Mayville Engineering Company, Inc. · NYSE:MEC
Mayville Engineering Company, Inc. shareholders
As of Jun 30, 2026, 150 institutions reported holding Mayville Engineering Company, Inc., 84.5% of its shares. Largest: Portolan Capital Management, LLC, Fidelity and BlackRock. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Mayville Engineering Company, Inc. | Change | Filed |
|---|---|---|---|---|
| Portolan Capital Management, LLC | 1.3M | 5.1% | +478K | Aug 14, 2026 |
| Fidelity | 1.28M | 5.0% | +1.28M | Aug 13, 2026 |
| BlackRock | 1.18M | 4.6% | +302K | Aug 7, 2026 |
| Allspring Global Investments Holdings, LLC | 1.07M | 4.2% | −927K | Aug 13, 2026 |
| Vanguard | 949K | 3.7% | +181K | Aug 13, 2026 |
| Driehaus Capital Management LLC | 846K | 3.3% | new | Aug 14, 2026 |
| Summit Partners Public Asset Management, LLC | 800K | 3.1% | new | Aug 14, 2026 |
| Dimensional | 782K | 3.1% | −144K | Aug 11, 2026 |
| Royce & Associates LP | 752K | 2.9% | +1,082 | Aug 14, 2026 |
| First Eagle Investment Management, LLC | 739K | 2.9% | +335K | Aug 24, 2026 |