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MEC

MEC

Mayville Engineering Company, Inc.Manufacturing

Institutional holders
134
As of Q2 2026
Total 13F value
$798.3M
Sum of disclosed positions
New positions
47
This quarter
Sold positions
15
This quarter

Top holders

Institutions with disclosed positions in this stock

FundValueShares% PortfolioChange
Portolan Capital Management, LLC

Portolan Capital Management, Llc

$48.7M1.30M1.82%+58.2%
FMR LLC

Fmr Llc

$48M1.28M0.00%+29943.9%
BlackRock, Inc.

Blackrock, Inc.

$44.3M1.18M0.00%+34.2%
Allspring Global Investments Holdings, LLC

Allspring Global Investments Holdings, Llc

$37.8M1.07M0.06%-46.4%
DRIEHAUS CAPITAL MANAGEMENT LLC

Driehaus Capital Management Llc

$31.7M846.4K0.18%New Position
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC

Summit Partners Public Asset Management, Llc

$30M800.0K0.53%New Position
DIMENSIONAL FUND ADVISORS LP

Dimensional Fund Advisors Lp

$29.3M782.3K0.01%-15.5%
ROYCE & ASSOCIATES LP

Royce & Associates Lp

$28.2M752.1K0.23%+0.1%
VANGUARD CAPITAL MANAGEMENT LLC

Vanguard Capital Management Llc

$27.9M743.6K0.00%+25.0%
First Eagle Investment Management, LLC

First Eagle Investment Management, Llc

$27.7M739.1K0.02%-8.5%
Boston Partners

Boston Partners

$25.8M696.4K0.02%+199.4%
Jupiter Topco LLC

Jupiter Topco Llc

$21.5M575.3K0.01%New Position
BLAIR WILLIAM & CO/IL

Blair William & Co/Il

$20.5M546.7K0.05%-3.3%
WELLINGTON MANAGEMENT GROUP LLP

Wellington Management Group Llp

$17.9M477.6K0.00%New Position
EVR Research LP

Evr Research Lp

$16.6M441.9K8.17%-28.7%
CITADEL ADVISORS LLC

Citadel Advisors

$14.9M397.4K0.00%+249.9%
GEODE CAPITAL MANAGEMENT, LLC

Geode Capital Management, Llc

$14M374.6K0.00%+11.5%
JANE STREET GROUP, LLC

Jane Street Group, Llc

$13.3M356.2K0.00%New Position
JPMORGAN CHASE & CO

Jpmorgan Chase

$13M347.2K0.00%New Position
KENNEDY CAPITAL MANAGEMENT LLC

Kennedy Capital Management Llc

$12.6M336.4K0.22%+215.0%
Ophir Asset Management Pty Ltd

Ophir Asset Management Pty Ltd

$12.2M326.7K1.01%New Position
Granahan Investment Management, LLC

Granahan Investment Management, Llc

$12.1M324.1K0.43%-16.4%
SILVERCREST ASSET MANAGEMENT GROUP LLC

Silvercrest Asset Management Group Llc

$11.8M313.9K0.08%+16.4%
STATE STREET CORP

State Street Corporation

$10.9M291.2K0.00%+1.9%
Nuveen, LLC

Nuveen, Llc

$10.6M281.9K0.00%+494.5%
BANK OF AMERICA CORP /DE/

Bank Of America

$10.4M276.3K0.00%+50.5%
MILLENNIUM MANAGEMENT LLC

Millennium Management

$9.5M253.7K0.00%-33.4%
JB CAPITAL PARTNERS LP

Jb Capital Partners Lp

$9.4M250.5K1.45%Unchanged
Squarepoint Ops LLC

Squarepoint Ops Llc

$8.9M238.8K0.01%+115.9%
CONGRUENCE CAPITAL, LLC

Congruence Capital, Llc

$8.8M235.6K1.32%+0.5%
BRIDGEWAY CAPITAL MANAGEMENT, LLC

Bridgeway Capital Management, Llc

$7.5M201.0K0.13%-9.8%
TWO SIGMA INVESTMENTS, LP

Two Sigma Investments

$7.5M198.9K0.01%+473.1%
AWM Investment Company, Inc.

Awm Investment Company, Inc.

$6.7M180.0K0.59%New Position
OSTERWEIS CAPITAL MANAGEMENT INC

Osterweis Capital Management Inc

$6.5M174.6K0.31%New Position
TUDOR INVESTMENT CORP ET AL

Tudor Investment Corp Et Al

$6.4M169.8K0.01%New Position
ANCHOR CAPITAL ADVISORS LLC

Anchor Capital Advisors Llc

$6.1M161.8K0.09%-0.7%
LORD, ABBETT & CO. LLC

Lord, Abbett & Co. Llc

$5.7M152.2K0.02%New Position
Wealthspire Advisors, LLC

Wealthspire Advisors, Llc

$5.3M141.6K0.03%Unchanged
Pillsbury Lake Capital LLC

Pillsbury Lake Capital Llc

$5.1M136.7K1.40%New Position
Informed Momentum Co LLC

Eam Investors, Llc

$4.8M129.2K0.43%New Position
Russell Investments Group, Ltd.

Russell Investments Group, Ltd.

$4.7M125.5K0.00%-9.2%
SEI INVESTMENTS CO

Sei Investments Co

$4.4M118.6K0.00%-3.5%
Empowered Funds, LLC

Empowered Funds, Llc

$4.4M116.6K0.02%-5.5%
NORTHERN TRUST CORP

Northern Trust Corp

$4.3M115.0K0.00%+14.6%
BNP PARIBAS FINANCIAL MARKETS

Bnp Paribas Arbitrage, Snc

$4.2M112.5K0.00%+3919.1%
NEEDHAM INVESTMENT MANAGEMENT LLC

Needham Investment Management Llc

$4.1M110.0K0.12%+450.0%
Trexquant Investment LP

Trexquant Investment Lp

$3.8M100.5K0.02%New Position
MORGAN STANLEY

Morgan Stanley

$3.8M100.2K0.00%+320.2%
VANGUARD FIDUCIARY TRUST CO

Vanguard Fiduciary Trust Co

$3.7M98.7K0.00%+8.4%
VANGUARD PORTFOLIO MANAGEMENT LLC

Vanguard Portfolio Management Llc

$3.7M98.3K0.00%+29.5%

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