401(k)
2023 plan-year 401(k) DOL Form 5500

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan

ERISA Form 5500 plan record drawn from DOL EBSA — verify with linked source filings below.

Sponsored by Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) · Iowa · Construction

What the 2023 filing shows

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan holds $55M for 470 participants — about $117,289 per participant, up 21.4% over the 2023 plan year.

$55M
total plan assets (2023 EOY)
470
covered participants
$117,289
avg assets per participant
+21.4%
assets growth YoY
Total Assets (2023)
$55M
Participants
470
State
Industry
Construction

What the Filing Says About Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan

Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan is a 401(k) retirement plan sponsored by Central Iowa Sheet Metal Workers Supplemental Retirement 401(k), headquartered in Iowa. As of the 2023 Form 5500 filing, the plan reports $55M in total end-of-year assets and covers 470 participants across the Construction industry. The sponsor's EIN on file with the U.S. Department of Labor is 421401231, and the plan has been effective since 1993-04-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $45M at the beginning of 2023 to $55M at year-end — a gain of 21.4%. Net assets (after liabilities) closed the year at $55M, with reported net income of $10M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows — a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

Financial Summary (2023)

Total Assets (Beginning of Year)$45M
Total Assets (End of Year)$55M
Net Assets (End of Year)$55M
Net Income$10M
Plan Type401(k)
Employer EIN421401231
Plan Effective Date1993-04-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Central Iowa Sheet Metal Workers Supplemental Retirement 401(k))

Year Plans Participants Total Assets
2022 1 447 $45M
2023 1 470 $55M
2024 1 486 $62M

Nearby 401(k) Plans in Iowa

Peer 401(k) plans — same state, same plan type — ranked by total assets.

Frequently Asked Questions

How much money is in the Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan?
As of the 2023 Form 5500 filing, Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan holds $55M in total assets with 470 participants. It is sponsored by Central Iowa Sheet Metal Workers Supplemental Retirement 401(k).
What type of plan is Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan?
Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan is a 401(k) plan. It has been effective since 1993-04-01. The plan is filed with the U.S. Department of Labor under EIN 421401231.
Who sponsors the Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan?
Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan is sponsored by Central Iowa Sheet Metal Workers Supplemental Retirement 401(k), located in Iowa. The sponsor's EIN is 421401231 and the plan operates in the Construction industry.
How did Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan perform in 2023?
Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan grew by 21.4% during 2023, moving from $45M to $55M in total assets. Net income was $10M.
Where can I find official filings for Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan?
Official Form 5500 filings for Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan are available through the U.S. Department of Labor's EFAST2 system. Search by EIN 421401231 or plan name at efast.dol.gov.
How does Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan compare to other plans?
You can compare Central Iowa Sheet Metal Workers Supplemental Retirement 401(k) Plan against other 401(k) plans on the plan type page, or view plans in Iowa on the state page. PlainRetire tracks the 5,000 largest retirement plans in the U.S. by total assets.

Explore PlainRetire

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 421401231.

Reference: IRS Publication 560 — Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B — Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.