401(k) · DOL Form 5500 · 2024

Kosei St. Marys Corporation Associates' Retirement Plan

Data updated 2026-07-24

$34M
Total assets
227
Participants
79th
Percentile by assets
$147,712
Avg per participant

Sponsored by Kosei St. Marys Corporation · Ohio · Manufacturing

Kosei St. Marys Corporation's Kosei St. Marys Corporation Associates' Retirement Plan reported $34M in total assets and 227 participants in its 2024 DOL Form 5500 filing, ranking in the 79th 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.

What the 2024 filing shows

Kosei St. Marys Corporation Associates' Retirement Plan holds $34M for 227 participants - about $147,712 per participant, in the top quartile of all filed plans by assets, down 11.8% over the 2024 plan year.

$34M
total plan assets (2024 EOY)
227
covered participants
79th
percentile by assets (of 116,472 plans)
$147,712
avg assets per participant

The plan reported a net loss of $5M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

State
Industry
Manufacturing

401(k) · DOL Form 5500 · 2024

What the Filing Says About Kosei St. Marys Corporation Associates' Retirement Plan

Kosei St. Marys Corporation Associates' Retirement Plan is a 401(k) retirement plan sponsored by Kosei St. Marys Corporation, headquartered in Ohio. According to the U.S. Department of Labor's 2024 Form 5500 filing, the plan reports $34M in total end-of-year assets and covers 227 participants across the Manufacturing industry. The sponsor's EIN on file with the U.S. Department of Labor is 341564600, and the plan has been effective since 1990-04-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets pulled back noticeably from $38M at the beginning of 2024 to $34M at year-end - down 11.8%. Net assets (after liabilities) closed the year at $34M, with reported net income of -$5M 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 Kosei St. Marys Corporation has on file with PlainRetire (2022-2024), sponsor-wide plan assets have moved from $35M to $34M, a decline of 3.1%, while reported participants moved from 300 to 227 (-24.3%). The strongest year on file by total sponsor assets was 2023 at $38M; the softest was 2024 at $34M. Year-by-year, sponsor-wide filings show: 2022 - $35M in assets across 1 plan covering 300 participants; 2023 - $38M in assets across 1 plan covering 260 participants; 2024 - $34M in assets across 1 plan covering 227 participants.

By assets, Kosei St. Marys Corporation Associates' Retirement Plan outranks 79% of the 116,472 plans that filed a Form 5500 for the 2024 plan year, and holds roughly 0.3x 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 2024 Form 5500 with a reported end-of-year asset figure (116,472 plans), rank Kosei St. Marys Corporation Associates' Retirement 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 (2024)

Total Assets (Beginning of Year)$38M
Total Assets (End of Year)$34M
Net Assets (End of Year)$34M
Net Income-$5M
Plan Type401(k)
Employer EIN341564600
Plan Effective Date1990-04-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Kosei St. Marys Corporation)

$32M$34M$36M$38M$40M 202220232024 $34.6M $33.5M ▼ -3.1%
Total plan assets by year, all Kosei St. Marys Corporation 401(k) plans on file
Year Plans Participants Total Assets
2022 1 300 $35M
2023 1 260 $38M
2024 1 227 $34M

Nearby 401(k) Plans in Ohio

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

Kosei St. Marys Corporation Associates' Retirement Plan vs. nearby 401(k) plans in Ohio, assets vs. participants

Kosei St. Marys Corporation Associates' Retirement Plan vs. nearby 401(k) plans in Ohio, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -50510152025 Total assets ($B) Participants Kosei St. Marys Corp…Procter & Gamble Pro…GE Aerospace Retirem…The Kroger Co. 401(k…The Progressive 401(…Parker Retirement Sa…
Kosei St. Marys Corporation Associates' Retirement Plan vs. nearby 401(k) plans in Ohio, assets vs. participants

Frequently Asked Questions

How much money is in the Kosei St. Marys Corporation Associates' Retirement Plan?
As of the 2024 Form 5500 filing, Kosei St. Marys Corporation Associates' Retirement Plan holds $34M in total assets with 227 participants. It is sponsored by Kosei St. Marys Corporation.
What type of plan is Kosei St. Marys Corporation Associates' Retirement Plan?
Kosei St. Marys Corporation Associates' Retirement Plan is a 401(k) plan. It has been effective since 1990-04-01. The plan is filed with the U.S. Department of Labor under EIN 341564600.
Who sponsors the Kosei St. Marys Corporation Associates' Retirement Plan?
Kosei St. Marys Corporation Associates' Retirement Plan is sponsored by Kosei St. Marys Corporation, located in Ohio. The sponsor's EIN is 341564600 and the plan operates in the Manufacturing industry.
How did Kosei St. Marys Corporation Associates' Retirement Plan perform in 2024?
Kosei St. Marys Corporation Associates' Retirement Plan pulled back noticeably - down 11.8% during 2024, moving from $38M to $34M in total assets. Net income was -$5M.

What this filing means

Ways to act on Kosei St. Marys Corporation Associates' Retirement Plan's numbers.

  • By total assets, Kosei St. Marys Corporation Associates' Retirement Plan ranks in the top quartile of all filed plans by assets. See the largest plans
  • Compare it side-by-side against 3 similar 401(k) plans in Ohio. Compare plans
  • Kosei St. Marys Corporation's sponsor-wide assets have declined 3.1% since 2022 across 3 plan years on file. More Manufacturing plans
  • A 401(k) plan works differently from other retirement plan types, understand the structural differences before comparing. Compare plan types

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 341564600.

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 2026-07-24.