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Allegro MicroSystems

289 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, 77 increasing their positions, 107 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)

28% less repeat investments, than reductions

Existing positions increased: 77 | Existing positions reduced: 107

91% less call options, than puts

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

Holders
289
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
Lazard Asset Management
126
Lazard Asset Management
New York
$924K
Sumitomo Mitsui Trust Group
127
Sumitomo Mitsui Trust Group
Japan
$924K
Walleye Trading
128
Walleye Trading
New York
$874K
SOMRS
129
State of Michigan Retirement System
Michigan
$861K
Verition Fund Management
130
Verition Fund Management
Connecticut
$848K
AA
131
ALPS Advisors
Colorado
$846K
Thrivent Financial for Lutherans
132
Thrivent Financial for Lutherans
Minnesota
$832K
LCG
133
Lisanti Capital Growth
New York
$816K
NMIMC
134
Northwestern Mutual Investment Management Company
Wisconsin
$807K
KK
135
KLP Kapitalforvaltning
Norway
$803K
NMERB
136
New Mexico Educational Retirement Board
New Mexico
$791K
Parallax Volatility Advisers
137
Parallax Volatility Advisers
California
$768K
SG Americas Securities
138
SG Americas Securities
New York
$763K
PSC
139
Prentiss Smith & Co
Vermont
$732K
OPERF
140
Oregon Public Employees Retirement Fund
Oregon
$728K
Teacher Retirement System of Texas
141
Teacher Retirement System of Texas
Texas
$704K
SF
142
Synovus Financial
Georgia
$691K
Ensign Peak Advisors
143
Ensign Peak Advisors
Utah
$685K
AIP
144
Ameritas Investment Partners
Nebraska
$679K
SPA
145
Sherbrooke Park Advisers
New York
$665K
PCM
146
Prelude Capital Management
New York
$664K
Creative Planning
147
Creative Planning
Kansas
$662K
AAM
148
Advisors Asset Management
Colorado
$657K
GC
149
Guggenheim Capital
Illinois
$591K
YIH
150
Y-Intercept (HK)
Hong Kong
$590K