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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 %
ACM
126
Aquatic Capital Management
Illinois
– -$83.2K -6,194 Closed
AWM
127
Abound Wealth Management
Tennessee
– -$7.54K -561 Closed
Group One Trading
128
Group One Trading
Illinois
– -$5.37K -400 Closed
Northwestern Mutual Wealth Management
129
Northwestern Mutual Wealth Management
Wisconsin
– -$2.55K -190 Closed
2 3 4 5
6