plan's out-of-state Other peers by assets and headcount

Outside Connecticut, the nearest Other by assets is Stevens Institute of Technology Defined Contributi in NJ ($420M); by covered participants it is Shriners Hospitals for Children Retirement Savings Plan in FL (4,477 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (4,477 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 Middlesex Retirement Savings and Investment Plan assets move in 2023?
Middlesex Retirement Savings and Investment Plan grew sharply - up 19.5% during 2023, from $351M to $420M. Reported net income was $69M.
How have Middlesex Health plan assets changed over time?
Across 3 plan years on file (2022-2024), Middlesex Health's sponsor-wide assets grew 34.6%, from $351M to $473M.
Where does Middlesex Retirement Savings and Investment Plan rank by assets among Form 5500 filers?
Middlesex Retirement Savings and Investment Plan ranks in the 97th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which Other plans are similar in size to Middlesex Retirement Savings and Investment Plan?
Among Other plans in other states, the closest by assets is Stevens Institute of Technology Defined Contributi in NJ ($420M, 1,330 participants).
Which Other plans cover a similar participant headcount to Middlesex Retirement Savings and Investment Plan?
Among Other plans in other states, the closest by covered participants is Shriners Hospitals for Children Retirement Savings Plan in FL (4,477 participants, $688M in assets).