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Allegro MicroSystems

286 hedge funds and large institutions have $3.97B invested in Allegro MicroSystems in 2025 Q3 according to their latest regulatory filings, with 65 funds opening new positions, 75 increasing their positions, 106 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

21% less capital invested

Capital invested by funds: $5B → $3.97B (-$1.03B)

29% less repeat investments, than reductions

Existing positions increased: 75 | Existing positions reduced: 106

91% less call options, than puts

Call options by funds: $13.5M | Put options by funds: $158M

Holders
286
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$13.5M
Puts
$158M
Net Calls
Net Calls Change

Top Buyers

1 +$26.9M
2 +$20.2M
3 +$14.4M
4
Squarepoint
Squarepoint
New York
+$9.93M
5
CSS
Cubist Systematic Strategies
Connecticut
+$7.99M

Top Sellers

1 -$43.1M
2 -$42.9M
3 -$39.5M
4
Citadel Advisors
Citadel Advisors
Florida
-$34.7M
5
Neuberger Berman Group
Neuberger Berman Group
New York
-$29M
Name Holding Trade Value Shares
Change
Change in
Stake
New York State Common Retirement Fund
101
New York State Common Retirement Fund
New York
$1.49M
XT
102
XTX Topco
Cayman Islands
$1.47M
Acadian Asset Management
103
Acadian Asset Management
Massachusetts
$1.4M
FRM
104
Fox Run Management
Connecticut
$1.39M
Zurich Cantonal Bank
105
Zurich Cantonal Bank
Switzerland
$1.25M
Natixis Advisors
106
Natixis Advisors
Massachusetts
$1.22M
EI
107
Ecofi Investissements
France
$1.2M
Massachusetts Financial Services
108
Massachusetts Financial Services
Massachusetts
$1.18M
NIM
109
Needham Investment Management
New York
$1.17M
Handelsbanken Fonder
110
Handelsbanken Fonder
Sweden
$1.17M
SMTF
111
Sphera Management Technology Funds
Israel
$1.17M
TRSOTSOK
112
Teachers Retirement System of the State of Kentucky
Kentucky
$1.16M
Ohio Public Employees Retirement System (OPERS)
113
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.15M
YCM
114
Yousif Capital Management
Michigan
$1.13M
AC
115
AXQ Capital
New Jersey
$1.13M
MNBTD
116
Moody National Bank Trust Division
Texas
$1.12M
ASRS
117
Arizona State Retirement System
Arizona
$1.12M
LPL Financial
118
LPL Financial
California
$1.1M
Envestnet Asset Management
119
Envestnet Asset Management
Illinois
$1.09M
LSERS
120
Louisiana State Employees Retirement System
Louisiana
$1.01M
New York State Teachers Retirement System (NYSTRS)
121
New York State Teachers Retirement System (NYSTRS)
New York
$943K
LP
122
LMR Partners
United Kingdom
$934K
Comerica Bank
123
Comerica Bank
Texas
$933K
MF
124
Magnetar Financial
Illinois
$932K
COPPSERS
125
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$929K