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Original filing (PDF)20250929122744NAL0026737746001
C3 CORPORATION
Form 5500
FILING_RECEIVED
C3 401(K) PROFIT SHARING PLAN
401(k) retirement plan
Active participants
66
Accounts w/ balance
96
Plan assets (EOY)
$9.3M
Net assets (EOY)
$9.3M
How this plan invests
This plan
27 securities
funds · stocks · CUSIPs
Holdings are itemized directly on this plan's Schedule of Assets, below.
Plan health score (directional)
95
/ 100
Grade A
Top-tier plan health
Directional indicator computed from public Form 5500 data — compliance, concentration, cost, vendor stack and participation. Not a fiduciary tool.
Compliance & disclosures
100
Concentration risk
100
Total plan cost
80
Vendor stack
100
Participation health
100
Knocking points off
- 67 bps in Schedule C fees — modestly above peer band of 52 bps.
Decision-maker contacts
CFO / Head of HR / Benefits Manager — verified email + LinkedIn for C3 CORPORATION.
Plan sponsor
Name
C3 CORPORATION
EIN
39-1781464
Address
3120 N. MARSHALL ROAD · APPLETON, WI · 54911
Phone
(920) 749-9944
Industry
Engineering Services· Professional & Technical Servicessee all
Plan administrator
Same as plan sponsor.
Plan characteristics
Plan number
001
Plan year
2024
Plan year begin
2024-01-01
Tax period
2024-12-31
Filed
2025-09-29
Pension benefit codes
3D · Pre-approved plan (master / prototype / VS)
2E · Profit-sharing
2G · Total participant-directed accounts
2J · 401(k) feature
2F · ERISA section 404(c)
2S · Automatic enrollment
2T · Default investment account (QDIA)
Audit & trust (Schedule H)
Auditor
HAWKINS ASH CPAS LLP
Trustee / custodian
—
Trustee phone
—
Service providers (Schedule C)
2 rowsAdvisor / Consultant
1| Name | EIN | Location | Relation | Direct comp | Indirect comp |
|---|---|---|---|---|---|
| MORGAN STANLEY WEALTH MANAGEMENT | — | NEW YORK CITY, NY | INVESTMENT ADVISOR | $35K | — |
TPA / Administrator
1| Name | EIN | Location | Relation | Direct comp | Indirect comp |
|---|---|---|---|---|---|
| WIPFLI LLP | 39-0758449 | — | TPA | $28K | — |
Investments
27 direct securities· $9.1M(98% of reported assets)
| PI | Investment | Type | Shares / units | Cost | Current value | % of plan |
|---|---|---|---|---|---|---|
| American Funds 2050 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $1.4M | 15.5% | |
| Vanguard 500 Index Fund Admiral Shares Mutual Fund N/A | — | — | — | $1.0M | 11.3% | |
| American Funds 2060 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $931K | 10.0% | |
| Harbor Capital Appreciation Fund Retirement Class Mutual Fund N/A | — | — | — | $700K | 7.5% | |
| American Funds 2055 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $667K | 7.2% | |
| Vanguard Mid-Cap Index Fund Admiral Shares Mutual Fund N/A | — | — | — | $538K | 5.8% | |
| American Funds 2045 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $517K | 5.6% | |
| MFS Value Fund Class R6 Mutual Fund N/A | — | — | — | $414K | 4.5% | |
| American Funds 2025 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $392K | 4.2% | |
| Oakmark International Fund Class Institutional Mutual Fund N/A | — | — | — | $312K | 3.4% | |
| American Funds 2040 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $311K | 3.4% | |
| Metropolitan West Total Return Bond Fund Plan Class Mutual Fund N/A | — | — | — | $269K | 2.9% | |
| Vanguard Total Bond Market Index Fund Admiral Shares Mutual Fund N/A | — | — | — | $198K | 2.1% | |
| American Funds EuroPacific Growth Fund Class R-6 Mutual Fund N/A | — | — | — | $180K | 1.9% | |
| American Funds 2065 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $162K | 1.7% | |
| American Funds American Balanced Fund Class R-6 Mutual Fund N/A | — | — | — | $160K | 1.7% | |
| Vanguard Small-Cap Index Fund Admiral Shares Mutual Fund N/A | — | — | — | $133K | 1.4% | |
| Macquarie Small Cap Value Fund Class R6 Mutual Fund N/A | — | — | — | $114K | 1.2% | |
| American Funds 2030 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $106K | 1.1% | |
| Vanguard Total International Stock Index Fund Admiral Shares Mutual Fund N/A | — | — | — | $99K | 1.1% | |
| Invesco Developing Markets Fund Class R6 Mutual Fund N/A | — | — | — | $96K | 1.0% | |
| Nationwide Geneva Small Cap Growth Fund R6 Mutual Fund N/A | — | — | — | $94K | 1.0% | |
| Notes Receivable From Participants Interest rates range of 6.50% to 9.50% - | — | — | — | $88K | 0.9% | |
| Vanguard Treasury Money Market Fund Investor Shares Mutual Fund N/A | — | — | — | $74K | 0.8% | |
| DFA Global Real Estate Securities Portfolio Mutual Fund N/A | — | — | — | $53K | 0.6% | |
| American Funds 2035 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $25K | 0.3% | |
| American Funds 2015 Target Date Retirement Fund Class R-6 Mutual Fund N/A | — | — | — | $8K | <0.1% |
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