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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 %
RC
26
Roubaix Capital
Colorado
$1.61M +$1.61M +101,138 New
ACA
27
Anchor Capital Advisors
Massachusetts
$1.56M -$51.2K -3,211 -3%
WANY
28
Wealthspire Advisors (New York)
New York
$1.52M – – –
CP
29
CenterBook Partners
Connecticut
$1.52M -$55.3K -3,467 -4%
UBS Group
30
UBS Group
Switzerland
$1.4M +$980K +61,375 +235%
Goldman Sachs
31
Goldman Sachs
New York
$1.37M -$446K -27,963 -25%
Marshall Wace
32
Marshall Wace
United Kingdom
$1.03M -$587K -36,806 -36%
Morgan Stanley
33
Morgan Stanley
New York
$994K +$534K +33,451 +116%
SEI Investments
34
SEI Investments
Pennsylvania
$822K +$97.4K +6,103 +13%
NL
35
Nuveen LLC
North Carolina
$787K +$22.7K +1,420 +3%
MAM
36
Martingale Asset Management
Massachusetts
$695K -$20.7K -1,299 -3%
Barclays
37
Barclays
United Kingdom
$646K +$173K +10,865 +37%
Ameriprise
38
Ameriprise
Minnesota
$633K +$47.2K +2,958 +8%
Bank of New York Mellon
39
Bank of New York Mellon
New York
$626K +$33.9K +2,126 +6%
Charles Schwab
40
Charles Schwab
California
$625K +$77.9K +4,879 +14%
PAM
41
Panagora Asset Management
Massachusetts
$622K +$622K +38,987 New
SSWM
42
Sheets Smith Wealth Management
North Carolina
$616K +$10.9K +680 +2%
Janus Henderson Group
43
Janus Henderson Group
United Kingdom
$607K +$607K +38,013 New
Janney Montgomery Scott
44
Janney Montgomery Scott
Pennsylvania
$583K +$3.04K +190 +0.5%
SO
45
STRS Ohio
Ohio
$496K -$38.3K -2,400 -7%
Royal Bank of Canada
46
Royal Bank of Canada
Ontario, Canada
$492K +$203K +12,688 +70%
OSAM
47
O'Shaughnessy Asset Management
Connecticut
$488K +$271 +17 +0.1%
PCM
48
Perritt Capital Management
Illinois
$479K – – –
Invesco
49
Invesco
Georgia
$470K -$53.4K -3,346 -10%
EEL
50
Expect Equity LLC
Maryland
$451K -$420K -26,341 -48%
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