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Allegro MicroSystems
ALGM

Overview Fund Activity

268 hedge funds and large institutions have $4.99B invested in Allegro MicroSystems in 2025 Q2 according to their latest regulatory filings, with 53 funds opening new positions, 93 increasing their positions, 101 reducing their positions, and 68 closing their positions.

Holders
268
Holders Change
-21
Holders Change %
-7.27%
% of All Funds
3.6%
Holding in Top 10
1
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-80%
% of All Funds
0.01%
New
53
Increased
93
Reduced
101
Closed
68
Calls
$29.3M
Puts
$236M
Net Calls
-$206M
Net Calls Change
-$166M

Top Buyers

1
Capital Research Global Investors
1
Capital Research Global Investors
California
$544M
2
AllianceBernstein
2
AllianceBernstein
Tennessee
$94.4M
3
Invesco
3
Invesco
Georgia
$214M
4
Norges Bank
4
Norges Bank
Norway
$48.1M
5
Neuberger Berman Group
5
Neuberger Berman Group
New York
$42.5M

Top Sellers

1
Citadel Advisors
1
Citadel Advisors
Florida
$51.9M
2
Millennium Management
2
Millennium Management
New York
$23.2M
3
FGP
3
Freestone Grove Partners
California
$0
4
SPPAM
4
Summit Partners Public Asset Management
Massachusetts
$39.5M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$274M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$932M 27,247,473 +326,357 +1%
Capital Research Global Investors
2
Capital Research Global Investors
California
$544M 15,904,357 +4,841,556 +44%
Vanguard Group
3
Vanguard Group
Pennsylvania
$486M 14,205,939 +105,922 +0.8%
BlackRock
4
BlackRock
New York
$403M 11,789,868 +118,310 +1%
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$274M 8,013,498 -982,308 -11%
Invesco
6
Invesco
Georgia
$214M 6,254,575 +1,418,934 +29%
State Street
7
State Street
Massachusetts
$178M 5,193,001 +108,402 +2%
ClearBridge Investments
8
ClearBridge Investments
New York
$108M 3,163,764 +2,177 +0.1%
AllianceBernstein
9
AllianceBernstein
Tennessee
$94.4M 2,759,872 +1,806,183 +189%
Wellington Management Group
10
Wellington Management Group
Massachusetts
$90.2M 2,636,839 -612,051 -19%
Macquarie Group
11
Macquarie Group
Australia
$88.2M 2,579,328 -56,686 -2%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$82.3M 2,405,986 +17,902 +0.7%
FCM
13
Frontier Capital Management
Massachusetts
$80.9M 2,365,957 -543,780 -19%
Adage Capital Partners
14
Adage Capital Partners
Massachusetts
$74.5M 2,177,560 +69,137 +3%
Principal Financial Group
15
Principal Financial Group
Iowa
$73.8M 2,157,337 -258,765 -11%
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$72.1M 2,107,804 +139,725 +7%
Morgan Stanley
17
Morgan Stanley
New York
$71M 2,076,352 -572,019 -22%
Citadel Advisors
18
Citadel Advisors
Florida
$51.9M 1,519,408 -2,814,205 -65%
Balyasny Asset Management
19
Balyasny Asset Management
Illinois
$50.3M 1,472,089 -854,375 -37%
Norges Bank
20
Norges Bank
Norway
$48.1M 1,407,943 +1,407,943 New
ACM
21
Analog Century Management
New York
$46.9M 1,371,590 -560,580 -29%
SBH
22
Segall Bryant & Hamill
Illinois
$45.4M 1,328,254 +16,728 +1%
T. Rowe Price Investment Management
23
T. Rowe Price Investment Management
Maryland
$44M 1,287,841 +7,595 +0.6%
Raymond James Financial
24
Raymond James Financial
Florida
$42.9M 1,255,182 +261,842 +26%
Neuberger Berman Group
25
Neuberger Berman Group
New York
$42.5M 1,244,415 +786,645 +172%
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