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 $790.6M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Mayville Engineering Company, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 123
- +19 vs. Q3 2025
- Shares held
- 13.9M
- +603.3K (+4.5%) vs. Q3 2025
- Total value
- $260.4M
- +$76.8M (+41.8%) vs. Q3 2025
- New holders
- 30
- 34 more added
- Sold out
- 11
- 42 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MEC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 155 | $790.6M |
| Q1 2026 | 124 | $258.4M |
| Q4 2025 | 123 | $260.4M |
| Q3 2025 | 104 | $183.6M |
| Q2 2025 | 113 | $202.5M |
| Q1 2025 | 117 | $167.8M |
| Q4 2024 | 115 | $195.4M |
| Q3 2024 | 116 | $246.3M |
| Q2 2024 | 97 | $179.1M |
| Q1 2024 | 81 | $136.6M |
| Q4 2023 | 79 | $133.4M |
| Q3 2023 | 86 | $97.8M |
| Q2 2023 | 86 | $108.7M |
| Q1 2023 | 77 | $116.8M |
| Q4 2022 | 69 | $88.5M |
| Q3 2022 | 59 | $41.3M |
| Q2 2022 | 64 | $55.6M |
| Q1 2022 | 65 | $70.0M |
| Q4 2021 | 69 | $108.4M |
| Q3 2021 | 78 | $141.2M |
| Q2 2021 | 58 | $164.5M |
| Q1 2021 | 59 | $106.9M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Mayville Engineering Company, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Russell Investments Group, Ltd. | 189,981 | $3.56M | 0.00% | −2,413−1.3% | Reduced |
| Congruence Capital, LLC | 208,102 | $3.90M | 1.43% | +208,102 | New |
| Bank of America Corp | 218,888 | $4.10M | 0.00% | +9,913+4.7% | Added |
| Boston Partners | 222,730 | $4.17M | 0.00% | +24,570+12.4% | Added |
| Bridgeway Capital Management, LLC | 226,926 | $4.25M | 0.09% | −9,622−4.1% | Reduced |
| JB Capital Partners LP | 250,512 | $4.69M | 0.81% | 00.0% | Unchanged |
| CenterBook Partners LP | 255,791 | $4.79M | 0.23% | +78,132+44.0% | Added |
| Granahan Investment Management Inc | 267,762 | $5.01M | 0.21% | −81,505−23.3% | Reduced |
| American Century Companies Inc | 280,840 | $5.26M | 0.00% | −83,954−23.0% | Reduced |
| State Street Corp | 285,000 | $5.34M | 0.00% | +10,064+3.7% | Added |
| Arrowstreet Capital, Limited Partnership | 288,450 | $5.40M | 0.00% | +19,815+7.4% | Added |
| Geode Capital Management, LLC | 328,921 | $6.16M | 0.00% | −5,952−1.8% | Reduced |
| Ameriprise Financial Inc | 350,844 | $6.57M | 0.00% | −43,317−11.0% | Reduced |
| First Eagle Investment Management, LLC | 358,075 | $6.70M | 0.01% | +3,500+1.0% | Added |
| 22NW, LP | 414,280 | $7.76M | 5.97% | +14,390+3.6% | Added |
| Portolan Capital Management, LLC | 512,762 | $9.60M | 0.51% | +512,762 | New |
| Blair William & Co | 583,759 | $10.9M | 0.03% | +206,549+54.8% | Added |
| EVR Research LP | 605,000 | $11.3M | 6.11% | +605,000 | New |
| Royce & Associates LP | 624,307 | $11.7M | 0.12% | +57,590+10.2% | Added |
| Vanguard Group Inc | 627,655 | $11.7M | 0.00% | −244,004−28.0% | Reduced |
| BlackRock, Inc. | 865,619 | $16.2M | 0.00% | −49,220−5.4% | Reduced |
| Dimensional Fund Advisors LP | 877,175 | $16.4M | 0.00% | +30,052+3.5% | Added |
| Allspring Global Investments Holdings, LLC | 2,052,613 | $38.9M | 0.06% | −358,490−14.9% | Reduced |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −121,880−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −116,468−100.0% | Sold out |
| Martingale Asset Management L P | 0 | $0 | 0.00% | −35,610−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −26,731−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −24,098−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −22,300−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −19,025−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −12,315−100.0% | Sold out |
| New York State Teachers Retirement System | 0 | $0 | 0.00% | −1,287−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −210−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −80−100.0% | Sold out |