Other · DOL Form 5500 · 2023

Thayer Academy Retirement Plan

Data updated 2026-08-25

$82M
Total assets Below avg plan size
210
Participants Below avg headcount
90th
Percentile by assets National rank
$389,478
Avg per participant High balance/head
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Official DOL plan name: Thayer Academy 403(b) Retirement Plan · Sponsored by Thayer Academy · Massachusetts · Educational Services

$82M in assets, 210 participants

Thayer Academy's Thayer Academy 403(b) Retirement Plan reported $82M in total assets and 210 participants in its 2023 DOL Form 5500 filing, ranking in the 90th 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.

  • #3,061 in Educational Services (3,735 peers)

Coverage in Massachusetts

Thayer Academy 403(b) Retirement Plan covers 210 participants in Massachusetts, about 32% of the average Massachusetts filer (state average ~659 per filing). Assets: $82M.

#3,061
in Educational Services (3,735 peers)
+15.8%
assets growth YoY
0.8×
vs typical plan assets (national mean)

Thayer Academy 403(b) Retirement Plan's outsized position by total assets

Thayer Academy 403(b) Retirement Plan vs every filed plan by assets

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

$81,790,365 Top 10% higher than 90% 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

Thayer Academy 403(b) Retirement Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Thayer Academy 403(b) Retirement Plan sits mid-pack in the medium band (210 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Thayer Academy 403(b) Retirement Plan reported net income rose from -$16M in the plan year 2022 filing to $11M in the plan year 2023 filing.
  • Thayer Academy 403(b) Retirement Plan end-of-year assets rose from $71M in the plan year 2022 filing to $82M in the plan year 2023 filing.
  • Thayer Academy 403(b) Retirement Plan reported participants fell from 215 in the plan year 2022 filing to 210 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 042105781 · Thayer Academy PY 2023 · Other

Thayer Academy 403(b) Retirement Plan · $82M · 210 · 90th

  • EBSA $82M
  • PART 210
  • TYPE 90th
  • NET Other
  • BOOK near Marietta College Retirement Plan for Eligible Employees
  • VS-ST ind #3061

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 Educational Services retirement plans → · Plans in Massachusetts →

Thayer Academy 403(b) Retirement Plan in the asset neighbourhood

Union Hospital 403(b) Savings PlanUnion Hospital 403(b) Saving…$82MLa Jolla Country Day School Defined Contribution Retirement PlanLa Jolla Country Day School …$82MGood Shepherd Health Care System Tax Sheltered Retirement PlanGood Shepherd Health Care Sy…$82MThayer Academy 403(b) Retirement PlanThayer Academy 403(b) Retire…$82MMarietta College Retirement Plan for Eligible EmployeesMarietta College Retirement …$82M
End-of-year total assets ($M) among Thayer Academy 403(b) Retirement Plan and nearest nationwide Other peers. Source: DOL Form 5500 plan year 2023.

Massachusetts filing particulars

Total Assets (Beginning of Year)$71M
Net Assets (End of Year)$82M
Net Income$11M
Employer EIN042105781
Plan Effective Date1972-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Thayer Academy)

Sponsor-wide plan assets over time

All Thayer Academy plans reported in each filing year

Latest sponsor-wide plan assets
$91M 28.096153539403108% vs 2022
2024 filing year
$60M$70M$80M$90M$100M 202220232024 $70.7M $90.5M ▲ +28.1%
Year Plans Participants Total Assets
2022 1 215 $71M
2023 1 210 $82M
2024 1 207 $91M

Nearby Other Plans in Massachusetts

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

Thayer Academy 403(b) Retirement Plan vs. nearby Other plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -50000500010000150002000025000 -20246 Total assets ($B) Participants Thayer Academy 403(b) Retirement Plan, Total assets ($B): 0.081790365 · Participants: 210Thayer Academy 403(b) Retirement PlanThe Mitre Corporation Tax Sheltered Annuity Plan, Total assets ($B): 4.700618255 · Participants: 11980The Mitre Corporation Tax Sheltered Annuity PlanHarvard University Tax Deferred Annuity Plan, Total assets ($B): 3.76566072 · Participants: 21064Harvard University Tax Deferred Annuity PlanBoston University Retirement Plan, Total assets ($B): 2.758080647 · Participants: 8130Boston University Retirement PlanBeth Israel Deaconess Medical Center Voluntary 403(b) Plan, Total assets ($B): 2.396382678 · Participants: 13981Beth Israel Deaconess Medical Center Voluntary 403(b) PlanNortheastern University Retirement Plan, Total assets ($B): 2.333339945 · Participants: 8553Northeastern University Retirement Plan
Thayer Academy 403(b) Retirement Plan vs. nearby Other plans in Massachusetts, assets vs. participants
Compare Thayer Academy 403(b) Retirement Plan side-by-side with 3 peers →

Thayer Academy 403(b) Retirement Plan's out-of-state Other peers by assets and headcount

Outside Massachusetts, the nearest Other by assets is Marietta College Retirement Plan for Eligible Employees in OH ($82M); by covered participants it is Muscular Dystrophy Association, Inc. Savings Plan in IL (210 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (210 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 Thayer Academy 403(b) Retirement Plan assets move in 2023? ▼
Thayer Academy 403(b) Retirement Plan grew sharply - up 15.8% during 2023, from $71M to $82M. Reported net income was $11M.
How have Thayer Academy plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Thayer Academy's sponsor-wide assets grew 28.1%, from $71M to $91M.
Where does Thayer Academy 403(b) Retirement Plan rank by assets among Form 5500 filers? ▼
Thayer Academy 403(b) Retirement Plan ranks in the 90th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which Other plans are similar in size to Thayer Academy 403(b) Retirement Plan? ▼
Among Other plans in other states, the closest by assets is Marietta College Retirement Plan for Eligible Employees in OH ($82M, 358 participants).
Which Other plans cover a similar participant headcount to Thayer Academy 403(b) Retirement Plan? ▼
Among Other plans in other states, the closest by covered participants is Muscular Dystrophy Association, Inc. Savings Plan in IL (210 participants, $20M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 042105781.

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.