Other · DOL Form 5500 · 2024

Marlborough School Retirement Plan

Data updated 2026-08-11

$64M
Total assets
146
Participants
87th
Percentile by assets
$440,669
Avg per participant
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Official DOL plan name: Marlborough School Defined Contribution Retirement Plan · Sponsored by Marlborough School · California · Educational Services

$64M in assets, 146 participants

Marlborough School's Marlborough School Defined Contribution Retirement Plan reported $64M in total assets and 146 participants in its 2024 DOL Form 5500 filing, ranking in the 87th 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.

  • 87th percentile by assets (of 123,622 plans)
  • #2,777 in Educational Services (3,638 peers)

Coverage in California

Marlborough School Defined Contribution Retirement Plan covers 146 participants in California, about 23% of the average California filer (state average ~630 per filing). Assets: $64M.

$64M
total plan assets (2024 EOY)
146
covered participants
87th
percentile by assets (of 123,622 plans)
$440,669
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Marlborough School Defined Contribution Retirement Plan reported net income fell from $9M in the plan year 2023 filing to $5M in the plan year 2024 filing.
  • Marlborough School Defined Contribution Retirement Plan reported participants rose from 133 in the plan year 2023 filing to 146 in the plan year 2024 filing.
  • Marlborough School Defined Contribution Retirement Plan end-of-year assets rose from $60M in the plan year 2023 filing to $64M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Participants vs California filers

In California, the average filing covers about 630 participants across 15,291 plans. Marlborough School Defined Contribution Retirement Plan reports 146 participants - about 23% of that state average ($64M EOY assets).

California filing particulars

Total Assets (Beginning of Year)$60M
Net Assets (End of Year)$64M
Net Income$5M
Employer EIN952816435
Plan Effective Date1965-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Marlborough School)

$45M$50M$55M$60M$65M$70M 202220232024 $50.9M $64.3M ▲ +26.4%
Total plan assets by year, all Marlborough School plans on file
Year Plans Participants Total Assets
2022 1 131 $51M
2023 1 133 $60M
2024 1 146 $64M

Nearby Other Plans in California

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

Marlborough School Defined Contribution Retirement Plan vs. nearby Other plans in California, assets vs. participants

Marlborough School Defined Contribution Retirement Plan vs. nearby Other plans in California, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -5051015 Total assets ($B) Participants Marlborough School D…Stanford Contributor…Sutter Health 403(b)…Stanford Health Care…Caltech Base Retirem…University of Southe…
Marlborough School Defined Contribution Retirement Plan vs. nearby Other plans in California, assets vs. participants

Similar-Sized Other Plans Nationally

Other plans in other states closest to Marlborough School Defined Contribution Retirement Plan by total assets, not by location.

Frequently Asked Questions

How did Marlborough School Defined Contribution Retirement Plan assets move in 2024?
Marlborough School Defined Contribution Retirement Plan grew at a solid clip - up 8.0% during 2024, from $60M to $64M. Reported net income was $5M.
How have Marlborough School plan assets changed over time?
Across 3 plan years on file (2022-2024), Marlborough School's sponsor-wide assets grew 26.4%, from $51M to $64M.
Where does Marlborough School Defined Contribution Retirement Plan rank by assets among Form 5500 filers?
Marlborough School Defined Contribution Retirement Plan ranks in the 87th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which Other plans are similar in size to Marlborough School Defined Contribution Retirement Plan?
Among Other plans in other states, the closest by assets is Public Health Solutions 403(b) Plan in NY ($64M, 610 participants).

Next read for Marlborough School Defined Contribution …

Filing takeaways

Ways to act on Marlborough School Defined Contribution Retirement Plan's numbers.