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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, Q2 2025

Institutional positions in Mayville Engineering Company, Inc. as of Jun 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
113
−4 vs. Q1 2025
Shares held
12.6M
+205.0K (+1.6%) vs. Q1 2025
Total value
$202.5M
+$34.7M (+20.7%) vs. Q1 2025
New holders
14
47 more added
Sold out
18
31 more reduced

Compare with Q1 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.

Institutional holdersQ2 2025: 113 institutions
Q1 2021: 59 institutionsQ2 2021: 58 institutionsQ3 2021: 78 institutionsQ4 2021: 69 institutionsQ1 2022: 65 institutionsQ2 2022: 64 institutionsQ3 2022: 59 institutionsQ4 2022: 69 institutionsQ1 2023: 77 institutionsQ2 2023: 86 institutionsQ3 2023: 86 institutionsQ4 2023: 79 institutionsQ1 2024: 81 institutionsQ2 2024: 97 institutionsQ3 2024: 116 institutionsQ4 2024: 115 institutionsQ1 2025: 117 institutionsQ2 2025: 113 institutionsQ3 2025: 104 institutionsQ4 2025: 123 institutionsQ1 2026: 124 institutionsQ2 2026: 155 institutions
Value heldQ2 2025: $202.5M
Q1 2021: $106.9MQ2 2021: $164.5MQ3 2021: $141.2MQ4 2021: $108.4MQ1 2022: $70.0MQ2 2022: $55.6MQ3 2022: $41.3MQ4 2022: $88.5MQ1 2023: $116.8MQ2 2023: $108.7MQ3 2023: $97.8MQ4 2023: $133.4MQ1 2024: $136.6MQ2 2024: $179.1MQ3 2024: $246.3MQ4 2024: $195.4MQ1 2025: $167.8MQ2 2025: $202.5MQ3 2025: $183.6MQ4 2025: $260.4MQ1 2026: $258.4MQ2 2026: $790.6M
Institutions holding MEC and their total value by quarter
QuarterHoldersValue
Q2 2026155$790.6M
Q1 2026124$258.4M
Q4 2025123$260.4M
Q3 2025104$183.6M
Q2 2025113$202.5M
Q1 2025117$167.8M
Q4 2024115$195.4M
Q3 2024116$246.3M
Q2 202497$179.1M
Q1 202481$136.6M
Q4 202379$133.4M
Q3 202386$97.8M
Q2 202386$108.7M
Q1 202377$116.8M
Q4 202269$88.5M
Q3 202259$41.3M
Q2 202264$55.6M
Q1 202265$70.0M
Q4 202169$108.4M
Q3 202178$141.2M
Q2 202158$164.5M
Q1 202159$106.9M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Mayville Engineering Company, Inc.; share changes are against Q1 2025.

Institutions holding MEC in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Amalgamated Bank372$6.00K0.00%00.0%Unchanged
Nemes Rush Group LLC200$3.19K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC115$1.83K0.00%+115New
GAMMA Investing LLC91$1.45K0.00%−135−59.7%Reduced
Nisa Investment Advisors, LLC76$1.21K0.00%+47+162.1%Added
Allworth Financial LP59$9420.00%+59New
Parkside Financial Bank & Trust35$5590.00%+35New
Vermillion Wealth Management, Inc.30$4790.00%00.0%Unchanged
MAI Capital Management25$3990.00%00.0%Unchanged
Essential Partners LLC18$2870.00%+18New
True Wealth Design, LLC11$1760.00%−2−15.4%Reduced
IFP Advisors, Inc0$1760.00%0Unchanged
Covestor Ltd5$00.00%−49−90.7%Reduced
Nokomis Capital, L.L.C.0$00.00%−346,966−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−131,053−100.0%Sold out
Millennium Management LLC0$00.00%−112,350−100.0%Sold out
Jane Street Group, LLC0$00.00%−47,194−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−26,552−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−26,116−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−21,580−100.0%Sold out
Principal Financial Group Inc0$00.00%−14,873−100.0%Sold out
Mesirow Financial Investment Management, Inc.0$00.00%−15,682−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−13,431−100.0%Sold out
Ritholtz Wealth Management0$00.00%−13,090−100.0%Sold out
Engineers Gate Manager LP0$00.00%−11,345−100.0%Sold out
Net Worth Advisory Group0$00.00%−10,629−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−6,310−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−6,194−100.0%Sold out
Abound Wealth Management0$00.00%−561−100.0%Sold out
Group One Trading, L.P.0$00.00%−400−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−190−100.0%Sold out