Mayville Engineering Co.MEC
13F holders, Q4 2024 (December 31)114holders −2
16new positions
21sold out
4famous investors
$15.68avg. 13F price*
At the end of Q4 2024, 114 institutions reported holding Mayville Engineering Co. Inc. (MEC) in their 13F filings, down 2 from Q3 2024. 16 opened new positions and 21 sold out. The largest holders were Allspring Global Investments Holdings, LLC ($37.9M), BlackRock, Inc. ($13.3M) and Dimensional Fund Advisors LP ($11.1M). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Mayville Engineering Co. Inc.
- CUSIP
- 578605107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 16 | $4.1M |
| Exits | 21 | $6.6M |
All 13F filers, Q3 2024 → Q4 2024: 1,576,747 shares bought and 890,891 shares sold, net +685,856 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 114 holders
| Allspring Global Investments Holdings, LLC | 0.06% | Reduce -1.4% | 2,439,596 | $37.9M |
| BlackRock, Inc. | 0.00% | Reduce -5.4% | 848,757 | $13.3M |
| Dimensional Fund Advisors LP | 0.00% | Add +13.7% | 704,659 | $11.1M |
| Vanguard Group Inc. | 0.00% | Add +10.9% | 633,752 | $10.0M |
| Tocqueville Asset Management L.P. | 0.16% | No change | 629,714 | $9.9M |
| Royce & Associates LP | 0.09% | Add +4.2% | 584,297 | $9.2M |
| Granahan Investment Management, LLC | 0.38% | Add +71.2% | 578,967 | $9.1M |
| Nokomis Capital, L.L.C. | 3.26% | Add +270.0% | 449,792 | $7.1M |
| First Eagle Investment Management, LLC | 0.01% | Add +10.8% | 332,375 | $5.2M |
| Ancora Advisors LLC | 0.11% | Add +24.6% | 307,789 | $4.8M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.1% | 277,449 | $4.4M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +47.2% | 252,396 | $4.0M |
| JB Capital Partners LP | 0.75% | Add +3.7% | 250,512 | $3.9M |
| State Street Corp. | 0.00% | Add +8.0% | 249,969 | $3.9M |
| American Century Companies Inc. | 0.00% | Add +61.0% | 219,713 | $3.5M |
| Bank of America Corp. | 0.00% | Add +1.1% | 216,926 | $3.4M |
| Russell Investments Group, Ltd. | 0.00% | Add +14.3% | 215,783 | $3.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +40.7% | 213,758 | $3.4M |
| Bridgeway Capital Management, LLC | 0.07% | Reduce -3.0% | 205,081 | $3.2M |
| Blair William & Co. | 0.01% | Add +24.8% | 197,740 | $3.1M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +10.8% | 135,193 | $2.1M |
| Osaic Holdings, Inc. | 0.00% | Reduce -21.1% | 130,667 | $2.1M |
| Globeflex Capital L P | 0.16% | Reduce -19.4% | 116,468 | $1.8M |
| Renaissance Technologies | 0.00% | Reduce -11.2% | 112,700 | $1.8M |
| Ameriprise Financial Inc. | 0.00% | Add +6.2% | 112,113 | $1.8M |
| Northern Trust Corp. | 0.00% | Add +3.2% | 101,334 | $1.6M |
| Anchor Capital Advisors LLC | 0.05% | Add +2.6% | 100,805 | $1.6M |
| Polar Asset Management Partners Inc. | 0.03% | New | 96,553 | $1.5M |
| Wealthspire Advisors, LLC | 0.01% | No change | 95,415 | $1.5M |
| Empowered Funds, LLC | 0.02% | Add +5.2% | 91,513 | $1.4M |
| Harbor Capital Advisors, Inc. | 0.06% | Add +4.2% | 82,413 | $1.3M |
| Expect Equity LLC | 1.23% | — | 74,744 | $1.2M |
| UBS Group AG | 0.00% | Reduce -52.8% | 73,803 | $1.2M |
| AQR Capital Management | 0.00% | Add +321.2% | 71,643 | $1.1M |
| Sei Investments Co. | 0.00% | Add +5.1% | 48,570 | $764K |
| Nuveen Asset Management, LLC | 0.00% | No change | 47,030 | $739K |
| Morgan Stanley | 0.00% | Reduce -21.9% | 44,866 | $705K |
| Martingale Asset Management L P | 0.02% | Add +16.2% | 42,211 | $664K |
| O'shaughnessy Asset Management, LLC | 0.01% | Add +2.3% | 41,363 | $650K |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.5% | 38,257 | $601K |
| Barclays PLC | 0.00% | Add +1.8% | 38,143 | $600K |
| Sheets Smith Wealth Management | 0.07% | Add +3.2% | 36,525 | $574K |
| Invesco Ltd. | 0.00% | Reduce -83.5% | 36,000 | $566K |
| Janney Montgomery Scott LLC | 0.00% | New | 34,663 | $545K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 34,252 | $538K |
| LPL Financial LLC | 0.00% | Add +58.7% | 34,046 | $535K |
| STRS Ohio | 0.00% | Add +64.2% | 33,500 | $527K |
| Millennium Management | 0.00% | New | 30,344 | $477K |
| Perritt Capital Management Inc | 0.25% | No change | 30,000 | $472K |
| Envestnet Asset Management Inc. | 0.00% | Add +1.0% | 28,782 | $452K |
| Squarepoint Ops LLC | 0.00% | New | 27,146 | $427K |
| Yarbrough Capital, LLC | 0.02% | No change | 26,866 | $422K |
| Ritholtz Wealth Management | 0.01% | Add +8.3% | 25,305 | $398K |
| Panagora Asset Management Inc. | 0.00% | Reduce -54.5% | 24,704 | $388K |
| Wells Fargo & Company | 0.00% | Reduce -12.2% | 24,407 | $384K |
| Avior Wealth Management, LLC | 0.01% | No change | 22,919 | $360K |
| Gradient Investments LLC | 0.01% | Reduce -2.9% | 22,444 | $353K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -46.5% | 22,002 | $346K |
| Riverwater Partners LLC | 0.17% | Reduce -7.5% | 21,577 | $339K |
| Lazard Asset Management LLC | 0.00% | Add +90.2% | 20,864 | $327K |
| Gsa Capital Partners LLP | 0.02% | New | 20,256 | $318K |
| Rhumbline Advisers | 0.00% | Add +3.3% | 19,185 | $302K |
| Royal Bank of Canada | 0.00% | Add +3.3% | 19,107 | $301K |
| Jane Street Group, LLC | 0.00% | Add +28.2% | 18,248 | $287K |
| Sterling Capital Management LLC | 0.00% | Add +1.9% | 17,647 | $277K |
| Susquehanna International Group, LLP | 0.00% | New | 17,599 | $277K |
| Raymond James Financial Inc. | 0.00% | — | 17,121 | $269K |
| Engineers Gate Manager LP | 0.00% | Add +46.8% | 16,229 | $255K |
| Franklin Resources Inc. | 0.00% | No change | 15,859 | $249K |
| Mesirow Financial Investment Management, Inc. | 0.00% | Add +0.6% | 15,682 | $247K |
| HRT Financial LP | 0.00% | New | 15,623 | $245K |
| Principal Financial Group Inc. | 0.00% | Add +10.8% | 14,529 | $228K |
| State of Wisconsin Investment Board | 0.00% | New | 14,197 | $223K |
| Acadian Asset Management LLC | 0.00% | Reduce -70.8% | 13,751 | $215K |
| Cornercap Investment Counsel Inc. | 0.07% | No change | 13,170 | $207K |
| Public Employees Retirement System of Ohio | 0.00% | No change | 12,470 | $196K |
| Citadel Advisors | 0.00% | Reduce -30.3% | 12,431 | $195K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -0.4% | 12,227 | $192K |
| Deutsche Bank AG | 0.00% | Add +94.7% | 12,122 | $191K |
| Integrated Quantitative Investments LLC | 0.09% | — | 11,264 | $177K |
| Net Worth Advisory Group | 0.05% | Reduce -3.8% | 10,804 | $170K |
| Delta Capital Management LLC | 0.10% | No change | 10,610 | $167K |
| Citigroup Inc. | 0.00% | Add +9.1% | 10,579 | $166K |
| BNP Paribas Financial Markets | 0.00% | Reduce -70.8% | 8,672 | $136K |
| Harbour Investments, Inc. | 0.00% | No change | 7,700 | $121K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.3% | 7,290 | $115K |
| MetLife Investment Management, LLC | 0.00% | No change | 6,477 | $102K |
| Corebridge Financial, Inc. | 0.00% | Reduce -5.8% | 6,403 | $101K |
| State of Wyoming | 0.01% | Reduce -55.8% | 6,229 | $98K |
| JPMorgan Chase & Co. | 0.00% | Add +8.1% | 6,150 | $97K |
| New York State Common Retirement Fund | 0.00% | No change | 5,395 | $85K |
| FMR LLC | 0.00% | Add +0.6% | 3,145 | $49K |
| US Bancorp \de | 0.00% | No change | 2,853 | $45K |
| Aquatic Capital Management LLC | 0.00% | New | 2,773 | $44K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | — | 2,557 | $40K |
| R Squared Ltd | 0.04% | — | 2,550 | $40K |
| AlphaQuest LLC | 0.01% | New | 2,441 | $38K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -81.0% | 1,480 | $23K |
| Legal & General Group Plc | 0.00% | No change | 1,260 | $20K |
| New York State Teachers Retirement System | 0.00% | No change | 1,161 | $18K |
| Avion Wealth | 0.00% | No change | 1,000 | $15K |
| California State Teachers Retirement System | 0.00% | No change | 922 | $14K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 912 | $14K |
| Group One Trading LLC | 0.00% | Add +192.0% | 400 | $6K |
| Amalgamated Bank | 0.00% | No change | 372 | $6K |
| Comerica Bank | 0.00% | Add +10.8% | 236 | $4K |
| Nemes Rush Group LLC | 0.00% | New | 200 | $3K |
| Cwm, LLC | 0.00% | Reduce -60.9% | 88 | $1K |
| GAMMA Investing LLC | 0.00% | Reduce -69.0% | 31 | $487 |
| Vermillion Wealth Management, Inc. | 0.00% | — | 30 | $472 |
| MAI Capital Management | 0.00% | New | 25 | $393 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 12 | $189 |
| Macquarie Group Ltd. | 0.00% | New | 2,846 | $45 |
| Covestor Ltd | 0.00% | New | 20 | $0 |
"% of holder's portfolio" is MEC's weight in each manager's 13F, not the share of Mayville Engineering Co. Inc. the manager owns.