Mayville Engineering Company, Inc. MEC
CIK 0001766368 · CUSIP 578605107
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | Allspring Global Investments Holdings, LLC CIK 1890906 · View history | $35.85M 2,000,350 shares | 0.06% | -52.26K(-2.50%)Reduced | SEC filing ↗ May 5, 2026 | ▾ |
| 02 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $16.62M 926,216 shares | 0.00% | +49.04K(+5.60%)Added | SEC filing ↗ May 7, 2026 | ▾ |
| 03 | BlackRock, Inc. CIK 2012383 · View history | $15.83M 881,854 shares | 0.00% | +16.23K(+1.90%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 04 | Portolan Capital Management, LLC CIK 1350290 · View history | $14.74M 821,136 shares | 0.78% | +308.37K(+60.10%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 05 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $13.48M 751,001 shares | 0.13% | +126.69K(+20.30%)Added | SEC filing ↗ May 12, 2026 | ▾ |
| 06 | EVR Research LP CIK 1843019 · View history | $11.13M 620,000 shares | 6.34% | +15.00K(+2.50%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 07 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history | $10.68M 594,938 shares | 0.00% | — | SEC filing ↗ May 15, 2026 | ▾ |
| 08 | BLAIR WILLIAM & CO/IL CIK 902367 · View history | $10.15M 565,300 shares | 0.03% | -18.46K(-3.20%)Reduced | SEC filing ↗ May 8, 2026 | ▾ |
| 09 | First Eagle Investment Management, LLC CIK 1325447 · Amended · View history | $7.25M 404,075 shares | 0.01% | +46.00K(+12.80%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 10 | Granahan Investment Management, LLC CIK 1026710 · View history | $6.96M 387,470 shares | 0.34% | +119.71K(+44.70%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 11 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $6.84M 380,972 shares | 0.01% | +227.77K(+148.70%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 12 | AMERIPRISE FINANCIAL INC CIK 820027 · Amended · View history | $6.31M 351,790 shares | 0.00% | +946(+0.30%)Added | SEC filing ↗ Jul 17, 2026 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $6.03M 335,835 shares | 0.00% | +6.91K(+2.10%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 14 | STATE STREET CORP CIK 93751 · View history | $5.13M 285,850 shares | 0.00% | +850(+0.30%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 15 | SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history | $4.84M 269,681 shares | 0.03% | +89.74K(+49.90%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 16 | JB CAPITAL PARTNERS LP CIK 1138532 · View history | $4.50M 250,512 shares | 0.77% | 0(0.00%)Unchanged | SEC filing ↗ May 14, 2026 | ▾ |
| 17 | Congruence Capital, LLC CIK 2085569 · View history | $4.21M 234,475 shares | 1.41% | +26.37K(+12.70%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 18 | Boston Partners CIK 1386060 · View history | $4.18M 232,637 shares | 0.00% | +9.91K(+4.40%)Added | SEC filing ↗ May 11, 2026 | ▾ |
| 19 | BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history | $4.00M 222,703 shares | 0.08% | -4.22K(-1.90%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 20 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $3.98M 221,673 shares | 0.00% | -59.17K(-21.10%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
Showing 20 / 124 institutions. The complete set is available through the API.
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