401(k) · DOL Form 5500 · 2023

Spectrum Health System 403(b) Plan

Data updated 2026-05-15

$2.8B
Total assets
31,443
Participants
100th
Percentile by assets
$89,840
Avg per participant

Sponsored by Corewell Health · Michigan · Healthcare & Social Assistance

What the 2023 filing shows

Spectrum Health System 403(b) Plan holds $2.8B for 31,443 participants - about $89,840 per participant, among the largest 1% of all filed plans, up 20.5% over the 2023 plan year.

$2.8B
total plan assets (2023 EOY)
31,443
covered participants
100th
percentile by assets (of 126,618 plans)
$89,840
avg assets per participant
State
Industry
Healthcare & Social Assistance

401(k) · DOL Form 5500 · 2023

What the Filing Says About Spectrum Health System 403(b) Plan

Spectrum Health System 403(b) Plan is a 401(k) retirement plan sponsored by Corewell Health, headquartered in Michigan. According to the U.S. Department of Labor's 2023 Form 5500 filing, the plan reports $2.8B in total end-of-year assets and covers 31,443 participants across the Healthcare & Social Assistance industry. The sponsor's EIN on file with the U.S. Department of Labor is 383382353, and the plan has been effective since 1999-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets grew sharply from $2.3B at the beginning of 2023 to $2.8B at year-end - up 20.5%. Net assets (after liabilities) closed the year at $2.8B, with reported net income of $480M 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.

Across the 3 plan years Corewell Health has on file with PlainRetire (2022-2024), sponsor-wide plan assets have moved from $2.6B to $3.4B, a gain of 33.3%, while reported participants moved from 29,209 to 35,007 (+19.9%). The strongest year on file by total sponsor assets was 2024 at $3.4B; the softest was 2022 at $2.6B. Year-by-year, sponsor-wide filings show: 2022 - $2.6B in assets across 2 plans covering 29,209 participants; 2023 - $3.1B in assets across 2 plans covering 33,805 participants; 2024 - $3.4B in assets across 2 plans covering 35,007 participants.

By assets, Spectrum Health System 403(b) Plan outranks nearly all the 126,618 plans that filed a Form 5500 for the 2023 plan year, and holds roughly 28x the national average plan size of $100M and 730 average participants.

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.

How the percentile is calculated: we count every plan that filed a 2023 Form 5500 with a reported end-of-year asset figure (126,618 plans), rank Spectrum Health System 403(b) Plan against all of them by total assets, and report the share of those plans it outranks. A plan reporting no asset figure for the year is excluded from the ranking rather than assumed to be zero.

Financial Summary (2023)

Total Assets (Beginning of Year)$2.3B
Total Assets (End of Year)$2.8B
Net Assets (End of Year)$2.8B
Net Income$480M
Plan Type401(k)
Employer EIN383382353
Plan Effective Date1999-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Corewell Health)

Year Plans Participants Total Assets
2022 2 29,209 $2.6B
2023 2 33,805 $3.1B
2024 2 35,007 $3.4B

Nearby 401(k) Plans in Michigan

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

Frequently Asked Questions

How much money is in the Spectrum Health System 403(b) Plan?
As of the 2023 Form 5500 filing, Spectrum Health System 403(b) Plan holds $2.8B in total assets with 31,443 participants. It is sponsored by Corewell Health.
What type of plan is Spectrum Health System 403(b) Plan?
Spectrum Health System 403(b) Plan is a 401(k) plan. It has been effective since 1999-01-01. The plan is filed with the U.S. Department of Labor under EIN 383382353.
Who sponsors the Spectrum Health System 403(b) Plan?
Spectrum Health System 403(b) Plan is sponsored by Corewell Health, located in Michigan. The sponsor's EIN is 383382353 and the plan operates in the Healthcare & Social Assistance industry.
How did Spectrum Health System 403(b) Plan perform in 2023?
Spectrum Health System 403(b) Plan grew sharply - up 20.5% during 2023, moving from $2.3B to $2.8B in total assets. Net income was $480M.

What this filing means

Ways to act on Spectrum Health System 403(b) Plan's numbers.

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 383382353.

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.

Every figure on PlainRetire is rendered directly from the Department of Labor's Form 5500 annual return filings, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-15.