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Mayville Engineering Co
MEC

Overview Fund Activity

116 hedge funds and large institutions have $168M invested in Mayville Engineering Co in 2025 Q1 according to their latest regulatory filings, with 15 funds opening new positions, 38 increasing their positions, 38 reducing their positions, and 12 closing their positions.

Holders
116
Holders Change
+2
Holders Change %
+1.75%
% of All Funds
1.58%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
15
Increased
38
Reduced
38
Closed
12
Calls
$99K
Puts
$138K
Net Calls
-$39K
Net Calls Change
-$198K

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$1.93M
2
Marshall Wace
2
Marshall Wace
United Kingdom
$1.36M
3
CP
3
CenterBook Partners
Connecticut
$1.32M
4
Millennium Management
4
Millennium Management
New York
$1.51M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$10.4M

Top Sellers

1
William Blair & Company
1
William Blair & Company
Illinois
$1.24M
2
NC
2
Nokomis Capital
Texas
$4.66M
3
GIM
3
Granahan Investment Management
Massachusetts
$6.42M
4
Goldman Sachs
4
Goldman Sachs
New York
$1.52M
5
HCA
5
Harbor Capital Advisors
Illinois
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Morgan Stanley
51
Morgan Stanley
New York
$387K 28,851 -16,015 -36%
Lazard Asset Management
52
Lazard Asset Management
New York
$383K 28,573 +7,709 +37%
Envestnet Asset Management
53
Envestnet Asset Management
Illinois
$381K 28,348 -434 -2%
GCP
54
GSA Capital Partners
United Kingdom
$357K 26,552 +6,296 +31%
UBS Group
55
UBS Group
Switzerland
$351K 26,159 -47,644 -65%
ECM
56
ExodusPoint Capital Management
New York
$351K 26,116 +26,116 New
LPL Financial
57
LPL Financial
California
$334K 24,846 -9,200 -27%
Susquehanna International Group
58
Susquehanna International Group
Pennsylvania
$319K 23,737 +6,138 +35%
AWM
59
Avior Wealth Management
Nebraska
$308K 22,919 – –
GI
60
Gradient Investments
Minnesota
$301K 22,444 – –
Qube Research & Technologies (QRT)
61
Qube Research & Technologies (QRT)
United Kingdom
$290K 21,580 +21,580 New
RhumbLine Advisers
62
RhumbLine Advisers
Massachusetts
$248K 18,443 -742 -4%
Royal Bank of Canada
63
Royal Bank of Canada
Ontario, Canada
$243K 18,105 -1,002 -5%
SOW
64
State of Wyoming
Wyoming
$243K 18,078 +11,849 +190%
EC
65
EntryPoint Capital
New York
$221K 16,491 +16,491 New
SIA
66
SeaBridge Investment Advisors
New Jersey
$220K 16,345 +16,345 New
Franklin Resources
67
Franklin Resources
California
$213K 15,859 – –
Wealth Enhancement Advisory Services
68
Wealth Enhancement Advisory Services
Minnesota
$212K 15,791 +3,564 +29%
SCM
69
Sterling Capital Management
North Carolina
$211K 15,686 -1,961 -11%
Raymond James Financial
70
Raymond James Financial
Florida
$207K 15,421 -1,700 -10%
Principal Financial Group
71
Principal Financial Group
Iowa
$200K 14,873 +344 +2%
State of Wisconsin Investment Board
72
State of Wisconsin Investment Board
Wisconsin
$199K 14,797 +600 +4%
MFIM
73
Mesirow Financial Investment Management
Illinois
$197K 15,682 – –
Wells Fargo
74
Wells Fargo
California
$187K 13,911 -10,496 -43%
GCM
75
Graham Capital Management
Connecticut
$180K 13,431 +13,431 New
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