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 |
|---|---|---|---|---|---|
| Allspring Global Investments Holdings, LLC | 2,000,350 | $35.8M | 0.06% | −52,263−2.5% | Reduced |
| Dimensional Fund Advisors LP | 926,216 | $16.6M | 0.00% | +49,041+5.6% | Added |
| BlackRock, Inc. | 881,854 | $15.8M | 0.00% | +16,235+1.9% | Added |
| Portolan Capital Management, LLC | 821,136 | $14.7M | 0.78% | +308,374+60.1% | Added |
| Royce & Associates LP | 751,001 | $13.5M | 0.13% | +126,694+20.3% | Added |
| EVR Research LP | 620,000 | $11.1M | 6.34% | +15,000+2.5% | Added |
| Vanguard Capital Management LLC | 594,938 | $10.7M | 0.00% | +594,938 | New |
| Blair William & Co | 565,300 | $10.1M | 0.03% | −18,459−3.2% | Reduced |
| First Eagle Investment Management, LLC | 404,075 | $7.25M | 0.01% | +46,000+12.8% | Added |
| Granahan Investment Management Inc | 387,470 | $6.96M | 0.34% | +119,708+44.7% | Added |
| Millennium Management LLC | 380,972 | $6.84M | 0.01% | +227,772+148.7% | Added |
| Ameriprise Financial Inc | 351,790 | $6.31M | 0.00% | +946+0.3% | Added |
| Geode Capital Management, LLC | 335,835 | $6.03M | 0.00% | +6,914+2.1% | Added |
| State Street Corp | 285,850 | $5.13M | 0.00% | +850+0.3% | Added |
| Silvercrest Asset Management Group LLC | 269,681 | $4.84M | 0.03% | +89,740+49.9% | Added |
| JB Capital Partners LP | 250,512 | $4.50M | 0.77% | 00.0% | Unchanged |
| Congruence Capital, LLC | 234,475 | $4.21M | 1.41% | +26,373+12.7% | Added |
| Boston Partners | 232,637 | $4.18M | 0.00% | +9,907+4.4% | Added |
| Bridgeway Capital Management, LLC | 222,703 | $4.00M | 0.08% | −4,223−1.9% | Reduced |
| American Century Companies Inc | 221,673 | $3.98M | 0.00% | −59,167−21.1% | Reduced |
| Roubaix Capital, LLC | 210,657 | $3.78M | 1.76% | +64,360+44.0% | Added |
| Arrowstreet Capital, Limited Partnership | 185,261 | $3.33M | 0.00% | −103,189−35.8% | Reduced |
| Bank of America Corp | 183,599 | $3.30M | 0.00% | −35,289−16.1% | Reduced |
| Wealthspire Advisors, LLC | 141,607 | $2.54M | 0.02% | +46,192+48.4% | Added |
| Panoramic Capital, LLC | 140,000 | $2.51M | 1.76% | +140,000 | New |
| Russell Investments Group, Ltd. | 138,215 | $2.48M | 0.00% | −51,766−27.2% | Reduced |
| Empowered Funds, LLC | 123,293 | $2.21M | 0.01% | +123,293 | New |
| SEI Investments Co | 122,878 | $2.21M | 0.00% | +39,309+47.0% | Added |
| CenterBook Partners LP | 120,303 | $2.16M | 0.12% | −135,488−53.0% | Reduced |
| UBS Group AG | 116,571 | $2.09M | 0.00% | −29,981−20.5% | Reduced |
| Squarepoint Ops LLC | 110,569 | $1.98M | 0.00% | +110,569 | New |
| Kennedy Capital Management, Inc. | 106,791 | $1.92M | 0.04% | +2,446+2.3% | Added |
| Northern Trust Corp | 100,384 | $1.80M | 0.00% | +6,016+6.4% | Added |
| Formula Growth Ltd | 100,000 | $1.79M | 0.81% | +60,000+150.0% | Added |
| Advisor Group Holdings, Inc. | 99,104 | $1.78M | 0.00% | −20,974−17.5% | Reduced |
| Vanguard Fiduciary Trust Co | 91,044 | $1.63M | 0.00% | +91,044 | New |
| Anchor Capital Advisors LLC | 81,442 | $1.46M | 0.04% | −26,876−24.8% | Reduced |
| Vanguard Portfolio Management LLC | 75,903 | $1.36M | 0.00% | +75,903 | New |
| Tocqueville Asset Management L.P. | 71,100 | $1.28M | 0.02% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 64,908 | $1.17M | 0.00% | −24,839−27.7% | Reduced |
| Renaissance Technologies LLC | 62,900 | $1.13M | 0.00% | −8,300−11.7% | Reduced |
| Citadel Advisors LLC | 56,786 | $1.02M | 0.00% | −46,677−45.1% | Reduced |
| Integrated Quantitative Investments LLC | 50,659 | $909.3K | 0.16% | +50,659 | New |
| Nuveen, LLC | 47,418 | $851.2K | 0.00% | −40,169−45.9% | Reduced |
| SummerHaven Investment Management, LLC | 45,325 | $813.6K | 0.50% | −6,400−12.4% | Reduced |
| HighTower Advisors, LLC | 44,587 | $800.3K | 0.00% | +44,587 | New |
| Journey Strategic Wealth LLC | 44,206 | $793.5K | 0.02% | +15,021+51.5% | Added |
| XTX Topco Ltd | 41,478 | $744.5K | 0.01% | +20,144+94.4% | Added |
| Charles Schwab Investment Management Inc | 40,098 | $719.8K | 0.00% | −3,357−7.7% | Reduced |
| Numerai GP LLC | 39,755 | $713.6K | 0.07% | +39,755 | New |
| Essential Investment Partners LLC | 39,639 | $711.5K | 0.66% | +5,370+15.7% | Added |
| Sheets Smith Wealth Management | 38,975 | $699.6K | 0.08% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 38,851 | $697.4K | 0.00% | −3,438−8.1% | Reduced |
| Panagora Asset Management Inc | 36,765 | $659.9K | 0.00% | −17,829−32.7% | Reduced |
| Legato Capital Management LLC | 35,698 | $640.8K | 0.06% | +35,698 | New |
| Two Sigma Investments, LP | 34,708 | $623.0K | 0.00% | +34,708 | New |
| State of Wisconsin Investment Board | 32,262 | $579.1K | 0.00% | −8,435−20.7% | Reduced |
| Ancora Advisors, LLC | 32,133 | $576.8K | 0.01% | −93,897−74.5% | Reduced |
| Janney Montgomery Scott LLC | 31,305 | $562.0K | 0.00% | −2,845−8.3% | Reduced |
| North Star Investment Management Corp. | 30,000 | $538.5K | 0.03% | +30,000 | New |
| Invesco Ltd. | 27,028 | $485.2K | 0.00% | −842−3.0% | Reduced |
| O'Shaughnessy Asset Management, LLC | 26,370 | $473.3K | 0.00% | −774−2.9% | Reduced |
| Morgan Stanley | 23,834 | $427.8K | 0.00% | −58,556−71.1% | Reduced |
| LPL Financial LLC | 21,771 | $390.8K | 0.00% | −17−0.1% | Reduced |
| AQR Capital Management LLC | 20,383 | $365.9K | 0.00% | −11,525−36.1% | Reduced |
| Envestnet Asset Management Inc | 20,301 | $364.4K | 0.00% | −3,057−13.1% | Reduced |
| Needham Investment Management LLC | 20,000 | $359.0K | 0.02% | +20,000 | New |
| Barclays PLC | 19,028 | $341.6K | 0.00% | −17,997−48.6% | Reduced |
| SummitTX Capital, L.P. | 18,696 | $335.6K | 0.01% | +3,578+23.7% | Added |
| Rhumbline Advisers | 18,200 | $326.7K | 0.00% | +168+0.9% | Added |
| Gradient Investments LLC | 17,104 | $307.0K | 0.00% | −3,800−18.2% | Reduced |
| Johnson Financial Group, Inc. | 16,475 | $295.7K | 0.01% | 00.0% | Unchanged |
| Worth Venture Partners, LLC | 15,110 | $271.2K | 0.86% | +1,375+10.0% | Added |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 14,919 | $267.8K | 0.01% | 00.0% | Unchanged |
| Franklin Resources Inc | 13,528 | $242.8K | 0.00% | +70+0.5% | Added |
| Alliancebernstein L.P. | 12,810 | $239.8K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 12,569 | $225.6K | 0.00% | −9,922−44.1% | Reduced |
| Mirabella Financial Services LLP | 12,430 | $223.1K | 0.02% | +12,430 | New |
| Brevan Howard Capital Management LP | 12,023 | $215.8K | 0.00% | +12,023 | New |
| Heck Capital Advisors, LLC | 11,494 | $206.3K | 0.02% | +11,494 | New |
| Deutsche Bank AG | 10,237 | $183.8K | 0.00% | +1,988+24.1% | Added |
| Aquatic Capital Management LLC | 8,901 | $159.8K | 0.00% | +4,518+103.1% | Added |
| MetLife Investment Management | 7,958 | $142.8K | 0.00% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 7,785 | $140.0K | 0.01% | +7,785 | New |
| Harbour Investments, Inc. | 7,700 | $138.2K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 6,241 | $112.0K | 0.00% | +136+2.2% | Added |
| Jones Financial Companies LLLP | 6,181 | $109.4K | 0.00% | +3,252+111.0% | Added |
| Vanguard Global Advisers, LLC | 5,936 | $106.6K | 0.00% | +5,936 | New |
| New York State Common Retirement Fund | 5,395 | $96.8K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 5,481 | $95.8K | 0.00% | −72−1.3% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 4,651 | $83.5K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 4,261 | $76.5K | 0.00% | +932+28.0% | Added |
| State of Alaska, Department of Revenue | 3,903 | $70.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,447 | $62.0K | 0.00% | −337−8.9% | Reduced |
| BNP Paribas Arbitrage, SA | 2,798 | $50.2K | 0.00% | −157−5.3% | Reduced |
| Citigroup Inc | 1,637 | $29.4K | 0.00% | +246+17.7% | Added |
| Ameritas Investment Partners, Inc. | 1,454 | $26.1K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,281 | $23.0K | 0.00% | +191+17.5% | Added |
| Legal & General Group Plc | 1,260 | $22.6K | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 1,000 | $17.0K | 0.00% | 00.0% | Unchanged |