Arizona › Manufacturing › 100 to 249 participants
Form 5500 statement · plan year 1 Jan 2025 to 31 Dec 2025
Solon Corporation 401(k) Plan
Sponsored by Solon Corporation, Tucson, AZ
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances. Form 5500 contains no individual account balances. Look up the original filing at EFAST2.
Solon Corporation of Tucson, Arizona sponsors Solon Corporation 401(k) Plan, a 401(k) plan. Its Form 5500 for the plan year ending 31 Dec 2025 shows 114 participants (100 active).
No Schedule H financial statement is attached to this filing, so asset, contribution and fee figures are not available for the year.
Compared with similar plans
| Measure | This plan | Same size | Same industry | All US DC plans |
|---|---|---|---|---|
| Net assets per participant | — | $60,207 | $62,283 | $53,089 |
| Employer contributions per active participant | — | $2,447 | $2,187 | $2,174 |
| Schedule C compensation per participant | — | $194 | $136 | $123 |
| Schedule C compensation, share of net assets | — | 0.32% | 0.24% | 0.26% |
| Administrative expenses per participant | — | $176 | $131 | $116 |
Peer columns are medians for plan year 2024 across defined contribution plans with 100 or more participants: 100 to 249 participants (22,054 plans), manufacturing (11,411) and all US plans (63,607). Fee medians cover plans that report an amount.
Fees and service providers
No service provider organisations are listed on Schedule C for this plan year.
Schedule C, Part I line 2: providers that received $5,000 or more, with the form's own service codes. Individuals named on Schedule C (plan employees, individual trustees) are never shown and their compensation is excluded. Eligible indirect compensation disclosed by formula carries no dollar amount. See how to read Schedule C fees.
Audit and compliance answers, as filed
- Accountant's opinionNot stated
- Audit scope limited under ERISA section 103(a)(3)(C)—
- Participant contributions reported as transmitted late—
- Covered by a fidelity bond—
- Blackout period during the year—
These are the plan administrator's own answers on Schedule H, Part IV. A reported late transmittal is the filer's disclosure of a timing lapse, usually corrected through the Department of Labor's voluntary program; the amount is the total involved, not a loss.
Plan characteristics
2EProfit-sharing plan2FERISA section 404(c) plan2GTotal participant-directed account plan2JCode section 401(k) feature2KCode section 401(m) arrangement2TTotal or partial participant-directed account plan with a default investment account3DPre-approved pension plan2AAge/service weighted or new comparability or similar plan
Codes entered on Form 5500 line 8a, with the labels from the official instructions. Business code 334410: Semiconductor & Other Electronic Component Mfg.
Similar plans in Arizona
| Plan | Sponsor | Participants | Net assets | Per participant |
|---|---|---|---|---|
| Pilgrim Screw Corporation Employee Savings Plan | Pilgrim Screw Corp. | 116 | — | — |
| American Ad Bag Profit Sharing 401(k) Plan and Trust | American Ad Bag | 110 | $13.7M | $124,191 |
| Onsemi Union Savings and Retirement Plan | Semiconductor Components Industries, LLC | 120 | $12.2M | $101,295 |
| Valley Forge & Bolt Mfg. 401(k) Retirement Plan | Valley Forge & Bolt Mfg. Co. | 109 | $10.1M | $93,114 |
| Agm Container Controls, Inc. Employee Stock Ownership Plan | Agm Container Controls, Inc. | 131 | $21.2M | $162,151 |
| Competitive Engineering, Inc. 401(k) Profit Sharing Plan | Competitive Engineering, Inc. | 103 | — | — |
Defined contribution plans in manufacturing closest in size.
Questions and answers
How big is Solon Corporation 401(k) Plan?
114 participants at the end of the plan year ending 31 Dec 2025, of whom 100 were active employees. Among defined contribution plans that places it in the 100 to 249 participants band, which held 22,054 plans in plan year 2024.
What does Solon Corporation contribute per participant?
This filing has no Schedule H financial statement, so employer contributions are not reported here.
What fees does the plan pay and how do they compare?
No financial schedules are attached to this filing.
Who runs the plan?
The sponsor is Solon Corporation. Form 5500 also names the plan administrator's signer and other individuals; this site publishes organisations only.
Was the audit opinion unqualified?
The filing does not state an accountant's opinion type.
How current is this, and does it show my balance?
This is the Form 5500 for the plan year 1 Jan 2025 to 31 Dec 2025, received by the Department of Labor on 24 Sep 2026. Filings are due seven months after the plan year ends, or nine and a half with an extension, so the public record always runs a year or more behind. It contains plan-level totals only: no individual balances, contributions or names of participants exist in the data.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files (Form 5500, Schedule H, Schedule C) for plan years 2009 to 2025, public domain, with filings received through 24 Sep 2026. This page shows the latest filing on record for EIN 20-8262859, plan 001, received 24 Sep 2026; an amended filing replaces it at the next build. Medians and percentiles are computed by this site; see the methodology. Report an error through corrections.