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Masimo
MASI

Overview Fund Activity

373 hedge funds and large institutions have $9.67B invested in Masimo in 2025 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 126 increasing their positions, 136 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
373
Holders Change
-19
Holders Change %
-4.85%
% of All Funds
5%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
43
Increased
126
Reduced
136
Closed
58
Calls
$10.1M
Puts
$3.87M
Net Calls
+$6.21M
Net Calls Change
+$4.58M

Top Buyers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
+$139M
2
Viking Global Investors
Viking Global Investors
Connecticut
+$129M
3
BlackRock
BlackRock
New York
+$107M
4
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$85.7M
5
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
+$84.5M

Top Sellers

1
Artisan Partners
Artisan Partners
Wisconsin
-$49.8M
2
Point72 Asset Management
Point72 Asset Management
Connecticut
-$49M
3
Capital Research Global Investors
Capital Research Global Investors
California
-$33.7M
4
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$30.3M
5
Millennium Management
Millennium Management
New York
-$22M
Name Holding Trade Value Shares
Change 		Shares
Change %
AAM
101
Advisors Asset Management
Colorado
$4.1M -$489K -2,905 -11%
Citadel Advisors
102
Citadel Advisors
Florida
$4.08M -$4.24M -25,205 -51%
Point72 Asset Management
103
Point72 Asset Management
Connecticut
$4.07M -$49M -291,203 -92%
New York State Common Retirement Fund
104
New York State Common Retirement Fund
New York
$4.06M – – –
SCM
105
Sterling Capital Management
North Carolina
$3.91M +$448K +2,661 +13%
MAM
106
Montanaro Asset Management
United Kingdom
$3.85M -$1.59M -9,440 -29%
MOACM
107
Mutual of America Capital Management
New York
$3.76M -$82.8K -492 -2%
AB
108
Amalgamated Bank
New York
$3.66M +$182K +1,081 +5%
State of Wisconsin Investment Board
109
State of Wisconsin Investment Board
Wisconsin
$3.64M +$860K +5,110 +31%
PL
110
Perpetual Ltd
Australia
$3.56M -$1.52M -9,037 -30%
Treasurer of the State of North Carolina
111
Treasurer of the State of North Carolina
North Carolina
$3.54M +$202K +1,198 +6%
Allspring Global Investments
112
Allspring Global Investments
North Carolina
$3.53M -$2.94M -17,405 -45%
CCMINC
113
Cardinal Capital Management Inc (North Carolina)
North Carolina
$3.4M +$62.1K +369 +2%
Janus Henderson Group
114
Janus Henderson Group
United Kingdom
$3.36M – – –
VOYA Investment Management
115
VOYA Investment Management
Georgia
$3.29M +$1.23M +7,307 +60%
CB
116
Commerce Bank
Missouri
$3.27M +$2.42M +14,406 +287%
Verition Fund Management
117
Verition Fund Management
Connecticut
$3.08M -$21.1M -125,446 -87%
Wells Fargo
118
Wells Fargo
California
$3.06M -$55.2K -328 -2%
State of Tennessee, Department of Treasury
119
State of Tennessee, Department of Treasury
Tennessee
$3.06M – – –
PFSRSONJ
120
Police & Firemen's Retirement System of New Jersey
New Jersey
$2.85M +$204K +1,215 +8%
Ensign Peak Advisors
121
Ensign Peak Advisors
Utah
$2.69M +$142K +843 +6%
State of New Jersey Common Pension Fund D
122
State of New Jersey Common Pension Fund D
New Jersey
$2.67M – – –
Canada Pension Plan Investment Board
123
Canada Pension Plan Investment Board
Ontario, Canada
$2.66M – – –
Susquehanna International Group
124
Susquehanna International Group
Pennsylvania
$2.64M +$1.72M +10,251 +189%
YCM
125
Yousif Capital Management
Michigan
$2.63M -$24.4K -145 -0.9%
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