Defined Benefit (Pension) · DOL Form 5500 · 2023

Pipe & Refrigeration Fitters Local 537 Pension Plan

Data updated 2026-08-06

$902M
Total assets: 2,202
Participants: 98th
Percentile by assets: $409,508
Avg per participant

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

$902M in assets, 2,202 participants

Pipe & Refrigeration Fitters Local 537's Pipefitters Union Local No. 537 Pension Fund reported $902M in total assets and 2,202 participants in its 2023 DOL Form 5500 filing, ranking in the 98th 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.

98th percentile by assets (of 126,618 plans)
#8,858 in Construction (8,993 peers)

Coverage in Massachusetts

Pipefitters Union Local No. 537 Pension Fund covers 2,202 participants in Massachusetts, 3.4x the typical Massachusetts plan (state average ~641 per filing). Assets: $902M.

$902M
total plan assets (2023 EOY): 2,202
covered participants: 98th
percentile by assets (of 126,618 plans): $409,508
avg assets per participant

Pipefitters Union Local No. 537 Pension Fund reported net income rose from -$29M in the plan year 2022 filing to $82M in the plan year 2023 filing.
Pipefitters Union Local No. 537 Pension Fund end-of-year assets rose from $828M in the plan year 2022 filing to $902M in the plan year 2023 filing.
Pipefitters Union Local No. 537 Pension Fund reported participants rose from 2,107 in the plan year 2022 filing to 2,202 in the plan year 2023 filing.

See the national 2023→2024 release diff →

State

Massachusetts

Industry

Construction

Participants vs Massachusetts filers

In Massachusetts, the average filing covers about 641 participants across 3,941 plans. Pipefitters Union Local No. 537 Pension Fund reports 2,202 participants - 3.4x that state average ($902M EOY assets).

Massachusetts filing particulars

Total Assets (Beginning of Year)	$828M
Net Assets (End of Year)	$875M
Net Income	$82M
Employer EIN	516030859
Plan Effective Date	1956-03-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Pipe & Refrigeration Fitters Local 537)

Total plan assets by year, all Pipe & Refrigeration Fitters Local 537 plans on file

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

Consolidated Cash Balance Program of Mass General Brigham and Member Organizations $10.3B · 58,745
New England Teamsters Pension Fund $9.1B · 21,786
Liberty Mutual Retirement Benefit Plan $6.9B · 37,145
Massachusetts Institute of Technology Basic Retirement Plan $5.4B · 11,888
N. Atlantic States Carp. Pension Fund $5.0B · 17,166

Compare Pipefitters Union Local No. 537 Pension … side-by-side with 3 peers →

Similar-Sized Defined Benefit (Pension) Plans Nationally

Defined Benefit (Pension) plans in other states closest to Pipefitters Union Local No. 537 Pension Fund by total assets, not by location.

Entergy Corporation Retirement Plan for Bargaining Employees (LA) $903M · 2,424
U.a. Local No. 393 Defined Benefit Pension Plan (CA) $899M · 1,988
Goldman Sachs Employees' Pension Plan (NY) $905M · 1,387
International Association of Machinists and Aerospace Workers Pension Plan (MD) $896M · 660

Frequently Asked Questions

How did Pipefitters Union Local No. 537 Pension Fund assets move in 2023? ▼

Pipefitters Union Local No. 537 Pension Fund grew at a solid clip - up 8.9% during 2023, from $828M to $902M. Reported net income was $82M.

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 98th percentile by end-of-year assets among 126,618 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 Pipefitters Union Local No. 537 Pension Fund? ▼

Among Defined Benefit (Pension) plans in other states, the closest by assets is Entergy Corporation Retirement Plan for Bargaining Employees in LA ($903M, 2,424 participants).

Next read for Pipefitters Union Local No. 537 Pension …

Filing takeaways

Ways to act on Pipefitters Union Local No. 537 Pension Fund's numbers.

By total assets, Pipefitters Union Local No. 537 Pension Fund ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar Defined Benefit (Pension) plans in Massachusetts. Compare plans
Pipe & Refrigeration Fitters Local 537's sponsor-wide assets have grown 16.2% since 2022 across 3 plan years on file. More Construction plans

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 516030859.