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Mayville Engineering Co
MEC

Overview Fund Activity

110 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, 46 increasing their positions, 31 reducing their positions, and 18 closing their positions.

Holders
110
Holders Change
-6
Holders Change %
-5.17%
% of All Funds
1.48%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
13
Increased
46
Reduced
31
Closed
18
Calls
$7K
Puts
$2K
Net Calls
+$5K
Net Calls Change
+$44K

Top Buyers

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

Top Sellers

1
NC
1
Nokomis Capital
Texas
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$255K
3
PAMP
3
Polar Asset Management Partners
Ontario, Canada
$0
4
Millennium Management
4
Millennium Management
New York
$0
5
Squarepoint
5
Squarepoint
New York
$307K
Name Market Value Shares Shares
Change 		Shares
Change %
NRG
101
Nemes Rush Group
Michigan
$3.19K 200 – –
EWA
102
EverSource Wealth Advisors
Alabama
$1.84K 115 +115 New
GI
103
GAMMA Investing
California
$1.45K 91 -135 -60%
Nisa Investment Advisors
104
Nisa Investment Advisors
Missouri
$1.21K 76 +47 +162%
AF
105
Allworth Financial
California
$942 59 +59 New
PFBT
106
Parkside Financial Bank & Trust
Missouri
$559 35 +35 New
VWM
107
Vermillion Wealth Management
Minnesota
$479 30 – –
MCM
108
MAI Capital Management
Ohio
$399 25 – –
TWD
109
True Wealth Design
Ohio
$176 11 -2 -15%
IA
110
IFP Advisors
Florida
– – – –
NC
111
Nokomis Capital
Texas
– – -346,966 Closed
PAMP
112
Polar Asset Management Partners
Ontario, Canada
– – -131,053 Closed
Millennium Management
113
Millennium Management
New York
– – -112,350 Closed
Jane Street
114
Jane Street
New York
– – -47,194 Closed
GCP
115
GSA Capital Partners
United Kingdom
– – -26,552 Closed
ECM
116
ExodusPoint Capital Management
New York
– – -26,116 Closed
Qube Research & Technologies (QRT)
117
Qube Research & Technologies (QRT)
United Kingdom
– – -21,580 Closed
MFIM
118
Mesirow Financial Investment Management
Illinois
– – -15,682 Closed
Principal Financial Group
119
Principal Financial Group
Iowa
– – -14,873 Closed
GCM
120
Graham Capital Management
Connecticut
– – -13,431 Closed
RWM
121
Ritholtz Wealth Management
New York
– – -13,090 Closed
EGM
122
Engineers Gate Manager
New York
– – -11,345 Closed
NWAG
123
Net Worth Advisory Group
Utah
– – -10,629 Closed
CF
124
Corebridge Financial
Texas
– – -6,310 Closed
ACM
125
Aquatic Capital Management
Illinois
– – -6,194 Closed
2 3 4
5
6