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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 %
PS
351
Principal Securities
Iowa
$673 4 -54 -93%
PWMG
352
Prestige Wealth Management Group
New Jersey
$673 4 – –
HWP
353
Highline Wealth Partners
California
$673 4 – –
CH
354
Cromwell Holdings
Wyoming
$673 4 +4 New
HFS
355
Hughes Financial Services
Virginia
$579 4 – –
SC
356
SouthState Corp
Florida
$505 3 -77 -96%
SIC
357
SJS Investment Consulting
Ohio
$505 3 -2 -40%
BFS
358
Bare Financial Services
Pennsylvania
$505 3 – –
RWM
359
Rialto Wealth Management
New York
$337 2 +2 New
CFP
360
Comprehensive Financial Planning
Pennsylvania
$336 2 – –
BHWM
361
Bay Harbor Wealth Management
Maryland
$336 2 +1 +100%
HIA
362
HFM Investment Advisors
New Jersey
$336 2 +1 +100%
AF
363
Advisornet Financial
Minnesota
$336 2 +2 New
TPWA
364
Twin Peaks Wealth Advisors
California
$300 2 +2 New
DF
365
DecisionPoint Financial
Arizona
$170 1 +1 New
PWM
366
Parkworth Wealth Management
California
$168 1 – –
RIL
367
Rothschild Investment LLC
Illinois
$168 1 – –
TIM
368
Tortoise Investment Management
New York
$168 1 +1 New
FMP
369
Financial Management Professionals
Texas
$168 1 +1 New
Artisan Partners
370
Artisan Partners
Wisconsin
– – -299,023 Closed
ECM
371
ExodusPoint Capital Management
New York
– – -59,792 Closed
CF
372
Corebridge Financial
Texas
– – -49,327 Closed
IHAM
373
Integral Health Asset Management
New York
– – -45,000 Closed
LCG
374
Lisanti Capital Growth
New York
– – -30,485 Closed
RG
375
Redmile Group
California
– – -26,062 Closed
13 14
15
16 17