Defined Benefit (Pension) · DOL Form 5500 · 2022

Pipe & Refrigeration Fitters Local 537 Pension Plan

Data updated 2026-08-25

$828M
Total assets Above avg plan size
2,107
Participants Near avg headcount
99th
Percentile by assets National rank
$393,113
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Pipefitters Union Local No. 537 Pension Fund · Sponsored by Pipe & Refrigeration Fitters Local 537 · Massachusetts · Construction

$828M in assets, 2,107 participants

Pipe & Refrigeration Fitters Local 537's Pipefitters Union Local No. 537 Pension Fund reported $828M in total assets and 2,107 participants in its 2022 DOL Form 5500 filing, ranking in the 99th 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.

  • #9,795 in Construction (9,927 peers)

Coverage in Massachusetts

Pipefitters Union Local No. 537 Pension Fund covers 2,107 participants in Massachusetts, 3.2x the typical Massachusetts plan (state average ~659 per filing). Assets: $828M.

#9,795
in Construction (9,927 peers)
-2.4%
assets change YoY
8.3×
vs typical plan assets (national mean)

The plan reported a net loss of $29M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Pipefitters Union Local No. 537 Pension Fund's outsized position by total assets

Pipefitters Union Local No. 537 Pension Fund vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$828,289,965 Top 1% higher than 99% of 139,123 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 2022

Pipefitters Union Local No. 537 Pension Fund's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Pipefitters Union Local No. 537 Pension Fund lands in the large band (2,107 participants).

Published 5500 schedule card

Filing strip 516030859 · Pipe & Refrigeration Fitters Local 537 PY 2022 · Defined Benefit (Pension)

Pipefitters Union Local No. 537 Pension Fund · $828M · 2,107 · 99th

  • ASSETS $828M
  • PCT 2,107
  • EIN 99th
  • RANK Defined Benefit (Pension)
  • PHOTO near Washington Gas Light Company Employees' Pension Plan
  • IND ind #9795

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 Construction retirement plans → · Plans in Massachusetts →

Pipefitters Union Local No. 537 Pension Fund in the asset neighbourhood

Astrazeneca Defined Benefit Pension PlanAstrazeneca Defined Benefit …$833MLocal No. 731, I.B. of T., Pension FundLocal No. 731, I.B. of T., P…$830MPension Plan of L'oreal USA, Inc.Pension Plan of L'oreal USA,…$829MPipefitters Union Local No. 537 Pension FundPipefitters Union Local No. …$828MWashington Gas Light Company Employees' Pension PlanWashington Gas Light Company…$828M
End-of-year total assets ($M) among Pipefitters Union Local No. 537 Pension Fund and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2022.

Massachusetts filing particulars

Total Assets (Beginning of Year)$848M
Net Assets (End of Year)$794M
Net Income-$29M
Employer EIN516030859
Plan Effective Date1956-03-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Pipe & Refrigeration Fitters Local 537)

Sponsor-wide plan assets over time

All Pipe & Refrigeration Fitters Local 537 plans reported in each filing year

Latest sponsor-wide plan assets
$962M 16.188723957316085% vs 2022
2024 filing year
$800M$850M$900M$950M$1,000M 202220232024 $828M $962M ▲ +16.2%
Year Plans Participants Total Assets
2022 1 2,107 $828M
2023 1 2,202 $902M
2024 1 2,310 $962M

Nearby Defined Benefit (Pension) Plans in Massachusetts

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

Pipefitters Union Local No. 537 Pension Fund vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 0246810 Total assets ($B) Participants Pipefitters Union Local No. 537 Pension Fund, Total assets ($B): 0.828289965 · Participants: 2107Pipefitters Union Local No. 537 Pension FundConsolidated Cash Balance Program of Mass General Brigham and Member Organizations, Total assets ($B): 9.07532048 · Participants: 55495Consolidated Cash Balance Program of Mass General Brigham and Member OrganizationsLiberty Mutual Retirement Benefit Plan, Total assets ($B): 6.756596242 · Participants: 33087Liberty Mutual Retirement Benefit PlanMassachusetts Institute of Technology Basic Retirement Plan, Total assets ($B): 5.281152611 · Participants: 11835Massachusetts Institute of Technology Basic Retirement PlanN. Atlantic States Carp. Pension Fund, Total assets ($B): 4.758508912 · Participants: 17323N. Atlantic States Carp. Pension FundN. Atlantic States Carp. Guaranteed Annuity Fund, Total assets ($B): 3.594095954 · Participants: 10962N. Atlantic States Carp. Guaranteed Annuity Fund
Pipefitters Union Local No. 537 Pension Fund vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants
Compare Pipefitters Union Local No. 537 Pension Fund side-by-side with 3 peers →

Pipefitters Union Local No. 537 Pension Fund's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Massachusetts, the nearest Defined Benefit (Pension) by assets is Washington Gas Light Company Employees' Pension Plan in DC ($828M); by covered participants it is The Goodyear Tire & Rubber Company Salaried Pension Plan in OH (2,107 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($828M here).

Similar participant headcount

Nearest other-state filings by covered participants (2,107 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Pipefitters Union Local No. 537 Pension Fund assets move in 2022? ▼
Pipefitters Union Local No. 537 Pension Fund edged down modestly - down 2.4% during 2022, from $848M to $828M. Reported net income was -$29M.
How have Pipe & Refrigeration Fitters Local 537 plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Pipe & Refrigeration Fitters Local 537's sponsor-wide assets grew 16.2%, from $828M to $962M.
Where does Pipefitters Union Local No. 537 Pension Fund rank by assets among Form 5500 filers? ▼
Pipefitters Union Local No. 537 Pension Fund ranks in the 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
Which Defined Benefit (Pension) plans are similar in size to Pipefitters Union Local No. 537 Pension Fund? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Washington Gas Light Company Employees' Pension Plan in DC ($828M, 598 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Pipefitters Union Local No. 537 Pension Fund? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is The Goodyear Tire & Rubber Company Salaried Pension Plan in OH (2,107 participants, $785M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 516030859.

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.