Mayville Engineering Co Inc (MEC)
Who owns Mayville Engineering Co Inc (MEC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 62.4% of the shares are freely tradable; institutional investors hold 60.8%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Allspring Global Investments Holdings, LLC | 7.85 | 2,000,350 | -2.5 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.63 | 926,216 | +5.6 | 03/31/2026 |
| BlackRock Inc | 3.46 | 881,854 | +1.9 | 03/31/2026 |
| Portolan Capital Management, LLC | 3.22 | 821,136 | +60.1 | 03/31/2026 |
| Royce & Associates, LP | 2.95 | 751,001 | +20.3 | 03/31/2026 |
| Vanguard Group Inc | 2.46 | 627,655 | -28.0 | 12/31/2025 |
| EVR Research LP | 2.43 | 620,000 | +2.5 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.33 | 594,938 | +0.0 | 03/31/2026 |
| Blair William & Co | 2.22 | 565,300 | -3.2 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Allspring Special Small Cap Value A | 5.09 | 1,298,498 | -2.5 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.