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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 %
SWM
326
Spire Wealth Management
Virginia
$7.4K – – –
SL
327
Salomon & Ludwin
Virginia
$6.85K +$6.85K +40 New
GWM
328
Geneos Wealth Management
Colorado
$6.73K -$9.76K -58 -59%
FHA
329
First Horizon Advisors
Tennessee
$6.56K – – –
GWSG
330
GPS Wealth Strategies Group
Colorado
$6.22K – – –
FMII
331
Farmers & Merchants Investments Inc
Nebraska
$6.06K +$505 +3 +9%
HWM
332
Hemington Wealth Management
Virginia
$6K -$947 -6 -14%
SPIA
333
Steward Partners Investment Advisory
New York
$5.89K -$3.2K -19 -35%
Nisa Investment Advisors
334
Nisa Investment Advisors
Missouri
$5.72K +$673 +4 +13%
LFG
335
Larson Financial Group
Missouri
$5.55K +$1.85K +11 +50%
IWM
336
Inlight Wealth Management
Georgia
$5.05K – – –
BIA
337
Bell Investment Advisors
California
$4.88K +$2.02K +12 +71%
VWM
338
Valley Wealth Managers
New Jersey
$4.37K – – –
S
339
Sachetta
Massachusetts
$3.87K – – –
JWA
340
JFS Wealth Advisors
Pennsylvania
$3.37K -$505 -3 -13%
W
341
WealthCollab
Washington
$3.37K – – –
AG
342
AmeriFlex Group
Nevada
$3.33K – – –
BBHC
343
Brown Brothers Harriman & Co
New York
$2.86K +$2.86K +17 New
KIM
344
Kestra Investment Management
Texas
$2.68K +$1.51K +9 +129%
PWMG
345
Private Wealth Management Group
New Jersey
$2.52K -$1.51K -9 -38%
WA
346
WPG Advisers
Maryland
$2.52K – – –
JSAM
347
J. Safra Asset Management
New York
$2.52K – – –
WA
348
Whipplewood Advisors
Colorado
$2.36K +$2.36K +14 New
ATC
349
Adirondack Trust Company
New York
$2.02K – – –
FFO
350
Fortitude Family Office
Arizona
$1.85K +$1.85K +11 New
12 13
14
15 16