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Masimo
MASI

Overview Fund Activity

369 hedge funds and large institutions have $9.59B invested in Masimo in 2025 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 124 increasing their positions, 135 reducing their positions, and 58 closing their positions.

Holders
369
Holders Change
-23
Holders Change %
-5.87%
% of All Funds
4.96%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
43
Increased
124
Reduced
135
Closed
58
Calls
$2.02M
Puts
$403K
Net Calls
+$1.62M
Net Calls Change
-$17K

Top Buyers

1
T. Rowe Price Investment Management
1
T. Rowe Price Investment Management
Maryland
$421M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$129M
3
BlackRock
3
BlackRock
New York
$1.77B
4
Westfield Capital Management
4
Westfield Capital Management
Massachusetts
$199M
5
Massachusetts Financial Services
5
Massachusetts Financial Services
Massachusetts
$416M

Top Sellers

1
Artisan Partners
1
Artisan Partners
Wisconsin
$0
2
Point72 Asset Management
2
Point72 Asset Management
Connecticut
$4.07M
3
Capital Research Global Investors
3
Capital Research Global Investors
California
$312M
4
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$88M
5
Millennium Management
5
Millennium Management
New York
$657K
Name Market Value Shares Shares
Change 		Shares
Change %
Bank of Montreal
176
Bank of Montreal
Ontario, Canada
$936K 5,563 -565 -9%
BOSSRA
177
B.O.S.S. Retirement Advisors
Utah
$897K 5,332 – –
Neuberger Berman Group
178
Neuberger Berman Group
New York
$853K 5,069 -69,893 -93%
SOADOR
179
State of Alaska Department of Revenue
Alaska
$850K 5,054 -150 -3%
QCG
180
Quadrant Capital Group
Ohio
$838K 4,981 +933 +23%
Franklin Resources
181
Franklin Resources
California
$825K 4,902 -7,384 -60%
BPC
182
Bryce Point Capital
New York
$822K 4,885 +4,885 New
BCI
183
Brinker Capital Investments
Pennsylvania
$819K 4,871 +104 +2%
EAM
184
Eukles Asset Management
Ohio
$816K 4,853 -263 -5%
Public Employees Retirement Association of Colorado
185
Public Employees Retirement Association of Colorado
Colorado
$788K 4,685 -156 -3%
LNWWM
186
Laird Norton Wetherby Wealth Management
California
$767K 4,557 +4,557 New
BNP Paribas Financial Markets
187
BNP Paribas Financial Markets
France
$754K 4,483 -66,240 -94%
Kovitz Investment Group Partners
188
Kovitz Investment Group Partners
Illinois
$739K 4,396 +480 +12%
Mitsubishi UFJ Asset Management
189
Mitsubishi UFJ Asset Management
Japan
$727K 4,319 +280 +7%
VAS
190
Vestmark Advisory Solutions
Massachusetts
$715K 4,250 +976 +30%
PAG
191
Private Advisor Group
New Jersey
$714K 4,244 -11 -0.3%
Federated Hermes
192
Federated Hermes
Pennsylvania
$707K 4,201 -46,801 -92%
US Bancorp
193
US Bancorp
Minnesota
$701K 4,170 -156 -4%
SW
194
SteelPeak Wealth
California
$684K 4,067 -3 -0.1%
TE
195
Tema ETFs
New York
$664K 3,949 -594 -13%
NIM
196
NEOS Investment Management
Connecticut
$664K 3,949 -594 -13%
Millennium Management
197
Millennium Management
New York
$657K 3,907 -130,899 -97%
HighTower Advisors
198
HighTower Advisors
Illinois
$654K 3,889 -661 -15%
RA
199
RFG Advisory
Alabama
$654K 3,887 -2,893 -43%
Prudential Financial
200
Prudential Financial
New Jersey
$651K 3,872 +682 +21%
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