3 institutions reported holding $288,180 of MAYVILLE ENGR CO INC (MEC) in SEC 13F filings for 2026-06-30. Largest institutional holders: Avior Wealth Management, LLC ($281,662), GAMMA Investing LLC ($6,518), Gradient Investments LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Avior Wealth Management, LLC | $281,662 | 7,519 | Trimmed |
| 2 | GAMMA Investing LLC | $6,518 | 174 | Hold |
| 3 | Gradient Investments LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30