Mayville Engineering
MEC · NYSE
$13.89−$0.05 (−0.36%)TodayMarket closed ·
Prev close $13.94
Who owns MEC
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 47.9% of MEC’s shares.
- Mayville Engineering Co Inc 401(k) Plan8.5%
- Mayville Engineering Co Inc ESOP7.5%
- Portolan Capital Management, L.L.C.5.1%
- Fidelity Management & Research Company LLC4.8%
- Next 6 largest institutions21.9%
- All other shareholders52.1%
| Holder | Shares | % of shares |
|---|---|---|
| Mayville Engineering Co Inc 401(k) Plan | 2.17M | 8.53% |
| Mayville Engineering Co Inc ESOP | 1.90M | 7.49% |
| Portolan Capital Management, L.L.C. | 1.30M | 5.11% |
| Fidelity Management & Research Company LLC | 1.23M | 4.85% |
| BlackRock Institutional Trust Company, N.A. | 1.07M | 4.23% |
| Allspring Global Investments, LLC | 1.07M | 4.22% |
| Hilve Holdings Ltd | 995.76K | 3.92% |
| Driehaus Capital Management, LLC | 846.35K | 3.33% |
| Summit Partners Public Asset Management, LLC | 800.00K | 3.15% |
| Dimensional Fund Advisors, L.P. | 782.28K | 3.08% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Growth Strategies Fund | 1.32M | 5.18% |
| Strategic Advisers US Total Stock Fund | 746.47K | 2.94% |
| Allspring Special Small Cap Val Fd | 574.48K | 2.26% |
| Vanguard Total Stock Market Index Fund | 556.28K | 2.19% |
| Janus Henderson Venture Fund | 474.69K | 1.87% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $3.16M (9 trades) of MEC on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Leuba Sean P | Sale | 12.86K | $327.03K |
| Reddy Jagadeesh A | Sale | 15.69K | $549.82K |
| Reddy Jagadeesh A | Sale | 1.30K | $45.51K |
| Reddy Jagadeesh A | Sale | 17.29K | $518.82K |
| Reddy Jagadeesh A | Sale | 17.94K | $538.26K |
| Raber Ryan F | Sale | 20.00K | $520.00K |
| Nichols Craig D | Sale | 4.00K | $92.96K |
| Leuba Sean P | Gift | 1.01K | — |
| Reddy Jagadeesh A | Sale | 11.46K | $299.33K |
| Reddy Jagadeesh A | Sale | 10.33K | $265.74K |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.44M
- Days to cover
- 3.53
- % of shares outstanding
- 9.61%
- Average daily volume
- 692.02K
- Change since last report
- +22.9%
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