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Allegro MicroSystems

293 hedge funds and large institutions have $3.6B invested in Allegro MicroSystems in 2025 Q4 according to their latest regulatory filings, with 56 funds opening new positions, 79 increasing their positions, 122 reducing their positions, and 52 closing their positions.

New
Increased
Maintained
Reduced
Closed

8% more first-time investments, than exits

New positions opened: 56 | Existing positions closed: 52

0.3% more ownership

Funds ownership: 73.44%73.75% (+0.3%)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

1% less funds holding

Funds holding: 296293 (-3)

9% less capital invested

Capital invested by funds: $3.97B → $3.6B (-$365M)

35% less repeat investments, than reductions

Existing positions increased: 79 | Existing positions reduced: 122

65% less call options, than puts

Call options by funds: $11.9M | Put options by funds: $34.3M

Holders
293
Holders Change
-3
Holders Change %
-1.01%
% of All Funds
3.56%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.01%
New
56
Increased
79
Reduced
122
Closed
52
Calls
$11.9M
Puts
$34.3M
Net Calls
-$22.4M
Net Calls Change
+$122M
Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$624M -$105M -3,832,097 -14%
Vanguard Group
2
Vanguard Group
Pennsylvania
$375M -$2.5M -90,937 -0.6%
Capital Research Global Investors
3
Capital Research Global Investors
California
$346M -$102M -3,713,430 -22%
BlackRock
4
BlackRock
New York
$322M +$22.7M +824,039 +7%
Invesco
5
Invesco
Georgia
$202M +$64.4M +2,338,624 +44%
JP Morgan Chase
6
JP Morgan Chase
New York
$194M -$10.6M -383,845 -5%
State Street
7
State Street
Massachusetts
$141M +$2.15M +78,203 +1%
ClearBridge Investments
8
ClearBridge Investments
New York
$76.9M -$441K -16,021 -0.5%
Adage Capital Partners
9
Adage Capital Partners
Massachusetts
$74M +$33.8M +1,227,317 +78%
Citadel Advisors
10
Citadel Advisors
Florida
$67.5M +$61.3M +2,228,889 +672%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$63.2M +$684K +24,839 +1%
Morgan Stanley
12
Morgan Stanley
New York
$58.9M +$8.09M +294,107 +15%
Dimensional Fund Advisors
13
Dimensional Fund Advisors
Texas
$56.5M +$4.67M +169,597 +9%
NAMI
14
Nomura Asset Management International
Pennsylvania
$53.7M +$56M +2,036,212 New
ACM
15
Analog Century Management
New York
$49.9M +$19.7M +715,119 +61%
Principal Financial Group
16
Principal Financial Group
Iowa
$46M -$4.73M -171,778 -9%
Norges Bank
17
Norges Bank
Norway
$38.5M +$40.1M +1,457,805 New
Charles Schwab
18
Charles Schwab
California
$35.9M +$1.86M +67,425 +5%
Millennium Management
19
Millennium Management
New York
$35.4M +$14.8M +539,113 +67%
SBH
20
Segall Bryant & Hamill
Illinois
$32.9M -$2.08M -75,416 -6%
AllianceBernstein
21
AllianceBernstein
Tennessee
$30.3M -$42.4M -1,541,844 -57%
Point72 Asset Management
22
Point72 Asset Management
Connecticut
$29.5M +$3.65M +132,465 +13%
Wellington Management Group
23
Wellington Management Group
Massachusetts
$29.2M -$1.5M -54,580 -5%
Northern Trust
24
Northern Trust
Illinois
$26.8M +$114K +4,142 +0.4%
VOYA Investment Management
25
VOYA Investment Management
Georgia
$24.8M -$47.3K -1,718 -0.2%