Mayville Engineering Company, Inc. (NYSE:MEC) is held by 120 institutional investors per 13F filings through December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| Allspring Global Investments Holdings, LLC | 31 Mar, 2026 | 2,000,350 | -52,263 | -2.55% | $35,846,272.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 926,216 | 49,041 | 5.59% | $16,624,513.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 881,854 | 16,235 | 1.88% | $15,829,285.00 |
| Portolan Capital Management, LLC | 31 Mar, 2026 | 821,136 | 308,374 | 60.14% | $14,739,391.00 |
| First Eagle Investment Management, LLC | 31 Mar, 2026 | 808,150 | 450,075 | 125.69% | $14,506,292.00 |
| ROYCE & ASSOCIATES LP | 31 Mar, 2026 | 751,001 | 126,694 | 20.29% | $13,480,468.00 |
| EVR Research LP | 31 Mar, 2026 | 620,000 | 15,000 | 2.48% | $11,129,000.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 594,938 | 594,938 | 0.00% | $10,679,137.00 |
| BLAIR WILLIAM & CO/IL | 31 Mar, 2026 | 565,300 | -18,459 | -3.16% | $10,147,135.00 |
| Granahan Investment Management, LLC | 31 Mar, 2026 | 387,470 | 119,708 | 44.71% | $6,955,087.00 |
| MILLENNIUM MANAGEMENT LLC | 31 Mar, 2026 | 380,972 | 227,772 | 148.68% | $6,838,447.00 |
| Ameriprise Financial Inc | 31 Mar, 2026 | 351,790 | 946 | 0.27% | $6,314,631.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 335,835 | 6,914 | 2.10% | $6,029,901.00 |
| State Street Corp | 31 Mar, 2026 | 285,850 | 850 | 0.30% | $5,131,008.00 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 31 Mar, 2026 | 269,681 | 89,740 | 49.87% | $4,840,774.00 |
| JB CAPITAL PARTNERS LP | 31 Mar, 2026 | 250,512 | 0 | 0.00% | $4,496,690.00 |
| Congruence Capital, LLC | 31 Mar, 2026 | 234,475 | 26,373 | 12.67% | $4,208,827.00 |
| Boston Partners | 31 Mar, 2026 | 232,637 | 9,907 | 4.45% | $4,175,830.00 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 222,703 | -4,223 | -1.86% | $3,997,519.00 |
| AMERICAN CENTURY COMPANIES INC | 31 Mar, 2026 | 221,673 | -59,167 | -21.07% | $3,979,030.00 |