Defined Benefit (Pension) · DOL Form 5500 · 2024

Board of Trustees of the I.a.M. National Pension Fund Pension Plan

Data updated 2026-07-24

$15.0B
Total assets: 102,493
Participants: 100th
Percentile by assets: $146,481
Avg per participant

Official DOL plan name: Iam National Pension Fund · Sponsored by Board of Trustees of the I.a.M. National Pension Fund · District of Columbia · Manufacturing

$15.0B in assets, 102,493 participants

Board of Trustees of the I.a.M. National Pension Fund's Iam National Pension Fund reported $15.0B in total assets and 102,493 participants in its 2024 DOL Form 5500 filing, ranking in the 100th 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.

100th percentile by assets (of 116,472 plans)

Coverage in District of Columbia

Iam National Pension Fund covers 102,493 participants in District of Columbia, 67x the typical District of Columbia plan (state average ~1,541 per filing). Assets: $15.0B.

$15.0B
total plan assets (2024 EOY): 102,493
covered participants: 100th
percentile by assets (of 116,472 plans): $146,481
avg assets per participant

Iam National Pension Fund reported net income rose from $388M in the plan year 2023 filing to $799M in the plan year 2024 filing.
Iam National Pension Fund reported participants rose from 92,151 in the plan year 2023 filing to 102,493 in the plan year 2024 filing.
Iam National Pension Fund end-of-year assets rose from $14.3B in the plan year 2023 filing to $15.0B in the plan year 2024 filing.

See the national 2023→2024 release diff →

State

District of Columbia

Industry

Manufacturing

Participants vs District of Columbia filers

In District of Columbia, the average filing covers about 1,541 participants across 821 plans. Iam National Pension Fund reports 102,493 participants - 67x that state average ($15.0B EOY assets).

District of Columbia filing particulars

Total Assets (Beginning of Year)	$14.3B
Net Assets (End of Year)	$14.7B
Net Income	$799M
Employer EIN	516031295
Plan Effective Date	1991-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Board of Trustees of the I.a.M. National Pension Fund)

Total plan assets by year, all Board of Trustees of the I.a.M. National Pension Fund plans on file

Year	Plans	Participants	Total Assets
2022	1	94,512	$13.8B
2023	1	92,151	$14.3B
2024	1	102,493	$15.0B

Nearby Defined Benefit (Pension) Plans in District of Columbia

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

Iam National Pension Fund vs. nearby Defined Benefit (Pension) plans in District of Columbia, assets vs. participants

Central Pension Fund of the Iuoe & Participating Employers $27.4B · 103,525
Liuna Staff and Affiliates Pension Fund $1.9B · 3,559
Bricklayers & Trowel Trades International Pension Fund $1.9B · 27,474
Danaher Corporation & Subsidiaries Pension Plan $1.9B · 2,599
Teamsters Local 639 - Employers Pension Trust Fund $1.7B · 4,123

Compare Iam National Pension Fund side-by-side with 3 peers →

Similar-Sized Defined Benefit (Pension) Plans Nationally

Defined Benefit (Pension) plans in other states closest to Iam National Pension Fund by total assets, not by location.

The Southern Company Pension Plan (GA) $15.3B · 25,843
Truist Financial Corporation Pension Plan (NC) $14.7B · 38,548
The Boeing Company Employee Retirement Plan (WA) $15.4B · 31,398
Consolidated Edison Retirement Plan (NY) $15.6B · 10,608

Frequently Asked Questions

How did Iam National Pension Fund assets move in 2024? ▼

Iam National Pension Fund edged up modestly - up 5.0% during 2024, from $14.3B to $15.0B. Reported net income was $799M.

How have Board of Trustees of the I.a.M. National Pension Fund plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Board of Trustees of the I.a.M. National Pension Fund's sponsor-wide assets grew 8.8%, from $13.8B to $15.0B.

Where does Iam National Pension Fund rank by assets among Form 5500 filers? ▼

Iam National Pension Fund ranks in the 100th percentile by end-of-year assets among 116,472 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).

Which Defined Benefit (Pension) plans are similar in size to Iam National Pension Fund? ▼

Among Defined Benefit (Pension) plans in other states, the closest by assets is The Southern Company Pension Plan in GA ($15.3B, 25,843 participants).

Next read for Iam National Pension Fund

Filing takeaways

Ways to act on Iam National Pension Fund's numbers.

By total assets, Iam National Pension Fund ranks among the largest 1% of all filed plans. See the largest plans
Compare it side-by-side against 3 similar Defined Benefit (Pension) plans in District of Columbia. Compare plans
Board of Trustees of the I.a.M. National Pension Fund's sponsor-wide assets have grown 8.8% since 2022 across 3 plan years on file. More Manufacturing plans

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 516031295.

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.