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, Q1 2026
Institutional positions in Mayville Engineering Company, Inc. as of Mar 31, 2026. 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
- 124
- +4 vs. Q4 2025
- Shares held
- 14.4M
- +1.18M (+8.9%) vs. Q4 2025
- Total value
- $258.4M
- +$10.4M (+4.2%) vs. Q4 2025
- New holders
- 24
- 38 more added
- Sold out
- 20
- 39 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Mayville Engineering Company, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wealthspire Advisors, LLC | 141,607 | $2.54M | 0.02% | +46,192+48.4% | Added |
| Bank of America Corp | 183,599 | $3.30M | 0.00% | −35,289−16.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 185,261 | $3.33M | 0.00% | −103,189−35.8% | Reduced |
| Roubaix Capital, LLC | 210,657 | $3.78M | 1.76% | +64,360+44.0% | Added |
| American Century Companies Inc | 221,673 | $3.98M | 0.00% | −59,167−21.1% | Reduced |
| Bridgeway Capital Management, LLC | 222,703 | $4.00M | 0.08% | −4,223−1.9% | Reduced |
| Boston Partners | 232,637 | $4.18M | 0.00% | +9,907+4.4% | Added |
| Congruence Capital, LLC | 234,475 | $4.21M | 1.41% | +26,373+12.7% | Added |
| JB Capital Partners LP | 250,512 | $4.50M | 0.77% | 00.0% | Unchanged |
| Silvercrest Asset Management Group LLC | 269,681 | $4.84M | 0.03% | +89,740+49.9% | Added |
| State Street Corp | 285,850 | $5.13M | 0.00% | +850+0.3% | Added |
| Geode Capital Management, LLC | 335,835 | $6.03M | 0.00% | +6,914+2.1% | Added |
| Ameriprise Financial Inc | 351,790 | $6.31M | 0.00% | +946+0.3% | Added |
| Millennium Management LLC | 380,972 | $6.84M | 0.01% | +227,772+148.7% | Added |
| Granahan Investment Management Inc | 387,470 | $6.96M | 0.34% | +119,708+44.7% | Added |
| First Eagle Investment Management, LLC | 404,075 | $7.25M | 0.01% | +46,000+12.8% | Added |
| Blair William & Co | 565,300 | $10.1M | 0.03% | −18,459−3.2% | Reduced |
| Vanguard Capital Management LLC | 594,938 | $10.7M | 0.00% | +594,938 | New |
| EVR Research LP | 620,000 | $11.1M | 6.34% | +15,000+2.5% | Added |
| Royce & Associates LP | 751,001 | $13.5M | 0.13% | +126,694+20.3% | Added |
| Portolan Capital Management, LLC | 821,136 | $14.7M | 0.78% | +308,374+60.1% | Added |
| BlackRock, Inc. | 881,854 | $15.8M | 0.00% | +16,235+1.9% | Added |
| Dimensional Fund Advisors LP | 926,216 | $16.6M | 0.00% | +49,041+5.6% | Added |
| Allspring Global Investments Holdings, LLC | 2,000,350 | $35.8M | 0.06% | −52,263−2.5% | Reduced |
| 22NW, LP | 0 | $0 | 0.00% | −414,280−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −53,074−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −38,672−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −31,868−100.0% | Sold out |
| Sentinus, LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −19,416−100.0% | Sold out |
| Wealth Enhancement Advisory Services, LLC | 0 | $0 | 0.00% | −13,792−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −12,933−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −12,160−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −11,316−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −10,954−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −7,827−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −5,800−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −2,189−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −2,094−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −659−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −411−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Covestor Ltd | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Perritt Capital Management Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |