Defined Benefit (Pension) · DOL Form 5500 · 2023

Trustees of Massachusetts Service Employees' Pension Plan Pension Plan

Data updated 2026-08-25

$276M
Total assets Near avg plan size
12,718
Participants Very large workforce
96th
Percentile by assets National rank
$21,707
Avg per participant Low balance/head
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Official DOL plan name: Massachusetts Service Employees Pension Plan · Sponsored by Trustees of Massachusetts Service Employees' Pension Plan · Massachusetts · Other Services

$276M in assets, 12,718 participants

Trustees of Massachusetts Service Employees' Pension Plan's Massachusetts Service Employees Pension Plan reported $276M in total assets and 12,718 participants in its 2023 DOL Form 5500 filing, ranking in the 96th 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.

  • #7,776 in Other Services (7,857 peers)

Coverage in Massachusetts

Massachusetts Service Employees Pension Plan covers 12,718 participants in Massachusetts, 19x the typical Massachusetts plan (state average ~659 per filing). Assets: $276M.

#7,776
in Other Services (7,857 peers)
+11.3%
assets growth YoY
2.8×
vs typical plan assets (national mean)

Massachusetts Service Employees Pension Plan's outsized position by total assets

Massachusetts Service Employees Pension Plan vs every filed plan by assets

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

$276,075,524 Top 4% higher than 96% 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

Massachusetts Service Employees Pension Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Massachusetts Service Employees Pension Plan is a mega filing (12,718 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Massachusetts Service Employees Pension Plan reported net income rose from -$24M in the plan year 2022 filing to $28M in the plan year 2023 filing.
  • Massachusetts Service Employees Pension Plan end-of-year assets rose from $248M in the plan year 2022 filing to $276M in the plan year 2023 filing.
  • Massachusetts Service Employees Pension Plan reported participants rose from 12,521 in the plan year 2022 filing to 12,718 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Form 5500 schedule snapshot

Filing strip 046344921 · Trustees of Massachusetts Service Employees' Pension Plan PY 2023 · Defined Benefit (Pension)

Massachusetts Service Employees Pension Plan · $276M · 12,718 · 96th

  • BOY $276M
  • SCH 12,718
  • EBSA 96th
  • PART Defined Benefit (Pension)
  • TYPE near I.B.E.W. Local 456 Pension Plan
  • NET ind #7776

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 Other Services retirement plans → · Plans in Massachusetts →

Massachusetts Service Employees Pension Plan in the asset neighbourhood

Pernod Ricard USA, LLC Employees' Retirement PlanPernod Ricard USA, LLC Emplo…$276MHenkel of America Retirement PlanHenkel of America Retirement…$276MMassachusetts Service Employees Pension PlanMassachusetts Service Employ…$276MI.B.E.W. Local 456 Pension PlanI.B.E.W. Local 456 Pension P…$276MAkin Gump Strauss Hauer & Feld Partners' Retirement PlanAkin Gump Strauss Hauer & Fe…$276M
End-of-year total assets ($M) among Massachusetts Service Employees Pension Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

Massachusetts filing particulars

Total Assets (Beginning of Year)$248M
Net Assets (End of Year)$273M
Net Income$28M
Employer EIN046344921
Plan Effective Date1973-09-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Trustees of Massachusetts Service Employees' Pension Plan)

Sponsor-wide plan assets over time

All Trustees of Massachusetts Service Employees' Pension Plan plans reported in each filing year

Latest sponsor-wide plan assets
$300M 20.973062977927263% vs 2022
2024 filing year
$240M$260M$280M$300M$320M 202220232024 $248M $300M ▲ +21.0%
Year Plans Participants Total Assets
2022 1 12,521 $248M
2023 1 12,718 $276M
2024 1 12,813 $300M

Nearby Defined Benefit (Pension) Plans in Massachusetts

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

Massachusetts Service Employees Pension Plan vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. 020000400006000080000 -5051015 Total assets ($B) Participants Massachusetts Service Employees Pension Plan, Total assets ($B): 0.276075524 · Participants: 12718Massachusetts Service Employees Pension PlanConsolidated Cash Balance Program of Mass General Brigham and Member Organizations, Total assets ($B): 10.325856564 · Participants: 58745Consolidated Cash Balance Program of Mass General Brigham and Member OrganizationsNew England Teamsters Pension Fund, Total assets ($B): 9.092299586 · Participants: 21786New England Teamsters Pension FundLiberty Mutual Retirement Benefit Plan, Total assets ($B): 6.892259637 · Participants: 37145Liberty Mutual Retirement Benefit PlanMassachusetts Institute of Technology Basic Retirement Plan, Total assets ($B): 5.381626447 · Participants: 11888Massachusetts Institute of Technology Basic Retirement PlanN. Atlantic States Carp. Pension Fund, Total assets ($B): 4.973349354 · Participants: 17166N. Atlantic States Carp. Pension Fund
Massachusetts Service Employees Pension Plan vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants
Compare Massachusetts Service Employees Pension Plan side-by-side with 3 peers →

Scale composition for Massachusetts Service Employees Pension Plan

Massachusetts Service Employees Pension Plan reports $276M in end-of-year assets across 12,718 participants (0.002% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.014% of 93,925,755 covered participants) - about $21,707 per participant (16% of the national average assets-per-participant) . Net income for plan year 2023 was $28M.

This plan identity (EIN 046344921, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $248M to $300M (+21.0%) while covered participants moved from 12,521 to 12,813 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 12,521 $248M Open filing
2023 12,718 $276M This page
2024 · index core 12,813 $300M Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Massachusetts Service Employees Pension Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Massachusetts, the nearest Defined Benefit (Pension) by assets is I.B.E.W. Local 456 Pension Plan in NJ ($276M); by covered participants it is Principal Cash Balance Plan in IA (12,492 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($276M here).

Similar participant headcount

Nearest other-state filings by covered participants (12,718 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 Massachusetts Service Employees Pension Plan assets move in 2023? ▼
Massachusetts Service Employees Pension Plan grew at a solid clip - up 11.3% during 2023, from $248M to $276M. Reported net income was $28M.
How have Trustees of Massachusetts Service Employees' Pension Plan plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Trustees of Massachusetts Service Employees' Pension Plan's sponsor-wide assets grew 21.0%, from $248M to $300M.
Where does Massachusetts Service Employees Pension Plan rank by assets among Form 5500 filers? ▼
Massachusetts Service Employees Pension Plan ranks in the 96th 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 Defined Benefit (Pension) plans are similar in size to Massachusetts Service Employees Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is I.B.E.W. Local 456 Pension Plan in NJ ($276M, 766 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Massachusetts Service Employees Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Principal Cash Balance Plan in IA (12,492 participants, $1.7B 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 046344921.

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.