Defined Benefit (Pension) · DOL Form 5500 · 2024

Groton School Pension Plan

Data updated 2026-08-25

$25M
Total assets Below avg plan size
74
Participants Small participant base
74th
Percentile by assets National rank
$339,455
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Groton School Defined Benefit Plan · Sponsored by Groton School · Massachusetts · Educational Services

$25M in assets, 74 participants

Groton School's Groton School Defined Benefit Plan reported $25M in total assets and 74 participants in its 2024 DOL Form 5500 filing, ranking in the 74th 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.

  • #2,119 in Educational Services (3,638 peers)

Groton School multi-year trail

Groton School's plans moved +21.2% in assets from 2022 to 2024; this filing shows Groton School Defined Benefit Plan at $25M / 74 participants.

#2,119
in Educational Services (3,638 peers)
+8.5%
assets growth YoY

Groton School Defined Benefit Plan's outsized position by total assets

Groton School Defined Benefit Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$25,119,685 Top 26% higher than 74% of 123,620 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 2024

Groton School Defined Benefit Plan among smaller filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Groton School Defined Benefit Plan is a small filing (74 participants) on this national headcount ladder.

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Groton School Defined Benefit Plan reported net income fell from $2M in the plan year 2023 filing to $2M in the plan year 2024 filing.
  • Groton School Defined Benefit Plan end-of-year assets rose from $23M in the plan year 2023 filing to $25M in the plan year 2024 filing.
  • Groton School Defined Benefit Plan reported participants fell from 76 in the plan year 2023 filing to 74 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 042104265 · Groton School PY 2024 · Defined Benefit (Pension)

Groton School Defined Benefit Plan · $25M · 74 · 74th

  • PHOTO $25M
  • IND 74
  • EOY 74th
  • 5500 Defined Benefit (Pension)
  • ASSETS near Snell & Wilmer L.L.P. Retirement Plan for Partners
  • PCT ind #2119

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 →

Groton School Defined Benefit Plan in the asset neighbourhood

Paxton Media Group, LLC Retirement PlanPaxton Media Group, LLC Reti…$25MGchi Retirement Plan$25MMaxxam Pension Plan$25MSnell & Wilmer L.L.P. Retirement Plan for PartnersSnell & Wilmer L.L.P. Retire…$25MGroton School Defined Benefit PlanGroton School Defined Benefi…$25M
End-of-year total assets ($M) among Groton School Defined Benefit Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2024.

Groton School multi-year asset trail

Sponsor-wide plan assets over time

All Groton School plans reported in each filing year

Latest sponsor-wide plan assets
$112M 21.224308979260275% vs 2022
2024 filing year
$90M$100M$110M$120M 202220232024 $92.6M $112M ▲ +21.2%
Year Plans Participants Total Assets
2022 2 281 $93M
2023 2 279 $103M
2024 2 269 $112M

Groton School filing trail (2024)

Total Assets (Beginning of Year)$23M
Net Assets (End of Year)$25M
Net Income$2M
Employer EIN042104265
Plan Effective Date1991-07-01
Filing StatusFILING RECEIVED

Nearby Defined Benefit (Pension) Plans in Massachusetts

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Groton School Defined Benefit Plan vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -5051015 Total assets ($B) Participants Groton School Defined Benefit Plan, Total assets ($B): 0.025119685 · Participants: 74Groton School Defined Benefit PlanConsolidated Cash Balance Program of Mass General Brigham and Member Organizations, Total assets ($B): 11.586293172 · Participants: 60621Consolidated Cash Balance Program of Mass General Brigham and Member OrganizationsNew England Teamsters Pension Fund, Total assets ($B): 9.093299462 · Participants: 21577New England Teamsters Pension FundLiberty Mutual Retirement Benefit Plan, Total assets ($B): 6.250686483 · Participants: 34910Liberty Mutual Retirement Benefit PlanMassachusetts Institute of Technology Basic Retirement Plan, Total assets ($B): 5.888715533 · Participants: 12533Massachusetts Institute of Technology Basic Retirement PlanN. Atlantic States Carp. Pension Fund, Total assets ($B): 5.086051556 · Participants: 16946N. Atlantic States Carp. Pension Fund
Groton School Defined Benefit Plan vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants
Compare Groton School Defined Benefit Plan side-by-side with 3 peers →

Groton School Defined Benefit Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Massachusetts, the nearest Defined Benefit (Pension) by assets is Snell & Wilmer L.L.P. Retirement Plan for Partners in AZ ($25M); by covered participants it is The Gonnella Pension Plan in IL (74 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($25M here).

Similar participant headcount

Nearest other-state filings by covered participants (74 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Groton School Defined Benefit Plan assets move in 2024? ▼
Groton School Defined Benefit Plan grew at a solid clip - up 8.5% during 2024, from $23M to $25M. Reported net income was $2M.
How have Groton School plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Groton School's sponsor-wide assets grew 21.2%, from $93M to $112M.
Which Defined Benefit (Pension) plans are similar in size to Groton School Defined Benefit Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Snell & Wilmer L.L.P. Retirement Plan for Partners in AZ ($25M, 230 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Groton School Defined Benefit Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is The Gonnella Pension Plan in IL (74 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 042104265.

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.