Mayville Engineering Company, Inc.
MEC- Exchange
- NYSE
- Industry
- Metal Forgings & Stampings
- SEC CIK
- 0001766368
In the last 90 days, Mayville Engineering Company, Inc. insiders filed 0 open-market purchases and 1 sale; 155 institutions reported holding it in 13F filings for Q2 2026, worth $807.5M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $327.0K in total
- 1
- 13F holdersQ2 2026, +33 vs. previous quarter
- 155
- 13F valueReported value at the end of Q2 2026
- $807.5M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding MEC, Q2 2026
No superinvestor reported holding MEC at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Mayville Engineering Company, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 7, 2026 (view filing)4:56 PM ET | Aug 6 | 1 day | Leuba Sean PSVP, GC & Secretary | SSale | −12.9K | $25.44 | −$327.0K | −66.0%6.63K after | |
| Jun 12, 2026 (view filing) | Jun 11 | 1 day | Reddy Jagadeesh APresident & CEO | SSale | −15.7K | $35.05 | −$549.9K | −11.2%124.1K after | 10b5-1 |
| Jun 10, 2026 (view filing) | Jun 8 | 2 days | Reddy Jagadeesh APresident & CEO | SSale | −1.30K | $35.01 | −$45.5K | −0.9%139.8K after | 10b5-1 |
| Jun 3, 2026 (view filing) | Jun 1 | 2 days | Reddy Jagadeesh APresident & CEO | SSale | −17.3K | $30.00 | −$518.8K | −10.9%141.1K after | Amended10b5-1 |
| May 27, 2026 (view filing) | May 26 | 1 day | Raber Ryan FEVP - Strategy, Sales & Mktg | SSale | −20.0K | $26.00 | −$520.0K | −18.7%87.0K after | |
| May 26, 2026 (view filing) | May 21 | 5 days | Nichols Craig DSVP, Operations & Supply Chain | SSale | −4.00K | $23.24 | −$93.0K | −96.5%146 after | |
| May 11, 2026 (view filing) | May 7 | 4 days | Reddy Jagadeesh APresident & CEO | SSale | −21.8K | $25.93 | −$565.1K | −12.1%158.4K after | 2 lots10b5-1 |
| Mar 9, 2026 (view filing) | Mar 5 | 4 days | Leuba Sean PGC & Secretary | SSale | −2.50K | $20.07 | −$50.2K | −100.0%0 after | |
| Mar 9, 2026 (view filing) | Mar 5 | 4 days | Leuba Sean PGC & Secretary | SSale | −6.70K | $18.81 | −$126.0K | −36.1%11.8K after | |
| Dec 15, 2025 (view filing) | Dec 11 | 4 days | Fisher Steven LDirector | SSale | −10.0K | $19.11 | −$191.1K | −24.7%30.5K after | 2 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Mayville Engineering Company, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Portolan Capital Management, LLC | 1,299,256 | $48.7M | 1.82% | +478,120+58.2% | Added |
| FMR LLC | 1,280,170 | $48.0M | 0.00% | +1,275,909+29,943.9% | Added |
| BlackRock, Inc. | 1,183,443 | $44.3M | 0.00% | +301,589+34.2% | Added |
| Allspring Global Investments Holdings, LLC | 1,072,916 | $37.8M | 0.06% | −927,434−46.4% | Reduced |
| Driehaus Capital Management LLC | 846,354 | $31.7M | 0.18% | +846,354 | New |
| Summit Partners Public Asset Management, LLC | 800,000 | $30.0M | 0.78% | +800,000 | New |
| Dimensional Fund Advisors LP | 782,276 | $29.3M | 0.01% | −143,940−15.5% | Reduced |
| Royce & Associates LP | 752,083 | $28.2M | 0.23% | +1,082+0.1% | Added |
| Vanguard Capital Management LLC | 743,621 | $27.9M | 0.00% | +148,683+25.0% | Added |
| First Eagle Investment Management, LLC | 739,150 | $27.7M | 0.02% | +335,075+82.9% | Added |