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, Q3 2025
Institutional positions in Mayville Engineering Company, Inc. as of Sep 30, 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
- 104
- −9 vs. Q2 2025
- Shares held
- 13.3M
- +638.0K (+5.0%) vs. Q2 2025
- Total value
- $183.6M
- −$19.0M (−9.4%) vs. Q2 2025
- New holders
- 12
- 44 more added
- Sold out
- 21
- 29 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Mayville Engineering Company, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dimensional Fund Advisors LP | 847,123 | $11.7M | 0.00% | +33,089+4.1% | Added |
| Vanguard Group Inc | 871,659 | $12.0M | 0.00% | −10,536−1.2% | Reduced |
| BlackRock, Inc. | 914,839 | $12.6M | 0.00% | +1,650+0.2% | Added |
| Allspring Global Investments Holdings, LLC | 2,411,103 | $32.9M | 0.05% | −34,987−1.4% | Reduced |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −64,566−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −38,013−100.0% | Sold out |
| Expect Equity LLC | 0 | $0 | 0.00% | −28,233−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −28,186−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −27,064−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −19,225−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −17,800−100.0% | Sold out |
| SeaBridge Investment Advisors LLC | 0 | $0 | 0.00% | −16,356−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −15,989−100.0% | Sold out |
| Transatlantique Private Wealth LLC | 0 | $0 | 0.00% | −12,862−100.0% | Sold out |
| Oppenheimer Asset Management Inc. | 0 | $0 | 0.00% | −11,132−100.0% | Sold out |
| Delta Capital Management LLC | 0 | $0 | 0.00% | −10,380−100.0% | Sold out |
| Chicago Trust Co NA | 0 | $0 | 0.00% | −10,325−100.0% | Sold out |
| Cantor Fitzgerald, L. P. | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −9,128−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −7,213−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −2,597−100.0% | Sold out |
| Nemes Rush Group LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | 0 | Sold out |
| Covestor Ltd | 0 | $0 | 0.00% | −5−100.0% | Sold out |