Mayville Engineering Company, Inc. (MEC) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for MEC. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 150 institutions reported holding MEC, with 21.2 million shares worth $790.6 million in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Portolan Capital Management | 1,299,256 | $49M | INCREASED |
| FMR | 1,280,170 | $48M | INCREASED |
| BlackRock | 1,183,443 | $44M | INCREASED |
| Allspring Global Investments Holdings | 1,072,916 | $38M | DECREASED |
| Vanguard | 948,711 | $36M | INCREASED |
Full institutional holdings, insider history, and congressional trades for Mayville Engineering Company, Inc. on SentiSense.