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Allegro MicroSystems
ALGM

Overview Fund Activity

289 hedge funds and large institutions have $3.93B invested in Allegro MicroSystems in 2025 Q1 according to their latest regulatory filings, with 71 funds opening new positions, 104 increasing their positions, 80 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
289
Holders Change
+35
Holders Change %
+13.78%
% of All Funds
3.93%
Holding in Top 10
5
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+150%
% of All Funds
0.07%
New
71
Increased
104
Reduced
80
Closed
34
Calls
$38.2M
Puts
$78.8M
Net Calls
-$40.6M
Net Calls Change
-$53.4M

Top Buyers

1
Capital Research Global Investors
Capital Research Global Investors
California
+$133M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$104M
3
FCM
Frontier Capital Management
Massachusetts
+$70.8M
4
Citadel Advisors
Citadel Advisors
Florida
+$69.3M
5
Invesco
Invesco
Georgia
+$69M

Top Sellers

1
Westfield Capital Management
Westfield Capital Management
Massachusetts
-$48.9M
2
WP
Woodline Partners
California
-$45.6M
3
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$38.6M
4
PP
Paloma Partners
Connecticut
-$35.1M
5
Two Sigma Investments
Two Sigma Investments
New York
-$33.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
SEI Investments
51
SEI Investments
Pennsylvania
$9.62M +$233K +9,267 +2%
UBS AM
52
UBS AM
Illinois
$8.91M +$2.15M +85,607 +32%
RhumbLine Advisers
53
RhumbLine Advisers
Massachusetts
$8.3M +$111K +4,428 +1%
TAM
54
Trillium Asset Management
Massachusetts
$8.21M +$1.75M +69,782 +27%
Janus Henderson Group
55
Janus Henderson Group
United Kingdom
$8.13M +$6.71M +269,863 +471%
Westfield Capital Management
56
Westfield Capital Management
Massachusetts
$7.63M -$48.9M -1,944,000 -86%
ACH
57
ArrowMark Colorado Holdings
Colorado
$7.25M +$531K +21,117 +8%
JG
58
Jain Global
New York
$7.16M +$2.39M +94,991 +50%
PC
59
Pier Capital
Connecticut
$7.16M -$3.97M -158,054 -36%
Comerica Bank
60
Comerica Bank
Texas
$6.86M -$9.46M -376,565 -58%
PCM
61
Peregrine Capital Management
Minnesota
$6.75M +$6.75M +268,416 New
Lazard Asset Management
62
Lazard Asset Management
New York
$6.65M -$3.52M -140,061 -35%
MCP
63
Meridiem Capital Partners
Texas
$6.28M -$22.6M -900,146 -78%
Swiss National Bank
64
Swiss National Bank
Switzerland
$6.27M -$93K -3,700 -1%
PAMP
65
Polar Asset Management Partners
Ontario, Canada
$5.83M -$3.69M -146,649 -39%
Retirement Systems of Alabama
66
Retirement Systems of Alabama
Alabama
$5.03M +$7.01K +279 +0.1%
Legal & General Group
67
Legal & General Group
United Kingdom
$4.92M +$160K +6,380 +3%
LN
68
Lightrock Netherlands
Netherlands
$4.85M -$269K -10,681 -5%
Goldman Sachs
69
Goldman Sachs
New York
$4.77M -$555K -22,100 -10%
OCM
70
Osterweis Capital Management
California
$4.51M +$4.51M +179,290 New
NL
71
Nuveen LLC
North Carolina
$4.13M +$4.13M +123,737 New
TAL
72
TIG Advisors LLC
New York
$4.05M +$4.05M +161,253 New
Wells Fargo
73
Wells Fargo
California
$4.05M +$583K +23,192 +17%
Mirae Asset Global ETFs Holdings
74
Mirae Asset Global ETFs Holdings
Hong Kong
$3.95M +$426K +16,952 +12%
California State Teachers Retirement System (CalSTRS)
75
California State Teachers Retirement System (CalSTRS)
California
$3.91M +$889K +35,394 +29%
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