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Mayville Engineering Co
MEC

Overview Fund Activity

111 hedge funds and large institutions have $202M invested in Mayville Engineering Co in 2025 Q2 according to their latest regulatory filings, with 13 funds opening new positions, 47 increasing their positions, 31 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
111
Holders Change
-5
Holders Change %
-4.31%
% of All Funds
1.49%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
13
Increased
47
Reduced
31
Closed
18
Calls
$7K
Puts
$2K
Net Calls
+$5K
Net Calls Change
+$44K

Top Buyers

1
William Blair & Company
William Blair & Company
Illinois
$5.96M
2
Vanguard Group
Vanguard Group
Pennsylvania
$14.1M
3
2L
22NW LP
Washington
$2.48M
4
RC
Roubaix Capital
Colorado
$1.61M
5
BlackRock
BlackRock
New York
$14.6M

Top Sellers

1
NC
Nokomis Capital
Texas
$0
2
Citadel Advisors
Citadel Advisors
Florida
$255K
3
PAMP
Polar Asset Management Partners
Ontario, Canada
$0
4
Millennium Management
Millennium Management
New York
$0
5
Squarepoint
Squarepoint
New York
$307K
Name Holding Trade Value Shares
Change 		Shares
Change %
AB
101
Amalgamated Bank
New York
$6K – – –
NRG
102
Nemes Rush Group
Michigan
$3.19K – – –
EWA
103
EverSource Wealth Advisors
Alabama
$1.84K +$1.84K +115 New
GI
104
GAMMA Investing
California
$1.45K -$2.15K -135 -60%
Nisa Investment Advisors
105
Nisa Investment Advisors
Missouri
$1.21K +$750 +47 +162%
AF
106
Allworth Financial
California
$942 +$942 +59 New
PFBT
107
Parkside Financial Bank & Trust
Missouri
$559 +$559 +35 New
VWM
108
Vermillion Wealth Management
Minnesota
$479 – – –
MCM
109
MAI Capital Management
Ohio
$399 – – –
TWD
110
True Wealth Design
Ohio
$176 -$32 -2 -15%
IA
111
IFP Advisors
Florida
$176 -$54 – –
NC
112
Nokomis Capital
Texas
– -$4.66M -346,966 Closed
PAMP
113
Polar Asset Management Partners
Ontario, Canada
– -$1.76M -131,053 Closed
Millennium Management
114
Millennium Management
New York
– -$1.51M -112,350 Closed
Jane Street
115
Jane Street
New York
– -$634K -47,194 Closed
GCP
116
GSA Capital Partners
United Kingdom
– -$357K -26,552 Closed
ECM
117
ExodusPoint Capital Management
New York
– -$351K -26,116 Closed
Qube Research & Technologies (QRT)
118
Qube Research & Technologies (QRT)
United Kingdom
– -$290K -21,580 Closed
MFIM
119
Mesirow Financial Investment Management
Illinois
– -$197K -15,682 Closed
Principal Financial Group
120
Principal Financial Group
Iowa
– -$200K -14,873 Closed
GCM
121
Graham Capital Management
Connecticut
– -$180K -13,431 Closed
RWM
122
Ritholtz Wealth Management
New York
– -$176K -13,090 Closed
EGM
123
Engineers Gate Manager
New York
– -$152K -11,345 Closed
NWAG
124
Net Worth Advisory Group
Utah
– -$143K -10,629 Closed
CF
125
Corebridge Financial
Texas
– -$84.7K -6,310 Closed
2 3 4
5
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